HomeMy WebLinkAboutCT 07-05; LA COSTA GREENS NEIGHBOROOD 1.3; UPDATE SOIL AND GEOLOGIC INVESTIGATION VOL 1 OF 2; 2001-06-25RECEIVED
APR 112008
ENGINEERING
DEPARTMENT'
UPDATE SOIL AND GEOLOGIC
INVESTIGATION
'VILLAGES OF LA COSTA-
THE GREENS
CARLSBAD, CALIFORNIA
VOLUME I OF Irr--__
PREPARED FOR ----_....J
REAL ESTATE COLLATERAL MANAGEMENT
COMPANY -c/o MORROW DEVELOPMENT INCORPORATED L'l
CARLSBAD, CALIFORNIA 0
• F:.:i!<'M ~
JUNE 25, 2001
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GEOCON
INCORPORATED
Project No. 06403-12-03
June 25, 2001
Real Estate Collateral Management Company
c/o Morrow Development
1903 Wright Place, Suite 180
Carlsbad, California 92008
Attention: Mr. Tim O'Grady
Subject: VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
GEOTECHNICAL CONSULTANTS
UPDATE SOIL AND GEOLOGIC INVESTIGATION
Gentlemen:
In accordance with your authorization (Contract Number 342) and our proposal No. LG-01192 dated
April 10, 2001, we have updated our supplemental geotechnical investigation report of the subject
site. This work complements previous soil and geologic investigations which have been conducted on
the property during the period of 1988 to date. The purpose of this report is to compile all relevant
previously generated data along with the results of the current study into a single document
presenting our conclusions and recommendations pertaining to the geotechnical aspects of developing
the site as proposed.
Significant geotechnical issues associated with the project include slope stability, remedial grading of
unsuitable soils, settlement of the alluvial soils left in place and rock rippability. However, it is our
opinion that the site may be developed as proposed, provided the recommendations of this report are
followed.
Should you have 'any questions regarding this report, or if we may be of further service, please
contact the undersigned at your convenience.
Very truly yours,
RCE22527 CEG 1778
AS:DFL:dlj
(6/del) Addressee
6960 Flanders Drive • San Diego, California 92121-2974 • Telephone (858) 558-6900 • Fax (858) 558-6159
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TABLE OF CONTENTS
1. PURPOSE AND SCOPE ...................................................................................................... :· .......... 1
2. SITE AND PROJECT DESCRIPTION .............................................................................. , ............ 2
3. SOIL AND GEOLOGIC CONDITIONS ......................................................................................... 3
3.1 Santiago Peak Volcanics (Jsp) ............................................................................................... 3
3.2 Santiago Fonnation (Ts) ........................................................................................................ 3
. 3.3 Lindavista Fonnation (Qln) ................................................................................................... 4
3.4 Terrace Deposits (Qt) ............................................................................................................. 4
3.5 Alluvium (Qal) ....................................................................................................................... 5
3.6 Colluvium (Qc) ...................................................................................................................... 5
3.7 Topsoil (not mapped) ............................................................................................................. 5
3.8 Undocumented Fill (Qudf) ..................................................................................................... 6
3.9 Compacted Fill (Qcf) ............................................................................................................. 6
4. GROUNDWATER ........................................................................................................ , .................. 6 j
5. GEOLOGIC ErAZARDS .................................................................................................................. 7
5.1 Faulting and Seismicity .......................................................................................................... 7
5.2 Liquefaction ............................................................................................................................ 8
6. GEOTECHNICAL LAND USE CHARACTERISTICS ................................................................. 8
6.1 General ................................................................................................................................... 8
6.2 Slope Stability ......................................................................................................................... 8
6.2.1 Stability Considerations ............................................................................................ 8
6.2.2 Stability Analysis ...................................................................................................... 9
6.3 Alluvium Settlement Considerations ..................................................... : ............................. 11
6.4. Existing Utility Lines Considerations .................................................................................. 12
6.S Rippability of Hard Rock ..................................................................................................... 12
7. CONCLUSIONS AND RECO:M:MENDATIONS ......................................................................... 14
7.1 General ................................................................................................................................. 14
7.2 Groundwater ........................................................................................................................ 15
7.3 Soil Excavation Characteristics ........................................................................................... 15
7.4 Grading ...... : ......................................................................................................................... 15
7.5 Subdrains .............................................................................................................................. 17
7.6 Settlement ............................................................................................................................ 18
7.7 Settlement Monitoring ...................................... : .................................................................. 18
7.8 Bulking and Shrinkage Factors ............................................................................................ 19
7.9 Slope Stability ............................................................................................................... , ...... 20
7.10 Foundation Recommendations ............................................................................................. 20
7.11 Retaining Walls and Lateral Loads ................................................................. ; .................... 24
7.12 Slope Maintenance ............................................................................................................... 25
7.13 Drainage ............................................................................................................................... 26
7.14 Plan Review ......................................................................................................................... 26
LIl\1:P'ATIONS AND UNIFORMITY OF CONDITIONS
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TABLE OF CONTENTS (Continued)
MAPS AND ILLUSTRATIONS
Figure 1, Vicinity Map
,Figure 2 -10, Geologic Maps (Map P,ocket, see Volume II)
Figures 11-13, Geologic Cross Sections (Map Pocket, see Volume II)
Figure 14, Typical Subdrain Detail
Figure 15, Typical Buttress Detail
Figure 16, Typical Stability Fill Detail
Figure 17, Slope Stability Analysis-Cut
Figure 18, Slope Stability Analysis-Fill
Figure 19, Surficial Slope Stability Analysis
APPENDIX A
FIELD INVE,STIGATION
Figures A-I through A-38, Logs of Large-Diameter Borings
Figures A-39 through A-55, Logs of Small-Diameter Borings
Figures A-58 through A-168, Logs of Trenches
Figures A-169 through A-f85, Logs of Air Track Borings
APPENDIXB
LABORATORY TESTING
Table B-1, Summary of Laboratory Maximum Dry Density and Optimum Moisture
Content Test Results
Table B-II, Summary of Laboratory Direct Shear Test Results
Table B-m, Summary of Laboratory Expansion Index Test Results
APPENDIXC
BORING AND TRENCH LOGS AND CONE PENETROMETER TESTS FROM
PREVIOUS INVESTIGATIONS
APPENDIXD ,
SELECTED BORING LOGS FROM RANCHO CARRILLO -MAJOR ROAD STUDY
APPENDIXE
SLOPE STABILITY ANALYSES
Figure B-1, Geologic Cross Section (Map Pocket)
Figures E-2 through E-6, Slope Stability Analyses
APPENDIXF
RECOMrvIENDED GRADING SPECIFICATIONS
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UPDATE SOIL AND GEOLOGIC INVESTIGATION
1. PURPOSE AND SCOPE
This report presents the consolidated fmdings of current and previous soil and geologic investigations
for The Greens of The Villages of La Costa in Carlsbad, California (see Vicinity Map, Figure 1). This
report is intended to present recommendations relative to geotechnical aspects of the site
development including remedial grading, slope stability, settlement, estimated rock 'rippability,
bulking and shrinkage factors, subsurface drainage, recommended grading specifications and
priliminary foundation design criteria. It should be noted that the site was previously known as La
Costa Northwest.
The scope of the investigation included a review of the following:
1. Preliminary Soil and Geologic Investigation For La Costa -Northwest Area, Carlsbad,
California, prepared by Geocon Incorporated, dated November 11, 1988 (project
No. D. 4230-H01).
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10.
Preliminary Rippability Study, La Costa Northwest. Carlsbad, California, prepared by
Geocon Incorporated, dated September 25, 1996 (project No. 04230-12-03).
Middle Eocene Paralic Facies, Northern San Diego County, California, by L. 1. Eisenberg
and P. K. Abbott, Eocene Geologic History San Diego Region, SEPM-GSA Fieldtrip
Guidebook, 1991.
Geologic Maps of the Northern part of S~ Diego County, California, DMG open file report
96-02.
Geotechnical Investigation for Rancho Carrillo Project -Major Roads,' Carlsbad,
California, prepared by Geocon Incorporated, dated January 15, 1993 (Project No. 04787-
12-01).
Preliminary Geotechnical .Jnvestigation, Bressi Ranch, Carlsbad, California, prepared by
Lighton & Associates, dated July 29, 1997.
Final Report of Testing and Observation Services During Grading and Construction of Site
Improvements, Poinsettia Sewage Lift Station, Rancho Carrillo, Carlsbad, California,
prepared by Geocon Incorporated, dated November 3,1998 (project No. 05845-12-13).
Final Report of Testing and Observation Services During Construction o/Site Improvements,
Rancho Carrillo, Offiite Sewer Main and Associated Access Road, Carlsbad, California,
prepared by Geocon Incorporated, dated April 22, 1999 (project No. 05845-12-12),
Unpublished reports, aerial photographs and maps on file with our firm.
Supplemental Soil and Geologic Investigation, Villages 0/ La Costa-The Greens, Carlsbad
California, prepared by Geocon Incorporated, dated March 24, 2000 (Project No. 06403-
12-01). .
Project No. 06403·12·03 -1· . June 25, 2001
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The scope of the most recent field investigation (March 2000) consisted of a site geologic
reconnaissance and the drilling of 11 small-diameter borings, 19 large-diameter borings and 113
exploratory trenches. In addition, 17 hydraulic air-track borings were excavated within the hard .rock
area located in the southeastern corner of the project. Laboratory tests were performed on selected
soil samples obtained at' various depths in the exploratory excavations to evaluate pertinent physical
properties. Details of the field exploration and laboratory testing programs are presented in Appendix
A and B, respectively. Logs of exploratory excavations from previous studies along with laboratory
test results and CPT (cone penetrometer test) soundings are presented in Appendix C. Selected logs
of exploratory excavation from Rancho Carrillo Major Roads project are presented in Appendix D.
The recommendations presented herein are based on analysis of data obtained from our recent and
previous exploratory excavations, laboratory tests and our experience with similar soil and geologic
conditions. The base map used for this study consists of a conceptual grading plan, 1 inch equals
100 feet (1 "= 100') scale, entitled Master Tentative Map for La Costa Greens, prepared by O'Day
Consultants, Inc., revised dated December 2000. The results of the field investigation'are compiled on
the Geologic Maps, Figures 2 through 10.
2. SITE AND PROJECT DESCRIPTION
The project encompasses approximately 660 acres of property situated northeast of the intersection of
Alga Road and E1 Camino Real in the City of Carlsbad, California (see Vicinity Map, Figure 1).
Existing residential development borders' the middle western, southeastern and southern portions,
with commercial and agricultural developments along the sQuthwestern and northern portions,
respectively. A golf course lies within the south-cental valley area.
With the exception of two residential structures in the east-central portion, the majority of the
property is -undeveloped. Several easements for buried pipelines, embankments associated with roads
and ponds, and bordering streets contain undocumented fill soils (see Geologic Maps, Figures 2
through 10).
Topographically, the site is' dominated by a major north-south draining alluvial valley fed by three
large tributaries in the north portion of the property. The majority of the site is characterized by
.. -moderately sloping hillside terrain dissected by a dendritic pattern of drainages which have a central
confluence draining southward into San Marcos Creek. Elevations vary from a high of approximately
400 feet Mean Sea Level (MSL) along the southeast boundary to a low of approximately 60 feet MSL
within the main drainage basin towards the southern property boundary.
Project No. 06403-12-03 -2-June 25, 4001
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We understand that project development will consist of grading the site to form terraced and sheet-
graded building pads that eventually will receive approximately 80.0 residential units along with
associated infrastructure.
A review of the referenced Mas.ter Tentative Map For La Costa Greens indicates that maximum
proposed cut and fill slopes with heights on the or~er of approximately 1 00· and 40· feet, respectively,
with a maximum slope inclination of 2: 1 (horizontal to vertical).
3. SOIL AND GEOLOGIC CONDITIONS
Six surficial soil types and three geologic formations were encountered during the investigations. The
surficial soils consist of compacted fill, undocumented fill, topsoil, colluvium, alluvium and landslide
debris. The formational units include Quaternary-aged Terrace Deposits, Tertiary-aged Santiago
Formation, and Jurassic-aged Santiago Peak Volcanics. Each of the soil types and. geologic units-
encountered are described below and their approximate mapped extent is depicted on Figures 2
through lO, Geologic Maps (map pocket).
3.1 Santiago Peak Volcanics (Jsp)
Fractured and weathered metavolcanic rocks of the Jurassic-aged Santiago Peak Volcanics are
exposed along the upper portions of slopes in the southeastern comer of the site. These rocks
typically display a highly variable depth of decomposition. Where completely decomposed, these
rocks excavate similar to blocky, hard, silty clay. Based on review of previQus investigations (see
referenced reports), and our preliminary borings and refraction seismic study, it is estimated that this
unit will generally be rippable to depths on the order of 5 to 15 feet. In general, hard rock areas will
require preblast considerations and special handling during grading as presented in the concluding
section of this report.
3.2 Santiago Formation (Ts)
The Eocene-aged Santiago Formation, consisting of dense, massive, white to light green, silty fine to
coarse sandstones and hard, greenish-gray to brown claystones and siltstones underlie the surficial
soils throughout the majority of the project site.
A review of data from the exploratory ~orings indicates that weak, fractured clay layers, "bedding
plane shears", and inactive fault features are present within the Santiago Formation. These features
will adversely impact the stability of the proposed major cut slopes within the development and
require remediation. The Santiago Formation generally possesses suitable geotechnical characteristics
in either an undisturbed andlor properly compacted condition. Excavations in the more sandy portions
may provide a sufficient quantity of ''very low" to "low" expansive capping materials. However, the
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June 25, 2001
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claystone and siltstone portions of the Santiago Formation are moderately to highly expansive.
Consideration should be given to restricting the placement or presence of these materials within 4 feet
of finish grade. Where selective grading is not practical and these expansive soils are placed or
exposed at grade, ~pecial design will be necessary for foundations and concrete flatwork, and
roadway pavement sections will be greater due to typically lower resistance R-Values of these soils.
it should be noted that in previous reports these materials were classified as the Delmar Formation
and the Torrey Sandstone. Recent publications including Reference No.4 classify these materials
with the Eocene-aged sediments of northern San Diego County as the Santiago Formation. This
should be taken into consideration in the review of logs of borings and trenches from our previous
studies, presented in Appendices C and D.
3.3 Lindavista Formation (Oln)
The Quaternary-aged Lindavista Formation comprised of light reddish-brown to orange gravelly silty
sandstones, was encountered as a cap of several feet on top of the Santiago Formation along the
nprthwest margins of the site. These materials, possesing "very low" to "low" expansive
characteristics, should provide good foundation-bearing characteristics ill either an undisturbed
and/or properly compacted condition.
3.4 Terrace Deposits (at)
Stream-deposited terrace deposits were encountered to overlie the Santiago Formation, mostly within
the lower portions of the maj or drainages. These sediments consist of moderately dense, yellowish to
reddish brown clayey sand and silty sand with some clay. In general, these materials, except for the
upper 2 to 3 feet, are considered suitable to receive fill. The upper 2 to 3 feet are usually weathered
and more porous and, therefore, will require remediation prior to receiving any fill or settlement
. sensitive improvements.
3.4.1 Landslide Debris (Ols)
One deep-seated landslide and several smaller surficial landslides were mapped within the site. The
larger landslide is located in the east central portion of the property. Boring No .. LB-8 indicates a
thickness of approximately 25 feet. The smaller landslides are generally shallower in depth. The
landslide debris generally consists of relatively compressible, clayey sand and sandy clay. Remedial
grading to remove the l~dslide debris will be necessary. One of the suficial landslides is located
along the northern property boundary and encroaches off-site. In the event the property boundary .
limits total removal, the proposed cut slope will be stabilized by construction of a buttress fill.
Project No. 06403-12-03 -4-June 25, 2001
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Preferably, permission to grade off-site should be obtained to allow total removal with regrading
considering future planned grading on the adjacent property.
3.5 Alluvium (Qal)
. The alluvium encountered onsite generally. consists of dark brown sandy clays to clayey sands.
Within the maj or drainages groundwater was encountered at depths. of 8 to 10 feet below the surface
during the site investigations. The maximum thickness of alluvium occurred in CPT -4 which
encountered approximately 60 feet of relatively easily penetrable sediments near the confluence of
the tributary drainages. The bottom part of the sediments may consist of weathered S.antiago
Formation or more granular materials, the extent of which is not known. The results of the field
investigation and analysis of the laboratory test data indicate that the alluvial soils underlying the site
can be classified as moderately to highly compressible. Development within areas containing
alluvium will require remedial grading in the form of removal and recompaction to mitigate potential
settlement problems. The anticipated depths of alluvium removal and recompaction are shown on
Figures 2 through 10. These removal depths vary from a range of 7 to 10 feet in the l~wer central
valley area to a range of 8 to 28 feet in the higher surrounding side valleys. Remedial work will be
limited by the depth of the groundwater within different areas. The settlement potential and stability
of the embankments placed over alluvial soils left in place present geotechnical considerations to
future site development and will require mitigation as discussed below.
3.6 Colluvium (Qc)
C.olluvial soils occur along the canyon side-slopes, low areas, the base of natural slopes, and along
the head scarps of landslides. These deposits are often indistinguishable from alluvium and thick
topsoil deposits, therefore, only the thicker, or potentially thicker areas have been mapped separately
on Figures 2 through 10. The maximum observed thickness of these materials is on the .order of
11 feet as exposed in Trench No. T-14, located in the central eastern portion of the site. In general,
these deposits consist of poorly consolidated sandy clays to clayey sands and are potentially
compressible. Development within areas underlain by colluvium will require remedial grading as
recommended in the concluding sections of this report.
3.7 Topsoil (not mapped)
Topsoil blankets the majority of the site to an average depth of approximately 2 feet. The topsoil is
typically ~omposed of dark brown silty sands to sandy clays. The potential for both expansion and
consolidation indicate that the ~opsoi1 should be removed and recompacted as discussed in the
Conclusions and Recommendations section of this report. I .
Project No. 06403-12-03 -5-June 25, 2001
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3.8 ~ Undocumented Fill (Qudf)
At least two generations of fill are present on the site. The earlier fills consist of pond embankmen~s
or dams installed pre-1953 which are of unknown compa~tion and depth. The approximate areal
extents are shown on the Geologic Maps. No trenches were performed in the embankment fills, but
obse.rvation of the exposed surficial soils indicates that the earthern structures are composed of silt
and clay derived from on-site materials.
Later generations of fill are associated with the burial of pipelines and .utilities, construction of roads
and adjoining subdivisions, or fill disposal areas in canyon areas along the southern margins of the
property. All undocumented fill are considered unsuitable in their present conditions and should be
removed and recompacted in areas of planned improvements.
3.9 Compacted Fill (Qcf)
Compacted fills have been placed within the project site during recent construction of the sewer
pump station located within the north central portion of the. project along with associated sewer
relocation and the access road. The sewer line traverses the property from east to west and was
constructed as a part of the development of the Rancho Carrillo project to the east. The grading for
the pump station, s.ewer trench backfill ~d construction of the access road was performed under
testing and ,observation services of Geocon Incorporated and reported in References 5 and 6.
4. GROUNDWATER
Groundwater seepage was observed in the form of a spring within the canyon 'located at the southeast
corner of the site. Numerous water seeps were encc;>untered in the exploratory excavations along the
northern and eastern boundary (see Boring Nos. LB-l, LB-8, LB-13, LB-17 and LB-l9 of the current
study, and Boring Nos. B-4, B-ll, and B-13 through B-17 of our previous investigation,
Appendix C). These seeps were found to occur within the Santiago Formation or within the landslide
debris and the Santiago Formation-Santiago Peak Volcanics contact. The depth of water seepage
varies. Irrigation from developments on the property margins, as well as perched water draining off a
relatively shallow westward sloping volcanic bedrock surlace may be responsible sources. Grading
plans should consider the groundwater conditions to assure drainage features, e.g., canyon sub drains,
drained stabilitylbuttress fills, etc., are incorporated into the fmal design as appropriate.
Due to the nature of the Santiago Formation, which consists of interbedded sandstone and
claystone/siltsto~e, seepage may occur along the proposed cut slopes with these materials. In
addition, a more permanent groundwater table is present within the alluvial valley and tributary
canyons. At the north-central confluence of drainages, the water table was approximately 8 to 10 feet'
below the surface (during our previous investigation). ne relationship between alluvial removals and
Project No. 06403-12-03 -6-June 25,2001
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the position of groundwater table will be discussed in the Conclusions and Recommendations section
of this report. In general, seepage and groundwater conditions should be expected to vary seasonally
as well as from irrigation and run off from off-site development up gradient.
5. GEOLOGIC HAZARDS
5.1 Faulting and Seismicity
It is our opinion, based on the site reconnaissance, evidenpe obtained in the exploratory. excavations
and a review of published geologic "maps and reports, that the site is not located on any)mown active
fault trace. A few minor inactive faults were encountered within the Santiago Formation. These faults
are generally in a north-south orientation. The nearest known active faults are the Rose Canyon Fault
and the Newport-Inglewood (offshore) located approximately 7 and 10 miles, respectively, to the
west and Elsinore Fault Zone which lies approximately 23 miles to the northeast.
Maximum Credible and Maximum Probable Seismic events of Magnitude 6.9 and Magnitude 5.7,
respectively, are postulated for the Rose Cayone Fault. The estimated Maximum Credible and
Maximum Probable Peak site acceleration are 0.30g and 0.15g, respectively. Seismic parameters for
the other regional faults" capable of generating ground acceleration at the site are summarized on
Table 5.1
TABLE 5.1
DETERMINISTIC SITE PARAMETERS FOR SELECTED FAUL TS*
Distance Maximum Credible Event Maximum Probable Event
FauItName From Site Maximum Peak Site Maximum Peak Site
(miles) Credible Acceleration Probable Acceleration
(Mag.) (g) (Mag.) (g)
Rose Canyon 7 " 6.90 -0.30 5.70 0.15
Newport-Inglewood-Offshore 10 6.90 0.23 5.80 0.11
Coronado Bank 22 7.40 0.16 6.30 0.08
Elsinore-Julian 23 7.10 0.13 6.40 0.08
Elsinore-Temecula 23 6.80 0.11 6.30 0.07
Palos Verdes 41 7.10 0.07 6,20 0.03
San Jacinto-Anza 46 7.20 0.06 6.90 0.05
*EQFault Computer Program, Blake 1997.
It is our opinion that the site could be subjected to moderate to severe ground shaking in the event of
a major earthquake. along any of the above-mentioned faults, however, the seismic risk at the site is
not considered to be significantly different than that of the surroundin~ developments of similar
geologic settings in the Carlsbad area.
Project No. 06403-12-03 -7-June 25, 2001
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5.2 Liquefaction
The potential for liquefaction during a strong earthquake is limited to cohesionless soils which are in
a relatively loose, unconsolidated condition and located below the groundwater level. Due to the
dense nature of the formational units, the removal and recompaction of the surficial soils and fine-
grained nature of the alluvial soils, the potential for seismically included soi1liquefaction occurring at
the site is considered to be low. The only exception may be along the eastern portion of the Poinsettia
Lane embankment flIl. Isolated zones of relatively loose saturated soils below water table may
liquefy during a strong gound motion ..
In addition to remedial grading, the area will receive lO to 20 feet of fill that would contribute to
densification of the susceptible zones. This will aid to reduce the potential for liquefaction.
Liquefaction analysis and further discussion will be presented in a separate report entitled
Geotechl1ical Investigation UorJ Poinsettia Lane Between Stations 10+00 to 69+60.
6. GEOTECHNICAL LAND USE CHARACTERISTICS
6.1 General
Based on findings of this study, there are three primary geotechnical considerations impacting the
construction of the site as planned. The first design consideration is the potential for .cut slope
instability caused by the presence of weak clay seams or bedding plane shears (BPS). The second
consideration is the settlement characteristics of the alluvial deposits that cannot be efficiently
removed and recompacted due to the presence of shallow groundwater within the drainage courses.
The third consideration is the rippability ~haracteristics of the volcanic rocks within the southeast
portion of the project. A discussion of each primary geotechnical consideration relative to proposed
development is presented below.
6.2 Slope Stability
6.2.1 Stability Considerations
The results of the field investigation for the project indicate the presence of numerous adverse
geologic conditions in some of the proposed major .cut slopes. The adverse geologic conditions
encountered include remolded bedding plane shears (BPS), weak clay strata, groundwater seepage,
~active faulting and landslide debris. Remedial grading procedures, such as construction of drained
buttress flIl or stability fill should be anticipated for cut slope excavations exposing these potentially
unsuitable geologic consitions.
Project No. 06403-12-03 -8 -June 25, 2001.
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Slope stability analyses for these slopes have been performed utilizing the parameters shown in
Table 6.2.2.2. The results are presented in Appen~ix E. A brief discussion of the proposed cut slopes
that are anticipated to be impacted by adverse conditions along with mitigation recommendations is
presented below. It should be noted that where the geologic adverse conditions are limited to the
surficial stability of the slopes, construction of a stability fill is recommended. For cut slopes in
homogeneous materials and fill slopes, a different method of stability analyses has been utilized as
discussed in the Conclusions and Recommendations section of this report.
6.2.2 Stability Analysis
6.2.2.1 General
Computer analyses of slope stability were performed utilizing the SLOPEW program based on
simplified Janbu Method of Slices or Simplified Bishop Method. The complexity of the site geology,
the results of the subsurface investigation, laboratory testing' and existing and future topography were
considered in performing the stability analyses. The analyses are summarized in Appendix E.
The geometry of proposed cut slopes were developed by extrapolating the conditions encountered in
the exploratory excavations. The computer-generated cross sections included herein presents the
simplified section configuration which were used in the analyses. The cross sections presented in
Figure E-l, Appendix E, are the original geologic sections from which the computer-generated
sections were generated.
Details of stability and buttress fill construction are addressed in section 7.9 below.
6.2.2.2 Design Parameter Selection
Drained shear tests were performed on relatively undisturbed samples of the prevailing lithologic
units. Additional shear tests were performed on a remolded sample of formational soils to evaluate
strength parameters suitable for the fill soil to be used to stabilize the slopes. The results of the shear ,
tests are presented in Table B-1 of Appendix B. The· following table presents the soil strength'
parameters that were utilized in the analyses. These values are derived from the laboratory test results
and experience with similar soil, and geologic conditions. A discus,sion of the specific cut slopes
requiring remediation by buttressing is addressed below. Locations by assigned number are shown on
Figures 2, 4,6 and 10.
Project No. 06403-12-03 -9-June 25, 2001
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TABLE 6.2.2.2
SOIL STRENGTH PARAMETERS
Soil Type Angle of Internal Friction Cohesion
q, (degrees) .. c (psi)
Santiago Formation 30 500
Weak Clay Beds 20 200
Compacted Fill (buttress) 25 300
Bedding Plane Shears (BPS) 10 100
6.2.2.3 Cut Slope No.1
TIns cut slope is located along the northern boundary. The conceptual grading plan indicates that the
maximum height of this slope will be approximately 45 feet. Figure E-1 presents a geologic cross
section of the slope (K-K'). A bedding plane shear was encountered in Boring No. B-IS at the
approximate elevation of 277 feet MSL. Slope stability analyses indicate that a buttress fill with a
minimum key width of 40 feet will be required to provide a factor of safety in excess of 1.5 ..
6.2.2.4 Cut Slope No.2
TIus slope is also located along the northern property boundary. During the site investigation, a
bedding plane shear (BPS) was encountered at the approximate elevation of261 feet MSL (see Cross
Section LL' on Figure E-!). In addition, the ea&tern portion of this slope will be cut into an existing
landslide. This slope has a maximum height of 40 feet. Slope stability analyses indicates a buttress fill
with a 40-foot wide shear key will be required.
6.2.2.5 Cut Slope No.3
Cut slope. No.3 is located just southeast of cut slope No.2. This slope has a maximum height of
approximately 37. A soft saturated clay seam was encountered in Boring No. LB-14 at the
approximate elevation of 177 feet (MSL). This clay seam would daylight (if continuous) at the toe of
the proposed cut slope. Geologic Cross Section M-M' Figure E-I depicts the anticipated geologic
condition. A buttress fill with a minimum width of 40 feet has been ·designed for this slope.
6.2.2.6 Cut Slope. No.4
The proposed approximately 100 feet high cut slope is located within the east-central postion of the
site. The subsurface exploration indicates a presence of an inactive fault that may impact the gross
stability of this slope (see Cross Sections GG', NN', and Boring No. B-l). The slope stability analyses
Project No. 06403-12-03 -10 -June 25, 2001
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indicates that based on the information available, this cut slope should have an adequate factor of
safety against deep-seated failure. The lower portion of this cut slope, however, may require
construction of a stability fill due to the possibility of groundwater seepage near the toe of the slope.
6.2.2.7 Cut Slope No.5
This cut slope is located along the south-facing slope, within the southeast portion of the project,
adjacent to the SDG&E easement. Review of the log for Boring No. LB-7 indicate,s the presence of a .
bedding plane shear at approximate elevation of 176 feet' (MSL) (see Cross Section' 00' on
Figure E-l). Stability analysis indicates a factor of safety of less than 1.5 for the proposed cut slope.
Therefore, a buttress fill with a minimum shear key width of 40 feet will be necessary to stabilize
this slope.
6.3 Alluvium Settlement Considerations
Where total removal and recompaction of the alluvial soils is not practical due to the presence of
groundwater, alluvium will be left in place. Planned embankment fill placed within certain portions
of the main drainages will be affected by the compressibility of alluvial soils not removed.
The amount of settlement that could occur is a function of thickness and compressibility of the layers
within the alluvial deposits, and the magnitude of additional vertical loading resulting froD;l placement
of fill and/or structures. The majority of the alluvium/colluvium will be removed within the two
drainage features'where groundwater will not restrict grading. However, it is estimated that between
20 and 40 feet of saturated alluvial soils will be left in place underneath the proposed Po~settia Lane
and the area just to the north. A review of the conceptual grading plan indicates that between
approximately 10 and 20 feet of fill will be placed on the Poinsettia Lane and tip to approximately
25 feet on the area just north of the road within the northeast portion of the project site. The amount
of estimated settlement, depending upon the specific locations, ranges from 2 to 8 inches. The
majority of the se~lement is anticipated to occur during construction. The post-construction
settlement dependant on the proposed fll1 height will take anywhere from 2 to 6 months for
90 percent consolidation (primary settlement).
The proposed embankment fill associated with the extension of Alicante Road, to be located just
northeast of the golf course, will be underlain by approximately 60 feet of alluvium. The 'proposed
additional flll for the embankment ranges from 15 to 20 feet. The total settlement is estimated to be
approximately 10 to 12 inches with the given embankment loading. The time required for primary
settlement to occur is estimated at 6 to 8 months.
Project No. 06403-12-03 -11-June 25, 200 i
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The removal and recompaction of the alluvial soils for the central portion of Poinsettia J;.,ane will also
be limited due to the close proximity of the golf course. Groundwater should not be a constraint in
. this area.
If the site development schedule cannot accommodate the time required to allow the primary
settlement to dissipate, the installation of wick drains prior to placement of the embankment fills
should be considered. The use of wick drains could reduce the settlement period of 6 to 8 months to I
to 3 months.
A settlement monitoring program consisting .of buried settlement plates and surface monuments
should be established for each settlement-sensitive area. A detail of settlement monitoring program is
presented hereinafter.
6.4 : Existing Utility Lines Considerations
A group of five sewer lines and a single 24-inch diameter forced sewer line traverse the site from east
to west, along the future Poinsettia Lane aligriment. In certain areas, underlain primarily by alluvia:l
soils, planned road way embankment grading will conflict with the alignments of the existing sewer
lines. It is understood that some ofthese lines will be abandoned. The remaining lines will have to
stay in operation. They will ultimately be relocated within the Poinsettia Lane embankment, after
primary settlement is completed. A more detailed discussion of this issue along with conclusions and
recommendations will be presented in a separate report entitled Geotechnical Investigation for
Poinsettia Lane Between Stations 10+00 and 69+60.
6.5 Rippability of Hard Rock
The Santiago Peak Volcanics (Jsp) are exposed along the upper slopes in the southeast po~ion of the
site. These rocks are at various stages of weathering, and will therefore excavate differently. A
rippibility study was performed to evaluate potential difficulty in excavations during gradin~ in this
area.
Initially, ten seismic refraction traverses were conducted in 1996. This was followed up by
. excavating 17 air-track borings during the recent phase of investigation. The results indicate a
variable but relatively shallow depth of rippable materials. It appears that the depth of rippable
materials increases at lower site elevations. It should be noted, however, that the actual extent of
rippability may exceed the interpreted depth where fracturing within the rock is present. It is our
experience that where the fracturing is extensive, grading may be possible, although more difficult
grading in this condition requires an extensive irrigation soaking to soften the fracture zone;:;.
Project No. 06403-12-03 -12-June 25, 2001
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The approximate depth of rippable materials are shown next to the locations. of the air-track borings
on Figures 8 and 10. The logs of the air-track borings are presented in Appendix A ..
Project No. 06403-12-03 -13 -June 25, 2001
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7.1
7.1.1
7.1.2
7.1.3
7.1.4
7. CONCLUSIONS AND RECOMMENDATIONS
General
No soil or geologic conditions were encountered during this investigation performed by
Geocon, Incorporated or those previous studies referenced that would preclude the
development of the property as presently planned, provided the recommendations of this
report are followed.
The surficial soil units (undocumented fill, topsoil, colluvium, alluvium, and landslide
debris) are not considered suitable for support of fill or structural loads in their present .
condition and will require remedial grading where not limited by the presence of
groun4water.
The settlement potential of the alluvial \ deposits left in place will require special
consideration during the planning and construction of site improvements. A surcharge
grading program, including settlement instrumentation and monitoring will be required for
those areas of planned improvements within the zone of influence of left-in-place
alluvial soils.
.The stability of proposed cut slopes within the site possess a 'significant geotechnical
consideration to development. Drained buttresses and stability fills will be required to
stabilize slopes underlain by potentially unstable geologic features.
7.1.5 Grading and installat~on of deeper utilities within the area underlain by rock (Santiago Peak
Volcanics) will be difficult, especially at the lower portion of planned excavations. Blasting
along with special handling of the rock should be anticipated. Building pads and streets
should be undercut to allow capping with at least 3 feet of granular soils to facilitate
installation of surface improvements.
7.1.6 Remedial grading to stabilize adverse geologic conditions may require encroaching beyond
the property limits in certain areas, e:g., Cut Slope No.2 and possibly Cut Slope No.1, to
. effect total removals. Ther~fore, permission to grade off-site should be obtained.
Furthermore, the remedial grading should consider future grading planned for the adjacent
property.
7.1.7 A suspected water well was encountered during our field investigation near CPT 4 at the
.central confluence of drainage. All encountered wells should be properly abandoned per
the County of San Diego Department of Environmental Health.
Project No. 06403-12-03 -14 -June 25, 2001
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7.2
7.2.1
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
Groundwater
The principal portion of the project where groundwater will impact site development is the
.area within the main canyon. Remedial grading of the compressible alJuvial deposits will
be limited to approximately 3 feet above the groundwater. Groundwater seepage was also
encountered in some of the exploratory excavations. It is recommended that periodic
observations be made by the soil engineer or the engineering geologist during grading for
evaluating for the presence of groundwater. It is further recommended that after canyons
are cleaned of unsuitable soils, a subdrain be installed within the bottom of the removal
areas to reduce the potential for groundwater buildup within the canyon fills.
Soil Excavation Characteristics
Based on field observations and laboratory tests, the prevailing soils are anticipated to vary
from ''very low" expansive sandy soils to "medium" to "high" expansive silty clays.
Excavation of the on-site surficial and formational units should be possible with moderate
to heavy effort with conventional heavy-duty equipment. The alluvium and colluvial soils
may be wet to saturated and grading should anticipate the need to dry back or mix with
drier material prior to their use as compacted fill.
Excavation of the volcanic rocks would require heavy ripping and possible blasting. It is
estimated that the proposed grading will encounter rippable rock to depths on the order of 5
to 15 feet below existing ground surface. Surface blasting will be required where highly
resistant volcanic rocks are exposed at existing grade. It is likely, however, that excavatio~s
greater than 15 feet within the major cut areas will encounter marginal to nonrippable rock
conditions. Oversize rocks should be placed in accordance with the Recommended Grading
Specifications presented in Appendix F.
Grading
All grading should be performed in accordance with the city of Carlsbad grading ordinance
and the Recommended Grading Specific~tions contained .in Append~ F. Where the
recommendations of Appendix F conflict with this section of the report, the
recommendations of this section shall take precedence.
Prior to commencing grading a preconstrtiction conference should be held at the site with
the grading contractor, civil engineer and geotechnical engineer in attendance. Specified
I .
soil handling andlor the grading plans can be discussed at that time.
Project No. 06403-12-03 -15-June 25, 2001
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7.4.3
7.4.4
7.4.5
7.4.6
7.4.7
7.4.8
Site preparation should begin with the removal of all deleterious material and vegetation.
The depth of removal should be such that material exposed in cu~ areas or soils to be used
as fill is relatively free of organic matter. Material generated from stripping and/or site
demolition should be exported from the site.
Rock generated from grading and/or blasting should be handled in accordance with the
procedures recommended in Appendix F.
All potentially compressible surficial soils (un~ocumented fill, topsoil, alluvium,
colluvium, and landslide debris) within areas of planned grading should be removed to fIrm
natural ground (except where limited by groundwater) and properly compacted prior to
placing additional fill and/or structural loads. The actual extent of removals shall be
determined in the field by the soil engineer and/or engineering geologist. Overly wet,
surficial materials will require drying back and/or mixing with drier soils to facilitate
proper compaction.
If groundwater is encountered during remediation of the alluviUlll, as anticipated along the
lower elevation areas of the main drainage courses, removals should be terminated at about
3 feet above the water level. It is recommended that these areas be "pot-holed" and
observed by the project geologist to verify the groundwater elevation during grading.
During remedial grading temporary slopes should be. inclined no steeper than
l:l(horizontal to vertical). Grading should be scheduled to backfill against these slopes as
soon as practical and no temporary slope should be left exposed longer than 2 days. More
stringent grading scheduling requirements may be imposed by the soils engineer when
performing removals adjacent to the property boundary.
The site should then be brought to fmal sub grade elevations with structural fill compacted
in layers to design fmish grade elevations. In general, soils present on site are suitable for
re-use as fill if free from vegetation,. debris and other deleterious material. All fill,
including backfill and scarified ground surfaces: should be compacted to at least 90 peFcent
of maximum dry density at approximately 2 percent over optimum moisture content, as
determined in accordance with ASTM test proqedure D 1557-91.
7.4.9 Areas of planned improvements designated as underlain by or within the zone of influence
of left-in-place alluvium should be surcharged by placing additional fill to a depth of 5 feet
above proposed finished grade, including slopes. The surcharge shall remain in place until
the soils engineer reconlmends removal. The .decision to surcharge shouid be made early in
the grading phase and based on the benefit to the overall development schedule.
Project No. 06403-12·03 -16-JUlle 25,2001
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7.4.10 To reduce the potential for differential settlement, it is recommended that the cut portion of
cut-fill building pads be undercut at least 4. feet and replaced with compacted "very low" to
"low" expansive fill soils. The bottom of the undercut portion should be sloped at about
1 percent toward the fill portion to facilitate drainage of future subsurface water.
7.4.11 Where practical, the upper 4 feet of all building pads. (~ut and fill) should consist of "very
low" to "low" expansive soils. This will require undercutting cut pads where unsuitable
expansive soils are exposed at finish grade. The more highly expansive fill soils should be
placed in deeper fill areas. "very low" to 'low" expansive soils.
7.4.12 Building pads and streets underlain by hard rock (Santiago Peak Volcanics) should be
undercut at least 3 feet and compacted fill consisting of "very low" to "low" expansive
soils placed to achieve finish grade.
7.5 Subdrains
7.5.1 Subdrains should be installed in the canyons to be filled. A cross-section of the subdrain
configuration is presented on Figure 14. The lower 2.0 feet of the sub drain installation
should consist of nonperforated pipe with a concrete cutoff wall constructed immediately
below the junction of the perfQrated pipe with the nonperforated pipe. The cutoff wall
should extend' at least 6 inches below the sides and bottom of the subdrain trench and
6 inches above the top of the pipe.
7.5.2 In order to maintain a drainage gradient within the canyon subdrain system, it may be
necessary to extend the nonperforated outlet pipe beyond the limits of planned grading
operations. As an alternative design, a properly compacted fill may be placed within the
lower canyon bottom until the minimum drainage gradient is achieved. Two sub drains
would then be installed along the fill/natural ground contacts. Where the natural slope
gradient exceeds 5 percen~ the perforated pipe may be deleted from the subdrain system
when recommended by the project soil engineer or geologist.
7.5.3 Heel drains installed in the buttresses and stability fIlls should be connected to the canyon
sub drain or storm drain system where possible and have clean outs instarled where possible.
7.5.4 After installation of the subdrains and heel drams, the project civil engineer should survey
its location and prepare "as-built" plans of the subdra,in location. Tl).e project civil engineer
should verify the proper outlet for the canyon sub drains and the contractor should ensure
that the drain system outlet is free ot obstructions. The recommended locations of the
Project No. 06403-12·03 ·17 -June 25, 2001
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7.6.1
7.6.2
7.6.3
7.6.4
7.6.5
7.7
,,7.7.1
7.7.2
canyon sub drains will be fmalized during a review of the final site grading and
improvement plans.
Settlement .
As previously discussed, embankment fills placed over alluvium left in place due to
groundwater grading constraints will experience varying amounts of settlement as a
function of the thickness of the compressible soils remaining and the loading of the fill.
The majority of the settlement is expected to occur during the grading phase of
development, however, the time to achieve primary settlement may extend to as long as
8 months.
It is recommended that grading in these areas be planned to occur early in the project
grading period to reduce the potential for conflict with installation of improvements.
Grading plans should include placement of a surcharge (5 feet) above the planned grade.
If the grading for Poinsettia Lane occurs prior to the grading of the project, it is
recommended that the embankment fill be widened approximately 35 feet'north of the road
right-of-way to reduce the potential of impact of the future grading within the adjacent
areas.
Installation of a wick drain system may be considered as a means to enable greatly
accelerating the time-rate of settlement.
SettiemeI).t monitoring will be required as discussed below to evaluate when the fill has
stabilized and further improvements may p~oceed.
Settlement Monitoring
Where compressible alluvial soils are left in-place a settlement monitoring program will be
required as discussed below. The numbers and 'locations of settlement monuments will be
determined after grading plans are fmalized.
At designated locations within the bottom of the over-excavated areas, a 4-foot-square, Y2-
inch-thick steel plate should be placed at 2 feet below the bottom elevation and leveled
with a layer of gravel. After surveying the plate (Horizontal and Vertic~), the plate should
be covered with 2 feet of gravel and at least 2 feet of fill soil placed before heavy
equipment is allowed to run over the plate location. The steel plate and gravel as well as
equipment for installation should be provided by the grading contractor.
Project No. 06403-12-03 -18-June 25, 2001
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7.7.3.
7.7.4
Subsequent to placement of the planned embankment fill, including the surcharge (if
recommended), Geocon, Incorporated will drill and "tag" the steel plate. The civil engineer
will then survey the plate to determine settlement which occurred during gradin~: At that
time a surface settlement monument will be installed to monitor settlement movement
thereafter.
Surveying of the surface monument should be performed by the project civil engineer on a
weekly basis with the results provided to Geocon, Incorporated. Settlement due to primary
consolidation will be considered to have ceased when survey readings show essentially no
movement over 4 consecutive weekly readings. At that time, Geocon Incorporated will
prepare a report, recommending surcharge removal, for submittal to and approval by the
City of Carlsbad.
7.8 Bulking and Shrinkage Factors
7.8.1 , Estiinates of embankment bulking and shrinkage factors are based on comparing laboratory
compaction tests with the density of the material in its natural state as encountered in the
exploratory excavations. It should be emphasized that variations in natural soil density, as
well as in compacted fill density, render shrinkage value estimates very approximate. As an
example, the contractor can compact the fill soils to any relative compaction of 90 percent
or higher of the maximum laboratory density,. Thus,-the, contractor has approximately a
10 percent range of control over ~e, fill volume. Based on the limited work performed to
date, it is our opinion that the following shrinkage and bulking factors can be used as a
basis for estimating how much the on-site soils may shrink or swell (bulk) when excavated
from their natural state and placed as compacted fills.
TABLE 7.8
SHRINK/BULK FACTORS
Soil Unit
Fill and Topsoil
Alluvium and Colluvium
Landslide Debris
Terrace Deposits
Santiago Formation and Lindavista Formation
, Santiago Peak Volcanics
ShrinkIBulk Factor
10-15 percent shrink
10-15 percent shrink
5-10 percent shrink
2-7 percent shrink
3-5 percent bulk
20-30 percent bulk
Project No. 06403-12-03 -19 -June 25, 2001
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7.9
7.9.1
7.9.2
7.9.3
7.9.4'
7.9.5
7.9.6
7.9.7
Slope Stability
Due to the presence of adverse geologic features within the Santiago Formation, we
recommend that certain cut slopes planned within the project be constructed as a drained
buttress fill to mitigate long term surficial slope stability ( see section 6.2). A typical detail
showing construction of a buttress fill is presented on Figure 15.
Construction of drained stability fill may also be required for' cut slope No.4 (see
Section 6.2). A typical detail showing construction of a drained stability fIll is presented on
Figure 16.
The results of analyses for gross stability indicate that cut and fill (non-stabilized) slopes
have a factor of safety in excess of 1.5 for the maximum anticipated heights (see Figures 17
and 18). Surficial slope stability analysis of fill slopes also indicates a factor of safety in
excess' of 1.5 (see Figure 19). \
The results of slope stability analyses for cut slopes requiring buttress fills are presented in
AppendixE.
It is recommended that all cut slopes be observed-during grading by an engineermg
geologist to verify that the soil and geologic conditions do not differ significantly from
those anticipated and to determine if adverse bedding, fractures or joints exist. Remedial
grading procedures can be recommended should adverse geologic conditions be observed.
The outer 15 feet of fill slopes, measured horizontal to th~ slope· face, should be composed
of properly compacted "granular soil" fill to reduce the potential for surficial sloughing.
All fill slopes should be overbuilt at least 3 feet horizontally, and cut to the design finish
grade. As an alternative, fill slopes may be compacted by back-roliing at vertical intervals
not to exceed 4 feet and then track-walking with a D-8 dozer, or equivalent, upon
completion such that the fill soils are uniformly compacted to at least 90 percent relative
compaction to the face of the finished slope.
7.9.8 All slopes should be planted, drained and properly maintained to reduce erosion.
7.10 Foundation Recommendations
7.10.1 The following foundation recommendations are for one-andlor two-story structures and are
based upon the assumption that the soil conditions within 4 feet of finish pad sub grade
Project No. 06403-12-03 -20-June 25, 2001
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consist of granular "low" expansive soil (Expansion Index less than 50). The
recommendations are separated into categories dependent upon the depth and geometry of
fill underlying a particular building pad and/or lot. Final foundation design
recommendations for each building will be presented in the fmal compaction report after
the grading for the individual building pads has been completed.
7.10.2 Foundations for either Category I, II, or ill may be designed for an allowable soil bearing
pressure of 2,000 pounds per square foot (pst) (dead plus live load). This bearing pressure
may be increased by one-third for transient loads such as wind or seismic forces.
TABLE 7.10.1
FOUNDATION RECOMMENDATIONS BY CATEGORY
Foundation Minimum Continuous Footing Interior Slab Footing Depth Category (inches) Reinforcement Reinforcement
I 12 One No.4 bar top and bottom 6 x 6 -10/10 welded Wire
mesh at slab mid-point
II 18 Two No.4 bars top and bottom No. 3 bars at-24 inches on
center, both directions
m 24 Two No.5 bars top and bottom No. 3 bars at 18 inches on
center, both directions
CATEGORY CRITERIA
Category I: Maximum fill thickness is less than 20 feet and Expansion Index is less than or
equal to 50.
Category II: Maximum fill thickness is less than" 50 feet and Expansion Index is less than or
eqUal to 90, or variation in fill thickness is between 10 feet and 20 feet.
Category m: Fill thickness exceeds 50 feet, or variation in fill thickness exceeds 20 feet, or Expansion
Index exceeds 90, but is less than 130, or alluvium left in place:
Notes:
1. All footings should have a minimum width of 12 inches.
2. Footing depth is measured from lowest adjacent subgrade (includirig topsoi~ if planned). These
depths apply to both exterior and interior footings ..
3. All interior living area concrete slabs should be at least 4 inches thick for Categories I and II and 5
inches thick for Category m. This applies to both building and garage slabs-on-grade.
4. All interior concrete slabs should be underlain by at leru;;t 4 inches (3 inches for Category III) of
clean sand or crushed rock.
5. All slabs expected to receive moisture sensitive floor coverings or used to store moisture sensitive
materials should be underlain by a vapor barrier covered with at least 2 inches of the clean sand
recommended in No.4 above.
ProjecfNo.06403-12-03 -21 -June 25, 2001
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7.10.3 The use of isolated footings which are located beyond the perimeter of the building and
support structural elements connect~d to the building is not recommended for Category m.
Where this condition cannot be avoided, the isolated footings should be connected to the
building foundation system with grade beams.
7.10.4 For Foundation Category ill, the structural slab design should consider using interior
stiffening beams and connecting isolated footings andlor increasing the slab thickness. In
addition, consideration should be given to connecting patio slabs, which exceed 5 feet in
width, to the building foundation to reduce the potential for future separation to occur.
7.10.5 No special subgrade preparation is deemed necessary prior to placing concrete, however,
the exposed foundation and slab sub grade soils should be sprinkled, as necessary, to
maintain a moist soil condition as would be expected in any such concrete placement.
However, where drying of subgrade soils has occurred, reconditioning of surficial soils will
be required. This recommendation applies to foundations as wen as exterior concrete
flatwork.
7.10.6 Where buildings or other improvements are plamied near the top of a slope steeper than 3: 1
(horizontal:vertical), special foundations andlor design considerations are recommended
due to the tendency for lateral soil movement to occur.
• For fill slopes less than 20 feet high, building and wall footings should be deepened
such that the bottom outside edge of the footing is at least 7 feet horizontally from
the face of the slope.
• Where the height of the fill slope exceeds 20 feet, the minimum horizontal distance
should be increased to HJ3 (where H equals the vertical distance from the top of the
slope to the toe) but need not exceed 40 feet. For composite (fill over cut) slopes, H
equals the vertical distance from the top of the slope to the bottom of the fill
portion of the slope. An acceptable altern~tive to deepening the footings would be
the use of a post-tensioned slab and foundation system or increased footing and
slab reinforcement. Specific design parameters or recommet;ldations for either' of
these alternatives can be provided once the building location and fill slope
geometry have been determined. .
• For cut slopes in dense formational materials, or fill slopes inclined at 3:1 (hori-
zontal:verJ:ical) or flatter, the bottom outside edge of building and wall footings
should be at least 7 feet horizontally from the' face of the slope, regardless of slope
height.
• Swimming pools located within 7 feet of the top of cut or fill slopes 'are not
recommended. Where such a condition cannot be avoided, we recommend that the
portion of the swimming pool wall within 7 feet of the -slope face be designed
assuming that the' adjacent soil provides no lateral support. 1bis recommendation
applies to fill slopes up to 30 feet in height, and cut slopes regardless of height. For
Project No. 06403-12-03 -22-June 25, 2001
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swimming pools located near the top of fill slopes greater than 30 feet in -height,
additional recommendations may be required and Geocon Incorporated should be
contacted for a review of specific site conditions. .
Although other improvements which are relatively rigid or brittle, such as concrete
flatwork or masonry walls may experience some distress iflocated near the top of a
slope, it is generally not economical to mitigate this potential. It may be possible,
however, to incorporate design measures which would permit some lateral soil
movement without causing extensive distress. Geocon Incorporated should be
consulted for specific recommendations.
7.10.7 As an alternative to the foundation recommendations for each category, consideration
should be given to the use of post-tensioned concrete slab and foundation systems for the
support of the proposed structures. The post-tensioned systems should be designed by a
structural engineer experienced in post-tensioned slab design and design criteria of the
Post-Tensioning Institute (UBC Section 1816). Although this procedure Was developed for
expansiv~ soils, it is Understood that it can also be used to reduce the potential for
foundation distress due to differential fill settlement. The post-tensioned design should
incorporate the geotechnical parameters presented on the following table entitled Post-
Tensioned Foundation System Design Parameters for the particular Foundation Categ.ory
designated.
TABLE 7.10.2
POST-TENSIONED FOUNDATION SYSTEM DESIGN PARAMETERS
Post-Tensioning Institute (PTI) Foundation Category.
Design Parameters I n m.
1. Thornthwaite Index -20 -20 -20
2. Clay Type -Montmorillonite Yes Yes Yes
3. Clay Portion (Maximum) 30% 50% 70%
4. Depth to Constant Soil Suction 7.0 ft. 7.0 ft. 7.0 ft.
5. Soil Suction 3.6 ft. 3.6 ft. 3.6 ft.
6. Moisture Velocity 0.7 in.lmo. 0.7 inJmo. 0.7 in.lmo.
7. Edge Lift Moisture Variation Distance 2.6 ft. 2.6 ft. 2.6 ft.
8. Edge Lift 0.41 in. 0.78 in. 1.15 in.
9. Center Lift Moisture Variaticn Distance 5.3 :ft. 5.3 ft. 5.3 ft.
10. Center Lift 2.12 in.-3.2I·in. 4.74 in.
7.10.8 UBC Section 1816 uses interior stiffener beams in its structural design procedures. If the
structural engineer proposes a post-tensioned foundation design method other than UBC
r Section 1816, we recommend that interior stiffener beams be used for Foundation
Categories II and m. The depth of the perimeter foundation should be at least 12 inches for
project No. 06403-12-03 -23 -June 25, 2001
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Foundation Category I. Where the Expansion Index for, a particular building pad exceeds
50 but is less than 91, the perimeter footing depth should be at least 18 inches; ~d where it
exceeds 90 but is less than 130, the perimeter footing depth should be at least 24 inches:'
Geocon Incorporated should be consulted to provide additional design parameters as
required by the structural engineer.
7.10.9 The recommendations of this report are intended to reduce the potential for cracking of
slabs due to expansive soils (if present), differential settlement of deep fills or fills of
varying thicknesses. However, even with the incorporation of the recommendations
presented herein, foundations, stucco walls, and slabs-on-grade placed on such conditions
may still exhibit some cracking due to soil movement and/or shrinkage. The occurrence of
concrete shrinkage cracks is, independent of the supporting soil characteristics. Their
occurrence may be reduced and/or controlled py limiting the slump of the concrete, proper
concrete placement and curing, and by the placement of crack control joints at periodic
intervals, in particular, where re-entry slab comers occur.
7.11 Retaining Walls and Lateral Loads
7.11.1 Retaining walls not restrained at the top and having a level backfill surface should be
designed for an active soil pressure equivalent to the pressure exert~d by a fluid density
of30 pounds per cubic foot (pct). Where the backfill will be inclined at no steeper than 2.0
to 1.0, an active soil pressure of 40 pcf is recommended. These soil pressures assume that
the backfill materials within an area bounded by the wall and a 1: 1 plane extending upward
from the base of the wall possess an Expansion Index of less than 50. For those lots with
fmish grade soils having an Expansion Index greater than 50 andlor where backfill
materials do not conform to the above criteria, Geocon Incorporated should be consulted
for additional recommendations.
7.11.2 Unrestrained walls are those that are' allowed to rotate'more than O.OOlH at the top of the
wall. Where walis are restrained from movement at the top, an additional uniform pressure
of 7H psf (where H equals the height of the' retaining wall portion of the wall in feet)
should be added to the above active soil pressure.
7.11.3 All retaining walls should be provided with a drainage system adequate to prevent the
buildup of hydrostatic forces and should be waterproofed as required by the project
architect. The use of drainage openings through the base of the wall (weep holes, etc.) is
not recommended where the seepage could be a nuisance or otherwise adversely :impact the
property adjacent to the base of the wall. The above recommendations assume a properly
compacted granular (Expansion Index less than 50) backfill material with no hydrostatic
Project No. 06403-12-03 -24-June,iS, 2001
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forces or imposed surcharge load. If conditions different than those described are
anticipated, or if specific drainage' details are desired, Geocon Incorporated should ·be
contacted for additional recommendations.
7.11.4' In general, wall foundations having a minimum depth and width of one foot may be
designed for an allowable soil bearing pressure of2,000 pst; provided the soil Within 3 feet
below the base of the wall has an Expansion Index of less than 90. The proximity of the
foundation to the top of a slope steeper than 3: 1 could impact the allowable soil bearing
pressure. Therefore, Geocon Incorporated should be consulted where such a condition is
anticipated. The location of wall footings, however, should comply. with the
recommendations presented in Section 7.10.6.
7.11..5 For resistance to lateral loads, an allowable passive earth pressure equivalent to a fluid·
density of 3 00 pcf is recommended for footings or shear keys poured neat against properly
compacted granular fIll soils or undisturbed natural soils. The allowable passive pressure
assumes a horizontal surface extending at least 5 feet or three times the surface generating
the passive pressure, whichever is .greater. The upper 12 inches of material not protected by
floor slabs or pavement should not be included in the design for lateral resistance. An
allowable friction coefficient of 0.4 may be used for resistance to sliding between soil and
concrete. This friction coefficient may be combined with the allowable passive earth
pressure when determining resistance to latera1loads.
7.11.6 The recommendations presented above are generally applicable to the design of rigid
concrete or masonry retaining walls having a maximum height of 8 feet. In the event that
walls higher than 8 feet or other types of walls are planned, such as crib-type walls, Geocon
Incorporated should be consulted for additional recommendations.
7.12 .. Slope Maintenance
7.12.1 Slopes that·are steeper than 3:1 (horizontal:vertical) may, under conditions which are both
difficult to prevent and predict, be susceptible' to near surface (surficial) slope instability.
The instability is typically limited to the outer three feet of a portion of the slope and
usually does not directly impact the improvements on the pad areas above or below the
slope. The occurrence of surficial instability is more prevale;nt on fill slopes and is
generally preceded by a period of heavy rainfall, excessive irrigation, or the migration of
subsurface seepage. The disturbance andlor loosening of the surficial soils, as might result
from root growth, soil expansion, or excavation for irrigation line& and slope plap.ting, may
also be a significant contributing factor to surficial instability. It is, tl,lerefore, recom-
mended that, to the maximum extent practical: (a) disturbedlloosened surficial soils be
Project No. 06403-12-03 -25-
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either removed or properly recompacted, (b) irrigation systems be periodically ,inspected
and maintained to eliminate leaks and excessive irrigation, and (c) surface drains on and
adjacent to slopes be periodically maintained to preclude ponding or' erosion.' It should be
'noted that although the incorporation of the above recommendations should reduce the
potential for surficial slope instability, it will not eliminate the possibility, and, therefore, it
may be necessary to rebuild or repair a portion of the project's slopes in the future.
7.13 Drainage
7.13.1 Establishing proper drainage is imperative to reduce the potential for di~erential soil
movement, erosion and subsurface seepage. Positive measures should be taken to properly
finish grade the building pads after structures and other improvements are in place, so that
drainage water from the building pads and adjacent properties is directed to streets away
from foundations and tops of slopes. Experience has shown that even with these provisions,
, a shallow groundwater or subsurface condition can and may develop in areas where no
such condition existed prior to site development. This is particularly true where a
substantial increase in surface water infiltration results from an increase in landscape
irrigation.
7.14 Plan Review
7.14.1 The geotechnical engineer and engineering geologist should review the grading plans prior
to fmalization to verify their substantial conformance with the rec?mmendations of this
report and determine the necessity for additional comments, recommendations and/or
analysis.
7.14.2 In the event foundations are designed as post-tensioned, the geotechnical engineer ~hould
also review the foundation plans prior to fmalizing to verify conformance with the .
recommendations of this report.
Project No. 06403-12-03 -26· June 25,2001
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2.
3.
LIMITATIONS AND UNIFORMITY OF CONDITIONS
The recommendations of this report pertain only to the site investigated and are based upon
the assumption that the soil conditions do not deviate from those disclosed in the
investigation. If any variations or undesirable conditions are encountered during construction,
,or if the proposed construction will differ from that anticipated herein, Geocon Incorporated
should be notified so that supplemental recommendations can be given. The evaluation or
identification of the potential presence of hazardous or corrosive materials was not part of the
scope of services provided by Geocon Incorporated.
This report is issued with the understanding that it is the, responsibility of the owner, or of his
representative, to ensure that the information and recommendations contained herein are
brought to the attention of the architect and engineer for the project and incorporated into the
plans, and the necessary steps are taken tq see that the contractor and subcontractors carry out
such recommendations in the field.
The fmdings of this report are valid as of the present date. However, changes in the
conditions of a property can occur with the passage of time, whether they be due to natural
processes or the works of man on this or adjacent properties. In addition, changes in
applicable or appropriate standards may occur, whether they result from legislation or the
broadening of knowledge. Accordingly, the fmdings of this report may be invalidated wholly
or partially by changes outside our control. Therefore, this report is subject to review and
should not be relied upon after a period of three years.
Project No. 06403-12-01 June 25, 2001
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{ COSMOS
: CT
SOURCE: 2001 THOMAS BROTHERS MAP
SAN DIEGO COUNTY, CALIFORNIA
REPROOUCeo 'MTH PeRMISSION GRANTED BY THOMAS BROTHERS MAPS, THIS MAP IS COPYRIGH1EO BY THOMAS BROS. MAPS. IT IS UNLA'M'U~ TO COPY
OR REPRODuce A~~ OR ANY PART THeREOF, lJIHeTHER FOR PERSONA~ USE OR ReSA~. 'MTHOUT PERMISSION
o GEOeON
INCORPORATED
GEOTECHNICAL CONSULTANTS
6960 FLANDERS DRIVE -SAN DIEGO, CALIFORNIA 92121-2974
PHONE 858 558-6900 -FAX 858 558-6159
AS I JMW DSKI EOOOD
XJ761
30
VICINITY MAP
/ /
¢;,,/ ~i ~!
t
l'l
NO SCALE
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
DATE 06 -25 -2001 PROJECT NO. 06403 -12 -03 FIG. 1
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APPROVED FILTER FABRIC
_ 6" DIA. PERFORATED
SUBDRAIN PIPE
1" MAX. OPEN-GRADED
AGGREGATE 9 CUBIC FT.lFT.
MINIMUM
2' MIN.
~-------5' MIN.--------311
NOTES;
1 ..... SUBDRAIN PIPE SHOULD BE 6-INCH MINIMUM DIAMETER, PERFORATED, THICK
WALLED SCHEDULE 40 PVC, SLOPED TO DRAIN AT 1 PERCENT MINIMUM AND
CONNECTED TO STORM DRAIN SYSTEM OR APPROVED OUTLET.
2 ..... WHERE DRAIN EXCEEDS 500 FEET, PIPE DIAMETER SHOULD BE INCREASED
TO 8 INCHES
3 ..... FILTER FABRIC TO BE MIRAFI 140N OR EQUIVALENT,
TYPICAL SUBDRAIN DETAIL
//1.
NO SCALE
GEDeON 0 VILLAGES OF LA I COSTA -THE GREENS INCORPORATED
GEOTECHNICAL CONSULTANTS CARLSBAD, CALIFORNIA
6960 FLANDERS DRIVE -SAN DIEGO, CALIFORNIA 92121.'2974
PHONE 858 558-6900 -FAX 858 558-6159
AS/JMW 1 1 DSK/EOOOO DATE 06-25-2001 1 PROJECT NO. 06403-12.03'1 FIG. 14'
XlR1411DRAFTINGlJIMWISD
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~ EXISTING GROUND SURFACE
SEE DETAIL ~~.(;~
DETAIL
NOTES:
1. ..... EXCAVATE BACKCUT AT 1:1 INCLINATION SUCH THAT THE KEY WIDTH AT FINISHED PAD GRADE
IS AS SPECIFIED BY THE SOIL ENGINEER
NO SCALE
2 ..••.• BASE OF BUTTRESS FILL TO BE 5 FEET (OR AS DETERMINED BY SOIL ENGINEER) BELOW ADJACENT PAD
GRADE SLOPING A MINIMUM 2% INTO SLOPE .
3 ..... BUTTRESS FILL TO BE COMPOSED OF PROPERLY COMPACTED GRANULAR SOIL WITH MINIMUM
SHEAR STRENGTH PARAMETERS OF 4> =250 , C=300psf
4 ...... WHERE SEEPAGE IS ENCOUNTERED IN BACKCUT, CHIMNEY DRAINS TO BE APPROVED PREFABRICATED
CHIMNEY DRAINS PANELS (MIRADRAIN, TENSAR, OR EQUIVALENT) SPACED APPROXIMATELY 30 FEET
CENTER TO CENTER. ADDITlONAL DRAINS WILL BE REQUIRED WHERE AREAS OF SEEPAGE ARE ENCOUNTERED.
S ...... FILTER MATERIAL TO BE 1-INCH, OPEN·GRADED CRUSHED ROCK ENCLOSED IN APPROVED FILTER FABRIC
(MIRAFI 140N OR EQUIVALENT). -
6 ...... COLLECTOR PIPE TO BE 4-INCH MINIMUM DIAMETER, PERFORATED, THICK·WALLED PVC SCHEDULE 40 OR
EQUIVALENT, AND SLOPED TO DRAIN AT 1 PERCENT MINIMUM TO APPROVED OUTLET.
TYPICAL BUTTRESS DETAIL
o GEDeON
INCORPORATED
GEOTECHNICAL CONSULT ANTS
6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121· 2974
PHONE 619558-6900-FAX 619 558-6159
AS/JMW REV I DFL
XlR1411 DRAFTING/JIMW/BUTFIL2
MARIANO
CARLSBAD, CALIFORNIA
DATE 0&-25-2001 PROJECT NO. 06195 -12 -03 FIG 15
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EXISTING GROUND SURFACE
IE--+i':".,--~WHERE PRACTICAL
(NOTE 7) FINISHED SLOPE
rNOTE 1
FINISHED LOT GRADE
~NOTE2
1~
SEE DETAIL
UNDISTURBED
FORMATIONAL
SOIL
1
MIN.
DETAIL
NOTES:
1... ... BASE OF STABILITY FILL TO BE 3 FEET INTO DENSE, FORMATIONAL SOILS SLOPING
A MINIMUM 5% INTO SLOPE
2 ...... APPROVED PREFABRICATED CHIMNEY DRAIN PANELS (MIRADRAIN, TENSAR,
OR EQUIVALENT) SPACED APPROXIMATELY 30 FEET CENTER TO CENTER
NO SCALE
3 ...... FILTER MATERIAL TO BE 3/4.INCH, OPEN·GRADED CRUSHED ROCK ENCLOSED IN APPROVED FILTER FABRIC
4 ...... COLLECTOR PIPE TO BE 4·INCH MINIMUM DIAMETER, PERFORATED, THICK·WALLED PVC SCEDULE 40 OR
EQUIVALENT, AND SLOPED TO DRAIN AT 1 PERCENT MINIMUM TO APPROVED OUTLET.
TYPICAL STABILITY FILL DETAIL
GEDeON o INCORPORATED
GEOTECHNICAL CONSULTANTS
6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121-2974
PHONE 858 558-6900 -FAX 858 558-6159
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
. JMW IJMW I. 1 DSK/GTYP1 DATE 06.25.20011PROJECT NO: 06403 -.12 -031 FIG 16
XlR1411DRAFTINGlJIMWSTABFILB
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PROJECT NO 06403-12-01
ASSUMED CONDITIONS:
Slope Height
Slope Inclination
Total Unit Weight ofSoi!
Angle of Internal Friction
Apparent Cohesion
No Seepage Forces
ANALYSIS:
?clj> = yHtan!Q Equation (3-3), Reference 1
C
FS = Nc&. Equation (3-2), Reference I
yH
?clj> = 15 Calculated Using Eq. (3-3)
Ncf = 47 Determm.ed Using Figure 10, Reference 2
FS = 1.8 Factor of Safety Calculated Using Eq. (3-2)
REFERENCES:
H = 100 feet
2:1 (Horizontal :Vertical)
Yt = 130 pounds per cubic foot
$ = 30 degrees
C = 500 pounds per square foot
..
(1) Janbu, N., Stability Analysis of Slopes with Dimensionless Parameters, Harvard Soil Mechanics,
Series No. 46, 1954.
(2) Janbu, N., Discussion of J. M. Bell, Dimensionless Parameters for Homogeneous Earth Slopes,
Journal of Soil Mechanics and Foundation Design, 1:'T0' SM6, November 1967"
CUT SLOPE STABILITY ANALYSIS
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD,CALIFO~
1
FIGURE 17
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PROJECT NO. 06403-12-03
ASSUMED CONDITIONS:
Slope Height
Slope Inclination
H = 50 feet
2:1 (Horizontal :VerticaI)
'Yt = 130 pounds per cubic foot
$ = 25 degrees
Total Unit Weight of Soil
Angle of Internal Friction
Apparent Cohesion C = 300 pounds per square foot
No Seepage Forces
ANALYSIS:
? c$ = YH tand>
..... C
FS = Nc&
?c$ =
Ncf =
FS =
yH
10
34
1.56
REFERENCES:
Equation (3-3), Reference 1
Equation (3-2), Reference 1
Calculated Using Eq. (3-3)
Determined Using Figure 10, Reference 2
Factor of Safety Calculated Using Eq. (3-2)
(1) Janbu, N., Stability Analysis of Slopes with Dimensionless Parameters, Harvard Soil Mechanics,
Series No. 46, 1954.
(2) Janbu, N., Discussion of J. M. Bell, Dimensionless Parameters for Homogeneous Earth Slopes,
Journal of Soil Mechanics and Foundation Design, l';l"o. SM6, November 1967.
FILL SLOPE STABILITY ANALYSIS
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
FIGURE 18
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PROJECT NO 06403-12-03
ASSUMED CONDITIONS:
Slope Height
Depth of Saturation
Slope Inclination
Slope Angle
Unit Weight of Water
Total Unit Weight of Soil
Angle of Internal Friction
Apparent Cohesion
Slope saturated to vertical depth Z below slope face.
Seepage forces parallel to slope face
ANALYSIS:
rtZsinicosi
REFERENCES:
H = Infinite
Z =3 feet
2: 1 (Horizontal: Vertical)
i = 26.5 degrees
'Yw = 62.4 pounds per cubic foot
"it = 130 pounds per cubic foot
$ = 25 degrees
C = 300 pounds per square foot
(1) Haefeli, R. The Stability a/Slopes Acted Upon by Parallel Seepage, Froc. Second International
Conference, SMFE, Rotterdam, 1948,1,57-62.
(2) Skempton, A. W., and F. A. Delory, Stability a/Natural Slopes in London Clay, Proc. Fourth
International Conference, SMFE, London, 1957,2,378-81.
SURFICIAL SLOPE STABILITY ANALYSIS
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
FIGURE 19
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APPENDIX A
FIELD INVESTIGATION
the latest phase of the field investigation was performed during the period of November 4 tbTough
~ecember 1, 1999, and consisted of the excavation of 19 large-diameter borings, 11 small-diatl:leter
borings, 17 "air-track" drill hol~s and 113 exploratory trenches .. The approximate locations of.borings
and trenches 'are shown on Figures 2 through 10.
The small-diameter borings were advanced to depths ranging from 26 to 51 feet below grade using an
Ingersdl Rand A-300 truck-mounted drill rig equipped with an 8-inch hollow-stem auger. Relatively
undisturbed samples were obtained by driving a 3-in.ch split tube sampler 12 inches into the
. undisturbed soil mass with a 140-pound hammer falling 30 inches. The sampler was equipped with
I-inch by 2s/s-inch brass sampler -rings to facilitate remeval and laboratory' testing. Standard
I .' Penetratien Tests (8PT) were also p~rformed at selected intervals. 8PT samples were .obtained by
driving a -2~inch split-tube sampler into the "undisturbed" seil mass with blews frem a 140-peund
hammer falling 30 inches.
The large-diameter berings were advanced to depths ranging frem 2S to 101 feet below existing
grade using an E-120 truck-mounted drill rig equipped with a 30-inch diameter bucket auger. Fer
sampling, a split-tube sampler was 'driven 12 inches into the "undisturbed" seil mass with the drill rig
Kelly bar. The sampler was equipped with l-inch-high by 23/s-inch diameter brass sampler rings to
facilitate removal and lab .oratory testing. Bulk samples were alse obtained.
An Ingersoll-Rand 500 pneumatic percussion, 4-inch-diameter drill with hydraulic pUlldewn was
used for air-track holes at selected lecatiens. A graphical representation .of each .of the air-track'
perings is presented en Figure A-169 through A-I85. The gr!:!-phs depict the rate (in secends per feot)
at which the drill penetrated each feot .of depth examined.
The backhee trenches were excaVated te depths 3.5 to 18 fee~ using a JD 555 trackliee-equipped with
a 24-inch-wide bucket. Disturbed bulk and chunk samples were .obtained at selected locations in the
trenches.
The soils encountered in the borings and backhee trenches were visually examined, classified, and
logged. Logs of the berings and backhoe trenches are presented en Figures A-I through A-168. The
logs depict the soil and geolegic conditions encountered and the depth at which samples were·
obtained.
Project No. 06403-12-03 Jl!D-e 25,2001
.... ----------------------------------~-~~--------
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DEPTH SAMPLE IN NO. FEET
I-0
I--
I-2 -
I--
I-4 -
I--. LB1-1
I-6 -LBI-2
I--
I-8 -
I--
-10 -
--
-12 -
- -
-14 -
--LBI-3
t-16 -
I--
I-18 -
I--
I-20' -
I--
I-22 -
I--
I-24 -
I--LBI-4
I-26 -LBl-5
I--
I-28 -
I--
06403-12-01
0::. >-UJ CD l-.0 <I: -I 3 SOIL
0 0 CLASS :r: z I-:::l (USCS) H 0 -I 0:: CD
V/ "f ,1"C " ,~" : ft' ':f " 'f' ,
':f: :'f , . .. 'T :'t' ·:f " 'f' ':f: :'f · . .,
f 'j' : 'i' ':f SM " 'f' ':f: :'f ' ., ::t:~::f · " 'f' : ':f: :'t :r~::~ " 'f' ':f: :'f · , ., 'T :'t' ':t · " 'f' ':f: :'t · , ., · ::t:j::f ,
" 'f' . 'r ,,~ . , . :. ,].: 'r "t
I ~~Il~ · ·
'r~:'t .-. --. ::t*:t · ::t:~::t it:
CH
BORING LB 1 zw ...... Ou • HZI-I-<I:LI..
ELEV. (MSL.) 240 DATE COMPLETED 11/4/99 <1: .... ' D:enen I-H::I
EQUIPMENT
LLJCJ)o
BUCKET AUGER zLtJ-l ~o::e
MATERIAL DESCRIPTION
\ FlLL
Loose, humid, dark brown, very Sandy CLAY I
SANTIAGO FORMATION I-
Medium dense, dry, dark yellowish-orange, Silty, fme l-
to coarse SANDSTONE, random, discontinuous,
caliche filled joints I-
-Fault: N55W, 54SW, .5" wide, caliche filled l--Possible "drag-structure", (bedding folded into 5/12"
fault-plane suggesting reverse movement) . I-
l-
l-
Bedding: NlOE, 15E; siltstone 2" thick, abundant
caliche . . . I-
-Undulatory contact I-
Stiff, dry, pale olive SILTSTONE interbed,
approximately 3' thick I-
:-
e..
-Pinkish-gray below 13 feet
:-
--Bedding: N40W .. 21NE (cross bedding?), lenticular 6/12"
bed less than l' thick -
-
-
l-
-Bedding: N70E, 14SE; well defmed sandstone beds I-, . -
l ___ a.pE.r~~IE~elY_ 2~' .!hlc.!c ______________________ / l-
Hard, moist, pale olive eLA YSTONE, I-bentonitic/" soapy" texture, random, discontinuous,
wavy, stained, closed fracture~, massive 1-.
l-
1-4/12"
I-
l-
l-
I-
Figure A-I,. Log of Boring LB 1
>-1-....... H. en ' zu.
UJ' O~ >-Q.. 0:: ......
0
124.8
-
112.2
" UJ~ 0::"
':::ll-I-Z enlJJ ~I-1:5 u
10.8·
20.2
l.CG
I SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• D rSTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPl.E (UNDISTURBED)
I
IiiJ ••• CHUNK SAMPLE :r: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPl.IES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED.·IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER l.OCATIONS AND TIMES.
'I.-
I
I:
I
I.
I
I
I
I
I·
I
I
'1'
.1
I
I
I
I
·1
DEPTH
IN
FEET
30
32
34
36
38
40
42
44
46
48
"50
52
54
56
58
SAMPLE
NO.
LBl-6
LBl-7
1-9
SOIL
CH
BORING LB 1
ELEV. (MSL.) 240 DATE COMPLETED 11/4/99
EQUIPMENT BUCKET AUGER
MATERIAL DESCRIPTION
Hard, moist to very mo~st, pale olive, CLAYSTONE, .
massive, scattered, random, stained, discontinuous
joints, bentonitic
Bedding: N55W, 23NE; polished, undulatory, stained
texture, yellowish-orange
-Blocky, slickensided surfaces, random, stained joints
-Bedding: N73E, 35SE; slickensided, polished plane,
slickensides parallel to dip
-Very slight seep on north side of hole
ZLLI'" >-,....
°u • 1-", Ul~ HZI-H • 0::'"" 1-<r:1.J... C/)I.J... :::ll-<r:1-' Z. O::C/)C/) LLlu I-z I-H::I c. CJ)LU HI-LlJC/)o 0:. Oz zLIJ...l >-"" LlJo::CQ 0:: 4.0 a.. v C u
10/12" 120.7 14.6
~~I'I-~--l-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----+-----1---
Hard, damp, pale olive SILTSTONE, massive
ML . 12/10" 124.7 ·12.1
-Bedding: N70W, 20NE, contact with sandstone
-Lenticular sandstone
-Bedding: N40W, 16SW, lower contact
~';'»;I!-+---l-- - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - --1-----+----;----
Hard, moist, pale olive to light olive-gray, plastic
CLAYSTONE, massive, abundant, random,
discontinuous, polished, slickensided surfaces,
bentonitic/"soapy" texture
15/10" 117.7 17.5
Figure A-2, Log of Boring LB I, Lr..G
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER T~BLE OR SEEPAGE
NOTE: THE. LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC'BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPR;SENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
.---------~--------------------------
I
I PROJECT NO. 06403-12-01
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I-
I
I
DEPTH
IN
FEET
60
62
64
66
68
70
72
74
76
78
80
82
84
86
SAMPLE
NO.
1-10
1-11
>-(!)
° -l o ::c ~ ~
SOIL
8M
BORING LB 1
ELEV. (MSL.) 240 DATE_COMPLETED
EQUIPMENT BUCKET AUGER
MATERIAL DESCRIPTION
-Becomes grayish-green CLAYSTONE, massive
-Undulatory contact, genel.:'ally horizontal
-Becomes light gray, fine, Silty SANDSTONE
ZUJ""' >-~ °u . ~'"' UJ~ HZ~ H • e:::"" ~<t1J.. cnlJ.. :::JI-11/4/99 <l:1-" z. O::cn(J) Wu l-z ~H:3: C. cnl.J.J HI-WcnO >-a.. Oz zUJ-l 1fe:::9 e:::'"' 1:0 c u
20/10" 118.0 15.7
IH-ff.'::t-t---I' - - - - - - - - - - - - - - - - - - - - - - - - - - -... - - - - - - - - --\----1----\----
88 Hard, moist to wet, light olive-gray,
SILTSTONE/CLA YSTONE
Figure A-3, Log of Boring LB 1 LCG
, SAMPLE SYMBOLS D .. : SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS No"T WARRANTED_ TO BE _REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECT NO 06403-12-01
I
I
I
I
I
I
I
I
I
I
I
I
I
I
0:: BORING LB 1 >-IJJ zIJJ ...... >-'"' (..!) I-0 <t °u . ~""' UJ:-':
DEPTH .....I :::I SOIL HZ/-. e:::'"' SAMPLE 1-<tU-Ctl' •
IN 0 Cl CLASS zLL. ::ll-
NO. :::r: z ELEV. (MSL.) 240 DATE COMPLETED 11/4/99 <1:1-' IJJ' I-z FEET I-~ '(USCS) ~Ctl~ Cl~ C/)UJ H IJJHO HI-.....I e::: EQUIPMENT BUCKET AUGER ZCtl.....l >-~ Oz (..!) IJJIJJ aJ 0::'" :S::O 0..0:: ...... Cl U
" MATERIAL DESCRIPTION
f'-90
r -Joints: N20E, SSW, NSSE, 40NW; discontinuous, -
~ undulatory
f-92 --Slight seepage at 92 feet -
f---
94 -IMLlCL
l-
f-.:-l-
I-96 --Gradational lower contact I-, -------------------------------------, ---.-Hard SILTSTONE layer I-, ML -98 --Gradationallbioturbated contact l-
I
, -------------------------------------, -
:--Very hard, moist light olive gray, CLAYSTONE I-
CL
f-100 --End visual log at 100 feet I-
-
"
BORING TERMINATED AT 101 FEET
, ,
-
"
Figure A-4, Log of Boring LB 1 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
10 ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ::!:: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC'BORING OR TRENCH LOCATION AND AT THE
, DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSUR'FACE CONDITIONS AT OTHER LOCATIONS AND TIMES,.
! ,
I
I
I
I
I
I
I
I
I
I
I
PROJECT NO.
DEPTH
IN
FEET
,... 0
:... -
:-2 -
--
r-4 -
r--
r-6 -
r--
r-8 -
-
I-10 -
--
-12 -
--
-14 -
--
SAMPLE.
NO.
LB2-1
r 16 -LB2-2
06403-12-01
I
SOIL
CLASS
(USCS)
CL
CL
CL
BORING LB 2
ELEV. (MSL.) ----.;2..;.;;.;1..;...0 __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 3011
MATERIAL DESCRIPTION
COLLUVIUM
Stiff, moist, dark gray-brown, Sandy CLAY
-Porous, with shrink crack 1/4"-1" wide
-Very irregular, transitional contact
SANTIAGO FORMATION
Very stiff, moist, light olive, Silty CLAYSTONE
-Very weathered and fractured
-Becomes harder
-Becomes hard to very hard, moist, light olive, Silty
CLAYSTONE
11/18/99
-
-
-
r-
r-
I-
I-
I-
-8/11 " 127.2 21.0· -
. -4--,.j---~WY!~.-+---l----------------. . .... I r 18 -~~
..::: •• .... I····· . -
I-
I-r -~ I .. e20-~
I--~ t-
I-
I
I.
I
-22 -r:fl::~t:~::~::t~:-!---·h. __ -!I.9JizEI!t~E~d~i~&.~o!!~C! ___________________ ,-I------l---t---i
r--1::~~J::r; Dense to very dense, damp, light reddish-brown, very I-I::~:':-C~ Silty, coarse, SANDSTONE, 'with trace clay, massive
I-24 -LB2-3 ,:: SM
- -i~~ LB2-4 1-:
-26 -!~~t:l::
IiW i~~tJ :~~~~::t:
--
r 28 -
r -
Figure A-5, Log of Boring LB Z
I-8/11 " 121.0
I-
I-
-
7.1
LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENET.RATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ~ •• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS .AND TIMES.
I' . .... . :
I
I
I
I
I
I
I-
I
I
I
I
I
I
I
I
DEPTH
IN
FEET
30
32
34
36
38
40
42
44
46
SAMPLE
NO.
SOIL
CL
BORING LB 2
ELEV. (MSL.) ---,2=1:..;...O __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
-.Lll', • .lll>," depositional contact (N50E, 20S), with fme
at 30 feet
Hard, moist, olive, Silty CLAYSTONE; fractured,
massive
-Fracture; discontinuous, hairline at N-S, 70E, with
jarosite lining and some gypsum, and normal
slickenside-striations
,.Minor secondary fault
:
-Becomes harder, less fractured, with scattered
grit-size sand
11/18/99
8
48 LB2-6 20/10" 127.5 12.1
LB2-7
50
52
54
BORING TERMINATED AT 54 FEET
Figure A~6, Log of Boring LB 2 LCG
SAMPLE SYMBOLS o .... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST" ••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC· BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND ·TIMES.
I
I'
I
I
I
" I
I
,I
I
I
I
I
DEPTH
IN
FEET
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
SAMPLE
NO.
LB3-1
SOIL
CLASS
(USCS)
CL
SM
-CL
BORING LB 3
ELEV. (MSL.) 235 DATE COMPLETED 11118/99
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOn..
dark CLAY
SANTIAGO FORMATION
Dense, damp, light brown to tan, Silty, fine
SANDSTONE, with trace clay
-6" claystone layer; horizontal
-Irregular, near-horizontal, depositional contact, (with \ ___ (mE Br~~e!.. E~~s~ ~~d2 ___ . __________________ .'
Very stiff to hard, moist, light olive, Silty
CLAYSTONE
-Very fractured, weathered
-Bedding plane shear, horizontal, -1/4-112" thick,
with gypsum liner, throughgoing, plastic, wet
-Bedding plane shear, very irregular, 1/4"-1/2" thick
with gypsum, approximately southward dip,
tllroughgoing, plastic, wet, with some sand
-Becomes less weathered and fractured
-Remolded clay seam, N60W, 30NE; 1116"-1/8" thick,
throughgoing, plastic and wet; approximately 4"-6"
thick zone of very fractured wallrock on either side
-Ioint/fault (7), N30W, 30NE; 1/2"-1" thick,
throughgoing, with wet, plastic and jarosite/gypsum
zw ...... >-. "-°u . -I--lJJ~ HZI-H"" 0:'-'-I-<J:LL (J) •
~I-~ ZLL ::ll-w' I-z -I-~:t c~ ~UJ w(J)o >-c-01-.. zLU...J 46 ~o:e ~'"' c u
2 116.1 17.4
6
Figure A-7, Log of Boring LB 3 LCG
SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENErRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE iJ , .. CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. -
I·
I.,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
PROJECT NO. 06403-12-01
If
BORING LB 3 >-§w~ >-'" t!)
0 i-~t 1-..... 'Ul~ DEPTH ...J SOIL H. 0::'"'
IN SAMPLE '0' CLASS ~<I:, (J)l.L. ::;)1-
. NO. :x:. ELEV. (MSL.) 235 . DATE COMPLETED 11118/99 i til (J)
z. I-z I-UlU FEET H I~ (USCS) ~~6 o . (/)ll.J HI-...J EQUIPMENT ROTARY BUCKET 30" >-0.. Oz i ~e 0::'"" I:o
0 .u
MATERIAL DESCRIPTION
I-30 LB3-6
II
linings (orange to brown) 6 108.0 21.9
r--Hard, moist, olive to brown, Silty CLAYSTONE 1-
LB3-7 CL -Fractured, massive r-32 -1-
I--f0-
r-34 -, -Near-horizontal contact '::[:::: SM -------------------------------------,
Dense, damp, light brown to orange, Silty, fme r-\ SANDSTONE I
BORING TERMINATED AT 35 FEET
1
-
..
Figure A-S, Log of Boring LB 3 LeG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ • •• DISTURBED OR BAG. SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH 'LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE'CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I
1
I
I
I
I
I
I
I:
I
I
I· -.' .. -,.
I
I.
I
I
I
I
PROJECT NO 06403-12-01
If BORING LB 4 >-ZUJ" >-'" (!)
DEPTH 0 °u . 1-", UJ~ ...J SOIL HZI-H • 0::'-' SAMPLE 0 CLASS 1-<t:Ll. cnlJ.. ;:)1-IN NO~ :r: ELEV. (MSL.) 145 DATE COMPLETED 11/19/99 <1:1-" z. I-z 1-. Q:!cncn UJ u FEET H .~ (USCS) I-H 3 c . (J)lLI HI-...J UJcnO 0... Oz EQUIPMENT ROTARY BUCKET 30" zUJ...J & ..... LLlo::!D .1:0 c.. v C u
MATERIAL DESCRIPTION
i-0 0 ~ -CL COLLUVIUM -X Stiff, humid, dark gray-brown, Sandy CLAY -2 --
--~~1 TERRACE DEPOSIT -
'-4 -f.~ Medium dense to dense, damp, light brown-olive,. 1-'
Wa with reddish-brown mottling, Clayey, fine SAND --r-LB4-1 I~i~ SC 4 124.4 8.9 -6 -I-
----------------------------------------/ V -8 -~~~ Very stiff to medium dense, damp, light brown-olive, r-
~~~ very Silty CLAY to Clayey SILT, with some sand, .
- -//V ~L/ML with white mottling of calcium sulfate (gypsum) r-
-10 -~~ r-
--~X r-
VV!/ -12 -~~ -Becomes more sandy r-
- -~~ ___ -.!r!egul~ E«:Mi!!-lt ~o~t~C!; _N.7Q~, 1~~ __ ~ .:. _ . ________ ~ -
-14 -ol-'"1-Dense, damp, light brown-tan, Silty, fme SAND -
--LB4-2
l"1 -.
:-1 t· [. SM 8l10" 122.1 9_8 -16 -LB4-3 -2" thick, horizontal grit-size sand layer (angular -
-1· '"1---"1"-1 "I volcanic grit) .. -
r-18 -. t[" -
r--'1· /1" -Near-horizontal transitional contact -
20 -Ii . :. ------------------------------------_. l-Very dense, damp, reddish-brown, Gravelly, medium i--'. 0" :;M-GM
I--" to coarse SAND, with angular, fine volcanic . I-·~":.IJ GRAVEL r-22 -. --Irregular deposition contact, near-horizontal; burrows ~~~ \ Ir-i--into unit below
~~ SANTIAGO FORMATION"
~ 24 -Very stiff to hard, moist, olive, Silty CLAYSTONE i-
i---Very fractured, with discontinuous clay seam, "-calcium sulfate (gypsum) linings on fractures ,... 26 -LB4-4 -CL . 5 120.l· 14.5 - --
-28 --Becomes less fractured -
---BORING TERMINATED AT 30 FEET
Figure A-9, Log of Boring LB 4. LeG
SAMPLE SYMBOLS o ., _ SAMPLING UNSUCCESSFUL
!llll ••• 0 I STURBED OR· BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
i:J •.• CHUNK SAMPLE ~ ••• WATER' TABLE OR SEEPAGE
~OTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE.SPECIFIC BORING OR TRENCH ·LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I
I
I
I
I
I
I
I
I
I
I
I
'I
I
I
I
I
I
PROJECT NO
DEPTH
IN
FEET '
SAMPLE
NO.
06403-12-01
0:: >-LlJ (.!) I-o <I: '...J'" ::I o 0 ::t: z I-::l H a ...J 0:: CD
SOIL
ClASS
(USCS)
BORING LB 5
ELEV. (MSL.) ___ 1=6,:;..5 __ DATE 'COMPLETED 11/19/99
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
I-O,~--rl~:.l'.l~'"1-~~-+----------------------------------------+--------~-+-----~
·.l .. t "' SM TOPSOll.. I--
I-2 -
I--
I-4 -
I--
r 6 -
I--
I-8 -
I--
I-10 -LB5-1
-LB5-2
-12 -
--
-14 -
--
-16 -
I--
r 18 -
I--
r 20 -LBS-3
I--
I-22 -
I--
I-24 -
I--
,... 26 -
.r t Loose, dry, dark gray, Silty, flne SAND
-Porous
SM
ML .. : ....
SANTIAGO FORMATION
Dense, humid, light tan, Silty, fme SANDSTONE
-Becomes medium to coarse-grained
-Cross-bedding inclined 15-20 degrees northward
-Horizontal bedding
Dense, damp, light reddish-brown, Silty, coarse
SANDSTONE
-Becomes gravelly and very moist
I
-
I-
I-
I-
I-
I-
'""8/11"
r
-
-
-
-
-
I-
I-
I-8/10"
I-
I-
-
-
-
125.8 11.9
--\.J+.,I,I,bI;L,Il--+----+, -Interfmgering, transitional contact; approximately -1----+---1---~ L CL '. --~"E;i:":~t: ciarl.:-oli~: Sll,yCiAYSTONE ----------: f-10 117.2 .16.7 LB5-4
-28 -LB5-5
--~ -Very fractured, wi~ discontinuous clay seams I-
Figure A-lO, Log of Boring LB 5 LeG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ,I] ... STANDARD PENETRATION TEST •••• PRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE, OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE,
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCAT!ONS AND TIMES.
I
I PROJECT NO
~
06403-12-01
I~
I
I
I
I
I.
'I
I
I
BORING LB 5 >-UJ ZLLJ"" >-'"' t!) I-0 <J: °u . 1-,.., UJ~
DEPTH ...J 3 SOIL HZI-H. ~v
IN SAMPLE 0 0 CLASS I-<J: LL. (1)LL . ~I-
NO. ::r: Z ELEV. (MSL.)· 165 DATE COMPLETED 11119199' <I: 1-' Z .' I-::l (USCS) ~CI)CI) LLJ u en Z FEET H 0 I-H3 0. HUJ
...J ~ EQUIPMENT ROTARY BUCKET 30"
wCl)o >-0.. 01-
t!) zUJ...l :E:~ ~~S ~'-'
0 u
MATERIAL DESCRIPTION
:-30
---Scattered sub angular volcanic clasts i-
"'" 32 -i-
CL
:--i-
I-34 -r
I-
BORING TERMINATED AT 35 FEET
I
\
..
-
-
Figure A-II, Log of Boring LB 5 LeG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE IiiJ ••• CHUNK SAMP.LE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR, TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESE~TATIVE OF SUBSURFACE CONDITIONS AT OT-HER LOCA~IONS AND TIMES.
I'
I
I·
,·1:
·1
I
I
I
I
I
I:
I
I.
I·
I:
I':
I.
I
I
PROJECT NO
DEPTH
IN
FEET
I-0
I-' ., -
I-2 -
I--
I-4 -
-
I-6 -
I--
1-' 8 -
I--
SAMPLE
NO.
LB6-1
I-10 -LB6-2
I--
I-12 -
I--
I-14 -
I--
I-16 -
I--LB6-3
I-18 -LB6-4
I--
I-20 -
I--
I-22 -
I--
I-24 -
I--
I-26 -
I--LB6-5
I-28 -LB6-6
I--
06403'-12-01
0:: >-UJ t.!) ~ o <I: -l :3: o c :z: z ~ ~ H 0 -l 0:: t.!)
'.'
SOIL
CLASS
(USCS)
SC
ML
BORING LB 6
ELEV. (MSL.)----'2=6=O __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOIL
Loose, dry, dark gray-brown, very Clayey, Gravelly
SAND, with angular volcanic clasts
SANTIAGO FORMATION
Medium dense, damp, light brown, Clayey, Sandy
SILTSTONE
-Highly weathered
-Horizontal beds
I
I-
F-,
~'.JF'fJ:!'!il--I-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----I~-__+---1 "~' "r
120.0 I ~:t:j:~~ SM
Dense, damp, reddish-brown, Silty, medium I-6
SANDSTONE, with some clay 12.1
I-::~*:t ::·:i:: . ~~il--I-----t - - - - - - - - - - ----- - - - - - - - - --- - - --- - - - - - --1-----1---+---
Very stiff, moist, light olive, Clayey SILTSTONE
I-
ML
I-
f..1..l.l.;!-1<I..II!--I-----+, -Gypsum -1----'---1---+---
:1· i l SM '. - --!l~riZ:9l!t~ E~n~a:t -- - - - - - - - - - - - --- - - - - - - - -/ ~ 5/9" 'r, 'f Dense, damp, reddish-brown, Silty, fine SAND, with
','j t'l' some clay 1 -12 n cemented fossiliferous layer
,:lj:,r:!' -Bedding plane shear at 19.5 feet, 1/8"-114" thick,
r horizontal, discontinuous -
'j (" : '1 :1· l
"1".i 'f
:"l r,' :J.l
"j",i 'I
:'1 rt,
:1, l
"1".1 'I
:'1 t't' '" :1,
-Clay seam (not remolded) N-S, 5Wapproximately
1-2" thick, very moist, bentonitic?
-Becomes light olive to brown
I-
I-
I-
I-
I-
I-
11 122.1 13.1
I-
Figure A .. 12, Log of Boring LB 6 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ .~. STANDARD PENETRATION TEST II'.~. DRIVE SAMPLE (UNDISTURBEP)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BOR1NG OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
cc BORING LB 6 >-LLI ZLLI" >-'" (.!) I-°u . 1--LLI~ 0 <I: H'"' DEPTH ...l ::I SOIL Hzl-CJl • cc"'"
IN SAMPLE 0 c CLASS ~<I:~ zu. :::ll-NO. ::I: z ELEV. (MSL.) 260 DATE COMPLETED 11/19/99 a::I-CJl LLI • , I-z FEET I-:::l (USCS) I-CJl::I C U (J)I.U H 0 UJHo . HI-...l cc EQUIPMENT ROTARY BUCKET 30" ' zffi...l >-0-Oz (.!) LLlccCO cc'"' !:o
0.. '"' C (,,)
MATERIAL DESCRIPTION , 30 J"l ---------------------------------------
t-32 -Dense, moist, light olive, Clayey SILTSTONE :-ML
t--t-
~ 34 ---------------------------------------I ~ --Hard, moist, olive to gray, Sandy CLAYSTONE, with I-LB6-7 CL some silt '20
~ 36 -I-LB6-8 '
::f '~'r --------------------------------------t--.~., Dense, moist, light olive-brown, very Silty, fine t-
::t · .:~ I
t-38 -· . SANDSTONE to Sandy SILTSTONE l-. .~.:. ~M-ML ,-
::C .. t '-'-::t *=f' r · . ~ 40 -. ~.:. :-::t :~~:t ,..
BORING TERMINATED AT 41 FEET
-
Figure A-13, Log of'Boring LB 6 LeG,
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE, ~ •• ,. WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES'.
------------------------------~~--~---~~
I
I. PROJECT NO. 06403-12-01
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DEPTH
IN
FEET
o
2
4
6
8
SAMPI.E
NO.
LB7-1
SOIl.
SM
BORING LB 7
ELEV. (MSL.) ---.:2=2;.:;.,0 __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOll..
Stiff dark CLAY
SANTIAGO FORMATION
Dense, damp, light reddish-brown, Silty
SANDSTONE, with some clay, weathered
-Becomes dark red-brown
~1' thick clay seam (not remolded), N~S, 5W
11/22/99
4 117.8 7.6
~~t-t----+-. __ -~~<1!-E-~ri~~n!a! «!el?~s~i~I!:"~o!!t~C! _______________ .-1----1---+---1
10.
12
14
16
18
20
-2
LB7-3
Hard, moist, light olive, very Silty CLAYSTONE to
Clayey SILTSTONE
-Becomes sandy
-Joint, fracture, with 114" thick clay seam, N30E,
30NW
-Discontinuous clay seams, E-W, 30S (very fractured
3
~~+-+-__ +_. __ c1ax~~n~ ~~t1!. s~d2 _______________________ .+ ___ -+-__ +-_--1
22
24
26
28
LB7-4
LB7-5
Hard, moist, medium olive-gray, Silty CLAYSTONE,
with discGntinuous slickensided fractures, typically
random and steep '. ~
CL
Figure A-14, Log of Boring LB 7
6 115.3 15.7
LCG
SAMPLE SYMBOLS o . '.' SAMPl.ING UNSUCCESSFUl.
I§§ ••• DISTURBED OR BAG SAMPI.E
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPI.E (UNDISTURBED)
~ ••• CHUNK SAMPLE . :!l ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECT NO. 06403-12-01
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DEPTH
IN
FEET
30
32
34
36
38
40
42
44
46
48
50'
52
54
56
58
SAMPLE
NO.
LB7-6
LB7-7
LB7-8
-9
SOIL
CLASS
(USCS)
BORING LB 7
ELEV. (MSL.) _2=2:.;:..0 __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 3011
MATERIAL DESCRIPTION
11/22/99
>-~""' H. (flu. Z. LllU O.
>-0-0::'-'
'Cl
~~~~---+--------------------------------------~---+----~-----ML
SM
CL
Dense, damp, light olive, Sandy' SILTSTONE, trace
clay
-Contact N80E, lOS -------------------------------------, Dense, damp, light tan, Silty, fme SANDSTONE
-Becomes reddish-brown (layers)
-Bedding plane shear, N70E, 5S; 1/8"-1 n
\ __ tgrE~gE-~oin~,_ slic:..k.::n~~t:.d.1.. ~~ _________________ .'
Hard, moist, light olive-brown, Sandy CLAYSTONE
15
9 114.6 18.6
~~~~--~--------------------------------------~----4-----~---
SM
Dense, damp, light brown-tan, very Silty, fine
SANDSTONE, massive
-6" cemented layer; lenticular
~*",;r.-+----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --~----+---+--
Hard, moist, olive, Silty, Sandy CLA YSTO;NE
CL 40/9" 121.3 14.2
Figure A-IS, Log of Boring, LB 7 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ' •••• DRIVE SAMPlE (UNDISTURBED).
iJ .•. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT· OTHER LOCATIONS AND TIMES;
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PROJECT NO 06403-12-01
0:: BORING LB 7 )-LiJ zw ...... >-'" (!) I-°u' 1-...... LiJ~ 0 <I: DEPTH .J 3 SOIL HZI-H, 0:::'"'
IN SAMPLE 0 a CLASS I-<I:u. enU. ::JI-:x: z ELEV. (MSL.) 220 DATE COMPLETED 11/22199' <I: I-'\. . Z NO. Q::enen LiJ' I-Z FEET . I-::J (USCS) aU enUJ H 0 I-H 3 ,. HI-.J 0:: ROTARY BUCKET 30" wen o >-0-Oz EQUIPMENT zLiJ...l (!) g:o::S 0:: ...... 1:0 a u
MATERIAL DESCRIPTION
-60 W37-13 m f-
BORING TERMINATED AT 61 FEET
-
' ..
,
~ ,
..
. -
-
.'
. ,
, Figure A-16, Log of Boring LB 7
. SAMPLE SYMBOLS [J .•. SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
LCG
IJ .... STANDARD PENETRATION TEST" ••• ·DRIVE SAMPLE (UNDISTURBED)
iJ .. '. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO
'. DEPTH SAMPLE IN NO. FEET
,.. 0
--
-2 -
t-.;.
t-4 -
t--
t-6 -
t--
t-8 -
I--
t-10 -
t--
12 -
--
-14 -
--
-16 -
--
,.. 18 -
t--
r 20 -
t--
i-22 -
:--
,.. 24 -
--
-26 -
,...
06403-12-01
~ BORING LB 8 >-LU ZUJ~ >-t!) I-" 0 (I: °u . 1-"" UJ~
...J ::I SOIL HZI-H. ~v
0 0 CLASS 1-(l:lL. ~lL. =:ll-:J: z ELEV. (MSL.) 180 DATE COMPLETED 11/22/99 <1:1-' lLI' I-Z I-=:l (USCS) ~C/)C/) O~ C/)LrJ H 0 I-H::I HI-...J ~ EQUIPMENT
UJC/)o >-0.. . Oz (!) ROTARY BUCKET 30" zUJ...J ~v :E:o ~.~e o. .t)
MATERIAL DESCRIPTION
~;:} SC-CL LANDSLIDE DEBRIS "t// Stiff, humid, dark brown, very Clayey SAND
1-<4-';.....,..=1--1----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----+---+---! :1-'Il
11.[
:1 .r·I_
. :-1-i:i·
"1".1.[
:'i r I'
SM
Medium dense, damp, light brown, Silty, fine to
medium SAND, with some clay -
I-
.1-
:l·ll ~'}-"!"-I--l----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1----+---+---1 ~/.}
It/> ~/-:-: /./-v:(~ v./;: !:{/.,,-
SC
Medium dense, moist, olive-brown, Clayey, fme
SAND
I-
tj'/0 ~":"':'.J-..,.+-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --f-----l----I----l .~ ~ CL
GC
Medium dense, moist, light olive to red-brown, Sandy
CLA Y, with scattered, subrounded to angular volcanic
gravel, (brecciated Santiago fonnation claystone)
-
-
-
I-
I-\ -Remolded clay seam-contact at 19.2 feet at N70E, i
\ 12S, 114-112", wet, plastic and throughgoing I I-_____________________________________ t
Medium dense, moist to very moist, reddish-brown,
very Clayey, coarse GRA VEL, with angular to
subrounded volcanic clasts; disturbed, non-imbricated
texture (debris-flow?)
-Strong seepage at 25 feet
SANTIAGO PEAK VOLCANICS
Very weathered, fractured, light olive to
reddish-brown, weak VOLCANIC ROCK, with
oversize floater boulders
BORING TERMINATED AT 27 FEET
. REFUSAL
I-
-
-
I-
I
Figure A-17, Log of Boring LB 8 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •• : •. DRIVE SAMPLE (UNDISTURBED')
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
~ BORING LB 9 >-LU ZLU ..... >-1"\ ~ I-0 <I: °u . -j:j ..... LU:-:
DEPTH -l :3: SOIL HZI-~v SAMPLE I-<I:IJ.. en"
IN 0 Cl CLASS Z1.l..-i=1-::I: Z ELEV. (MSL.) -140 DATE COMPLETED 11/23/99 <I: I-" NO. et:enen LU' -en 2 I-::::l Cl~ FEET H a (USCS) I-H:3: HLIJ
-l ~ EQUIPMENT ROTARY BUCKET 30"
UlCJ)O >-0.. 01-
~ ZUl-l ~'"' :1::2 ~et:e-0 Cl u
MATERIAL DESCRIPTION
0 1~·/; -7/ FU.L -
lI.;(f Loose, dry to humid, medium olive-brown, very -2 -~/t Gravelly, Clayey SAND -
-7{; .. -Scattered 12" boulders, weeds -v:r./
~ 4 -LB9-1 v.q;~ SC-CL
I-117.7 1 12.9 (/./ .
~ -r
LB9-2 t:l0 ~ 6 -!0 I-
r -I~/-'( -
i-8 -yi/. ...
i--V~~ ,..-v::/.---------------------------------------~ i-10 -Loose, moist, reddish-brown, very Gravelly CLAY
...
r -~ ---GC
i-12 -~ -
i---~~ / --------------------------------------
14 -/v Soft, moist, light to medium olive, Silty CLAY ~ :IV' / -
LB9-3 ~~ /v CL -Strong organic odor PUSH 115.1 16.8
r--jV -
LB94 ~~ /v --
i-16 -j~ /v -/v
r--/V' /~ -
r 18 -~~ 1/ l-Vy
i--~~ Vy l-V
i-20 -~~ Vy r-Vy ~~ Vy
r--~ l-
I-22 -~~ ~ -
i--~~ V --------------------------------------
r-24 -~ Soft, moist, dark brown-olive, Gravelly, Sandy CLAY -CL-SC -Very strong organic odor
r -~ -
-26 ----------------------------------------;y~/; --Loose, dry to humid, light reddish-brown, very -7./ I-28 -//( Gravelly, Clayey SAND, with rock> 10" -
7j.f! GC-SC ---Yi·
Figure A-1S, Log of Boring LB 9 LCG
IJ ... SJANDARD PENETRATION TEST •••• DRIVE SAMPLE CUNDISTl,JRBED)-SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
§§ ••• DISTURBED OR BAG SAMPLE iJ . .. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE = -
NOTE: THE LOG OF. SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: BORING LB 9 >-IJJ 'z LLI--->-'" t!) I-°u " ~~ LLI~ DEPTH 0 <I: ...J :3: SOIL Hzl-0:: .....
iN SAMPLE 0 0 CLASS 1-<I:Ll. zu. ::lI-Z Z ELEV. (MSL.) 140 DATE COMPLETED 11123/99 <1:1-' NO. O::cncn LLI" I-z FEET I-::l (USCS) o~ cnUJ H 0 I-H:3: ~I-...J 0:: UlcnO >-0.. t!) EQUIPMENT ROTARY BUCKET 3011 zLIJ...J 0::"'" l:z ~0::9 0 0 u
MATERIAL DESCRIPTION
I-30 , !/cr" Loose, dry to humid, light reddish-brown, very ~~% I--7/ Gravelly, Clayey SAND r-
I-32 -l/.("{ I-V?~1 GC-SC ... -;.-:; .. l-
I-34 -W% r-
I--:;1
I-36 -I·· SANTIAGO FORMATION I-
LB9-4 SC Hard, moist, light olive to gray, Sandy CLAYSTONE, 7 --massive -,
I-38 --
i --LB9-5 12 110.1 19.8
'-40 --
LB9-6
i
BORING TERMINATED AT 41 FEET
.Figure A-19, Log of Boring LB 9 LeG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED).
~ ••• CHUNK SAMPLE ~ •• ~ WATER TABLE OR SEEPAGE. = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON' APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: BORING LBI0 >-lJJ Zw""' >-"-(!) I-°u ' ~'"'; w~ 0 <I: DEPTH -l :::I SOIL Hzl-c::'""
IN SAMPLE 0 0 CLASS I-<J:IJ.. zlJ.. :=)1-
NO, ::I: z ELEV. (MSL.) 290 DATE COMPLETED 11/23/99 <J:I-' lJJ • 1-2
FEET .1-:=) (USCS) C::CJ)CJ) o~ CJ)LIJ
H 0 I-H 3 HI--l 0:: EQUIPMENT
wCJ)o >-0.. O 2 t!) ROTARY BUCKET 30" Zw-l 0::"" ~o ~c::e 0· u
MATERIAL DESCRIPTION
-30 "f .1,'t -Clay seam 1/8' thick, horizontal; not remolded : ... ~.: . --r' f -:: :{ .
-32 -• f 't r-, , . : .... ~.: : r' f r--:: :~::C. Dense, moist, light reddish-brown, Silty, fine' r-
'f r r-34 -' , , SANDSTONE, massive ... ~ ... I-
r--I=*{f: f-.
,...B10-6 ::f:l::t SM -Joint; N30E, 65SE, with black, manganese oxide 14/8" .
r-36 -'t ''( coating f-
:: :{. r--'t 't f-, , , , ::t:j\ r-38 -, , , f-
r--::f:i::t: f-·t
r-'40 -:·t· .:( " 'f' I-
·:f= :'f . r' i--::f: ::f r
r-42 -::f:~t f-.' 'f' r--::~: ::f I-
:-44 -::f:i::t' ~
:--\*=t' -Becomes light brown to tan, Silty, very fine
-14/9" " 'f' , LJBlO-7 l:l SANDSTONE
-46 ~ '-
LJBIO-S ::t*:( r--" 'f' -':f: :'t" r-48 -::t*=t I-
" 'f' f--':f: :'t -Becomes light olive-brown I-
r-50 -
""BIO-9 ~ ::t*=t -I-
r--::t:~::t I-: ... j.:
BORING TERMINATED AT 51.5 FEET
Fi~e A-21, Log of'Boring LB 10 LCG .
SAMPLE SYMBOLS o , .. SAMPLING UNSUCCESSFUL
~ •• : DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT. THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: BORING LB 10 >-UJ ZUJ""' >-1'\ t!) l-Ou • 1-.--UJ~ 0 <t: DEPTH ..I :3: SOIL HZI-H. 0:: ....
IN SAMPLE 0 0 CLASS I-<t:u. C/)u. ::::ll-NO, :z: z ELEV. (MSL.) 290 DATE COMPLETED 11/23/99 ~I-~ z. 1-;;::
FEET, I-:::l (USCS) I-C/):3:' UJu C/)LU H ° WHo C • HI-..I 0:: EQUIPMENT ROTARY BUCKET 30" zC/)...J >-0-0;;:: t!) wl.l.lcc 0:: ...... :E:o c..o:: ...... C u
MATERIAL DESCRIPTION
t-O ~//: t--./ SC-CL TOPSOll.. t-~/> Loose, dry to humid, dark gray-brown, very Clayey,
2 -::f:~::t ' fmeSAND
-:t~':f: SANTIAGO FORMATION i-, , , Dense, damp, light olive to tan, Silty, fme ' ~'. 'r "f I-4 -, , , SANDSTONE, with some clay, upper 2 feet -:." ,,],,: : r' ~ -Becomes massive I--:' '( , , -
L...BlO-1 'r't SM 8 117.6 9.3 , , .
t-6 -' " -.... i"· , . L...BIO-2 r' ~ , , . -. : :~: .. ' :-'~ r \ -=f -8 -''t' "( -Becomes light red-brown ~ :: :~::, "
--'f 't '. :-, , , "" .",," ,
:-10 -:'t'l':~' t-" 'f' 'r "f --' , , -:.",,],,: : r' f -12 -:' ,(: -'r ''t' ' , , --=rj\
-
" 'f' . -
-14 --r:'t -
--I \j\ -~B10-3 8/10'
-16 -::f:~\' -
--::t:~\ -." .~" ... 'r\ · .. f-18 -: .. ~ .. :~; l-
T't . . , , , :--:: :~:: t-'I
I-20 -::f:j::t -I-! , t t ." .~ ...
I--l'r t-· , . : .. j.:~:
I-22 -r' f f-t. ..... " :: :~:: I--::t:~::t, l-
I-24 -,·t'rt, t-
l'r · . ,
i--,",BlO-4 • \j\ t-6/9" 115.7 12.3
f-26 -
""BlO-5 ~ ::f:i:f f-
I-' -::t:i::f: l-.' 'f' I-28 -'r :'t t-" .. "1"· ..
I--~~~~~1 t-
Figure A-20, Log of Boring LB 10 LCG
SAMPLE SYMBOLS [J ". SAMPLING UNSUCCESSFU~
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ , .. CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE,
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION.AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: BORING LB11 >-Lll zw ..... >-'"' m l-Ou • 1-..... 1.1l~ ° <t: .I;lEPTH -l 3 SOIL .Hzl-H • 0::""
IN SAMPLE ° c CLASS I-<l:u.. cnu.. ~~ NO. :::I: z ELEV. (MSL.) 206 DATE COMPLETED 11/24/99 <1:1-' z.
I-:::l O::cncn LllU cn Z FEET H 0 (USCS) I-H 3' C. HlJ.J
-l 0:: I.1lcn O >-0.. or-m EQUIPMENT ROTARY BUCKET 30" Zw-l I:z ~o::e 0:: ...... 0 C u
MATERIAL DESCRIPTION
f-0 ~/% f--~/./ SC TOPSOll. -
;/// Loose, dry, .dark brown, very Clayey, fine SAND
f-2 -
I--SANTIAGO FORMATION I-Stiff, moist, olive to brown, Silty CLAYSTONE
f-4 --Very weathered and fractured I-
.
-Bedding plane shear with (calcium sulfate); f--CL-CH r-1/6" 102.9 L..Bll-1 horizontal 20.2
f-6 -r L..Bll-2
I--l-
f-8 --6" concretion layer at 8 feet-lense r-
f--i-
f-10 -r-
r---Abundant horizontal gypsum seams (1/8-1/2" thick) -
'-12 --
f--'. __ -!l~ll:!zEl!t~ E~~sit~O!!-~0.P~'!.t __________________ ,. 't .,~ ..
r-14 -J ~~t~j~~t. Dense, damp, reddish-brown, Silty, medium -L..Bll-3 SM SANDSTONE, with some clay 4 119.0 10.0
r--'tt't -
-16 -=:t:~\ -::{~\ --.... ~." -'r ,,~ , ,
18 -' . , -:: :i:: -8" fossil sheUlayer r-
--JJ} I-:,t,(t . -20 --r "t I-, , ,
--:=t :j=:f: I-
r 22 -::t:~::t I-
::t*=f I--=:f:i:=t' l-
I-24 -:-::t*=t " 'f' I--f-Bll-4 l :'t -8
f-26 -:=t*:t -L..BU-5 " 'f' f--l :'t l-
f-28 ::t:j;:f -112" horizontal clay seam; not remolded -" 'f' I-
·;t: ::~: I--.. . .... --------------------------------------~X~ ... .7.
Figure A-22, Log of Boring LB 11 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ •.• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ..
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE 'OR SEEPAGE
NOTE: THE lOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT 'IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES,
;
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I
PROJECT NO 06403-12-01
~ BORING LB 11 >-LJ.I ZIJ:l""' >-" (.!) l-Ou • 1-,,", LJ.I~ ° <t DEPTH ..J ::3: SOIL ,j:jzt H. 0::""
IN SAMPLE ° 0 CLASS <t<t, ~IJ... :::ll-
NO. ::r: z ELEV. (MSL.) 206 DATE COMPLETED 11/24/99 0::1-(J) LU • I-z I-:::l (USCS) 1-00 ::3: cc..: OOIJJ FEET H 0 WHO HI-..J 0:: EQUIPMENT ROTARY BUCKET 30" zffi..J >-c.. Oz (.!) Wo::CCl o::"f 1:0 c... '-' c CJ
MATERIAL DESCRIPTION
I-30 ~;%:~
I--~~ Hard/dense, moist, reddish-brown, Clayey I-
l:~ SANDSTONE, and Sandy CLAYSTONE
I-32 --Alternating beds I-W;r:, SC-CL
~ -I-~~1 I-34 -'~»'~ '. __ -!I9r.!zEI!t~E~d~~~ ______________ ' _________ ,' l-
I--I ~ Hard, very moist, olive, Silty CLA YSTONE I-
,...Bl1-6 CL-CH -Fractured, with gypsum-linings 10 l12.7 18.4
I-36 -~ t-
I--t-
I
I-38 -t-
I---Remolded clay seams N-S, 40E; discontinuous, 1-2" l-
I-40 -I zone l-
I--l-
I-42 -""tNt --------------------------------------
I--::~:l\ Dense, damp, light brown-olive, Silty, fme' i-
" 'f' SM SANDSTONE
-44 -'r :'t I--. '~-' .
I-:"~,, -:r:
BORING TERMINATED AT 45 FEET
.
"
Figure A-23, Log of Boring LB 11 LeG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ .,. DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE GONDITIONS AT OTHER LOCATIONS AND TIMES,
I
I PROJ~CT NO. 06403-12-01
I
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I.
DEPTH
IN
FEET
f-4 -
SAMPLE
NO.
6 ~ lB12-1 I
-
r-8 -
--
-10 -
~ I~ roIL
..... ! 2!1 CLASS 8 : ~ (USCS)
CL '.
SM
BORING LB 12
ELEV. (MSL.) ---.;2=1:..::;..5 __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOll..
Stiff, humid to dry, dark gray-brown, Sandy CLAY
SANTIAGO FORMATION
Dense, damp, light brown to tan, Silty, fine
SANDSTONE, with coarse lenses, massive
11/24/99
-
-6' -
-
-
I-
>-.1-" H • CJ)!J.. z. UJu o •
>-0-a:: v o
122.9 11.7
--
!:~ r:+r!.::;.:}:r--i-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --il-I---+ .. ---1----;
Dense, damp, light olive, very Silty, very fine
SANDSTONE to Sandy SILTSTONE -12 -~M-Ml
--
1t+7-?-:t--f-----t - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----;---t---I
-14 -t=:i::
SM
Dense, damp to moist, light brown, Silty, medium
SANDSTONE
4 --~B12-2::~·l::~.
f-16 -.Rl?_~ ~·:;.::~i;,.;:·h'I-~·-+---+, __ -~:s.z lo..E~ !:e!Y_iEr~gEl_ar_c!.eE.0~ili~n_c~~'!.c!.. _________ '_,+~ __ -+-__ -+-_-I
r--,/7'/" -Hard, moist, olive to brown, Silty, Sandy
f-18 -CLAYSTONE, with irregular 1"-2" lenses of
CL-SC sandstone, with scattered gravel -
r -
f-20 --!f*.~g-+---+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-------1----1----1 ~ f--
f-22 -
-~
Hard, moist, olive, Silty CLAYSTONE; fractured,
massive
-
-
'-
f-24 -lB12-4 ~~ CL I-3
I-
108.0 20.6
f--lB12-5 ~
; :: ~ IX.'Vhl'/v'/~ -Joint with 1/4", jarosite-stained clay lining N80E,
308
Figure A-24, Log of Boring LB 12 LCG
~AMPLE SYMBOLS o '" SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
. (] ••• STANDARD PENETRATION TEST •••• DRIVe SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION.AND AT THE
DATE INDICATED. IT IS NOT WARRANTED' TO BE REPRESENTATIVE OF SUBSURFAC~ CONDITIONS AT OTHER LOCATION~ AND TIMES.
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BORING LB 12 ZUJ" >-" °u' 1-" UJ~ HZI-H. 0:::'"' I-<I:I.J.. CJ')I.J.. ::ll-ELEV, (MSL.) 215 DATE COMPLETED 11/24/99 <1:1-' z,
O::CJ)CJ) l.I.l u I-z I-H::::t 0. CJ)w HI-l.I.lCJ')O >-a.. Oz EQUIPMENT ROTARY BUCKET 30" zUJ.....I " l.I.le:::aJ 0::"'" l:o
a.. '"' j:l, u
MATERIAL DESCRIPTION
-Slight seepage along fracture
-12· horizontal deposition contact -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1----1----1----1
Very hard, damp, gray-olive, Sandy SILTSTONE,
with some clay
-Massive, no fractures, difficult drilling
BORING TERMINATED AT 41 FEET
Figure A-25, Log of Boring LB 12
r-
r-
!-14/7"
r-
-
LCG
SAMPLE SYMBOLS [] •• , SAMPLING ~NSUCCESSFUL
§§ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE CUNQISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIF.IC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS' AND TIMES. ,
, ,
I
PROJECT NO
DEPTH
IN
FEET
" SAMPLE
NO.
06403-12-01
>-ffi C,!) I-:3 ~ SOIL ~ ~,CLASS t:i 5 (USCS)
...I 0:: C,!)
"CL-SC
BORING LB 13
ELEV. (MSL.)----"l;;;;;...9~0 __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOIL
Stiff, moist, dark brown to reddish-brown, very
Zw"'" >-" DU' t:i"'" ' w~ HZI-0::'" I-u.. C/l' <I:<I:,-zu.. ::::lI-e::: I-C/l w' I-z I-C/l3 c~ C/l1.JJ WtijO HI-
ZW-l >-0-Oz l:l: O::S o::~ L:O
C U
11/29/99
, -
l-
-
I-2 -I l-::f:~::r ::t:l::~.
, Sandy CLAY , I-
I-4 -SANTIAGO FORMATION , l-
SM I-7 116.4 10.6
l-I ::f:~::t' :·~·kr -L..B13-1 'I r:
I-6
Dense, damp, l~ght brown, Silty, fme SANDSTONE
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-
-
- 8 -
,,"~' ""r ::f*:t :;, :~::c
"~ ... c
I-
~~t' I-·.r.·.· . ." -Bedding horizontal _ 1'bi't*"'i-'tJ-t------r . ____________________________________ ~ t----f---t----j -
I-10 -
-
I-12 -
- -
-14 -
-
-' 18 -
- -
-20 ~
- -
-22 -
--
-28 -
--
f-.1L-SM
SM
Hard,. moist, light olive to brown, very Clayey
SILTSTONE, with interbedded thin SANDSTONE
beds
-Bedding N20W, 8SW
Dense, damp, reddish-brown, Silty, fine
SANDSTONE, with some clay
-Cemented sandstone layer -8" thick (fossi1i~erous)
Dense, damp to moist, red-brown to olive, Silty, fine
SANDSTONE, with interbedded claystone
-4-5" claystoneJayer (no remolding)
Figure A-26, Log of Boring LB 13
I-
I-
I-3
I-
I-
I-
I-
I-
I--
I--4
I-
I-
I-
I-
112.3
-118.5
18.9
16.1
LC:
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST" ••• DRIVE SAMPLE (UNDISTURBED)
iJ .. , CHUNK SAMPLE l!: ... WATER TABLE OR SEEPAGE =,
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE '
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECTNQ. ()n4()'~-12-01
I
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1
1
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'I
I
DEPTH
. IN
FEET
I-30
!--
I-'32 -
--
!-34 -
-
SAM!lLE
NO.
!-~B13-5
!-36 -r...B13-6
I--
-38 -
--
-40 -
;--
!-42 -
!--
-44 '-.
I!
>-C!)
'0 ..J SOIL
0 CLASS Z I-H (USCS)
..J
J~t~; t:
1":1';
;~ :
1\/
~ f~ CL
I ~ ~ ~ ~ ~
~ ,'9' =
.. .'
BORING LB 13 Zw""' >-" cu' ~'"' lLJ~ HZ~ H • 0:: ..... f-<tlJ.. CJ)lJ.. ::JI-ELEV. (MSL.) 190 DATE COMPLETED 11/29/99 <I:~ "\, Z • I-z rl::cnCl'l lLJu f-H:3: Cl • CI'lUl I..l.IcnO >-0-HI-
EQUIPMENT ROTARY BUCKET 30" zlLJ..J Oz
~0::6 0::'"' l:o
Cl 'W
MATERIAL DESCRIPTION
-4-6" thick cemented sandstone layer -
-
-
, ___ -§llgE~ sEe'p~gE 1PErE1!.e~) _____________ . ________ , -}---t-----r---l
Hard, very moist, olive to brown, Silty CLAYSTONE
-Fractured, caving, with water along fractures
. -. .
9 -
-
-
;-
-
;-
' ___ -§ll@~s~e'p~gE __________________________ ,+----+----1---
Very hard, moist, olive-gray, Clayey SILTSTONE
-Slight to moderately cemented in upper portion
!-
....
1-12/9" 115.4 15.3 -'"
-~B13-71
-46 -
-ML
- -
-48 -
- -
-50 -
- -
-52 -
--
rM"~ll-+---r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---~ ~~ CL Hard, moist, dark olive, Silty CLAYSTONE.
~~~r----+-------------------------------------
SP
Dense, very moist, light olive to brown, medium to
coarse SANDSTONE
-.-
r-
!-
r-
r-
-54 .-
Ir ~~L ~¥£-:r-1-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I---l---r--I::t:: :.
--lB13-8
-56 -r...B13-9 --
-58 -
!::t=: ::r: :.:~:~ :~;
J~j::-; ~:J:~~: ~:~::I.: t::
SM
Very dense, damp, medium olive-gray, Silty, very
fine SANDSTONE, with trace. clay !-20/10"
r-
::f:~" }: BORING TERMINATED AT 60 FEET -l----!-----r-----H~d, ~~i~t~ d~k-oli~e~ Clayey siLTSTONE ----------, --ML
Figure A-27, Log of Boring LB 13 LC
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
Itl.§ '" DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE :!: " .' WATER TABLE OR SEEPAGE . =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT T.HE SPECIFIC BORING OR TRENCH. LOCATION AND 'AT THE'
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFA~; CONDITIONS·AT OTHER LOCATIONS AND TIMES.
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·1
I
PROJECT NO
DEPTH
IN
FEET
SAMPLE
N9·
06403-12-01
>-CD o -I o :r: 5
0::: lLl ~ 3 SOIL
° z :J o 0::: CD
CLASS
(USCS)
BORING LB 14 ZUJ~ °u . H z !-!-<t:u.
ELEV. (MSL.) _=19..;;..5 __ DATE COMPLETED 11/29/99 ~~;;, !-H3 UJeno
EQUIPMENT ___ --..;;R=O;;;..T=AR==Y'-"B::;..U=C=KE==T'-"3:;..:O'-"_____ rlj ~ffi 0-'-'
>-!-~ H • C/)u. Z. lLlu O.
>-0-0:::'-' o
I -0
MATERIAL DESCRIPTION
SC TOPSOll..
I
I
I
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I
··1
I
I
--
SM
- 4 -
--
- 6 -
-'-... ML
-8 -
\ Loose, dry, dark gray-brown, Clayey, fine SAND
SANTIAGO FORMATION
Dense, damp, light brown to tan, Silty, fine .to
medium SANDSTONE
Dense, damp, light olive, Sandy SILTSTONE, with
trace clay
I
-
-
-
- -~~H-f------+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---+---1 ·.r •• '~' • r •• ~
-10 -... B14-1 I :=f:l::f: - -':r:bt' SM
Very dense, damp, light brown-tan, Silty, fme to
medium SANDSTONE -8/10"
~ 12 -
--
,... 14 -
-
,.r'l'· ::t:~::t. "t,1. '~ , " ::t:1:r ':t:~::t
\*=f' ~ 16 -::t:~::f - -::t*=r
-
I-
-Becomes moist I-
I-
'-::t=~::tC
_ 18_ -!7,1··,;.,L.,.,.J .... ;,,;. '!--I----I-\ -Very irregular scour-contact into weathered r;-
\ claystone (to a clay seam), N70E, lOS, wet, plastic, , ;-
\ 112-1" thick I
-20 -/--B14-2 • CL ~ - -H~d~ ~7,i~t~ light oli~;' -;';ri Siity-CLAYSTONE, -------t ,..
- -"" with some sand interbedded throughout ;-
I-22 -
I--
I-24 -
I--
I-26 -
I--
I-28 -
--
I
~ l%
~ %
-Discontinuous clay seams (slickensided fractures and
varying dips in 6" zone)
Figure A-28, Log of Boring LB 14
-
-
-
I-
I-
8
124.2 14.0
LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD 'PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING 'OR TRENCH LOCATION-AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAG; CONDITIONS AT OTHER LOCATIONS AND' TIMES,
I
I PROJECT NO 06403-12-01
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0:: BORING LB14 >-UJ ZLIJ'"' >-'"' t!) l-Ou • 1-"" UJ~
DEPTH 0 <t: SOIL H l-.H • 0::"" .-l :3: I-Zu. SAMPLE 0 0 CLASS <t:<I:, (/)u. :;:)1-IN :z: Z ELEV. (MSL.) 195 ·DATE COMPLETED 11/29199 0::1-(/) Z. I-z NO. I-:;:) I-Ul:3: UJu (/)UJ FEET H 0 (USCS) UJHo o . HI--l 0:: EQUIPMENT ROTARY BUCKET 3011 ZUl-l >-0-Oz
., t!) UJUl CO 0:: .... :E:o O-c:t:::"" 0 u
MATERIAL DESCRIPTION
r 30 /-,BI4-3 I~ ~ , 15/8"
r ---------------------------------------
r 32 -Very dense, moist, gray-olive, Clayey SILTSTONE; '-
ML with some very fine sand
'---
i-34· -I-
r--'. __ -!!~rizEl!t~ E~Mig[ _______________________ ,.
>-36 -~ ,I Very hard, moist, dark olive-brown, Silty -CLAYSTONE, massive
'--.,-
I .'
'-38 --
:---
-40 --",B14-4 CL 15/8" --/-,B14-5 -
r 42
BORING TERMINATED AT 42 FEET
..
..
..
Figure A-29, Log of Boring LB 14 . I LCG
SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
IiJ •.• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE.
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS 'AND TIMES •.
1
I. PROJECT NO 06403-12-01
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..
0:: BORING LB15 >-LLI ~UJ~ >-"" CD l-I-,.... llJ~ 0 <I: HUI-DEPTH --l :3: SOIL I-zu. H • 0::'""
IN SAMPLE 0 c CLASS <I: <I: , CJ)u. ::;)1-NO. Z z ELEV. (MSL.) 250 DATE COMPLETED 11/30/99 0::1-CJ) z • I--z I-::;) LLlu FEET (USCS) I-(J)::l: C. CJ)LLI H 0 UJH O HI---l 0:: EQUIPMENT ROTARY BUCKET 30" z(J)--l >-Cl.. Oz C!J UJ WID 0::'"" ~o 0..0::,"" C U ..
MATERIAL DESCRIPTION
~ 0 ;/.} ~ -LANDSLIDE DEBRIS r-f./> Loose, humid, dark brown, very Clayey, fme. SAND
r 2 -z/:"/. -Becomes medium dense, damp, light olive, very r-
,.. -/(/. Clayey, flne to coarse SAND '-v..:// -Highly weathered and fractured
-4 -/./} ~ SC
'--!/.-' r-
~ 6 -;;/0 r !f r--~/--/. '-,
r-8 -/{ , -Clay seam, 1/8"-1/4"; N65E, 25N, joint, with • -
~ -\ calcium sulfate lining } '-_____________________________________ 1
r-IO -Stiff, moist, olive, very Sandy CLAYSTONE, with ,..
,",B15-1 CL some silt, very fractured, weathered 1/6" 106.7 21.0
I---
r-12 -f-'B15-2
-Fracture and clay seam; 1/8"-1/4"; N60E, 8-lOSE, -
--wet, plastic and slickensided, throughgoing, with -,
I
calcium sulfate lining 1--14 --Remolded clay seam; 114"-112", N50W, IS-20NE;
--wet, plastic and throughgoing, with orange iron oxide -\ staining-base of slide
16 -~ SANTIAGO FORMATION -_. -~ Hard, moist, olive, Silty CLAYSTONE; fractured, but l-
I ~ massive and intact -18 -~ I-
-~ -Becomes medium olive ~
II
~ -Massive, moderate fracturing
20 -I-
f-'B15-3 ~ CL 3 122.2 13.4 --I ~ -Discontinuous clay seams; zone -lr thick at N40W, I-
~
-22 -!Ij 30-40NE , I-
---Becomes very hard, massive, with few fractures r-
-24 -~I~ r:-
--~
~ 26 -r-
~ -, -Horizontal transition to siltstone and· sandstone . 't1"t -------------------------------------,
~ 28 -:. :j:::. -:1' ':f: SM Dense, damp, light brown to tan, Silty, fine
I--':~:~:t SANDSTONE -" -j'--3_6" thick cemented sandstone ' , •• i:' .:,; , Figure A-30, Log of Boring LB 15 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ. '.' STANDARD PENETRATION TEST ••••. DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE = c
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS.AND.TIMES.
,
I
I PROJECTNO 06403-12-01
I
I
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I
'1
I
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I'·
I
I
I
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I
I
~ BORING LB1S >-. 'W ZL1.I"'" '> '" .t!) l-Ou • 1-,.... L1.I~ 0 <I: DEPTH ..J :I SOIL HZI-H. c:: ..... SAMPLE 0 Cl .. ~<I:~ (J)u. ::::ll-IN NO. :r: Z CLASS ELEV. (MSL.) 250' DATE COMPLETED 11/30/99 ~.I-(J) z. t;z FEET I-::J (USCS) . I-C/):3: Wu
H 0 WHo Cl • 'HUJ
..J ~ EQUIPMENT ROTARY BUCKET 30" zC/)..J >-0-01-
t!) wL1.l cc 0::'"' :l::z 0 0-C::'"' Cl u
MATERIAL DESCRIPTION
~ 30 f--B15-4 ::f:~::t-20/11'1
~ -·t -r -f--B15-5 :-'( : "-'rot f-32 -.: :f . -
~ -:t ':f: ~ .: :~:9.~ -f r --. ~ 34 -"., 9j" , ~ :·t· .;( ... ~ --~.' f-'r -'f ,. ,
~ 36 -: .. ., j': . ~ r' f' -Becomes medium to very coarse-grained and massive ' , , .to , " ....
~ -.. . ~ ... ~ , f r . -. : ... ~.: :
~ 38 -r' f ~ , . , .: :~: .. , • f T ~ -'::f' :-
~ 40 -·t "f -.
f--B15-6 I :~~~~:~f~ 20 128.9 12.4 ., .,..,.,
I-:
BORING TERMINATED AT 41 FEET
-
Figure A-31, Log of Boring LB 15 LCG
.. . .
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TE;T •••• DRIVE SAMPLE (UNDISTURBED)
t;J '" CHUNK SAMPLE' ~ ... WATER TABLE OR SEEPAGE =-'. . .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR rRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER .LOCATIONS AND TIMES.
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DEPTH
IN
FEET
o
2
4
6
8
SAMPLE
NO,
1
SOIL
CL
CL
BORING LB 16
ELEV. (MSL.) 175 DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOll.
Stiff, humid, dark brown, Sandy CLAY
SANTIAGO FORMATION
Hard, damp, olive-light brown, Sandy CLAYSTONE
-Very fractured and weathered, with calcium sulfate
filling some fractures .
ZUJ'"' .>-" °u . 1-,", U1~. HZI-H, 0::'"' I-<I: lJ. CIllJ. ::JI-11130199 <I: 1-' z, O::CI)C/) Wu I-z I-H:::t Cl ., C/)UI HI-WCI)O >-0-Oz zUJ-I ~a::e 0::'"' 1:0
Cl U
~~;l-+-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----ir----+---i
10 ML
Dense, damp, light olive, Clayey SILTSTONE
8/11" 121.4 13.3
12
14 /-;FJ:l-H!-c!1-t----t - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----I----t---;
16 SM
18
20 CL-SC
22
24
26
28
Dense, damp, light brown to tan, Silty, fine
SANDSTONE, mass.ive
-Irregular depositional contact approximately N-S,
, 20S; no shearing . J -------------------------------------, Hard, moist, light olive to brown, Sandy
CLAYSTONE to very Clayey, fme SANDSTONE
-Massive, blocky fracturing
Figure A-32, Log of Boring LB 16
4
LCG
SAMPLE SYMBOLS o .. , SAMPLING UNSUCCESSFUL
~ ... 0 I STURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE' ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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0:: BORING LB16 >-1.1.1 ZLlJ'" >-'" (.!) I-
DEPTH 0 (J: °u . 1-", 1.1.1;":
...J :3: SOll HZI-H. 0:: ...... SAMPLE I-u. cnu. IN 0 0 Cl:ASS--<I: <I: "-::ll-NO. :r: Z ELEV. (MSL.) 175 DATE COMPLETED . 11/30/99 Ct: I-cn Z. I-z FEET I-::l (USCS) 1-00 :3: 1.I.Iu .cnLlJ H 0 wHo O. HI-...J 0:: EQUIPMENT ROTARY BUCKET 30" z(J)...J >-0.. Oz (!) 1.I.ILlJc:a 0::"'" :E:o 0..0::"", 0 U
MATERIAL DESCRIPTION
;.. 30 i..JB16-3 14 123.8 13.3 ---i..JB164
-32 --
---
-34 -, -Clay seam-contact, N60E, 20SE, 1/16-114" thick, ::~rt: r \ wet, plastic and undulating; with very fractured, I . --'t ''( \ iron-stained zone -2" on either side . I -: .. ( : ~------------------------------______ I
-36 --:f: :'f Dense, damp to moist, light brown to olive, Silty, r-: ... ~.: medium to coarse-SANDSTONE, with some clay r' ~ -,-: .. ( . f-'r 't SM ... -38 -: ... ~.: . r-r' ~ --:'{ r-''( 't
-40 -I ~~t~~~~f' r-i..JB16-5 16
'--':f:1:-f r-. "'" , . ,
, -Fine, gravelly sand along nearly horizontal contact . "" "" ,... 42 -' , ,
~~ ~ ~--------------~---------------------~
'--Hard, moist, medium oiive-brown, Silty ~ ~~ CL CLAYSTONE
'-44 -~ ~ -
'----------------------------------------I I~ -46 -~ Very hard, damp, dark gray-olive, Clayey -ML SILTSTONE, with some very fine sand --r-
-48 ---------------------------------------t· ~ , :. aj.: Dense, damp, light brown, Silty, fine SANDSTONE ,.. -r' f f-. . ...
-50 -:-.~.: -r-·:t:·:+ L..B16-6 :r~':t: SM 20/11" 128.0 10.5 --.' 'f' . f-L..B16-7 ::t:. ::~: -52
BORING TERMINA!TED AT 52 FEET
Figure A-33, Log of Boring LB 16 LeG
SAMPLE SYMBOLS [] '" SAMPLING UNSUCCESSFUL
~ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST' •• -,. DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE y: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG ·OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCAT10N AND_AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE C,ONDITIONS AT OTHER LOCATIONS AND TJMES.
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I PROJECTNO 06403-12-01
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0:: BORING LB17 >-UJ ZUl"'" >-1"\ t!) l-Ou . 1-,.... Ul;": 0 <I: DEPTH ...J :3: SOIL Hzl-H. 0::'-' SAMPLE o· Cl 1-<I:L1.. .UlL1.. ::ll-IN NO. ::t: z CLASS ELEV. (MSL.) 240 DATE COMPLETED 12/1/99 <I: I-'\. Z. I-z I-::l O:::cn Ul UJu UlUJ FEET H ° (USCS) I-H:3: Cl, HI-...J 0:: UlcnO >-a.. Oz EQUIPMENT ROTARY BUCKET 30" ZUl...J .t!) ~o:::e 0:: ..... :E:o Cl' U
' .. MATERIAL DESCRIPTION ,... 0 ~ VYv-
,... -~7 FILL ,... ~ V/y Soft, humid. mottled dark brown to light olive, Silty
,... 2 -~ ~~ CLAY, with some sand, porous texture, rootlets ,...
CL
,... -~ ~7 -
,... 4 -V V/
,... -I SANTIAGO FORMATION f-
!% Very stiff, damp, medium olive, Silty CLAYSTONE;
,... 6 -~ very fractured, brittle I-
!% CL --~ I-,
,... 8 -\ -Near-horizontal contact (transitional over several _ f-
::f ~ ··C· I inches) J --·l·-I-~B17-1 · ,,~. SM -------------------------------------, 8 127.4 11.5
"-10 -::t '( : Dense, damp, light olive to brown, very Silty, fine I-l..B17-2 ::~ :~::t . SANDSTONE, with some clay
i--.. ... . "~' I-::t .. , , -12 -:=t
.~.:. I-
.. :j:'~
i--::t :~::( _6" x 24" lenticular concretio~ f-
:=f
· .. -14 -.. t I-.j.: -Becomes light brown to tan, very Silty, fme
:--:1 :i::f: SANDSTONE I-
:=f r ,... 16 -:f:= I-
::t · "f :--:=f :j::t· -Becomes medium-grained (orange, horizontal 3" bed) -'r -18 ,... · 'r -::t :{(' -.-::f .. t -:~::~: --20 -I ~~~ -l..B17-3 :~::f: -Becomes orange, coarse-grained 8/10" r --: :~::~: ,...
-22 -::t :~::f: -
--::f :f:t -::t "f ,... 24 -:1:: --------------------------------------::f ·'·"t -,... =:t *=f
-Becomes very moist, orange, Silty, very coarse . l-· . SM SANDSTONE
f-26 -~:~ :~::t Sz l-
f--.j.: =
\ -Slight seepage (perched above sharp, horizontal, -\ scour-contact /
f-28 -~L-CL . --Ha";d, ~~~t~ Ught o-li~e~ ~;ri Cl;y""ey SIl:rSTONE -------I l-
f--\ -Cemented, fine sandstone, 6 "_8" + -, gray, horizontal . ::f :l-:t SM I at base J -------------------------------------,
Figure A-34, Log of Boring LB 17 LCG .
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE CUN~ISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER ·TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO. 06403-12-01
0:: BORING LB17 > I.J.J ZUJ"" > '" t!) I-°u . 1-", I.J.J~ 0 <J: DEPTH -l ::I SOIL HZI-H. 0::"'"
IN SAMPLE 0 ° CLASS ~<I:~ C/)u. :;:)1-NO. Z z ELEV. (MSL.) 240 DATE COMPLETED 1211199 ~~~. z. I-z I-:;:) I.J.JU · FEET· H 0 (USCS) O. C/)l.LI HI-..J .0:: WenO >0.. Oz EQUIP~ENT ROTARY BUCKET 30" Zw...1 t!) wo::aJ 0::"'" 1:0
0.. "'" 0 U
MATERIAL DESCRIPTION
-30 L..B17-4 I "f Nt' SM Dense, wet, light olive, Silty, medium SANDSTONE 14 123.4 . 1:2.3 ,. " ... --::t:~::f' ~ -Slight seepage f-.' .. ",. .
-32 -,.~,,~ ....
\ -Scoured deposition-contact; NlOE, lOW (with -I" r ~ \ iron-stained basal layer) I - -~ ~------------------------------______ I f-Hard, moist, medium olive, Silty CLA Y~TONE
-34 -~ ,... ~ r--~ ~ -v.: CL
-36 -1% '-~ ~ -Becomes very sandy (lenses) --~ -~ ,
-38 -~~ -
--II -
'-40 --Becomes very hard, dark olive-gray, Silty -L..B17-S 20/10" - -CLAYSTONE -L..B17-6
~ 42
BORING TERMINATED AT 42 FEET
..
Figure A-35, Log of Boring LB 17 LCG'
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
.~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRAT1.0N TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE = . .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR T.RENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIYE OF SUBSURFACE CONDITIONs AT OTHER LOCATIONS AND TIMES.
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PR01bCT_~Q._
--DEPTH SAMPLE IN NO. FEET
r-0
r--
r-2 -
r--
r-4 -
I---
I--6 -
I--
r:-' 8 -
I---
-10 -
--
-12 -
- -
,.. 14 -
,.... -
,.. 16 -
'--
-18 -
--
-20 -
--
-22 -
I---
I--24 -
I-
964Q3-12-Ql
~ I~ $OIL .... • ~ CLASS 8 I§ (USCS)
CL
CL
SM
I CL
ML
BORING LB 18
ELEV. (MSL.)----'2=1~5 __ DATE COMPLETED
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
COLLUVIUM
Soft, damp, dark brown, Sandy CLAY
SANTIAGO FORMATION
Hard, moist, medium light, 9live-brown, very Silty
CLAYSTONE
Dense, damp, light brown to tan, Silty, fine
SANDSTONE
1211/99
-
-
-
-
-
-
I--
I--
I-
I--
I--
I--
.1--
-N ear-horizontal contact -------------------------------------, Hard, moist, light medium olive, Sandy
CLAYSTONE, some silt
-Deposition-contact, N65E, lOS -------------------~-----------------, Dense, damp, light olive-brown, very Sandy
SILTSTONE .
BORING TERMINATED AT 2S FEET
I--
Figure A-36, Log of-Boring LB 18
zUJ ....... > ....... °u . 1-,", IJ.IN Hzl-H. 0::'-' 1-<I:;lJ.. (/)lJ.. ::;)1-<I:l-' z. O::(J)(/) Wc.J I-z I-H::3: O. CJ)w
HI-" Wcn O >0.. Oz ZUJ...I ~o::e 0::'-' :E:O 0 c.J
LCG
SAMPLE SYMBOLS o . ~. SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
IiiJ • •• CHUNK SAMPLE J: ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LocATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFA~E CONDITIONS AT OTHER LOCATIONS AND TIMFS.
I
'1 PROJECT NO. 06403-12-01
I . DEPTH
IN SAMPLE
NO.
...I
~ I~ I~ SOIL g I c: CLASS
I-I ~ (USCS)
BORING LB 19
ELEV. (MSL.)_2=7~5 __ DATE 80MPLETED 1211199
>-1-"", H. cnlJ.. Z. LlJ u C. I FEET ~ I Cl
-CL
EQUIPMENT ROTARY BUCKET 30"
MATERIAL DESCRIPTION
TOPSOIL
Stiff, damp, dark brown, Sandy CLAY
>-0-0:: ......
C
v;(1 m:t6
- 2 -I I--~B19-1 SC
SANTIAGO FORMATION
Loose to medium dense, daIPp, reddish-brown, very
Clayey, fine SAND, with gypsum, very weathered
sandstone
I-4 -I-
-
6 -.1. :. W~ ~~ I-
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I--rf.-r-r':!"forlA--I----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --r----f----!----i
I-8 -ML
Dense, damp, light olive, Sandy SILTSTONE
I--
~+':!':!-+-----+ --- - - - ----- -------------- - - ---- - - -----:-1-----+---+---1
I-10 -r '019_2 :::
I-
SM !-,OJ. \.;
-LB19-3 '~'
I-12 -""":_:'l':~"'.'-'
Dense, damp, reddish-brown, Silty, fme
SANDSTONE
-Fossiliferous, with organic odor
- 6
-
-
121.1 9.4
:::~ ,-Cemented sandstone (concretion) -\y',,**-+---j. _____________________________________ ,+---+---+----l
Dense, moist, light olive, Clayey SILTSTONE, with -
some sand f-'
ML
I-
I--
I-14 -
I--
I-16 -
I--
I-18. -
I--
~ !m',w.,rr-+---+, ___ -!i~riz2IE~ E~d~i~g.:~o!:t~C! ___________________ .-I-------+---+----l
CL
~ ~
I--
~ 24 -
- -
l-Very stiff, very moist, medium olive, Silty
CLAYSTONE, with interbedded sandstone
(fossiliferous) and gypsum, and jarosite (iron sulfate)
coatings on fractures
-
-
-
I-
1
-26 -r f¥i"'~:l--I----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----I---~I------l !::f:i;: --SM
-28 -
Dense, moist, reddish-brown, Silty, fme
SANDSTONE; very fossiliferous -
I--
:~~~::::: '::f::!~: ::f::t:: !M-,;m;-+---j. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --f----/----I----~~
Figure A-37, Log of Boring LB 19 LeG
~AMPL~ SYMBOLS o ... SAMPLING UNSUCCES~FUL (] ••• STANDARD PENETRATION TEST •••• DRtVE ~AM~.LE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE ij;J ••• CHUNK SAMPLE ~ ••• WATER TABLE OR ~EEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OT~ER LOCATIONS, AND TIMES.
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PROJ~\,;-.!... NQ, 011403-12-01
~ BORING LB19 >-zlJJ ...... >-'" t!l °u . 1-"" ~
DEPTH 0 SOIL HZI-H. '-' -I ~ SAMPLE 0 CLASS I-<I:LL. C/)u.. ~ffi IN NO. ::t ELEV. (MSL.) 275 DATE COMPLETED 12/1/99 <I: 1-' ai '. t:t:::CJ)CJ) FEET I-I~ (USCS) I-H3 0": ~~ H -I IJJC/)O >-0.. EQUIPMENT ROTARY BUCKET 30" zlJJ-I ~t:t:::e3 t:t:::"'" 0
MATERIAL DESCRIPTION
-30 ~B19-6 I II~ ML Hard, moist, olive, Silty CLAYSTONE 9 107.2 21.5 - -
ro'
-32 -I-
--I-
,... 34 -, -Strong seepage at 34.5 feet
t
= \ -Horizontal contact I
i--------------------------------------, ro -CL Hard, wet, medium-dark olive, Silty CLAYSTONE'
ro 36 --Fractured (with water seepage) and jarosite/gypsum ro coatings
i--r-
'-38 --'-Horizontal contact ;-, -------------------------------------~ ,.. -:f: Dense, moist, reddish-brown, Silty. medium to coarse -SANDSTONE
,.. 40 -
W319-7
,~: -
:::-
SM 16
I--~B19-8 -
I-42 -,:~ t~~~~ -------------------------------------
,.. -r.s19-9 ~I L ~l-Ml Very hard, moist, dark gray-olive, Silty CLAYSTONE -to Clayey SILTSTONE
I-44 -~~ ro
,..
BORING TERMINATED AT 45 FEET
Figure A-38"Log of Boring LB 19 I LCG
, SAMPLE SYMBOLS ' 0 ... SAMPLING UNSUCCESSFU~ IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
, . ~ ••• 'D I STURBED OR BAG SAMPLE i;J ... CHUNK, SAMPLE :Y: ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT-NO 06403-12-01
0::: BORING SB 1 :>-' UI ZI..LJI"' :>-""' (!) l-Ou • 1-1"' LIJ~ 0 <C DEPTH ...J :::3: SOIL HZI-H • 0::: v
SAMPLE ° C I-<t:u. Cl)u. =>1-IN ':I: Z ' CLASS ELEV. (MSL.) 140 DATE COMPLETED 11/11/99 <CI-' Z. '"'"Z NO. l-=> O:::CI)CI) Ul U Cl)LIJ FEET H ° CUSCS) I-H:3: C. HI-...J 0:: UlCI)O :>-0.. Oz (!) EQUIPMENT IRA 300 zl..LJ...J 0::'"' I.: ° Ulo::CCI 0.. '"' C u
MATERIAL DESCRIPTION -0 --. --ALLUVIUM/COLLUVIUM ------Soft, damp, dark yellowish-brown, Sandy, , -2 --SILT/CLAY, highly porous, roots -
---,-----
f-4 ----. ,.. -f:: MLlCL -105.9 16.7 SB1-l-' · '9
f-6 --.
f----. -r-8 -· -' .. . · f--. -
I-10 -[~V ,V'
TERRACE DEPOSIT -18 SBI-2 [,IV V
I--VV' MLlCL Stiff, damp, pale yellowish-brown, Sandy -V~ )' SILT/CLAY, slightly porous r-12 -Vv -" /
I--1/ " V -~V ",
I-14 -I)V ~ -
--I~~ 1,1 -S;81-3 ~ "
21
16 -~/ -Becomes dusky yellow to grayish-orange to pale -
--V~ yellowish-brown, with dark yellowish-orange speckles -
V
18 -1,1 '/ -V~ -Vv I" -V [~V V --20 --SBl-4 22 -'-I-I/ V -Mottled/stained black -1,11/ /
-22 -~V ,,I -
--I/V ~ -
24 -~V 1/ -V 1/ Y --SBI-5 I ML .27
26 -SANTIAGO FORMATION. 'l-Very stiff, damp, pale yellowish-orange to
I--grayish-orange, Sandy SILTSTONE, moderately to l-
f-28 -intensely weathered, poorly defmed lanrlnations l-
f--I-
Figure A-39, Log of Boring SB 1
SAMPLE SYMBOLS [J .•• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
[] ••• STANDARD PENETRATION TEST ••.• DRIVE SAMPLE CUNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN,HEREON APPLIES'ONLY AT THE SPECIFIC BORING'OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE, REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01 ....
0:: BORING SB 1 >-Ul Zwl"' >-I"' (!) l-Ou • 1-1"' Ul~ ° <C DEPTH ...I :::l: SOIL HZI-H. 0:: .....
IN SAMPLE ° Cl CLASS I-<J:IJ.. (J)IJ.. ::)1-
NO. :I: Z ELEV. (MSL.) 140 DATE COMPLETED 11/11199 <CI-' ffi· I-Z FEET I-::) (USCS) O::(J)(J) Cl~ (J)Ul H ° I-H:::l: HI-...I 0:: EQUIPMENT
Ul(J)O a: Oz (!) IRA 300 mWa3 ~ ..... :1::0 0.. 0::' ..... Cl u
MATERIAL DESCRIPTION
I-,30· SB1-6 If·mm: MH 16
:--IT Very stiff, moist, pale, yellowish-orange to I-
1\ grayish-orange, Sandy SILTSTONE, intensely / weathered, wet at tip of sample
BORING TERMINATED AT 31.5 FEET ,
-
I
.
..
..
Figure A-40, Log of Boring SB 1 LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
(] ••• STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE Y: •.• WATER TABLE OR SEEPAGE = '
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING· OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFA~E ~ONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO. 06403-12-01
0::: BORING SB 2 >-tLl ZUJI"'\ >-1"'\ C.!l l-Ou • 1-....... w~ 0 <I: DEPTH ...J 3 SOIL HZI-'H 0:::"'" SAMPLE, I-<I:u. tn· IN 0 0 CLASS ,zlL.. :::ll-NO. :I: z ELEV. (MSL.) 115 DATE COMPLETED 11/11/99 <I: 1-' w· I-z FEET I-:::l (USCS) O:::cn tn ,0': ' tnLLl H 0 I-H 3 HI-...J 0:: tLlcn O >-a.. Oz EQUIPMENT lRA300 z\J..I...J C.!l wo:;:cc 0::""' ll:o
a.. ""' 0 C:J
MATERIAL DESCRIPTION ' ,
-0 ~/;' --ALLUVIUM -/~ Very stiff, damp; dark yellowish-brown" -2 -~;II SILT/CLAY, porous, scattered soil carbonate, flecks -
..,. -/'~ and stringers -
,... 4 -'/ ill' -'/ ~V --F IV ML/CL --SB2-1 19 -6 -~~ -
,... -I' ,1/ ..;. '/ , V )'
r-8 -il VII' I-
'--/ IV
l-V /11'
"-10 -I~ /v I-SB2-2 ... 1/ 18 109.4 19.2
'--)', -Becomes pare yellowish-brown I-
'I' VII'
r 12 -/ IV l-
I--V ~~ ,...
I' 1/
I-14 -/ )'
'--[3 VII' Y TERRACE DEPOSIT -SB2-3 r)" -IMLlCL Soft to stiff, damp to very moist, duskY yellow 6
r-16 -SILT/CLAY -VII -Groundwater at 15 feet VV r--'/ 1'1/ ~
"-18 -~ v,v -Vv
r----------------------------------------~ ~/ Stiff, wet, mottled dark yellowish-orange, elastic
-20 -I!/ iMLlCL SILT/CLAY -I-
SB2-4 'v 25 104.3 21.6
r--~ II' I-VI
-22 -~ 11'/ r-/
-V 1/ ... I-
-24 -~ /~ l-iI
-V ~~ ...
SB2-5 ri/
, -7
I-26 -/ -~ ~; -Becomes firm, moist to damp, dusky yellow,
I--: V mottled dark yellowish-orange, SILT ICLA Y -
'-28 -'/ -/ ~~ I--
I11I1
Figure A-41, Log of Boring SB 2 LCG
SAMPLE SYMBOLS o ... SAMPLING 'UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iiJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT' THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFA~~ CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
Q:! BORING SB 2 >-Lll ZLll""' >-'"' (!) I-0 <I: °u . 1-", Lll~ DEPTH. ...l :!t SOIL HZI-t1. 0::'""
IN . SAMPLE 0 Cl CLASS I-<l:u. zu. ::JI-NO. Z z ELEV. (MSL.) ·115 DATE COMPLETED 11/11/99 <1:1-' Lll· I-z FEET I-::J (USCS) et:CI)CIl Cle.:· CIlLU H 0 I-H:::3: HI-, . ...l Q:! EQUIPMENT
UJCI)o >-tl.. oz (!) m.A300 zUJ...l Q:!'-" ~o ~et:e Cl u
MATERIAL DESCRIPTION
:-30 SB2-6 1,111111 iMLlCL SANTIAGO FORMATION 28 ,.. Stiff, moist to wet, dusky yellow, mottled dark I yellowish-orange, SILTSTONE/CLAYSTONE, highly
weathered
BORING TERMINATED AT 31 FEET
--
I
!
-
Figure A-42, Log of Boring SB 2 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION' TEST •••• DRIve SAMPLE (UNDISTURBED)
I§§ ... DISTURBED OR BAG 'SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =-
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE· SPECIFIC BORING OR TRENCH LOCATION AND. AT THE DATE INDICATED. IT IS NOT WARRANTED TO. BE REPRESENTATIVE OF SUBSURFA~E CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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')-Ct: BORING SB 3 UJ ' , ZUJI"\ )-1"\ to l-Ou • 1-,.,. llJ~ 0 <I: DEPTH ...I 3: SOIL HZI-H. 0:: .....
IN SAMPLE' 0 0 CLASS I-<I:I.!.. CtlL1.. '::::ll-NO. :z: Z ELEV. (MSL.) 101 'DATE COMPLETED 11111/99 ' <I: I-'\, z. I-z I-::::l Ct:cnCtl llJu FEET (USCS) I-H3: o • CIlllJ H 0 HI-...I Ct: llJcnO )-0.. Oz EQUIPMENT IRA 300 zUJ...I (!) If 0:::9 0:: ..... EO
0 u
MATERIAL'DESCRIPTION -0 ,1/ - -
VVV ALLUVIUM I-
.I )/ Stiff, daI1lp, dark yellowish-brown, SAND, -2 -'V SILT/CLAY l-V ~~ --~ ,v II I-
-4 -V ~~ 1/ I-
--r.l [.IV 1-' SB3-1 I~ ~LlCL 16 -6 -~j i-
- -
1/ ,v II I-~ 1/ ~V v ,
'-8 -1.1 ~
1/,1 1/
'--V -V ~; '-10 -r~ ,.Y II -14 SB3-2 1/ -Trace of sand below 10 feet '--~/ v~ -
LI.I -Groundwater at 11.5 feet ,... 12 -V -~ ~.1 I--v~ -1/
i-14 -,~ '--V ' TERRACE DEPOSIT I-I~ 1/,1 SB3-3 V ~/CL Stiff, wet, very pale orange to gray-orange 15 107.0 22.6 ' ,
'-16 -1.1,.1 SILT/CLAY I-
:.Iv --j V/ I-
,... 18 -;.; V' ~
VV --'/ V -
-20 -~ ~/ -SB3-4 [~ v~ 19 -I' -Becomes very stiff, pale to dark yellowish-brown -
Y'
22 -1/ V~ I-
-~ ~I/ r
I-24 -II SANTIAGO FORMATION l-
i--S133-5 CLIML Stiff, damp to moist, mottled dark yellowish-orange I-17 106.1 21.8 and yellowish-gray, Sandy CLAYSTONE/SILTSTONE i-26
BORING TERMINATED AT 26 FEET
Figure A-43, Log of Boring SB 3 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... ' STANDARD PENETRATION TEST, .... DRIVE' SAM~LE ,(UNDISTURBED)
~ ... DISTURBED OR 'BAG SAMPLE iJ ... CHUNK SAMPLE ' _ ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING ,OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OT-HER LOCATIONS AND TIMES. ,
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I PROJECT NO. 06403-12-01
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0:: BORING SB 4 >-IJ..I Z 1LI'" " >-.-.. (.!) l-Ou • 1-", IJ..I~ ° <I: DEPTH ...J :3: SOIL Hzl-H. 0::"'"
IN SAMPLE' ° Cl CLASS I-<J:1.l.. Cf)1.l.. :::JI-
NO. :t: z ELEV. (MSL.) 90 DATE COMPLETED 11/11/99 <I: I-"-z. I-z FEET I-:::J (USCS) O::cncn lJ..Iu Cf)Ul H ° I-H:3: o . HI-...J 0:: WcnCl >-0.. Oz EQUIPMENT IRA 300 zw...J t.!) ~~6 0::'"" ~.o
0 u
MATERIAL DESCRIPTION
'-0 "V "
'--V" ~" ALLUVIUM -"y-./. "V Very stiff, damp, moderate brown to moderate
r 2 -;( Yv olive-brown and brownish-black, Sandy SILT/CLAY -
I--y. -~ 'V' y"
i-4 -/. 'V l-
i-' -r Yv -r-SB4-1 ,-: (~: MLlCL 18
I-6 -y' l-
i--/. 'V r-< Vbi'
i-8 -" --------------------------------------/V
I--V// Very stiff, damp, dark yellowish-brown, Sandy SILT, l-i/ / small, fingernail sized shells
i-10 -SB4-2 ·1 ~// ML I-17
i--i/I/~ r-
i-12 -~V l-
I--,/1// .... /y ~
i-14 -//1" -Groundwater at 13.5 feet -/1/
i--[ ;X -SB4-3 // -Charcoal flecks, sampler wet 15
I-16 -/1/ -'I' ,/1/
i--r?~~~ i-18 -TERRACE DEPOSIT I-
:'g,':"': Medium dense to dense, very moist to wet,
!--' .. ";6 reddish-brown to brown, Gravelly, fine to coarse l-
I-. 20 -I\~¥.~ SAND -I-
SB4-4 SP 25 110.8 18.1 --::f::::: -Coarse gravel fragments, becomes moist I-
-22 -I l:-
i -r
,... 24 -I-
- -
'-SB4-5 r .. : .... :.: ...
-Well graded, fine to coarse sand, wet, gravelly 55 -26 -~I -
---Mottled many colors -
r-28 -.. -
I---
f"rn1H
Figure A-44, Log of Boring SB 4 leG
SAMPLE SYMBOLS [] ••• SAMPl~NG UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SA~PlE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURF.ACE CONDITIONS AT OTHER LOcATIONS AND TIMES.
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PROJECT NO. 06403-12-01
0:: BORING SB 4 >-LLI ZLLI"'" >-(J) I-'" 0 (I: °u' 1-,.... 1Il~ DEPTH ...J ::3: SOIl. HZI-H, 0::""
IN SAMPLE ° 0 CLASS I-(I:I.L. COIJ.. :::ll-NO. ::I: z ELEV. (MSL.) 90 DATE COMPLETED 11/11/99 <I: I-"-Z, I-z I-:::l 0::: COCO lIlu FEET H a (USCS) I-H::3: 0, COw HI-...J 0:: EQUIPMENT wen o >-a. Oz (J) IRA 300 zUJ...J 0::'" :£:0
.' l:l: 0::E9 0· t.l
MATERIAL DESCRIPTION
I-30 SB4-6 ItlHH~: ~LlCL SANTIAGO FORMATION 29
f-Very stiff, moist, yellowish-gray, Sandy j SILTSTONE/CLAYSTONE
BORING TERMINATED AT 31 FEET
..
-
\
'"
..
-
"
Figure A-45, Log of Boring SB 4 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUl.
~ ••• DISTURBED OR BAG 'SAMPLE
IJ ... STANDARD P.ENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBEDY
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OJHER LOCATIONS AND T.IMES.
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I PROJECT NO.
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DEPTH
IN
FEET
I f-0
, I--
1-2 -I, I-_, -
I-4 -
I I-
- 6 -
-
I = 8 = -
SAMPLE
NO.
SBS-1
I
'I
-10 -SBS-2 --
-12 -
-
;-14 -
i--SBS-3
i-16 -
-
i-18 -
-
: 20 ~ SB5-4 i
r 22 -
06403-12-01
>-t!) o ...J o ::c ..... H ...J
0:: UJ ~ ::3: SOIL
Cl CLASS
(USCS)
z :J o 0:: t!)
~LlCL
~LlCL
~/CL
BORING SB 5
ELEV. (MSL.) 75 DATE'COMPL~TED -...;..;;---11/12/99
EQUIPMENT IRA 300
MATERIAL DESCRIPTIQN
ALLUVIUM
Very stiff, damp, light olive-gray, Sandy SILT/CLAY
-Becomes very stiff
TERRACE DEPOSIT
Very stiff, very moist, light olive-brown to moderate
yellowish-brown, Sandy SILT/CLAY
-Groundwater at 19 feet
SANTIAGO FORMATION
Firm, moist, dusky yellow,
-
-
I-
I-19
I-
-
-
-'
-27
-
-
-
19 -
-
-
-
14 -
SILTSTONE/CLAYSTONE, highly porous, intensely I-
104.3 23.2
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I -1-.H.I-:f+!.I1l-i---:---+--__ ~e.!1-tE~r~d!. ~~l~r_w_e~ ___ . _________________ ---I-----j---i----
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i-24 -•
i-' -SBS-5 . ' .. ' ML
i-26 -, ..
Very stiff, wet to saturated, pale olive, fine, Sandy,
SILTSTONE, with 2-4" thick, fine to medium
sandstone interbeds, moderately weathered
BORING TERMINATED AT 26.S FEET
Figure A-46, Log of Boring SB 5
I-27
, LCG
SAMPLE SYMBOLS. o .. _ SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)'
IiJ • .. CHUNK SAMPLE l!:: ••. WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LoqATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. '
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PROJECT NO 06403-12-01
0:: BORING SB 6 >-LL/ Z'LL/" >-." CD I-0 <I: °u . 1-" lLJ~ DEPTH ..J :3: SOIL Hzl-H. c:t::'"'
IN SAMPLE 0 . -Cl CLASS 1-<1:1..1.. (1)1..1.. :::ll-NO. :::c z ELEV. (MSL.) 98 DATE COMPLETED .11/12/99 <I: I-" t5. I-z FEET I-:::l (USCS) O::(I)CIl ·o~ CIllLJ H 0 I-H:3: HI-..J 0:: ... ~(I)5· >-c... EQUIPMENT IRA 300 Oz (.!) .LL/ ~£O 0::'"' :E:o c... '"' 0 u
MATERIAL DESCRIPTION
I-0 / )', V ALLUVIUM I--It .... /V r
/1/ Very stiff, dry to damp, pale to moderate
""2 -~ /1/ yellowish-brown, SILT ICLA Y, veined with soil I-
/v carbonate '--r ..... ,.1/ l-
I-4 -~ ~v l-
I--I~ 1/1/ -,..
SB6-1· ~L/CL 28
I-6 -~~ ,..
I--1/ ,.1/ ~ Vlt -
I-8 -:1· l --------------------------------------
;--l 1'\ Medium dense, damp, dark yellowish orange, Silty '-fine SAND -10 -SB6-2 -" {'I-SM -
IJ it 8
I---
I-12 -1 1 '\ -
,.., -:j {'J-
:1· 1--1-TERRACE DEPOSIT -14 ,-l i -I Medium dense, damp, dark yellowish-orange, Silty, I-
-I :'j t 1-fine to medium SAND I-SB6-3 1:1-
SM 21 102.8 5.0
'-16 -:J. I-
-"1"-i -I I-t, -18 -/ --------------------------------------
I/~ ,
Very stiff to hard, moist, dark yellowish-brown, I--~ -.... mottled olive to orange, SIL.:r/CLAY
I-20 -[~~ '-
SB6-4 1/ !ML/CL 25
l-.-r)" ~ -
I-22 -~v It .... -V V
I--
,.. 24 -SANTIAGO FORMATION I-MLlCL Very stiffto hard, moist, pale olive, --SB6-S I SILTSTONE/CLA YSTONE, moderately weathered I-19.5 27 108.3
-26
BORING TERMINATED AT 26 FEET
NO GROUNDWATER ENCOUNTERED
Figure A-47, Log of Boring ~B .6 LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •• •• DRI VI: SAMPLE (UNO I STURBED)
~ ••• CHUNK SAMPLE ~ •.• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NO~ WARRANTED TO BE REPRESENTATIVE OF SUBSURFAC; CONDITIONS AT OTHER LOCATIONS AND· TIMES.
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I PROJECTNO 06403-12-01
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0:: BORING SB 7 >-lJ.I Z lLI"" >-(.!) I-'" 0 <I: °u . 1-"" lLI~ DEPTH ..-I :3: SOIL Hzl-H. 0::"'"
IN SAMPLE ° ° CLASS I-(Cu.. ctlu.. :::ll-::t Z ELEV. (MSL.) 170 DATE COMPLETED 11112/99 <I: 1-' z. NO. I-::::l C::cn ctl lJ.Iu I-z FEET ~ ° (USCS) ·I-H:3: o. cn Ul HI-0:: Wcn O ~e; °z (.!) EQUIPMENT mA300 ZlLI..-I L:o w'c::co ~ v 0 u
MATERIAL DESCRIPTION r'O JI'"I-r -"j".1-j ~UVIUM I-
Loose to medium dense, dry, light olive-brown, Silty,
r 2 -:', t'l-fme to medium SAND, porous, rootlets . ~
r -:1. ,"I--
r 4 -11'j --:, ~'I-r --SB7-1 [ :-1. 1.i-SM 11
r 6 -11 -j -
r -:'1 t'l-r ,
I-8 -:1, l f-
r -11 -I r
f-lO -SB7-2 :'1 r \-f-22 93.0 5,0 I :1· ."1--Becomes non porous, medium dense r -l'-j l-
I-12 -:', t-t-f-
I--,.... :1, --I-
li 'f . r 14 --
f--:'j r t, -SB7-3 r-:i/:-13
r 16 --Laminae, spaced approximately 6" apart -
r -
:'j ~'l' -
I-18 --.
I--:1,/1,
:1, 'I,}
i-20 -Ili -I TERRACE DEPOSIT I-
SB7-4 SM Medium dense, humid, grayish-orange, Silty, fine to 21 92.4 5,4
I--:'j rl' medium SAND r
r-22 -:1, :1-i-
,.. -li -I ,....
,.. 24 -:', ~'I--:1, ,} -[ lj-I -SB7-5 22
-26 -:'1 r I' -., -
--:1, l -
I-28 -li 'j f-
r--:'~ ~'l' I-
,1. .'1-
Figure A-48, Log of Boring SB 7 LCG
SAMPLE SYMBOLS· o .. , SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE CU.NDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR'TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO. 06403-12-01
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DEPT~ SAMPLE IN NO. FEET
-30 SB7-6 --
-32 -
I--
I-34 -
I--SB7-7
I-36 -
I--
I-38 -
I--
I-40 -SB7-8 -' -
-42 -
.;. -
>-t.!)
° ...J ° ::J: !-H ...I
~) \ (
» (
"i'V-44 --~ -/-v
- -SB7-9 ,[;/ V -/
-46 -V-'v -~ .
I--
I-48,-~v~
I--
I-50 -~B7-10 I
I-
0:: w l-<I: 3 t:l 2 ::l ° 0:: t.!)
'SOIL
CLASS
(USCS)
SM
MLlCL
ML
ML/CL
~LlCL
'BORING SB 7
ELEV. (MSL.) 170 DATE COMPLETED
EQUIPMENT mA300
MATERIAL DESCRIPTION
Medium dense, h1lIDid, very pale orange to
grayish-orange, Silty, fine to medium BAND
Hard, damp, moderate yellowish-brown, Sandy
SILT/CLAY, stringers of soil carbonate
11/12/99
--------------------------------------
Hard, damp to moist, mottled yellowish-oranges,
dusky yellow, SILT, fingernail sized shell fossils
--------------------------------------
Stiff, damp to moist, mottled black, dark and pale
yellowish-brown, Sandy SILT/CLAY
SANTIAGO FORMATION
Very stiff, moist, mottled dark yellowish-orange,
yellowish-gray, 'black, SILTSTONE/CLAYSTONE -
BORING TERMINATED AT 51 FEET
NO GROUNDWATER ENCOUNTERED
Figure A~49, Log of Boring SB 7
ZUJ" >-" Ou .' 1-...... wN H.zl-H. 0::"" !-<I:lJ.. C/)lJ.. ::l!-<1:1-"-z. mffi O::U)Ul Wu I-H3 o. wen o >-0... 01-ZUJ-l 1:2 ~o::S 0:: ...... ° 0 tJ,
25 95.6 7.3 -
-
-
I-52
l-
I-
l-
I-
56 108.1 11.0
I-
I-
-
-13--
I-
l-
I-31 107.8 21.0
LCG'
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ' •••• DRIVE SAMPLE (UNDISTURB~D)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
. '.'
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT. IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITI.ONS AT OTHER LOCATIONs AND TIMES.' .
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PROJECT NO . 06403-12-01
. -0::: >-I.IJ BORING SB 8 51..L1~ >-'" t!) l-I-"" I.IJ~ 0 <I: HUI-DEPTH -I ::1 SOIL I-ZLJ.. H. 0:::"" SAMPLE 0 Cl CLASS <J: <I: "-C/)LJ.. ::)1-IN ::c z ELEV. (MSL.) 110 DATE COMPLETED 11/16/99 0::: l-C/) Z. I-Z NO. I-::) I-(J)::I UJu C/)lJJ FEET H 0 (USCS) wHo Cl. HI--I 0::: EQUIPMENT IRA 300 z(J)-I >-0.. oz t!) wl..Llr::c 0:::"'" :E:o a.. 0:: v Cl u
MATERIAL DESCRIPTION -0 ./ ·
--J. ~. ALLUVIUM ~ ',1
/'1/ Firm, damp, dark yellowish-brown, Sandy -2 -. /' . SILT/CLAY, porous, roots ~
(' )~ --I' V:' ~
.;/ -4 -V. '1/ ~
Iv.-
IIv . --ML/CL ~ SB8-1 / . 14 108.8 13.6 ~ . y' -6 -;/. ~
--v. -1/ ~
v.-IIv , -8 -~~ -~ ~ --"". ~ II: orr ~ V. -Groundwater at 9.S feet -10 -[~ y ~ SB8-2 ~~ 14
'--II -Becomes stiff ~ V·
"-12 -V. -1/ l-II.
'--I?' V ~
~ ~;
'-14 -V. "". -Becomes very stiff to hard, moist, mottled dark ~ -1/
'--17. IIv ~H/CL yellowish-orange, pale olive and dark I-SB8-3 ~; yellowish-brown, SILT /CLA Y 31 113.9 18.2 .
'-16 -~ I-V· ,... -V.V~ ~
-18 -17 ;/ --------------------------------------· · . -Firm, moist, grayish orange to dark yellowish-orange, ,... -· ,... -Sand~ SILT
-20 -r--~,:
SB8-4 ML 8 -.:. r:· --· -.. --22 ----~ -· -· · · . Stiff, moist, dusky yellow, mottled dark ~ 24 -'. -. yellowish-orange, Sandy SILT, some fme sand,
I---moderately to intensly weathered ~ 103.8' 23.5 SB8-S · 21
I-26 --· ~ · . -Becomes clayey ·
I--. I-. ,... 28 -~ · · · -'--· r-· -
Figure A-SO, Log of Borin~ SB 8 LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND Ai THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBS'URFAGE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
DEPTH
IN
FEET
,... 30
SAMPLE
NO.
>-(.!) o -l o :::t: 5
~
SB8-6 I. ". -l.': .'.
~ 32 -
ffi ~ :::c SOIL Cl CLASS
(Uses)
z ::;:)
Cl 0:: (.!)
M~/CL
BORING SB 8
ELEV. (MSL.) _' _l=l;..o..O __ DATE COMPLETED
EQUIPMENT 1RA 300
MATERIAL DESCRIPTION
Firm, moist, light olive gray, Sandy
SILTSTONE/CLAYSTONE, intensly weathered
11/16/99
11
-
-f-W-J:"w:.t..'t-+---t - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --/----/---/----i
~ 34 -Very stiff, moist, olive black, plastic CLAY. r I -~ -SB8-7 I~ CH
moderately weathered
~. 18
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r 36
BORING TERMINATED AT 36 FEET
Figure A-51, Log of Boring SB 8 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ,
iJ ... CHUNK SAMPLE ~ ••• WAtER TABLE OR SEEPAGE =
NOTE: THE ,LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC.BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: BORING SB 9 >-LLI ZLIJ""' >-,..., (!) I-°u' 1-,..., LIJ~ 0 <J: DEPTH -' :I SOIL H:zl-H, 0:: ......
IN SAMPLE 0 0 CLASS I-<J:LL. CJ)LL. :::Jf-
NO. :I: :z ELEV. (MSL.) 134 DATE COMPLETED 11/16/99 <I: I-"-[E. ' I-z I-:::J Q::CJ)CJ) 0': CJ)LIJ FEET H 0 (USCS) I-H:I Hf--' 0:: EQUIPMENT
1.LICJ)o >-a.. Oz IRA 300 zLIJ-' (!) lfo::S 0::"'" ::2::0
0 u
MATERIAL DESCRIPTION
0 · · ..
I--ALLUVIUM I--Stiff, dry, dark yellowish-brown,-Sandy SILT
I-2 --I-. ---I--. -!---I-4 ----
I--r c--
S139-1 -ML 11
I-6 -c-
r· --c-· , ,
I-8 -· ---------------~-------------------~-----Medium dense to stiff, damp, grayish-orange, Sandy -I---c-. SILT, Silty, fme SAND
I-10 -I:: -SMIML I-SB9-2 16 100.7 11.7 -..
I---. ---
I-12 ----I----------------------------------------~ ~C · ;--Very stiff, damp, pale yellowish brown, Sandy I-14 --
v.~ ',/ SILT/CLAY
I-. -~ MLlCL -SB9-3 7 .~ 17
I-16 -· v ;--~i -Groundwater at 16 feet
I--V-'/ -
I-18 -~vbi I--v -
t--ll' . V-I-'\Y' -
I-20 -~B9-4 ·1 v-I/ I-'v -
17 bi -Becomes damp to moist, dark yellowish-brown, some 21
I--Vl( V-fme sand l-
I-22 -V I-v-I/
I--'V' bi I-17
r-24 -~~ V-I-V
I--1/ -1/
SB9-5 I :1· ."1-~MIML TERRACE DEPOSIT
13 .
r-26 -l~ -I I-Medium dense, moist to wet, dark yellowish-orange,
I--:'1 t·t-light olive-gray, grayish-orange, alternating 1-2 n thick f-
I-28 -:1-."1-beds of Silty SAND and SILT f-
I--l'-I I-:~ t 1-
Figure A-52, Log of Boring SB 9 LeG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPl.E (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ .... CHUNK SAMPl.E ~ .••• WATER TABLE· OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH· LOCATION. AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO. 06403-12-01
0:: BORING SB 9 >-Ul ZlLI'" >-'" (!) I-0 <I: °u· 1-"" Ul~ DEPTH ...I :I SOIL HZI-H • 0::"'"
,IN SAMPLE 0 Cl CLASS I-<ell. (/)ll. ::::ll-
NO. :::t: Z ELEV. (MSL.) 134 DATE COMPLETED ,11/16/99 ~I-ti; Z. I-z I-::::l UlU FEET (USCS) 'I-OO:I Cl • ~UJ' , H 0 UlHO ...I 0:: EQUIPMENT Z 00...1 >-0.. 01-
(!) IRA 300 UJlLI!Q 0:: 'V l::z 0 0..~'V Cl U
MATERIAL DESCRIPTION
,-30 SB9-6 7/ CL/CH 26 110.8 "20.7 Very stiff to hard, moist, mottled dark -
, \ yellowish-orange, pale olive, very pale orange, CLA Y I -Becomes olive black at 31 feet'
BORING TERMINATED AT 31 FEET
-
,
..
-
-
Figure A-53, 'Log of Boring SB ,9 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR SAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DR IVE SAMP,LE (UND I STURBED)
iJ .•. CHUNK SAMPLE ~ ... WATER TASLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC :BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PRUJbCT NO. 06403-12-01
.~ BORING SB 10 )-Z IJJ" )-" t!) 0(,.) • 1-" IJ.J~ 0 ~ DEPTH ...l SOIL HZI-H. 0::'""
IN SAMPLE 0 . ~ CLASS I-<t:u.. (/)u.. ~I-NO. ::I: ELEV. (MSL.) 118 DATE COMPLETED 11/16/99 «:1-' Z.
I-o::(/)(/) lJJu .ct)Z FEET H ~ (USCS) I-H::3: o. H LU
...l IJJ (/)0 )-0.. 01-EQUIPMENT 1RA300 zlJJ...l 0:: ...... L:z ~o::e 0 0 u
MATERIAL DESCRIPTION -0
--ALLUVIUM --Very stiff, damp, dark yellowish-brown, Sandy SILT, -2 -I' highly porous, roots :...
ML --... --4 -:..
~. -SBlO-1 . • -~1 1 n<: 0 . 1n_Q --------------------------------------. :'. --6 -. -Medium dense, damp, grayish-orange, poorly graded, -SP/SM ----fine to medium SAND/Silty SAND -. . . I
-8 -I-• --------------------------------------V --/VV Very stiff, damp to very moist, dark and moderate l-
/. I-V I~ yellowish-brown, alternating 6" to l' thick Sandy -10 -~BI0-2 [~ V' MLlCL SILTS/CLAYS I-~)' -Groundwater at 10 feet 20 --~ I-
-12 -V. ~v l-
V' ----------------------------------------oJ.l -14 -Loose to stiff, moist to wet, moderate l-T. 'f yellowish-brown, Silty, fine SAND, fine, Sandy SILT --~~1O-3 l:"l ~'I' ML/SM i-13 106.7 23.7 -16 -·1-l -
--"j". i 'f ,..
-18 -
:j t.,.
f:.:··:·.:~:? --/.: ~I~~~:~ TERRACE DEPOSIT -SW Dense, wet to saturated, grayish-orange, well graded,
-20 -fine to coarse SAND I--~R10-A. I f~': :~. :..:~ -Gravelly, clayey sand, mottled yellowi~h-n'-:lm,.e~ 42 --
I-22 -SANTIAGO FORMATION l-Very stiff, moist, light olive-gray, CLAYSTONE,
I--moderately weathered, carboriaie lined laminae I-
CL
I-24 -l-
I--SB10-5 I '-SOlS" 118.3 15.3 -Becomes very hard, damp, pale olive, slightly I-26 wp.Mhp.,-p.n "1. ir./soapy" texture /
BORING TERMINATED AT 26 FEET
Figure A-54, Log of Boring SB 10 LCG
SAMPLE SYMBOLS [J ...• SAMPLING UNSUCCESSFUL
!§§ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED),
i:I . .. CHUNK SAMPLE . ~ ••• WATER TABLE OR SEEPAGE
. NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC. BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURF.AC~ CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO
DEPTH
IN· . SAMPLE
NO:' FEET
'-0
--
-2 -
--
-4 -
--~Bl1-1 -6 -
--
-8 -
--
-10 -~Bl1-2
,.... -
~ 12 -
'--
-14 -
- -
-16 -
~Bl1-3
'--
-18 -
--
-20 -~Bl1-4 --
22 -
- -
I-24 -
I--~B11-5
I-26 -
06403-12-01
0:: >-UJ (!) l-° <I: ..l ::J: SOIL· ° 0 CLASS ::I: Z I-:J (US~S) H 0 ..l 0:: (!)
, ~,;, V V'
lI''/ 'v. 17 :/ ' v V'. /" 'V lI'~ ,/
~ v~
IV ML . ]-
l ' v' .v. ,,/ v. ~ :/
V~. ;:-. ,
V V. -,I
I~ v;-~L/CL
~ ~.;-
11" V. -,/ v.
v.'v :/
V· l' V-
I'll' -,/
11';-Iv.'
IV I( ;'
'V -1I-'/ ~v;-
t· t -•• j." :-~. or I ::t:~::r SM ::~ :~::f: ::t:~\o o :f o . 0 • 0 •• 0
r CH
BORING SB 11 ZIJJ'"' >-" Ou • 1-,", UJ~ Hzl-H • 0::'"' ~<I:~ ~u. F21-ELEV, (MSL.) 153 DATE COMPLETED 11/16/99 o::r.-Ul UJ " Z I-~::J:. oc..: UlUJ' HI-UJcnO >-0.. Oz EQUIPMENT mA300 zUJ..l UJo::a:l 0::'"" ~o a.. ...... 0 u
MATERIAL DESCRIPTION
ALLUVIUM i-
Stiff, dry, pale yellowish-brown, mottled dark
yellowish-orange, Sandy, Clayey SILT, highly porous, . i-
scattered white soil carbonate l-
r-
-~ 9 -
~
--------------------------------------
Very stiff, damp, pale yello'wish-brown, Sandy -SILT/CLAY, slightly porous
~ 25 116.5 17.2 -
-
-
l-
I-25 116.5 17.2
I-
I-
1-.
SANTIAGO FORMATION I-
Very dense, damp, grayish-orange, mottled olives, I-
Silty, fme to coarse SANDSTONE, moderately 50/4,5" 111.2 11.5
weathered i-
-Cemented r-
--------------------------------------
Hard, dry, olive, mottled browns, CLAYSTONE, -slightly to moderately weathered . -35 -
BORING TERMINATED AT 26.5 FEET
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I ··Figure A-55, Log of Boring SB 11 LCG
I
SAMPLE SYMBOLS . D ... SAMPLlNGUNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .: •• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ .... WATER TABLE OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT-THE SPEClH,lC BORING OR TRENCH LQCATION AND AT THE.
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTH~R LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: TRENCH t 1 >-UJ zw~ >-~ (D I-0 <I: , 0c.J~ 1-", UJ"': DEPTH ...J 3 SOIL Hzl-H. 0::""
IN SAMPLE 0 0 CLASS I-<t:u. (J)u. :::lI-Z z ELEV. (MSL.) 125 DATE COMPLETED 11/3/99 <I: I-"-z. NO. I-:::l O::(J)(J) We,,)' I-z ,FEET H 0 (USCS) I-3 '0 • (J)UJ wHo HI-...J 0:: EQUIPMENT TRACKHOE JD 555 2411 z (J)...J >-a.. Oz t!) wWco 0::"" l:o a.C:::"" 0' u
MATERIAL DESCRIPTION
I-0 ~ I--COLLUVIUM r CL Very stiff, dry, brownish black, Sandy CI:AY
I-2 -r
I--·7 · · . . · ALLUVIUM r 4 --l-. · Very stiff, dry, light olive brown to dusky yellow,
I--Sandy SILT with lenses of brownish black clay up I-Tl-l · ML
I-6 --to 2 feet thick, highly porous, abundant soil · . carbonate I--· I--· I-, . -8 -· l-· · . --· l-· · -10 -. l-.
· --· ~ 't TI-2 ... SM · .. SANTIAGO FORMATION 12 -.:.:j:-. ;-::t:{t. Dense, dry, dusky yellow to dark yellowish orange, · .. Silty, fine to medium SANDSTONE "-./
TRENCH TERMINATED AT 13 FEET
Figure A-56, Log of Trench T 1 LCG
, SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
~ TRENCH T 2 >-UI ZIJJ""' >-1"\ t!J I-0 <I: °u' 1-"" UI~ DEPTH ..J :3: SOIL Hzl-H • 0::'""
IN SAMPLE 0 Cl CLASS I-<I;u.. CIlu.. ~I-NO. :::x:: z ELEV. (MSL.) 105 DATE COMPLETED 11/3/99 <I: I-"-Z • I-z I-:::l ~(I)C/) LllU FEET H 0 (USCS) I--H:3: c. C/)lJJ HI-..J ~ UI (1)0 >-0.. Oz EQUIPMENT TRACKHOE JD 5552411 Z 1JJ...l (!) ·UI ~a:l 0::'-" 1:0 0.. v C U
. ,. MATERIAL DESCRIPTION -0 'V .
-V·. /' COLLUVIUM --v r-
v.~ ,/ Very stiff, dry, brownish black, Sandy -2 -;i'v SILT ICLA Y, some flne grained sand, highly -~V porous, abundant sea shells -, -V·. /" CL '-
·V -4' -V.V / :-
;i' , --I?'v :-
-6 -~V /' -v.. ,/ --
I) f :-8 -Very stiff, dry, light to moderate'olive brown, -MH SILT, some fme sand, highly porous
:--I); -,-
'-10 -:·f·~·:t· SM ··f SANTIAGO FORMATION ' :--:~:l::t: -Dense, dry, dusky yellow to dark yellowish orange,
;-12 ". ,. "fI" SiLty, fme to medium SANDSTONE /
TRENCH TERMINATED AT 12 FEET
-
..
Figure A-57, Log of Trench T 2 LCG
,SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE. SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :Y: ••• WATER' TABLE OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE,SPEC'IF.IC BOR-ING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFA~E CONDITIONS AT OTHER LOCATIONS AND TIMES.
,
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I PROJECT NO.
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DEPTH
.. IN
FEET
-0
-
-2
-
-4
-
-6
SAMPLE'
NO.
..
-.
-T3.-1 -
-
-
06403-12-01
a:: TRENCH T 3 >-lLl (!) I-a <I: ..J :l: SOIL· a Cl CLASS :::t: Z ELEV. (MSL.) 135 DATE COMPLETED I-::J H a (USCS)
..J e::: t!) EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
~ ~ ~ [1/ CL COLLUVIUM
v/ Stiff, dry, dark yellowish brown, Silty CLAY, . ·:f , some fme sand, highly porous, abundant rootlets ML . .' SANTIAGO FORMATION ... Medium stiff to stiff, damp, mottled oranges, .. oUves and browns, Sandy SILTSTONE, abundant
rootlets and S9il carbonate, highly weathered ..
TRENCH TERMINATEP AT 6 FEET
-
Figure A-58, Log of Trench T 3
ZUJr. >-1"\ au • I-r. UJ~ HZI-H • e:::'"" I-<J:ll.. CJ)ll.. ::JI-11/3/99 <I: 1-' z • I-z . e::: (/) CJ) lLlu I-H :l: Cl .. (/)UJ HI-UJ(/)a >-0-Oz zUJ-I ~o::e .0:: ...... 1:0
Cl U
l-
/
l-
I-
l-
.
-
LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ '" DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE ,SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE .!'.: ... WATER TABLE OR SEEPAGE -=-
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE ~ONDtTIONS· AT OTHER ·LOCATIONS AND. TIMES.
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I PROJECTNO 06403-12-01
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TRENCH T 4 >-Zw'" >-"'. C,!) °u • 1-", IJ..I~ 0 DEPTH -I SOIL Hzl-H. 0:: ..... SAMPLE 0 I-<t:u. C/)u. ;:)1-IN :I: CLASS ELEV. (MSL.) 190 DATE COMPLETED 11/3/99 <I: 1-' Z. 1-2 NO. I-O::cnC/l UJu OOIJ..l FEET H (USCS) I-H 3 c. HI-UJ(t)O >-0.. -I. EQUIPMENT TRACKHOE JD 555 24" Zw-l °2 ~e:::e 0:: ..... I:o
C u
MATERIAL DESCRIPTION
I-0 ~ I--CL COLLUVIUM -Very stiff, dry, pale yellowish brown, CLAY.
I-2 -"-some fme sand ' /
I--SANTIAGO FORMATION -Stiff, damp, greenish gray, CLAYSTONE with fme
I-4 -T4-1 CL SAND, fractured, random orientations~ moderately: -
I--weathered, massive -
I-6 -l-
I---Less fractUred, slightly weathered l-
i-8 -l-
I---Contact undulatory, but generally horizontal, l-
i-10 -poorly defined Sandy CLAYSTONE . l-
i-
TRENCH TERMINATED AT 11 FEET
.
Figure A-59, Log of Trench T 4 lCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ' ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0::: TRENCH T 5 >-LLI ZUJ"'" >-"'" t!:l ..... 0(.) •
....."'" LLI~ 0 <I: DEPTH ..J' :3: SOIL HZ ..... H • 0:::'-" SAMPLE 0 0 CLASS ..... <l:1J.. (J)IJ.. :::J ..... IN NO. ::I: z ELEV. (MSL.) 165 DATE COMPLETED 11/3/99 <1:1-' z • ..... z ..... :::J 0:::Cf)CJ) LLlu (J)LLI FEET H 0 (USCS) ..... H:3: o • H ..... ..J 0::: UJenO >-0-Oz EQUIPMENT TRACKHOE JD 55524" zUJ..J t!:l ~o:::e 0:::'-" l:o
0 U -
MATERIAL DESCRIPTION
f-0 ~~ f-. -COlLUVIUM -~~~ Stiff, dry, pale to dark yellowish brown, Silty
I-2 -~~~ CLAY, some flne to medium sand -CL
I--//V -~~~ I-4 -~~~ -
-I--::f:1::t
I-6 -·t "f SANTIAGO FORMATION -· .. Loose, dry, very pale orange, Silty, fine to medium .... ~ ....
SM I--::f:j::f. SANDSTONE, weathered, approximately -
't "f horizontal, undulatory lower contact f-g ...: · , . :-... :=t:~: :~: --· .... --------------------------------------
1111111 MH Stiff, dry to damp, light olive-gray SILTSTONE, -10 intensly fractured, moderately weathered
TRENCH TERMINATED AT 10 FEET
-
.
Figure A-60, Log of Trench T 5 LCG
SAMPLE SYMBOLS [] '" SAMPLING UNSUCCESSFUL
~ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PEN~TRATION TEST .... DRIVE SAMPLE CUNDISTURB'ED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE ~OND~TIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO OI'iam,.l ?-Ot
I'
TRENCH T 6 >-Z'Ull"'> >-. I"'> t!) °u . 1-1"'> w~ 0 DEPTH -I SOIL ~zt H, e::V' SAMPLE 0 CLASS (I:<C, (1)LI.. :::ll-IN Z, NO, ::t: ELEV. (MSL.) 230 DATE COMPLETED ' 11/3/99 e::1-(J) wI:..) I-z FEET I:i (USCS) I-CI):J: 0, cnUJ WHO HI--I EQUIPMENT TRACKHOE JD 555 24" Zcn-l >-0.. Oz wUlm 0::'"' 1:0 0..C::: ..... 0 I:..)
MATERIAL DESCR,IPTION -0 / ),1 CLIML /v LANDSLIDE DEBRIS --~v ~ Stiff, dry, pale yellowish brown, SILT/CLAY, r )' I I -2 -,y~ \ some fine and medium sand, abundant rootlets, I ~
I porous I - -v~ .-
" __________________________________ t
"--
VI// ML Stiff, dry, greenish gray to grayish olive, very -4 -Clayey SILT; weathered fractured, abundant -~/ -calcium sulfate and carbonate, mottled dark --~ yellowish scattered roots
-6 -~ :Grooved"slip plane, N80E, 45 .. N. -~ CL SANTIAGO FORMATION - -Hard, damp, medium to light olive, very 'Silty -
I
-8 CLAYSTONE
-Thin calcium sulfate (gypsum) coatings along
blocky fractures
TRENCH TERMINATED AT 8 FEET
-
-
Figure A-61, Log of Trench T 6 LCG
SAMPLE SYMBOLS o .. , SAMPLING UNSUCCESSfUL IJ , .. STANDARD PENETRATION TEST ., •• DRIVE SAMPlE (UNDISTURBED).
~ ,., DISTURBED OR BAG SAMPLE iiJ .. ,' CHUNK SAMPLE J: ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF,SUBSURFAcE CONDITIONS AT OTHER LOCATIONS AN~ TIMES.
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PROJEC::TNO., Ot'\d01-12-01
II
TRENCH T 7 >-Zw" > " t!) °u' 1-", I.LI~ 0, DEPTH -I SOIL HZI-H. 0:::'"'
IN SAMPLE 0 CLASS ~<I:~ (l)lJ.. ~I-NO. Z ELEV. (MSL.) 210 DATE COMPLETED 11/3/99 0:::1-(1) z. """'z Wu FEET I--(USCS) I--~:I O. (J)UJ H HI---I l.LIenO >0.. Oz EQUIPMENT TRACKHOE JD 555 24" Zw-l L1J c:: a:l 0:::'" :E:o
0.. '"' 0 u
MATERIAL DESCRIPTION
r-0 ~Vv/ r--ML/CL COlLUVIUM -r/V~ Stiff," dry, moderate yellowish brown, CLAY/SILT,
I-2 -yYV "-abundant rootlets /
I--LANDSLIDE DEBRIS -1/ /i'V Stiff, dry to damp, light olive gray to greenish'
r-4 -7VV gray Sandy SILT/CLAY, massive, moderately to -
I--y,vl/ highly fractured and weathered, "punky"/mottled -appearance with "blebs" of Sandy material, porous,
I-6 -1/ abun~t soil carbonate and sulfate (gypsum) I-v.1. . .Y
f--7[,X iML/CI:. I-
r-8 -)'y~ f-
--V V -Abundant randomly-oriented fracture:s and clay r-~v~ seams -10 -vV' I-
--y'V r V.vV -12 -~/' 'r-
-V y'V r-
-14 -/·v -Approx.. 2-3 feet transition to near-horizontal
II contact - -r'T -MT SANTIAGO FORMATION r-
16 -Hard, damp'to moist, olive to brown, Silty "-
CLAYSTONE
t-"--Massive to horizontal /
TRENCH TERMINATED AT 17 FEET
--
Figure A-62, Log of Trench T 7 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFlC BORING DR TRENCH LOCATION AND AT THE'
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAcE' CONDITIONS AT OTHER LOCATIONS AND TIMES.
I.
I PROJECT NO 06403-12-01
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I
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I
I
I
I'
I
DEPTH
IN
FEET
I-0
I--
1-. 2 -
I-
t-4 -
I--
I-6 -
-
SAMPLE
NO.
>-(!)
0 ...J 0 :::I: I-H ...J
' ..
0:: UI l-<I: ::3: SOIL a CLASS z ::l .~ (USCS)
(!)
ML
MLlCL
TRENCH T 8
ELEV. (MSL.) 250 DATE· COMPLETED
EQUIPMENT TRACKHOE JD 55524"
MATERIAL DESCRIPTION
COLLUVIUM
Stiff, dry, pale yellowish brown, SILT, some flne
sand, rootlets, soil carbonate
SANTIAGO FORMATION
Stiff, dry, light brown, light olive gray, light olive
brown, predominantly Sanely -
SILTSTONE/CLAYSTONE, beds less than 114"
thick, Silty SANDSTONE interbedded; beds
generally horizontal in places
TRENCH TERMINATED AT 7 FEET
Figure A-63, Log of Trench T 8.
~UJ~ >-,..,
I-,.., lIJ'~ HUI-I-ZlL. H, 0:::"'"
<I: <1:, OOlL. ::ll-.Z J1/3/99 0::1-00 lIJ' t;z. I-00::3: . au IJJHO . HUI
>-a.. 01-zOO...J l:z lIJlLIlQ 0::"'" 0 a.. 0:::"", a u
-
-
-
-
-
LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iiJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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il
,I
PROJECT NO. 06403-12-01
~ TRENCH T 9 >-IJJ ~L.L1~ >-" (!) l-I-" LlJN 0 <I: HUI--DEPTH ..J :::I SOIL 1-2 u. H. ~'V
IN SAMPLE 0 0 CLASS <I: <I: " CIlu. ::ll-NO. :I: z ELEV. (MSL.) 155 DATE COMPLETED 11/3/99 0:::: I-C/) ~. I-Z FEET I-::l (USCS) I-CI):::I 0': C/)IJJ H 0 WHo HI-..J ~ EQUIPMENT TRACKHOE JD 555 24" z CI)..J >-c.. oz (!) wL.L1 co ~'V 1:0 c.. 0::...., 0 u
MATERIAL DESCRIPTION
f-0 ) I /( ML TOPSOll. f--"f"'r Stiff, dry, moderate yellowish brown, SILT,
f-2 -~ ~:f:j:~f: abundant rootlets -T9-1 SM
f--':f:~:t SANTIAGO FORMATION -. .. ::f:~::~ Medium dense, dry, yellowish gray, fme, Silty
I-4 -SANDSTONE, slightly weathered, random f-T9-2 ~ ::C:4::~~ fractures less than 2" apart, carbonate lined
-Horizontal contact at 3 feet
-Becomes very pale orange, Silty, fine to medium
SANDSTONE
TRENCH TERMINATED AT 5 FEET
-
I
Figure A-64, Log of Trench T 9 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =' . .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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II
PROJECT NO
DEPTH
IN
FEET
f-0
f--
I-2 -
r--
r-4 -
r--
r-6 -
I--
r-8
SAMPLE
NO.
TlO-1
06403-12-01
>-tD o --I o ::I: I-H --I
0:: I.LJ I-~ SOIL
§E CLASS
:::J o
0:: (..!)
(Uses)
SC
MLISM
TRENCH T 10
ELEV. (MSL.) -----=2=6c.;:..O __ DATE COMPLETED
EQUIPMENT TRACKHOE JD 55524"
MATERIAL DESCRIPTION
TOPSOlllCOLL~
Stiff, moderate yellowish brown, Clayey, fIne to
medium SAND
SANTIAGO FORMATION
Stiff, dry to damp, fme, Sandy SILTSTONE/Silty
SANDSTONE, ~pper 6" cemented and fossiliferous;
underlain by 6" thick, dark yellowish orange, bed
dipping approx. N-S/5W, beds below are very pale
orange and between 6" and l' thick, moderately
weathered, soil carbonate
TRENCH TERMINATED AT 8 FEET
Figure A-65, Log of Trench T 10
1113/99
-
-
-
-
Lce
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE CUND ISTURBED)
iJ . .. CHUNK SAMPLE :J:: •• ; WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECTNO 06403-12-01
I
I
I
I
I
I
I
I
I
I
I
I
I
I-
I
I
I
DEPTH
IN
FEET
r-0
--
-2 -
~ -
-4 -
--
SAMPLE
NO.
0:: lJJ I-~ SOIL ~ CLASS
::J o 0:: c.!)
(Uses)
SC
ML/CL
TRENCH TIl
ELEV. (MSL.)~2=2=-5 __ DATECOMPLETED -11/3/99
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
TOPSOIL
Stiff, dry, moderate yellowish brown, Clayey, fme -
~ to medium SAND ~~-~~~~~=---------------------~/ SANTIAGO FORMATION
Stiff, damp, light olive gray,
SILTSTONE/CLAYSTONE, highly weathered,
grades downward to fine, Silty SAND below 4 feet
-
-
-
-
--6 -f.Hl.-J-Y.-!Y--f-----+ .. -Bedding plane/contact stained dark yellowish . +--__ -+-__ -1-_-1 ::~:j::~: '. __ ~~ge_ dlp_ ~£r~~ ~~~V{/l~SJI _______________ ,' .:.. --
-8 -
"--
"-10 -
--
'-12
::f:r~: Medium dense, dry, very pale orange, fme tq ::f:.::f. medium Silty SANDSTONE
::~:j:;(: • ~ 1 .(. ':t:~:'t ::~:l::r: .·~"(.r" ·:r:~·!t·
SM
-Bedding plane dips parallel to above
TRENCH TERMINATED AT 12 FEET
Figure A-66, Log of Trench T 11
-
-
-
-
LCG
SAMPLE SYMBOLS [] .,. SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DR-IVE SAMPLE (UND ISTURBED)
iiJ ... CHUNK SAMPLE , ••• WATER TABLE OR SEEPAGE
N~TE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAC; CONDITIONS AT OTHE~ LOCATIONS AND TIMES.
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PROJECT NO 06403-1?-Ol -
Q:: TRENCH T 12 >-Ul ZlJJ~ >-' ~ t!) I-0 <I: °u . 1-..--w:-.: DEPTH -l 3: SOIL HzI-H. 0::'-'
IN SAMPLE 0 0 CLASS 1-.a::lJ..' (J)l.1.. ::ll-NO. ::c Z ELEV. (MSL.) 165 DATE COMPLETED 11/3/99 <1:1-' z. I-z I-:::l O:::CI)CIl UlU FEET H 0 (USCS) I-H3: o • (J)Ul HI--l Q:: EQUIPMENT
wCl)o >-0.. Oz t!) TRACKHOE JD 55524" Z lJJ-l 0:::'-' I:o !fe:::S 0 u
MATERIAL DESCRIPTION -0 ~/ -COLLUVIUM -'// / ...
/ Stiff, dry, brownish black, SILT/CLAY, abundant -2 -~; !/ ~L/CL rootlets below 3 feet, abundant soil carbonate, :-
",/ V becomes dusky yellow, "punky ", transitioning to I--/" /1/ formational below 5 feet :-
I-4 -// V --:// :/
I--. ,
I-6 -SANTIAGO FORMATION -
-. Stiff, dry to damp, light olive gray, Sandy
I--SILTSTONE, massive, scattered, random, f-
f-8 -discontinuous closed joints f-· . ML
I--l-
f-10 -.. l-· .
I--l-
I-12 · .
TRENCH TERMINATED AT 12 FEET
Figure A-67, Log of Trench T 12 LCt
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TE~T II '" DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• wiTER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING ,OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
~
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I
I PROJECTNO 06403-12-01
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I·
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I
·1
0:: TRENCH T13 >-UJ ZLtJ'"' >-'"' CD l-Ou • 1-,.., UJ~ 0 <I: DEPTH ..J :3: SOIL HZr-H. 0::'"'
IN SAMPLE 0 Cl CLASS , I-<r;L1. CIll:L.. ::::ll-NO. ::c-Z ELEV. (MSL.) 140 DATE COMPLETED 11/3/99 <1:1-' z. I-z I-::::l O::enCl) UJ u FEET (USCS) I-H 3 c. cnUJ H 0 HI-..J 0:: EQUIPMENT UJeno >-0-Oz TRACKHOE JD 555 24" z LtJ..J CD ~o::e3 0::'"" I:o
C u
MATERIAL DESCRIPTION
f-a ~v i--COLLUVIUM i-)/ ~ ,~L/ML Stiff, dry, brownish black, SILT/CLA Y, fine roots
I-2 -~~ ./ l-
i--r)' V I-/1/
i-4 -~V Y -Becomes dusky yellow, "punky", abundant soil -V / carbonate -I--
I-6 -:-SANTIAGO FORMATION -CL Stiff, dry to damp, light olive gray (mottled dark
i-1 -yellowish orange to' 7 feet) Sandy CLAYSTONE, -
massive, scattered, random, discontinuous closed ,
i-8 -joints -
i-
TRENCH TERMINATED AT 9 FEET
-
Figure A-68, Log of Trench T 13 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
!li§ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAC; CONDITIONs AT OTHER LOCATIONS AND TIMES.
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I
PROJECT NO. 06403-12-01
i~ TRENCH T14 >-z Ll.I ..... >-,..., t!) °u·· 1-.... LJJ~ 0 DEPTH ..J SOIL HZI-H. 0:: .....
SAMPLE 0 CLASS ~<I:~ (J)LL. =>1-IN ::c ELEV. (MSL.) 95 DATE COMPLETED 11/3/99 0::1-(J) z. I-z NO. i wu FEET I-(USCS) 1-(1)::3: Cl • (J)LLJ H wHo HI-..J EQUIPMENT TRACKHOE JD 555 24" ZCll..J >-a.. Oz wLl.laJ 0::'"' :t:o a.. 0:::"" Cl u
MATERIAL DESCRIPTION -0 VI? --COLLUVIUM I-v.V,/ It\1L1CL Stiff, dry to damp, dark yellowish brown, Sandy -2 -~V;l SILT/CLAY I-
--v// I-
-4 -~,t ,/ -Becomes moist, medium stiff I-
~y ;I -- -r· / I-
-6 -V 1/ l-II
:--1/../,/ Wet, soft I-
;-8 -Po' v I-V/I/ ,.. -v.V,/ r
,.. 10 -ltV;", -Becomes saturated, very soft I-
~ -)1_"/
c... 12 -fI CH . SANTIAGO FORMATION I-... Firm, wet to satura~;~Jr~,e olive CLAYSTONE,
c... = highly weathered, II . /
TRENCH TERMINATED AT 13 FEET
STANDING WATER AT 13 FEET
CAVING BELOW 8 FEET
,
-
I
Figure A-69, Log of Trench T 14 LCG.
I
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE ij ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC ,BORING OR TRENCH 'LOGATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I
....
PROJECT NO. 06403-12-01
0:: TRENCH T 15 >-UJ tiui~ >-"'" t!) I-,I-"", UJ~ 0 <I: HUI-DEPTH -l ::I SOIL I-Zu. H. 0::"" SAMPLE 0 0 CLASS <I:~' ' (/)1.1. :::ll-'IN ::J: z ELEV. (MSL.) 115 DATE COMPLETED 11/3/99 z . I-Z NO. 0::: '(/) UJu ~ :::l (USCS) I-Ul::I UlUi FEET 0 UJHO o • HI--l 0:: ZUl-l a.. Oz t!) EQUIPMENT TRACKHOE JD 555 24" UJUJa:) ~V' :E:o a., 0:::"" 0 U
MATERIAL DESCRIPTION
'-0
U. :--COLLUVIUM -
CL
Stiff, humid, dark gray-brown, Sandy CLAY, with -2 -some silt -
;--« -Very moist, soft, with discontinuous slickensided I-
;-4 -· "/ clay seams inclined out-of-slope 10 -20 degrees .• ~ .'\, 't . " with calcium carbonate
;--::t:l::( SANTIAGO FORMATION 1-. · , . SM . i' to
;-6 -:=f: ::f Very dense, damp, light tan-brown, Silty, fine l-· .~. SANDSTONE :t .:( '--.: :1:' . -B~dding laminated, 2-4" beds at N30W, lOSW I-
TRENCH TERMINATED AT 7.5 FEET
Figure A~70, Log of Trench T 15 LC~
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
'0
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,I
I
PROJECT NO 06403-12-01
0:: TRENCH T 16 )0-w ,ZLLI"" )0-" t!) I-/ °u· 1-"" LLI~ 0 <I: DEPTH ...J :3: SOIL HZI-H. 0:: ..... SAMPLE 0 Cl CLASS I-<tu. ~u. ::lJ-IN NO. Z Z ELEV. (MSL.) 120 DATE COMPLETED 11/3/99 <I: I-" . IJ.I • I-z I-::l O::cnCf) C U C/)I.JJ FEET H 0 (USCS) GjH-~ . HJ-...J 0:: EQUIPMENT z·ffi...J )o-Cl. 0
(,!) TRACKHOE JD 55524" e::v .. ;E:z, ~o::e 0
'-c u
MATERIAL DESCRIPTION
I-0 fI/ I--CL TOPSOIL I-
Stiff, humid, dark gray-brown,' Sandy CLAY
I-2 -
I--SANTIAGO FORMATION l-Very stiff, moist, olive-brown, very Silty
I-4 -CLAYSTONE '-
~ CL --~ I-
-6 -~ -Becomes hard ,l-
I--~ --Near-horizontal contact ~ ...... ,. .,
.",".' "to SP ----------------------------------_.
f-8 ........ ' Dense, damp, light tan, fine SANDSTONE, I--to ,. " ,. ,. •••••• to' non-cohesive when disturbed ,. to ,. ,. ,. ,. ,. ,.
I-.. ,. .. ,. -Slightly cemented "-/'
TRENCH TERMINATED AT 9 FEET
-
Figure A-71, Log of Trench T 16 LCG
SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE-(UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE. iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SE~PAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVe OF SUBSURFACE CONDITIONS AT. OTHER LOCATIONS AND TIMES.
I·
I PROJECT NO 06403-12-01
I·
e::: >-LU t!) I-
DEPTH 0 <I: SOIL ....I ::I
IN SAMPLE 0 0 CLASS NO. ::I: z
FEET t:i. ::J (USCS) I 0 ....I e::: t!)
TRENCH T17 zw ..... >-..... °u . 1-..... . LU:-': Hzl-H. e:::"" I-<J:LL. (J)LI.. :;:)1-DATE COMPLETED 11/3/99 ~'I-~ z. LUU I-z I-en:3:' c::l. (J)LU LUHO HI-
TRACKHOE JD 55524" zen....l >-0.. Oz LUwCO 0::'"" 1:0 0..0:::"" 0 U
ELEV. (MSL.) -.....;1=3.;;.,5 __
EQUIPMENT
MATERIAL DESCRIPTION I ~ 0
I--COllUVIUM -
I
I
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I
I.
I
I
I
I
I
,I
I
I
r 2 -
I--CL
I-4 -
r -
- 6 -
--ML/CL
- 8 -
-
Soft to stiff, moist, dark brown, Sandy CLAY
:. With some silt
-Becomes very moist
SANTIAGO FORMATION
Very stiff to hard, moist, olive-brown, very
Clayey SILTSTONE, moderately weathered and
fractured, blocky ,
-Bedding N-S, lOW (hematitic layer)
TRENCH TERMiNATED AT 9 FEET
Figure A-72, Log of Trench T 17
-
-
-
-
I-
LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL I] ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
'NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH' LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATioNS AND TIMES.
-----
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PROJECT NO. 06403-12-01 I
Q:: TRENCH T1S I I )0-w Z Ul'"' > '"' C,!) l-Ou • I-w~ ° <I: H'"' DEPTH -I ::I SOIL HZI-Q::'"' SAMPLE I-<t:u.. en·
IN ° Cl CLASS zu.. ::JI-
NO. ::J: z ELEV. (MSL.) 145 DATE COMPLETED 11/4/99 <1:1-' w· I-Z FEET I-::J (USCS) Q::cnen oU en W I H ° I-H::I Wcn O >0.: HI--I Q:: EQUIPMENT Oz C,!) TRACKHOE JD 555 24" ZUl-l Q:: ...... E:o ~~S 0 u
I MATERIAL DESCRIPTION
I-0 ~ .
I--CL TOPSOIL -Stiff, humid, dark brown, Sandy CLA Y
I I-2 -
•
r -SANTIAGO FORMATION -Hard, damp, olive-gray. Silty CLAYSTONE
I-4 --Massive, with blocky fractures l-
I I--II CL -.
I-6 --
I I-,
TRENCH TERMINATED AT 7 FEET
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I
Figlire A-73, Log of Trench T 18 I
I Lee
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL '1] ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
I NOTE: THE LOG OF SUBSURFACE COND ITIONS SHOWN HEREON APPLIES ONLY AT THE SPECI FIC BORING OR TRENCH LOCATION AND" AT THE· .
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAC~ CONDITIONS AT OTHER LocATIONS AND TIMES. .,
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PROJECT NO .. 06403-12-01
0:: TRENCH T19 >-lJJ Zw""' >-" t!) l-ou· 1-..... I.LI~ ° <I: DEPTH -I :3: SOIL Hzl-H • 0::"" SAMPLE ° ·0 I-<J:lL. (l)1J.. ::;)1-IN :I: z CLASS ELEV. (MSL.) 160 DATE COMPLETED 11/4/99 <I: I-'\. z. I-z NO. I-:::l O:::(I)ctl l.LIu .~LIJ FEET H ° (USCS) I-H:3: c.
-I 0:: UJ (1)0 >-0.. 01-
t!) EQUIPMENT TRACKHOE JD 555 24" zUJ-I o::-.J ~5 ~o::e 0 u
MATERIAL DESCRIPTIO~
0 I-~ I--COLLUVIUM I-
Soft to stiff, very moist, dark brown Sandy CLAY,
I-2 --with discontinuous random slickensided soil f-
I--~ fractures; dipping 30-45 degrees out-of-slope I-·CL (slope creep?)
I-4 -f-
-
I--.~ l-
I-6 -f-
-:~/ . -1-2' transition to massive, approx. horizontal B CL contact :
8 -SANTIAGO FORMATION· I-
Stiff to very stiff, very moist, olive brown, Sandy
CLAYSTONE
-Very weathered and fractured
TRENCH TERMINATED AT 9 FEET
-
Figure A-74, Log of Trench T 19 LCG .
-
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE . =
NOTE: THE 'LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAGE CONDITIONS AT OTHER LOCATIONS AND' TIMES.
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PROJECT NO 06403-12-01
0:: TRENCH T20 ,.. LLl ZLLl""' ,.. " C.!) I-°u' 1-,,", LLl~ 0 <I: DEPTH ..J ::::I SOIL HZI-H. 0::'"'
IN SAMPLE 0 C CL'ASS ~<I:~ (/)u. :::ll-NO. Z z ELEV. (MSL.) 160 DATE COMPLETED 11/4/99 ' 0:: I-(/) Z. t;z I-:::l 1-CJ)::r: LLlU FEET H 0 (USCS) WHO c . H UJ
..J 0:: EQUIPMENT TRACKHOE JD 555 24" zffi..J ,..0.. '01-
C.!) ~o::e 0::'"' :Ce5' c u
MATERIAL DESCRIPTION -0 ~ - -
COLLUVIUM '-: Stiff, moist, dark brown, Sandy CLAY -2 --
-~ -
4 -CL -
-~ -Becomes soft, very moist -
6 --
I---\
I-8 -'./ -6-12 n transition to irregular, near-horizontal ~ contact
I--CL SANTIAGO FORMATION l-
Very stiff, very moist, olive brown, Silty
CLAYSTONE (very weathered) -TRENCH TERMINATED AT 9.5 FEET
-
Figure A-75, Log .of Trench T 20 LtG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION 'leST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :r: ... WATER TABLE OR SEEPAGE =
, . ,NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE,
DATe INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIve OF SUBSURFAce CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO.
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DEPTH
IN
FEET
0
2
4
6
8
10
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SAMPLE
NO.
06403-12-01
0:: >-UJ t!) I-0 <I: ..J :I SOIL 0 0 CLASS ::r: z ..... :J (USCS) H· 0 ..J 0:: t!)
~j ~ ~j ~ // ~ ~j ~ CL
~~ ~ ~ /
~L-CL
TRENCH 'T21
ELEV. (MSL.) 117 DATE COMPLETED
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
COLLUVIUM
Stiff, moist, dark gray-brown, Silty CLAY, with
some sand
-Becomes soft
-Irregular contact
SANTIAGO FORMATION
Stiff to very stiff, moist, light olive to brown, very
Clayey SILTSTONE to CLAYSTONE
-Very weathered
TRENCH TERMINATED AT 10 FEET
Figure A-76, Log of Trench T 21
zUJ ..... >-..... °u . 1-..... UJ~ HZI-H. 0:: v I-<I:LL. Cl)LL. :::JI-11/4/99 <I: I-" Z. . t;z 0:: CI) CI) l.IJu I-H:I 0. H UJ I.IJCI)o >-0.. 01-zUJ-l 0:: v ,;:Z UJ o::aJ 0 a.. v 0 u
-
-
-
I-
.1-
I-
i-
1-'
LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNO ISTURBED)
iJ . .. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE·REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I' PROJECT NO 06403-12-01
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0:::. TRENCH T 22 ;< >-llJ ZUlr->-,.... (.!) 1-. 0 <I: °u . I-r-Ul~ DEPTH ..J :3: SOIL Hzl-H. 0::"" IN . .SAMPLE 0 0 CLASS I-<I:lL. CIllL. .::::ll-NO. :::c z ELEV. (MSL.) 113 DATE COMPLETED 11/4/.99 <I: I-"-Z. I-z I-::::l O::CI)cn UlU FEET H ° (USCS) I-H::3: o. cn w HI-...J 0::: UlcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...J (.!) g: c::e3 0:::'"' ::E:o
0 CJ
MATERIAL DESCRIPTION
r-0 -
-~~ ~ ALLUVIUM -r-~~ ~ Stiff to very stiff, damp, dark gray-brown, Sandy
r-2 -~~ ~ CLAY, with some silt, root-voids, rootlets, -
r-' -~~ ~ burrows --Becomes massive
I-4 -~t/ ~ CL -~~ ~ -r--V/ ~ -
r 6 -~~ ~ I-
r -~C I-~~ ~ \
r 8 -~~ ~ I-
r--/ -Becomes very stiff, moist, medium brown-olive, .r-/,/1 / very Silty CLAY, with little root-voids, burrows ~~ / r-IO -/ -Massive I-~~ /
I--/ r-
r 12 -~~ ~ l-V/ ~ ~ -~ ~ I-
/1/
"-14 -. ~ ~ -TERRACE DEPOSIT '-~ CL-ML
Very stiff, moist to wet light olive to brown, very -16 -Silty CLAY to Clayey SILT '-
- -« -Seepage at 15.5 feet -
-18 . "/
TRENCH TERMINATED AT 18 FEET
-
Figure 'A-77, Log of Trench T 22 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ! ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE .
DATE INDICATED. IT IS NOT WARRANTED TO BE ~EPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER'LOCATIONS' AND TIMES.
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I PROJECTNO 06403-12-01
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0:: TRENCH T23 >-UJ zw ...... >-" e:!) l-ou' 1-...... I.LI~ ° <I: DEPTH ...I :::t SOIL HZI-H. 0:'"" SAMPLE ° 0 1-<r:LI.. CIlu. :JI-IN :I: Z CLASS ELEV. (MSL.) 105 DATE COMPLETED 11/4/99 <I: I-'\. Z. I-Z NO. I-:J O:CIlCJ) l.LIu ~I.LI FEET H ° (USCS) I-H:::t o.
...I 0:: I.LIc,nO >-0.. 0·1-
e:!) EQUIPMENT TRACKaOE JD 555 24" Zw...l 0:'"' :J;:z IS: 0:6 ° 0 u
MATERIAL DESCRIPTION
;-0 ~ ALLUVIUM -
;--r Stiff to very stiff, humid, dark gray-brown, Sandy -2 -CLAY I-
--~ -Numerous root-voids, rootlets, massive r T23-1 CL 114.3 10.8
i-4 -I-
T23-2
;--0 l-
I-6 -I-::/ I--:1.1 :1-
I-8 -11 -f TERRACE DEPOSIT l-
SM Medium dense, damp, brown-olive, very Silty, fme
I--:'1 t-!-SAND, with some clay, massive, blocky l-
I-10 -:1· /1-I---------------------------------------
I--~ Very stiff, moist, light reddish-brown, very l-
I-12 -Silty/Sandy CLAY I-
-Becomes massive
I--~ , ;-
I-14 -'-
~ CL
l-.-. -Strong water seepage I-~ I-16 -l-
f--: -~ -
TRENCH TERMINATED AT 17.5 FEET
-
Figure A-78, Log of Trench T 23 .. LCG
SAMPLE SYMBOLS o .. , SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :!: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE'REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO. 06403-12-01
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0::: TRENCH T24 >-UJ zLLl ...... >-...... c.!) I-o t.),. 1-"" Lll~ 0 <r: DEPTH ..J :3: SOIL Hzl-H. 0:::"" SAMPLE 0 0 l-<J:lI.. Cl)lI.. :::JI-IN ::I: z CLASS ELEV. (MSL~) 126' DATE COMPLETED 11/4/9,9 <r: I-"-z. I-z NO. 0::: CJ) LllU FEET I-:::J (USCS) I-(1):3:' o. Cl)UJ H 0 WHo HI-..J 0::: EQUIPMENT TRACKHOE JD 555 24" ztn..J >-0.. Oz c.!) wLLlco 0::'"" l:o 0..0:::"" 0 U
MATERIAL DESCRIPTION· : I-0 V/ CL ..
I--TOPSOIL ~//' Stiff, humid, dark gray-brown, Sandy CLAY
I-2 -{// TERRACE DEPOSIT i-
I--Medium dense, damp, light reddish-brown, I-T24-1 ~/~ SC Clayey, fine SAND 112.5 7.9
I-4 -T24-2
";(/. --
I--V':~% -'-~/ -Calcium carbonate linings
I-6 -: // -Massive with indistinct lenses of sandy or silty '-t{/0 I--clay, numerous root-voids and calcium -(0 carbonate-lined fractures, scattered carbon
I-8 -~/~ fragments and pisolites of ir~n oxide -
I--~/0 -
I-10 -f./j -
I--T24-3 !"/./ -116.3 11.5 ~/.) I-12 --Calcium carbonate linings -T24-4 {;/:-I---
14 -~).~ ~ I-;:>!.
I--//.--.
TRENCH TERMINATED AT 15 FEET
-
Figure A-79, Log of Trench T 24 Lee
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ • •• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE' (UNDISTURBED)
Ii] ... CHUNK SAMPLE :!: ... WATER TABLE OR SEEPAGE '= . .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: TRENCH T25 :>-UJ ZLLJ""' :>-,... t!) l-ou' 1-".., UJ~ 0 <I: DEPTH ...l :J: SOIL Hzl-H • 0::""
IN SAMPLE 0 0 CLASS I-<l:u. (l)u. :::JI-NO. ::I: z ELEV. (MSL.) 137 DATE COMPLETED 11/4/99 <1:1-' z • I-z ~ :::J 0:: en (I) UJu (l)Uj FEET 0 (USCS) I-H:J: O. HI-...l 0:: LLJ (1)0 :>-0.. Oz EQUIPMENT TRACKHOE JD 555 24" " ZLLJ...l t!) Ul c::CQ 0::'"' 1:0
a.. '"' c u
MATERIAL DESCRIPTION
r 0 ~ r -COLLUVIUM -Very stiff, damp to moist, dark gray-brown, Sandy
r 2 -CLAY -
r--~ -Massive, with root-voids, rootlets -CL
r 4 -r -r--~ r
r 6 -r ::/ r -~ I
r 8 -TERRACE DEPOSIT r Very stiff, moist to very moist, light brown, Sandy
r -CLAY r-
IO -~ CL -Massive, with root-voids r r
--.0 r
-12" --Irregular, near-horizontal contact
II CL SANTIAGO FORMATION ----Stiff to very stiff, moist, light olive, very Silty r-14 CLAYSTONE
-Very fractured and weathered
TRENCH TERMINATED AT 14 FEET
" "
Fi~e A-SO, Log of Trench T 25 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION. TEST •••• DRIVE SAMPLE CUNIHSTURSED)
iJ ... CHUNK SAMPLE ~" •• ~ \1ATER TABLE OR SEEPAGE = "
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION-AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
~ TRENCH T26 :>-w ZUJ~ :>-~ g .. l-Ou • 1-"" w~ <1: DEPTH -I :::3: SOIL Hzl-H. ~v SAMPLE ° 0 CLASS I-<t:u. ~u.. ::JI-IN NO. ::J: Z ELEV. (MSL.) 137 DATE COMPLETED 11/4/99 <1:1-' w ., I-z I-::J ~cnCJ) oc.: Cfl W FEET H 0 (USCS) I-:-H :::3: HI--I ~ WcnO :>-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ-I CD wo::co ~v I:o a. ,v 0 u
MATERIAL DESCRIPTION -0 x. --ALLUVWM -Stiff, moist, dark olive-brown, Sandy CLAY. with
I-2 -some silt, root-voids and rootlets -
r -~ -
I-4 -CL l-
I--~ r -
-6 -I-
--I I-
-8 -"/.
--0. TERRACE DEPOSIT I-Stiff to very stiff, moist, light brown, very Sandy -10 -CLAY I--
-~ CL I-
12 -I-
-0 i-
14
TRENCH TERMINATED AT 14,FEET ..
--
Figure A-81, Log of Trench T 26 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL [J ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE' iJ.:. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: TRENCH T27 >-UJ Z·wr.. >-" C!) l-Ou • 1-...... UJ~ ° (J: DEPTH ..J :3: SOIL H:zl-H • 0:: ....
IN SAMPLE ° 0 . CLA.SS I-<I:u.. ~u.. :;:)1-::t: z ELEV: (MSL.) 146 DATE COMPLETED 11/5/99 <I: I-"-NO. 0:: en en w· I-z FEET I-:;:) (uses) o~ enUJ H 0 t;jH~ HI-..J 0:: EQUIPMENT TRACKHOE JD 5552411 z·ffi..J >-0-Oz C!) l:l:: 0::9 0::'"' I:o
0 u
MATERIAL DESCRIPTION -0 » --CL TOPSOll. -Stiff, humid, dark gray-brown, Sandy CLAY -2 -~// --TERRACE DEPOSIT . I-{/> SC
Medium dense, damp, reddish-brown, very Clayey, -4 -l/-Y; fine SAND, mas.s.ive, blocky, with calcium r
--XL carbonate, -mottling I-
-6 -/~~ I-T27-1 ~~ -___ -§1!e~~c!. b..e~d.!nj 2~t ~~ J'13Q.'Y ,_ 2.?~\y ...: ________ • ~ 108.2 19.8 --~Aj T27-2 CH , ,.. 8 -~/y Soft to stiff, very moist, light olive, Silty plastic r /,~.I,( CLAY
r" .-'{.~ SC ... '-__ -~~I!!-e.!~u~,_s~c.!c~n~i4eE ~e~~ ~~It g~c~e~ _______ , ~ -10 -;:// Medium dense, damp, light brown, very Clayey, I-Z/:~ very fine SAND -./''/. r" -Massive, blocky, with 114" +-charcoal fragmep.ts,
with some silt
TRENCH TERMINATED AT 11 FEET
,
Figur.e A-82, Log of Trench T 27 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL [J ... STANDARD PENETRATION TeST •••• DRIVE SAMPLt: (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE. iJ .... 'CHUNK SAMPLE :!'!: ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATioN AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01 , ,
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0:: TRENCH T28 >-UJ ZLIJ'" >-'" (.!) l-ou· 1-", UJ~ 0 <I: DEPTH ...J :3: SOIL HZI-H • 0:: ...... SAMPLE ° C CLASS I-<I:u. Cf)u. ::ll-IN :I: Z ELEV. (MSL.) 93 DATE COMPLETED 11/5/99 <I: I-"-Z • I-z NO. I-::J O::(I)CIl UJu CIlUJ FEET H 0 (USCS) I-H::3: c • HI-...J 0:: lJJ (1)0 >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" z LIJ-l (.!) ~ 0::6 0::'"' ';:0
C u
MATERIAL DESCRIPTION -0 :~. 1:1_ --lh FILL ~
Loose, dry to humid, ,light brown, Silty. Gravelly • -2 -. t.? ~M-GM fine SAND. with oversize concrete, wood, trash '-
: i' --J~l -
-4 -'1: . '1
0. --ALLUVIUM -Stiff, moist, dark gray-brown, Sandy CLAY -6 --Massive, with root-voids, rootlets ...
--~ -I
-8 --CL --Z --
-: 10 --
"", -~ I-
-12 -JI."j.
"" -l"f TERRACE DEPOSIT l-SM Medium dense, moist, light brown, Silty, fine
"" 14 -:', t-l-SAND I-
-Very weathered, with some clay - -:1-."1-I-
,.. ,16 'J' i ., -Becomes very dense, damp, and cemented
TRENCH TERMINATED AT 16 FEET
-
Figure A-83, Log of Trench T 28 I LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST' ..... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE = ,
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRE~CH LocATION ,AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO. 06403-12-01
0:: TRENCH T29 >-w ZUl""' >-'" (.!) l-Ou • ,I=i---w:-: 0 <I: DEPTH ..J :3: SOIL HZ'"" Ul • 0:: ......
IN SAMPLe 0 c CLASS I-<I:IJ.. ZlJ.. ::JI-NO. :x: z ELEV. (MSL.) 90 DATE COMPLETED 11/5199 <1:1-' w • I-Z FEET I-::J (USCS) I=cn~ C~ , UlUJ H 0 wHo HI-..J 0:: EQUIPMENT TRACKHOE JD 555,24" zcn..J >-0.. Oz (.!) wUlCQ 0::"" :E:o a.. 0::: ...... 0 tJ
MATER,IAL DESCRIPTION
;-0 ~ r -' COLLUVIUM I-
Stiff, damp, dark gray-brown, Sandy CLAY
r 2 --Massive, with root-voids and rootlets l-
I--~ l-
I-4 -CL l-
I--~ l-
I-6 -I-
... -~ l-
I-8 -
I--V/.} TERRACE D:gpQSlT I-{;// Medium dense, damp, reddish-brown to olive,
I-10 -[7/-~ SC Clayey, fine SAND l-
I--. ";//. I-
12 -~f.% ... " l-v.: ,'/ ___ -~:.c~~e~ ~~~e! ~r~~l!! ~~t1!. r:9~t~, !~O!-~Oi~ _______ #
I--:l,'l Medium dense to dense, light brown-tan, Silty, '-
li'l SM
I-14 -fme to medium SAND, with some clay, fine -,1Lt root-voids I-
TRENCH TERMINATED AT 15 FEET
Figure A-84, Log of Trench T 29 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL'
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD ,PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ .:. YATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATI.CN AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND 'TIMES.
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PROJECT NO 06403-12-01
0::: TRENCH T30 , )-W zL1l ..... )-t!) I-'" 0 <t o (.J •. 1-" W~ DEPTH ....J ::3: SOIL HZI-H. 0:::'""
IN SAMPLE 0 0 CLASS (-<1:u. CIlu. ::;:)1-
NO. :r: z ELEV. (MSL.) 120 DATE COMPLETED 11/5199 <1:(-" z. I-z I-::;:) ~ooCIl W(.J FEET H 0 (Uses) (-H::3: o .. ~I..LI
....J 0::: EQUIPMENT TRACKHOE JD 5552411
lLI 000 )-tl. 0""" t!) zlLI....J ~z ~o::~ 0:: ....... 0 0 u
MATERIAL DESCRIPTION
I-0 • '~';"t ' .. ~., SANTIAGO FORMATION -
I--:·t· ·:r I-
.tI • " .. SM Very dense, damp, light brown-tan, Silty, medium ·:~:~:t I-2 -'. 'r to coarse SANDSTONE I-
: pi· .. :~ .. -Massive I--1': :1:".1' I-
TRENCH TERMINATED AT 3.5 FEET -
,
-
,.
,
Figure A-85, Log of Trench T 30 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL .
~ ••• DISTURBED OR BAG SAMPLE
IJ .. . STANDARD PENETRATI ON TEST ••• ~ DRI ve SAMPLE (UNO I STURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SeePAGE =
NOTE: THe LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THe
DATE INDICATED. IT IS NOT WARRANTED TO·BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES •.
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I PROJECTNO 06403-12-01
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0:: TRENCH T31 >-UJ ~UJ~ >-.-. t!). l-I-...... w~ 0 <I: HUI-DEPTH ..J ::3: SOIL I-Zu. H. 0:: ",.
SAMPLE 0 0 CLASS <1:<1:, CIlu. :::ll-I-N ::J: z ELEV. (MSL.) , 115 DATE COMPLETED 11/5/99 0:: I-(/) Z. I-Z NO. I-:::l UJu FEET (USCS) 1-(1)::3: o • (/)lJJ H 0 WHO HI-..J 0:: EQUIPMENT TRACKHOE JD 555 24" zen..J >-a.. Oz CD wUJco 0::'" ll:o a.. 0::...-0 u
MATERIAL DESCRIPTION r-0 ~ r--COLLUVIUM f-Stiff, moist, dark gray-brown, Sandy CLAY, with
f-2 -root-voids, rootlets, burrows r-~ CL f-r--
f-4 --Becomes soft, very moist r-
f--. -/ -Irregular, N-inclined contact -::~:rt. SANTIAGO FORMATION r-6 -'t .,~ :-. . . Very dense, damp! light brown to tan, Silty, coarse ... SM .. . ~.".' r--:~:~::t SANDSTONE '-
f-g :.,. ·:c;
TRENCH TERMINATED AT g FEET
-
Figure· A-86, L.og of Trench T 31 LCG
. SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iiJ ..• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR'TRENCH LOCATION ANQ AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIO~S AND TIME~.
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I PROJECT NO . 06403-12-01
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0:: TRENCH T32 ,... UJ ZlJ.I'"' ,... '"' (!) I-0 <J: °U' ~.~ UJ~ DEPTH SAMPLE ...I 3 . SOIL HZI-0::'-'
IN 0 0 CLASS 1-<I:L1. zL1. ::ll-NO. :::c z ELEV. (MSL.) 80 DATE COMPLETED 11/5/99 <J: I-"-UJ' I-z FEET I-::l (USCS) O::en Ul cc.: UlUJ H 0 I-H 3 HI-...I 0:: EQUIPMENT TRACKHOE JD 555 24" UJ eno ,...Q.. Oz (!) zlJ.l...l 0::'"" ~o ~o::e c u
MATERIAL DESCRIPTION
I-0 .~ t--ALLUVIUM I-
Stiff, moist, dark gray-brown, Sandy CLAY
I-2 --Massive, with rootlets, root-voids l-
I--.~ l-
t-4 -t-
-~ f-
CL -6 -t-
-t-to ,
:-8 -f-
-!;<: t-
-10 ---------------------------------------t'~;:; Medium dense, very moist, reddish-brown; very :--7./ t-
r.'~ Clayey, medium SAND, with scattered angular -12 -'i~ volcanic gravel-clasts near base , ,...
:.. -Xi sc ,...
:.. 14 -~~ I -Stro:p.g seepage at 14 feet, becomes gravelly -;1 :.. --
-16 l?-';.r0
TRENCH TERMINATED AT 16 FEET
. ,
Figure A.;.87, Log of Trench T 32 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE . ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: :=
>--I.J..I TRENCH T33 ZUJ'" >-'" t!) ..... °u' 1-"" I.J..I~ 0 <I: DEPTH ..J :3: SOIL H Z !-H. 0::""
IN SAMPLE 0 0 CLASS !-<J:LI. tnu. ~I-NO. :t: Z ELEV. (MSL.) 90 DATE COMPLETED 11/5199 ~"'"'" ;;, Z •
I-:::l !-(/):3: l.J..Iu (l)Z FEET H 0 (Uses) I.J..IHO 0. HI.J..I
..J 0:: EQUIPMENT TRACKHOE JD 555 2411 z(/)...! >-0.. 01-
t!) I.J..IUJID 0:: ..... 1:z 0 0..0::"" 0 tJ
MATERIAL DESCRIPTION ..
r-0 ~ I--COLLUVIUM I-Stiff, humid to damp. dark gray-brown, Sandy :-2 -~ CL CLAY, with scattered angular volcanic l-
I--gravel-clasts r-
I-4 -_ J
't~'r ' .,
:--::t:j::f SANTIAGO FORMATION r .' 'f' Very dense, damp, light brown to tan, Silty,
I-6 -~:f: :"t medium SANDSTONE ,....
" .~., SM :·t· ·:f -Massive to faint bedding layers :--... -Bedding; NSOW, lOSW r . ~,.., , ·:f: :·t l-S -. ., "-::t:~::~: ' , ,
TRENCH TERMINATED AT 9 FEET
-
. Figure A-88, Log of Trench T 33 Lee
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ .. , STANDARD PENETRATION-TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE" iJ .. ", CHUNK SAMPLE ~ , .. WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATI"ON, AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE "CONDITIONS AT OT"HER LOCATIONS AND TIMES.
I
I PROJECT NO' 06403-12-01
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et: TRENCH T34 >-LLI Z' '" >-,... C,!). I-01..1.1 • 1-,... w~ 0 <I: HUI-DEPTH ..J :::3: SOIL I-ZLL. H. 0::'""
IN SAMPLE 0 0 CLASS <1:<1:, CJlLL. =>1-
NO. ::c Z ELEV. (MSL.) 105 . DATE COMPLETED 1115/99 et:I-CI) Z • I-z LL1u FEET I-::J (USCS) I-CI):::3: o. Cl)1JJ H 0 LL1~P HI-..J et: EQUIPMENT TRACKHOE JD 55524" Zw:...l >-0-Oz C,!) LL1et:cc 0::'"" :E:o 0-_'"' 0 u
MATERIAL DESCRIPTION ... 0 ~ ... -ALLUVIUM r-Stiff to very stiff, damp, dark· gray-brown, Sandy -2 -CLAY r-
--~ -Massive, root-voids and .rootlets r--
;-4 -CL -
-:--@ .. -
;-6 --~ "---Becomes more sandy, moist, brown -
I r-8 -~ -.
'. .
I--.;;: I-
r-IO -;:,:.( / TERRACE DEPOSIT I-//~ r--XL Medium dense, moist, reddish-brown, very Clayey, I-
/// SC medium to coarse SAND r-12 -/./} l-
i--1'// -I-
:-14 -~/.0 -Becomes gravelly at 14 feet, with sub angular . ... /.t volcanic rock
:-
TRENCH TERMINATED AT 15 FEET
REFUSAL ON ROCK
-
~
Figure A-89, Log of Trench T 34 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PEnETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE' iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON-APPLIES ONLY AT THE SPEciFIC BORING OR TRENCH LOCATION AND AT tHE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I'
Figure A-90, Log of Trench T 35 . LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE :L ; .• WATER TABLE OR SEEPAGE =.
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING 'OR TRENCH LOCATION AND AT'THE'
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE 'OF SUBSURFACE CONDITIONS AT OTHER LocATIONS AND TIMES.
I
I PROJECT NO 06403-12-01 ..
I DEPTH SAMPLE IN NO.
I FEET
0:: TRENCH T36 >-UJ Z1.L.I'" >-'" C,!) l-Ou . '""' .... UJ~ 0 <I: ...J ~ SOIL HZI-H. 0:: .....
0 ° CLASS 1-<I:l.L. cnl.L. :::JI-Z Z ELEV. (MSL.) 175 DATE COMPLETED 11/5199 <1:1-' z. l-z I-:::J O::(f)cn UJ u H 0 (USCS) I-H:l: O. cnllJ HI-...J 0:: EQUIPMENT
UJ(f)o >-0-Oz TRACKHOE JD 55524" zlJJ...l C,!) ~o::e 0::"" .:11:0 .
0 u
MATERIAL DESCRIPTION
TOPSOIL -
SC Loose, damp, dark brown, Clayey, medium SAND
I. : 2 = -
-Clean sand near contact
I
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I.
I
I
I
II
I
I
f-4 -
--ML
f-6 -
f--
f-8. -I-__ ++L.U.J~--+ __ -+-,,"\
SANTIAGO FORMATION
Very stiff, firm, moist, reddish-brown to olive,
very Clayey SILTSTONE
-Very fractured and weathered, with shallow
creep-fractures and surficial slumps
-Bedding near-horizontal
-Becomes Very hard, moist, light olive
-Blocky, massive
TRENCH TERMINATED AT 8 FEET
Figure A-91, Log of Trench T 36
I-
l-
I-
LCG
SAMPLE SYMBOLS 0 ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION rEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE ij ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED~ IT'IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS' AND TIMES.
I
I PROJECTNO 06403-12-01
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0:: TRENCH T37 >-W ZLIJ" >-,... t!)' l-ou' 1-...... w~ ° <I: DEPTH ...J 3 SOIL Hzl-H. 0::"'"
IN SAMPLE ° a CLASS I-<I:IJ.. (J)IJ.. :::;)1-NO. ::J: Z ELEV. (MSL.) 140 DATE COMPLETED 11/5/99 <I: 1-' z. I-z 0:: (J) Wu FEET I-:::;) (USCS) I-fa3, (J)UI H ° a. HI-...J 0:: ' WcnO >-c.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...J t!) wo:::cc 0::'"' ::Co c.. v-a u
MATERIAL DESCRIPTION
f-0 ~ I--COLLUVIUM -Stiff, moist, dark gray-brown, Sandy CLAY
roo 2 -CL l-
I--« I-
roo 4 -. '/
;;/j -TERRACE DEPOSIT roo -f-f// Medium dense, moist, reddish-brown, very Clayey,
I-6 -Z~~ medium to coarse SAND I-SC -Massive, blocky, with angular gravel-clasts of roo -y/-I-l/:"'-:/ volcanic rock at base 1
roo 8 -~ -
--Deposition-contact; N80E, 20S ,...
:~~ ":t: -10 -: .. ~.: SM SANTIAGO FORMATION -::t:j::t Dense, damp, light brown-tan, Silty, coarse
SANDSTONE, massive
TRENCH TERMINATED AT 11 FEET
"
-
Figure'A-92, Log of Trench T 37 LCG
1
SAMPLE SYMBOLS [] '" SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
11 ... STANDARD PENETRATION TEST •••• DRIVE'SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURF.ACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I··
I PROJECT NO 06403-12-01
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I
~ TRENCH T38 >-Ul ZUJ"" >-"" t!l l-Ou • 1-"" Ul~ ° <I: DEPTH ...J :3: SOIL Hzl-H. 0::'"'
IN SAMPLE ° c CLASS 1-(tL1. Cl)L1. ::JI-. NO. :J: z ELEV. (MSL.) 125 DATE COMPLETED 11/8/99 <1: .... ' z. I-z FEET I-::l (USCS) ~enCl) L1Ju Cl)LIJ H O. I-H:3: C. HI-...J 0:: UlenO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...J t!l g:o::E9 ~'-' 1:0
C u
MATERIAL DESCRIPTION
i-a ~ I--COLLUVIUMILANDSLIDE DEBRIS -Stiff, .moist, dark brown, Sandy CLAY, with clasts ,... 2 -of sandstone, porous, with root-voids . -
i--~ ...
i-4 -~ CL -
i--.~. l-
i-6 -i-
i--i-
i-8 -~ -Very irregular, transitional contact, becoming i-very moist .
i---Becomes soft, very moist, mottled light brown to r
10 -olive, very Sandy CLAY, with angular chunks of i-~ Santiago formation, sandstone; disturbed, mixed
--textures r-
12 -Vj -
--~ --
14 -. '/ -Very irregular, wet, plastic, clay seam -~ CL SANTIAGO FORMATION
Stiff, very m<;>ist, light olive, Silty CLAYSTONE
-Very weathered and fractured
TRENCH TERMINATED AT IS FEET
-
Figure A-93, Log of Trench T 38 Lr;G
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBEO)
~ ••• DISTURBED OR BAG SAMPLE iJ .... CHUNK SAMPLE ~ ••• WAT~R TABLE OR .SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
i
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I
PROJECT NO . 06403-12-01
.~ TRENCH T39 :>-IJJ ZUJ""' :>-t.!) I-""' 0 <J: °u ~ 1-,..., .~
DEPTH ..J ::3: SOIL J:-zt· H-~v SAMPLE W •
. IN . 0 0 CLASS <I: <I: , zu. ::JI-NO. ::c: z ELEV. (MSL.) 120 DATE COMPLETED 1118/99 ~t.-w UJc.i ~z 1--::J FEET H 0 (USCS) I-W::3: o • HIJJ IJJH O l-..J ~ EQUIPMENT TRACKHOE JD 555 24" zW..J :>-0.. Oz t.!) IJJ UJ ec 0:::'-' ;t:o a..C:::,-, 0 u
-MATERIAL DESCRIPTION
r-0 ~ r--LANDSLIDE DEBRIS f-
Stiff, damp, dark gray-brown, Sandy CLAY
f-2 --Porous, with rootlets , root-voids r-
r--.~ CL I-
r-4 -f-
r -~ -~
f-6 --Irregular contact i-
r---Becomes soft, wet, reddish-brown, -f2 Sandy-Gravelly CLAY, with disturbed texture
r-8 -(brecciated) -
r -% ~ -Strong seepage -
-10 -~ CL-CH
-Very irregluar, plastic clay seam contact (caving)
-SANTIAGO FORMATION
Stiff, very moist, light olive, Silty CLAYSTONE
-Very fractured and weathered
TRENCH TERMINATED AT 11 FEET
.
-
-.
Figure A-94, Log of Trench T 39 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDiSTURBED)
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAC; CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO. 06403-12-01 .
~ TRENCH T40 >-Zw""' .>-,... C,!) °u • 1-,..,. lJJ:-: 0 < DEPTH .J SOIL HZI-H. '0::"-" SAMPLE 0 ~ I-<J:LI. (./)LI. ~I-IN NO. ::r: CLASS ELEV. (MSL.) lSS DATE COMPLETED 11/8/99 <1:1-' z.
I-f=(./)~ Wu C/)Z FEET H ~ (USCS) lJJ·Ho c . .H~ .J EQUIPMENT TRACKHOE JD 5SS 24" z(./).J >-c.. Oz lJJwrQ 0::""" :1::0 0..0::"" C U
MATERIAL DESCRIPTION -0 ~?j SC TOPSOIL --P/:' Loose, damp, dark J~~O\VIl' c:layey, medium SAND -
-2 -.f'l TERRACE DEPOSIT . -
I--.r Medium dense, damp, reddish-brown, Gravelly" -
4 : ~'f Silty coarse SAND r--SM -Massive r-
-~.~l I--
_,·f
r-
r-6 -r-
-Near-horizontal d, 1::11 contact r--.. ~[/~ LANDSLIDE DEBRIS ,
r-g -~~~ Soft, very moist to wet, light olive-brown~ Silty r-
--~~~ rT .r,::r CLAY I-
-10 -~~I,I -Disturbed, with numerous clay seams, chunks of r-//~ santiago formation and Jsp
---1-2" remolded clay seam with slickensides; N85W, ~ ~ rT .rli 40S
12 -SANTIAGO FORMATION r-
-Stiff, very moist, light olive, Silty CLAYSTONE
-~eiy fractured and weathered
TRENCH TERMINATED AT 13 FEET .
Figure A-95, Log of Trench T 40 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSrUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST II· ... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :!: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT 'THE
DATE INDICATED. IT IS NOT WARRANTEO TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS ANO' T1MES.
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PROJECT NO. ()n4()'~-12-01
II
TRENCH T41 >-~UJ" >-" t!)
0 u' 1-"" Ul~ DEPTH -l SOIL .-zt H. 0::""
IN .. SAMPLE 0 CLASS ~<I:, cnu. ::JI-NO. Z ELEV. (MSL.) 145 DATE COMPLETED 1118/99 bien z. I-z I-UJu FEET H ,CUSCS) ~H3 c " en Ul HI--l EQUIPMENT TRACKHOE JD 555 2411 c.n 0 :>-0.. Oz UJ-l cc 0:::'-" 1::0
, ' 0..0:::..., C U
MATERIAL DESCRIPTION
I-0 ~ I--LANDSLIDE DEBRIS I-
Soft, very moist, light brown to olive, very coarse,
r 2 -GC Clayey boulder GRAVEL, with subrounded 6 to I-
24 n volcanic boulders' r--~ l-
I-4 -I-
--I-
~ 6 -~ I-
... -'l-
I I'Y f-8 ':" seepage
I
~ 1= -Very Irregular t"nnt<lC't inclined southward
f--("T _("'J.T SANTIAGO FORMATION l-
f-10 -~ Stiff, wet, light olive, Silty CLAYSTONE I-
-Very fractured, weathered, with clay seams
'--~ f-
~ ~ ... 12
TRENCH TERMINATED AT 12 FEET
-
Figure, A-96, Log of Trench T 41 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL (] ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE ~ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING ,OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSUR~ACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I PROJECTNO
I'
'1'
I.
I
I
I
I.
I
I
I
·1
DEPTH
IN SAMPLE
NO. FEET
I-0
I--
I-2 -
f--
I-4 -
I--
I-6 -
--
-8 -
-
-10 -
--
-12
..
06403-12-01
0:: TRENCH T42 >-LIJ (.!) I-0 <I: ...l ::I . SOIL
0 c CLASS Z z ELEV. (MSL.) 170 DATE COMPLETED I-::.l H 0 (Uses)
...l 0:: EQUIPMENT . TRACKHOE JD 55524" (.!)
MATERIAL DESCRIPTION
~ CL LANDSLIDE DEBRIS
Stiff, damp to humid, dark brown, Sandy CLAY
~ -Becomes soft to stiff, moist, light olive mottled
with reddish-brown, Silty CLAY, with scattered
angular volcanic clasts, disturbed, brecciated
texture ~ -
~ -Becomes very moist to wet
~ ~ -Strong seepage, caving
-Remolded clay seam, N85~, lOS, approx. 2" thick './ -Becomes stiff, wet, light olive-gray, Silty CLAY
-May be very weathered Santiago Formation (?)
TRENCH TERMINATED AT 12 FEET
-
Figure A-97, Log of Trench T 42
Zw'" >-'" 0(..) • 1-", I.I.I~ HZI-H. 0:: ..... . I-<eu.. tnu.. ::.ll-11/8/99 <1:1-' z. I-z O::cn tn LlJU I-H:::t c. tnUl HI-LlJcnO >-0.. Oz zw...J 0:: ..... ::E:o ~o::S C U
I-
l-
I-
I-
l-
I-
r
l-I
,.
I-
i---
. .
~CG
·SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ .,. STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
§§ ... ·DISTURBED OR BAG SAMPLE ~ ••• CHUNK SAMPLE ~ .... WATER TABLE OR SEEPAGE
NOTE: TH.E, LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCAT~9N AND AT THE ..
DATe !NDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIPNS AND TIMES.
I
I PROJECT NO. 06403-12-01
-. I,
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0::: TRENCH T43 >-LtJ zUJ~ >-~ t!) ~ °u . 1-...... Ul~ 0 DEPTH ...l ::r: SOIL HZI-H. 0:::"" SAMPLE 0 0 1-<t:LI. (Jl1..I.. ::>1-IN NO, :t: Z CLASS ELEV. (MSL.) 200 DATE COMPLETED 11/8/99 <1:1-' ffi •. t;z I-::> Q::CI)CSl C~ FEET ~ 0 (USCS) I-H:::3: 'HLLI 0::: UlcnO >0-01-
t!) EQUIPMENT TRACKHOE JD 555 24" zUJ...l 0:::'"' ~z Ulo::CO 0
0-"" C U
MATERIAL_ DESCRIPTION
0 I-~ I--COLLUVIUM I-
CL Stiff, moist, dark brown,-Sandy, Gravelly CLAY,
I-2 -~ with angular volcanic clasts i-
I--l-
I-4 --Becomes light olive, very moist, more silty r ~ I---Discontinuous, out-of-slope slickensided clay l-
I-6 -seams ~~ ~ CL SANTIAGO FORMATION I--Very stiff to hard, moist, light olive-gray, Silty l-
I-8 CLAYSTONE
-Blocky, massive
TRENCH TERMINATED AT 8 FEET
--
Figure A-98, Log of Trench T 43 LCG
SAMPLE SYMBOLS o ,., SAMPLING UNSUCCESSFUL IJ , .. STANDARD PENETRATION TEST .," DRIVE SAMPLE (UNDISTURBED)
~ •• ', D-ISTURBED OR BAG SAMPLE -iJ -". CHUNK SAMPLE ~ •• ; WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I
PROJECT NO 06403-12-01
0:: TRENCH T44 >-UI ZUl" >-" tll I-
DEPTH' 0 <I: °u . 1-" UI~
..J 3 SOIL HZI-H. 0::'""
IN SAMPLE 0 0 CLASS 1-(tlJ.. CIll.l. ::ll-NO. Z Z ELEV. (MSL.) 230 DATE COMPLETED '11/8/99 <I: I-'\. Z,. I-z FEET I-::l 0:: CJ) en ' Ulu en Ul H 0 (Uses) I-H 3 o. HI-..J 0:: EQUIPMENT lRACKHOE JD 555 24" UlCJ)O >-0-Oz tll ZUl..J 0::'"" 1:0 ~o::e 0 u'
MATERIAL DESCRIPTION " ~ 0 ~ ~ -COlLUVIUM f-V$ Stiff, moist, dark red-brown, very Gravelly
r 2 -CLAY, with angular clasts of volcanic rocks r ~ CL I--~
~ 4 -l-
I---I-
r 6 --Irregular, downslope-inclined clay seam contact
;.J. I'L-
I--" .. tl'L-SANTIAGO PEAK VOLCANICS I-
v.'i" Very weathered, light reddish-brown, weak
I-8 VOLCANIC ROCK
-Very fractured, excavates to a clavev sand
TRENCH TERMINATED AT 8 FEET
-,
-
I ' ..
Figure A-99, Log of Trench T 44, LCG
SAMPLE SYMBOLS 0' ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
!
I, PROJECT NO. 06403-12-01
I
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I
I
I ..
0:: >-UJ to I-
DEPTH
IN SAMPLE
FEET NO.
0 <r: ...I :3: SOIL 0 Cl CLASS :I: Z I-:;) H 0 (USCS)
...I 0:: t!)
I-0
I--
I-2 -CL
I--
I-4 -
I--
I-6 -/:L-ML
I--
l-S -
I--
I-10 -
SM
TRENCH T45
ELEV. (MSL.) 220 DATE COMPLETED.
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
COLLUVIUM
Stiff, damp, dark brown, Sandy CLAY'
SANTIAGO FORMATION
Hard, damp, light olive to tan, Clayey SILTSTONE
to Silty CLAYSTONE
-Laminated beds -112-2" thick
11/8/99
I-
Very dense, damp; light tan to reddish-brown, ...
Silty, medium to coarse SANDSTONE, massive -
-
TRENCH TERMINATED AT 13 FEET
ZIJJ ..... >-..... O'u' 1-...... IJJ~ HZI-H. 0::.'"' I-<r:u. (J)u. :;)1-<r:1-" z. I-z O::(J)tn lJJu I-H:3: c. .~UJ lJJ(J)o >-a. 01-zlJJ...I ::e:z
UJ 0:: co 0::'"' 0 a..'"' c u
~--~----~~--~~~~----~--------------------------------------~--~~~~----Figure A-lOO, Log of Trench T 45 LCG
SAMPLE SYMBOLS o ... SAMPL I NG UNSUCCESS FUL IJ . .. STANDARD PENETRA T ION TEST •• •• DRl VE SAMPLE (UNO I STURBED)
~ ••• DISTURBED OR BAG SAMPLE i;J ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY. AT THE SpeCIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO . 06403-12-01
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I~ TRENCH T46 >-Zw'" > ,..... (!) 0 au • !-", LLI~ DEPTH ...l SOIL HZ !-H • 0:::""'
IN SAMPLE a CLASS I-<l:u. C/)u. ;:)1-:r: ELEV. (MSL.) 215 DATE COMPLETED 11/8/99 <1:1-' z . NO. Ii O:::C/)tn LLlu I-z FEET I-eUSCS) ~Ul H I-H 3 C •
...l EQUIPMENT WC/)O >0-01-TRACKHOE JD 55524" Zw...l :E:z ~o:::e 0:::'"" a c u
" MATERIAL DESCRIPTION
I-0 ~ I--' CL TOPSOll. I-
Stiff, damp, dark brown, Sandy CLAY
r-2 -~ SANTIAGO FORMATION I--~ Very stiff, moi~t, light olive, Silty CLAYSTONE,
,...
r-4 -~ very weathered, fractured, with random clay seams -
V-CL I--,:""
I-6 --
l-
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TRENCH TERMINATED AT7 FEET
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Figure A-lOl, Log of Trench T 46 ' , ,
LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIlIE SAMPLE (UNDISTURBED)
~ ••• , DISTURBED OR BAG SAMPLE 'iiJ. ~. CHUNK SAMPLE , ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFAC$ CONDITIONS AT OTHER LOCATIONS AND ,TIMES.
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I PROJECTNO 06403-12-01
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0:: TRENCH T47 >-I.i.J ZLJJ"" >-" CD l-Ou • 1-", 1.i.J~ 0 <t DEPTH ...l 3: SOIL Hzl-H. 0::'"" ,SAMPLE 0 c I-<I: LL. CJlu. :::ll-IN ::I: Z CLASS ELEV. (MSL.) 207 DATE COMPLETED 1118/99 <tl-' Z. I-z NO. I-:::l O::en Ctl UJu (J)1.i.J FEET H 0 (USCS) I-H 3 c. HI-...l 0:: l.i.JenO .~ Oz CD EQUIPMENT TRACKHOE JD 555 24" , zLJJ...l ~'"" :£:0 ~~e c u
MATERIAL DESCRIPTION
I-0 ~ , ,
-COLLUVIUM I-
Stiff, moist, dark brown, Sandy CLAY
'2 -I-
-f6 CL I-
4 -Z I-
-
-6 -II CL SANTIAGO FORMATION I-Stiff to very stiff, very moist, light olive, ~i1ty
CLAYSTONE /'
TRENCH TERMINATED AT 7 FEET
-
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Figure A-I02~ Log of Trench T 47 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPL; (UNDISTURBED)
iI ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE ='
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH 'LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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~ TRENCH T48 >-UJ Zw'" >-" (.!) l-Ou • 1-", UJ~ ° <I: DEPTH ..l :::I SOIL HZI-H. ~'-" SAMPLE ° c CLAS~ 1-(l:LL. cnLL. :::ll-IN NO. :I: z ELEV. (MSL.) 175 DATE COMPLETED . ·11/8/99 <1:1-' z. I-z I-:::l ~cncn .UJu cn UJ , FEET H ° (USCS) I-H:::I C. HI-..l ~ UJcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ..l (.!) UJ~co ~'"' . 1:0
a.. '"' c tJ
MATERIAL DESCRIPTION
f-0 0 f--TOPSOIL r
CL Stiff, humid, dark brown, Sandy CLAY
f-2 -r
f--.%
~ 'r-J,..
f-4 -~ i""r-J,..
SANTIAGO PEAK VOLCANICS f-
Very weathered, fractured, light red-brown, weak -
f-.t--VOLCANIC ROCK , /
TRENCH TERMINATED AT 5 FEET .,
..
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Figure A-I03, Log of Trench T 48 L.eG
SAMPLE SYMBOLS o ... ~AMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED)
Ii;) ... CHUNK SAMPLE ::t= •••. WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE . DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES •.
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TNO. 06403-12-01
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0:: TRENCH T49 I >-UJ ZLIJ'" >-(!) I-,.....
0 <I: °u . 1-", UJ~
..J ::I SOIL HZI-H. 0::'"" SAMPLE 0 Cl CLASS ~<I:~ CtllL. :::ll-
'NO. ::t: Z ELEV. (MSL.) 200 DATE COMPLETED 11/8/99 0::,1-Ctl Z. in z , I-:::l (USCS) I-CI)::I UJ u H 0 Cl '. H UJ
I ..J 0:: EQUIPMENT TRACKHOE JD 555 24"
lLI~O >-0.. o~ (!) ZLLl..J o::'-J' :E:o ~o::e Cl u
MATERIAL DESCRIPTION
I % TOPSOIL :..
Stiff, damp, dark brown, Sandy CLAY -CL :0-
I .~
::f~~::t' SM .. . SANTIAGO FORMATION -I "\ i \ Dense, damp, light red-brown, Silty, coarse
I I I SANDSTONE I I--
CL \L __ -~~ll!-E~ri}9.n!a! ~e~c!.iI!.g:c2~~~ ______________ .' I-
Hard, damp, light olive, very Silty CLAYSTONE r ~ -Very fractured and weathered, with calcium f.-
carbonate linings /
TRENCH TERMINATED AT 7.5 FEET
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~e A-I04, Log of Trench T 49 . I LCG
IPLE SYMBOLS o ~.. SAMPLI NG UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •.••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE' OR SEEPAGE
t HE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE,
ATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
: .~ .. :.; . ::: :::: ;: .. '
:,:,,:' ;:.":. .... ;. .... ;:
'" ........ .
" " ,', .. . . .. .... . ',' .:: :;:
:. .'.:' ,:.~;
" ',<,.', .
.; .. ,'
,'. ",
.. ':',':" ',' ', ..
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PROJECT NO 06403-12-01
0:: .' .' ., ,. UJ TRENCH T 50 zw ..... ,. ..... C,!) l-Ou • ' 1-..... LiJ:-': 0 <I: DEPTH ....I :3: SOIL /jZt: H • 0::"" ... SAMPLE 0 Cl -'<I: <1:" CIlu.. . ~!Z', IN NO. z z CLASS ELEV. (MSL.) 175 DATE COMPLETED 11/8/99 .. . 0:: ~cn' ,2: •
I-:::l UJu CJ)lJJ FEET H 0 (USCS) I-H:3: c . HI-UJ 0 ....I 0:: EQUIPMENT TRACKHOE JD 555 2411 ·ZCll..J ,.0.. Oz C,!) UJwCQ 0:: ...... :E:o a.. 0::"" Cl u
, ' MATERIAL DESCRIPTION -0 ~ . . . '-, .
--CL TOPSOlL r' Stiff, humid to damp, dark brown, Sandy CLAY
~ 2 -" :/ ' . r
~I ' , --SANTIAGO FORMATION r
-, 4 -Hard, damp, medium to dark olive, Silty--CLAYSTONE
~ --Very fractured and weathered, massive -",
" CL
r 6 -~II ~
~ --..
r-8
TRENCH TERMINATED AT 8 FEET
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Figure A .. l05, Log of Trench T 50 .LCG
SAMPLE SYMBOLS . 0 ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD' PE~ETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ::!: ••• WATER TABLE OR SEEPAGE = '
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT'THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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0:: TRENCH T 51 >-UI ZLLi""' >-""' (.!) l-Ou • ""'",.... lJJ~ ° <I: DEPTH ...l :3: SOIL Hzl-H. 0:: .....
IN SAMPLE ° Cl CLASS 1-<I:lJ.. cnlJ.. :::ll-NO. Z Z ELEV. (MSL.) . i65 DATE COMPLETED 11/8/99 <1:1-' z. .t;z I-:::l O::cncn lJJu FEET H ° CUSCS) I-H:3: c . 'HUJ
...l 0:: U1 cn O >-0-01-
t.!) EQUIPMENT TRACKHOE JD 555 24ft zUJ...l 0:: ..... :!CZ ~~e 0 Cl u
MATERIAL DESCRIPTION
I-0 ~ r -COLLUVIUM ,..
Stiff, very moist, reddish-brown, Clayey GRAVEL
I-2 -with boulders -
1-' --Massive, with mixture of rounded cobbles and -~ angular boulders of Jsp (18" +-)
I-4 -GC -
-I--r
I-6 -~ l-
I-
TRENCH TERMINATED AT 7 FEET
REFUSAL
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Figure A-I06, Log of"Trench T 51 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
[J ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE CUN-DISTURBED)
iiJ ••. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACe CONDITIONS AT-OTHER LOCATIONS AND TIMES.
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,~ " LLI~
0::'""
::;)1-LLI • I-Z O~ , (t)UI
HI-e.. Oz 'J 1:0
U
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LCG
I CUND I STURBED)
. R SEEPAGE
I THE
IMES.
PROJECT NO 06403-12-01
0:: TRENCH T 52 >-w ~w'" (l) I-0 <r: SOIL HUI-DEPTH SAMPLE -I :3: I-ZU
IN 0 0 CLASS <r: <r: " :c z ELEV. (MSL.) 137 DATE COMPLETED 11/8/99 0:: I-CJ NO. I-::;) (USCS) I-(t).., FEET H 0 UI~C -I 0:: Co!) EQUIPMENT TRACKEIOE JD 555 24" zw-If 0:: e
MATERIAL DESCRIPTION
f-0 t!~~~~ f--FIIL -
/:.;:::~ Loose, humid to damp, light brown, Gravelly, fine
f-2, -fJP-GM SAND with some silt -
I--!tti -
I-4 -l-
f--f-
I-6 -?:.~.::.:~: -Becomes loose, damp to moist, light brown, coarse I-
·.0: .;~ GRAVEL with oversize boulders > 2' diameter : .......... l-I--~r·:::~;-: .
I-8 -~~;,~ l-
f--l-
I-10 -I-
-~*l -Becomes loose, moist, dark brown, Sandy, coars~ I-GRAVEL, with roots, porous, organic odor, may
12 -be reworked, alluvium f-
-r-
14 -.::-~.::.:~ -Becomes very moist to wet :-:~i·::··::::~:: -Caving from 12 feet -
TRENCH TERMINATED AT 15 FEET
-
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Figure A-107, Log of Trench T 52 ,
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVES
iJ ... CHUNK SAMPLE ~ ••• WATER T =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LocATION DATE INDICATED. IT IS NOT WARRANTED TO BE REPRES~NTATIVE OF SUBSURFACE CONDITlONS AT OTHER LQCATIONS
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PROJECT NO 06403-12-01
0:: TRENCH T53 >-1LI Zw'"' :>-'"' t!) l-Ou ' 1:;'"' 1LI~ ° <I: DEPTH -l ::3: SOIL HZI-0:: ..... SAMPLE 1-<t:LL. en' IN ° c CLASS ZLL. ;:)1-::t z ELEV. (MSL.) 145 DATE COMPLETED 11/8/99 <1:1-' NO. O::(t')CIl w' I-Z FEET I-;:) (USCS) Cl~ . CIl IJ.( H 0 I-H::3: HI--l 0:: lLIenO :>-c.. Oz (!) EQUIPMENT TRACKHOE JD 555 24" mwaS 0:: ..... :E:o c..o:: ..... Cl u
MATERIAL DESCRIPTION
f-0 ~ I--COLLUVIUM -Stiff, moist, dark brown, Gravelly-Sandy CLAY
f-2 -CL ~
I--~ ,...
I-4 -
I--~ SANTIAGO FORMATION -
CL Hard, moist, light olive-brown, Gravelly-Sandy
f-6 -CLAYSTONE, with angular clasts of volcanic -~ rocks
f--. -tV -
/"/ I
I-8
TRENCH TERMINATED AT 8 FEET
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Figure A-I08, Log of Trench T 53 LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND A1 THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONOITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO. 06403-12-01
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0: TRENCH T54 >-UJ ZUJ""' >-" t!) ~ °u' 1-" UJ;-': 0 DEPTH ...l :3 SOIL Hzl-H. 0:: .... SAMPLE 0 ° CLASS I-<l:u.. C/)u.. ::::ll-IN NO. :x: z ELEV. (MSL.) 240 DATE COMPLETED 11/8/99 <1:1-' z • I-z I-::::l 0:(1)(/) UJu enUJ FEET H '0 (USCS) I-H 3 O. HI-...l 0: UJ enO >-0.. Oz EQUIPMENT TRACKHOE JD 555 2411 zUJ...l (!) UJ 0:: c:l 0: v-~o a.. v-a u
MATERIAL DESCRIPTION
I-0 v./~ r -v-: .J TOPSOll.. :-/// SC Loose, humid, dark brown, Clayey SAND, some
I-2 -~/~ silt l-
I--"/)"
~ It-£.-r 4 -~ i'\, £.-
SANTIAGO PEAK VOLCANICS -Very weathered and altered, reddish-brown, weak
I--~ i'\, £.-VOLCANIC ROCK -
r 6 -~.i' • -Very fractured and hydrothermally altered, -:..l \' £.-excavates to a gravelly, clayey sand ~.t"-• I--:..l \' £.--~~I' I
l-S
TRENCH TERMINATED AT 8 FEET
Figure A-I09, Log of Trench T 54 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE. . iJ ... CHUNK SAMPLE . :!: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION ~ND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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. 06403-12-01
e::: TRENCH T 55 )-UJ ZLU'" )-,... t!) l-Ou • 1-,... UJ~ a <I: DEPTH ...J i§ SOIL Hzl-H. e:::""' SAMPLE a CLASS 1-<J:L1. CJ)L1. :::JI-IN :J: Z ELEV. (MSL.) 150 DATE COMPLETED 1118199 <1:1-' z. ~Z NO. I-:::J e:::CJ)CJ) UJu FEET H a (USCS) I-H::a: c. H UJ
...J e::: UJcnO )-Cl.. 01-
t!) EQUIPMENT TRACKHOE JD 555 24" ffiLUc6' e:::""' ~z a o..C:::,,", c u
MATERIAL DESCRIPTION
i-0 ~ i--ALLUVIUM I-
CL
Stiff, damp, dark brown, very Sandy CLAY
r-2 -l-
i--~ -Irregular "v-shape" contact i-.'
r-4 -::f:j::t: SANTIAGO FORMATION i-
':f: :~: SM ... . . . Dense, damp, light brown-tan, Silty, medium r-o ••
SANDSTONE, massive
TRENCH TERMINATED AT 5 FEET
-
Figure A-110, Log of Trench T 55 LCG
SAMPLE SYMBOLS o ... SAMPLING UNsucceSSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD .PENETRATION TEST .... DRIVE SAMPLE(UNDIST~RBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS· AND TIMES.
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PROJECT NO. 06403-12-01
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TRENCH T 56· >-zlJJ ...... >-" (.!) °u . 1-...... LU~ 0 DEPTH .J SOIL /:!zt H. 0::1,,'
IN SAMPLE 0 CLASS <I: <I: , (l)1..L. ::JI-NO. Z ELEV. (MSL.) 185 DATE COMPLETED 1118199 0::1-(1) z. . ti;z I-1-(1):3: LUu FEET H (USCS) lIJHO c. H UJ
..J EQUIPMENT TRACKHOE JD 555 24" z(l)..J >-0.. 01-
lIJlJJlO 0::'"' ::cz 0 o..O::!v c u
MATERIAL DESCRIPTION
I-0 0 I--CL TOPSOIL -~ Stiff, damp, dark brown, Sandy CLAY
I-2 --
I--SANTIAGO FORMATION -
-4 -CL Very stiff to hard, moist, light olive, Silty --CLAYSTONE ---Very weathered and fractured -
-6
TRENCH TERMINATED AT 6 FEET ,
-1
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Figure A-Ill, Log of Trench T 56 LCG
SAMPLE SYMBOLS o ... SAMPL I NG UNSUCCESSFUL
~ • •• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE CUNDI STURBED)
~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
0:: TRENCH T57 >-Ul zw~ >-" CD l-Ou • I-~ IJ.I~ ° <I: DEPTH ...J :3: SOIL HZI-H • 0::'"' SAMPLE ° c I-<t:u. enU. :;:)1-IN :::t: Z CLASS ELEV. (MSL.) 180 DATE COMPLETED 11/8/99 <1:1-' :2:. I-z NO. I-::J 0:: en en We.,) en LLl FEET H ° (USCS) I-H:3: c . ~I-...J 0:: UlenO >-0... CD EQUIPMENT TRACKHOE JD 555 24" zw...J 0::"" I:~ LLl co 0...0::"" ". C U
MATERIAL DESCRIPTION .
I-0 ~ I--CL TOPSOlL I-
Stiff, damp," dark brown, Sandy CLAY
I-2 -. ./ I-
..... -:·f·~·:t' I-·t SM SANTIAGO FORMATION : ·tf' ·:f 4 ... Dense, damp, light olive to tan, Silty, fine --I--::f:~::f' .,. .",," SANDSTONE, with some clay
I-
TRENCH TERMINATED AT 5 FEET
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Figure A-ll2, Log of Trench T 57 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ , .. STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE i:l ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITiONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TREN.CH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO
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06403-12-01
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0:: TRENCH T 58" >-w ZLIJ'"' >-'"' (.!) l-Ou • 1-,.... w:-.e ° <I: DEPTH -l :::3: SOIL HZI-" tri • 0::'"
IN SAMPl.E ° 0 1-<tLL. zu. ::;)1-Cl.ASS <I: I-"' NO. ::J: z ELEV. (MSL.) 170 DATE COMPLETED 11/8/99 O::en(J) w' I-Z FEET I-:::l (Uses) c~ (J)w H 0 1-1-1:::3: HI--l 0::: WenO >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zLIJ-l (.!) lS:c::S 0::'"" :1::0
C u
MATERIAL DESCRIPTION
I-0 ~ -
I--CL TOPSOIL t-
Stiff, humid.to damp, dark gray-brown, Sandy
I-2 -"-:/ CLAY l-
I--::f:~::t. SANTIAGO FORMATION I-:·t· ·:f: I-4 -... Dense, damp, light reddiSh-brown, Silty, coarse • ~ to • t-:=f:·::f SM SbNDSTONE, massive
t--"f t-: tot· ·!f
I-6 .: :1:".
TRENCH TERMINATED AT 6 FEET , -
"" Figure A-113, Log of Trench T 58 LCG
SAMPLE SYMBOLS [] _ •• SAMPl.ING UNSUCCESSFUl.
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES~
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06403-12-01
0:: TRENCH T59 >-UI ZUlI"\ >-1"\ I t!) l-Ou • 1-...... UI~ ° <I: ...! :3: SOIL Hzl-H. 0:: v
° 0 I-<t:\.!. C/)\.!. ~I-::r: Z CLASS ELEV. (MSL.) 238 DATE COMPLETED 11110/99 <I: I-"-Z. O::C/)C/) UlU -z . I-::J ~U.I H ° (USCS) I-H:3: c •
...! 0:: -UlcnO >-0... 01-
~ t!) EQUIPMENT TRACKHOE JD 555 24" zUI...! 0:: v :E:z
Ulo:::lXl ° 0... v 0 u
MATERIAL DESCRIPTION
I ;Y~0 FILL y.~ ....
/./{ SC Loose, dry to humid, brown, qayey, Gravelly ?i:j SAND, with oversize debris, trash, wood, silt -
I 'j/."/; TERRACE DEPOSIT . ./ -{// Medium dense, reddish-brown, Clayey, fine SAND
I' l).-( -Massive, with lenses of clay and sand, oxide and -xf carbonate fracture coatings, some porosity, f-X ~/ root-voids
1!' -
I ,
/-1;4 sc -V/.· . !0 f-
I ~/~ I-
70 f-
~// -~egular depositional contact l-
I ·t~··~ f-::t:j\ SANTIAGO FORMATION
::f:~::~: Dense, damp, light orange to olive, Silty, fme f-. .. SM SANDSTONE, with'some clay 'T ' :r '=f= f-.: :j:.
TRENCH TERMINATED AT 16 FEET
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, -114 Lo g of Trench T 59 I LCG
IYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
iiG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
PROJECT
f-
I-
...
r-
,-
"-
...
'DEPTH
IN
FEET
a -r-
'-
2 -
-
4 -
-
6 --
Figur
~
NOTE: T
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I PROJECT NO. 06403-12-01
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0::: TRENCH T60 >-I.LI zw ..... >-..... CD I-0 <t °u . 1-..... I.LI~ DEPTH' ..J :J: SOIL HZI-H. 0:::'"'
IN SAMPLE 0 c CLASS 1-<r:LL. Cl)LL. ~I-NO. :J: z ELEV. (MSL.) 190 DATE COMPLETED 11/10/99 <t .... , ffi •. I-Z FEET I-~ (USCS) O::CI)CI) C~· Cl)UI H 0 I-H:J: HI-..J 0:: I.LICI)O >-0.. Oz EQVIPMENT TRACKHOE JD 555 24" zw..J (!) I.LI o::tC 0:: ..... :E:o 0.., ..... C u
MATERIAL DESCRIPTION r 0 ~'l'll r -l~ "I ALLUVIUM r
Loose, humid, dark gray-brown, Silty, fine SAND
I-2 -:'1 t-I' -Very porous, with root-voids, rootlets r
r -:ll r
'-4 -11 'I r
:'1 r \, r -SM -r :1, l -6 -l1 'I r
r -:'1 r \' :-
,.. 8 -:1, l '-
r -11 'j ...
I-10 -:', }[' ...
r -:1.l -Becomes loose to medium dense, light brown-tan, -111 Silty, rme SAND . ... 12 -:'j r [' -No root-void, rootlets, becomes cleaner with -
... -depth -:1--1-... 14 -1.i '\ -
... -:'j r [, -
-16 -:l.l -l,i '\ -:j t", -Becomes very moist -
18 .
TRENCH TERMINATED AT 18 FEET
(CAVING)
"
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Figure A-liS, Log of Trench T 60 I LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ '" STANDARD PENETRATION 'TEST •••• DRIVE SAMPLE (UNDISTURBEQ).
iJ ... CHUNK SAMPLE ~ •.• WATER TABl.E OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE. REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I,
I' PROJECT NO 06403-12-01
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0:: TRENCH T61 >-UJ ZUJ'" >-'" t!) l-Ou • 1--,", L1J~ ° <J: DEPTH -I ~ SOIL HZI-H • 0::'"' SAMPLE ° 0 I-<J:IJ.. CJ')LL.. ::l ..... IN ::I: Z CLASS ELEV. (MSL.) 230 DATE COMPLETED 11110/99 <J:I-' Z • I-Z NO. I-::l (USCS) O::cnct) UlU C/)UJ FEET H 0 I-H~ o • 13 ..... -I 0:: UJcnO >-0-t!) EQUIPMENT TRACKHOE JD 555 24" zUJ...l 0:: ..... :E:~' ~Q::e 0 Col
MATERIAL DESCRIPTION
t-O ~//;
I--[I:.) COLLUVIUM I-{// SC Medium dense, hUIb.id, dark brown, Clayey, fine
t-2 -Z:(-~ SAND l-
t--yf· -Porous, with roots, burrows I--Irregular, out-of-slope inclined contact
t-4 -:·t·~·:t' ,... • oj' SANTIAGO FORMATION :·t· .:( . · .. Very dense, damp, light brown to tan, Silty, fine f--. ~ .. f-·:f: :·t SM SANDSTONE, Massive to faintly banded o ••
t-6 -::f:j::f· -· .. -Near-horizontal bedding .. ~ .... I--....... -of' • t ::,:~:: . I
I-8
TRENCH TERMINATED AT 8 FEET
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Figure A-116, Log of Trench T 61 LCG
SAMPLE SYMBOLS [J ". SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN 'HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND'TIMES.
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I PROJECT NO 06403-12-01
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0::: TRENCH T62 >-I=! Zw"" >-"" t!) °U' j:j" LIJ~ 0 <J: DEPTH ...I ::::t SOIL HZI-en • 0::"" I-<eu... IN SAMPLE 0 c CLASS <r: 1-" zu... :::ll-
NO. ::t: z ELEV. (MSL.) 120 DATE COMPLETED ' ,,11/10/99 O::cnCl) LIJ • I-Z FEET I-;:) (uses) I-I-I::::t c(..) (l)LU H 0 . HI-...J 0::: LlJcnO >-0-Oz EQUIPMENT TRACKHOE JD 55524" zw...J t!) LlJc:::1D 0::"" I:o
0-"" C u
MATERIAL DESCRIPTION
f-0 ~ "
f--ALLUVIUM f-
Stiff, moist, .dark brown, Sandy CLAY
f-I-2 --Porous, with rootlets, root-voids, burrows
f--.~ f-T62-1 CL 103.7 9.3
f-4 -l-
f--~~ f--
T62-2
f-6 -::/ l-
f--, tj/.} f-8 -TERRACE DEPOSIT f-
T62-3, (// SC Medium dense, damp,to moist, reddish-brown, 106.9 9.6
f--!?)~ Clayey, medium SAND, some coarse sand f-, T62-4 ';//' -Massive, with minor root-voids f-lO
TRENCH TERMINATED AT 10 FEET
-
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Figure A-117, Log of Trench T 62 LCG
SAMPLE SYMBOLS [J ... SAMPLING'UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION ·TEST •••• DR}VE .,SAMPLE (UNDISTURBED)
IiJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPR'ESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO 06403-12-01
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0:: TRENCH T 63 >-\.1.1' ZUJ""' >-""' t!) l-Ou • 1-1"'\ \.I.I~ ° <I: DEPTH ...l 3 SOIL HZI-H • 0::'"' SAMPLE ° c I-<t:u.. tl)u.. :::ll-IN :c z CLASS ELEV. (MSL.) _100 DATE COMPLETED 11/10/99 <1:1-' z. I-z NO. I-:::l 0:: cntl) \.I.Iu tI)\.I.I FEET H ° (USCS) I-H 3 c • HI-...l 0:: \.I.IcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l t!) lJJo:::lC 0::'"'" :E:o
0.. '"' C u
MATERIAL DESCRIPTION
f-0 ~ f--ALLtrvruM f-
Stiff, humid, dark brown, Sandy CLAY to very
f-2 -Clayey SAND f-
f--~ -Porous, with rootlets and root-voids, burrows f-
f-4 -CL-SC l-
I--~ -f-
f-6 -f-
I--f-r& I
I-8 -l-
I----------------------------------------
f-lO -~ Stiff, moist, light brown, very Sandy CLAY f-
-Massive, with scattered charcoal fragments and - -root-voids f-
-12 -~ f-
-CL f-
f-14 -Z l-
f--f-
f-16 -r? f-
f--~ ~
f-18 -. ~/ -Becomes Very stiff, very moist, light olive, very -Silty CLAY, with some fine sand
TRENCH TERMINATED AT 18.5 FEET -
-'
Figure A-118, Log of Trench T 63 , LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ .,. DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
ij ... CHUNK SAMPLE ~ .. i WATER TABLE OR SEEPAGE
NOTE: THE 'LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO 06403-12-01
Q:: TRENCH T 64 >-, UJ ZLIJ""' >-,... t!) l-Ou • ~""' 1JJ~ ° <I: DEPTH ...J ::I SOIL HZ~ H. Q::"'" SAMPLE 0 0 I-<r:u. CJ)u. ~'I-' IN ::I: Z CLASS ELEV. (MSL.) 125 DATE COMPLETED 11/10/99 -<I:~' Z. NO. I-::> O::CJ)CJ) LlJ U cn Z FEET H ° (USCS) I-H::I C. H UJ
...J 0:: UJcnO >-0.. 01-
t!) EQUIPMENT TRACKHOE JD 555 24" zLIJ...J 0::"'" I:z UJo::CQ 0
0.. "'" 0 u
MATERIAL DESCRIPTION
i-0 -
--~ ALLUVIUM ,....
Stiff, humid, dark gray -brown, Sandy CLAY ,... 2 --Massive, porous, with rootlets, root-voids and '-
-~ burrows --
-4 -CL -
- -~ -
-6 --
---Becomes moist, brown ...
'-8 -g -
--:1. 1."1-SM TERRACE DEPOSIT -10 -:1".1"\ r-'
Medium dense, damp, light reddish-brown, Silty, -...... __ ~e..d~u!pj~C2~~e_S~~!.. ~i!h_s~~e_clax __________ ," « CL
12 -" "/ Very stiff, moist, olive-brown, Sandy CLAY, r-
7. F~/; ... I'lastic, with slickensided fractures (discontinuous) -.. --v/.;; ~----------------------------------~ r-Medium dense, moist, light brown, Clayey, fme to
14 -f.// medium SAND i-
!)~ SC, -;:{ i-
16
TRENCH TERMINATED AT 16 FEET
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Figure A-119, Log of Trench T 64
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
[J ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED
IiiJ ••• CHUNK SAMPLE 7L ••• WATER TABtE OR SEEPAGE =' . .
NOTE: THE LOG OF SUBSURFACE CONDIT'IONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS. AT OTHER LOCATION~ AND TIMES.
I, PROJECT NO 06403-12-01
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0:: TRENCH T 63 >-w' ZUJ"" >-" (l) l-Ou • 1-" IJJ:>: ° <I: DEPTH ...J :3: SOIL HZI-H. 0::'" SAMPLE ° c I-<t:u.. Ulu.. ::JI-IN NO. z Z CLASS ELEV. (MSL.) 100 DATE COMPLETED 11/10/99 <1: .... ' Z. I-z I-::J (USCS) O::cn Ul Wu Ul W FEET H ° I-H:3: c. HI-...J 0:: Wcn O >-a.. Oz EQUIPMENT TRACKHOE JD 555 24" zLIJ...l C.!) we::: co 0::'"" ~o a.. 'oJ c u
MATERIAL DESCRIPTION
I-0 ~ I--ALLUVIuM I-Stiff, humid, dark brown, Sandy CLAY to very
I-2 -Clayey SAND l-
I--~ -Porous, with rootlets and root-voids, burrows l-
I-4 -~ CL-SC l-
I--~ -l-
I-6 -l-
I--I-~ .
I-8 -l-
I----------------------------------------
-10 -~ Stiff, moist, light brown, very Sandy CLAY I--Massive, with scattered charcoal fragments and - -root-voids I-
-12 -~ I-
--I-CL
14 -~ l-
I--l-
I-16 -l-
I--~ t-
I-18 -. :/ -Becomes Very stiff, very moist, light olive, very "-
Silty CLAY, with some fine sand
TRENCH TERMINATED AT 18.5 FEET -
Figure A-llS, Log of Trench T 63
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ .'.. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: ,THE'LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE.IN01CATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I·· PROJECT NO . 06403-12-01
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Q: TRENCH T64 >-UJ ZLLI'"' >-'" t!) l-Ou • 1-", LIJ~ ° <I: DEPTH -I ::I SOIL Hzl-H. 0:::'-"
IN ' SAMPLE ° 0 CLASS 1-<r:LI.. CJ)LI.. ::;)'
NO. :I: Z ELEV. (MSL.) 125 DATE COMPLETED. 11/10/99 <1:1-' Z. 1-1-
I-:::> (USCS) O:::CJ)CI) LL1u Cl)Z FEET H ° I-H::I C. HUI
-I 0::: UJCJ)O >-0.. 01-
.t!) EQUIPMENT TRACKHOE JD 555 2411 , ZLLI-I 0:::'"' l:z UJo:::al ° 0.. '"' C u
MATERIAL DESCRIPTION
I-a -
I--~ AlLUVIUM I-
Stiff, humid,. dark gray-brown, Sandy CLAY
I-2 --Massive, pprous, with rootlets, root-voids and I-~ burrows l-I--
I-4 --CL
I--~ '-
I-6 -'-
I---Becomes J;Iloist, brown -
I-8 ..,.. r?: -
I--:1. 'Il SM TERRACE DEPOSIT I-10 -:d"! ,-'
Mediu:r;n dense, damp, light reddish-brown, Silty,
I--~ " " __ 1!.!-e_d~u!!l.!~ c_o~~e _S~p!. ~i!h _s~1!.!-e_ clay __________ , ,. CL
I-12 -". :.,.-Very stiff, moist, olive-brown, Sandy CLAY, -
I--. //.~ ~,, __ pl~*l. ~i:!h_s!i'?k!:n~iE~dJ~a<:.tl!r~s_(c!i~~n~u2~s2 _____ ', ~ -/.~ Medium dense, moist, light brown, Clayey, fine to
I-14 -//-medium SAND -
Z)./. SC.
I--/.f. l-
I-16
TRENCH TERMINATED AT 16 FEET
Figure A-119, Log of Trench T 64 LCG
SAMPLE SYMBOLS o 0" SAMPLING UNSUCCESSFUL
-~ '0' DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ... 0 DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE . ~ ••• WATER TAB.LE OR SEEPAGE =' •
NOTE: 'THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO 06403-12-01
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, , e::: TRENCH T65 :>-1.1:1' ZUJ'" :>-"" C!) l-Ou • 1-", LU~ 0 <I: DEPTH -' ::3: SOIL HZI-H. e:::v
SAMPLE 0 c I-<ell.. ~lI.. ::;)1-IN CLASS <1:1-' NO. :t: z ELEV.(MSL.) 117 DATE COMPLETED 11/10/99 O::CJ)CJ) UJ' • I-Z FEET I-::;) (USCS) I-H::3: c u (/)UJ H 0 . HI--' 0:: UJCJ)O :>-0.. Oz EQUIPMENT TRACKHOE JD 555 2411 zUJ-' C!) 1:ee:::E9 e:::v I:o c u
MATERIAL DESCRIPTION :.. 0 ~ --COLLUVIUM r
CL Stiff, humid 1.0 moist, dark gray-brown, Sandy -2 -CLAY ~
--~ -
-4 -~/.V; TERRACE DEPOSIT
,...
~/.~ --v./> Medium dense, moist, reddish-brown, very Clayey, --
~/-~ medium to coarse SAND -6 -;// -Remolded clay seam, 112" thick, N20W, 25SW "-
--~:~% -Massive, with scattered pebbles and charcoal -: ~:!-SC fragments -8 --: /..t --~/.0 -
:-10 -/0 "-
--[{/~ -/f :.. 12 -r:%~ -
---Remolded clay seam, 1/2" to I" thick, N30W, ~~ ML 15SW; possible sheared contact .'
:-14 SANTIAGO FORMATION
Hard, damp, l1ght olive, Clayey SILTSTONE
-Massive, blocky, low-angle beds
TRENCH TERMINATED AT 14 FEET
-
Figure A-120, Log of Trench T 65 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL (] ••• STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE = ,
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT niE SPECIFIC B,ORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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0:: TRENCH T66 :>-Ul z:w ..... :>-..... t!) l-Ou ' 1-..... Ul~ ° <I: DEPTH ...I 3 SOIL .' HZI-H, 0::'"' SAMPLE ° 0 I-<I:u. CJ)u. :::ll-IN NO. :::I: Z CLASS ELEV. (MSL.) 93 DATE COMPLETED 11/10/99 <1:1-' z. ~Z FEET I-:::l (USCS) O::cnCJ) UlU H ° I-H 3 0, H LiJ,
...I 0:: UlcnO >-n. 01-
t!) EQUIPMENT TRACKHOE JD 555 24" Zw...l 0::'"' 1:z Ul 0::: co ° n. '"' 0 u
MATERIAL DESCRIPTION -0 ~ --ALLUVIUM I-Stiff to very .stiff, damp to moist, dark -2 -gray-brown, Sandy CLAY I-
--~ -Massive, porous, with root-voids, burrows and I-scattered charcoal fragments -4 -I----~ I-CL -6 -I-
- --Becomes stiff, very moist
,...
e.3 I -8 -,...
- -% ,...
-10 -~/./ -. -TERRACE DEPOSIT '-{;// SC
Medium dense, moist, light reddish-brown, Clayey, -12 -;(/:"/. medium SAND, with some silt, massive -
I--;!/. -
I-14 -';/~-j
~ CL SANTIAGO FORMATION I-Hard, moist, light olive, very Silty CLAYSTONE
TRENCH TERMINATED AT 15 FEET
Figure A-121, Log of Trench T 66 , LtG
SAMPLE SYMBOLS o , .. SAMPLING UNSUCCESSFUL
~ ,., DISTURBED OR BAG SAMPLE
IJ .,' STANDARD PENETRATION TEST • ,',. DRIVE 'SAMPLE (UNDISTURBED)
iJ .. , CHUNK SAMPLE ~ .. , WATER TABLE OR SEEPAGE = '
'NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED, IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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0:: TRENCH T67 > UJ ZUI'"' > ,... t!) .... °u . ....'" UJ~ 0 <I: DEPTH ....J :3: SOIL HZI-H. 0:: v SAMPLE 0 0 CLASS I-<tu.. CJ)u. :::;)1-IN ::x::: ;Z ELEV. (MSL.) 95 11110/99 <I: I-"' ;z. NO. DATE COMPLETED O::CJ)CJ) UJ· I-z .... :::;) (uscs·) o~ CJ)1JJ FEET H 0 I-H:3: HI-....J 0:: EQUIPMENT TRACKHOE JD 555 2411 ~CJ)9 >0.. Oz t!) UJUltQ 0::'" :E:o a..C:::v 0 u
MATERIAL DESCRIPTION
I-0 ~ I--COLLUVIUM -Stiff to very. stiff, humid, dark gray-brown, Sandy
I-2 -CLAY, massive, porous, with rootlets, root-voids 1:""-
f--~ CL and burrows l-
I-4 -~ l-
f---Irregular contact :1.1:\,
I-6 -'j',1 '\ TERRACE DEPOSIT I-T67-l SM Medium dense, moist, light brown to 103.4 11.4
I--T67-2 " :'1 r" reddish-brown, Silty, fine to medium SAND, some f-, clay, massive I-8 -:1· l ,...
I--'J.1 '[ --------------------------------------
I-10 -~/.} Medium dense, moist, light reddish-brown, Clayey, '"' f// medium SAND
I--?:).~ -
I-12 -/./, -<f.: SC
I--/.::( -
I-14 -{/.,1 -
'--'~ SANTIAGO FORMATION -CL -16 Very stiff, very moist, light olive to gray, Silty
CLAYSTONE, very weathered, with some sand
TRENCH TERMINATED AT 16 FEET
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Figure A-122, Log of Trench T 67 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST" '" DRIVE SAM~LE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ! ... WATER T.ABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE . DATE INDICATED. IT IS. NOT'WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER'LOCATIONS AND TIMES.
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I PROJECT NO . 06403-12-01
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0:: TRENCH T68 >-UJ zw ....... >-....... to l-Ou • 1-,.... UJ~ 0 <I: DEPTH ...I 3 SOIL Hzl-.H • 0::'" SAMPLE 0 c CLASS 1-<t:U-cnu. ;:)1-IN NO. :t: z ELEV. (MSL.) 150 DATE COMPLETED 11/10/99 . <1:1-' Z • I-z !:i' ;:) (USCS) O::(J)cn UJu cnUJ FEET 0 I-H 3 C • HI-...I 0:: UJ(J)O >-0.. Oz EQUIPMENT TRACKHOE JD 555 2411 ZLU...I to UJo:::cc 0::'-' :E:o a.. 'J c u
MATERIAL DESCRIPTION
I-0 ~ -.
I--CL TOPSOn.. I-:-/ Stiff, humid. dark bl'own, Sandy CLAY
I-2 -I ~ SANTIAGO FORMATION I--~ Stiff, moist, olive-brown, Silty CLAYSTONE l-
I-4 -~ CL -Very fractured and weathered I-
~ -___ -!l.9rizEI!t~ E~d~~&. ~O!!t~C! ___ :. _____________ . -I--·t~·T . r' Very dense, damp, light olive to brown, Silty, fine I-6 -::t: ::t: l-... SM SANDSTONE, some clay, blocky . r' f--·:f: :·t l-' •• 1!.'
I-8 :·t'~·:r:
TRENCH TERMINATED AT 8 FEET
-
..
Figure A-123, Log of Trench T 68 LCG
SAMPLE SYMBOLS o '" SAMPLING UNSUCCESSFUL'
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •.••• DRIVE SAMPL·E ~UNDISTURBED)
iJ .... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH 'LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECTNO 06403-12-01
I
I
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I
I·
I
I
I
I
I
I
I
I
I
DEPTH
. 'IN
FEET
I-0
I-
i-2
i-
,... 4
,....
,... 6
-
-
-
-
-
-
SAMPLE
NO.
~ >-w CD l-0 <I: ...J ::I SOIL 0 0 ::I: Z CLASS
I-:::J (USCS) H 0 ...J ~ CD
SM
TRENCH T 69
ELEV. (MSL.) 120 DATE COMPLETED
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
COLLUVIUM
Loose, damp to moist, dark brown, Silty, fine
SAND
-Porous, rootlets and root-voids, and some clay
-Very irregular contact ::f:l::t: :'~"J":r: SM SANTIAGO FORMATION ":~: :.~" Dense, very moist, light reddish-brown, Silty,
11111199
ZLU" Ou • HZI-~<I:~ 0::1-00 , I-OO::I wHo
l-
I-
I-
zW...J wLUaJ 0..0::""
>-" 1-" LU~ H. 0:: ...... OOu. :::ll-z. I-z wu OOUJ C. HI->-0.. . Oz ~v ::E:o C (.)
- -
\-'0" m.,:'+it--I----!-... coarse SANDSTONE . r -/---1---+---1
,... 8 -\ -Weathered, fractured ' I ~----------------------------------, ~ Hard, moist, light olive, Clayey SILTSTONE ML ---Blocky -
,... 10 --
'-
TRENCH TERMINATE!;> AT 11 FEET
Figure A-124, Log of Trench T 69 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATlO~ 'TEST ..... DRIVE SAMPLE (UNDISTURBED)'
ii:I ... CHUNK SAMPLE ~ ... WATER TABLE OR SeEPAGE ':' . .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
06403-12-01
0:: >-IJJ
§ i SOIL ~. ~ CLASS 5 ~ (USCS)
(.!)
SC
TRENCH T70
ELEV. (MSL.)----'1=8;..;;..O __ DATE COMPLETED 11/11/99
EQUIPMENT TRACKHOE JD 555 2411
MATERIAL DESCRIPTION
Fll..L
Loose, dry, .dark brown, Clayey, Gravelly SAND
I -COLLUVIUM
Stiff, humid, red-brown, very Sandy CLA Y -
I
I
I
I
I-
I
I
I
-I·
I
I
I
I
- 4 -CL I-
--I-
- 6 -
--tvIL-CL SANTIAGO FORMATION I-
Hard, damp, light olive-brown, very Clayey ,... 8 SILTSTONE / ~~------~~~---------------------------------------------~ TRENCH TERMINATED AT 8 FEET
Figure A-125, Log of Trench T 70 LCG
SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTU~BED OR BAG SAMPLE ij ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOYN HEREON APPLIES ONLY AT THE SPECIFIC BORING-OR TRENCH LOCATION AND AT THE
. DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOC~TIONS AND TIMES.
I
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I
PRnJECT NO. 06403-12-01
Ii ..
>-TRENCH T71 ..
Zw'" (!) >-"" 0 °u . 1-"" IJ.I:-: DEPTH ...J SOIL HZI-t1 • 0::'"'
IN SAMPLE 0 CLASS I-<tu. Zu.· ::JI-::J: ELEV. (MSL.) 105 11/11/99 <1:1-' NO. DATE COMPLETED O::(J)CI) LlJO I-Z FEET I-(USCS) C~ ~LIJ H .~ I-H 3
..J IJ.I(J)O >-0.. 01-EQUIPMENT TRACKHOE JD 5552411 zl.LI..J 0::'"' I:z ~c::e 0 c u
MATERIAL DESCRIPTION -. 0 ~~ CL - -
TOPSOIL ~ Stiff, humid,. dark brown, Silty CLAY, with some -2 -sand -
--ta SANTIAGO FORMATION -CL Hard, moist, olive-gray, Silty CLAYSTONE -4 --Massive, blocky -
----'.
6
TRENCH TERMINATED AT 6 FEET
..
-
,
Figure A-126, Log of'Trench T 71 LCG
SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ '" STANDARD PENETRATION TEST •••• DRIVE' SAMPLE (UNDISTURBED).
~ ... DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCAT10N AND AT THE·
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER lOCATIONS AND TIMES'-
I·
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I
I
I
'.
I
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" I
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I
PROJECT NO. 06'403-12-01
II
TRENCH T72 >-zw ..... >-" C.!l o c.J • . 1-..... LL1~ 0 DEPTH ....l SOIL HZI-H • 0::'-' SAMPLE 0 1-<l:1J.. Cl)u.. ::ll-IN :x: CLASS ELEV. (MSL.) 120 DATE COMPLETED 11/11/99 <1:1-' z • I-Z NO. I-(USCS) et:CI)CI) LL1c.J Cl)UJ FEET H i-H ::3: C • HI-....l WCl)O >-0-.oz EQUIPMENT TRACKHOE JD 555 24" ZLLI....l ~o::S 0:: '"' •. 40 .. C u'
MATERIAL DESCRIPTION "
r-0 V/ CL "
r--TOPSOll. ~ SC Stiff humid. dark ~1 "'1 'L Sandy CLAY
r-2 -TERRACE u.I:U'U:sn r-
Medium dense, moist, reddish-brown, Clayey, fine 0'
r--I~~ to medium SAND, with pebble gravel along SE 1---r-4 -T72-1 ~L-CH dinning contact
r--~~ SANTIAGO FORMATION r-
Very stiff, moist, light olive with white mottling, ..
r-6 -Silty CLAYSTONE r-
--I~ -Remolded clay seam N60W, 35SW, -1/4-1/2" I-thick, with gypsum linings -8 -~~ '-Very weathered and fractured, massive, with t-
abundant calcium sulfate --~ -
-10
TRENCH TERMINATED AT 10 FEET
-
Figure A-127, Log of Trench T 72 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :!: ... ' WATER TABLE OR SEEPAGE = '
NOTE: THE ,LOG OF SUBSURFACE CONDITIONS SHOYN HEREON APPLIES ONLY AT THE SPECIFI,C BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I PROJECTNO
I
I
I;lEPTH
IN
FEET
I-0
I l-
I-2 -
-
I l-
f-4 -
-
I
I
I
I
I
I
I
I
-
I-6 -
--
- 8
SAMPLE
NO.
06403-12-01
0:: >-L.U C!) 'I-
0 <t ' SOIL ...J :::c 0 0 CLASS Z Z I-:::::l (USCS) 1-1 0 ...J 0:: (.!)
~ ~ CL
?:; o
~L-CL
TRENCH T73
ELEV. (MSL.) 110 DATE COMPLETED 11111/99
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
COLLUVIUM
Stiff, moist, dark brown, Sandy CLAY .
-Massive with 1mm -2mm spots of gypsum (?)
SANTIAGO FORMATION .
Hard, moist, light olive, very Clayey SILTSTONE
,~ ___ -_M_as~si~ve=,~f~rn~c~ttrr~ed~ __________________ ~ ______ J/
TRENCH TERMINATED AT 8 FEET
I
I
I Figure' A-128, Log of Trench T 73
:z L.U~ >-,.... °u· 1-"" IJ.I~ ~Zt;: 1-1 • 0:: .....
<I:<r::, ~IJ.. :::::l(-0:: I-Cf) L.U • I-Z I-Cf):::c 0': Cf)LlJ lJJl-IO 1-1(-:z Cf)...J >-a.. Oz lJJlJ.lro 0::"'" :E:o a.. 0::"", '0 tJ
-
-
-
-
-
LCG
I·
I
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... 'STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iiJ •.. CHUNK SAMPLE ~ ••• WATER TABLE ,OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE'
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECT NO 06403-12-01
0:: TRENCH T74
I
I
I
I
I
I
I
I
I
I
',1
I
I
I
I
I
I
>-LU ZI.J..I"" >-'" g. I-°u· 1-,.. LU~ <t DEPTH ...J :::r:: SOIL HZI-H. 0:: ....
IN SAMPLE 0 0 CLASS .~<I:~ (1)LIo. ::::ll-NO. Z z ELEV. (MSL.) 85 DATE COMPLETED 11/11/99 o::~(1) z. I-z FEET I-::::l (USCS) l.J..I u (1)1JJ H 0 -I-H :::r:: . o • HI-...J 0:: lJ.l(1)O >-0.. O 2 EQUIPMENT TRACKHOE JD 555 24" zl.J..l...J (,!) teo::S 0::'"' :1::0
0 u
MATERIAL DESCRIPTION :... 0 ~ ,... -COLLUVIUM -Stiff, moist, dark gray-brown, Sandy CLAY
r 2 --
r -~. -
r 4 -CL -
r--~ --
,... 6 --
f---
-8 -.. /
~~~ ,.. -0~ SANTIAGO FORMATION -~~l Medium dense, damp to moist, light brown to -10 -olive, Clayey, medium SANDSTONE, very -,~;t.: SC weathered, massive -. -. .. :-~~l '-12 -w.~ -Becomes less weathered, dense :-
,.. -l2t:~~ -
:-14 r;ox"",·
TRENCH TERMINATED AT 14 FEET
-
-
Figure A-129, Log of Trench T 74 LCG
SAMPLE SYMBOLS' o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBE6 OR BAG SAMPLE ij ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: ·THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE 'SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DArE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECT NO 06403-12-01
~
I
I
I
I
I
I
I
I
I
I
I
I
I'
I
TRENCH T75 >-UJ ZIJJ"" >-,.., C,!) I-°u' 1-"" UJ~ 0 <I: DEPTH ...J 3 SOIL HZI-H. ~v SAMPLE 0 Cl CLASS I-<I:LI.. (l)LI.. :::ll-IN :I: Z ELEV. (MSL.) 98 ·DATE COMPLETED 11/11/99 <1:1-"-Z. I-z NO. I-:::l (USCS) t:t::C/)(I) ~~ cnLIJ FEET H 0 I-H 3 . HI-Uj 0 ...J ~ EQUIPMENT TRACKHOE JD 555 24" 'zC/)...J >-0.. Oz C,!) UjUJa;) ~ .... 4:0 c...~ .... Cl u
MATERIAL DESCRIPTION -0 % --ALLUVIUM I-Stiff, moist, dark brown, Sandy CLAY
e-2 -I-
--~ I-
-4 -l-
e--~ CL l-
i-6 -l-
i---Becomes more moist l-V \ l-S -l-
I--:/; , -'
10 --Irregular transitional contact -. Vv r' --~~ Soft to stiff, very moist, olive-brown, Silty CLAY -vv ~ -Very fractured, weathered, mixed texture, with -12 -~~ ~ CL-CH numerous clay seams (possible weathered Santiago) -
:--~~ ~ -
I-14 -~~ ~ -VV V
:--III CL
I-16 -SANTIAGO FORMATION -Very stiff to hard, moist, light olive, Silty
i-CLAYSTONE
-Very fractured, blocky ,
TRENCH TERMINATED AT 17 FEET
-
Figure A-130, Log of Trench T 75 LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED,)
~ ••• DISTURBED OR BAG SAMPl.E : 'iij ... CHUNK SAMPLE ~ '" WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPL1ES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND 'AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS ,AT OTHER LOCATIONS AND TIMES.
, ,
I
I PROJECTNO .. 06403-12-01
I
I
I
I
I
I,
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I
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I··
I
I
I
....
I
'I
I
~ TRENCH T76 >-W ZUI'" '.>-'"' t!) l-e u • 'I-'" w~ 0 (I: DEPTH ...J ::t SOIL Hzl-H. ~'IJ SAMPLE 0 0 CLASS 1-(1:1.1.. 001.1.. ::::ll-IN NO. ::r: z ELEV. (MSL.) 110 -DATE COMPLETED 11/11/99 (1:1-' z. I-z I-::J (uses) D::ooOO Wu Cf)LlJ FEET H 0 l-H::t o • HI-...J ~ TRACKHOE JD 555 24"
lLI(t)O >-0. Oz EQUIPMENT ,ZUI-l (!) ~D::e ~'-' :£:0'
0 u
MATERIAL DESCRIPTION
f-0 V;':: CL TOPSOIL f--~
Stiff, humid, dark brown, Sandy CLAY ..
f-2 -~ SANTIAGO FORMATION ~
~ Hard, moist, light olive mottled with white, Silty ,---
-4 -CLAYSTONE, with some sand, weathered with ,-
CL calcium sulfate (gypsum) mottling, massive
-\ -II . -Clay seam 1/8" thick, low angle and discontinuous !-.-
:-6 -f-
,... -r-
:-8
TRENCH TERMINATED AT 8 FEET
-
Figure A-131, Log of Trench T 76 LCG
SAMPLE SYMBOLS o .... SAMPLING UNSUCCESSFUL'
§§ .•. DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS -SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE'
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES;
I:
.1, PROJECT NO. 06403-12-01
0::
I
I
I
I,
1-
I
"
I
I
I
I
I'
I
I
I
I
'I
I
>-UJ C!) l-
DEPTH SAMPLE IN NO. FEET
e <J: ...J :3: e ° :r: z I-::;)
H 0 ...J 0:: t.!)
-0
I-' -
I-2 -
--
-4 -
--
-6 -
--
I-8 -
I--
I-10
-
SOIL
CLASS
(USCS)
CL
~L-MH
TRENCH T77
ELEV. (MSL.) 100 DATE COMPLETED
~
EQUIPMENT TRACKHOE JD 555,24"
MATERIAL DESCRIPTION
COLLUVIUM
Stiff, moist, dark gray-brown, Sandy CLAY;
massive, porous, with root-voids, burrows
-Becomes more sandy, moist
SANTL\GO FORMATION
Very stiff to hard, moist, light o],ive, very Clayey
11111/99
, ,
,~~S_IL~T~S~T~O~N~E~~~ ____________________ ~~,
TRENCH TERMINATED AT 10 FEET
Figure A-132, Log of Trench T 77
z: LIJ" > '"' °u' 1-" LIJ~ HZI-H. 0::"'" I-<J:LL. CIlu. ::;)1-<I:I-' z . I-z Q::CIlCll UJu CIlUJ I-H:3: O. HI-I.LJCIlO >0.. Oz zUJ...J ~o::e 0::"'" :E:o
0 U
-
-
-
-
-
-
-
LCG
SAMPLE SYiv1:aOLS [] '" SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK'SAMPLE ! ... WATER TABLE OR SEEPAGE
NOTE: ,THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
.. DATE' INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECT NO
I
I
I
I
I
I
I
I
I
I
I'
I
I
I
-
-
I-
I-
I-
I-
t-
I-
I-
f-
I-
I-
I-
I-
I-
I-
DEPTH SAMPLE IN NO. FEET
0
-
2 -
-'
4 -
-
6 -
-
8 -
-
10 -
-
12 -
-
14 -
-
16
06403-12-01
0:: TRENCH T78 >-1.1.1 tD l-° <I: ..l ::I SOIL 0 Cl CLASS :I: , Z ELEV. (MSL.) 180 DATE COMPLETED I-::J H ° (USCS)
..l 0:: EQUIPMENT, TRACKHOE JD 555 24" tD
MATERIAL DESCRIPTION ' ,
:-1. 'Il
"1"-1'1 All.UVIUM
:'j r \' Loose, humiq, dark brown, Silty, fine SAND
-Very porous, with rootlets, root-voids, burrows
:1.-"1-throughout
11'1
:'1 r \,
:1· .1-J.i 'f,
:1 f \ \ SM
:1· l l~'1 -Contains trace clay, lighter brown
:1 .r.I'
:.1. ·t:i,
1"1
:'1 t-!'
:1· ."1-:d'i
-:l: Y" SM TERRACE DEPOSIT
Medium dense, moist, light brown, Silty, fme
SAND
-Minor root-voids
TRENCH TERMINATED AT 16 FEET
I· . Figure A-133, Log of Trench T 78
"
ZL1J" >-"" ou' 1-" I..LI~ HZI-~ " 0:: ...... I-<I: LI. zu. :::)1-' 11/11/99 <I: I-'-O::cnC/) 1.1.1" I-Z C~ cn LU t-H::I HI-' L1J(t)0 >-0.. Oz zL1J..l ~o::e 0::""', I:o
C u
-
,...
-
I-
I-
l-
I-
l-
l-
I-
l-
l-
I-v
l-
'l-
LCG
I
I'
SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... STANDARD. PENETRATION TEST •• ,. DRIVE SAMPLE (.UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iJ '" CHUNK SAMPLE ~,: •• WATER TABlE, OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH· LOCATION AND AT THE
DATE INDiCATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.'
I
I PROJECTNO . 06403-12-01
I
I
I
I
I
I
I
I·:
I
I
I
.'. ,,'
I
'. I
I
I
I
0:: TRENCH T79 >-UJ 25Ul~ >-" (.!) l-I-" UJ~ 0 <I: HUI-DEPTH ..J :3: SOIL I-Zu. H. o::.v
SAMPLE 0 Cl CLASS (t<l:, (J)u. ::JI-IN ::I: z ELEV. (MSL.) 150 DATE COMPLETED 11/11/99 a::1-(J) z. I-z NO. I-::J (USCS) 1-(J):3: UJu ~UJ FEET H 0 WHo Cl.
..J 0:: EQUIPMENT TRACKHOE ID 555 24" zen..J >-0-o!z (.!) UJUlaJ 0::'"' 1:0 a.. 0:::: v Cl (.)
MATERIAL DESCRIPTION
I-0 ~ I--ALLUVIUM I-
Stiff to very stiff, humid to damp, reddish-brown,
I-2 -very Sandy CLAY I-~ CL -Massive, porous, with root-voids and burrows l-I--
I-4 --% I---------------------~------------------:1-'.1-
I-6 -1'\'\ SM Medium dense, damp, brown, Silty, fme SAND :-
-Porous, with root-voids, burrows
I--:1 ~·I· --
l-S -~/.) TERRACE DEPOSIT ;-
I--~// Medium dense, moist, reddish-brown, very Clayey ;-
10 -rt/-~ SAND to Sandy CLAY
""" I-;//. -Massive, with minor porosity and slight coatings
-./~~ of calcium carbonate/sulfate -
-12 -~:! -: /.-" --t:/.'0 -SC-CL -14 -(f -
--~/~ -
-16 -70 -~/.~ --/fL -
I-18 ~/ ."-"
TRENCH TERMINATED AT 18 FEET
-,
Figure A-134, Log of Trench T 79 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURSED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE CUNDIST~RBED)
iJ .... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG·OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED.' IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE. CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
--
I
I PROJECT NO . 06403-12-01
I
-I
I
I
I
I
I
I
I·
I
I
I
I'
I
I
I,
I
~ TRENCH T80 >-UJ Zw'" >-,... t!) l-Ou • 1-"" UJ~ ° <t: DEPTH ...I ::3: SOIL Hzl-H • ~"" SAMPLE ° c I-<t:u. cnu. :;)1-IN :::t: Z CLASS ELEV. (MSL.) 158 DATE COMPLETED 11/11199 <I: 1-' z . I-z NO. I-:;) ~cncn LLlu Cl)LLI FEET H 0 (USCS) I-H::3: c. HI-...I ~ LlJcnO '0.. Oz t!) EQUIPMENT TRACKHOE JD 555 2411 zUJ...I >-"", :Co LIJ~lXl ~ a., v C u
MATERIAL DESCRIPTION
0 ~ I--ALLUVIUM I-
Stiff, humid .to damp, dark brown, Sandy CLAY
I-2 -I-~ CL
I--l-
I-4 -l-
I--. ~ -Becomes soft to stiff, moist, reddish-brown, very I-
-6 -Sandy CLAy I-
-Porous, with root-voids, scattered charcoal --fragments I-~ , -8 -I-
-I-
-10 -I-~ - -
I-
12 -r-
-~. I-
-14 --Becomes more sandy, less porous roo
- -~ ...
-16 --
--V; -
I-18
TRENCH TERMINATED AT 18 FEET
"
Figure A-135, Log of Trench T 80 LeG
, -
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ .•• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST • ' ••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :!: ..• WATER TABLE OR SEEPAGE ='
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LQCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECTNO
I
I
DEPTH
IN
FEET
-
I-0 ,I l-
I-2 -I l-
i-4 -
-
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....
SAMPLE
NO.
06403-12-01
0:: >-UJ t!) l-° <I: ...J :1 SOIL
° 0 ::I: Z CLASS
I-:J (USCS) H ° ...J 0:: t!)
SC
ML
TRENCH T 81
ELEV. (MSL.) 190 DATE COMPLETED
EQUIPMENT TRACKHOE m 555 24"
MATERIAL DESCRIPTION
TOPSOIL
Loose, dry, dark brown, very Clayey SAND
SANTIAGO FORMATION
Hard, damp, very light olive to brown, Clayey
SILTSTONE, with some sand, massive to near
horizontal beds -
TRENCH TERMINATED AT 7 FEET
I· Figure A-136, Log of Trench T 81
ZUl""' >-,....
Ou • 1-,,", UJ:-: HZI-~ . 0::'" I-<tLl. ·ZLI. :;:)1-11111199 <1:1-' \.1l • I-z O::cn(J) C U (J)\.1l I-H:1 . HI-UlcnO >-a.. Oz ZUI...J UJo::tO 0:: ..... l:o a.. '"! 0. C,,)
I-
I-
LCG
I SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE .(UNDISTURBED)
I
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES •.
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I PROJECTNO 06403-12-01
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0:: TRENCH T 82 )-w 5l.l.1r: )-. " (..!) t-o <I: HUt-I:i"" I.LI~ DEPTH SAMPLE ..J ::3: SOIL t-Z L1-(I)" 0::'"
IN 0 Cl CLASS <I:<J:, zu. :;:)t-NO. :x: z ELEV. (MSL.) 175 DATE COMPLETED 11/11199 0::1-(1) 1.Ll" I-z FEET I-::> (USCS) t-(I)::3: Cl~ (l)w H 0 WHo Ht-..J 0:: EQUIPMENT TRACKHOE JD 5.55 24" z(/)..J )-0.. Oz (!) wl.l.la:! 0::'"' ;1::0 0..0::..., Cl U
MATERIAL DESCRIPTION -0 ~ - -
ALLUVIUM -Stiff, damp,. dark brown, very Sandy CLAY
I-2 --Very porous, with root-voids, burrows -
I--~ -
I-4 --
'1--~ -I-CL
I-6 -l-
f--I-~ I I-8 -l-
I--l-
f-10 -% Jil SM
I--}~'I TERRACE DEPOSIT l-
• -~_Yt Medium dense, moist, light brown, Silty, coarse
I-12 -~/} ... SAND, with some fine GRAVEL . ,.
~----------------------------------,
f--SC Medium dense, moist, reddish-brown, Clayey, fine '-{;(/ to medium 'SAND, massive -I-14 -v.'?~ -
f-
TRENCH TERMINATED AT 15 FEET
-
Figure A-137, Log lof Trench T 82 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENJ:;TRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ]! .•. WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE . DATE IND1CATED. IT IS NOT WARRANTED TO BE ,REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO 06403-12-01
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0::: TRENCH T83 >-UJ zw ..... >-..... t!) l-Ou • 1-", w~· ° <t DEPTH -' :3: SOIL HZI-H • 0:::'"' SAMPLE D 0 CLASS I-<t:u. enU. :::JI-IN :I: z ELEV. (MSL.) 130 DATE COMPLETED 11/12/99 <tl-' z. I-z NO. ~ :::J 0:: en en Wu enUJ FEET D (USCS) I-H:3: O. HI--' 0:: UJenD >-Il.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ-' t!) ~o:::S 0::""" 7i:0
0 u
MATERIAL DESCRIPTION
I-0 ~ I--. COLLUVIUM t-
Very stiff, moist, dark olive to brown, very Sandy
I-2 -CLAY t-..
I--~ -Massive, porous, with root-voids, rootlets t-CL
I-4 -t-
I--~ t-
I-6 -t-
I--: ./ -Transitional, near-horizontal VVv CL 8t~ I TERRACE DEPOSIT (7) I-8 -t-
[vl/v Stiff, very moist, light olive, Silty CLAY
I--v.~. SM ~ ... __ -Y~F'i.l"~a!hE~c!.,~it!! ~i!C~I!.tip.~oES_cla1 ~e~ _______ , ,.
I-10 Medium dense, damp, light reddish-brown, Silty,
medium SAND, with some clay
TRENCH TERMINATED AT 10 FEET
-
Figure A-138, Log of Trench T 83 LCG
SAMPLE SYMBOLS ~ ••• ~AMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE :r: ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT 1's NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-0 1
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0:: TRENCH T84 >-l.I.I ZUJ"" >-.-. (!) l-ou' 1-...... 'IJ.I~ ° <I: DEPTH ..J :3: SOIL I-IZI-1-1. 0::""
IN SAMPLE 0 c CLASS 1-<I:lJ.. ~lJ.. ::;'1-:I: z ELEV. (MSL.) 170 DATE COMPLETED 11/12/99 <I: I-"-NO. O::CJ)CI) 1.1.1' I-Z FEET I-::J (USCS) 1-1-!:3: cc.: Cl)UJ 1-1 0 1-11-..J 0:: TRACKHOE JD 555 24"
UJCI)o >-0.. oz EQUIPMENT zUJ..J t.!) UJo:::c:l 0:::"" ::Co
0.. "" C u
MATERIAL DESCRIPTION -0 ~ --COLLUVIUM r-
2
Stiff, damp ~o moist, dark brown, Sandy CLAY .... --CL
--0 r-
r-4 -. "/
I r--SANTIAGO FORMATION " r-
CL Stiff. very moist, olive-brown, Silty CLAYSTONE,
r 6 -very weathered, fractured, with discontinuous r-
.... -~ slickensided clay seams. r-
r-8
TRENCH TERMINATED AT 8 FEET
..
-
Figure A-139, Log of Trench T 84 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE iiJ .•. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: ·THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE.
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER'LOCATIONS AND TIMES.
I,
I' PROJECT NO 06403-12-01
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0:: TRENCH T85 >-W ZLIJ'" >-" (.!) l-Ou • 1-...... LIJ~ ° <t DEPTH ..J :J: SOIL jjZt;: H. 0::'"" SAMPLE 0 0 <r: <t, enu.. :::If-IN NO. J: Z CLASS ELEV. (MSL.) 175 DATE COMPLETED 11/15199 o::l-en ~u, "'Z FEET I-:::l (USCS) l-en:J: en Ul H 0 WHO ., , Hf-..J 0:: EQUIPMENT TRACKHOE JD 555 24" zen..J >-0.. Oz C,!) LlJWCC 0::'" l:o a.. 0:: ...... 0 'U
MATERIAL DESCRIPTION -0 ~ --COLLUVIUM -Stiff, moist,_ dark olive-brown, Sandy CLAY -2 --
-~~ -T85-1 CL
4 -I-
--~ l-
I-6 -l-.. -Irregular transition inclined southeast . I--.:~: ::~: ~ ::f:l:~: SANTIAGO FORMATION 1
I-8 -I-T85-2 ·r1··f SM Medium dense, moist, light brown, Silty. very fine
I--:;~;~::t: SAND~TONE, with trace clay, massive l-
I-10 . .. -Becomes dense, blocky, more sandy
TRENCH TERMINATED AT 10 FEET
-
Figure A-140, Log of Trench T 85 LCG
SAMPLE SYMBOLS [J •.. SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE" SAMP'LE (UNDISTURBED)
iJ ... CHUNK SAMPLE " ~"" WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR ,TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER'LOCATIONS AND TIMES.
I
I PROJECT NO , , .. 06403-12-01
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~ TRENCH T 86 >-LIJ ZLLI'" >-r.. (!) I-1-.", UJ~ 0 <I: °u . DEPTH ..J :3: SOIL Hzl-H. ~v
IN SAMPLE ° c CLASS 1-(tLL. cnu. ::::ll-
NO. :x: Z ELEV. (MSL.) 143 DATE COMPLETED 11/15/99 <1:1-' ffi • I-z FEET I-::::l (Uses) ~(J)cn c~ cnLIJ H 0 I-H:3: HI-..J ~ LIJ(J)O >-a... Oz EQUIPMENT TRACKHOE JD 555 24" zLLI..J (!) ~Ct::e ~"" :E:o ·
C u
MATERIAL DESCRIPTION ..
-0 ~ --COLLUVIUM :-
Stiff, damp, dark gray-brown, Sandy CLAY, -2 -massive, porous, with rootlets and root-voids and r-
--~ burrows I-
CL
I-4 -l-
I--~ l-
I-6 -I-
r--~, l-
I-8 -I-o • "
I--V;. TERRACE DEPOSIT (?) l-
f-10 -T86-1 rg SC-CL Stiff, very moist, reddish-brown, v~ry Clayey, fine I-
SAND, massive, with scattered fme gravel 104.7 20.6
f--:;;: I-
T86-2 -Transitional, near-horizontal contact f-12 -
II! I--SANTIAGO FORMATION I-
14 -
Very stiff, very moist, olive-brown, Silty
r-CL-CH CLAYSTONE, ve.-y weathered, fractured, with I-
T86-3 discontinuous clay seams 101.4 23.3 --f-
T86-4 -Becomes olive-gray
-16
TRENCH TERMINATED AT 16 FEET
Figure A-141, Log of Trench T 86 LeG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PEN~T.RATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ '" DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE ' ~ .' •• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECl'FIC BORING OR TRENCH LOCATION AND AT THE
DAT= INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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'. I PROJECTNO 06403-12-01
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0:: TRENCH T87 :>-UJ ZUI ..... :>-,..., t!) l-Ou • 1-..... LU~ ° <I: DEPTH -I 3 SOIl. HZI-H. 0:: ...... SAMPLE ° CI CLASS I-<tLl. ~lJ.. :::ll-IN :I: Z ELEV. (MSL.) 138 DATE COMPLETED 11/15/99 <1:1-' NO. 0::c.nC/) LU • I-z FEET I-::J (USCS) c,": c.nUJ H 0 I-H 3 H ..... -I 0:: TRACKHOE JD 555 2411
1Jlc.n0 :>-c.. Oz EQUIPMENT ZLU-I t!) It:o::S 0::'"' ~o
0 c.J
MATERIAL DESCRIPTION
I-0 ~ I--COLLUVIUM I-
Stiff, damp,. dark gray-brown, Sandy CLAY
I-2 -CL -Massive, porous, with rootlets, root-voids and l-
I--« burrows l-
I-4 -' '/ -Becomes moist to very moist :1· '-l
I--l.~ 'I SM TERRACE DEPOSIT . I-Medium dense, damp, light reddish-brown, Silty,
I-6 -:'1 t'I' fine SAND, with some clay I-
~ -:1. .,l ~
;.";;'".1 --------------------------------------:
~ 8 -';';.j Medium dense, damp, reddish-brown, Clayey, fine ~
--f// SAND to very Sandy CLAY, massive, blocky, with -T87-1 ?)~ SC-CL scattered tine gravel and grit, some porosity, with 116.3 15.4
~ 10 -T87-2 /./. scattered rootlets and root-voids -.
~ -//;' -
-12 -/:' :I -!'/..-' --~/.0 -Scattered small fragments of charcoal -
'-14 -(~ -
--~/-r:; -
-16 -Yf l-v: 0/ v:/.~ -
TRENCH TERMINATED AT 17 FEET
-
... ..
.,
Figure A-142, Log of Trench T 87 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ... DISTURBED OR BAG SAMPl.E iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE l.OG OF 'SUBSURFACE CONDITIONS SHOWN'HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATI.ON AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS, AND TIMES.
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I, PROJECT NO. 06403-12-01
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e::: TRENCH T88 >-UJ ZUJ""" >-" (..!) I-0 <I: °u . 1-,...., UJ~ DEPTH -J :3: SOIL ' HZI-H. e:::v
IN SAMPLE 0 c CLASS 1-c:IJ.. (t)1J.. ::ll-::J: Z ELEV. (MSL.) 145 DATE COMPLETED 11/15/99 <1:1-' z. NO. I-::::::l e:::(t)(I) UJ u I-z FEET H 0 (uses) I-H:3: o. (t)UJ HI--J e::: EQUIPMENT UJ(t)o 'c.. Oz (..!) TRACKHOE JD 55524", zw-J ~ .... ~c::e :2::0 c u
MATERIAL DESCRIPTION
f-0 ~ .
,... -COLLUVIUM -Stiff, moist. dark gray-brown, Sandy CLAY
f-2 --Massive, porous, with rootlets, root-voids and -~ burrows ,... --
-4 -CL I-
--~ I-
-6 -I-
"
- -
I-' ,
& I -8 -I-
-/. V
10 -~~~ TERRACE DEPOSIT I-
~j~ CL-CH Soft to stiff, very moist to wet, light olive-brown, --Silty CLAY, with some reddish-brown sand lenses, l-
f-12 -~~~ and discontinuous clay seams, almost plastic 'I-~~~ f--~ CL
f-14 SANTIAGO FORMATION
Very stiff, very moist, light olive-gray, Silty
CLAYSTONE
-Very weathered, with discontinuous clay seams,
very fractured
TRENCH TERMINATED AT 14 FEET
Figure A-143, Log of Trench T 88 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE , I ... WATER TABLE OR .SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE· DATE INDICATED. ~T IS NOT WARRANTED 'TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I
I PROJECT NO. 06403-12-01
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0::: TRENCH T 89 >-1.1.1 ZUJ'"' >-" CD l-Ou • .1-I.I.I~ ° <t: H" DEPTH -l ::t SOIL H:z:1-0::: v SAMPLE I-<I:u.. CJ)' ° 0 CLASS zu.. ::ll-IN NO. :t: z ELEV. (MSL.) ·123 DATE COMPLETED 11/15/99 <1:1-' 1.1.1' I-z I-:::l (USCS) O:::cn tn 0': tnUJ FEET H ° I-H::t HI--l 0::: I.I.ICJ)O ~a.. Oz EQUIPMENT TRACKHOE JD 555 2411 zUJ-l CD g: o::e 0::: v ';:0 o· u
MATERIAL DESCRIPTION
f-0 0. - -
COLLUVIUM -
Stiff, damp to moist, dark gray-brown, Sandy .. -2 -CL CLAY . -
-~ I-
-4 -. '/
I ~ -SANTIAGO FORMATION . roo
~ CL Stiff, very moist, light olive-brown, Sandy ..
6 -CLAYSTONE, very weathered; fractured roo ~ ~ ..
-roo
8 ~~ -Becomes hard, moist, olive, Silty CLAYSTONE, -roo -fractured, blocky, massive -
TRENCH TERMINATED AT 9 FEET
-
Figure A-144, Log of Trench T 89 LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH. LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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0:: TRENCH T 90 >-IJ.I ZLLI""' >-'" (!) l-Ou • 1-"" IJ.I~ 0 <I: DEPTH ..J :3: SOIL HZI-H. '0::'"' SAMPLE 0 0 I-<I:u. C/)u. :::ll-' IN ::I: Z CLASS ELEV. (MSL.) 230 DATE COMPLETED. 11/15199 <1:1-' z. I-Z FEET N.O. l-=> O::enCl) IJ.IU C/)IJ.I H 0 (USCS) I-H:3: o .. HI-IJ.I 0 ..J 0:: EQUIPMENT TRACKHOE JD 555 24" zen..J >-0-Oz (!) .. IJ.ILLl IO 0::""' 1:0 O-~'"' 0 u
MATERIAL DESCRIPTION -0 » '--CL TOPSOIL ~
Stiff, humid! dark gray-brown, Sandy CLAY
r 2 -~~I ~ -CL SANTIAGO FORMATION """ Hard, damp, olive, Silty CLAYSTONE; very
~ 4 -• f r ., fractured and weathered .. r ---\ ., .j ... --Near-horizontal bedding -contact I '--::f:{~: ~----------------------------------, --r -t SM Very dense, damp, light olive to brown, Silty, -6 -... coarse SANDSTONE, with trace clay, blocky -: ... ~.: , ---r "f -... . ~ .. . :[: ::~: , -8
TRENCH TERMINA'I:~D AT 8 FEET
-
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Figure A-145, Log of Trench T 90 LCG
SAMPLE SYMBOl,.S o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDI~TURBED)
~ ••• DISTURBED OR BAG SAMPLE ~ '" CHUNK SAMPLE ~ .... WAT.ER. TABLE OR SEEPAGE =
NOTE: THE LOG'OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
. DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO. 06403-12-01
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0:: TRENCH T 91 >-1.1.1 ZUl'" >-...... (.!) ~ Ot.) • 1-", Ul~ 0 DEPTH ..J ::I SOIL HZI-H. 0::'" SAMPLE 0 ° CLASS 1-(tLL. (l)LL. ::ll-IN :J: Z ELEV. (MSL.) 130 DATE COMPLETED 11115199 ~I-~ Z • I-z NO. I-::l (USCS) I-(I)'::I Ult.) (/)1.1.1. FEET, H 0 UlHO O. HI-..J 0:: EQUIPMENT TRACKHOE JD 55524" zC/)..J >-0.. Oz (.!) UlUl ec 0::'"" :E:o . 0.. 0:: v 0 U
MATERIAL DESCRIPTION
I-a ~ r--COLLUVIUM l-
Very stiff, damp to moist, dark gray-brown, Sandy
I-2 -CLAY, porous, with rootlets, root-voids, burrows i-
I-Z CL -,-
r-4 -0 -
I--» CL TERRACE DEPOSIT '-6 -l-Very stiff to hard, moist, reddish-brown, very
'-Sandy CLAY, massive, blocky, with some porosity,
I with rootlets, root-voids
TRENCH TERMINATED AT 7 FEET
-
Figure A-146, Log of Trench T 91 LCG
SAMPLE SYMBOLS [] .,. SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ••• '. DRIVE SAMPLE (UNO ISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER 'TABLE OR SEEPAGE =
NOTE: THE LOG OF 'SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES:
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I PROJECTNO 06403-12-01
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0:: TRENCH T92 >-UJ Z\.IJ"=' >-" t!) l-Ou • 1-" LL1~ ° <I: DEPTH -l :3: SOIL .HZI-H. 0::'"'
. IN SAMPLE 0 0 CLASS
1-(tLl.. ~LL.' , ::ll-
NO. ::r: Z ELEV. (MSL.) 225 DATE COMPLETED 11115199 <1:1-' UJ' tiZ . FEET I-::l O::cnCl) O~ H 0 (USCS) I-H:3: HLLI
-l 0:: UJcnO >-0-01-
t!) EQUIPMENT TRACKHOE JD 555 24" z\.IJ-l 0:: ..... :E:z ~~e 0 ,0 tJ
MATERIAL DESCRIPTION
I-0
_ ..
I--~ CL TOPSOn... I-
Stiff, humid, dark gray-brown, Sandy GLAY
" I-2 --:/ l-
I--::~:~::t: SANTIAGO FORMATION I-'t "f ' , , Dense, damp, light tan, Silty, fine to medium -4 -.: : ~: .. I-.. 'f" .. ·t· SANDSTONE, massive,)locky
'--: ..... ~.: ' I-r' ~ : .. ( :
c-6 -''( -t -Near-horizontal bedding I-, , , SM :. ·l·: c--T -f c--, . . . ,
., .~." I .. 8 -"'f--r I--.. ~" . . --, -r -'f' I--.. -I-::':~::f: I-10 . ..
TRENCH TERMINATED AT 10 FEET -
"
,
-
Figure A-147, Log of TreD:ch T 92 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ .. _ STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• 01 STURBED OR BAG SAMPLE iJ _. _ CHUNK SAMPLE ~ • _. WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLl'ES ONLY AT THE'SPEC-IFIC BORING. OR "TRENCH LOCATION AND AT THE
, DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCAT~ONS AND TIMES.
-I PROJECT NO 06403-12-01
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0:: TRENCH T 93 >-IJJ ZUJ"" >-'"' (!) I-°u' 1-"" Ul~ 0 <I: DEPTH -l :! SOIL HZI-H, 0:: .....
-IN SAMPLE 0 Cl CLASS ~<I:!t CJlu. ~I-NO. Z z ELEV. (MSL.) 195 DATE COMPLETED 11/15199 -Q:I-cn Z.
FEET I-::l (USCS) I-CI):! UlU -cnz
H 0 UlHO O. HIJJ
-l 0:: -EQUIPMENT zCl)-l >-a.. 01-TRACKHOE JD 555 24" :E:z (!) IJJ UJ CO 0::'"" 0 0.0:: ..... 0 U
MATERIAL DESCRIPTION -0 ~ --TOPSOIL -~ CL Stiff, humid .to damp. dark brown, Sandy CLAY
I-2 -I-
--~ CL -4 -SANTIAGO FORMATION I-
-::krt: " Firm to hard, damp, olive, very Silty, r - -
\ CLAYSTONE I I-··t· .. ( SM \. __ -Y~Fi. !r~c!U!eEt. ~i~_c~~.i~x; ~!f~~]inin$~ ________ / . . .
6 . . . --::f:~::t: I-
Dense, damp, light brown to olive, Silty, medium -"-SANDSTONE, with some clay, massive, blocky
TRENCH TERMINATED AT 7 FEET
--
--
-. . . ..
-
Figure A-148, Log of Trench T 93 __ LCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
iiJ '" CHUNK SAMPLE ~ .••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. iT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I. PROJECT NO. 06403-12-01
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:
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I
DEPTH SAMPLE IN
FEET NO.
0:: TRENCH T94 >-UI ZUl"" >-. " t!) l-Ou • 1-"" UJ~ ° (I: ...l :::3: SOIL HZI-H • 0::""
° Cl CLASS I-(I:I..L. enl..L. ~I-:c z ELEV. (MSL.) 175 DATE COMPLETED 11115/99. (I: 1-' z. I-z I-~ 0:: en (f). UJ u enUJ H 0 (USCS) I-H:::3: Cl • HI-...l 0:: UJenO >-0.. Oz EQUIPMENT TRACKHOE JD 55524" zUJ...l t!) UJo::o::I 0::"" :1::'0
0.. "" Cl u
MATERIAL DESCRIPTION
I-0
I--
I-2 -
I--
I-4 -
I--
I-6 -
I--
I-8 -
I--
I-10 -
I--
I-12 -
I--
I-14
~ ALLUVIUM I-
Stiff, moist,. dark brown, Sandy CLAY
-Porous, with rootlets, root-voids and burrows I-~ I-CL
I-
@ 1-'
I-::/
:1-Il TERRACE DEPOSIT l"f I-
Medium dense, damp, light yellow-brown to
:'j r I-orange, , Silty, fine SAND, some porosity, l-
SM root-voids :1-l I-
"1".' "f r
.. ~ ~'I' --------------------------------------V/ CL Medium dense, moist, reddish-brown, very Sandy t-
CLAY, massive
TRENCH TERMINATED AT 14 FEET
Figure A-149, Log of Trench T 94 LeG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPL~ ~ .;. WATER TABLE OR SEEPAGE
NOTE: THE 'LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DArE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.· :
I
I PROJECTNO 06403-12-01
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I
0:: TRENCH T95 >.-LJJ Zw'" >-'" t.!) 1-' °u ° 1:-"" LJJ~ 0 <I: DEPTH ....I :3: SOIL HZI-t! ° 0::"-'
IN SAMPLE 0 0 CLASS I-<t:u.. ZLL.· ::ll-NO. Z z ELEV. (MSL.) 193 .. DATE COMPLETED 11/15/99 <I: 1-' Ul O I-z '1-::l D:::cnCl) FEET (USCS) ·I-H:3: O~ toLJJ H 0 HI-....I 0:: UlcnO >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zw..J t.!) Ifa::S 0::'"' :1::0
Cl u
MATERIAL DESCRIPTION ...
f-0 ~ f--ALLUVIUM I-
Soft to stiff, very moist, dark brown, Sandy . -
I-2 -CLAY, massive, porous, with root-voids, rootlets I-
.f--~ ,..
I-4 -r-
. f--~ ;-
I-6 -CL r-
'--I-~ ,
;-8 -I-
;--I-
r-IO -Z ...
I--...
;-12 -./ -Very irregular, sharp contact
IJ CL-CH SANTIAGO FORMATION I---Stiff, very moist, olive mottled with white and
i-14 brown, Sandy CLAYSTONE
-Very weathered, with slickensided, remolded clay
seams throughout
TRENCH TERMINATED AT 14 FEET
-
Figure A-ISO, Log of Trench T 95
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)'
~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING.OR TRENCH LOCATION. AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.'·
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I
PROJECT NO. 06403-12-01
0:: TRENCH T96 >-UJ ZUl ..... >-" t!) l-I-", UJ~ 0 <I: °u . DEPTH ...J :J: SOIL j::!·:zt H. . 0:: ......
IN SAMPLE 0 C CLASS <I: <I: "-C/)u. :;:)1-
NO. :::t: z ELEV. (MSL.) 200 DATE COMPLETED 11/15199 0::1-C/) . ffi • I-Z FEET I-:;:) (Uses) I-C/):J: c~ C/)UJ H 0 UJH o HI-...J 0:: EQUIPMENT TRACKHOE"JD .. 55524" zC/)...J >-0.. Oz t!) UJLU£C .0:: ...... :E:o 0..0:: ....... C CJ
MATERIAL DESCRIPTION -0 ~ I--ALLUVIUM -
Soft to stiff, .very moist, dark brown, very Sandy
I-2 -CLAY l-
I--~ I-,.
I-4 -l-
I--~ I-0
CL ..
i-6 -l-
i--l-
I-8 .-0 l-
i--~ l-
I-10 -::~;~::t, SM SANTIAGO FORMATION I--"f' 'r I-:~ :f: : Dense, damp, light olive-gray, very Silty, fine ".,." •• 9. I-12 "-SANDSTONE, with some clay /'
TRENCH TERMINATED AT 12 FEET
-.
Figure A-IS1, Log of Trench T 96 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUC~ESSFUL
§§ .••• DISTURBED OR BAG SAMPLE"
IJ ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIve OF SUBSURFAce CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I. PROJECT NO 06403-12-01
I
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I
I
0:: TRENCH T97 >-UJ t5UJ~ >-r.. t!) I-I-~ w~ 0 <t: HUI-DEPTH ..J 3 SOIL I-Zu.. H. 0::'"'"
IN SAMPLE 0 0 CLASS <I: <1:, U'lu.. :::ll-NO. ::t: z ELEV. (MSL.) 210 DATE COMPLETED .11/15199 0::1-U'l z. I-z FEET I-:::l (USCS) l-en 3 Wu U'lUJ H 0 WHO 0. HI-..J 0:: EQUIPMENT TRACKHOE JD 5552411 zen...J >-0.. Oz t!) WUJIXl 0::'"' ll:o .. 0..0:"" 0' U
MATERIAL DESCRIPTION ' .. ' -0 /./ CL TOPSOIL . --~ Stiff, humid, dark brown, Sandy CLAY -2 -SANTIAGO FORMATION -
r--~ Hard, damp, olive-gray, very Silty CLAYSTONE, -massive to horizontal beds, very fractured and
f-4 -CL weathered -
f----
r-6 -~ -..
I---Becomes very hard, moist, less fractured and r-
I
f-8 weathered ..
TRENCH TERMINATED AT 8 FEET
-
Figure A-152, Log of Trench T 97 lCG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED)
IiJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
. .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCAT~ON AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES;
1
I PROJECTNO , 06403-12-01
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I,
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i ' ..
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'I
0::: TRENCH'T98 >-UJ Z'w'"' >-'"' C,!) l-Ou " 1-"" IJJ:-: 0 <t , DEPTH ...I :::t SOIL Hzl-H " 0:::'"'
IN SAMPLE 0 0 CLASS I-<t:u. ~u. ::ll-
NO. ::I: z ELEV. (MSL.) 210 DATE COMPLETED 11/15/99 <I: .... ' Ill" I-z FEET I-::l (USCS) O:::cn(J) oc.: (J)UJ
H 0 I-H:::t HI-...I 0::: EQUIPMENT
LL1U)o >-0.. Oz C,!) TRACKHOE JD 555 24ft zUJ...I 0:::,'"' :£:0 LL1o::t:C a.. '"' 0 u
MATERIAL DESCRIPTION -0 ~ --COLLUVIUM "-
Soft to stiff, .very moist, dark brown, Sandy CLAY -2 --Porous, with rootlets, root-voids and burrows -
- -~ ..
CL -
I-4 -t-
I--r0 l-
I-6 --Irregular transitional contact, with fragments of
"f"'T Santiago formation · r' . , .
I--:·t· .:~: SM SANTIAGO FORMATION t-
" ... " .. .. "~,, " Delise, damp, light brown to olive, Silty, fme .. I-8 -• t T I-, , , :. "~": " SANDSTONE, massive, blocky, with trace clay r 0 f I--o 0 • -Near-horizontal bedding I-o 0 0 " ~"" ·:C: ::~~ I-10 • • 0
TRENCH TERMINATED AT 10 FEET
:
Figure 1\-153, Log of Trench T 98 LCG
SAMPLE SYMBOLS, [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE CUN~ISTURBED)
iJ ... CHUNK SAMPLE y: ... WATER TABLE OR SEEPAGE =-
NOTE, THE LOG OF SUB~URFACE CONDITIONS SHOWN HEREON APPLIFS ONLY AT THE SPECIF.IC BORING, OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
!
-I
I PROJECT NO 06403-12-01
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-
I
0:: TRENCH T99 >-UJ ZIJJ'" >-'" CD l-Ou • 1-", UJ~ ° <I: DEPTH ...J :3: SOIL HZI-, H. 0:: ......
SAMPLE ° '0 CLASS I-<J:LI.. 'cnLL. :;:)1-IN NO. :x:: Z ELEV. (MSL.) 175 DATE COMPLETED 11/15/99 <1:1-'-, z. I-z I-:::l (USCS) O::cncn UJu cnUJ FEET H 0 I-H:3: c. HI-...J 0:: UJCI)O >0-Oz EQUIPMENT TRACKHOE JD 555 2411 zlJJ...J cp ~~e 0::'"' :1::0
0 u
MATERIAL DESCRIPTION
f-a ~ f--, COLLUVIUM I-
CL Stiff to soft,.moist, dark gray-brown, Sandy CLAY
f-2 --Massive, porous, with rootlets, root-voids and l-
I--~ burrows r:-
r-4 -l-.. -IrreJnllar contact inclined SW . -I--. . .
:~~ ":t:
f-6 -::t:~::f SANTIAGO FORMATION f-" .. ~., . SM Very dense, damp, light tan to orange, Silty, fine =r-r f--:;r:~::t: SANDSTONE, massive to near-horizontal beds ,l-
I-8 . . ..
, ,
TRENCH TERMINATED AT 8 FEET
-
Figure A-154, Log of Trench T 99 LCG
SAMPLE SYMBOLS [] '" SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ; .. STANDARD PENETRATION TEST. '" DRIVE SAMPLE' '(UNDISTURBED),
iJ ... CHUNK SAMPLE ~ ••• \lATER TABLE OR SEEPAGE =
NOTE: 'THE LOG OF SUBSURFACE CONDITIONS SHO\lN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE' CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECTNO 06403-12-01 ..
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I.
0:: TRENCH TIOO >-UJ zUJ ...... >-t!) I-,....
0 <I: °u ° 1-..... UJ~ DEPTH SAMPLE ..J :3: SOIL Hzl-H ° . 0:: '"
IN 0 0 CLASS I-<I:LL ~LL :::ll-
NO. ::r: z ELEV. (MSL.) 175 DATE COMPLETED 11/15199 <1:1-' UJO I-z FEET I-:::l (USCS) o::U)tI') Ou tl')1J.I H 0 I-:3: UJH o ° HI-..J 0:: EQUIPMENT TRACKHOE .Ti> 555 24" zU)..J >-0.. Oz t!) UJUJ co 0::'"' :E:o o..c:t::'"' 0 t.)
MATERIAL DESCRIPTION -0 0. --COllUVIUM -Soft to stiff, .moist, dark brown, Sandy CLAY .' -2 --Porous, with rootlets, root-voids -
--~ -
I-4 -CL l-
I--~ ,l-
I-6 -l-
I--I-.'/ ,
I-8 -rJ/.) SC TERRACE DEPOSIT .1--I-{// Medium dense, moist, reddish-brown, Clayey, fine
I-10 -'l'/'/ ____ t~ ~~~~_ S~.?.?. ~~tt:s2'~: s~S ~~t ______________ I-
'--~ CL Very stiff to hard, very moist, olive-brown, very -
r-12 . /' Sandy CLAY
TRENCH TERMINATED AT 12 FEET
-
Figure A~155, Log of Trench TIOO LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST' .... DRIVE SAMPLE (UNDISTURBED)
IiJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =-
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED •. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I
PROJECT NO.
DEPTH
In
FEET
-0
--
- 2 -
SAMPLE
NO.
I' ~ 4 =
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I
I
I
I
I
I
I
--
- 6 -
-
06403-12-01
0:: >-, III 'C.!l I-0 <I: ...J :I SOIL 0 0 CLASS :::t: z I-::J j 0 (USCS)
0:: tl)
V/ CL
~L-MH
TRENCH TI0l
ELEV. (MSL.) 197 DATE COMPLETED
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRlPTION
TOPSOll..
Stiff" humid, dark gray-brown, Sandy CLAY
SANTIAGO FORMATION
Hard, damp, light olive, very Clayey SILTSTONE
-Very weathered and fractured, with some
sandstone lenses
-Becomes very hard, dry, light olive, cemented,
Silty SANDSTONE '
-Concretion layer
TRENCH TERMINATED AT 7 FEET
REFUSAL
I
I
I ,Figure A-156, Log of Trench TI0l
ZUJ'" >-",. °u . 1-..... lIJ~ HZI-H. 0::'"" 1-<I:Ll. (/)u. ::JI-11115/99 <I: 1-' z. I-z O::oo(/) lllU I-H:I c . (/)lJ.l HI-lllOOO '0-Oz zUJ...J >-...., /i:e:::e 0:: 4:0
0 U
-
-
I-
LCG
,I SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ .,. DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
I
~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE'
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I. PROJECT NO 06403-12-01
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0:: TRENCH TI02 >-UJ Zw''':''' :.:; " t!) l-.. °u . 1-,... IJJ;>: 0 <I: DEPTH ...J ::3: SOIL Hzl-H. 0:: ..... SAMPLE 0 0 CLASS I-c:u.. C/)u.. ::::II-IN NO. :r: z ELEV. (MSL.) 210 DATE COMPLETED 11/15199 <1:1-' z. I-z FEET I-:::> (USCS) O::cnC/) lJJu C/)UJ H 0 I-H::3: O .• HI-...J 0::: UJC/)O' >-0.. Oz EQUIPMENT TRACKHOE JD S5S 24" zLU...J t!) lJJe:::cc 0::'"' 1:0 0.. ..... 0 u.
MATERIAL DESCRIPTION
f-0 ~ I---COLLUVIUM -Soft to stiff, .moist, dark brown, Sandy CLAY
r 2 --Porous, with rootlets, root-voids -
r -~ CL l-
I--4 -I--
-I---rg -Becomes very stiff, less porous' l-
I--6 -:.:/ l-
I---::f :~: =t. SM SANTIAGO FORMATION ..
8 .. . .. I--Very dense, dry, light orange-brown, cemented,
Silty, coarse SANDSTONE, concretion layer
TRENCH TERMINATED AT 8 FEET
REFUSAL
.. -
Fi~e A-157, Log of Trench TI02 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ •• , DISTURBED OR' BAG SAMPLE
IJ ... STANDARD PENETRATION TEST ... " DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE ~ ... WATER TABI.E OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE 'SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT""OTHER I.OCATIONS AND TIMES.
I
I PROJECTNO
0::
. '.
TRENCH TI03
06403-12-01
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>-w z LU"" >-. ..... t!) I-0(.) 0 ~~ w~ 0 0::: DEPTH ...J :::t SOIL Hzl-0::'" SAMPLE 0 Cl CLASS I-<tu. zu. ::;)1-IN . NO. :I: z ELEV. (MSL.) 250 DATE COMPLETED 11/16/99 ~I-d; w" I-z
FEET I-:::> (USCS) I-CI):::t ·o~ Cf.IUI H 0 l1JHO HI-...J 0:: EQUIPMENT TRACKHOE JD 555 2411 z CI)...J >-0.. Oz t!) l1JLU CC 0::'"' :E:o 0.. 0::,", 0 u
MATERIAL DESCRIPTION
f-0 .~} SC TOPSOIL f---
. f·i.'~' Soft,' damp, dark brown, very Clayey, fine SAND
c-2 -~.; :f . SANTIAGO FORMATION -
TlO3-1 -t'r SM
r--:: :~::-Dense, damp, light reddish-brown to brown, Silty, -
I-4 -::f:f:t fine SANDSTONE, massive, blocky
f-::f:~::(
I---:f: :-t l-
I-6 -:: : J:: I-:-tor:f-
I--':f: :t I-;:.:~:: .
8 . . . , - -~~ ~ --------------------------------------
... -!r103-2 ~L-ML Hard, damp to moist, olive-brown, Silty f-CLAYSTONE, with abundant gypsum (calcium ,.. 10 -sulfate) in alternating layers I-
--~ -Horizontal, laminated beds r-
-12 -r-
-
-TRENCH TERMINATED AT 13 FEET
Figure A-ISS, Log of Trench r:rI03 LCG
.SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ... WATER TABLE .oR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I.
I PROJECTNO 06403-12-01
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0:: ..
>-LI.I TRENCH TI04 Zw'" .>-" (.!) l-Ou • 1-...... LI.I~ ° <I: DEPTH ...J ::t SOIL HZI-H. 0::'-' SAMPLE ° Cl CLASS I-<J:u. cnu.· ~I-IN ::I: Z ELEV. (MSL.) 320 DATE COMPLETED 11/16/99 <1:1-' Z • I-Z NO. I-:::l O::CI)C1) LI.IU (1)UJ FEET H 0 (USCS) . I-H::t Cl • HI-...J c:! LI.Icn·O >-a.. ClZ EQUIPMENT TRACKHOE JD 555 2411 zlJ.I..J (.!) LI.Io:::!O 0::'" :E:o .a.. '-' Cl u
MATERIAL DESCRIPTION
I-0 :9. }"I-SM
I--'\ COLLUVIUM -~ \ __ ~E~t.~. lig~ ErE'!!"!.. _G.!'~!?lly t. ~i1'!y_ S}.~'p _______ , I
I-2 -CL Stiff, moist, olive, Sandy CLAY l-
'.
I--l-
I-4 -.:/
::f:~;:t;
I--SANTIAGO FORMATION l-T· ~ ;. 'r: ; SM Very dense, damp. light broWn-orange, Silty, fine
I-6 -::~:~::t. SANDSTONE, with some clay l-
I-:·t· ·:r: -Horizontal laminated bedding
TRENCH TERMINATED AT 7 FEET I
.,
..
.
-
Figure A-159, Log of Trench TI04 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED)
~ ••• DIST.URB.ED OR BAG. SAMPLE ~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES. ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION' AND AT THE
DATE INDICATED; IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDiTIONS AT OTHER LOCATIONS AND. TIMES.
I
I PROJECT NO. 06403-12-01
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I.
I-
I-
I-
r-
I-
l-
DEPTH
IN
FEET
0
2
4
6
SAMPLE
NO.
-
-
-
-
-
-
0:: >-w t!) ~ 0 ..J 3 SOIL 0 0 CLASS Z z I-:::J (USCS) H 0 ..J 0:: t!)
:,1,1:1,
l1'1
:'1 rl' SM
:1'.1-"1-
"f'~'r ' .. ~., :·t· .;~' ... .. ~ .. SM ':f: :'f' . .. ,. ''1' :'t' ':f: ,. :1: ' .... , .. ' .
TRENCH TI05
ELEV. (MSL.) 302 DATE COMPLETED
EQUIPMENT TRACKHOE JD 555 24"
MATERIAL DESCRIPTION
COLLUVIUM
Loose, humid, light reddish-brown, Silty, fine
SAND, with some clay and pebble-gravel
-Porous, with root-voids, burrows
SANTIAGO FORMATION
Very dense, damp, light tan, Silty, fine
SANDSTONE
-Horizontally bedded
, TRENCH TERMINATED AT 7 FEET
Figure A-160, Log of Trench TI05
ZUJ""' >-" 1-,,", UJ"': °u . Hzl-H • 0::"" I-<I:LL. (/)LL. ~I-11/16/99 . <I:I-' z. o::(/)cn UJu cn Z ~ti9 .. 0 • HIJJ
>-0.. 01-
WUJIXl 0::'" l:z 0 0..0::", 0 U
-
.-
-"
-
--
I-
.,
-
,. LCG
I
I
I
I
I
I
SAMPLE SYMBOLS [J '" SAMPLING UNSUCCESSFUL
.~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UND·ISTURBED)
iiJ ••. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE.
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOYN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT .IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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,I PROJECT-NO . 06403-12-01
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~ TRENCH TI06 >-III ZLIJ'" >-'" to l-Ou 0 1-", UJ~ ° <I: DEPTH ..J :::r: SOIL Hzl-H 0 ~...,
IN SAMPLE ° 0 CLASS I-<I:LI.. (J)LI.. ::)1-
NO. Z Z ELEV. (MSL.) 310 DATE COMPLETED 11/16/99 <1:1-' , Z 0 I-z I-::J ~CI)(J) L1lu ~!=1, FEET H ° (USCS) I-H:3: o 0
..J ~ EQUIPMENT
IllCl)O a.. to TRACKHOE JD 555 24" zLIJ..J ~'"' ;E:z UJo:::al ° a.. '"' o· u
MATERIAL DESCRIPTION
I-0 ~1·l·"I-SM ' '
I--.. COLLUVIUM ~ ~ CL ' ___ l::0E~et.. c!.rY.., )ighlprE'!Yll' _G.!'~~l~ t.. ~!y_ S.f\~P __ , _____ , I
I-2 -Stiff, moist, olive, Sandy CLAY l-
I--, ::f:rt:
I-4 -~106-1 SANTIAGO FORMATION I-~ ::t:{f: SM Very dense, damp, light tan, Silty, fme . .:~: :Ot I--.,., .~ ... SANDSTONE ' I-°t .,~ -Upper 12" moderately cemented I-6 -.. ., " ... ., l-. r' ·:C: ::~~ . . ..
TRENCH TERMINATED AT 7 FEET
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Figure A-161, Log of Trench TI06 LeG
SAMPLE SYMBOLS 0' ... SAMPLING UNSUC~ESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ •• , DISTURBED OR BAG SAMPLE ij ... CHUNK SAMPLE :J: •.. WATER TABLE OR SEEPAGE = '
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE'OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
0:: ...
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>-LIJ TRENCH TI07 ZlJ./"" >-"" (!) l-Ou • 1-"" UJ~ 0 <I: DEPTH ...I :3: SOIL Hzl-H. 0::"" SAMPLE 0 0 CLASS 1-<tLJ.. ct)LJ.. :;)1-IN NO. Z Z ELEV. (MSL.) 301 DATE COMPLETED 11/16/99 <1:1-' Z. I-z I-:;) (USCS) O::ct)ct) .UJu Cl)UI FEET H 0 I-H:3: c. HI-...I 0:: LlJct)O >-c.. Oz EQUIPMENT TRACKHOE JD 555 24" zlJ./...I (!) LlJo:::lXl 0:::'-" :1::0
c.. "" o· u
MATERIAL DESCRIPTION -0 ~/./ '"' -COLLUVIUM -/;/"/ Loose, humid, medium dark brown, Clayey, fine
'"' 2 -{1~ SC SAND, with some silt, scattered gravel -
y/!. . . ---
-4 -;/~-j
::f:rt: --'t "f SANTIAGO FORMATION . -:,.( : Very dense, damp, light tan to gray, Silty, fine· .... SM '-6 _. ::f:~::t SANDSTONE :..
· -t· ·-f ,... -· . , -, . , · ~ ..
:-8 ·:C: ::t:
TRENCH TERMINATED AT 8 FEET
.
-
Figure A-162, Log of Trench TI07 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ::. WATER TABLE.OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
I
I PROJECT NO. 06403-12-01
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0:: TRENCH TI08 >-Lll ZLlJ'" >-'" (!) I-a <J: au· 1-...... Lll~ DEPTH ..J ::t SOIL HZI-H. 0::"
IN SAMPLE a ° CLASS ~<I:~ CIlu. ::lI-
ND. Z Z ELEV. (MSL.) 320 DATE COMPLETED 11/16199 0::1-C/) Z. I-z FEET I-:::l (USCS) 1-(1)::3: LllU cnlJ.l H a LllHa o. HI-..J 0:: EQUIPMENT TRACKHOE JD 555 24" Z (I)..J >-0.. Oz (!) LllLlJIC 0:: ..... :£:0 0.. 0::" 0 u
MATERIAL DESCRIPTION -0 1;:'/5 --// SC TOPSOll.. -
~~i Loose, dry, dark brown, Clayey, Gravelly SAND,
'-2 -TI08-l iM-GM with some silt -
-TI08-2
LINDA VISTA FORMATION l-
Very dense, damp, reddish-brown, very Gravelly,
4 -medium SANDSTONE I-
-: : ...... 4,.:.:. --Irregular, nearly horizontal contact ::f:~::t: SANTIAGO FORMATION I-6 -'t ,.( I-, , , Dense, damp, light tan, Silty, fine SANDSTONE .: :~:·c. SM I--• f T I-': :f~' 't 'r ,
I-8 -· , . l-... " ::(:~::~:
l-· ...
TRENCH TERMINATED AT 9 FEET
-
,
Figure A-163, Log, of Trench T108 l.eG
SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST .... ' DRIVE, SAMPLE (UNDISTURBED)
iJ . .. CHUNK SAMPLE :Y:: ••• WATER TABLE OR SEEPAGE = .
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONl.Y AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDr'CATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.'
I
I PROJECT NO. 06403-12-01
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~ TRENCH TI09 >-W ZUJ'"' >-'"' t!) I--°u ' "I--" UJ~ 0 <I: H'" DEPTH ..l 3 SOIL HZI--~'"" SAMPLE I--<t:u. en' 0 c CLASS zu. :::ll--IN NO. :r: Z ELEV. (MSL.) " 285 DATE COMPLETED 11/16/99 <I: 1--' w' "Effi FEET I--:::l (USCS) ~CI)en C~ H 0 I--H 3
..l ~ WCI)o >-a.. 01--
t!) EQUIPMENT TRACKHOE JD 555 24" zUJ..l ~'"" :E:z wo::trl 0 0.. ..." C u
MATERIAL DESCRIPTION
~ 0 :~."Il --tl COLLUVIUM f-
Loose, dry to humid, medium light brown,
2 -. ~.¥ Gravelly, Silty, fme SAND, with clay, porous, with r-: i· SM numerous root-voids, burrows -J.~:I" '-
-4 -"t. "f -. ~f --~ '. -
-6 -::~f']" "-'~~ --::f:j' " -r' , . '-Irregular contact inclined northwest -8 -.' "'II'. ::f:rt: SM SANTIAGO FORMATION -~ :C: -:~; , " ... ' , Dense, damp, light tan to gray, Silty, fine
SANDSTONE
TRENCH TERMINATED AT"9.S FEET
Figure A-164, Log of Trench TI09
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• "DRIVE "SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITInNS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT "THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES."
I
I, PROJECT NO. 06403-12-01 , , ..
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0:: TRENCH TII0 >-IJJ ZUl" >-t!) I-.....
0 <I: °u . 1-" IJJ~ DEPTH ...J :3: SOIL HZI-H. 0::'"'
IN SAMPLE 0 CJ CLASS I-<tu.. CSlu.. ::JI-NO. ::c Z ELEV. (MSL.) 320 DATE COMPLETED 11/16199 <I: 1-' Z ... I-z I-::l O::CSlCSl lJJu FEET H 0 (USCS) I-H:3: CJ • ~IJJ ...J 0:: EQUIPMENT
IJJCI)o >-0.. 01-t!) TRACKHOE JD 555 24" Z'Ul...J 0::'"' :E:z 1f0::E9 0 CJ u
MATERIAL DESCRIPTION ..
-0 :9.-1--1---'lA'l
)M-GM TOPSOIL -Loose, _dry, reddish-brown, Gravelly, Silty SAND -2 -.:"0~( LINDA VISTA FORMATION -D>0. -:0: .~ M-GM Very dense, damp, reddish-brown, conglomeratic -
~':.G: SANDSTONE, massive, with some clay and r-4 -~9..(j} cemented lenses -
I---Irregular deposition contact nearly horizontal :;f:~::t: SANTIAGO FORMATION r-6 -'T'r f-. . , ::~:~::f SM Dense, damp, light tru;t, Silty, fme SANDSTONE
r--. r' -Massive to horizontally bedded t-. , .
f-8 :~~ .. :r;
TRENCH TERMINATED AT 8 FEET
, '
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Figure A-165, Log of Trench TII0 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ... DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE y: ..• 'WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN 'HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCAT.ION AND AT THE
DATE INDICATED. IT IS NOT 'WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO 06403-12-01
0::
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TRENCH TIll >-w ZUl""' :>-,... (.!) l-Ou . I:i ..... L1JO 0 <t: DEPTH .J ::3: SOIL HZI-SAMPLE ~<I:~ . ct) • .. 0::
IN 0 0 CLASS zu. :JI-NO. :J: z ELEV. (MSL.) . 315 DATE COMPLETED 11116/99 0::.1-CJ) • lJJ' t-z FEET t-:J (USCS) 1-.ct)::3: o~ cnlJ.l H 0 UlHO HI-.J 0:: EQUIPMENT TRACKHOE JD 555 24" Z ffi.J >-a.. Oz (.!) ~o::S . 0::'"' ::E:o
0 u
MATERIAL DESCRIPTION -0 :9.~l SM TOPSOlL - -~-."~~ SC Loose, dry, light brown, Silty, Gravelly SAND ~» .. : I-2 -:?~ SANTIAGO FORMATiON -
- -
:f.! • ... Medium dense, damp, reddish-brown, Clayey, fme ::f:J==t: r \ SANDSTONE I
4 -'t 'r \ -Very weathered { I-:' '(' ~----------------------------------, I--':~: :-8 Very dense, damp, light tan, Silty, fme I-: ... ~.: SM SANDSTONE r' f I-6 -:. '( I-.. ( ··t· _3" olive CLA YSTONE layer, horizontal
I--" 'f' I-:{ ::~: 8 . , , ,
I-
TRENCH TERMINATED AT 8 FEET
-
FIgure A-166, Log of Trench TIll LCG
.
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL
18§ • •• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION' TEST .... DRIVE SAI'lPLE (UNDISTURBED)
Ii;;) ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE
DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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I PROJECT NO. 06403-12-01
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TRENCH Tl12 >-LLI ~UJ~ >-t.!l I-,...
0 <l: H u .... 1--", LIJ~ DEPTH ...J ::I SOIL I--ZLI.. H • o::~
IN SAMPLE 0 0 CLASS <l:~:'\., en 1.1. ::ll-
NO. :I: z ELEV. (MSL.) 319 DATE COMPLETED 11/16/99 Z • I-z FEET I--::l (USCS) I=cn~ LLlu tnLIJ H 0 UJHo t:l. HI-...J 0:: EQUIPMENT TRACKHOE JD 555 24" zen...J >-c.. Oz t.!l LLlUJal 0::'"" 4:0 c..o:: ..... t:l u
MATERIAL DESCRIPTION
I-0 ........ ,. ,a," ... ,"
r--.:.;5..:. LINDA VISTA FORMATION I-,. ,. .. ,. ........ GP Dense, ,damp, reddish-brown, very Gravelly .. ~ ... ," .,~~ I-2 -...... ', SANDSTONE, with some day, scattered, oversize l-t ...... ·rt.·.· ... (> 12" diameter) boulders I--.. .. .. .. .. I-.. "#.. .. -Irregular, near-horizontal contact ... ', .. '.
r 4 -:1. '/ :1-
SANTIAGO FORMATION -t 1.,
'--Dense, damp, light tan-brown, Silty, fine SAND :-
:.j t-l-SM
I-6 --A :1-
I--:d-' -
I
'-8
TRENCH TERMINATED AT 8 FEET
r
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I
Figure A-167, Log of Trench Tl12 LCG
SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION, TEST •••• DRIVE SAMPLE (UNDISTURBED)
~ ••• DISTURBED OR BAG SAMPLE IiJ ... CHUNK SAMPLE !-... WATER TABLE OR SEEPAGE
NOTE: THE LOG' OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY,AT THE SPECIFIC BORING OR TRENCH LOCATION ANO AT THE
, , DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDHIONS AT OTHE~ LOCATIONS AND TIMES.
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I PROJECTNO 06403-12-01
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~ TRENCH Tl13 >-Ltl zUJ ..... >-'" t!) l-Ou • 1-,... Ltl~ ° <I: DEPTH ..J ::::t SOIL Hzl-H. c:::'"'
IN SAMPLE ° ° CLASS. I-<I:u. cnu. ::ll-
NO. :::r: z ELEV. (MSL.) 285 DATE COMPLETED 11116/99 <I: I-"' Z. I-z I-::l (USCS) C:::cncn Ltlu cnUJ FEET H ° .. I-H::::t C. HI-..J c::: UJcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ..J t!) \:::c:::9 ~~ l1:o C U
MATERIAL DESCRIPTION
0 I-:9.1:1-
I--l~-! SM TOPSOIL t-
. '-J '" Loose, dry,. light brown, Silty. Gravelly SAND
t-2 -~X~. -Porous /
SANTIAGO FORMATION t--~~ I-
4 *~ Medium dense, damp, reddish-brown, very Clayey,
I-:-SC fine SANDSTONE, massive l-
I--t{~ -t-*~~ I-6 -'X -Becomes very dense I-~1:: l-. ~".
TRENCH TERMINATED AT 7 FEET I
-
Figure A-168, Log of Trencll Tl13 LCG
SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)
iJ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE 'CONDITIONS AT OTHER LO~ATIONS AND TIMES •.
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06403-12-01
c-al ~ -
o ~
5
10
15
20 ~,
:c 25 l:i: w o
30
35
40 ~
:"'
45 i-
:"'
i-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-1
Rippable RippabJe Non-Rippable
11/30/99
ELEVATION
360 FEET MSL
o
GEDeON tXCOKPOBA'I'llll
50 ~--~----~----+-----~---+--------~------+-----~-----r----~--~
I o 1.0 . 20
,
30 100 110 80 90 40 50 60 70
DRILL RATE (seconds per foot).
OG403-12-01 LA COSTA GREENS FIG. A-169
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06403-12-01
o~
5
10
15
20
:0-w ~ -:c 25 l-e.. w Cl
30
35
f-
40 f-
f-
I-
45 l-
f-
f-
50 f-
0
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-2
Rippable Rippable Non-Rippable
10
I
20 I 30 40 50 60 70
DRILL RATE (seconds per foot)
80
06403-12-01 LA cos~ GREENS
90
11130/99
ELEVATION
335 FEET MSL
GEDeON
lXIlOB.!'OllA'rJ:D
100 110
FIG. A-170
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06403-12-01
Z" Q)
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o~
5
10
15
20
:c 25 Ii: w o
30 I-
I-
35 l-I-
i-
40 l-I-
l-
I-
45 I-
I-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-3
Rippable Rippable Non-Rippable
lr
11/29/99
ELEVATION
.225 FEET MSL
o ..
GEDeON
IKQOaJlO&A'l'.D
50 ~1-----------4-----------~------4----------~-------+------~~------+~-----~-------+------~-------~
o 10
I 20 I 30 100 110 90 80 60 . '70 40 50
DRILL RATE (seconds per foot)
06403-12-01 LA COSTA GREENS FIG. A-171
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06403-12-01
1? .IE -
5
10
15
20
J:' 25·
6: UJ Cl
30
35 --!-
40 f.
~
f. -
45 r--r-
l-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-4
Rippable Rippable Non-Ripp"able
11/29/99
ELEVATION
225 ETMSL
o
GEDeON
lNGOJlPOll..A.'l'aD
SO -~-----~-----~----------4-------+----------+---~----~--~--~----~--~ , a 10 20 40 50 60 70 80 90 100 110
DRILL RATE (seconds per foot)
06403-12-01 LA COSTA GREENS FIG. A-172
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06403-12-01
~ Q) .. ~ -
o E'I
==
5
15
20
:c 25 l-e. W
Cl
30
35 i-
40 l-I-
45
f-
l-
I-
l-
I-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-5
Rippable Rippable Non-Rippable
11/29/99
ELEVATION
250FEETMSL o
·GEDeON IHOO2\POJl.,A'f .. D
50 I-~---+-------~-------+-----------~------+-------~----------+------~~------r--~~-----~
10
I
20 I 30 40 50 60 70 80 o 90 . 100 110
DRILL RATE (seconds per foot)
06403~l2-0l LA cos~ GREENS
FIG. A-173
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06403-12-01
Z" co g
o -EEl!
5
10
15
20 "
:::c ·25
6: w o
30 _
-..
· 35 •
-· · 40 _
I-
:-
45 ~
:-
:-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-6
Rippable Rippable Non-Rippahle
11/29/99
ELEVATION
350FEETMSL
o
GEDeON IKCOJ\PQ1\A'1'Kn
50.~:-________ +-________ ~ ____ -4 ________ ~ ________ +-____ -4 ________ ~ ______ ~--------r-----~--------~
. 0 10
I 30 100 110 I 20 90 80 70 60 50 40
DRILL RATE (seconds per foot)
OG4C3.~2-0~ LA cos~ GREENS ;FIG. A-174 .
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06403-12-01
. 0
5
10
15
20
z-.0)
.fE -:c 25 l-. 0....
W
. VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-7
Rippable Rippable Non-Rippable
Cl _ .... ,. I M, __ """''''' .. , .....
30
35
40
45 l-
f-
-
I ._ .. l'"
11/29/99
ELEVATION
255 FEET MSL
o
GEDeON IIIOOKPQI\A'rliD
50 ~---+----4-----~---+----+---~----~----+----4----~--~
o I
20 40 50 70 60 80 90 100 10 I 30 110
DRILL RATE (seconds per foot)
FIG. A-175
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06403-12-01
e-n> ~
5
10
15
20
::c 25 b: UJ o
30·
35
:--
45 •
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK .
BORING AT·8
Rippable Rippable Non-Rippable
I ~
11/29/99
ELEVATION
240FEETMSL
o
GEDeON IHGOJ\POJ\.L'l'."1:I .
50 ~--~-----+----~;~---4----~----4-----+-----r---~-----+----~
a 10 40 50 70 60 80 I 30 110
,
20 90 100
DRILL RATE (seconds per foot)
06403-12-01 LA COSTA GREENS FIG. A-176
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06403-12-01
o !Ell
5
10
15
20
i:!: 25
c.. ill Cl -
30 r
35 -
-
40 --
--
45 _
---
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-9
Rippable Rippable Non-Rippable
11/29/99
ELEVATION
230FEETMSL
-0
GEDeON
IlfOOl\JlORA'l'.D
50 ~---+----~----+---~----~----~----~---+-----r----~--~ I
20 I 30 110' 100 80 a 10 60 70 40 50
. ·DRILL RATE (seconds per foot)
06403-~2-0~ LA COSTA GREENS FIG. A .... 177
..... ---------------------------------------
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06403-12-01
5 _ .
10
15
20
::c 25 b: w o
30
35 '
40 _
-
45 :"
-
!'"
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non--
AIR TRACK
BORING AT-10
Rippable Rippable Non-Rippable
~ ~
11/29/99
ELEVATION
220FEETMSL
GEDeON
fHGOJ\POJl...("an
50 !'" ~ ~--~---~--+_~~~-~----~----+_--~----_r----~--~
I 1 o 10 20 30 40 " 50 60 70 80 90· ·100 110
DRILL RATE (seconds per foot)
FIG. A-178
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06403-12-01
o ~
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-11
RippabJe Rippable Non-Rippable
t
5§" H
10 ~
15
20 ,-
e-m .~ ......
:::c l-25
e. W d.
30
35
40
11130/99
ELEVATION
245FEETMSL
o
GEDeON IHOOJlPOJ\.A2IaD
50 ~--~----~--~----~--~----~--~----~--~----r---~
100 o 10
I 20 I 30 40 50 60 70 80 90 110
DRILL RATE (seconds per foot)
06403-12-01 LA COSTA GREENS FIG. A-179
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06403-12-01
o ~-,t=
5
10
15
20 .
::c '25 b: w o
30
35 I-
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40' l-
I-
I-
45 l-I-
l-
I-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-12
Rippable Rippable Non-Rippable
11/29/99
ELEVATION
265 FEET MSL
o
GEDeON IHQDKPCJLA.'l'JlD
50 I-~-----~------4----------4-------+----------+------~-----~~-----~------+----------+---~
I o 10 30 40 50 60 70 80 90 100 110
DRILL RATE (seconds per foot)
06403-12-01 LA COSTA GREENS FIG. A-180
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:0:;-m ~
5
10
15 '
20
:c 25 I-fu
Cl
30 _
-
35 -
I--
40 • · · · ·
45 a
a
I-
a
VILLAGES OF LA· COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-13
Rippable Rippable Non-Rippable
11/30/99
ELEVATION
380 FEET MSL
o
GEDeON IJtOOl\!-OJ\A'I'Ka
50 a ~--~---4----4----+~--+---~--~~~~--~----+---~
o 10 100 110 I 30
I
20 90 80 60 70 50 40
DRILL RATE (seconds per foot)
06403-12-01 LA COSTA GREENS FIG. A-181
r--------------------------,---------~-----
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a
5
10
15
::J: 25' '1-e... w o
30
35
40 _
45 :-
:-
~
VILLAGES OF LA COSTA;.. THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-14
Rippable Rippable Non-RippabJe
11/30/99
ELEVATION
385FEETMSL
o
GEDeON lKQOll!'QI\.A'l'Xn
50 I. ~--_+----~----4_--~~--_+----~----+_--~~--_r----~--~
10 I
30 40 50 60 70 80 90 100 o I
20 1.10
DRILL RATE (seconds per foot)
06403-l2-0l LA COS~ GREENS FIG. A-1S2
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06403-12-01
a .5!iiI
5
10 •
15
20
J: 25 b: w
Cl
30
fo
fo
:-
35· _
:-
fo
fo
40 fo
fo
fo
45 fo
fo
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT-15
Rippable Rippabie Non-Rippable
11130/99
ELEVATION
355FEETMSL
o
GEDeON
IHGOKPQJ\A'l"a,a
fo
50 fo ~----~------~----+----~~----~--------4-------+-----~-------r--------~----~ ,
30 40 50 60 70 80 90 10b 110 o 10
I
20
DRILL RATE (seconds perfect)
C64CJ-l2-0l LA cos~ GREENS FIG. A-183
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o~
5
10.
15
20
J: 25 5: w· '0
30
35
40 ~
-
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT -16
Rippable Rippable Non-Rippable
11/30/99
ELEVATION
375FEETMSL
o
GEDeON IKoaKJlaaA'l'.D
50 ~---4----~----4-----~---+----~----+---~r----+-----r--~
o 10·
I 30 40 50 60 70 80 90 . I 20 100 110
DRILL RATE (seconds per foot)
FIG. A-184
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Z" Q) ~
5
10
15.
20
:c 25 l-e.. UJ Q.
l-
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30 l-
I-
35 ---
40 -
--
45 -i-
'" -
VILLAGES OF LA COSTA -THE GREENS
Marginal to
Non-
AIR TRACK
BORING AT -17
Rippable Rippable Non-Ripilable
11/30/99
ELEVATION
380FEETMSL
o
. GEDeON
tHQO&PQIlA'l'lUJ
50 ~---+----4---~~--~----+----4----~----r----+~--~--~ • J o 10 20 30 40 50 60 70 80 90 100 110
DRILL RATE (seconds per foot)
0640J-12-0i LA COSTA GREENS FIG. A-185
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APPENDIX B
LABORATORY TESTING
Laboratory tests, were performed in accordance with the generally accepted test metho~s of ,the
Americ~ Society for Testing and Materials (ASTM) or, other suggested procedures. Selected
relatively undisturbed drive samples and chunk samples were tested for their in-place ,dry density and
moisture content, shear strength, expansion and consolidation characteristics.
The results of our laboratory tests are presented in tabular. and graphical forms hereinafter. The in-
place density' and moisture characteristics are also presented on the logs on' of test trenches and
borings.
Sample
No.
LB 1-2
LB 1-11
LB 3-3
LB 9-4
LB 10-2
T23-2
T24-2
T 85-1
T 108-1
TABLE B-1
SUMMARY OF LABORATORY MAXIMUM DRY DENSITY
AND ,OPTIMUM MOISTURE CONTENT TEST RESULTS
ASTM. D 1557
Description Maximum Dry Optimum Moisture
De~sity (pet) Content (% dry wt.)
Yellowish brown, Silty, fme to coarse SAND 120.4 12.0, ,
Grayish green, Sandy CLAY 113.5 1.6.5
Greenish gray, Silty CLAY 112.2 ' .' 17.0
Greenish gray, Silty CLAY 115.8 15.4
Light gray, Silty, fme SAND ' 114.0 14.2 ' , ,
Dark grayish brown, Sandy CLAY 122.0 ' '11.4
Reddish brown, Clayey, fine SAND 123.0 11,0 '
Dark olive-brown, Sandy CLAY -121.1 12.4
Reddish brown, Silty, fme to medium SAND '123.9 10.0 ' ,
, , ProjectNci.06403-12-03 -B-l-1une 25, 2001
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TABLE B-II
SUMMARY OF DIRECT SHEAR TEST RESULTS
Sample No. Dry Density Moisture Content Unit Cohesion Angle of 'Shear '
(pet) (%), (pst) Resistance (degrees)
LB 3-3* 100.5 17.7 610 27 .' LB 5-4 117.2 16.7 610 29
LB 10-2* 103.1 13.9 460' 3-5 '
124.8 10.8 ' , 1020 43 LB 1-3
LB 1-4 112.2 20.2 830 ' .15
LB 1-9 117.7 16.2 200 38
*Samples reIIl()lded to 90 percent relative density at or near optimum moisture content.
'\
TABLE B-III
SUMMARY OF LABORATORY EXPANSION INDEX TEST RESULTS
Sample Moisture Content Dry Expansi~n
No. Before Test (%) , After Test (%) Density (pct) Index
LB 1-2 9 20.9 114.3 6
LB 18-9 11.3 30.3 105.1 57 .
LB 1-11 14.2 34.6 96.8 62
T23-2 10.1 29.3 109.5 55 .
T 85-1 . 10.0 28.9 110.1 57
T 103-2 12.1 32.4 103.0 70
Project No. 06403-12-03 -B-2-June 25, 2001
I
I. PROJECt NO. 06403-12-01
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>-co
0:: LLl z H u..
I-z
LU U 0:: LU p-
LeG
"
3" 100
90
80
70
60
50
40
30
20
10
0
•
1%1 ...
-GRAVEL
COARSE FINE
I-lI~" 3/4" __ 3/8"
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·10
SAMPLE Depth (ft)
SB3-2 10.0
SB4-2 10.0
SB6-2 10.0
SAND
COARSEj MEDIUM FINE Sn.TORCLAY
U. S. STANDARD SIEVE SIZE
'4 ·110 _ Ii 30 SO 20 40 60 100 290
I ........ ~ .... i I I
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1 '~ "\
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-~ \ ' .. I I I
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\ ~~ I I I
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I I I
I I I
I I I
I I I
I I I
I I I -,
1 0~1 0.01 0.001 -
..
GRAIN SIZE IN l\1ILLIMETERS
CLASSIFICATION NATWC LL PL PI
(CL) Yellowish-brown, Sandy. CLAY
(SM) Dark yellowish-brown, Silty SAND
(SM) Dark yellowish-orange, Silty SAND
GRADATION CURVE
vn.LAGES OF LA COSTA -THE GREENS I
CARLSBAD, CALIFORNIA
Figure B-1
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PROJECT NO. 06403-12-01
GRAVEL
COARSE I FINE
3" 1·112" 3/4" 3/8" 100 II I
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90 I
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LU I 3 I
>-60 I
t;l I
0:: 1
LU 50 z I H I U. I
I-40 z I LU U I
0:: I LU 30 0-I
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20 I
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10 I
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10
SAMPLE Depth (ft) • SB7-3 15.0
I:l SB8-2 10.0
.... SB8-4 20.0
LeG
SAND
~OARSEI MEDIUM FINE SILT OR CLAY
U. S. STANDARD SIEVE SIZE
8 1
1
6 30 50 1 110 20 40 60 100 200
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1 I I
1 1
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1 0.1 0.01 0.001 -
. GRAIN SIZE IN MTI..L~TERS -'
CLASSIFICATION N"ATWC . LL PL PI
(SM) Light olive-brown, Silty SAND
eCL) Yellowish-brown, Sandy CLAY
eCL) Dark yellowish-orange, Sandy CLAY '.
. .
GRADATION CURVE
VILLAGES OF LA COSTA -THE GREENS
--
CARLSBAD, CALIFORNIA
Figure B-2
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PROJECT NO. 06403-12-01
GRAVEL
COARSE FINE
3" 1-112" 3/4" 31 " 100 II I
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90 I -I
1
80
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Ul I :::3: 60 I
>-I
I:C I
0:: I
Ul 50 z I H I L1. I
I-40 z I Ul U I
0:: I -
Ul 30 a.. I
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20 I
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10 ' I
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0 I
10
SAMPLE Depth (ft)
• SB10-3 15.0
LeG
", ..
SAND
~OARSEI MEDIUM FINE, Sll.TORCLAY
, .
U. S. STANDARD SmVE SIZE
4 110 if 30 50 20 '40 60 lQO 200
~ T T ~ I . I ' .
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1 1 I
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1 1 1
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1 0.1 0.01, 0~00i ..
GRAIN SIZE IN l\IIILLIMETERS
CLASSIFICATION NAT we LL PL PI
" (SM) Yellowisl1-brown, Silty SAND 23.7
GRADATION' CURVE
Vll..LAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFO~ .'
" . ' ..
Figure B-3
I
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:z 0 H I-<r: c H ....J 0 CJ) :z 0 u
I-:z UJ u Q:!
UJ 0-
LeG
SAMPLE NO. SB3-3
-4
-2
0 ----r---r--., ~ ~ "'1-0 ~ 2 ~ I
r"\ r\. 4 ,
~ 1\ i'-o r-. ... I-o~ r\ --.. . r--r-. -r-..~ 6
8
10
12
0 •. 1 1 10
APPLIED PRESSURE (ksf)
Initial Dry Density (pef) 107.0 Initial Saturation (%)
Initial Water Content (%) 22.6 Sample Saturated at (lesf) .
CONSOLIDATION CURVE
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
:
-
-.
100
100+
0.5
I
Figure B-4
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PROJECT NO. 06403-12-01
SAMPLE NO. SB7-4
-4
-2
0 ....., -
z 0 2 ·H ~ <I: ...... C ..... H r.. ... -l "~ 0 CJ) 4 ·z ~ 0 u
~ " z UJ '" U ~ 6 UJ " 0.. r\ ..
"'-\ ,
8
10
-
12 0.1 1 10
APPLIED PRESSURE (kst)
Initial Dry Density (pet) 92.4 Initial Saturation (%)
Initial Water Content (%) 5.4 Sample Saturated at (kst)
-CONSOLIDATION CURVE
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, C~IFORNIA
LCG
..
..
100
'.
18.1
0.5
Figure B-5
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PROJECT NO. 06403-12-01
SAMPLE NO. SB8-3
-4
-2
0 P-'---r--~ -r--........ '" • '" ~ :"-1-00 ~~ ~ z .... 0 2 I"'---. H ~ I-........... ~~ <I: \ ....... 0 r--. H ....J 0 en 4 z 0 U
I-Z l..Ll U 0:: 6 l..Ll c..
8
10
12 0.1 1 10
APPLIED PRESSURE (ks£)
Initial Dry Density (pc£) 113.9 Initial Saturation (%) .
Initial Water Content (%) 18.2 Sample Saturated at (ksf)
CONSOLIDATION CURVE
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
. LCG
..
100.
100+
.5
Figure B-6
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PROJECT NO. 06403-12-01
SAMPLE NO. SBIO-3
-4
-2
0 \~ , '
z 0 2 H \ I-<J: 0 H 1\ -I 0 en 4 z l\ 0 u
I-~ ~ z ......... ~ LlJ U ........ 0:: 6 LlJ '" a..
" 8 '\ -\ ~ ~ 10-,-10 l'\
12 ' 0.1 1 10
APPLIED PRESSURE (lest)
" Initial Dry Density (pct) '106.7 Initial Saturation (%)
Initial Water Content (%) " 23.7 Sample Saturated at (kst)
CONSOLIDATION CURVE
VILLAGES OF LA COSTA -THE GREENS I
CARLSBAD, CALIFORNIA
LeG
..
-
100
, "
100+
, , 0.5
Figure B-7
I
I PROJECT NO. 06403-12-01
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z a H I-<J: c H ...I a en z a u
I-Z LLl U ~ LLl c..
SAMPLE NO. SBll-2
-4
-2
0 .............. '" ~~ r-...... -~ '" 2 r---'" i' ~ ... r..~ ~
r--...... r"\ .. .......... ~ r-..... 4 r--~
6
-
8
10
-
12 0.1 1 10
APPLIED PRESSURE (ks±)
Initial Dry Density (pc±) 116.5 Initial Saturation (%)
Initial Water Content (%) 17.2 Sample Saturated at (ks±)
CONSOLIDATION CURVE
( VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
I
100
100+
.5
..
Figure B-8
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SAMPLE' NO. S83 - 3 APPLIED PRESSURE 2 (ksf)
2180
2200 -.5
"I' 2220 a ..-
X r--2240
CI)
C9 Z 2260 B
L5 0::: 2280
...J '~
C 2300
,
2320
, '
2340 0 2 4 6 8 10 12
VTIME (Minutes)
SAMPLE NO. S87 - 4 APPLIED PRESSURE 2 (ksf)
2370
"
-2380
.5
"I' a ..... 2390 x -CI) . ".
C9 2400 Z I-is
'L5
0::: 2410 ...J <C
Ci
2420 ,
2430 , -
q 2 4 ,6 8 " 10 12
VTIME
' ,
(Minutes)
TIME RATE CURVE I GEOCON e INCORPORATED VILLAGES OF LA COSTA -THE GREENS
GEOTECHNICAL CONSULTANTS CARLSBAD1 CALIFORNIA 6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121 • 2974
PHONE 619 558·6900 • FAX 619 558·6159
AS I RSS DSK/EOOOO DATE 03-24·2000 PROJECT NO. 06403 -12 -01 I FIG. 8-9
, .
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SAMPLE NO. S81 0 - 3 APPLIED PRESSURE 2 (ksf) 2425~~~~~~~~~~~~~~~~~~~~~~~i+++~~~~~
--. 2455 .5
"f
0 .....
x
2485 en (!) z
Cl
US 2515 c:::
...J ~
Cl 2545
o 2
SAMPLE NO.
--. .5
"f o
x -
o
GEOeON
INCORPORATED
GEOTECHNICAL CONSULTANTS
2
t.... r--,....
4
4
6
~ (Minutes)
6
V TIME (Minutes)
o
8 10 12
APPLIED PRESSURE (ksf)
8 10 12
TIME RATE CURV~
6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121 ·2974-
PHONE 619 558·6900 • FAX 619558·6159
VILLAGES OF LA COSTA· THE GREENS
CARLSBADr CALIFORNIA
AS/RSS DSKI EOOOO DATE 03·~4.~!)PO 'PROJECT NO. 06403'·12·01 FIG. 8-10
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SAMPLE NO. S811 - 2 APPLIED PRESSURE 2 .. (ksf)
2320'
..
-2330
.f: " ..
"f
0 ..-2340 X -CIJ CJ Z 2350
is r-.. "_.-
L5 ~ 2360
--I -«
0
2370
2380
0 2 4 6 8 10 12
VTIME (Minutes) .
SAMPLE NO. S811 - 2 APPLIED PRESSURE 4 (ksf)
2410
~ 2420
"f
0 ..-2430 X " . -CIJ CJ 2450 Z ..
0
L5 ~ 2460
--I «
0 ~
'"
2470 i"-
t-
2480
I-
0 2 4 6 8 10 12
VTIME (Minutes)
I TIME RATE cURVE ·GE·QCON 0 INCORPORATED VILLAGES OF LA COSTA -THE GREENS
GEOTECHNICAL CONSULTANTS .,
6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121· 2974-CARLSBAD 1 CALIFORNIA " PHONE 619 558·6900 • FAX 619 558·6159
. AS! RSS DSK/EOOOO DATE D.3-24"·~DQO PROJECT NO. 06403 --12 -01 I FIG. 8-11 -._--._--"'-', .
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APPENDIX C
BORING AND TRENCH LOGS
AND CONE PENETROMETER. TESTS
FROM
PRELIMINARY,SOIL AND GEOLOGIC IN VESTIGA TION FOR LA
COSTA -NORTHWEST AREA, CARLSBAD, CALIFORNIA,
PREPARED BY GEOCON INCORPORATED, DATED NOVEMBER 11,
, 1988 (PROJECT NO. D-4230-H01) ,
And" "
.' PRELIMINARY RIPPABILITY STUDY, LA COSTA NORTHWEST,
CARLSBAD, CALIFORNIA, PREPARED BY GEOeON
INCORPORATED~ DATED SEPTEMBER 25,1996 (PROJECT NO. D-
4230-12-03).' .
-FOR
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
. 'PROJECT NO. 06403~12-03
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File No. D-4230-H01
November, 11, 1988
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II: > w III ... ,(!j ~ 1Il_ BORING 1 0 :5'" ...J C tJU . ll5 10/5/88 0 z ...Jill ELEVATION DArE DRILLED ~ :::> -:::> ~ 0-::l III E:-IOO 30" (!) EQUIPMENT Rotary Bucket -
MATERIAL D,ESCRIPTION
v·;'·; ;:':'/'1
: /:~~:~
ALLlJVIUH
CL Soft, 'tvet, very-dark brown, Sandy CLAY
~:.:..,:.....!J--lf----' -:-' , '/<'?: . L-'---~SO-f-t-,-w-e-t'-,-d-a-r-k-r'-e-d-d-~-' s-h---b-r-o-wn-,-s'-a-n-d-y--
.. '.'. CLAY ... , .
'V1':::":" , ... . ' ... ..
to" '11. .... ..
• r \. • 'I~:<:l
'r~:::; r::/:
Vk<": :,::>~,:,:: ~': . . .
• f ••• . . .' .-..
.' • I ..
CL
~~':'.:.:'( .... .. i: _ :-. -.-0, ___ _
::::. :.I!,-' ._ -\' ,-water table rising (caving)
, 'J" .\. '1' ' ' ..... '.' L-__________________ _
·:1' ,\.. t.:. SM-SP
::,,) ',:'.
: .. (..( 1".: ":.>"\
lv1edium dense, \Vet, gray, sli:ghtly, Silty
fine to medium SAN~
:: .j':.,,:.:........ \
, • ..... L_ 1211 clean sand V··::·: bI " •• : ::-: ':j ...... "/.:.
CL L--______________ . __ _
,Soft, wet" dark reddish-brqwn, Sandy, CLAY
BORING TE&~NATED AT.21.0 FEET (REFUSAL)
I Figure A-l, Log of Test Boring 1
"
..
Z '~ g~t w;j!
~~Cil ~u; 11:...: ~ ~~~' Wu Cc; o~ ZIll...J > w"'111 II: :=:8 c.,1I: C
I-PUSH 112.5 16.6
12ft
ULK SOOLE
l-
I-
I'"
PUSH ~08.8 -12il' 19.6
:-
i'"
-
-PUSH 1.07.1 I-121~' 21.1
I-..
.....
I-
PUSH 97.3 1-18" 30.1
ro-
l-
t-
~
I-
----
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL
~ _ DISTURBED OR BAG SAMPLE
IJ_STANDARD PENETRATION TEST
~ _ CHUNK SAMPI.-E
• _ DRIVE SAMPLE (UNDISTURBED)
~ _ WATER TABLE OR SEEPAGE
NOTE: THe LOG OFSUBSURFAce CONDITIONS SHOWN HeREON APPLies ONLY ATTHESPECIFICBORING ORTRENCH LOCATION AND
ATTHE DATE INDICATED. IT IS NOTWARRANTEDTO BE REPREseNTATive OF SUBSURFACECONDITIONSATOTHERLOCATIONSANDTIMes.
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File No. D-4230~H01
November 11, 1988
a:
d >-W '" BORING 2 z t!I !< "'-~ ~ 0 3: <til
tzw W oJ C -'u -125 10/5/88 -' 0 ulIl ELEVATION DATE DRILLED -w-w ... z c u. :l: ~ :> =::; ~ 0 0-;j ::l It '" E-IOO 30tr Rotary Bucket t!I EQUIPMENT
0 MATERIAL DESCRIPTION
~ -V':-:" .... ALLUVIUM
~ · ti1 CL Soft, moist, dark bro,:m, Sandy CLAY • • '0' ,0 2 ',' ' .. ... -' , . . " ...... · ., ..
... -IV B2-1 , ... :' .. becomes orange-yellow-brown, wet ... 4 .' '," 1----f----., ,
~ • B2-2 k0 ': .. " .. ' .
~ 6 • '0 .' -. "0 ,. 1----1----becomes dark reddish-brown • .' I ., ' ... -. ~ S • to. to', ... · • "0 ". ' .. ' . '.
~ • B2-3 .[0 'I.·.· .. :
~ 10 _
::. I ..... ' • : · ... ' " .
I--.:. "X Iy 1----1----strong table caving I ' .. ,. seepage -water -'" • !'o' .:. --12 _ .......... I-">::::.:'~:; SW
I--· · ': .. ' ..... :. ~
CL--h Loose, saturated, light brown, coarse 1%:': .:::,:. SAND r-: 14 .. : ...... ;,;-1\
i-· ---L
Soft, saturated, dark brown, SandY.CLAY ~ ·
i-·
I--BORING TERJ:1;INATEO AT 14.0 FEET (REFUSAL) ~ ·
~ -
~ -
--
--
I---
I--
~ ·
--
"--
I---
Figure __ A-2, Log of Test Bor;Lng 2
---. --l
6w . ~ wi!! _uti: iii It,.: ~~U! z..: ::lz ~12~-wtj ~J:! Co.: OZ z"'-' >--::;8 wW'" It c.1t C
...
...
_PUSH
12" 110.1 16.5
....
I--BULK lu'1PLE
l--
l-
~
I-PUSH
12" 99.0 24.0
1--
l-
l-
~
l-
'1-
~
i---
!---~
-
I--
i-
....
...
...
...
....
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
~ _ DISTURBED OR BAG SAMPLE
IJ_STANDARO PENETRATION TEST
IiJ _ CHUNK ~AMPI..-E
• _ CRIVE SAMPCE (UNDISTURBED)
~ _ WATEJ71 TABLE OR SeePAGE
NOTE: THE lOC; OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING ORTRENCH LOCATION ANO
ATTHE DATE INDICATEC.ITlS NOTWARRANTECTO BE REPRESENTATIVE OF SUBSURFACE CONOITIONSATOTHER 1.0CATIONSANO TIMES.-
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File NO. D~4230-H01
November 11, 1988
a:
d >-W CIl z 0 ~ CIl_
:t 0 :: <ri! li:ztii III .../ C .... (j ... 0 z Uri! llJ-W 0.. i: :::$ C Ii. ~ ::l ft 0-~ ::; CIl (!)
0 y,: .'.
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2 -• : : '0 '0 : •
o ..... · .... ' .. -~-B3-1 . . .
4 -· :':": ,. I ... ...... -b.0 o ," •
6 · ..... -· '. : .. " .. :
'0 •••• ' .. -':''':,2 .' .. ' ..
8 -: ......... :
B3-2 1(::.:':'; .. I' -•• " Yo ~C-CL :-.' /.: 10 -B3-3 · .;.~.:.
. ;i' .• ' .. : \ . ~:'.'., ....
rPr " •••• I
12. '.0,' '. ,_ ,°,,:·0· . CL
• I •• " -~ 1---
, . . 14. ' ... r ... ' .'
.::.:: .~:~ ~ B3-4 -1/'
16 -~; /
1/ -~' ..
18 -/ ML
~ .... -
-B3 .... 5 f/ ~"
20 -/
B3-6 -I /
22
-
-
-
-
--
-
BORING 3 aw . ~ wll'! _tJl;: ~u: 0:,.: 155 . 10/5./88 t(z ..... ELEVATION DATE DRILLED ~~~ ::lz llJ(j ~~ Cc.; llJ-O ZCll .... >-OZ
EQUIPMENT E,...lQQ 3Q" Rota.:l:::l Bucke"t wllJaI 0: ~8
" " 0..0: C
MATERlAL DESCRIPTION ,
ALLUVIUM
Soft, wet, dark brown, Sandy CLAY -
I-
I-
I-PUSR 09.8 16.5
I-12 ":
~ -
l-
I-PUSH Loose, wet, light brow.n-ora~ge, very 1-1/311 11.0 17.'2 Clayey fine SAND
I-BULK ~'AMPLl
I-
Soft, saturated, mottled o live-wet to l-Sandy-Gravelly orange, CLAY
t\.. .~
l-\ L_ isolated 12" rock . 2/ ..
I-6 II 13.2 17.4 1\ .
DELMAR FOru1ATION f:-Hard, moist, medium olive, Clayey very
SILTSTONE, massive 1-'
1-5
I-18.6 15:3 -BULK j.AMPLl I-
BORING TER.~INATED AT 22.0 FEET --
l-
I-
I-
l-
I-
Figure A-3, Log of Test Boring 3
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
18l_ DISTURBec OR BAG SAMPLE
IJ_STANDARO peNETRATION TEST
"~_CHUNK SAMPl.:e
• _ DRIVE SAMPLE (UNCISTURBEO)
~ __ WATeR ,TABLE OR SeePAGE
NOTe: THE LOG OFsuaSURFACECONCITIONS SHOWN HEREON APPLIES ONl. YATTHESpeCIFIC BOAING OR TRENCH LOCATION AND
A TTH E DATE INCICATED.IT IS NOTWARRANTeD TO BE RePREseNTATIVE OF SUBSURFACE CONOITIONSAT OTH eR LOCATIONS AND TIMes.
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File No. D-4230-HOI
November 11, 1988
a::
0 > UJ en
z 0 l< rn_
~ .... 0 3: <<Il UJ ..... C ..... ej I1-ZUJ ~ '0 uen w-w 11-~ z =::i C ... :ll :>
< ~ ~ 0-III en Cl
0 i-V .. ··· °0 , t .. ' • .... . -. i--K .......
I-2 -· .. ' .. : CL
.... "." .. t. '.
I-_ B4-1 '" -,
I-4 -VS I--\0 f-----
6 ' .'
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8· B4-2 V .. ,', ..
~ -0° ••••
• B4-3 0. :. "
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:':', :' '.l-I .. t----
I-10 _ :.:,'; ":1.: :::
.: ..... :.:.: .. SVl
l-. ,-... W0 12 :. ' ,
~ · .'. ,"
B4-4 .1 ... : . .. .....
I--' . .k0 I-t4 _ .. . CL ' . . ..... '.'-' · ....... I--@ I-16 _ . , .
:.:. : '0' .~.
.' "" ..
I--V I-18 _ •• " • I, •
'0 .. • .. .. .. .. ' " ...... · .. "'. I--...... " .....
I-20 · ....... · :;< '0 0 , ..... '
. i---. -
--
l-.
I-...
I--
l-.
--... -
BORING 4 ZUJ Qut
12Q; !<z_ ELEVATION DA.TE DRILLED 10 lSl88 a::~~ I tij!!lo E-lOO 30" Rotary Bucket zen ..... EQUIPMENT wwO) c..CI:
MATERIAL DESCRIPTION
ALLUVIUH
Stiff, moist, dark grayish-brown, Sandy roO
CLAY ~
~ 1
~
--becomes very ¥Loist ~
~
~
~PUSH
12 rr
I ..
i---strong (in sand) table (caving) I-seepage -';vater
~
~ Loose~ I-saturated, light brown, cearse
I-PUSH LSA.t.\lD
~ 12"
Soft, wet, dark bro"tffi, Sandy CLAY I-
l-
...
l-
1-.
i-
BORING TERHINATED AT 20'.0 FEET" (REFUSAL) ...
--.-
l-
l-
)r-
I-
i-
i-
Figure A-4, Log of Test Boring 4
~ UJiI ~u.:' 0:.:--:>z Wej ;~ Q~ .06 > a:: :::u c
11I. 15.7
103.( 20.3
ULK S~1PLE
105.3 21.2
,
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL
18l_ DISTURBED OR BAG SAMP1..E
IJ_STANDARD PENETRATION TEST
iiJ _ CHUNK SAMPL-E
• __ DRIVE SAMPLE (UNDISTURBED)
~ __ WATER TABLE OR SEEPAGE
NOTE. THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHESPECIFICBORING ORTRENCH LOCATION AND
ATTHE DATE INDICATeD.ITIS NOTWARRANTED TO BE REPRESENTATIVE OF Sl:1BSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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File No. D-4230-HOl
November 11. 1988
_ 0
--. 2 --
--_ 4 _
--_ 6 _
-
d· z
W ..I Co ~
7':'·:··
.' ...... .......... . '. 10::"'::':',
BS-l '.: ....
T::·:,·~~··:~ . .' 0. " .....
:.':.:'.\1:
y:'.~ ..
_ 8 _ ~'.-: .:.
CL
BORING 5
ELEVATION ___ 1_2_0 ___ DATE DRILLED, __ .....:1::..::0~/.=.S...L../.::.8:=..8_
EQUIPMENT E-lOO 30" Rotary Bucket
MATERIAL DESCRIPTION
ALLUVIUM
Soft. moist, dark brown. Sandy CLAY
-BS-2 ~ ..... :,.: .. :
... '." = 'lO~ V -----becomes wet
~ -"12 _ ~<~.) -e----strong seepage; water table (caving) ~ .' •..• .,.~ '-"1
BS-3 .:':'.~'.:.: . ~ ~ -::.':'.::. :~: SW L-o-o-s-e-,-saturated, light brown, coarse
~ 14_ ......... :.. SAND
-.
_ 16_
--
/.-:.... L ______ . _______ _ '>.',:> .. ; /. ...
.. " ..... . ...... ... .
0" " ... .. ".t .. ..
CL
SW
Soft, wet to saturated, medium bro\Yn,
Sandy CLAY
". :" ".-. ~ ~:~ -:; I-18~ ____ ~ __ ~-+ ____ ~ Loose. saturated, light brown, coarse
SAND
-
-BORING TERMINATED AT 18.0 FEET (REFUSAL) ------
I--
-
-
--
--
Figure 4-5, Log of Test Boring 5
~
f-pUSH
12 " 02.6 10.3 -
-----
1/1211 -... 10.8 19.0
-
I-
~
1/12" 05.8 .,. 21.4
--
-
l-
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I-
~
-
-
~
...
---
-'
SAMPLE SYMBOLS 0_ SAMPLING UNSUC;CESSFUL
~ _ DISTURBeo OFt BAG SAMPLE
IJ_STANDARO PENeTRATION T~ST
IW _ CHUNK SAMPl:e
• __ CRIVE SAMPLE (UNOISTURBeO)
~ __ WATER TABLE OR SeEPAGE
NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIESONL Y ATTHESPECIFICBORING ORTRENCH LOCATION ANO .
ATTHeOATEINDICATEO.ITISNOTWARRANTEDToBERePRESENTATIVEOFSUBSURFACECONOITIONSATOTHERLOCATIONSANOTIME5.
.-------------------------------------------------------------------------------------------
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File No. D-4230-HOI
November 11. 988
a:
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I-4 -
6 en BORING ~u; ...Ju .122 10[6[88 Uuj ELEVATION DATE DRILLE;D :::!::s 0-en E-IOO 30" Rotary Bucket EQUIPMENT
MATERIAL DESCRIPTION
CL,_ ~ ALLUVIUM
Loose to medium dense, humid, tan, silty
~ine SAND with some clay
SM
Medium dense, slightly moist, tan, Silty '",,>(,,' .' fr\:, fine SAND I-with little clay, small chunks -of alluvium in sandy matrix B6-1 :-:I',{ I-6 · :":1: ~I:':'I:,: -
!-· ... ~ '. , .
!-8 · :'1>1:: I,',
!-· .. :i,: :(1::' : I,:.'. 0'
I-10 -"1''1''1'' I~ " " B6-2 ,::/:[,:: I--I' .. ," ..
~ • • ' I I,
I-12 -':~' '1:'1:,
.1---'; 1::(,1 :~.
'.:1' '·'::1:'· .1-14 • '. t' ,'" . ::'."-/-,.1::. .
I--I.··· .
16 -B6-3 :'.1':1." :
I-,-('1::(
i--::.1::'(,:::
I-18 -::h::,::: ~ 1----f---strong seepage (caving;)
I-:/1:~1:::
\ :... 20 -BORING TERMINATED AT 19.0 FEET --
-----
I--
i--
I----
--
:
I--
Figure A-6, Loglof Test Boring 6
5w . ~ w# ;:::gt !!l..: a:,., "«0-:::oz ~~~ Wu ~~ Q~ zrll-l ,. Oz
WW'" a: ::08 11.CC: c
:...
--
I!-
!-
3 106.7 13.8 I-
!-
.' l-
I I-
:...
4 111.0 18 . .5 :...
I-
-I-
l-
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3 110.4 18.0
l-
l-..
l-
-
-
I-
i.. ..
--
!-
I-
I-
I-
SAMPLE SYMBOLS o _ SAMPl.ING UNSUCCESSFUL
r8J _ OISTURBED OR BAG SAMPl.E
(]_STANDARD PENET'RATlON TEST
iJ_C.HUNK SAM?!.'E .
•• _ D.RIVE SAMPLE (UNDISTURBED)
f --WATER TABl.E OR SEEPAGE
NOTE: THE LOG OFSU8SURFACECONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH LOCATION AND
ATTHE OATEINDICATEO. IT IS NOTWARRANTEO TO BE REPRESENTATIVEOFS UBSUAFACECONOtTIONSATOTHER LOCATIONSANO TIMES.
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File Nd.D-4230-H01
November 11. 1988
I-0
1-. -
I-2 -
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~ 4 _
-B7-1
~ 6 _
--
~ 8 _
-.
I-10_
~ .
J'
I-12.
r--
~ 14-
I--
... 16 _ B7-2
--
I-18-
I-•
I-20·
I--
I-22-
I--
~ 24-
I--
I-26-
~ -
I-28-
I--
30
B7-3
;/.' .'., · ... ' .,'.:: ';' .... ;~ · :-:;. ': " ,',/.:: .. /'. . . ~' .. :.:' ''': ' ..... ": y~;
'···Z·" ::.z-:·.: b'-';:: .' ... , :>. ::./ .... ~ ...
'·:.:r,':' '. ." .. '. ,., ...... ,
:':':::)
~.~:~.'.' ... ,:..: ... '. :':;-:-':'. !it: ...• . -.. (' . " '.' :;,. · '.: .;; :'. ;::-:;.. -::'.: r.:!-· " .. ~.--" .. ..•.. ::.:.:-;. : .. ," .~ ...
BORING 7
ELEVATION
EQUIPMENT
300 DATE DRILLED 10/6/88
E-100 30" Rotary Bucket
MATERIAL DESCRIPTION
SM TORREY SA-~STONE
~ I---"":;>h \ .\
\
\
\
Loose, dry, tan, Silty fine SAND
Dense, damp, tan, Silty, fine to medium
SANDSTONE, cemented
L cobbles
f----~.
\ L_1;>ecomes gray. less cemented
r
HI.
SC
1-------
r-
I t---~
depositional contact: N30E75E
Hard. moist. gray, Clayey SILTSTONE
Very dense, slightly moist, gray, Clayey
fine SANDSTONE
becomes light blush gray and sl~ghtly
cemented
becomes light greenish gray
S.Il1 -+--
l-
I-
r-
I-10/ 1l~.2 6.7
I-6lT
l-
I-
I-
'l-
I-10/ ,108.4 16.5
11"
r-
l-
I-
I-15/
I-611
109'.3 7.1
Figure A-7, Log of Test Boring 7 BORING CONTINUED NEXT PA~E
. SAMPLE SYMBOLS 0_ SAMPI.ING UNSUCCESSFUL
~ _ DISTURBED OR BAG SAMPLE
IJ _STANDARD peNETRATION T~ST
iJ _ CHUNK SAMPLt
• _ DRive SAMPLE (UNDISTURBEDI
~ __ WATER TASLE OR SEEPAGE'
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON AF.'PLIES ONL YATTHESPEC1FICSORING OR TRENCH LOCATIONANO
ATTHE DATE INDICATED. IT IS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACE CONOITIONSATOTHER LOCATIONSANO TIMES,
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File No. D-4230-HOl.
November 11, 1988
I%:
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!i:ztii w -' -'u -' 0 c u'" w-W 11. Z o ... == IE ::l :::;
0( ::; @ 0-
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30 ,:I\,::\:'f: -.. ' ..... ,., .....
:j" roo,:. 32_ • I .. I
" , ::(:'1:"1-':' , , -:\\{:( 34'-:, ':. ~:.;:.:,: -B7-4 ' ''1''\-', <1':\:( 36.
"\' ::C::l:.'\.:·:' .. '\' -.' , " 38-::I·jj·:
'" ::1::'\': 1----'" -0,' .. I •
40-:-: '(1" " ,
':H) B7-5 ' .. -~ ,:,:\::.'1':: ...
42-. . " ' 1 ' ' :,f: '·1" .. " ",' -.... , -.. ' r \" :"". ,,',. " 44->'\-".(,'(. ~> , , :,:1,:': 1:':1',:: /.;'
46-
-
-
-
----
-
-
-
-
--
" -
BORING 7 (CONTINUED) 2:w Qut;; ~ w' ~~rn ~..: 1%:1-'
ELEVATION DATE DRILLED 1Q/6.188, ::lz ~m~ Wd ~~ Oc;
2:"'-' >-Oz WW", II: ==8 EQUIPMENT 11. a: 0
MATERIAL D'ESCRIPTION
Dense, moist,
SANDSTONE
greenish-gray, Silty fine ~
-
" -
~
, ~ 15/ 103.7 7.8
-~ 6"
~
becomes light --bluish-green ~ gray
i-
I-
i-,~UL1{ S~LE
--
f..--strongly cemented --
BORING TERMINATED AT 45.0 FEET -
-
l-
l-
r---
i-.
-
l-
J I-
l-
,~
~
I-
-
Figure A-8, Log of Test Boring 7
SAM PLE SYMBOLS o _ SAMPl.ING UNSUCCESSFUl.
t81_ DISTURBED OR BAG SAMPl.E
[I_STANDARD PENETRATION TEST
iJ_CHUNK SAMPl.;E'
'. _~ DRIVE SAMPl.E (UNDISTURBED)
~ _ WATER TA81.E OR SEEPAGE
NOTE: THE LOG OF SU8SURFACECONDIT10NS SHOWN HEREON APPI.IES ONI. Y ATTHE SPECI'FIC80RING OR TRENCH I.OCATION AND
ATTHEDATEINDICATED,ITISNOTWARRANTEDT08EREPRESENTATIVEOFSU8SURFACECONDITIONSATOTHERI.OCATIONSANDTIME5.
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File No. D-4230-H01
November 11, 1988
d >-~ til
% tIl_ <CIl B01UNG 8 8 :I: ... ;: w "'u ffi~ti1 ... 0 c "CIl ELEVATION <I. z Q ... :; ~ ;:) ::!:;i 0-
, ___ 3_0_S·_..--_DATE DR ILLED,..----..,;1;;,.;;O..:../.;...7 1:..,.;8:;.,;;8 __
< til
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r-14 -.. -
~ 16 B8-4 ---
_18 -
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.. 22 -
--
_ 24 -
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SM
EQUIPMENT E.-lOO' 301T Rotary Bucket
MATERIAL DESCRIPTION
TERRACE DEPOSIT
Very dense,moist,.light reddish-brown,
very gravelly Silty coarse SANDSTONE; g~it
pebble size gravel.
f sharp depositional contact; N50\tl, 15SH'
TOIL~EY Sk~STONE
Very dense, moist, light tan, Silty fine
SANDSTONE, massive, some orange, laminated
thin beds
Very hard, moist~ +ight tan, olive, orange,
~~-SC n Silty ver~ fine SANDSTONE, some clay
I
\
\ ' L_ bedding N4SW,3NE
~--:I' I L_ bedding N10E ,8W
_____ ._less clay
-
i-
i-
-BULK -
10/ 116.9 _ 11"
BULK ,-
--
I-
r-
r-
I-
r-
-
151 1-24.2
-lO" ....
l-
i-
~
r---
1-'
i-15 119.6
i-
i-BULK
~
i-
Figure A-9, Log of Test Boring 8 BORING CONTINUED NEXT PAGE
SAlyjpLI
7.3
SA.7'o1PU
5.0
7.8
3AMPL!
. SAMPLE SYMBOLS o _ SAMPI.ING UNSUCCESSFUL .
~ _ DISTURBED OR BAGSAMPI.E
IJ _STANDARD PENETRATION TEST
iJ_CHUNK SAMPL-e
• __ ORIVE SAMPLE (UNDISTURBEOI
~ __ WATER· TABLE OR SeEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH LOCATION AND
ATTHE DATE INDICATED.ITlS NOTWARRANTED TO BE REPRESENTATIVE OFSUBSURFACECONDITIONSATOTHER 1.0CATIONSANO TIMES.
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File No.
November
D-4230-HOl
11 1988
a:
> ~ ." .0 ~01 0
BORING 8 (CONTINUED) d z w .... ... :E
...l 0 :I:
~ ...lej z: tJct.I
:l =;:; ELEVATION DATE DRILLED,_-=lO"-,/....;.7-<-/..;;;..8,,,--S_
!-30
...
~34
I--
1-40 ' -
I--...
~42 -
I--
1-44 -
I--
... 46 -
I--
f-48 -
!--
:..50 -
~
-52 -
f-..;
I--... -
:.. -
--
f--
I--
.... IE ::i 0 ~ 0-'."
8M
ML-MR
SH
EQUIPMENT
MATERIAL DESCRIPTION
r--sharp depositional contact with hematite
band in sandstone, 1/8~1/2" wide, no
shearing N70E,118
Very hard, moist, light olive-green.
Clayey SILTSTONE
nearly horizontal
Very dense, moist, light tan-white, .Silty
fine SANDSTONE. cross~bedded and massive
1----1--dark brown layer 6" thi'ck above cemented
layer
1"--...... _-;>1--cemented sandstone' layer 1211 thick, calcium
carbonate cement
BORING TERMINATED AT 51.0 FEET
Figure A-10, Log of Test Boring 8
. ...
... --
to-
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL .
183 _ DISTURBED OR BAG SAMPLE
IJ_STANDARO PENETRATlON' TEST.
iJ _ CHUNK SAMPL-E
• __ DRive SAMF'I.! (UNOISTURBED)
~ __ WATER TABI.E OR SeEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE-SPECIFICBORING OR TRENCH LOCATION AND
ATTHE DATE INDICATED.ms NOTWARRANTED TO BE REPReSENTATlveOFSU BSURFAceCONDITIONS ATOTH.ER I.OCATIONS AND TIMES.
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File No. D-4230-H01
November ,1:1 '. 1988
... 0
r-
r-2
r-
r-4
-
---
d z w ~ 0.. ~
r--t!39-1
t-6 -
r-!B9-2 -
r-8 -
r--
f-10 -
f--
..t'
t-12 -
r--
t-14 -
i--!B9-3
r-16 -
1-. -
r-18 -
i-•
I-20 -
I--
t-22 -
I--
I-24 -
I--B9-4
r-2·6 -
r-.-
f-28 -
f-30 -
>-§
0 ~ ~
~<'I:' '(:,.:. " "X'; "'1' , ':1'" ;," , "/, '~7'1"I': : 'I::I':,!;:~: "0 '.-..... .. ".'.
a: ~ 5: Q Z :l @
C!l
'" "'iii :5d Qul =~ 0-en
se
SM
BORING 9
ELEVATION 245 DATE DRILLED 10/6/88
EQUIPMENT E-lOO 30" Rotary Bucket
MATERIAL DESCRIPTION
TOPSOIL
Loose, damp, dark brown, Silty-Clayey
fine SAND
TORREY SANDSTONE
Dense', moist, light brown-orange~ Silty
fine SANDSTONE, some clay, fracturing
mostly massive
f-._----nearly horizontal bedding
Zw £: ~~t: wi!
~..: a: .... <cur :lz ~~~ Wu ~~ c~ z"'~ >-OZ ~~al a: ~8 c
r-
l-
t:-
r-4 114.6 15.1
r-
l-~ULK 1 .AMPLE
f-
r-
l-
i-
i-
I--
r-
r-7 110.9 17.0
r-
l-
i-
l-
I-
r-
r-
r-
l-
I-8
I-
r-
i-
Figure A-ll, Log of Test Boring 9 I BORING CONTINUED NEXT PAGE
SAMPLE SYMBOLS 0_ SAMPl:.ING UNSUCCESSFUL' IJ _STANDARD peNETRATlON' TEST
18l-DISTURBED OR BAG SAMPLE. IiW _ CHUNK SAMPL-E
• _ CRIVE ·SAMPL.E (UNCISTURIE\?1
f ..... WATER TABLE OR SEEPAGE
NOTE: THE ~OG OF SUBSURFACE CONDITIONS SHOWN HEReON APPLIES ON~ Y ATTHEspeCIFICBORING OR TReNCH LOCATIONANO
ATTHE OATE INDICATED,ITIS NOTWARRANTEDTO BE RePRE'seNTATIVEOF SUBSURFACE CONDITIONS ATOTHeR LOCATIONS AND TIMES.
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File No. D-4230-HOI
November 11, 1988
a:
d > ~
tz:1ii
;z: 8 3: w ... C ... 0 w-w c-o: o II. ::; 5 ;:)
~ !i! C!I
I-30
B9-S ~vVf I--B9-6 I-32 -f-, )/
... -)/1/\
I-34 -v'l I I~ I-
I-36 --
I--
I--
!"" -
I----.; --
"I--
~ -.
I--
!"" -... --, -
I--
I--
f--
I----
--
r--
I--
I------
en BORING 9 (CONTINUED) ~;;; ucJ ELEVATION DATE DRILLED 10/6/88 ... "1 -;:) 0-en EQUIPMENT
MATERIAL DESCRIPTION
Hard, moist, dark gray-olive, Silty
CLAYSTONE to very Clayey SILTSTONE,
CL-ML contains lignitic material
\
BORING TERMINATED AT 35'.0 FEET
I
.
Figure A-12, Lo,g of Test Boring 9
z:w ~ Qut:: will
!<z""'" ~...: a: .... :Jo: i:~~ wcJ "'w Oil:, !:2~ w-o z:"'''' > 0 0 WWIIl a: ::;(,) Q.a: °
10 115.0 15.1 --~ULK~ AMPLE
---
~
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i.-
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1-'
---
-
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I-
~
',.
"
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL '
18l_ DISTURBED OR BAG SAMPL.E
IJ_STANOARO PENSTRATIONTEST
IW _ CHUNK ~A~~l.-e
1_ CRIVE !AMP!.! (UNCISTURBEDl
.f --WATER TAa!.E OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREONAP.PLIES ONLYATTHESPECIFIC BORING ORTRENCH LOCATIONANO
ATTHE DATE INDICATED.ITIS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHeR LOCATIONS AND TIMES,
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File No •. D-4230-H01
November 11, 1988
~ 0
... .~
f-2 ..
f-..
I-4 ..
I-.. B10-1
f-6 ..
f-.. B10-2
I-8 _
I-, -
_ 10'_
-..
~."'"
W'·:.'·:' :~'::' ~>
I-,. .. .
~-<Ul -IcJ tJUl :::!::; o-m
CL
BORING 10
ELEVATION, ___ lS_0 ____ DATE DRILLED,_.....;..l·-:-O,;...l6....;".f_8_8 __
EQUIPMENT E-l00' 30IT Rotary 'Buclce't;
MATERIAL DESCRIPTION
UNDOCUMENTED FILL
Loose to .me"diuIn, damp, medium-dark brown,
mottled Silty, Clayey fi~e SAND
Soft; wet, dark-mediUm olive-brown, mottled
Sandy CLAY
..
_ 1"2 ..
I--
I-14 _
V(.: .:. >. . -, . ......
,,-.. " .. . <.~.;j{
~Irregular, but sharp fill/formation contact I-
slopes in SE direction no debris or strong ~
odors
--
~ 18 _
~.f::.'. :1: 'I' J' .. 1-" ' ... '.
'16 BIO-3 I.~.,(c:. --.. ' ','," ·:r','·: .' :,,::'I>r SM-SW
~'l:: 1=:1:'
DELMAR FORMATION
Dense, moist, .light tan-olive, medium to
coarse; Silty SANDSTONE
f-..
I-20 -
" .. -, '. (. "',,]::-LIrregUlar! but sharp deposition-contacts,
I'-~""''::..:l''';':-J:~'-:.::::+-i--'-I\ nearly horizontal.
~ I . __ ~~. ______ ~ ________ .~ ____ _ ..
~ 22_ I'V
~~
1-" 11.)/
CL
Hard, moist; medium olive-green, Silty
CLAYSTONE, massive, blocky
I-24 .. IV( I
~ .. BIO-4 i 1)1 r_6-811 calcium carbonate cemented layer
.. 26. _ BIO-S . VV I (
I--
30
~ f _becomes medium, light olive, mote fractured - -ril r-__ i lr random slickensided surfaces I 1-"":::::-'-/.,
_ 28 _ I .' , , I
I /,1 ~Ir-slight seepage 1---, J '!!:.I----
~
-
-.. --
!-
--------
g~t::
!Cz-e:~~ w-o z(/l-l WWIll ... a:: .. '
7
14
~. w# ~..: It'"' ::lz W(j .... w
Qa: ~S; )-°0 a:: ::etJ Q
27.6 8.8
22.1 12.6
BULK ~AMPI
Figure A-13, 'Log of Test 10 BORING CONTINUED NEXT PAGE
.SAMPLE SYMBOLS 0_ SAMPt.lNG UNSUCCESSFUl.. •
~ ..;. DISTURBED OR SAG sAMPt.e
IJ_STANDARD ~ENETRATIOtiTEST
IW _ CHUNK SAMPI..-e ,.'
.• _ 'CRIVE SAMPI.E (UNCISTURBECI
~ __ WATER T .... B~E OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHe SPECIFIC BORING OR TRENCH LOCATION ANC
ATTHE DATS INDICATED.ITIS NOTWARRANTED TO BE REPRESENTATIVE OFSUBSURFACECONDInONSATOTHER Loc,:ATlONSANC TlMES.
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File No. D-4230-HOl
November 11, 1988
a:
d >-~ z 8 :: ... w -' ~ Ii:zUJ ... 0 C UJ-UJ CI. z Q ... :::; ~ ::l If rJi ::;
CI
30 I-l!ti----
~ 32 ~ lY0 r--
I I : 34 ~ r-l/r -
I-36 _
-
I--
I--
I--
I--
I--
~ I--
I--
i--
i--
I--
1-. -
I--
I--
I--
I---
I--
t--
I-0
t--
I--
I--
I--
I--
BORING 10 (CONTINUED) '" ~in .... u (J", -ELEVATION DATE DRILLED =:i 0-'" EQUIPMENT
MATERIAL DESCRIPTION
\
BOtING TEBMINATED AT 35.0 FEET
--
.
.
FigUre A-14, Log iOf Test Boring 10
SAMPLE SYMBOLS 0_ SAMPI.ING UNSUCCESSFUl. •
C?J _ DISTURSED OR BAG SAMPI.E
IJ_STANDARD PENETRATION TEST
IiJ _ CHUNK SAMPL.-e
--
:z: f Q~t:: i~Cil ~...: Wu ... "'~ QII: w-o z"'-' >-wWm a: 0. a: Q
-----
I-
r-
r-
I-
1--
r-
r-
I l-
r-
I-
~
l--.-.
---
l-
l-
l-
l-
l-
l-
-l-
I-,
l-
l-
I-
• _ CRIVE SAMP~E IUNOISTURBECI
~ __ WATER TABI-! OR SEE,.~aE
NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPI.ISS ONI. Y ATTHESPECIFIC SORING OR TRENCH 1.0CATION AND -
ATTHEDATEINOICATED.ITISNOTWARRANTEDTOSEREPRESENTATIVEOFSUBSURFACECONOITIONSATOTHER 1.0CATIONSANO TlME5.
w# It ..... ~ffi 6!Z =<8
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File No. D-4230-HOI
November 11, 1988
a:
d )-w
z (!) '< :z: I-0 ;: W li:zw .... -' Q 0 z w-w .. l: ::> Q II. :; I-0 < :;j (/) a: Cl
~O ~ ~ -
~2 -~11-1 ''1:1
~ -g O~
~4 -It: ~ -~ ~6 -.-
I--~ 1-8 -~1l-2 I I I
I---~ I-10 -~1l-3 X ~ .
tlf: l-.
.".
I:-12 -
I--I 1 I~
..p#
i-14 . ~I
f--~ ~ 16 -
~ -~ I:-18 -Bll-4 [(k ~ -
~ 20 -I 1
f--~ ~ 22 -
I:--l2 ~ 24 -
I--1 I 1
IIX ~ 26 -:<I::F:i,'"·
~ • r' • -:·',\".1".:1; :
(/) BORING 11 ~w . (/)-~ wI <aj ;::~~ ~y; -'c.j c:..,
Uaj 30Q 10/10/88 ~~~ ::>z ELEVATION DATE DR.llLED ::::j wtj t;~
0-w-o Co: °6 ZUl .... .)-(/) E':'lQO. EQUIPMENT 30" BQtaJ:~ BlH:ket wWIIl c: :;!.J .. a: C
MATERiAL DESCRIPTION
. 'TI0.P$.OIL . ~p ~~\, -CL Soft, moist, dark brown, Gravelly 9LAY I:-
t1?USH
~10" 104.9 20.1 . ~'"
. 1/4" '\
DELMAR FO&~TION I
Soft, moist, light olive"mottled whit~, ~
Silty CLAYSTONE, highly fractur'ed, ~
CL-CH weathered i-
~PUSH
6" 96.5 26.5 . I-2/611
I:-~ULKl AUPLE
1-------gypsum seam in bedding N50E,22Nr~, potential I-shear filling
1-----1\--becomes
l:-
firmer, with yellow-green~banding I:-mottling -
f----~-bedding-plane shear ~SSE,IS}TW, I-
~" remolded l-slickensided orange/olive clay with
gypsum, throughgoing ~
l-
I-3 106.8 20.8" I-
r-becomes harder, blocky -l-I I I-----Ii 1-' ~harp depositional contact, but with thin
1/16" orange· remolded clay seam, N50W,6°SW . l:-
I:-
l-
U Moist to wet, light olive-tan, slightly I-Silty coarse SANDSTONE .-I-
r-strong seepage ~.
I
Ir-becomes clean sand I:-~ 28 -I:}:(: Bll-5 1-----J I 9 123.6 11.6 .
,. ": ,: I:: I· .. · I:i,..-rocks l-. ~ 1----~
30 ::/'.1;'1:: . ·0 .. 1----1-"
Figure A-IS, Log .of Test Boring 11 BORING CONTINUED NEXT PAGE
SAMPLE SYMBOLS . o _ SAMPLING UNSU.CCESSFUL
~ _ DISTURBeo OR BAG SAMPLE
IJ _STANDARD PENETRATION TeST
IiiJ _ CHUNK SAMPL·E
•. _ DRIve SAMPLe (UNDISTURBeD)
~ __ WAT~R TABLE-OR SEEPAGe
NOTE: THE LOG OF SUBSURFAce CONDITIONS SHOWN HEREON APPLIES ONLY AT1'HeSPECIFICBORING OATReNCH LOCATION AND
ATTHE DATe INDICATED"ITIS NOTWARRANTEOTO Be REPREseNTATIve OF SUBSURFACE CONDITIONS AT oTHeR LOCATIONS AND TIMES.
...
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File No. D-4230-H01
November 11, 1988
II:
d ,. ~ 0 z ~zlii w 0 3: .... . ~ ... o· w-w a.. c ... ::l: ;: ::l ff < :; rn 0
~ 30 ... ': .. ' ~ .. . 'Y' ."J..t
~ -• .,;: "" ".0\",'
I ~32 -
>--
.--
I--
I--
I--
I--
I--
I--
I--.I'
~ -
.~ -
r--
--
--- -
--
~ -
r--
r--
--
I--
~ -
i--
~ -
~ -----
ell BORING 11 (CONTINUED) eIl_ <en .... u 10/10/88 0", ELEVATION DATE DRILLED· =:;; 0-til EQUIPMENT
MATERIAL DESCRiPTION
t contact not visible because of water
SA-~TIAGO PEAK VOLCANICS
Very dense, moist, dark bro'wn, gray, green
porphyritic VOLCANIC ROCK, slight to
moderate fracturing
BORING TERMINATED AT 31.5 FEET (REFUSAL)
-..
Figure A-16, Log of Test Boring 11
z ~ Q~t =:z ...... ~u: ;:~~ wu Co: w-o ztll .... ,.
~tl!lD II: C
~
~
~
l-
~
~
-
~
~
-.-
-. --
i-
~
f-
f-
I-
l-
I-
l-
I-
....
~
~
-
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUl.
~ _ DISTURBED OR BAG SAMPl.E
IJ _ STANDARD PENETRATION TeST
IiJ _ CHUNK SAMPL-E
• _ DRIVE SAMPl.E (UNDISTURBED)
~ __ WATeR TABl.E OR SEEPAGE
NOTE: THe l.OG OF SUBSURFAce CONDITIONS SHOWN HEREON APPl.IES ON!. Y ATTHESPEC.lFICBOR1NG OR TRENCH 1.0CATION ANO'
ATTHE DATE INOICATED. ITIS NOTWARRANTeDTO BE REPRESENTATIVE OF SUBSURFACECONDITIONSATOTHER l.OCATIONS AND TIMes. .
",;j! a:.1·" ::lz >-UI r:2~ ~8
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File No. D-4230-H01
November
0 Z :z: I-S:zUJ w ... w-w "-Q u.. ::; < til
~ 0
-
~ 2 _
-
~ 4 _
11, 1988
..
>-CJ 0 ... 0 §
::i,'\::I:-':
: ',,',"1:' 'i::
I .' c ".', ':1'.:",,:: .
, "I I. t. ' • ':I·:Ir .'1".: " ,'.',' 'j,:,::
". f. I" ",
· '·'1:"::
: 6 ~ Bl2-l I'~'" "
B12-2 ~ .
~ -V
~ -./
a: w 1;( ~ Z ::J ~ CJ
.tIl '~<ii -'(j 0", =::s 0-til
8M
BORING 12
ELEVATION, ___ 2_1_5 ___ DATE D RI LLED'_.-I..1l./..O t-17w/u;8;u;81-_
EQUIPMENT E-100 30" Rotary Bucket
MATERIAL DESCRIPTION
TORREY SANDSTONE
DenSe, moist, tan, Silty fine SANDSTONE
~ nearly horizontal depositional contact
DELMAR FORMATION
Hard, moist, olive-orange, mottled,
Clayey SILTSTONE
bedding horizontal
~ 8 -r-,l/ /
!/ 10 _ I:-•• -;,.,_~ ••• ~-:"".-,+-11-----1---
I-. '.1,.1" Dense, moist, light olive-tan, Silty
... _ '. '.'.J '.1', fine to medium SANDSTONE, interbedded
oJ' B12-3 .. : ·,>1" SM thin siltstone beds ... 12_ • ' " ' . . :,: .1'.". --
_ 14_
I--
!"" 18-
-
~ '1' '.1-:1:,
.' 1'.1',1,,'
': i': r:I,,'
:(",,' : · ',,',,', " . , . :',:,1.<
· "1' ',1' !, " :'1.'1:-1.-'J.: I·' J .'
. :J .. I', I':
""'1 " '
I-20 -B12-4 ~':/::I:-" 1---..
,'j' .I,. J.: _":-'::>1---cemented zone -
~ 22-
I--
I-24-
J--!-' ';:' .. :......; •• +--r-:::::....---h ~I I I'L---________________________ __
: ~ ~~~ ~: ~-~ii
Very hard, moist, olive mottled with
yellow~orange, Silty CLAYSTONE
, ,j/ // \ ~----~~~~~--~\ -
-26-
--
--
I--
I
l_ cemented zones
becomes brown -olive
BORING TEP~INATED AT 25.0 FEET
Figure A~17, Log of Test Boring 12
l-
I-
I-
3 I-
~
_ 9
-
-
---
:-5/
5" 1-.
l-
I-
107.0 20.3
~ULK S~LE
116.0 8.0
111.6 9.3
SAMPLE SYMBOLS 0_ SAMPLING UNSUCC\:SSFUL
18l-DISTURBED OR BAG SAMPLE .
IJ_STANDARO PENETRATION TE;ST
IiiiJ_CHUNK SAMPL·e
• ~ DRIVE SAMPLE [UNDISTURBEO)
=f -WATER TABL.E OR SEePAGE
NOTE: TH E LOG OF SUBSURFACE CONOITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR·TRENCH 1.0CATION AND
ATTHeDATEINOICATeD. IT IS NOTWARRANTEDTO ElE REPRESENTATIVE OF SUBSURFACECONOITIONSATOTHER 1.0CATIONSANO TIMES.
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File No. 'D-4230-HOI
NnVe1nhp.,.. 1 'HllH
d z
'" ..J "-~
BORING 13
ELEVATION,_----:3;,;.;2;.::,5 ____ DATE D RILLED, __ .=.1~OL( 1::..:0~/~8~8~
EQUIPMENT E-I00 30n Rotary Buc.ket
MATERIAL DESCRIPTION ~ a ~----4-__ ~~~---+--------------------------------------------+---~~--~----::":.:::'1:':' TORREY SANDSTONE -'.'1'.· '.:,:': SM-ML Dense, moist, light tan, Silty very fine
,,;(: :.,'.' SANDSTONE, to Sandy SILTSTONE; laminated I-2_
~ -
I-4_
::::i:'.~ ;·.:f~ to massive with orange banding
'::(:':1':': --
6 !B13-l .... .
-.
i"': ::~ :-:i:·.: ..
''':''1''
··1······ :' .'. ',' , ......... :" . I . '. .
1---11. ~edding N45W,7SW
.' ' ... ,'.' .. ~r .. ; ~:r r .con,' tac.t sharp, N45W, 15 °SW ~.~:.r.~.:~ .. ~:I.~.~~~~-. __ ~~t--___________ _
~ 8_
I-'.
!-10. ' Hard, moist, light olive-tan, Clayey
vl,/'ff.' ML SILTSTONE
~ ..t' •
I-12. .-+--1---:. j.':' .::(:.
..;
~ 14.
',".(: ;"1::' ::/"::( 1-: ~ . .': '.: ,'.:
16. B13-2 I:.: :':1:: .... ~ .. B13-3 1/\ ••• .: :,:.: _. 1'-:' • : ~ i.: :'. r',: ~ 18-
.
I-20.
-
I-22·
-
I, ",
".!,: :: I.:
.: (: • '1"
'.\:. ::'1'::' .:: ~, :: ::
'. ,.: .: ~ ~
'. '{'. ::,' ..
, '0'
:.~ I:: ::··i::
I-24-::,:.: ::io',
!-. -B13-4 1',':-::1::·
I-26-:: { ).:
-
to-28.
-
30
":1': ",'. . ", ....
. '''1'' ;-:I:'. '.,:. ::1':' ' .. ,:.'.
:::(:: . .f.:-.
.'.:.,: :'. ::')':'.
SM-ML
Dense, moist, light tan, Silty very fine
SANDSTONE to Sandy SILTSTONE, laminated
to massive
r-__
1-_":> --greenish-gray zone
l-
I-
l-
8
I-
1-11
115.9 7.0
113.7 16.0
BULK ~AMPLE
112.1 10.5
Figure A-IS, Log of Test Boring 13 BORING CONTINUED NEXT PAGE
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL'
~ _ DISTURBED OR B.4,G SAMPLE
[]_STANDARD PENETRATION TEST
iiJ _ CHUNK SAMPI.-e
• _ CRIVE SAMPLE (U"NOISTURBED)
~ _. WATER TABL; OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH l.OCATIONAND
... TTHE DATE INDICATED. ITIS NOTWARRANTeDTO 8E REPRESENTATIVE OF SUBSURFACE CONDITION\> AT C>T/-iER LOCATIONS ANO TIMES.
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File No. D-4230-H01
November 11, 1988
d z w ... 0-
::lO ili
>-C!I 0 "" '0 :r ... ::i
a: ~ ~ c z ::. ~ C!I
III BORING
!;QUi ""(j Urn ELEVATION =::; 0-III EQUIPMENT
13 (CONTINUED) Zw Qut ~ will i!cn ~u: a: ..... ~ffi DATE DRILLED .... Ul;;: wt,j ",-0 Cc.: 5~ ZUl...r >-~~al a: ~8 C
-30~--------~~~4------4------------------~--------------'-------------------+--~;---~------':,j::'F
MATERIAL OESCRIPTrON
--
-32-
--
-34-
-
1-.36 -
-
I-38 -
-
I-40 -
-
.". ~ ,42 -
-
: :j>' >,,',:' .. ' ....
• • ' I ' '. ' .. ': I: ,J.' ",< :' ',' ~~---.... -.-,,1, ,',' ' ... I • :'r';:r:
:':1:: -:',::
., I I.' :.: ,',
slight seepage
>,:, ,:1;-
'::{ ,;1'.: ~I-'------slight s,eepage : ·r: ::i:': ...
,,{.::,:',
': ...... :. 1------bedding horizontal
.','" '1' :,:.{:;/
:":1';: :::1:; .. . ,.r " .'
"I' ':1"
:: :J:": :.\':,
'::('.:r:-~ 44 -: '::1::' :~,(.:' ~ ,...------strong seepage ---I l,-' --:;..-==-~ B13-5 / \\ r-sharp deposition contact,
-
n§)arly
-46 - / ILL-'
-v,l I ----
horizontal
/ ML \ DELMAR FORMATION
I Hard, moist, dark olive to brown, very
1 Clayey SILTSTONE, calcium carbonate
-48 -
-1 cemented lenses
~ 50 -B13-6 L..r!T~~,,~---4rIl'
J'~~ \1 ~,,: I· .
B13-7 , .. x<" L_ dark brown. cE?mented fossil zone approx.
~; .,., \ 8" thick
-.'\'''.. .. ' t·
I • ~I,"
: ; '" ill:.-CL LLhorizonta,l beds ~~ ,':-,
.. 1 • ". I'
:. ::{.: Very hard, dark greenish-gray to gray,
Clayey to Sandy SILTSTONE; scattered coal
i-52
-
-54
-
-56
-
-
--fragments, carbonaceous
I---BORING TERMINATED AT 56.0 FEET
Figure A-19, Log of Test Boring 13
-
--,-
I-
I-
l-
I-
l-
I-
l-
I-
l-
i-
'--
9 106.1 19.8 ---
l-
I-30/ ~38.6 6.8
I-1"
~ BULK .AMPLl
--
...
---
SAMPLE SYMBOLS q _ SAMPI.ING UNSUCCESSFUl.
18l_ DISTURBED OR BAG SAMPLE
IJ _STANDARD F'eNETRAnON TEST
~ _ CHUNK SAMF'L~
• __ DRIve SAMPI.E (UNDISTURBED)
~ _ WATER TABI.E OR SEEPAGE
NOTE. THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON AF'PI.IES ONI. Y ATTHE SPECIFIC BORING OR TRENCH LOCATION AND
ATTHE DATE INDICATED.ITIS NOTWAARANTEDTOBe REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER I.OCATIONSAND TIMES.
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File No. D-'4230-H01
November 11, 1988
~ d >-t!l Z ~ztu 0 :: w -I C -I 0 w-w ... Z C ... :; ;: :::l
< [f CI) :J t:)
0 ~ ''':1' ':1:.\':
l-· ::'\:':1:"'1::::
I-2 -.0. ,.
o ••• · :\: '1<1: .
l-.' >1':1\"
I-4 • ;: :-: .. :-:'0,
:I',H',
~ -1::'\\' 6 B14-1 '1: ~'I=-;I: ,: ~ -.. I r •• .. . -'.1' '1: '1': • • 0°.'
~ 8 · ::I::I:j,::
.~.:.(
l-· .J .....
:1::"( 10' .-....
l-.. • ..... '. I "I .\ . " :. '.,'.
P-· .4 -: .• " ". ... • 1"'1' . 1'-:
P-12. :.1'':,:'· j':.: V····
~ · ?f 14. ,"' """: i-.:' ......
o • ', ... ' ....
~ · IV 16 _ B14-2 ... '.' , " . -X .. 0 .... -: --B14-3 U0 , ,.
18. • '.' • I : ".
i-", ," .. : ' ('" '';
~ .. b.0 20. o " •
I-0 •• • '. 0" •• .. . . '.
I--~ o ','
22-: : '.: • t -: l-t -••••••
I-· 0.3 I-24. ~. i--B14-4 I. : ' • ". 26. ., ...
!-..
• • I •• ~ ". -.
~ · Rf. 28. . ' ..• :1,. ::
I-I":.'· ... '
I-· ·\:·.~i 30 ........
I
III 1Il_ ~.., (,JU -1<4 -:::l 0-CI)
SM
.
1-----
CL
f-----
f-----
f----.-
BORING 14 Zw ~ Qut: UJiI!
10/12/88 ~..: 245 _i~Ci; a: ....
ELEVATION DATE DRILLED :::lz wu "'w ... 1Ill: Co,; :'l~ w-o E-lOO 301l Rotary Bucket Zlll-l >-0 0 EQUIPMENT ~~<Il .• a: :;!"l . C
MATERIAL DESCRIPTION
DELMAR. FORMATION
Dense, moist, light tan, Silty medium to ....
coarse SANDSTONE, massive friable I-
l-
I-
~ 121.1 6.6 6 ... .. ..
-
roots I --..
~
I-
l-
Hard, moist, light-medium olive-green, i-
very Sandy CLAYSTONE, fractured with
random. slickensides surface I-
0 0
I-7 119.4 14.3
!-
--fractured on north side of hole, no i-SULK SAMPLE
continuous plane I-
I-
t-
t-
--becomes light gray and less fractured l-
.1-
l-
--becomes dark gray I-
8 119.0 14.4 I-
P-
l-
I-
. .
Figure A-20, Log of Test Boring 14 BORING CONTINUED NEXT PAGE
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
I:8'J _ DISTURBED OR BAG SAMPLE
IJ_STANOARO PENETRATION TEST
iJ _ CHUNK SAM?!::E
• __ ORlVE SAMPLE (UNOISTURBE~)
.~ __ WATER TABLE OR SEEPAGE
NOTE; TH E Loa OF SUBSURFACE CONOITIONS SHOWN HEREON APPLIES ONLY A TTH E SPECIFiC BORING OR TRENCH L.OCATION ANa
ATTH E DATE INDICATEO.ITIS NOTWARRANTEO TO BE R~?RESENTAnVEOFSUBSURFACE CONOITIONS ATOTHER t,qCATIONSANO TIMES.
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File No. D-4230-H01
November 11, 1988
J: li:ztii w-w Q ...
30 -
;. -
-32_
--_ 34_
-
-
40 ~ .
.' a:
d > w rn BORING 14 (CONTINUED) z t!l Ie ~01 0 ~ w .... .... 0 .... 0 tJuj ELEVATION DATE DRILLED c.. Z :::a i: ::> ~:;j
~ ::; ~ o-m .. Cl EQUIPMENT
MATERIAL DESCRIPTION
~ CL . . '. .. ---:> ___ becomes sandy ..... more :::.: ;:':'.; ;:;; ---
Y CL-CH B14-51~.~ ~·.t·'·:'r.· ~I--> ":'1' .. : ~ 1----h.
Very hard, moist, medium olive-green,
Silty CLAYSTONE
U{( ...... '1 . '--sandstone lenses with seep~ge
I I
I 1 rundulating contact, dipping approximately
1 1 50 at slope . . 1/ f I 1/ I -ju-__ . ________ . __________ _
:··r,j:',(:: .. , ...
':I:,I:{:
:':(1:'(-. 0".·
SM
Very dense, moist, orange-tan, Silty fine
to medium SANDSTONE, fining upwards
sequence
'::.1' :1,',1. '. ... -' "~'.
44 :':(I::'~':
- -B14-61~':I':'I::
-~::i':I':
-1-----1----becomes medium-grained, has "cannonball"
concretion on N side of hole -_ 46 _ B14-7 ~:::(I::" r-becomes coarse to very coarse
_ _ :.:I:\:{ Ir-rip-up clasts
-48_ :",:\':j';; IIFcontact irr~gular~ channeled ~;. :\.~I~\·:' I' 50 :"1:':1:.(, 1 il Hard, moist, gray-blue, very Sandy r--, , .. ' I----r'/ SILTSTONE
~ -
~ 52.
.
.. 54.
J',I;:( 1/ :,(,j','I:: I' . ~~r;·;'f.h:·~ iii V-e-r-y-d-e-n'-s-e--, ~s-l-.ightlY moist, orange tan,
'::I;:ci:': ~ ___ I Silty fine to coarse SANDSTONE :'.1: :1:: I:' .
'f ::':':' SM-ML I~ scour surface approxilJ,lately N25E20NW,
- -B14-8 i.":: :: ',: slight seepage
-56.. "j.'>:-'
_ _ I.!".,.;:'::...,",:.,..:,~: .; • .;.:-I-4--__ +'i/ Stiff, very moist, gray-blue with iron ··'j':I··j··' .. S d f _ 58. :':1::(1::', 8M . sta~n~ng, an y SILTSTONE, ractured near
:\.:.1::'1'':: i top ~ no through go~ng remolded zone
'.~J ~·~I? ~:.: -60 ML
--
--13
~ 119.5 13.6
~
l-
I-
I-
~
~
i-
.-
-21/ .128.7 9.8
-10"
-3ULK SAMPLE
-
-
I-
~ -
r-
~
-
"-
-15/ 26.7 10.6
-711
-..
-
I
Figure A-21., Log of Test Boring 14 : BORING CONTINUED NEXl PAGE
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL
~ _ DISTURBEO OR BAG SAMPLE
IJ _ STANDARO PENETRATION TEST
IW_CHUNK S"'MPf.oE
• _ CRIVE SAMPLE (UNOISTURBEDI
~ __ WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH l.OCATION ANC
ATTHE DATE INOICATED.ITIS NOTWARRANTECTO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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File No. D-4230-H01
November i1, 1988
a:
d )-w
"Z (.') !< :r .... w 0 3: b:z'" .... .... a
UJ-'" .. 0 z .... ::; :r :I c _ ... < ~ rn :J (.') ..
60 ~ :;'1:·:1: :L::·
~ -I I
_ 62_ B14-9
rn ~u; (JU .... 1Il -:I 0-rn
CL
BORING 14 (CONTINUED) z", ~ wI!
1'0/12/88
gut:: ~..: a:o-: tcz ....... ELEVATION DATE DRILLED l:g~ :lz "'u lill!t all: ",-0 SZ ZIll..J )-
EQUIPMENT UJUJta a: ':::;8 .. a: a
MATERIAL DESCRIPTION.
Hard, moist, olive Silty CLAYSTONE I"'" green, 14 115.0 16.7 with shiny parting surfaces -
B14-~X BULK S ~LE --V1 l( -
-64-! I,) ...
f--.I/Y Hard, moist, gray blue, clayey -
V very
~ 66 _ / ML SILTSTONE with trace fine san~, fissile ~
-l.l -
I--1/ I-
I-68 -v .' ~
" f--v -
I-70 ~' ~ ..
f--
i-..t' -BORING TERMINATED AT 70.0 FEET I-
--I-
--l-
.--. -.1-
--i-
-- -
I---
t--l-
I--l-.
I---l-
i--t-
r--f-
.... f-
I"'" -I-
--i-
t--~
I--i-
i--I"'"
Figure A-2~~. Log of Test Boring 14
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL .
18l_ DISTURBED OR BAG SAMPLE
IJ _STANDARO PENETRATION TEST
iJ _ CHU~K SAMPL'E
• ~'DRIVE SAMPLE (UNOISTURBED)
f --WATER TABLE OR SeEPAGe
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEReON APPLIES ONLY ATTHE SPECIFICBORING OR TRENCH LOCATION AND
ATTHE OATE INDICATED.ITIS NOTWARRANTED TO BE REPREseNTATIVE OF SUBSURI'ACeCONOITIONS AT OTHER L.OCATIONSANO TiMes.
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File No. D-4230-H01
November 11, 1988
l: ... i;:zW w-w Q ...
> § o i!: ::;
·BORnrG 15
ELEVATION,-__ 3_0_5 ___ DATE DRILLED,_~11o.l0ol,.J/:.:..ol ... 2u./~8~8 __
EQUIPMENT 30" .Rotary Buq.ket
I MATERIAL DESCRIPTION O~---~~~.,~ .. ~.~---+---------------------------------------~----+---~---
2 -::.~:·Z': );~'" CL TOP~~;~, slightly moist, brown, Sandy CLAY i-
~ - . ' ... ' . . with SILT fractures l-............. :
-
I-10-
-
I-].2-
.
I-14·
.
)'
I-16 -B1S";2 l/
-t
CL-MI.
\
DELMAR FORMATION
Hard, moist, light olive, Silty CLAYSTONE
to very Clayey SILTSTONE
~---Bedding nearly horizontal
1---
MI.'
__ Bedding N60H, 5SW
Hard, moist, light orange/olive-mottled,
Clayey SILTSTONE; some very fine SAND
B15-3 1/
I-18 -f/ . ~/ r--Bedding nearly ~O~izohta1
~~~-r-+-----~----.:..
-20-
.--
f-22-
-
l(;:
I I
CL :: Hal;d, moist, olive-mottled, Silty CLAYSTONE;
yellow-white gypsum stringers; slight to
moderate fracturing
r-Few steep hematite-fi1.1ed fr.actures;
~--fi N40E, 8SSE' (joints) ~~
II r-Cemented zone (calcium carbonate cement
-~I I
.... 26-~I" 1-. I!
B1S-4 ~I!xrl' I-':":>~r Remolded CLAY seam 1/.8-1/4" thick; N60E
about 1211.' fossil shells)
_ fI v...-2 0 S' I I I I-28 -1.o.I<1.:...!...1 .... 1.+-+ ___ +'--___________________________ _
_ B1S-5 WI I I SM-De1;1.se, moist, light olive-tim Silty'
SC fine' to medium. SANDSTONE;. some CLAY
-30-I I
I I V
l-
I-
3/1211 107.9 18.3
I-
....
~
~
3/1211 08.4 19.5
I-
l-
i-
--
-
l-
I-
I-
...
BULK AMl'Ll
2/0" (No s mp1e: ...
...
_ 3 J..lS.2 13.8
Figure A-23, Log of Test Boring 15 (Boring 15 Continued next page) ~
SAMPLE SYMBOLS o _ SAMPL1NG UNSUCCESSFUL
~ _ OISTURBEO OR BAO SAMPLe
IJ _STANDARD PENETRATION TEST
iJ _ CHUNK SAMPL·e
I __ ORIVE SAMPLe (UNDISTURBeD)
~ _ WATeR TABLe OR SeePAGe
NOTE: THe LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLies ONL Y ATTHe SPECIFIC BORING ORTAENCH LOCATION AND
ATTHE OATe INOICATeD.ITIS NOT WARRANTeD TO BE REPREseNTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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File No. D-4230-HOI
November 11, 1988
:r ... 'S:zw w-w Q ....
... 32
... ...
-34 ...
...
;.. 36 -
-. -
-38 -
... ... B15-6
-40' -B 15-7 -' ...
-42 ...
... ...
I-44 -
i-46
-
r:: BORING 15 (Continued) >-w en C!J ~ ~iii 0 ~ ' '6 -'u 10/12/88 z Uuj ELEVATION DATE DRILLED i: ... :> =:; 0 0-:; r:: en 30'~ Rotary Bucket 0 EQUIPMENT
MATERIAL DESCRIPTION
v; : i
f:~:~~ CL-Hard, moist, olive-brown mottled Silty, Sandy r~ _ID.. -~YS:lded CLAY seam 1/8-1/4" thick;
"'. :: ·.:I:"'::'''-i--'-~ 3°SW; throughgoing gypsum
I I ~ CL ~d, moist, medium-olive, silty CLAYSTONE; ~ , abundant gypsum seams; random fracturing X ----\
H ~ L_
v;::
Remoded CLAY' seam 1/8-3/411 thick; N10W,
5°SW, throughgoing, with large crystals
of gypsum within gouge
l%
Ily
SW
CL-
CE
Dense, moist, light orange-tan, medium
SANDSTONE
~contact nearly horizontal; ~harp
,depositional .
----,,...
... 48' -B ~I _ _ 15-8 I I ~
Hard, moist, dark olive-brown mottled 'with
yellow, Silty CLAYSTONE; gypsum seams, random
fracturing; fossiliferous and carbonaceous
l-
I-
I-
~
l-
I-
I-
----
-
.-
I-
~
i""
...
B1S-9 ~ I-50 -I 1----rL--I' -t: I--I y/ Becomes very dark olive/black and -1 YL_ y carbonaceous, seepages of slight to moderate l-
I-52 -::.r:'I:·.j. '+. ::!:-I---'-~ flow
seams 1/4.-1/2"; N20W,5°SW i"" -':(r;:,:', \ IRemolded CLAY
-54 -::1::1'::1 :': ~t contact, ',l:I"::'I'~: -
I-56 •
-
~ 58 --\
-60 -l--Cemented zone; CaC03+
... -BORING TER."'1INATED AT 59 FEET (REFUS~)
Figure A-24, Lpg of Test Boring 15
I-..
...
..
-..
-
• ZW' Qut ~z ..... e:g~ w-o zen .....
W WIIl <l.r::
-
5
4
~ w# ~..: It,..: ::lz Wej ... w Q~ !a~ >-0 0 r:: ::u Q
-
106.6 20.5
!BULK • AMPLE
92.0 29.1
BULK '~ AMPLE
SAMPLE SYMBOLS 0_ SAMPl.ING UNSUCCesSFUl. .
181_ OISTURBEO OR BAG SAMPl.E
IJ _ STANOARO PENETRATION TEST
il_ CHUNK SAMPl.·E
• __ CRIVE SAM,PI.E (UNCISTURBEC)
~ _ WATER TAB!:.E OR SEEPAGE
NOTE: THE I.oa OF SUBSURFACE CONDITIONS SHOWN HEREON APPl.IES ONI. Y ATTHE SPECIFIC BORING OR TRENCH 1.0CATION ANO
ATTHEOATEINDICATEO.ITISNOTWARRANTEOTOBEREPRESENTATIVEOFSUBSURF.ACECONOITIONSATOTHER l.OCAT10NSANO TIMES.
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File No. D-4230-H01
November 11, 1988
d
~zti z
LII ~ LII-L11 ... o ... :l: ~
a: BORING 16 >-~ III C!l !1;;-9 ~ , d~ 300 10/13/88 0 z ELEVATION DATE DRILLED IE :;) =::l !f-0-::l III EQUI~MENT E-lOO, 30" Rotary Bucket C!l
, ,
-0 v> '.<:', f-----h TOPSOIL
,"">..:.,::....;.:""':.i:""":':':'-!,:j----,\--C_L_-h\ hard, humid, brown, Sandy CLAY, highly , :':,':J' .. :,::-: I fractured .' " .. ~:I:~'i'::':'f. '--""'---L_ becomes very stiff and slightly moist
MATERIAL DESCRIPTION
--
-2-
- -
ZLII ~ will Qut:: . i~U5 ~..: a:,.: i:!z tu!!l~ LIIcJ ~~ Oa;
ffi81s ->-0 0 a: ;iu ... a: 0
---,
.1:,. •• ?c.. .--':~'I~~~ -~ I~~~~~~~~~~~~~~~~~~~~~~~~~~_
':1',:"':1:: ---~~ELMAR FORMATION
-4-
':r:':-}:: \1 Ve~y deJ;l,se, humid, light gray-blue, very
.'1"1;": 1\ fine SANDSTONE; iron-stained, carbonate,
". ,.', \Lw~athering at top , '~I::t.<r,: I -shells
','1:',,',:: ." L bedding N20WI0S :'.:1::/':: '[:>-\
" ',' .:,,' '--strongly ir~n-stained
Silty --
-6-
--
-8-
-,:r .. I .. ':
I-10 -B16-1 .iir-:,:,""",I:,+,t~:'i r-t~--i-~--~~--~~--~---------.Vl...' , ML hard, slightly moist, light grey-blue, -
-12-
--
-14 -
I--
I-16 -
I---18 -
--
-20 -
I--
I-22 -
I--
... 24 ----26 ---
I-2& -... -
B16-2
/: '. '. ,'. '__ Clayey SILSTONE, iron-stained, fissile, .:. ::<':;,Y. _-->n, hematite filled joint N4SE82E " ;v' .. ' \
~' L layer of stiff, moist, orange Sandy SILTY,
friable, fossiliterous; N20W10S
bottom contact
iron-stained, Sandy with ~ossils
thinly bedded, dipping appro~imately 100 S
t" ...... _>---iron-stained, lenses of friable, organic
rich SIL':j: with gypsum stringe,rs ..
-
-
l-
I-
I-
I-PUSH
_7 II' 93.4
1 --
~
--
r-IO ~18.0 l-
I-
0-
---
:-
l-
I-
Figure A-25, Log of Test Boring 16 , (Boring 16 continued ne~t page)
29~5
14.0
SAMPLE SYMBOLS 0_ SAMPl.lNG UNSUCCESSFUl. '
~ _ OISTURBEO OR BAG SAMPl.E
IJ_STANDARD F'ENETRATION TEST.
iJ _ CHUNK SAMPl.,e
• __ CRlve SAMF'l.E (UNDISTURBED)
~ _ WATeR TABl.'E OR SeEPAGe
NOTE: THE LOG OF SUBSURFACECON-DfTIONS SHOWN HEREON APF'l.IES ONL Y ATTHESPECIFICBORING OR TRENCH LOCATION AND
ATTHE DATE INDICATED: ITIS NOT WARRANTED TO BE REPReSENTATIVE OF SUBSURFACE CONDITIONS AT OTHER l.OCATIONSAND TIMes.
.-----------------------------------------------------------------------------------------
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File No. D-4230-R01
November 11~ 1988
c:
d > w
z Cl ;c -... w 0 ;: fu~!tI .... 0 .... 0 lI. z o ... :; i: :::> < ::; ~ en Cl
en BORING 16 (Continued)
~iil' ....t,j iO/13/88 Uoj ELEVATION DATE DRILLED ~~ 0-en EQUIPMENT
MATERIAL DESCRIPTION ML
= 30, _ B16-3 I"'v{ ~,.::. \\ r scoured contact, generally horizontal
B16-4 V! I 1-. CL \ LL-
-32 -11:y' 1-:>1\ hard, slight moist to moist, light blue-grey
= 34 = ~: c-___ Il.:.ndy
SILSTONE .
- -I i V c----\\~ very stiff, moist, reddish-brown, Silty v.: ~ I I CLAYS TONE
-36 -Ij{' 1'1 -'
'I I'L - -B16-SI I II many non-continuous remolded planes with
-'38 -:·l:I";": ~ S~1 11\\ g~sum, general orient'ation NSW7S
B16-6 X·'",:,:, I!\\
-, . =::'1::'::':: II'
-40 ':';;""': --=-il\~ -conti.nuous medium stiff, very moist, gr.ey
remolded CLAY N30W5S
- -III r-42 _ IL-
I
'r--1\
beciJmes:,:·or.gap,ic .. rich, gYP$UIU and
sulfur-rich
-
,~ -
--- ---
~ -
~ -
I--
--
-' -
--
-
~ ------
\':-. ---------------:----
I very dense, very moist, grey Silty fine to
I medium SANDSTONE, slight seepage I
I I L_ very strong cemented
BORING TEIDfINATED AT 40 FEET (REFUSAL)
Figure A-26, Log of Test Boring 16
-9
-BULK SAMPLl
-
--
--15 117 .8. 15.1-
I-
'r-BULK. SAMPLI
r-
r-
r-...
--
-
I-
r-
r-
~
~
--
;..
-
r-
~
r-
SAM PL'E SYM SOLS o _ SAMPLING UNSUCCESSFUL
~,_ DISTURBED OR BAG SAMPloE
.IJ_STANOARD PENETRATION TEST
iI_ CHUNK SAMPr.:E
.• __ DRive SAMPloE (UNDISTURBEDI
~ _ WATER TABloE OR SeEPAGE
NOTE: THE looa OF SUBSURF'ACE CONDITIONS SHOWN HEREON APPlolESONLY ATTHESPECIFIC BORING ORTRENCH loOCATIONAND
ATTHE DATE INDICATED. IT IS NOTWARRANTEDTO BE REPREseNTATIvE OF' SUBSURFACE CONDITIONSATOTHER loOCATIONSAND TIMES.
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File No. D-4230-H01
November 11 1988 ,
, " c: BORING 17 0 >-~ U'J z'" ?: z Cl ~cz Qut:: wJl ~ztu 0 ~ w ..... .0 (,)0 260 10/13/88 ~~u; ~..: c:'" ..... ELEVATION ::>z w-w 11.' 0 z ..... <4 DATE D,RILLED wt,j ~~ . o ... :li ;: ::> -::> .... CIl!= Cc.: ~ 0--w-o °a .. ::; U'J E-lOO. 30" Rotary Bucket ZCll ..... >-en Cl EQUIPMENT ~~aJ a: :ilrJ c
MATERIAL DESORIPTION
~ 0 /,;':, CL TOPSOIL
I--:::,:j Soft ,. dry, dark brown Sandy CLAY -
• ... 0. r 2 -: ........ "0 -;(i:·i:' \ I--~ . . .. -. DELMAR FORMA';rION
I-4 -,:(-'.:,:: CL Hard,. moist, light olive-brown mottled -
.:: "I:: Sandy-Silty CLAYSTONE; abundant I
I--gypsum I-~17-1 !Zt 6 111.2 17.1
I-6 -:,' I: 1" t I-
::l':I:':( I--l-"L>.( : ,'",': -: I~contact bedding N10E10mf i-8 -'0' .. l-:'~"VF -I>'~ ': .' .: SM-, I-~ ':'1:' r-: ~~ : .... '/.:. sc Dense, moist, light :tan-olive Silty-Clayey
I-10 -';;;1""': coarse SANDSTONE I-
--~.; f ":'1:':'1 ~.~ I-
,.t' ": ,: ': :,),{:: -12 -....... ,." I-V'" 0" • '", CL Hard, moist, light olive Sandy CLAYSTONE; --s0 ~. · ' ....... highly fractured, multiple oriented
-14 -
. ili¥1
slickensided surfaces -
- -
-I 1 ., •
" ....... II .... '.
-16 -• _. ,0. -' ... ' ..
0 0 .... ' " ..
I--. ' .... , ..... -::( -:j,:'V' Dense, moist, light tan-orange Silty fine
-18 -~.; :', :/. :,' SC-'medium SANDSTONE -1817-2 ~~,)"', SM to 9 124.5 11.9
I--1817-3 :':I:'~ ,;:~ I-
, (,,{,
too 20 -,',l-i.~ ,', r--: :1:':-(":': SM Dense, moist, light tan-orange Silty fine -
~ -••• 1,·01·0 medium SANDSTONE I-",(,,:,,:' to
I-22 -., 0" 0" I-:~{:.~ t:~i ,::
I--:,: t:,: -{i ~; ~
.~ 24 -::((:(: I-
--:: ::",": .:--.-,':-1 .. 1: '
-26 -:\': !':,'i,::: ~
I--,:: i:':'I:~'I:': ~
I-28 -::1:\\',' 1---1---bedding N40W, 9 oNE i-
""., '"0 '," --
~ -;,:i::' i:~ j:': I-
, ••••• , •• "0
-Figure A-27, Log of Test Bori~g 17 BORING CONTINUED NEXT PAGE
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
t8l_ DISTURBED OR BAG SAMPLE
IJ_STANOARO PENeTRATION TEST
t;I_CHUNK SAMPL'E
• _ DRIVE SAMPLE (UNOISTURBED)
~ __ WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHESPECIFICBORING O~TRENCH LOCATION AND
A TTH E DATE INDICATED,ITIS NOTWARRAN'I'ED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT O:rH.ER LOCATIONS AND TI MES.
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File No. D-4230-HOI
November 11, 1988
a:
d >-w 0
:;: 0 l( ~Oi :I: 0 3: li:ztii III ... -'0 -' 0 C Cal UJ-w Co. 1: z -==1 C ... ~ ::> ... If 0-~ ::; .(1)
0
30 I--':C' ..... . : :.1::\:;
f--":1::1:':\:': 1----
32 -." '01' ,. 8M f-:·r; I:: \:: · ..
I--··:(r·:\:< 1',
"-"'0'·0 ','
':'> I-34 -:.r ,\,·1-: ... , ",./
I--::(r/: Iy ..,./
?:( CL ." • '0
I-36 -... , '.'
0.° • .' · , .. -
I--R< ----
I-38 •
I--0' •••• . : .. " ......
i-40 -· I···· .. ·
BORING 17 (CONTINUED) Bill . .. ~. wi _uti: ~....: a:,.: ~z ..... ELEVATION DATE DRILLED ~~~ ::>z UJcj "'w Ceo; ~~ ~1ii9 >-0 0 EQUIPMENT UJll!Dl a: ~t) £>.,. Q
MATERIAL DESCRIPTION
t---becomes moist to w.et l-
.. l-
I-
--strong seepage l-
f-,\[~~rregUlar contact;. remolded CLAY seam,
E-W, SON; throughgoing I-.
I-
\ Hard,. moist-wet, medium to dark-olive,
\ Sandy CLAYSTONE ~
\ I-\ \ L_ l-~ remolded CLAY 1/8-1/4" thick, N4SE, B17-4 "'Si seam BULK ~AMPL] i-12°8E -.; · \." ' .. .. ' ..
I-42 ',',', ,,',
BORING TERMINATED AT 42 FEET ... -
i--
i--
i--
1-' -..
l-.
l-.'
i----' -'
I--
I--
I--
I--
I--
I-.
I--
I--
Figure A-2~, Log of Test Boring 17
SAMPLE SYMBOLS o _ SAMPI.ING UNSUCCESSFUL.
t8l_ DISTURBED OR BAG SAMPL.e
[] ~ STANOARD PENETRATION TEST
iiJ_ CHUNK SAMPl.oE .
f-
'-
l-
l-
f-
1--.
I--
l-
I-
l-
l-
...
...
i-
l-
l-
l-
I-
• __ DRIve SAMPL.E (UNDISTURBeo; * __ WATER TA9l.e OR SeePAGe
NOTE: THE l.OG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONl. Y ATTHESPECIFICBORING OR TRENCH L.OCATION ANO
ATTHE DATE INDICATED.ITIS NOTWARRANTEDTO 9E REPRESENTATIVE OF SUBSURFACE CONOltlONSAT OTHER L.OCATIONSAND TIMES.
1
File No. D-4230-HOl I November 11, 1988
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l: ... 6:zw w-w Q ...
1-' 0
I--
I-2 -
~ -
~4 -
~ -
~ 6 -
~ -
~8 -
I--
I-10 -
.. l-...
i-12 -
I--
I--
~ -
~ ..
I--
I--
i--
I-:'
I--
~ -
I--
~ ·
I--
i-·
I--
I-·
I--
a:
d >-w
CJ !< Z 0 ~ w ..J -' 0 z .. :::; ~ ;:, ~ < :l Ul Cl
VT:r: ::l'~,:]' .' : .. "," ., ~ ':1.:,1',: ','.
','i"j:-r",
:':1::'1'::1:'-'
::':'1:/ 0, •• I,
: ,1':,!!, :1~',: ." .... -" ' "fl' '.1, ' ..
• 0" f ...... ':1<1",1: '
.: I>'I:'{
I" ", ....
',~,,((:
': ,;: (:1':
:'1: :1::':: ,', : ..... ,
17.. r:','" './.
.,
en en_
<<Il ..Jcj uu:l =::; 0-en
CL
SM.
SM
1---
1.,;1
TRENCH. 1
ELEVATION '110 DATE DRILLED 10/10/88
EQUIPMENT JD§55 24" Track Backhoe
MATERIAL DESCRIPTION
COLLUVIUM
Hard, slightly moist, dark gray,,. Silty ...
1\ CLAY, with fine sand, highly fractured
DELMAR FORMATION
Dense, humid, light olive, Silty fine
SANDSTONE, highly fractured, carbonate
in joints
L-
Very dense, humid, light olive, Silty. fine
SANDSTONE, with areas of fine to coarse
sand, iron staining ,
~'--becomes tan, fine to medium coarse
~\
WEATHERED SANTIAGO PEAK
Hard~ slightly moist, olive and broWn;
.Sandy CLAY with unweathered chunks of
SANTIAGO PEAK, some shiny parting surfaces
TRENCH TERMINATED AT 11.0 FEET
Figure A-29 Log of Test Trench 1
Zw ~ Qut i!iil .~~ wcJ ~!il~ QIl: ZUl..J .> ~~al a: c
l-
I--
I-
~
~
I-
~
~
I-
I I-
I--
I-
I-
~
l-
i-
l-
l-
l-
I-
l-
l-
l-
l-
l-
I-
I SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
t8l_ DISTURBED OR BAG SAMPLE
IJ_STANDARD PENETRATION TEST
i;J _ CHUNK SAMPL:E
• _ CRIVE SAMPLE (UNPISTURBEO;
~ __ WATER TABLE OR SEEPAGE
I NOTE; THE 1.00 OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORINO ORTRENCH 1.0CATION·AND
ATTHE OATE INDICATED.ITIS NOTWARRANTEO TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONSp,TOTHER LOCATIONS AND TI MES.
wi a:,.: ;:,z "'w !ilz °0 :::;(J
I
I File No. D-4230-HOI
November 11, 1988
It TRENCH 2 d >-'" VI z", Cl < VI_ ~ wil' I z <ell ~~~ :t l-W 0 ;: "'u ~u: It.,: li:z'" ... 0 275 10/10/88 -«0 -' 0 urn ELEVATION DATE DRILLED ::lz w-'" Q. z ~!ii~ "'u ~~ o u. ::; i: ::> ::!::; Co,; ~ 0-Oz ~ ~ VI JD555 2411 Track Backhoe zen ... >-
Cl EQUIPMENT wUJec a: =-8 a. a: c -I ~ 0 MATERIAL DESCRIPTION
V· -., ..... COLLUVIUM"
~ -'}k CL Hard, dam)?, dark bro\Y!l, Sandy CLAY and P-
I " ......
~ 2 .. , ," .. ' Santiago Peak boulders I--~: :.:.: ~ .:.
0"' I'V··, t;L ~ -''('''0 ....... , wEATHERED SANTIAGO PEAK I ~ 4 -~/~ o. 1\ Very'firm, moist, brown; Sandy CLAY, with I-
~ --"4// GC pieces of Santiago Peak l-
I I-6 -' ~
L/O 0 SANTIAGO PEAK
P--,. 0 " Excavates to very dense; damp, l-
I 0/ orange-tan,
I p-8. -Clayey COBBLES with some samd-and boulders. I-
~ -, Santiago Peak jointed with some surfaces p-dipping out of slope
I--l-
I ~ -I-
"" I--
I TRENCH TEru1INATED AT 7.5 FEET I-~ -
I--l-
I p--'I-
1-0 TRENCH 3 EJ,ev. 245'
-I 1;(. ,,' : ' . , " '. ,;2 CL COLLUVIUM .. ' .' . l-f--." .. ' .. .-Z·,· ~ Hard, humid, gray, Sandy CLAY with some I.' .. "
i-2 -....... ', ..... CL ~ntiagO Peak cobbles -l-
I f--::' :.: :.:?:
"'" y ,/ 1\ Very stiff, very moist, dark brown, Sandy ,... 4 -~'/o. GC f-;I 0 CLAY \vith Santiago Peak cobbles ., An/ some
I -I-
- 6 -
--SANTIAGO PEAK
I i--Excavates to very dense, moist, green and -
I--orange; Clayey COBBLES -
p--l-I. ~ -
--TRENCH TEB}UNATED -AT 5. D FEET l-
I ~ -l-
I
I Figure A-3D Log of Test Trenches 2 and 3
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL IJ-.STANDARD PENETRATION TEST 1_ CRIVE SAMPLE (UNDISTURBeC)
~ _ DISTURBEO OR BAG SAMPLe IW _ CHUNK SAMPL-E f --WATeR TABLe OR SeePAGe-
I NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLies ONLY ATTHESPECIFIC BORING ORTReNCH lOCATION AND
ATTHE OATE INOICATEO_ITIS NOTWARRANTEO TO BE REPRESENTATIVE OF SUBSURFAce CONOITIONSATOTHER LOCATIONSANO TIMES.
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File No. D-4230-HOl
November 11. 1988
TRENCH 4 o z w • ...J II. ~ ELEVATIONI_~2=LO-=--___ DATE. D RILLED. __ .=1O=.I...;:1='O ...... f=8 8,,---' _
!-0
r--
r-4 _
r-•
r-6
r--
-
_~ 0
I--
r-2 -
~ -
~
ML
SM
EQUIPMENT JD555 2411 Track Backhoe
MATERIAL DESCRIPTION
DELMAR FORHATION
Very f~rm, slightly moist, light gray-
green, Clayey SILTSTONE, fr~ctured
~~-----------------------Very dense, humid, light gray-green, Silty
fine SANDSTONE iwht few fine to coarse
patches. Iron stained, with clay !=Llong.
some joints
1\ .L-____________________________________ +-__ -+ __ ~--~
TRENCH TERMINATED AT 6.0 FEET
TRENCH 5 Elev. 265
I'.:.;";: ."<:' f--.-h COLLUVIUM v.:." . .,. :: ~.:./.'. CL 1\ Very firm. slightly moist, reddish brown,
1'-=-:' :.",:4-;-;..:..:, ••.• ;,44.-1---4] Sandy CLAY
10' '.': Lbecomes very stiff and moist, with Santiago
r-
l-
I-
.1-
I-I-4 -
~ . 0;~~S;: CL Peak cobbles ." .. " .. ~:~:~:·~:~·"~~~,~+--._~1L------_--------~----------------------r----i---i----
I I Y CL \ WEATHERED SANTIAGO PEAK .
: 8 -1-("':"I"~/I-J~II/~+--+--ML-'--h\Lery Sti~f' moist, olive, Sandy CLAY
_ _+-_-4--:"....L.::.J.-I-+-__ ";'\ Very firm, mois t-,-O-l-i"":'v-e---g"-r-e-e-n-a-n·-d-o-r-a-ng.e,
Silty CLAY iwth little Santiago Peak
: ~ Lb_b_l_e ______________ ~ ___ _
r-6 -~
-
-
-
l-
I-
Very firm. moist, light greenish-gray. ~ -. Clayey SILT with little fine s~d, cobbles
of Santiago Peak Volcanics
r--
-TRENCH TERMINATED AT 8.0 FEET -r-
I
Figure A-31 L.og of Test Trenches 4 and 5
SAM PLE SYM SOLS o _ SAMPL.ING UNSUCCESSFUL.
18l._ OISTURBeo OR BAG SAMPL.E
IJ _ STANOARO PE~ETAATION TEST
IW _ CHUNK SAMPL.-E
• _ CRIVE SAMPLE nJNOISTURBEO)
f --WATER TABL.E OR SEEPAGE
NOTE; THE LOG OF SU8SURFACECONOITIONSSHOWN HEREON APPI.IES ONLY ATTHE speCIFIC BORING OR TRENCH 1.0CATION ANO
AT TH J! DATE INDICATED.ITIS NOTWARRANTEOT.O BE REPRESENTATIVE OFSUBSURFAce CONDITIONSATOTH!=R LOCATIONS ANO TIMES.
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. File No. D-4230-HOI
November ii, 1988
~ 0
I--
r-2 -
r--
r-4 -T6-1
I--
I-6 -
~ -
I-8 -
r--
~'110 -
--...
-12."---'.
I-14 - .
I--
r-16 -
i--
. :'Z··:.'· :: . .. '. to ••• ...... .. '. to·.
GC-SC
CL
CL
ML
CL
NL
TRENCH 6
ELEVATION __ 13_0 ____ 0ATE ORILLEO. __ 1_O_1 .,-ll_I_8_8 __
EQUIPMENT JD555 24" Track Backhoe
. . MATER~AL OESCRIPTION
FILL
Loose, damp, orange-tan, Clayey SAND and
BOULDERS
Stiff, moist, olive-green, Silty CLAY
with small c~unks of unweathered Delmar
Stiff, moist, orange-brown, Sandy CLAY with
some GRAVEL, chunks of Delmar & Eocene
materials
~~----------------------------------Stiff, moist, light olive-green, Clayey
SILT with little SAND, GRAVEL
Stiff, moist, grey & green, Sandy CLAY
i\~ __________________ . ______________ . ____ __
Stiff.to very stiff, moist, light olive-
green with some grey, very Clayey SILT
with little SAND and GRAVEL
-
-
-
I-
l-
I-
i-
l-
I-
-
'""
-
. .;.
l-
I-
0-
--:t1J
~ 18 -1-----+-"'--+-+--""'"1 \ -
... --
-20 -\
TRENCH TERMINATED AT 18 FEET -l-
-i-
-o.
-..
-------l-
I--I-
I--I-
llO.7 16.3
-
~---~---~~---~~---~------~-----------------------------------------~------~---~---, Figure-A-32, Log of Test Tre~ch 6
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL
~ _ OISTURBED OR BAG SAMPLE
IJ_STANOARD PENETRATION TEST
iI_ CHUNK SAMPI.-E
1_ DRIVE SAMPLE (UNDISTURBED)
f .,:"-WATER TABLE OR SeEPAGE
NOTE; THe LOG OF SUBSURFACE CONDITIONS SHOWN HeReON APPLIES ONLY ATTHe SPECIFIC BORING OR TReNCH LOCATION AND
ATTHe OATe INDICATED.ITIS NOTWARRANTEoro BE REPRESENTATlveOF SUBSURFAce CONDITIONS AT OTHER LOCATIONS AND TIMES. ----
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File No. D-4230-HOI
Nov~mb~r 11, 1988
a: >-UJ TRENCH 7 . III d Z t!I \;( ~iii ~UJ .•. ~. , UJlf!
:l: ~ .0 ;: _ut;:: ~u: Ii:zUJ UJ ..J 0 uU 125 10/ll/88 !<z, ..J w-UJ '" 0 z ..J"l ELEVATION DATE DRILLED g:~~ :l: :> Wcj Q ... :lO' -:::l < !:: ~ 0-JD555 24" ""-0 Qa;
<Il ..J III Track Backhoe zen..J >-
t!I EQUIPMENT .... UJIIl a: !loa: Q
0 , MATERIAL DESCRIPTION. -V'" ..
.' 4 ....... : ' CL FILL --· ...... Very firm hard, slightly moist; ~
tA to tan, very · .. '0 "0 .. -2 -.. < ..... "' .... :: Sandy CLAY with pieces of wire, plastic bags, -
"0 .... ' •• concrete
":' . '.:':.) ~
-4-• ...... "0"0 • ~ :~j ". ' I 1 CL Medium stiff, very moist, light green, Silty
t-~:.'. :::. GC-SC 1\ CLAY with little GRAVEl;. , . =BAND' ~'
6 -.. 00, ';(" ~ P-........ , ,.,. '/' '. L o.·/-,Q: -
I--~.r-:~ ..... ~
' .• '''(20. Dense, slightly moist, brown, Clayey SAND , .... :.-" I-8 -.. " ...... and GRAVEL ...
~l GC-CL
I--I l~A \ i-
~ 10 .-.~ Very stiff, moist, light green.;with,:bro'Wn, ~ Silty CLAY and GRAVEL
I--i-
-" · I I V ~ 12 . '. %8" -:'.1" .J:: Very stiff, moist, light green, .Silty CLAY, ---\'t"r' highly fractured with SAND -.~ ..
~ 14 • : "I'··~' .' --
--· ':';:(1:':' -:::~ ,...------Becomes blue-green and with GRAVEL
-16 -:-~:' :, '" -
q •• J: .... :.:-r¢ -. TRENCH TEBMINATED AT 17 FEET
-18 -I-
~ -l-
I-20 -I-
-
!--1-.
I--l-
I--I-
P-I-
~ -l-
i--~
!"" -i-
--I-
--i-
Figure A-33, Log of Test Trench 7
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
~ _ DISTURBED OR SAG SAMPLE
IJ _ ST ANOARD PENETRATION TEST
IiJ _ CHUNK SAMF.'~e
.• _ DRive SAMPLE (UNOISTUR~eD)
~ __ .WATER TABLE OR SeEPAGE
NOTE; THE LOG OF' SUBSURFACECOND/TIONS SHOWN HEREON APPL/ES ONLY ATTHE speC/FICSOR/NO OR TReNCH LOCATIONANO ATTHeDATeINDICATeD.ITISNOTWARRANTEDToseRePReSENTATIVE~FSUSSURF'ACECONDITIONSATOTHER LOCATIONS AND TIMES.
a:,.: :::lz .... UJ !a~ 00 :lOu.
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File NO. D-4230-HOl
November 11, 1988
a:
c:i >-I!! Z Cl ~ :x: 0
l;:zlU w ..J C ..J 0 Z w-W II. l: C u.. ::!i ::;)
« t: !f rIl ..J Cl
0 I-~"" : ·'0:"
I--~ I-2 -• ;0, •.•• ,':
.:1'. :: •••••
I--~? .. : .. '.,>:/
.:-4,-:-' •• ,%', . "y •• • 'J" , ' ~ .' '. I--TS-1 •. :.:.:'.),
I-6 -' • 'j('" ',7, " • T8-2 'Xt;.: :.' '. J;r ...... I--.... -... " :.\ :::~~
l-S -:.~: 1::: .,1, ._,
I--./. ....... ~' ...... ~ • o •• ! I "'
I-10 -',: :·:lyt:I;.~.
V. I--..t' V-I-12 -
.-I-~ I-14 -
I--
I-16 -
I--
I-18 -
I--
I-20 -
I--
I--
I--
I--
I--
I--
I--
I--
I--
TRENCH 8 rIl ~o; .... u 135 10/n/88 ~<4 ELEVATION DATE DRILLED -::l 0-rIl JD555 24" Track Backhoe EQUIPMENT
MATERIAL DESCRIPTION
GC-C.L· FILL
Hard, damp, or'a~ge-brown, Sandy CLAY and
GRAVEL
SC, Medium dense, moist, tan, very Clayey, fine
to medium SAND with some GRAVEL, lenS'es of
black organic material
0
1-----Becomes grey-blt,le
SM Medium dense., moist, yellow-tan, Silty,
CL 1\
fine to medium SAND::with some SILT, lenses
of black organic material
L-
Stiff, very moist, grey, Gravelly CLAY
with lenses of black organic material
r------~
I \ I :\L_ Becomes grey-blue
TRENCH TERMINATED AT 16~-.FEET
0
I Figure A-34; Log of Test Trench 8 .
Zw ~ g~r;: wli'
~u: a: ..... ~,5Cit ::lz
... tIll: WU' ~w c~ w-o i5~ zrll..J >-::!is ~~al a: c
l-
l-
l-
l-
l-
I-111.0 15.0
l-BULK SAMPLl
~
I-,-
l-
I-
l-
.1-
l-
"1-
l-
~ " .
l-
I-
l-
l-
l-
l-
l-
l-
l-
l-
I-
SAMPLE SYMBOLS o _ SAMPL!NG UNSUCCESSFUL .
t8'l_ OISTURBEO OR BAG SAMPLE
IJ_STANOARO PENETRATION TEST
iI....: CHUNK SAMPL-E
• _ ORIVE SAMPLE (UNOISTURBEO)
f -. WATER Tf,BI.E OR SeEPAGE
NOTe: THE LOG OF SUBSURFACECONOITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH l.OCATION ANO
ATTHE OATE INOICATEO, ITIS NOT WARRANT EO TO BE REPRESENTATIVE OF SUBSURFACECONOITIONSATOTHERLOCATIONSANOTIME5.
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I
File NO. D-4230-HOl
November 11, 1988
d Z
TRENCH 9
:l: I-w b:zw ....I w-w Q. .Q .... :::;
§
o IE ::;
ELEVATION ___ 1_3_5 ___ DATE DRILLED_l_O_I_1_1/_8_8 __
< III
~ 0
--
-2 -
I--
EQUIPMENT JD555 2411 Track ~ackhoe
MATERIAL DESCRIPTION
.SC FILL
Loose, humid, tan, Clayey SAND with GRAVEL i-
i-
i-
I-4 -Very firm, moist, tan and. bl~e~green, Clayey I-
SILT with chunks of CLAY, SAND, organic
I-
I-6
I-
.1-8
I-
1-10
I-.;
1-12
...
1-14
I-
~ 16
I-
-18
-
-
--
-. --
":
-
-.
-
-
! I Y
IYI
If..~: .:~:.:. v.o·· .... ; : .. :":. ';;,:. "D"· ,% •••• ' .~ '.;;::-: .. 1:/:·.·0 k"" qC •• ~
CL
SC
material
Stiff, very moist, blue-green and black,
Silty CLAY .I\~----__ -------------.--------------------Very firm, moist, blue-green, Clayey SAND
with pebbles,.arid chunks of organic material
:Q',"";':::'/ I----tl. . :o;,/:: .";': \ ~--~~~~~----~\ ~L_ Becomes more Sandy -
-TRENCH TERMINATED AT 16~ FEET -
.. 20~ .....
--
I--
I--.... ---
--
I--
I--
I--
Figure A-35, Log of Test Trench 9
l-
I-
I-
l-
I-
'1-
l-
I-
l-
I-
-
f-' .
SAMPLE SYMBOLS 0_ SAMPI.ING UNSUCCESSFUl.
~ _ DISTURBED OR B.'G SAMPl.E
. (]_ STANDARD PENETRATION TEST
IW_CHUNK SAMPt.:E
• _ CRlve SAMPI.E·(UNOISTURBEO)
f -WATER TABl.E OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONl. Y ATTH E SPECIFIC aORING 'ORTRENCH 1.0CATION AND
ATTHEOATEINDICATEO. ITIS NOT WARRANTED TO aEREPRESENTATIVEO FsuaStJRFACECONDITION~~TotHERLOCATlONSANOnMEs.
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File No. D-4230-HOI
November 11, 1988
0
:l: ... Z w li:zw -' w-W· .. Q ... ~ <C. <I)
I-0
I--
I-2 -
l-.
I-4 -'
I--,
I-6 -
I--
I-8 -
I--
I-10 -
I--....
I-12 -
I--
I-14 -
I--
I-16
v.::. :'. :: .. ....... -.. :;:
P--
P--
I--
I--
P--
I--
I--
I--
I--
I----
I--... -
CL
TRENCH 10
ELEVATION
EQUIPMENT
175 D ATE OR ILLED,_--=I~O'..L/"",rl.LQ ~f8.!.18.!.-_
JD555 24" Track Backhoe
MATERIAL DESCRlPTION
ALLUVIUM
Loose, moist, dark brown, Silty fine
SAND, roots, voids
-becomes wet
--strong seepage
Soft, saturated, medium brown, Sandy
II CLAY ,
TRENCH TERMINATED. AT 16.0 FEET
-
Figure A-36, Log of Test Trench 10 .
P-
P-
P-
I-.
l-
I-
P-
P-
I""
l-
I-
l-
I-
,P-
P-
I-
l-
I-
t-
l-
I-
l-
I-
P-
I-
P-
I-
I-
SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL
(8l-DISTURSEC OR SAG SAMPLe •
IJ _STANDARC PENETRATION TEST
IiiJ _ CHUNK SA~PI.-e
1_ DRIVE SAMPLe (UNDISTURBED)
~ __ WATER TABLE OR SEEPAGE
NOTE: THE LOG OFSUBSURFACECONOITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFlcaOfilNG OR TRENCH LOCATION AND
ATTHE DATE INOICATEO.ITIS NOTWARRANTEC TO BE REPRESENTATIVE OF SUBSURFACE CONCITIONSATOTHER LOCATIONSANC TIMES.'
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File No. D-4230-HOl
November'! 11, 1988
a:
d >-w '" TRENCH 11 Zw z Cl \( ~u; Q0t: ~ wll' Z ~ 0 ~
b:ZW w oJ c oJt.i 125. 10/10/88 ~z, ~..; a:,.:
oJ 0 (Juj ELEVATION DATE DRILLED ::lz w-w ~ Z a:~<I) wt.i tiiw c ... ::; J: :> =::; ti:i!!l~ < .... 0 0-Qa; a~
<I) ::; a: <I) JD555 24" Track Backhoe z"'-' >-::;8 Cl EQUIPMENT wwcn a: ~a: c
a MATERIAL DESCRIPTION I
I-R···· · .. ...: .. :-ALLUVIUM
'"' · lB-I-
2 • · ..... CL Soft, moist, dark brown~ Sandy CLAY
i-..... t-0:. '. to'
".' ... 1
i--R0 I-
P-4 •
12
I-
'"' -I-
6 : -•• : I ~ :
P--.' ~ . ~
'0" '\ •• -
i--· .:.0: '.:' I-
Tll-1 ~ Stiff~ moist to wet, medium light brown, 8 _ "0 ., ~06.2 14.7 i-, ::::': :: CL Sandy CLA~
, .. ,"
l-· Vfo
I I-
10. ·0' •• ' •• t-~ • I ••• , " ......... ." ... ~ t-· D.< 12.
· ..... ,
I-::::;.,::. ~
·'0 .. :" -· .... .1-P-
' ":/ 14.
.......
'"'
'0 '0 , ... :. t-;!i1 ::?i Dense~ moist to wet, light brown-tan, Clayey
i--~. '. ".! SC fine SAND 't:-.': :'.'~'
i-16 ~:', . :./:':': l-
1\ ,
I--t-.
i-. -,
TRENCH TERMINATED " AT 16.0 FEET
l-· l-
I--t-
o
I--I-
P-· l-
I-· 0 l-
i-· l-I
... -I-
-· I-
-· l-
I-0 l-
I--~
Figqre ~-37, ~og of Test Trench 11
SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL
t8l_ DISTURBED OR BAG SAMPLE
IJ_STANDARD PENETRATION TEST
~ _ CHUNK SAMF'L-E
•• _ CRlve SAMPLE (UNDISTURBED)'
~ ._ WATER TABLE OR SEEPAGE
NOTE; THE LOG OFSUBSURFACECONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING ORTRENCH LOCATION AND .
ATTHE DATE INOICATEO.ITlS NOT WARRANTED TO BE REPRESENTATIVE OFsueSURFACECONOITIONSATOTHER 1.0CATIONSANO TiMes.
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File No.-D-4230-HOl
November 11, 1988
a: TRENCH 12 d > w til zw
Z (!) \( !:2Cii gut;: ~
:t: ... w 9 ~ --"cJ 11:0 10/11/88 !:cz .... ~..: ~zw 0 -" 0 z u", ELEVATION DATE DRILLED et;,:5t1l W-W 0.. -WcJ c ... :l; iE ;:) =:i !;j!!l~ 0..: ~ 0-< :::i til 24!' Track Backhoe ztll-" >
til JD555 UJWIll a:
--(!) EQUIPMENT -' 0.. a: c
0 MATERIAL DESCRIPTION
I-[7'" · b.R
ALLUVIUM ,l-I-CL Soft.,..mois:t" dark bro~, Sandy ~LAY'
f-2 • · " . ~ . . l-
••••• "0"
I--0.B
l-
I-4 • .: : .::. :: l-
I--..... : .. , .: ,I-
k0 f-6 -......... I-:::.: : .:
-· .'. --becomes l-f--86 1-----wet
l-S · :.' . :. : : :: I-
0'· • , '.' ' ... ,
I--:. I, •••• I-
10. W I-
o. ',' • I-0" 'oo ", .. . , ....
l-· ·::::U) -I-
12_ .",/ --strong seepage
I-";,':.".:: I .. ./ l-
I-· ':j:J':V:' Loose, saturate~, l:i,ght brown, Silty.~i!le l-
· :i::I~:I~':'
1--14. ::\:: (:1:: SAND .--1---
, •• t' , ':.i' 'I' I-.',1.', ',. \.-l-
f-16. \
TRENCH TERMINATED AT 15 '-0 FEET
l-· -I-
--I--
I--l-
t--t--
I--l-
I--f-
l-· l-
f--l-
t-· l-
f--l-
I-..; l-
I--I-
I--t-
Figure A-38, Log of :rest Trench 12 ,
SAMPLE SYMBOLS o _ SAMFI.ING UNSUCCESSFUl. -
~ __ DISTURBED OR BM3 SAMPLE
Il_STANDARD FENeTRATION TEST
IiJ _ CHUNK SAM?l.·E
• _ DRIVE SAMFl.e -(UNDISTURSeD)
~ __ WATeR TABLE OR SEEPAGE
NOTE: THE l.OG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE S?ECIFICBORING OR TRENCH L-OCATIONAND
A TTHe DATE INDICATED. IT IS NOTWARRANTED TO Be REPREseNTATIVE OF SUBSURFACE CONDITIONS AT OTH ER LOCATIONS AND TIMES.
wife §~ -!nw a!Z ~8
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File No. D-4230-HOl
November ll~ 1988
0
:t I-Z
W S:ZW .j w-w a.. c ... :::; < rn
I-0
I--
I-
2 _
I--
I-
4 _
~ -
~ 6 _
~ -
~
8 _
I--
10
>-9 o i: :::;
1'./·····
VI.(::··::·
e' 0 1 ...
· • t,
o .: '. ~ · ' ...
V:······· · '.
• '. I '. . . .. ..... , ......
V:· .. ::·'
• '0. I
I" • \ .' . · ,. '. .
· ;.-':X': ' .• '.. • I .. ,: .: ....
.; :,,'~'.
',' .... : ••• '0' :.:::.::: :'.:
· ':": ,::::'
TRENCH 13
EL EVATIO N'-_1_0_0_---..,. . .,... _DATE DR I LL EDr __ --'-J ).LD /-/ JJ....·JL.+/J.;81.08:;....; ..
zw ~ w# Qu~ !cz ..... 'm a:,.:
r:g~ ffiU: ::lz c~ tn::! w-o °5 zm.j >-wWm a: :::;u . Co a: c EQUIPMENT JD555 Track Backhoe
MATERIAL DESCRIPTION
ALLUVIUM
CL Soft~ wet, dark broW;n~ Sandy CLAY
_~ very ~trong seepage; filled to. 8 1 ~n'less
// than 2 minutes
//
Loose, saturated. light br0W;n. fine to.
SW coarse SAND, friable
I-I-
.... -....
I--
.... 1\\...----__ " _+---+--1--
I--TRENCH TERMINATED AT 10.0' (REFUSAL) 0
I-
~ -l-
f--I-
~ -f-
..
I--I-
I---
I--l-
I--t-
I--l-
f--f-
I--~
~ · ~
... --
... -...
l-· -
l-l-
I-· t-
Figure A-39, Log of Test Trench 13
SAMPLE SYMBOLS 0_ SAMPLING UNS~CCESSFUL
i8l_ DISTURBED OR BAG SAMPLE
(] _ STANDARD PENETRATION TEST ..
il_ CHUNK SAMP!.:E
• _ CRIVE SAMPLE (UNDISTURBED)
~ _ WATER TABLE OR SEEPAGE.
NOTE; THE Loa OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AHHESPECIFIC BORING OR TRENCH l.OCATIONAND
ATTHE DATE INDICATED. ITIS NOT WARRANTED TO BE REPRESENTATIVEOFSUBSURFACECONOITIONS ATqTHER LOCATIONS AND nME5.
0
I
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1-
I
I-
I-
I-
I-
I-
I-
~
I-
I-
...
t-
I-
I-
I-
~
~
~
I-
l-
I-
I-
I-
~
i-
I-
I-
l-
I-
I-
I-
F~le No. D-4230-H01
November 11, 1988
a:
ci >-'" en
z Cl !C ~u; :r 0 ;::
!i:zli:i '" ...J C' ...J(j
...J 0 ~ tJeri w-w "-i!: :d;:j C u. ::s @ 0-« :::; '" ,'" Cl
0
,: i' ','>1':' -:: I.':',,:::,,:::
2 .;, ';((1::, SM-SP
-':/:1::'(
4 -::':I'~:.I:,::(: ." ...... ': r ,'I: :1:: -:':j.',:(:'I::: SM
6 )(1<'( --',: I: :"1 :,:,: ':
8 -~;-\::I':':' T14-1 , " -"0 ',, I
':t"I',[-", 10 _ " .. ". ~ I .' ". I'·· . ',I, '1','1,: ' .... , --" ',:1: ',r,:\-" : 12 _ .,' .' "1":1> (': .. '. ••••• I. , -,I:H': -
14 _ ' ',1":1: :1' : .0 ••• I.
: '\ :':',', :(: ': .. ,' ' .. ' -'0,' ••• ~M-SP, :,j',!,-r' 16 _ " '0": ....
.' 1':/",1',"
-'::'1'::":;'/:
18 ',:,:',,: : ,':,
I. '"
-
---
--
-.
-
-
-
I
TR~CH 14 z",
Quli: ~
170 10/11/88 !:(Z_ ~..: ELEVATION DATE DRILLED r:~~ "'(j
~Ci5g Q~
JD555 '2411 Trac.k Backhoe >-
EQUIPMENT ",UJ", a: .. a: Q
MATERIAL DESCRIPTION
ALLUVIUM
Loose. damp, light brown-tan, slightly ...
Silty fine SAND l-
~
l-
Medium. dense, moist, light brown, Silty
fine SAND, roots, voids, blocky I-
I-
~
I-
I I-
~'
I-
l-
-.....
I-
Medium dense to dense, moist, tan,
slightly Silty I-fine SAND
I-
....
l-
TRENCH TERMINATED AT 18.0 FEET I-
~
.1-
l-
l-
I-
....
-
l-
l-
Figure A-40, Log of Test Trench 14
SAMPLE SYMBOLS o _ SAMPL.INCl UNSUCCESSFUL
~ _ DISTURBED OR 8,'G SAMPLE
IJ_STANDARD PENETRATION TEST
IW _ CHUNK SAMP("E
• _ DRIVE SAMPLE (UNDISTURBEO)
~ __ WATER TABLE OR-SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH L.OCATIONAND
ATTHE DATE INDICATED,ITIS NOTWARRANTED TO BE REPf!ESENTATIVEOF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
waf a:", :;)z
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POOR
QUALITY
ORIGINAL S
-.-- --.---.-- - ------..... I· .
fRICTION RESISTRNCE
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PROJECT, LA COSTA RANCH NW .
rROJECT NUMBER-89-230-1702
1 NSTRUMENT NUMBER .• F 15CKE088
DATEIIO-Os-i988 .
[ONE RESISTRNCE
1! D' -2i 0 -2 0 910 9 0
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.-
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PR'(jBE: CPT::' I
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fRICTION AESISTRNCE a J .
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CONE RES·I STANCE TSFIKG/CHil)
110 210 2 0 a( 0
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PRDJECT; LA COSTA RANCH NW
PRCJECT NUMBER; 89-230-1702
I NSTAUMENT NUMBER: F 1 SCKE088
DRTE: 10-05-1988
---.-. ..
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.... Corporaflon
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P'AOBE: CPT ~2 .
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fRICTIDN RESISTANCE T5flKG/CM2)
0, 0 B " 2. I .! 0 U 0.
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PROJECT; ~A COSTA RANCH NW
pROJECT NUMBER: 89-230-1702
INSTRUMENT NUMBER: F15CKE088
OllTE; 10-05-: 1988
' ,
CONE flESISTANCE TSF (KG/CHI)
HO.L 210, 2! 0 S 0...1 Sf 0
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SOIL . COLUMN'
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PRr:JBE: CPT:-3
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fRICTION RESISTANCE
TSF (KG.lCHt I
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PROJeCT NUMBER a 89-230-1702
INSTRUMENT NUMBERI F15CKE088
DRTEt 10-06-1988
CDNE RESISTANCE
110 1 0' -, :fo. -.. 2!0 9 a 9
.l!!!!!! The forth ',chnDlogy --CorporatIon' .
o •• "10
SOIL CDLUMN
(
fRIeTIDN RATIO
(Yo)
, . I
....c=-
o< ~
~I-
~ l3-
-j:? < ~
-=;; !="
Ii.
::;: ~
~
0 0
1
5
2
-10 S
..
15
5
20 6
.~ '7
25
-=;::0:-p-
--"<;: 90 "-" . .. --... "-. , .
J 15
;-, 20
l-
~DO t 25
CONE PENETRn~ETEn TEST
PRClBE: CPT";'4
IS
9
t:
•
---. ----.--~----~-------
n, 0
1
5
10
15
5
~ 6 ~20
-0 -0 ...... -I
:c '1 :c
~ ~25
:x.D -q
f'I1 rI1 -I rI1 Sl S -19 tJJ
lD
B
11
12
"'
fRICTIDN RESISTANCE T5fIKG/CMa l
6. " 2 . I ! 0
t -
!
-K -f>
l
{ ~ ~ -~ .
1 )
5 0
t~· c J..
c;:
1 0
,
~ p:. .
.9 -< ~ ~ . " .
.15 .5 -.-. .. ..
6
PRDJECT; LA COST A -RAN,CH-NW
PROJECT NUMBER: 89-230-1702
INSTRUMENT NUMBER: FlSCKE088
DRTE: 10-06-1988
CONE RESISTANCE T5FlKG/CMZ)
1 0 2 o • 2~ 0 S 0 _LL 9
. .
, 7 The farth Technoloog ... Corporation -
D. ,(111
saIL CDLUMN
.r.-
fRICTION RATIO
lr.)
4
..
5
DC ~
-I :c .... 5:;z
D
5
o
5
"TJ m m -I
. '. o
a .fDD
CONE' PENETRDMETER TEST
PArJBE: CPT-5
o
1
2
9
"
5
s~ -u
-t 7:.
:a:
Bx 'm
-f m 9::0 en
lD
11
12
IS
u
15
-~--------~-.~---.,~--
f"ICTlaN RESISTANCE 5flKG/CH2)
0, 0 u " Of I : 0 110
1
. ..-' -~ ~.
-5
2
8; ,0
" ,5
5
~ 8 ~~Q
"'U "'U -i -i X., :x:
~ ~2
3: 8 ,.
ITI ITI -i n1 g: S -i3 en -
10
3
H
12 "
19
u "
15 5
I
1
i
1
: .
I·
1
<::::
> ~
6
D ?
~ < l?
1 b
~ ~ ~ ~ ~ r;;::
.c po
f-..,.-
5=" ~ c::::
.'
.
... , -.-.-
PRDJECT; LA COSTA RANCH NW
PROJECT NUMBER: 89-230-l702
INSTRUMENT NUMBER: FlSCKE088
nATF: lO-06~1988 .
CCINE RESISTANCE TSf IKG/CWI J l! 0 210 2 0 310
.-. , -J-' -.--.--.--.--.--.-
4',,: The Eorth Technology --Corporation .
SIO 41
SIHL CCLUHN q
I .......
fHICTII:JN RRna (r.) -
J j J ~,j o
~ ::;:;;;;:: 5
1
c:::= 2'
~1 o r:l
r-
-
i
= === ,--
-1"-r-.
1-
r
1 .
.400
..c
~ 1 5
1 rl L~ Dc ~
-t ;x: -i-? L-5;z
o -:!II
5 -~~
-. a
-t 5
-tS a
iI
,.
tr1 tr1 -t
·CONE PENETROMETER TEST
PAClBE: CPT:::-6
"
5
8~
"'U
-t
7:r. ....
2:
8:x
rt1 -t
rt1 9::D
CJI
10
11
12
19-
u
15
··I ________________________________________________________________________ ~~---------------------
--- - -
.-- - - -.-- -.. -.-.--.. -... - -.-.-
:~ 0
5
2
:1
10
15
5
~6 ~20 " " -f -f x 1 :J: .... :z
fRICTION RESISTRNCE TSF(KG/CH3)
8 " 2 I !O .< ~ -? II.
I~ . I ~ )
~ I
(
? ~
J ~ ~ ·I
110
CDNE RESISTANCE T5F (KG/CWa ) ' '2 0 .. :2 0 1 0 310
~25
:J: 0 ,.
f11 f11 -f m ~ 9
~. ~ ~ b
tI) -fSO
10
-95 11
12~ 40
15
45 U
~
.
15 50 . .. . .~.
'6
PROJECT; LA COSTA RANCH NW
.PROJECT.NUMBER: 89-230-1702
INSTRUMENT NUMBER; F15CKE088 DATE: 10-06-1988 .
~
-V
. ...
r? p
.,.. -.-.. .,. ., 'T
t r The·Earth T~chno!ogu _ Corporation
3l 0 4
SOIL CCJLUHN o
f" I CTI ON "RTI 0
(Yo)
o
5
o
1
2
o .... 3
400
5
o~
" -f X
H 5:z:
a
5
o
5
o
iJ
-q
111 m -f
CONE rE~ET~DMETEH T~ST
PAClBE: CPT':'7
"
5
&~
"'U
-f
1 X
..... :a::
8:7
111
-t
n1 9:D U)
10
11
12
15
u
15
---.~ ........ ---,,-----.-.,-.,-.:-.-
fRICTION ftESISTRNCE TSFlKG/CH2J
SOIL COLUH~
B " 2 .00 o
. 1
2
9
"
5
O~~--;-~--;-~~~~~~~~~~~~~~~~~~~~~~~~~~
5;-----+-----r--r~~~_+----~----~~--+_~~r_--_;----_+----~
10;-----+-----+-~~~~~r_----r_--~----~----~----_+----_+----_i
15;-----+-----~--~~~--~----r_--~~--~----~----_+----_+----_i
c m 6 ~20;-----;-----;-~~+-~==r-----r---~~--~~---1-----+-----+-----1
-0 -0 -t -t :c 7 :c
~ ~i5;_----T_----T_~7_i-~--+_----r_--~r_--_;~--_1----_+----_+----~
:J: 8 .. ~ in m m :u 9 -t W 9o+-----+-----+-~--r_~~~--~~--~----_4----_+----_+----_+----~
10-1
95~----+-----+-_1~+_~--~----~--~----_4----_+----_+----_+----_i
11
12 .O;-----+-----~~-;--_7~----_r----+_----r_--~,_--_+----_r----~
19
u .5-1--i--=~;,._+__d===~~~=_J_--'-_l_-~__l_~~
15 5Dl-~~~~~-1~~hn~~~~~~~~rnnJ~~~~
6 -100
fftICTION ftATIO
(7.)
:1
o
1
2
s
i
s
6° m -0 ..... ,:r.
z
~ nI nI
0"'"
5
i o
i 5
D
B
o
11
12
19
u
15
PROJECT:
PROJECT NUMBER: 89-230-1702
INSTRUMENJ 'NUMBER: F15CKE088 t J Tht: farth Tl:chnology
-Corporation
caNE rEN~rRqMETER TEST
PAClBE: CPT-8
nATE: 10-~-19a9 .
- -_.-- - - -.-.. - - - -.-.~ - -... -
:~ 0
5
:2
:1
10
15
5
~ B ~20 ." ." -I -I :x: 1 ::c ..... ~25 z,
:x B "11 fTI rt1 -I rt1 ~ 9 -ISO en
10 I
95
11
12~ .0
19
-15
U
15 50
fRICTION RE5ISTANC~ T5f[KG/CH2) B . " 2 ( .• ...L,!
·K ~
),
f
.,z :? (
'[
t \:..
T
b? ~
~ :1
3 '>r
.
6
O.L 11 0
::>
~
rR~JECT: LA COSTA RANCH NW
PR~JECT NUMBER:.S9-230-1702
INSTRUMENT N'UMBER: F15CKE088
DATE: l' 0 ...... 06-1 988 .
CCINE RESISTRNCE TSF (KG/CH2 ) I! 0 210 2! 0
L
S( 0
.
'j • The farth Technologg .... CorporatIon,
;I 0 -i( I
-
. .
saIL ,CPLUMN
400 .
[
fRICTION RATIO 00 : I
'-~ ::::::,.
~ c:::::
-=::--.
~ 1-.
~
-~
~
..:::0.
<;:
~ :?
~
-== [t
~ -; =-•
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r-==;:;:
.:::s
2..
~
~
l-e .
1
1
-'" I·
-'" .
..
o ,.0
1
5
2
o t"3
5
aD r::
-t :x: .... 5 z
•
5
SD ~ -t
1 ':I: .... .
:z
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0"" 9~ en
10 ... .. 5
11
.. o 12
19
.. 5
1-1
r ... o
a
15
C (J N ErE N·E T H CJ MET E fI T'E S T
PArJBE: CPT-:-9
- -~.--.. ---- --- --- -.. --.... -~----------------------------~----~--I
fRICTION RESISTANCE F G/eH') TS (I{
I ! 0 6 " 2
12
o (
{ j:
/ ~
:? ~~
;; ~~
"::::::::6,
~i F
~ )
~
~ ~ po
b
o
1
5
2
9 10
1.5
5
6 20
7
25 o
9 90
10
95
11
15
?i -~
~ ~
.,..r-f:>
~ '.(
45
50
16
11
I 55
o 0 fl1 fl1
::!ll8 " X ;! 60 I
I I
1;1 . , .. . -'"':._ .. . . ,-..
25 75 .
8 0
25
26 8 5
21
9 D
28
29 9 5
80
10 0
"82 10 5
88
\ 'u 0
.. " ..... ~ '~'~5' ,ll"
: ~
... -._ .. .. ...... ...... ..
§
..
II'" ':." •
"
96
12 D
, ~1
.
58 ~25
6
rR~JECT' LA COSTA RANCH NW
rR~JECT NUMBERIS9-230-1702
INSTRUMENT NUMBER1F15C~E088
DATE: 10-06-1988
l.,', ..
11 0 :
:::--
:::::.
-_ . -_ ....
,
.
. .. -
CDNE RESISTANCE TSF(KG/CI1I ) 2i 0 2!0 1! 0,
, .. .
.
-.-
910
. '--~-
l!!!!I! 'h, farth ',chnoloUII iiii torporatlon
....... "
" ... ;. ..... ," ~
510 410
SO'll COLUMN
I
FIHCTIDN RATID . (1.)
~ ~ I
~~~
""---,.,----~ -~ ~
f o o
5
2
?s. 10 3
.......:= Eo
{S
--=:: 5
b. ---=
~ 20 6
~
'<:::
-
--=::::
~
, -::5
c::;: ,-:
I...:::s"
""" 1"-.
~ ~
""'--=s
I
II
\
-.' -, -------.-. ,
400
2S.
~
::s-
~-~
30
55
l~
40
~ so -
55
c
fl1 " 60~ .... z
5S;:!!
fl1 -t
70
" . ----
15·
80
85
90
95
100
105
110
-~ ---_.
"~ 15
1 20
125
a
'CONE PENETROMETER TEST
PR~BE: CPT:'-10
.: ..... .
. . 0.. • ...... . ~ ;' : . ' . .' ,'j, '., .,' '.
1
D
9
10
11
12
C
fl1 18~ :c
19~
9
4
T
- - - - - - - - - - - - - -.. -.-- -
fftICTION ftE5I5TR~CE TSf'KG/CH3)
1
0, O;-~~~~~-r--~~~==~~~Lt~~Lt~~~~~~~~~~~~~~~
2-1
9-1 10;-----r_--_;~--_r----+_~~r_--_+----1_----r_--_;----_r--~
" l5;-----r---~~--_r----+_--_dF_--_+----~----r_--_4----_r--~
~ 6 ~20;-----;-----~~--~----~~--~----~-----+-----+-----+-----+-----; "'Q ,.
5
-t -t
X 7 :J: . .... .
z ~251_----;_~~~----~----~----_r~~_r----_+----_+----_+----_+----_;
3:8 -q'
I'll fII
I'll -t
-t rn ~~--~~==~t---_Jl_~~L_---=t::;~t===::t:::~L_----1_----l_--__J ~ II 90
10-1
11
12
19
u
15
95;-----+--s~~--~.----~~~~----~----r_--_;----_+----~--__4
40;-----+---~~--~----~--~~----+_----~--_1~--_+----~--__1
45t----_1--~~~_1~---~t:==t=~_r-----r_--_r----r_--_t--~
50TI-'~r-~~~-L~~~~~~~~~~~~~~~~~~
6
SaIL COLUMN
400
I
I-
-
fRIcnON RRTIa , l;') . I .
? <-
t:;1::::::::..
'I--.
..: ~
l I-
• r:::::
"" t5 ~ oc:::::::; ~
~ -.c::
~
[
""i I->
I o ... 0
1
5
2
1 o r:l
" 1 5
5
liC 0°[6 0 r:: ~ --t --t :J: ,':I:
i"
.... 5:z
o I OJ,
~, 5 ,"
i o
i 5
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B
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.....
z
0::.: I'l1
--t
fTI S:D
CJ)
10
11
12
15
1.
15
PAOJECT;LA COSTA RANCH NW
PROJECT NUMBER: 89-230-1702
INSTRUMENT NUMBEA:F15CKE088
DATE: 10-05-1988
.... The Earih Techn%gg .... Corporation
CONE rENETHOMETEH TEST
PROBE: C'PT:"'II
r-----------------------______________________________ ~--_________________ _ -j'.-- - - -..... - - - -...... - --'-"'-'
.:.-.... ··M __ ·
',--
o 0
5
2
S 10
.,
15
5
6 20
7
25
8
9 50
10
55
11
12 .0
IS
15 50
17 55
CJ CJ (lI (lI' ~18 "1J X ~ tJO
~19 ~
~ 65 rt1 -t
." .. 7\1 :
"
"2S '15
. 80
25
26 85
27
90
26
29 95
so
100
5 .
0
"-§
5& .
12 Q
97
~
-
6
fHICTI~N RESISTANCE TSF(KG/CHI)
G " 2 I
~ P
t' --)
S
(
K -'~
R ;
!
~ c.::::::::: b
::>
~
.c:;: > <: :) ,
[:::;:=.
--<:: :s:-J
..",;: I
-~ L-?
< f\
-' ..
~ 0
.~
/.-)
(
l
)
~
L
)
~
~ C"..
..s.:..
~
.:::: p0-
~
~ ~ :c: ~ .,
i I>-
--> c: -~ I
I
\
. _ .. -._ M • -I . -'-.... ----.
I
..
.
rR~JECT~LA COSTA RANCH NW
rROJECT NUMBERIS9-230-1702
INSTRUMENT NUMBERaF15C~E088
DATE a -98
110
--
....
CONE·RESISTANCE TSf(KG/CHI)
2!0 1 0 2 0
-E;;.
-
!I 0
--. -----, ...
= Thl forth ',chnolo91l iiii Corporation .
9 0 4 o
SOIL COLUMN
I
fRICTIDN HATID
(I.)
~
--... ~ --~ -------
~ po
t.3.: .5-
0, o
1
5
2
~ r-----., 10 8
-=5 I~
~ -==--
3.-
15
r-~
. ~ ~ 1-.
~ -==---==-:=;
20
=~.-
-.:: -~ .-.::::-
25
"-.I~ ~ so
.~
~
<:::: ...
c:::: -40 'c:--
-"=-
-::L
""""" -r-...~
..i5 I=. ===-
-c::: -==-I::::a,-~ "-=--
=~ ~ ..0::: 13-'
.~
----~---.
r
1
1
~
-:--~ ..... -~.--~.----.. ----. _ .. .•. ...
L~
1
1
~oo II
caNE .rENET"aMETE~ TEST
PRClBE: CRT::'-12
~ .. -, .~~
'5
6
'1
D
9
10
11
12
I
I ,-------------------------------------------------------------------------~---, I I
I CONE PENETROMETER TEST DATA I • I
I I
I SOUNDING · CPT~2 LOCATION · CARLSBAD· CA I · · I
PROJECT · LA COSTA RANCH NW I NSTRUl1ENT · F15CKEa88 I · · PROJECT No: 89-2313-1 H2 ELECTRONICS: Tl
TEST DATE ; U-05-1988 OPERATOR · EC/HS/EC/NS · I -----------------------------------------------------------------------------
eOND'UCTIVITY DEPTH CONE FRICTION RATIO PORE EXerT
I (ft) (tsf) (tsf) (7.) (p s i) ( u'11 H 0 SIc I~ ) ( vdc) ----------------------------------------------------------------
0.00 13.0 0.00 0.00 NA NA lB. Blil
1. ~0 28.9 0.54 1. 88 NA NA 10.130
2. o III 19.3 0.76 4.Bb NA NA 10.\l0,
I 3.010 26.2 1.77 6.75 NA NA 10. lila
4.00 27.1 1. 43 5.28 NA NA 10.0,0
5.00 23.9 1.77 7.41 NA NA 10.00'
6.00 24.8 1. 74 7.00 NA NA 10.00
I 7.00 23.0 1.94 8.45 NA NA 10.00
8.00 19.4 1. 61 8.30 NA NA 10.IHI
9.00 21.7 1.20 5.54 NA NA 10.00 10.00 26.7 1.54 5.77 NA NA . 10.00
11.00 27.2 1.51 5.55 NA NA 10.00
I 12.00 26.3 1. 69 &.39 NA NA 10.130
13.00 2~.3 1. 61 7.94 NA NA I 10.00
14.00 23.5 1. 41 5.99 NA NA 10.00
15.00 21.7 1. 45 6,.66, NA NA Ul.00
I 16.00 22.6 1. 45 6.39 NA NA 10.00
17.00 24.9 L41 5.b7 ~IA NA 10.~0
18.ID0 19.4 1. 11 5.71 NA NA 10.·~0
19.130 33.7 1. 72 5.11 NA NA 10.00
20.00 24.7 1.42 5.75 NA NA 10. B0 I· 21.00 23.6 1. 25 5.30 NA NA U.130
22.00 1&.3 1.12 &.8& NA NA 10.00
23.013 20.0 1.15 5.77 NA NA 10 .• 00
24.00 25.0 1. 29 5.15· NA NA 113.00
I. 25.00 21.3 1.05 4.93 NA NA 10.00
26.130 24.1 1. 19 4.93 NA NA '10.00
27.130 26.9 1. 39 5.19 NA NA 10.00
28.ID0 39.7 2.45 6.16 NA NA " ,":.1.0 .• ,00 : 29.130 53. t 3.13 5.89 NA NA 10.130
I 30.130 26.4 1.16 4'.39 NA NA 10'.00
31. 00 29.2 1.26 4.33 NA NA ltD. 013
32.130 40.7 1. 16 2.B6 NA NA 10.00
33.~0 26.5 1. 37 S.17 NA NA -10.013
I 34.00 30.6 1. 64 5.36 NA NA 10'.00
35.00 _' 32.5 1. 51 4.64 NA NA Ul.00
36.130 12.7 0.59 4.65 NA NA 10.013
37.130 21.9 1.20 5.49 NA NA 10.00
38.00 29.3 1. 4B 5.05 NA NA u~,n
I 39.1313 27.13 1. 75 6,.48 NA NA 10.013
40.013 27.0 1. 62 5.98 NA NA U.la0
4L00 42.2 2.84 6,.73 NA NA 10.00
42.00 50.0 3.62 7.25 NA NA 10.130
I 43.130 36.2 1. 42 3.cn NA NA 10.00'
44.00 36.2 1. 42 3.91 NA . NA 10.1313
45.00 47.7 3.22 0.74 NA NA lIiL 00
46.00 97.8 1. 62 1.66 NA -NA 121.00 47.00 37.2 1. 69 4.56 NA NA 10. a~ I. 'lB. wHI 11'7.5 1.80 1. 53 NA NA 10.00
49.00 78.5 3.02 3.BS NA NA 10.00
50.00 193.8 13.68 7.06 NA NA ilL 00
I
I
I
I
I 1-----------~-------------------~---------------------------------------------, I I
I CONE PENETROMETER TEST DATA
I
I. I I
I SOUNDING . CPT-3 LOCATION · CARLSBAD CA
I . •
.1 PROJECT ~ LA COSTA RANCH NW INSTRUMENT : F15CKE'aB8
I I PROJECT No: 89-23'a-1702 ELECTRONICS~ T1
I
I I TEST DATE I 10-05-1988 OPERATOR · EC/I1S/EC/MS
I · I
I
I -----------------------------------------------------------------------------I
I DEPTH CONE FRICTION RAno PORE CONDUCTIVITY EXCIT
(ft) (tsf) (tsf) (i.) (psi) (uMHOSI Cll) (vdc:l
----------------------------------------------------------------
2l.~0 0.0 0.00 0.~0 NA NA Hl. 00'
L~0 3t.7 'a.41 1. 28 NA NA lta.00
I 2.00 2B.9 0.37 1.28 NA NA 10. 0~
3.00 35.8 0.Bl 2.26 NA NA 10.00
4.00 30.3 1. 42 4.68 NA NA 10.00
5.00 28.0 0.71 2.52 NA NA LkL 00
·1
6.00 34.4 0.B7 2.54 NA NA 1ta.!!I0
7.00 27.5 2.26 8.22 NA NA US. o III
B.0Ii! 25.7 2.02 7.87 t{A NA 10.00
9.00 21.1 1. 41 6.69 NA NA 11iL 00
1I1l.00 21.1 1. 44 6.84 NA NA la.00
I 11. 00 19.7 1. 31 6.62 NA NA 10.00.
12.014 21. 6 1. 27 5.89 NA NA 10.1110
13.liHl 26.6 2. l~ 7.B7 NA NA 10.00
14.00 30.3 2.36 7.77 NA NA 114.00
I 15.00 23.4-1.57 6.72 NA NA 1Ia.130
16.00 24.8 1. 81 7.30 NA NA 10.00
17.00 25.3 2.25 8.91 NA NA lla.0~
l8.n 23.9 2.28 9.56 NA NA 10.00
19.00 23.0 1.50 6.53 NA NA 10.00
I. 20.00 22.0 1.40 6.33 NA NA llLtillll
21. 013 37.7 1.94 :5.15 NA NA 10.00
22.0m 34.0 1. 49 4.413 NA NA 11ll.~\lI
23.00 45.5 2.10 4.63 NA NA 10.00
I 24.0\1l 23.0 1.36 5.91 NA NA 11:~. ~0
25.111111 22.0 1. 59 7.22 NA NA 1~.00
26.100 26.6 1.69 6.36 NA NA -1111.00
27.00 26.6 1. 52 5.71 NA NA 10.00
2B.00 49. 1 2.81 5.72 NA NA 10.1ll~
I 29.0ti1 46.8 2.47 5.-27 NA NA U.00
3111.00 51.9 3.04 5.B7 NA NA 113.00
31. flllll 60.6 2.23· 3.68 NA NA 113. III 0
32.00 64.7 3.41 5.27 NA NA lIa.0~
I
33.00 88.2 2.33 2.64 NA NA 10.~0
34.013 3~.8 1. 82 5.90 NA Nil. 10.1ll0
3S.\lI0 29.4 1. 61 5.48 NA NA 10.00
36.00 53.3 2.80 5.25 NA NA 10.00
37.00 7flJ.7 4.32 6.11 NA NA Hl. 00
I 3B.00 70.7 4.53 6.413 NA NA 10· •. 013
39.013 59.7 3.74 6.27 NA NA 10. 0~
40.00 45.5. 3.136 6.74 NA NA 10.00
4l .. ~qJ 54.2 2.ei9 4.77 NA NA 10.00
I 42.00 65.2 3.26 5.01 NA NA 10.00
43.00 73.5 3.98 ei.41 NA NA U.00
44.00 52.8 2.96 5.60 NA NA 10.00
45.013 164.4 .9.80 5.96 NA NA -HI. 00
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I CONE P E-N E T R 0 MET E R TEST DATA I
I I
I I I I I SOUNDIN6 · CPT-6 LOCATION :-CARLSBAD CA I
I · I
I PROJECT • LA COSTA RANCH NW INSTRUMENT -: F15CKE0B8 I
I • I
PROJ EeT No-: 89-230-1702 ELECTRONICS: T1 I I
TEST DATE · 10-06-1988 OPERATOR 1 EC/MS/EC/MS I · I I I -----------------------------------------------------------------------------
DEPTH CONE FRICTION RATIO PORE CONDUCTIVITY EXeIT
<ftl (tsf) . (tsf) (I.) (psi> (uMHOSlCQa) (vdcl
----------------------------------------------------------------.
21.00 0.0 0.00 0.00 NA NA 10.00_
1. 210 bb.l 1. 80 2.72 NA NA 10.l3kJ
2.00 66.1 4.62 &.99 NA NA 12.00
3.013 102.3 6.83 6.67 NA NA 10.013
4.00 90.8 6.22 6.85 NA NA 1m.0B
5~00 68.3 3.98 5.68 NA NA 10.1313
6.00 61. a 4.66 7.54 NA NA 1Iil. 1il0
7.00 63.6 3.95 6.20 NA NA 10.00
8.00 82.9 3.44 4.15 NA NA U.01l1
9.00 63. l 4.97 7.87 NA NA 10.00
U.00 69.5 5.14 7.39 NA NA 10. Be
L1.00 77.7 4.70 [:10 04 NA NA 10.00 .
12.00 62.1 4.87 7.84 NA NA 113.0Ia
13.130 42.7 3.89 9.09 NA NA 10.00
14.00 36.3 3.14 B.65 NA N-A 10.00
15.00 41iL 4 3.17 7.B6 NA NA 10. 0~
16.00 28.9 2.16 7.47 NA NA 10.0111
17.00 29.8 2.26 7.59 NA NA lIa.00
18.00 31.1 2.40 7.71 NA NA 10_.U
19.00 27.9 2.07 7.43 NA NA 10.00 -
20.00 38.9 2.81 7.22 NA ~IA--10.00
21.00 42.5 3.18 7.49 NA NA 10.00-
22.1313 44.8 1. 99 4.46 NA NA U.00
23.00 52.1 3.04 5.83 NA NA lIa.00
24.00 31. 4 2.23 7.12 NA NA 10.00
25.00 40.1 2.34 5.83 NA NA 10.013
26.130 37.3 2.17 5.82 NA NA 10.00
27.00 4B.7 3.15 0.47 NA NA 10.00
2B.00 21.2 1. 42 6.73 NA NA 10.00
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I CONE PENETROMETER TEST DATA I
I
I
I
I SDUNDIN6 · CPT-Il LOCATION · CARLSBAD CA I · · I PROJECT :' LA caSTA RANCH NW INSTRUMENT · F15CKEIII88 , · I PROJECT No: 89-230-17132 ELECTRONICS: T1 I
I TEST DATE · 10-06-1988 OPERATOR · EC/MS/EC/MS I · · I I , -----------------------------------------------------------------------------
DEPTH CONE FRICTION RATIO PORE CONDUCTIVIT'( ExciT
I (ft) (tsf) (tsf) (i.) (p s i) (uHHOS/cfti) (vdc) ----------------------------------------------------------------
0.00 0.0 0.00 0.00 NA NA HI.00
1.00 48.7 0.71 1. 46 NA NA 10.00
2.~0 41.3 0.54 1.31 NA NA 10.00
I 3.00 30.7 0.37 1. 21 NA NA 10.00
4.00 44.9 0.61 1.35 NA NA 10.00
5.00 48.6 0.61 1.25 NA NA Ul.00
6.00 49.9 El.91 1. 62 Nfl NA U.U
I 7.00 60.0 0.91 1.52 NA ,NA -U~. 00
'S.0a 70.6 0.98 1. 39 NA NA H~. lila
9. o III 87.1 1. S'6 1. 79 NA NA 10~0~
1IlI.U 89.3, 1.35 1.51 NA NA ilL 00,
11.0lil 80.6 1. 25 1.55 NA NA 10.0~
I 12.1d0 78.7 1.59 2.02 NA NA 10.00
13.00 88.8 1. 62 1.82 . NA HA, 10.00
14.0(1) 97.5 2.16 2.22 NA NA 10. 0~l
15.00 96.1 2.50 2.6~ NA NA 10. 0~
I 16.00 93.4 1.72 1. 84 PIA NA U.00
17.00 11ll3.,0 2.06 2.00 NA NA 10.00
lS.I!l~ 85.1 2.36 2.78 NA NA 10.00 '
19.00 ' 74.0 1. 62 2.18 NA NA UL~0
20.00 60.2 1. 14 1. 89 NA NA U.00
I 21. 00 6B.5 1. 17 1.71 NA NA lIh 00
22.0~ 68.0 1. 14 1. 67 NA NA 10.00
23.00 78.1 1. 14 1. 46 NA NA ,Ul.00
24.00 66.1-3.21 4.85 NA NA 10.00
I 25.00 11 B. 4 3.21 2.71 NA NA 10.00
2b.00 119.8 2.70 2.25 NA NA .10.,00
27.0fa 94.1 2.46 2-.61 NA NA 10.00
28.00 86.7 1.98 2.29 NA NA 10.IHi}
29.'00 234.1 4.29 1. 83 NA NA 10.00
I 30.130 111. :5 4.56 4.09 NA NA U.00
31.00 105.21 3.30 3.15 NA NA 10.00
32.00 98.1 3.34 3.40 NA NA 10.00
33.00 87.1 2.32 2.66 NA NA i0.~0
1-34.00 80.2 2.42 3.02 NA NA 10.00
35.00 66.8 2.83 4.23 NA NA ' 10.,08
36.00 89.3 2.08 2.33 NA NA 10.00
37.00 52.1 3.37 6.47 NA ' NA U. 00'
38.013 91.1 2.08 2.28 NA NA 10.00
I 39.00 99.4 1.98 1. 99 NA NA 113. 00
40.00 75.9 2.14 2.82 NA NA 10.00
41.00 79.1 1. 87 2.37 NA NA 113. 0~
42.013 7111.4 1.b0 2.27 NA NA U.00
I 43.00 02.S 1. 29 2.07 NA NA 10.00
44.00 50.6 2.S1 4.97 NA NA 10.00
45.00 00.7 2.04 3.36 NA NA ~ 10 .1il0
4b.01lJ 124.5 2.38 1.91 NA NA 10.00
47.'00 97.4 3.40 3.56 NA NA 10.00
I 4B.00 141. 4 1. 83 1. 30 NA NA 10.3m
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CONE PENETROMETER TEST DATA I: SOUNDING . CPT-12 LOCATION · CARLSBAD CA . · ·1 PROJECT : LA COSTA RANCH NW INSTRUMENT': F15CKE0S8
PROJECT No: 89-230-1702 ELECTRONICS: Tl
TEST DATE : 10-06-1988 OPERATOR · EC/t1SIEC/MS
I: · -----------------------------------------------------------------------------
DEF'TH CONE FRICTION RATIO PORE CONDUCflVITY EXeIT
I' (ft) (tsf) (tsf) (%) (p 5 i) (uMBOS/cl1I) (vdc:)
----------------------------------------------------------------
0.IH~ 0.0 0.~~ 0.00 NA NA 1~.00
1. 00 411.4 1. 12 2.77 NA NA 11!l.1!l0
I 2.00 40.9 IIl.S5 2.08 NA NA 10.00
3.fdQl 45.0 2.58 5.73 NA NA 10. o III
4.00 28.5 2.48 8.70 NA' NA 10.00
5.00 '11.0 1.06 6.20 NA NA. ' 10. III III
0.00 17.5 1.1116 6.03 NA NA lB. lUI
I 7.00 11.5 0.75 6.51 ,NA NA 113.({J0
8.0~ 8.3 0.41 4.95 NA NA U.00
9.00 9.7 0.41 4.25 NA NA 1~.00
10.00 14.3 0.82 5.73 NA NA 'lZ~ ~~
I 11.00 19.9 1.30 6.54 NA NA 1~.~0
12.00 13.9 1.16 8.37 NA NA 10. Ii! III
13.00 1L .1 la.75 0.78 NA NA 10. 0~
14.00 10.7 ' 0.75 7.07 NA, NA 10.00
15.00 17.0 0.99 5.65 NA NA 10.00
I 16.1210 17.1 0.96 5.61 NA NA 10. a0
17.0121 22.2 La 37 Q.17 NA NA. Ul.llJ0
18.e0 23.1 1. 50 6.51 NA NA U.00'
19.00 13.13 0.89 6.87 NA ' NA 1121.00
I 20.00 14.8 0.93 6.25 NA NA 10.00
21. 'll0 10.7 0.76 4.55 NA NA 10.1:'10
22.111111 17. '0 1. 40 7.97 NA NA 1'1.00
23.lHI 12.1 0.67 5.53 NA NA 113.00
24.1i!Q1 15.8 0.83 5.24 NA NA 10.00
I 25.130 18. 1 1l.83 4.58 NA NA Ul.00
26.0111 27.7 1. 75 6.29 NA NA U'l.00
27.00 26.B 1. 75 6.51 NA NA 10.00
28.00 38.3 1. 88 4.91 . NA NA Hl.00
I 29.00 34.2 1. 75 5.11 NA NA Ul.00
30. III 0 24.1 0.97 4.1i!1 NA NA 10.00
31.00 31.5 1.38 4.37 NA NA 1121~00
32.00 48.9 2.29 4.69 ,NA NA 10.00
33.00 26.0 1. 31 5.04 NA NA 10.00
I 34.00 111. 4 3.38 3.03 NA NA ' 1121 .~Hi
35.00 52.0 2.67 5.07 NA NA_ 10.00
36.0Ql 49.4 2.16 4.37 NA NA -10.00
37. III 0 75.1 1. 18 . 1.56 NA NA 10.00
il 38.00 94'.0 1. 35 1.43 NA NA 1'0.013
39:00 47.0 2.16 4.54 NA NA 10.1313
40.013 35.7 1. 99 5.58 NA NA 113.1313
41. 00 105.9 13.8~ 0.70' NA NA U.00
'I 42.1313 190.4 3.93 2.136 NA NA -1I3.lHl
43.1313 63.7 2.00 4.139 NA NA 10.00
44.00 151. 9 0.91 0.53 NA, NA 10.1313
45.1313 111. 5 2.61 2.34 NA NA 10.00
46.013 22.4 13.4\11 1.78 NA NA ' -10.00
I 47.1313 22.9 13.81 3.53 NA NA 10.08
48.1313 53.2 0.94 1.18 NA NA 10.00
'49.1313 58.2 2.74 4.71 NA NA 10.~13
50.1313 44.0 2.74 6.24 NA NA 10.00
51.013 59.a 1. S2 2.55 NA NA 1~.1!I0
I 52.013 34.4 1.22 3.54 NA NA lB.n
53.013 29.8 13.98 ~.29 NA NA 10.130
54.00 15. 1 13.54 3.57 NA NA 10.akl
55.,013 17.0 0.40 2.39 'NA I NA 10 .• 00
I 56.013 14.7 0.54 3.09 NA NA 10.00
57.1313 14.2 13.78 5.4'8 NA NA 10.013
59.013 1713.3 4.02 2.36 NA NA 10.130
59.130 86.8 1.43 1. 64 NA NA 10.1110
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File No. D.4230-H01
November 11, 1988
TABLE I
Summary of Direct Shear Test Results
Dry Moisture Unit
Sample Density Content Cohesion
No. pef % psf
B7-2 . 10S.4-16.5 1160
BS-7 112.7 15.5 1420
B9-5 1115.0 15.1 290
B11-2 95.9 26.5 250 .
B14-5 119.5 1'3.6 730
*B15-8 92.0 29.1 190
B16-3 107.5 '. 18.9 990
*B17-1 111.2 17 .1 700
* Residual Shear
Angl.e of
Shear
Resistance
Degrees
27
30
35
29
28
10 .
27
16
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File No. D~4230-HOl
Novembe·r 11, 1988
LABORATORY REPORT
Telephone (619) 425-1993 Established 1928
CLARKSON1 LABORATORY AND SUPPLY INC.
350 Trousdale Dr. Chula Vista, Ca. 92010
ANALYTICAL AND cc:NSULTI!'X; CHEMISTS
Date: 10/18/88 .
Purchase Order Number: 4230-HOI
Account Nuni::ler: GEXJX.
To:
*'-------------------------------------------* GEO:ON m:::.
9530 IXlQDY DRIVE . 'SAN DIEm, CA. 92126
Laborator:y Nt.IIIDer: 502054 CUstomers Phone No: 695-2880
Sample Desi~ation: * . *
.. One soil sample marked job nane La Costa NW file
i4230-HOI sample iB15-9.
ANALYSIS: By Test Method No. Calif. 643-C Octd:>er 2, 1972 state. of
Califor.nia D~tment of Public Works Division of Higbways
Materials and Research Depar1::m=nt Method for EStimating the
Service Life of Metal· CUlverts.
pH 3.3
Water Added (ml) a
50
50
50
50
50
50
50
50
Resistivity (obm-~)
4110
1450
. 490 ~
270 .
380·
280
250
250
250
Less than 5 years to perforation for a 16 to 8 gauge metal culvert.
',' "
" ........
,.t' ,
.. ',4"
. ', .. ~ .. ,
\' . '.
.' ': ..... :.
. , . :'.:~~;i~:~
~ .. :, 'il:?;~":
.t{~
"'.' .'
• .... i,,;.» ... .
)-.. ... ' ?,
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II File No. D-4230-HOl
November 11. 1988
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z o ,~ <: c
:::i o
CIJ Z o (,)
I-Z
W (,) a: w c..
Figure B-1
SAMPLE NO. ,82-3
, I I 'O~~4--+-+~++~~--~-+-+~~~--_I~--*I-+~~rH ............ i'.... /-WATER ADDED II
I
0.1
I ", (' I I I
0.5 1.0 S.O 10.0
APPLIED PRESSURE (ksf)
INITIAL DRY DENSITY 99.0 (pef) INITIAL SATURATION
INITlAL WATER CONTENT 24.0 C <.6 ) SAMPLE SATURATED AT
CONSOLIDATION CURVE
LA COSTA RANCH -NORTHWEST AREA
CARLSBAD 3 CALIFORNIA
SO.O 100.0 '
85,.0 ,( <.6 )
0.5 C !<sf ). t
I
lI~ile No. D-4230-HOl
vember 11 1988
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z
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Cl
-1
0 en z 0 u
l-z w u c: LU a.
-
SAMPLE NO. 86-3
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0 .......... / ~ ( "-I "' ~
2 ......
3
4
5
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0.1 O.S
INITIAL DRY DENSITY
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.;-"1-WATER ADDEO I
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!
" , I ..... ......
'"" ·1 r-. .............
.............
...............
'\ I ~ I I'-...... ......... ~I I
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1.0 S.O 10.0
APPLIED PRESSURE (kst)
110.4 ( pet) INITIAL SATURATION
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INITIAL WATER CONTENT 18.0 ( " ) SAMPLE SATURATED AT
I.
I Figure B-3
CONSOLIDA TION CURVE
LA COSTA WiCR -NORTHWEST .AREA
CARLSBAD, C.ALIFOBNIA
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50.0 100.0
67.5 ('l6)
0.5 (ksf) •
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File No. D-4230-H01
November 11, 1988
SAMPLE NO.
I
84-4
~.1 ..
WATER ADDED
V
z 0 ......... i"'-r-. 0 ~ \., ~~ I-~ " < I \ ...... r-.. C i'r-. " ,
:J ~~ " 0
C/) ~ z 2 r-..
0 .......... ........... !\ 0 :--...... ~ I-" z 3 ~
W
0 a: w c..
I
0.1 0.5 1.0 S.O 10.0
APPLIED PRESSURE (ksf)
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INITIAL DRY D.ENSITY 105.3 ( pet ) INITIAL SATURATION
INITIAL WATER CONTENT 21.2 ( '*' ) SAMPLE SATURATED AT
CONSOLIDATION CURVE
LA COSTA RANCH -NORTHWEST AREA
CARLSBAD, CALIFORNIA
Figure B-2
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( _.
Project No. 04230-12-03
September 25, 1996
Morrow Development
c/o Villages of La Costa
Post Office Box 9000-685
Carlsbad, California 92078-9000
Attention:
Subject:
Gentlemen:
Mr. Fred Arbuckle
LA COSTA NORTHWEST
CARLSBAD, CALIFORNIA
PRELIMINARY RIPP ABILITY STUDY
••
In accordance with you request, we have performed the initial phase of a preliminary rippability
. study for the subject property. The purpose of this study was to provide an initial evaluation of the
potential difficulty in excavations durin:g grading within the portion of the project underlain by rock.
The Santiago Peak Volcanics (Jsp) are exposed along the upper slopes in the"southeastcorrier of the
site. Ten seismic refraction traverses were conducted on September 23 and 25, 1996. The
approximate locations of the seismic lines are shown on the attached Site. Pian, Figure 1. .
The results of the survey indicated a variable but relatively shallow depth ofrippable materials. The
interpreted depths are present in the summary in Table I and on Figure 1.
This rock formation is characterized as highly variable in depth "of decomposition. While seismic
studies are a suitable method of evaluation, the actual extent of rippability' may exceed the
interpreted depth where fracturing within the rock is present. It is our experience that where the
fracturing is extensive, grading may be possible although more difficult. Grading in this condition
requires an extensive soaking to soften the fracture zones.
It is recommende~ that a second phase of the rippability study be implemented. This could consist of
either trenching or borings utilizing an air tra9k drill. The latter is less intrusive and would not result
in the extent of disturbance associated with the trenching.. . . .
If you have any questions regarding this letter, or if we may be of further service, please contact the
undersigned at your convenience.
AS:DFL:slc
(6/del) Addressee
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S-1
5-2
-5-3
S-4
5-5'
5-6
S-7
8-8
S-9
S-10
NOTE:
4198
3178
3403
5192
1791
1459
3430
2981
1411
2378
10619
9976
8868
32685
8019
3639
18373
32156
4581
12892
, 'Vl =
V2
V3 =
Dl
D2 =
[. ',' ". "::','
i4-17 \00
5-6 100
2-10 100
22 100
100
10989 2-3 12-24 100
16-21 100
19-21 100
9055 3-7 12-24 100
4-8 100
Velocity in feet per second offlISt layer of materials
Second layer velocities
Third layer velocities
Depth in feet to base offirst layer
Depth to base of second layer
30,
30
30
30
30
30
30
30
30
30
For mass grading, materials with velocities of less than 4500 fps are generally rippable with a D9 Caterpillar Tractor
equipped with a single shank hydraulic ripper. Velocities of 4500 to 5500 fps indicate marginal ripping and blasting.
Velocities greater than '5500 fps generally require pre-blasting. For trenching, materials with velocities less -than 3800
fps are generally rippable depending upon the degree of fracturing and the presence or absence of boulders. Velocities
between 3800 and 4300 fps generally indicate marginal ripping, and velocitieS greater than 4300 fps generally indicate
non-rippable conditions. The above velocities arc based on a Kohring 505.
The reported velocities represent average velocities over the length 'Of each traverse, and should not generally be used
for subsurface interpretation greater than 100 feet from a traverse.
Project No. 04230-12-03 September,25. 1996
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APPENDIX D
SELECTED BORING LOGS
FROM
. GEOTECHNICAL INVESTIGATION FOR RANCHO CARRILLO .
PROjECT -MAJOR ROADS, CARLSBAD, CALJFO~NIA, . .'
PREPARED BY GEOCON INCORPORATED, DATE:D JANUARY 15,
1993 (PROJECT NO. 04787-12-01).
FOR
VILLAGES OF LA COSTA -THE GREENS
CARLSBAD, CALIFORNIA
PROJECT NO. 06403-12-03
'.
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" ?ROJECT NO. 04787-12-01 I:' ,:'
DEPTH SAMPLE
II IN NO. FEET
>-C!l 0 SOIL .J 0 CLASS ::J: I-(USCS) 1-4 ,..,l
Ir 0
CL "I[ 2
"I~ 4 CL
-6 Ir. 8
BORING SBM 10
ELEV. (MSL) 111 DATE COMPLETED
EQUIPMENT MAYHEW 1QOO ROTARY
MATERIAL DESCRIPTION
Firm, damp, dark brown, Sandy CLAY
Firm, wet, dark brown, Sandy CLAY
-Water table after stabilizing at 4 feet
Zw'" 0(.) •
I-4 z l-1-<t1L. <tl-' tI:(/)(/) 4/27/92 1-1-4 3 w(/)o zw.J ~tl:S
3
>-..... t:;", w~ a: ..... U'I • :z:1L. :::ll-w • I-z c~ (/)lI.l 1-41->-~ Oz 0:'" 2:0
C 0
I 10 ~~~--I-------~--------------------------------------I---~~~~~~~~"
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12
14
16
18
20
22
24 "
26
28 "
CL-SC
SC
sp-SC
Becomes loose, saturated, light brown, fine
Clayey SAND and Sandy CLAY
-Becomes very light brown with lenses of
slightly clayey sand at 15 feet
- - - -ifecomes medfuin-dense: saturared,-lIght brown~ ---
medium to coarse, slightly clayey SAND to
Clayey SAND
10
I:-::,~igure A-iS Log of Boring SSM 10, page 1 of 2 CRDR
.:j!lSAMPLE SYMBOLS 0 ... SAMPLING UNSUCCeSSFUL IJ ... STANDARD peHeTRATION TEST •••• DRIve SAMPLE (UNDISTURBED)
I"" ~ ... DISTURBED OR BAG SAMPLE ri2I ••• CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TRENCH LOCATION AND AT THe
DATE INDICATED. IT IS NOT WARRANTED TO Be REPRESENTATIve OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES.
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PROJECT NO. 04787-12-01
DEPTH
IN
FEET
30
32
34
36
38
40
42
44
46
SOIL
CLASS
(USCS)
CL
BORING SSM 10
ELEV. (MSL) 111 DATE COMPLETED
EQUIPMENT MAYHEW 1000 ROTARY
MATERIAL DESCRIPTION
Very stiff, saturated, green, Sandy CLAY
-Becomes gravelly at 32 feet
z LU-"" )-" 0 0 0 1-,.. w~ HZI-104 0 11:'" I-<tu. til II. :::l ... ¢I-' ffi 0 1-% I1:tII U'l 4/27/92 1-104::3 c,o U'lw 0 104 ... !M til 5-)-£1. 0%
WWIXI '0: .., l:c Il.c:: .... C 0
~~~~----~--------------------------------------I--~~------~---~
GC
Very dense, saturated, yellowish brown,
Clayey SAND and gravel
~~~~---4--------------------------------------l----~------r-----Becomes very dense, green. Sandy CLAY
GC with gravel and cobbles
BORING TERMINATED AT 46.5 FEET
REFUSAL
.' ~;;:::~-S~:Bo~sOgD ~~. ~:~il~~UN~~~~LO. p;~~. ~'A::': PeNE'RA'IOH TEST •••• DRIV! ,,"PLE (UNOlsruUE:"'
I ' ~ ... DISTURBED OR BAG SAMPLE ~ "0 CHUNK SAMPLE ~ ••• WAT!!R TABLE OR S,EEPAGE'
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORI'NG OR TRENCH 'LOCATION AND AT THE
nAT= Tunl~AT=n IT T~ ijnT UA~~ANT~n Tn B~ R~~R~S~UTATIV~ n~ SUBSURFAC~ CONDITIONS AT OTHER LCCAf.IONS AND TIMES.
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, PROJECT NO.
I::·:·:·
DEPTH I F~~T
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2
4
6
8
SAMPLE
NO.
04787-12-01
SOIL
CL
CL
BORING SBM 11
ELEY .. (MSL) ~l..;;;..lO~_DA TE COMPLETED 4/28/92
EQUIPME~T MAYHEW 1000 ROTARY
MATERIAL DESCRIPTION
Fir;n, damp, yellowish brown, Sandy eLA Y
with desiccation cracks
Stiff, moist, yellowish brown mottled,
Sandy CLAY
15 111.1 19.0
I 10 ~~~~----+--------------------------------------~~-+----~--~
I 12
I 14
II 16
I 18
20
I 22
I 24
I 26
'I 28
SBMII -3 .
Becomes alternating stiff, yellowish brown
CL Sandy CLAY and medium dense, brown,
Clayey SAND
~~~~----+--------------------------------------~~-+~~~~~
SP-SC
CL
Becomes loose to medium dense, saturated,
yellowish brown mottled, fine to medium,
Clayey SAND alternating with slightly
clayey SAND, with little gravel
32
I ... ~igure A-17 Log of Boring SSM 11, page 1 of 2 CROR
~~;~~::::. SAMPLE SYMBOLS D ... SAMPl.ING UNSUCCESSFUL IJ ... STANDARD PENeTRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)' I I ~ .. , DISTURBED OR BAG SAMPLE ~ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGe
NOTE: THe LOG OF SUBSURFAce CONDITIONS SHOYN HEReON APPLIES ONLY AT THE speCIFIC BORING OR TRENCH LOCATION AND AT THE, _~ __ .... ___ .. ___ .. ___ .. __ .... __ •.. ___ .. _ ......................... _ ••••. ___ ..... __ ........... ,; ""_ ... _ .... _ ......... ""."e" .'''''' ..... '''.11fII .-'1'" "'Ue'f.','
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PROJECT NO. 04787-12-01
= .•.... ~ >-C!l 0 DEPTH SAMPLE .J SOrL
IN 0 ~ CLASS . NO. I:
FEET I-~ (uses) 1-4
.J
-30 l~tlMll l / ~ ---6 :;. CL-SC ;' ~ -32 -;-~ --;., ~ r-34 -:.
~ .
r--SBM.l I :::. r-36 --,7 SP-SC I : : ..
r--. : :. : :.
'-38 -:; :
>"~ .
'--:;' CL
'-40 -SBMll I :;' :; ---8 :;-
-42 -{ -';.
r-44 -,;.
:.'
r--ISB~ I I .;,?, .
r-46 -~ CL ~ r--~
~ 48 -.~
~ -CL
~ 50 -SBMll r - -
-10
BORING SSM 11 . :z:. .... >-" ow. t:; .... . UI ~ !-lUI-I-Zu. (0', • a::"'
<r<C' ZII.. :JI-tt:I-(O UI • 1-% ELEV. (MSL) 110 DATE COMPLETED 4/28/92· I-Ul 3 cC: (0111 WHO >-0. 1-41-ZUl.J 0%
EQUIPMENT MAYHEW 1000 ROTARY WWIIl a:'" I:o o.a:..., c CJ
MA TERIAL DESCRIPTION
.j!
Becomes alternating of green mottled, fine to .,...
medium Clayey SAND and very dark brown,
Sandy CLAY -
-
--
--------------------------------------
Becomes medium dense, saturated, gray, fine LoU LUj.4 z:u
l-to medium slightly clayey SAND with carbon
flecks and fine voids; more clayey in places I-
WEATHERED DELMAR FORMATION I-Dense, wet, light green mottled, Clayey
SAND and grayis~ brown, Sandy CLAY I-37
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-
-
-Becomes very stiff, wet, light green with -30 107.3 21.7 dark red staining, slightly sandy CLAY,
fractured with trace of fine gravel .1-
I-
DELMAR FORMA nON
Hard, moist, light green, slightly sandy -r-
CLA Y with trace of fine gravel I-46
:....
BORING TERMINATED AT 51.5 FEET
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I ... : ... ~igure A-1S.' Log of Boring SSM 11, page 2 of 2 '. . CROR
??if SAMPLE SYMBOLS 0 ... SAMPLING UNSUCCESSFUl. 11 ... STANDARD PENETRATION TEST •••• DRIve . SAMPLE (UNDISTURBED) I ~ ... DISTURBED OR BAG SAMPLE Pa ... CHUNK SAMPLE J ... WATER TABLE OR SEEPAGE
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEReON APPLIes ONLY AT THE SPECIFIC ·BORING OR TRENCH LOCAT-ION AND AT THE -. -.--_ ... _ .. -.. --_ •. _-1_ ............. ,'" .&." ........ ~eo
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.I,;,;:~OJECT NO.
:}:~EPTH
IN SAMPLE
04787-12-01
D: >-w Cl I-0 <t SOIL ..J :3
BORING 8M 34 %w ..... )-,..
o CJ • 1-,.. w~ HZI-H • 0::'" 1-<t1L. UlIL. ::JI-<tl-' .Z • I-Z I
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·NO. FEET
C!J Q CLASS D:UlUl wc,) :z:: Z ELEV. (MSL) 210 DA TE COMPLETED 1/15/92 I-H:3 Q • ~IU I-:J (USCS) w 0 01-H 0 ZUl..J )-£l. ::z ..J 0: EQUIPMENT E-100 BUCKET RIG. WWIIl 0: .... 0 C!l Il. 0: ..... Q CJ
MA TERIAL DESCRIPTION
': .'
-0
-
r-2
I-4 -
-~! I ::
-BM34 J;~ ~ "
--1 ':; ': .'
SM DELMAR FORMA nON r-
Dense, damp, light to orange-brdwn, Silty,
fine SANDSTONE r-2
~
110.9 6.7
-
-BM34 ~"*'.~'~'i=~=~ -1.5 x 1 foot highly cemented concretion
I-6 --2 ~ '1 in south side boring at 5 feet I __
r-4
f--' ML
f-8 -f.tIo<Io~l--I----+.
1 -Sharp irregular, near horizontal contact I ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --! --Dense, damp, light green~ Clayey .r----~r_--~----,
-,: ,; ~ " SM 1 SIGL TSTqNE; thinly bedded ~ ........ +-+-_-; I -radatlonal contact I ~----1I-----fo---~ \ I
r-
CL
... 10 -BM34 " . - - --6ense~ damp, -lIght to-medium b.rown~ Silty,-- - --. - 7
_ _ -3 ~';;;:;' ~L+---l fine to medium SANDSTONE; several I to 2
: :'~ inch interbedded green claystone lenses
:; i :: SM with orange oxide : ; j -1 x 1.5 foot highly cemented concretion
: :; " at 9 feet
, : , -10 inch x 2 foot highly cemented
l i[l :: -~~~~i~~~:sl ~~llf~~~ented from 12 to
t-I~.;j,;/,,;I..j.:. oI--l-----r. 13-3 feet with shells
: -Becomes fine to coarse at 14' feet
-12 -
-16 -BM34
122.1 12.8
-
---4
-18 -
\ -Irregular near horizontal contact
:~. 5
; -n~~:or.i--+--+,I.,-- --s"tif'{ to -Y-ery-stiff, -dlunp,-llght green, ---------.. '~----11----+---~ r~ : i II -Sandy CLAYStONE; gypsum fracture fillings, I
': " SM! orange oxide staining : ~
20 I -Gradational contact I '-- -BM34 ::: I 1;-5
--
123.9 7.6
r---5 ::i" ·----J5ense~damp,-lfghtgrayto-iig-htgreen,--------·-
I-22 _ B~l4 ':! 1" ~ Silty, fine to coarse SANDSTONE: massive
: i! i i . -Sharp, slightly irregular, near
: 24 ~ B~14 .(;~t=~~~r--r----r\ _____ h_o~i~o_n~a~ ~~~t~c~ _____________ :. _. _____ ! roo 4
~ ~ CL Very stiff, damp to moist, light green,
I-26 -[;:=::; Silty CLAYSTONE; moist along contact roo ~ ;::' at 24 feet, thinly bedded with orange
I-
I-
-
--
-:nr'E '1 oxide along bedding . ,-~li~lf~;I~ SM I -Irregular, near horizontal contact , Froo---l---+---~~~~-t---+~._ - --I5ense~ Ciamp,-IIght griy,-S11ty~ trne to' - - - - - - - -f f-
I-28 -
-~ CL I I medium SANDSTONE 1
Figure A-86 Log of -Boring 8M 34, page 1 of 2 CROR
) SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL
~ ••• DISTURBED OR BAG SAMPLE
IJ ... ~STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE ::!: ••• \lATER TABLE OR SEEPAGE =
NOTE: 'THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR TR;NCH LOCATION AND AT THE
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I Ii PROJECT NO 04787-12-01
;1;~~~ a: ..
BORING BM 34 :z:w ..... )0 " )0 lLJ °0· 1-,.. w~ '~i;\EPTH C!l I-H:z:1-H • 0:'"'
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0 ~ SOIL I-~u. enU. ::ll-SAMPLE .J ':3 ~I-~ :z: • IN 0 c CLASS Wo I-z NO. :t z: ELEV. (MSL) 210 DA TE COMPLETED 1/15/92 I-Ul:3 c . Ul W FEET I-::l (USCS) WHO 1-11-
1-1 0 :z: en . .J )oil. Qz .J a: EQUI~MENT E-IOO BUCKET RIG WW nl 0: ..... ....0
C!l 1l.0:..., C (;
I MA TERIAL DESCRIPTION ... 30 ~M_j4 ;"Sharp Irregular contact N.l.t., oN W I 'i 1Uj,4 10.0 I
--8 I I -. - - - -:[/8 -to' Ij4-fnch-moisf to -damp-clay -at co-ntact --, -BM34 CL -32 --9 I Very stiff to hard, damp to moist, dark -
-' -green eLA YSTONE; micaceous from 28.2 to ~ 32 feet, thinly bedded below 32 feet
-34 --Gradational contact .~ , , . : ( --BM341:~ : ' ' ~-------------~--------~-------------, ~
" , Dense, damp, hght green to lIght brown, 9
-36 --10 .:! : i
SM Silty, fine to medium SANDSTONE; . ~ . : ' ' massive with abundant cross bedding,
I--: ~ ; ': ~ orange oxid'e staining ...
I-38 -: ~ ;'.: ~ -Becomes fine to coarse at 36 feet
.:; ':: -Cross beds NlOW, 15SW at 37 feet -
1-. -: ! : . ~ 1 l-
I-40 '" BM34'1
: .. : -8
I---11 . ' -
I-42 --8 inch thick continuous highly weathered -, ' concretionary bed at 42 feet; irregular
'--shape, some dark brown clay developed l-
) from weathering within the concretion, , .' 44 -clay not continuous r-
, '
I--BM34 I .. I-3 115.3 15.3
I-46 _I?
BORING TERMINATED AT 46 FEET
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Figure A-87 Log of Boring BM 34, page 2 of 2 CRCR
) SAMPLE SYMBOLS 0 ... SAMPL'ING UNSUCCESSFUL
~ ~ '.' DISTURBED OR BAG SAMPLE
IJ ... STANDARD PENETRATION TEST. II ... DRIVE SAMPLE (UNDISTURBED)
~ ••• CHUNK SAMPLE . ~ ••• IIATER .TABLE OR SEEPAGE =
NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOIIN HEREON APPLIES ONLY AT THE SPECIFIC BORING OR. TRENCH LOCATION AND AT THE
~ ~-. -._ ----•• __ .. --__ •• __ • __ .. ___ ••• AU,.. •••• ,. ...
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APPENDIX E .. I· . ..
SLOPE STABILITY ANALYSES' ..
I·' for
I-VIL~AGES OF LA COSTA -THE GREENS' .
CARLSBAP; CALIFORNIA I-.
PROJECT NO. 06403-12-03
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-.. - -.-.-- -_.:-- - --. - - - -.--
Project No. 06403-12-01
.-... 300 ¢: ......... 280 c: o 260 +' ro 240 > ~ 220
W 200
o 50
Village of La Costa -Greens
Cut Slope 1.
1.871 • PL
100 ·150 200 250 300' 350 : 400 450 500
Distance (ft)
Description Unit Weight: Friction Angle Cohesion
. (pst) (pet) (degrees)
Qcf 130 25 300
Ts 130 30 300
B.P.S .. 130 10 100
~--
. File Name: La Costa GreensWLC1.slp Figure E-2
.... -.. -_:.--.-_.:-:-- - - --.----
Project No. 06403-12-01
...-
¢:! 280 '-'" .
C 260
0.· 1ii 240
~ 220
ill 50
Village of La Costa -Greens
Cut Slope 2
100 . 150 200
2.278 •
Ocf I
250 300. 350
Distance (ft)
400 450 ·500
De,scription Unit Weight Friction Angle . Cohesion
(pet) (degrees) (pst)
Qcf 130 25 300
Ts 130 30 -300
B.P.S. 130 10 100
File Name: La Costa Greens\VLC2.slp Figure E-3 .
------.------~--~~--
Project No. 06403-12-01
-200 4:::!
---180 c:: o 160
10 140
fD
W
50
Village of La Costa -Greens
Cut Slope 3
2.167 •
100 150 200 250 300 ~50 400 450 500
Distance (ft)
Description I Unit Weight I Friction Ang't Cohesion
(pet) (degrees) (pst)
Ocf 130 25 300
n· 130 30 . 300
B.P.S. 130 10 100
File Name: La Costa Greens\VLC3.slp
~
Figure E-4 .
'I
- - - - -... - -.-:-- - - - - -.-. -.-
Project No. 06403-12-01
......... ~
c o :p
(\1 > Q)
LU
Village of La Costa -Greens
Cut Slope 4
1.797 •
50 100 150 200 250 300 350 400 450 500 550
'.
Distance (ft)
Description Unit Weight Friction Angl ~ Cohesion . (pet) . (degrees)· (pst) .
Ts 130 30 300
Fault 130 10 100
File Name: La Costa Greens\VLC4.slp
~
Figure E-5
"--.--.-- -.-- -.-- - - -.-- -.-
Project No. 06403-12-01
---200 .¢:!
'-" 180 c: o 160
~ 140 > Q) 120
ill 100 o 50
Description
Qcf
Ts
B.P.S.
Village of La Costa -Greens
Cut Slope 5
100 150 200 250 300 350
Distance (ft)
Unit Weight 'Friction Angl ~ Coh.e~ion
(pcf) . (degrees) (psf)
130 25 300
130 .' . 30 300.
130 10 100·
1.731 •
File Name: La Costa Greens\VLC5.slp
~
Figure-E-6
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I APPENDIX F
I RECOMMENDED GRADING SPECIFICATIONS
for
I' ' ,
" VILLAGES 'OF LA COSTA -THE GREENS,
I CARLSBAD, CALIFORNIA
1-PROJECT 'NO. '06403-12-01
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1.1.
1.2.
1.3.
2.1.
2.2.
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2.3.
RECOMMENDED GRADING SPECIFICATIONS
1. GENERAL
These Recommended Grading Specifications shall be used in conjunction with the
Geotechnical Report for the project prepared by Geocon .Incorporated ... The. recom-
mendations contained in the text of the Geotechnical Report are a part of the earthwork and
grading specifications and shall supersede the provisions contained hereinafter in the case
of conflict.
"
Prior to the commencement of grading, a geotechnical consultant (Consultant) .shall be
employed for the purpose of observing, earthwork procedures and te~g the fills for
substantial conformance with the recommendations of the .Geotechnical Report and these
specifications. It will be necess~ that the Consultant provide adequate testing and
observation services so that he may determine that, in his opinion, the work was performed
in substantial conformance with these specifications. It shall be the responsibility of the
Contractor to assist the Cqnsultant and keep him apprised of work schedl,lles and changes
so that personnel may be scheduled accordingly.
It shall be the sole responsibility of the Contractor to provide adequate equipment and
metho~s to accomplish the work in accordance with applicable grading codes or agency
ordinances, these specifications and the approved grading plans. If, in the op~ion. of the
Consultant, unsatisfactory conditions such as questionable soil materials, poor' m6~st~re
condition, inadequate compaction, adverse weather, and so forth, result in a quality .of work
not in conformance with these specifications, th~ Consultant will be empowered to reject
-the work and recommend to the Owner that construction be stopped until the unacceptable
conditions are corrected.
2. DEFINITIONS
Owner shall refer to the owner of the property or the entity on whose behalf the grading . ........
work is being performed and who has contracted with the Contractor to have grading
performed.
Contractor shall refer to the Contractor performing the site grading work.
Civil Engineer or Engineer of Work shall refer to the California licensed Civil Engineer
or conSUlting firm responsible for preparation of the grading plans, surveying and verifying
as-graded topography.
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2.4.
2.5.
2.6.
2.7.
3.1.
Consultant shall refer to the soil engineering and engineering geology consulting firm
retained to ~rovide geotechnical services for the project
SQil Engineer shall refer to a California licensed Civil Engineer retained by the Owner,
who is experience~ in the practice of geotechnical engineering. The Soil Engineer shall.be
responsible for having qualified representatives on-site to observe and test the Contractor's
work for confonnance with these specifications.
Engineering Geologist shall refer to a California licensed Engineering Geologist retained
by the Owner to provide geologic observations and recommendations durirtg the site
grading.
Geotechnical Report shall refer to a soil report (including all addenda) which may include
a geologic reconnaissance or geologic investigation that was prepared specifically for the
development of the project for which these Recomm~nded Grading Specifications are
intended to apply.
3. MATERIALS
Materials for compacted fill shall consist of any soil excavated from the cut areas or
imported to the site that~ in the opinion of the Consultant, is suitable for us~ in construction
of fills. In general, fill materials can be classified 8.:S soil fills, soil-rock fills or rock fills, as
defmed below.
3.1.1. Soil fIlls are defmed as fills containing no rocks. or hard lumps greater than 12
inches in maximum dimension and containing at least 40 percent by weight of_
material smaller than 3/4 inch in size.
3.1.2. Soil-rock fIlls are defined as fills containing no rocks or hard lumps larger than 4
feet in maximum dimension and containing a sufficient matrix of soil fIll to allow
for proper compaction of soil fill around the rock fragments or hard lumps as
specified in Paragraph 6.2. Oversize rock is defmed as material greater than 12
inches.
3.1.3. Rock fills are defined as fills containing no rocks or hard lumps larger than 3 feet
in maximum dimension and containing little or no fmes. Fines ,are defined as
material smaller than 3/4 inch·.in maximum dimension. The quantity of fines ~hall
. be less than approximately 20 percent of the rock fill quantity.
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3.2.
3.3.
3.4.
3.5.
3.6.
4.1.
Material of a perishable, spongy, or otherwise unsuitable nature as determined by the
Consultant shall not be used in fills.
'. ,' ...... "
Materials used for fiU, either imported or on-site, shall not contain hazardous materials as
defined by the California Code of Regulations, Title 22, Division 4, Chapter 30, Articles 9
and 10; 40CFR; and any other applicabl~ loca~ state or federal laws. The Consultant shall
not be responsible for the identification or analysis of the potential presence of hazardous
materials. However, if observations, odors or soil discoloration cause Consultant to
suspect the presence of hazardous materials, the Consultant may request from the Owner .
the tennination of grading operations within the affected area. Prior to resuming grading
operations, the Owner shall provide a written report _to the Consultant indicating that the
suspected materials are not hazardous as defined by applicable laws and regulations.
The outer 15 feet of soil-rock fill slopes, measured horizontally, should be composed of
properly compacted soil fill materials approved by the Consulta.nt. Rock fill may extend to
the slope face, provided that the slope is not steeper. than 2:1 (horizontal:vertical) and a soil
layer no thicker than 12 inches is track-walked onto the face for landscaping purposes.
This procedure may be utilized, provided it is acceptable to the governing agency, Owner
and Consultant.
Representative samples of soil materials to be used, for fill shall be tested in the laboratory
by the Consultant to detennine the maximum density, optimum moisture content, and,
where appropriate, shear strength, expansion, and gr,adation characteristics of the soil.
During grading, soil or groundwater conditioIls other than those identified in the
Geotechnical Report may be enco_untered. by the Contractor. The Consultant shall be
notified immediately to evaluate the significance of the unanticipated condition
4. CLEARING AND PREPARING AREAS TO BE FILLED
Areas to be excavated and filled shall be cleared' and grubbed: Clearing shall consist of
complete removal above the ground surface oftrees~ stumps, brush, vegetation, man-made
structures and similar debris. Grubbing shall COtilsist of removal of stumps, roots, buried
logs and other. unsuitable material and shan be perfQnned in areas to be graded. Roots and·
other projections exceeding 1-112 inches in diameter shall be removed to a depth of 3 feet
below the surface of the ground. Borrow areas shaU be grubbed to the extent necessary to
provide suitable fill materials. (
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4.2.
4.3.
4.4.
Any asphalt pavement material removed during clearing operations should be properly
disposed at an approved off-site facility. Concrete fragments which are free of reinforcing
steel may be placed in fills, provided they are placed in accordance with Section 6.2 or 6.3
of this document.
After clearing and grubbing of organic matter or other unsuitable material, loose or porous
soils shall be removed to the depth recommended in the Geotechnical Report. The depth of
removal and compaction shall be observed and approved by a representative of the
Consultant. The exposed surface shall then be plowed or scarified to a minimum depth of
6 inches and until the surface is free from uneven features that would tend to prevent
uniform compaction by the equipment to be used.
Where the slope ratio of the original ground is steeper than 6: 1 (horizontal:vertical); or
where. recommended by the Consultant, the original ground should be benched in
accordance with the following illustration.
TYPICAL BENCHING DETAIL
Finish Grade
Remove All
Unsuitable Material
As Recommended By
Soil Engineer
DETAIL NOTES:
Slope To Be Such That
Sloughing Or Sliding
Does Not Occur
Finish Slope Surface
See Note 2
No Scale
(1) Key width ''E" should be a minimum of 10 feet wide, or sufficiently wide to
permit complete coverage with the compaction equipment used. The base of the
key should be graded horizontal, or inclined slightly into the natural slope.
(2) The outside of the bottom key should be below the topsoil or unsuitable surficial
material and at least 2 feet into dense formational material. Where hard rock is
exposed in the bottom of the key,. the depth and configuration of the key may be
modified as approved by the Consultant.
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4.5.
5.1.
5.2.
6.1.
After areas to receive fiU have been cleared, plowed or scarified, the surface should be
disced or bladed by the Contractor until it is unUonn and free from large clods. The area
should then be moisture conditioned to achieve the proper moisture content, and compacted
as recommended in Section 6.0 of these specifications.
5. COMPACTION EQUIPMENT·
Compaction of soil or soil-rock fill shall be accomplished by sheepsfoot or segmented-steel
wheeled rollers, vibratory rollers, multiple-wheel pneumatic-tired rollers, or other types of
acceptable compaction equipment. Equipment shall be of such a design th~t it will be
capable of compacting the soil or soil-rock fill to the specified relative compaction at the
specified moisture content.
Compaction of rock fill.s shall be, performed in accordance with Section 6.3.
6. PLACING, SPREADING AND COMPACTION OF FILL MATERIAL
Soil fill, as defmed in Paragraph 3.1,1, shall be placed by the Contractor in accordance with
the fo Hawing recommendations:
6.1.1. Soil fill shall be placed by the Contractor in layers that, when compacted, should
generally not exceed 8 in~hes. Each layer shall be spread evenly and shall be
thoroughly mixed during spreading to obtain uniformity of matenal and moisture
in each layer. The entire fill shall be constructed as a unit in nearly levellifts.
Rock materials greater than 12 inches in maximum dimension shall be placed in
accordance with Section 6.2 or 6.3 of these specifications.
6.1.2. In general, the soil fill shall be compacted at a moisture content at or above the'
optimum moisture content as determined by AS1M D1557-91.
6.1.3. When the moisture content of soil fill is below that spe~ified by the Consultant,
water shall be added by the Contractor until the moisture content is in the range
specified.
6.1.4. When the moisture content of the soil fil~ is above the range specified by the
Consultant or too wet to achieve proper compaction, the soil fill sh211 be aerated by
the Contractor by bl~dinglmixing, or other satisfactory m~thods until the moisture
content is within the range specified.
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6.2.
6.1.5. After each layer has been placed, mixed, and spread evenly, it shall be thoroughly'
compacted by the Contractor to a relative compaction of at least 90 percent.
Relative compaction is defined as the ratio (expressed in percent) of the in-place
dry density of the compacted fill to the maximum laboratory dry density as
determined in accordance with ASTM D1557-91. Compaction shall be continuous
over '¢e entire area, and compaction equipment shall make sufficient passes so that
the specified minimum relative compaction has been achieved throughout the
entire fill.
" 6.1.6. Soils having an Expansion Index of greater than 50 may be used in fills if placed at
least 3 feet below finish pad grade and should be compacted at a moisture content
generally 2 to 4 percent greater than the optimum moisture content for the material.
6.1.7. Properly compacted soil fill shall extend to the design surface of fill slopes. To
achieve proper compaction, it is recommended that fill slopes be over-built py at
least 3 feet and then cut to the design grade. This procedure .is considered
preferable to track-walking of slopes, as described in the following paragraph.
6.1.8. As an alternative to over-building of slopes, slope faces may be back-rolled with a
heavy-duty loaded sheepsfoot or vibratory roller at maximum 4-foot fill height
intervals. Upon completion, slopes should then be track-walked with a D-8 dozer
or similar equipment, such that a dozer track covers all slope surfaces at le~st
twice.
Soil-rock fill, as defmed in Paragraph 3.1.2, shall be placed by the Contractor in accordance
with the following recommendations:
6.2.1. Rocks larger than 12 inches but less than 4 feet in maxnnum dimimsion may be
incorporated into the compacted soil filJ, but shall be limited to the area measured
15 feet minimum horizontally from the slope' face and 5 feet below finish grade or
3 feet below the deepest utility, whichever is. deeper.
6.2.2. Rocks or rock fragments up to 4 feet in maximum dimension may either be
individually placed or placed in windrows. Under certain conditions, rocks or rock
fragments up to 10 feet in maximum dimension may be placed using similar
methods. The acceptability of placing rock materials greater than, 4, feet in
maxunum dimension shall be evaluated during grading as specific cases arise and -
shall be approved by the Consultant prior to placement.
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6.3.
6.2.3.· For individual placement, sufficient space shall be provided between rocks to allow
for passage of compaction equipment.
6.2.4. For windrow placement, the rocks should be placed in trenches excavated in
properly compacted soil fill. Trenches should be approximately 5 feet wide and 4
feet deep in maximum dimension. The voids around and beneath rocks should be
filled with approved granular soil having a Sand Equivalent of 30 ~r greater and
should be compacted by flooding. Windrows may also be placed utilizing an
"open-face" method in lieu of the trench procedure, however, this method should
first be approved by the Consultant.
6.2.5. Windrows should generally be parallel to each other and may be placed. either
parallel to or perpendicular to the face of the slope depen~ing on the site
geometry. The minimum horizontal spacing for windrows shall be 12.feet
center-to-center with a 5-foot stagger or offset from lower courses to next
overlying course. The minimum vertical spacing between windrow courses shall
be 2 feet from the top of a lower windrow to the bottom of the next higher
windrow.
6.2.6. All rock placement, fill placement and flooding· of approved granular soil in the
windrows must be continuously ·observed by the Consultant or his representative.
Rock fills, as defmed in Section 3:1.3., shall ~e placed by the Contractor in accordance with
the following recommendations:
6.3.1. The base of the rock fill shall be placed on a sloping surface (minimum slope of 2
percent, maximum slope of 5 percent). The surface shall slo.pe toward suitable
subdrainage outlet facilities. The rock fills shall be provided with subdrains during
construction so that a hydrostatic p~essure buildup does not develop. The
sub drains shall· be pennanently connected to controlled drainage faciliti.es to
control post-construction infiltration of water.
6.3.2. Rock fills shall be placed in lifts not exceeding 3 feet. Placement shall be by rock
trucks traversing previously placed lifts and dumping at the edge of the currently
placed lift. Spreading of the rock fill shall be by dozer to fa,cilitateseating of the
rock. The rock fill shall be watered heavily during placement. Watering shall
consist of water trucks traversing in front of the current rock lift face and spraying
water continuously during rock placement. Compaction equipment with
compactive energy comparable to or greater than that of a 20-ton steel vibratpry
roller or other compaction equipment providing suitable energy to achieve the
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required compaction or deflection as recommended in Paragraph 6.3.3 shall be
utilized. The number of passes to be made will be determined as described in
Paragraph 6.3.3. Once a rock fill lift has been covered with soil fill, no additional
rock fill lifts will be permitted over the soil fill.
6.3.3. Plate bearing tests, in accordance with ASTM D1196-64, may be performed in
both the compacted soil fill and in the rock fill to aid in determining the number of
passes of the compaction equipment to be performed. If performed, a minimum of
three plate bearing tests shall be performed in the properly compacted soil fill
(minimum rel~tive' compaction of 90 percent). Plate bearing tests shall then be
performed on areas of rock fill having two passes, four passes and ~ix passes of the
compaction equipment, respectively. The number of passes required' for the rock.
fill shall be determined by comparing the results of the plate bearing tests for the
soil fill and the rock fill and by evaluating the de:flec~on variation with number of
passes. The required numper of passes of the compaction equipment will be
performed as necessary until the plate bearing deflections are equal to' or less than
that determined for the properly compacted soil fill. In no case will the required
number of passes be less than two.
6.3.4. A representative of the Consultant shall be present during rock fill operations to
verify that the minimum number of "passes" have been obtained, that water is
being properly applied and that specified procedures are being followed. The
actual number of plate bearing tests will be determined by the Consultant' during
grading. In general, at least one test should be performed for each approximately
5,000 to 10,000 cubic yards of rock fill placed.
6.3.5. Test pits shall be excavated by the Contractor so that the Consultant can state that,
in his opinion, sufficient water is present and that voids between large rocks are
properly filled with smaller rock mat~rial. In-place de~sity testing will not be
required in the rock fills.
6.3.6: To reduce the potential for "piping" of fmes into the rock fill from overlying soil
fill material, a 2-foot layer of graded fIlter material shall be placed above the
uppermost lift of rock fill. The need to place graded filter material below the rock
should be determined by. the Consultant prior to commencing grading. The
gradation of the graded fIlter material'will be'detennined at the time th~ rock fill is
being excavated. Materials typical of the rock fill should. be submitted to the
Consultant in a timely manner., to allow design of the graded filter prior to the
commencement of rock fill placement.
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7.1.
7.2.
7.3.
7.4.
6.3.7. All rock fill placement shall be continuously observed during placement by
representatives of the Consultant.
7. OBSERVATION AND TESTING
The Consultant shall be the Owners representative to observe and perform tests during
clearing, grubbing, filling and compaction operations. In general, no more than 2 feet in
vertical elevation of soil or soil-rock fill shall be placed without at least one field density
test being performed within that interval. In addition, a minimum of one field density test
shall be performed for every 2,000 cubic yards of soil or soil-rock fill placed and
compacted.
The Consultant shall perform random field density tests of the compacted soil or soil-rock . .
fill to provide a basis for expressing an opinion as to whether the fIll material is compacted ,
as specified. Density tests shall be performed in; the compacted materials below any
disturbed surface. When these tests indicate that the density of any layer of fill or portion
thereof is below that specified, the particular layer or areas represented by the test shall be
reworked until the specified density has been achieved.
During placement of rock fill, the Consultant shaH verify that the minimum number of
passes have been obtained per the criteria discussed in Section 6.3.3. The Consultant shall
request the excavation of observation pits and may perform plate bearing tests on the
placed rock fills. The observation pits will be excavated to provide a basis for expressing
an opinion as to whether the rock fill is properly seated and sufficient moisture has been
applied to the material. If performed, plate bearing tests will be performed randomly on
the surface of the most-recently placed lift. Plate bearing tests will be performed to provide
a basis for expressing an opinion as to whether the rock fill is adequately seated. The
maximum deflection in the ro.ck fill determined in Section 6.3.3 shall be less than the
maximum deflection of the properly compacted soil fill. When any of the above criteria
indicate that a layer of rock fill or any portion thereof is below that specified, the affected
layer or area shall be reworked until the rock fill has been adequately seated and sufficient
moisture applied.
A settlement monitoring program designed by the Consultant may be conducted in areas of
rock fill placement. The specific design of the monitoring program shall be as'
recommended in the Conclusions and Recommendations section of the project
Geotechnical Report or in the final report of testing and observation services performed
during grading.
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7.5.
7.6.
8.1.
8.2.
The Consultant shall observe the placement of subdrains, to verify that the drainage devices
have been placed and constructed in substantial conformance with project specifications.
Testing procedures shall conform to the following Standards as appropriate:
7.6.1. Soil and Soil-Rock Fills:
7.6.1.1. Field Density Test, ASTM D1556-82, Density of Soil In-Place By the
Sand-Cone Method.
7.6.1.2. Field Density Test,.Nuclear Method, ASTM D2922-81, Density of Soil and
Soil-Aggregate In-Place by Nuclear Methods (Shallow Depth). .
7.6.1.3. Laboratory Compaction Test, AS'FM DI557-91, Moisture-Density
Relations of Soils and Soil-Aggregate Mzxtures Using lO-Pound Hammer
and l8-Inch Drop.
7.6.1.4. Expansion Index Test, Uniform Building Code Standard 29-2, Expansion
Index Test.
7.6.2. Rock Fills
7.6.2.1. Field Plate Bearing Test, ASTM Dl196-64 (Reapproved 1977) Standard
Methodfor Nonrepresentative Static.Plate·Load Tests of Soils and Flexible
Pavemen.t Components, For Use in Evaluation and Design of Airport and
Highway Pavements.
8. PROTECTION OF WORK
During construction, the Contractor shall properly grade all excavated surfaces to provide
positive drainage and prevent ponding of water. Drainage 'of surface water shall be
controlled to avoid damage to adjoining properties. or to finished work on the site. The
Contractor shall take remedial measures to prevent erosion of freshly.graded areas until
such time as permanent drainage and erosion cQntrol features have been installed. Areas
subjected to erosion or sedimentation shall be properly prepared in accordance with the
Specifications prior to placing additional fill ot structures.
After completion of grading as observed and tested' by the Consultant, no further
excavation or filling shall be conducted except in: c(;mjunction with the services of the
Consultant. .
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9.1.
9.2.
9. CERTIFICATIONS AND FINAL REPORTS
Upon completion of the work, Contractor shall furnish Owner a certification by the Civil
Engineer stating that the lots and/or building pads are graded to within 0.1 foot vertically of
elevations shown on the grading plan and that ail tops and toes of slopes are within 0.5 foot
horizontally of the positions shown on the grading plans. After installation of a section of
subdrain, the project Civil Engineer should survey its location and prepare an as-built plan
. of the subdrain location. The project Civil Engineer should verify the proper outlet for the
sub drains and the Contractor should ensure that the drai~ system is free of obstructions.
The Owner is responsible for furnishing a fmal as-graded soil and geologic report
satisfactory to the appropriate governing or accepting agencies. The as-graded report
should be prepared and signed by a California licensed Civil Engineer experienced in
geotechnical engineering and by a California Certified Engineering Geologist, indicating
that the geotechnical aspects of the grading were perfonned in substantial conformance
with the Specifications or approved changes to the Specifications.