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Home My WebLink AboutCT 05-05; LA COSTA GREENS NGBHD 1.16; UPDATE SOIL AND GEOLOGIC INVESTIGATION; 2001-06-25RECORD~P egJ _ . I D8 _ . \ at , Init1a UP OIL AND GEOLOGIC INVESTIGATION . :VILLAGES OF LA COSTA- THE GREENS CARLSBAD, CALIFORNIA .. VOLUMEIOFII RECEIVED JUL 25 2006 ENGINEERING DEPARTMENT PREPARED FOR REAL ESTATE COLLATERAL MANAGEMENT COMPANY c/o MORROW DEVELOPMENT INCORPORATED CARLSBAD, CALIFORNIA , PLAN CriECK NO.1 -. I L._ ---"" JUNE 25, 2001 I I I I I I I I I I I I I I I I I I I GEOCON INCORPORATED Project No. 06403-12-03 June 25, 2001 Real Estate Collateral Management Company Cia 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-O 1192 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 92121-297.4 • Telephone (858) 558-6900 • Fax (858) 558-6159 I I I I I I I I I I I I I. I' I I I I I 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 (J sp) ............................................................................................... 3 3.2 Santiago Fonnation (Ts) ........................................................................................................ 3 3.3 Lindavista F onnation (QIn) ................................................................................................... 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 ./ 5. GEOLOGIC HAZARDS .................................................................................................................. 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 6.5 Rippability of Hard Rock ..................................................................................................... 12 7. CONCLUSIONS AND RECOMMENDATIONS ......................................................................... 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 ........................................................................... i ................ 19 7.9 Slope Stability ...................... ~ ............................................................................................... 20 7.10 Foundation Recommendations ............................................................................................. 20 7.11 Retaining WaUs and Lateral Loads ...................................................................................... 24 7.12 Slope Maintenance ............................................................................................................... 25 7.13 Drainage ............................................................................................................................... 26 7.14 Plan Review ......................................................................................................................... 26 LIMITATIONS AND UNIFORMITY OF CONDITIONS I. I I I I I I I I I· I I I I I I I I I 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 INVESTIGATION 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-ISS, Logs of Air Track Borings APPENDIXB LABORATORY TESTING Table B-I, Summary of Laboratory Maximum Dry Density and Optimum Moisture Content Test Results Table B-TI, Summary of Laboratory Direct Shear Test Results Table B-lli, Summary of Laboratory Expansion Index Test Results APPENDIXC BORING AND TRENCH LOGS AND CONE PENETR011ETER TESTS FROM PREVIOUS INVESTIGATIONS APPENDIXD SELECTED BORING LOGS FROM RANCHO CARRILLO -MAJOR ROAD STUDY APPENDIXE SLOPE STABILITY ANALYSES Figure E-l, Geologic Cross Section (Map Pocket) Figures E-2 through E-6, Slope Stability Analyses APPENDIXF RECOM11ENDED GRADING SPECIFICATIONS I. I· I· I I I I I I I I I I I I I I I I UPDATE SOIL AND GEOLOGIC INVESTIGATION 1. PURPOSE AND SCOPE This report presents the consolidated findings 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). 2. 3. 4. 5. 6. 7. 8. 9. 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 1. 1. Eisenberg and P. K. Abbott, Eocene Geologic History San Diego Region, SEPM-GSA Fieldtrip Guidebook, 1991. Geologic Maps of the Northern part of San 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 Investigation, 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 of Site Improvements, Rancho Carrillo, Offsite 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 fum. Supplemental Soil and Geologic Investigation, Villages of 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 I· I· I I I I I I I I I I I I I I I I I 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 obtafued 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 (l "= 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 El 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, 2001 I I I I I I I I I I I" I I I I I I I I We understand that project development will consist of grading the site to form terraced and sheet- graded building pads that eventually will receive approximately 800 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 order of approximately 100 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 10, 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 previous 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 repert. 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 Project No. 06403-12-03 -3-June 25, 2001 I I I I I I, I~ I I I I I I I I I I I I claystone and siltstone portions of the Santiago Fonnation 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 grad~, special des~gn 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 Fonnation. 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 Li,ndavista Formation (Qln) The Quaternary-aged Lindavista Fonnation 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 nqrthwest margins of the site. These materials, possesing "very low" to "low" expansive characteristics, should provide good foundation-bearing characteristics in either an undisturbed and/or properly compacted condition. 3.4 Terrace Deposits (Qt) Stream-deposited terrace deposits were encountered to overlie the Santiago Fonnation, 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 u~ually weathered and more porous and, therefore, will require remediation prior to receiving any fill or settlement sensitive improvements. 3.4.1 Landslide Debris (Qls) 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 landslide debris will be necessary. One of the suficiallandslides is located along the northern property boundary and encroaches off-site. In the event the property boundary limits total remova~ the proposed cut slope will be stabilized by construction of a buttress fill. Project No. 06403-12-03 -4-June 25, 2001 I I I I I I I I I I. I I I I I I I 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 al1:uvium encountered onsite generally. consists of dark brown sandy clays to clayey sands. Within the major 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 Santiago 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 ~lluvium 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) Colluvial 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 composed of dark brown silty sands to sandy clays. The potential for both expansion and . consolidation indicate that the topsoil should be removed and recompacted as discussed in the Conclusions and RecommendatiQns section of this report. Project No. 06403-12-03 -5-June 25, 2001 I I- I I I I I I I I I I I I I I- I I I 3.8 Undocumented Fill (Qudf) At least two generations of fill are present on the site. The earlier fills consist of pond embankments or dams installed pre-1953 which are of unknown compaction and depth. The approximate areal extents are shown on the Geologic Maps. No trenches were performed in the embankment fills, but observation 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 ~d 6. 4. GROUNDWATER GroundwateLSeepage waS observed in the form of a spring within the canyon located at the southeast corner of the site. Numerous water seeps were encountered in the exploratory excavations along the northern and eastern boundary (see Boring Nos. LB-l~ LB-8, LB-13, LB-17 and LB-19 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 Forma~on or w~thin 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 surface may be responsible sources. Grading plans should consider the groundwater conditions to assure drainage features, e.g., canyon sub drains, drained stabilityibuttress fills, etc., are incorporated into the final design as appropriate. Due to the nature of the Santiago Formation, which consists of interbedded sandstone and claystone/siltstone, 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). The relationship between alluvial removals and Project No. 06403-12-03 -6-June 25,2001 I I I I I I I I I I I I I I I I· I I' I 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 HA2;ARDS 5.1 ' Faulting and Seismicity It is our opinion, based on the site reconnaissance, evidence obtained in the exploratory. excavation's and a review of published geologic maps and reports, that the site is not located on any. known 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 Caycine 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 ori Table 5.1 TABLE 5.1 DETERMINISTIC SITE PARAMETERS FOR SELECTED FAUL TS* Distance Maximum Credible Event Maximum Probable Event Fault Name 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 surrounding developments of similar geologic settings in the Carlsbad area. Project No. 06403-12-03 -7-June 25, 2001 I I· I I I I I I I· I I I. I.· I I I. 5.2 Liquefaction The potential for liqllefaction 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 fme- 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 fIll. Isol~ted 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 10 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 Geotech~ical Investigation UorJ Poinsettia Lane Between Stations 10+00 to 69+60. 6. GEOTECHNICAL LAND USE CHARACTERISTICS 6.1 General Based on fmdings of this study, there are three primary geotechnical considerations impacting the construction of the site as planne.d. 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 characteristics 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 fIll 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 I I I I I I I I I, I I I I I I I I I Slope stability analyses for these slopes have been performed utilizing' the parameters shown in Table 6.2.2.2. The results are presented in Appendix 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 th~ 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 discussion 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 I I I I I I I I I I I I I I' I I I I I TABLE 6.2.2.2 SOIL STRENGTH PARAMETERS Soil Type Angle of Internal Friction Cohesion q, (degrees) c (pst) 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 This 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-l presents a geologic cross section of the slope (K-K'). A bedding plane shear was encountered in Boring No. B-15 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 This 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-l). In addition, the eastern portion of this slope will be cut mto 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 mrodmum 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-1 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 postlon 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-1). The slope stability analyses Proj~ctNo. 06403-12-03 -10 -June 25,2001 I I I, I I I I I I, I' I I I I I I I I I 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 indicates the presence of a bedding plane shear at approximate elevation of 176 feet (MSL) (see Cross Section 00' on Figure E-1). Stability analrsis 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 from 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 Poinsettia 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 up to approximately 25 feet on the area just north of the road within the northeast l?ortion of the project site. The amount of estimated settlement, depending upon the specific locations, ranges from 2 to 8 inches. The majority of the settlement is anticipated to occur during construction. The post-construction settlement dependant on· the proposed fill 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 fill 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 25,2001 I I I· I I I I I I I I I I. I I I.· I I' I The removal and recompaction of the alluvial soils for the central portion of Poinsettia Lane 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 1 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 alignment. In certain areas, underlain primarily by alluvial soils, planned road way embankment grading will conflict with the alignme~ts of the existing sewer lines: It is understood that some of these 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 p0l'!i0n 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 grading 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. Tb.e 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 zones. Project No. 06403-12-03 -12-June 25, 2001 I I I I I I ,I I I I I I I I I I I I I 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 I I I I. I I I I I I I I· I I I I I I I 7.1 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 7.1.6 7.1.7 7. CONCLUSIONS AND RECOMMENDATIONS General No soil or geologic conditions were encountered during this irivestigation performed by Geocon, Incorporated or those previous studies referenced that would preclude the development of the property as presently planned, provid~d 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 groundwater. 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 withil1 the site possess a significant geotechnical consideration to development. Drained buttresses and stability fills will lJe required to stabilize slopes underlain by potentially unstable geologic features. Grading and installation 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. 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. Therefore, permission to grade off-site should be obtained. Furthermore, the remedial grading should consider future grading planned for the adjacent property. 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 I I I I' I I ,I I I I I I I I I I I I I 7.2 7.2.1 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 alluvial 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. 7.3 Soil Excavation Char~cteristics 7.3.1 Based on field observations and laboratory tests, the {>revailing soils are anticipated to vary from "very low" expansive sandy soils to "medium?' to "high" expansive silty clays. 7.3.2 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 I:Il1ticipate the need to dry back or mix with drier material prior to their use as compacted fill. 7.3.3 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 excavations 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. 7.4 Grading 7.4.1 7.4.2 All grading should be performed in accordance with the city of Carlsbad grading ordinance and the Recommended Grading Specifications contained in Appendix 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 preconstruction conference should be held at the site with the grading contractor, civil engineer and geotechnical engineer in attendance. Specified I soil handling and/or the grading plans can be discussed at that time. Project No. 06403-12-03 -15 -June 25, 2001 I· I I 1 I I I I I I. I I I I I I. 1 I 7.4.3 7.4.4 7.4.5 7.4.6 7.4.7 7.4.8 7.4.9 Site preparation should begin with the removal of all deleterious material and vegetation. The depth of removal should be such that material exposed in cut 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 (undocumented 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 alluviup1, 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 1:I(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 90mpacted 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 per,cent of maximum dry density at approximately 2 percent over optimum moisture content, as determined in accordance with ASTM test procedure D 1557-91. 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 -June 25, 2001 I I I I I I I I I I I I I I I I I I I 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 (qut 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 fmish grade. 7.5 7.5.1 7.5.2 7.5.3 7.5.4 Subdrains Subdrains should be installed in the canyons to be filled. A cross-section of the sub drain configuration is presented on Figure 14. The lower 20 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. In order to maintain a drainage gradient within the canyon sub drain 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 filllnatural ground contacts. Where the natural slope gradient exceeds 5 percent, the perforated pipe may be deleted from the subdrain system when recommended by the project soil engineer or geologist. Heel drains installed in the buttresses and stability fllis should be connected to the canyon subdrain or storm drain system where possible and have cleanouts installed where possible. After installation of the sub drains and heel drains, the project civil engineer should suryey its location and prepare "as-built" plans of the sub drain location. The 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 of obstructions. The recommended locations of the Project No. 06403-12-03 -17 -June 25, 2001 I I I I I I I I' I I I I I I I I. I I I 7.6 7.6.1 7.6.2 7.6.3 7.6.4 7.6.5 7.7 7.7.1 canyon sub drains will be finalized during a review of the fmal 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 maj ority of the settlement is expected to occur during the gradmg 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. Settlement monitoring will be required as discussed below to evaluate when the fill has stabilized and further improvements may proceed. 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 ~e determined after grading plans are fmalized. 7.7.2 At designated locations within the bottom of the over-excavated areas, a 4-foot-square, Yz- 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 Vertical), 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 1 1 I·· I I I I I I I I I I I I I I I I 7.7.3 7.7.4 7.8 7.8.1 Subsequent to placement of the planned embankment fill, including the surcharge (if recommended), Geocon, Incorporated will dp.ll and "tag" the steel plate. The civil engineer will then survey the plate to determine settlement which occurred during grading. 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. Bulking and Shrinkage Factors 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 the 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 ShrinkIBuIk 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 I I I I I I I I I I I I I I I I I I I 7.9 7.9.2 7.9.3 7.9.4 7.9.5 7.9.6 7.9.7 7.9.8 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. ~ (see Section 0.2). 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 engineering 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 offill slopes, measured horizontal to the 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-rolling 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 fmished slope. 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 I I I I I I I I I I I I I I I I I I I 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 final compaction report after the grading for the individual building pads has been completed. 7.10.2 Foundations for either Category 1, II, or ill may be designed for an allowable soil bearing pressure of 2,000 pounds per square foot (ps£) (dead plus live load). This be~g pressure may be increased by one-third for transient loads such as wind or seismic forces. TABLE 7.10.1 FOUNDAT,ION RECOMMENDATIONS BY CATEGORY Foundatio~ 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 ill 24 Two No,S 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 ill: 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 (including topsoil, 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 least 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. Project No. 06403-12-03 -21-June 25, 2001 I I I I I I I I I I I I I I I I I I I 7.10.3 The use of isolated footings which are located beyond the perimeter of the building and support structural elements connected to the building is not recommended for Category III. 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 III, the structural slab design should consider using interior stiffening beams and connecting isolated footings and/or 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 sub grade preparation is deemed necessary prior to placing concrete, however, the expose"d 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 sub grade soill:? 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 planned near the top of a slope steeper than 3:1 (horizontal:vertical), special foundations and/or 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 Hl3 (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 recommendations 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:vertical) 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. This 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 I I I I I I I I I I I .. I· I I I I I I • 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 if located 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 Category designated. TABLE 7.10.2 POST-TENSIONED FOUNDATION SYSTEM DESIGN PARAMETERS Post-Tensioning Institute (PTI) Foundation Category Design Parameters I IT ITI 1. Thomthwaite 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 in.lmo. 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 Variation Distance 5.3 ft. 5.3 ft. 5.3 ft. 10. Center Lift 2.12 in. 3.21 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 I 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 I I I I I I I I I I I I I I I I I I I Foundation Category 1. 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; and where it exce'eds 90 but is l~ss 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 ,by 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 exerted by a fluid density of30 pounds per cubic foot (pet). 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 finish grade soils having an Expansion Index greater than 50 and/or 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 walls 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 fudex less than 50) backfill material with no hydrostatic Project No. 06403-12-03 -24-June 25, 2001 I I I I I I I I I I I I I I I I I I I 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 psf, 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 ~esistance. 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 lateral loads. 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 prevalent 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 lines and slope planting, may also be a significant contributing factor to surficial instability. It is, ~erefore, recom- mended that, to the maxinium extent practical: (a) disturbedlloosened surficial soils be Project No. 06403-12-03 ·25 -June 25, 2001 I I I I I I I I I I I I I. I I I I I. I either removed or properly recompacted, (by 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 differential 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 andlor analysis. 7.14.2 In the event foundations are designed as post-tensioned, the geotechnical engineer sheuld also re,:iew the foundation plans prior to finalizing to verify conformance with the recommendations of this report. Project No. 06403-12-03 -26 -June 25, 2001 I. I I. I. I- I I I I I- I I I I I I I 1. 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 to -see that the contractor and. subcqntractors 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 findings 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 I I I I I I I I I I I I I I I I I I \ COSMOS . CT SOURCE: 2001 THOMAS BROTHERS MAP SAN DIEGO COUNTY, CALIFORNIA REPRODUCED VIITH PERMISSION GRANTED BY THOMAS BROTHERS MAPS. THIS MAP IS COPYRIGHTED BY THOMAS BROS. MAPS. IT IS UNLAVII'U~ TO COPY OR REPRODUCE AL~ OR mf PART THEREOF, VlHETHER FOR PERSONAl. USE OR RESA~. VIITHOUT PERMISSION GEDeON 0 INCORPORATED GEOTECHNICAL CONSULTANTS 6960 FLANDERS DRIVE -SAN DIEGO, CALIFORNIA 92121-2974 PHONE 858 558-6900 -FAX 858 558-6159 AS/JMW I I XJ7B1 I DSKI EOOOD 30 NO SCALE VICINITY MAP VILLAGES OF LA COSTA -THE GREENS CARLSBAD, -CALIFORNIA DATE 06 -25 -2001 I PROJECT NO_ 06403 -12 -03 I FIG. 1 I I I I I I I I I I· I I I I I I. I I I APPROVED FILTER FABRIC 6" DIA. PERFORATED SUBDRAIN PIPE 1" MAX. OPEN-GRADED AGGREGATE 9 CUBIC FT.lFT. MINIMUM 2' MIN. lE---------5' MIN. --------:.1 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 II/, NO SCALE GEDeON INCORPORATED GEOTECHNICAL CONSULTANTS o VILLAGES OF LA I COSTA -THE GREENS CARLSBAD, CALIFORNIA 6960 FLANDERS DRIVE -SAN DIEGO, CALIFORNIA 92121· 2974 PHONE 858 558-6900 • FAX 858 558·6159 AS/JMW DSK/EOOOO XlR1411 DRAFTINGIJIMWISD DATE 06-25-2001 PROJECT NO. 06403-12 -03 FIG. 14 I I I I I I I I I I I I I I I I I I I r EXISTING GROUND SURFACE NOTE 2 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 PREF.ABRICATED CHIMNEY DRAINS PANELS (MIRADRAIN, TENSAR, OR EQUIVALENT) SPACED APPROXIMATELY 30 FEET CENTER TO CENTER. ADDITIONAL DRAINS WILL BE REQUIRED WHERE AREAS OF SEEPAGE ARE ENCOUNTERED. 5. ..... 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 GEDeON INCORPORATED GEOTECHNICAL CONSULTANTS 6960 FLANDERS DRIVE -SAN DIEGO, CALIFORNIA 92121· 2974 PHONE 619 558-6900 -FAX 619 558-6159 AS/JMW I I REV/DFL XlR14/1DRAFTING/JIMW/BUTFIL2 MARIANO CARLSBAD, .CALIFORNIA DATE 06-25-2001 PROJECT NO. 06195 -12 -03 FIG 15 I I I I I I I I I I I I I I I I I I I /:: EXISTING GROUND SURFACE 1E---::1+.5·...,..-~WHERE PRACTICAL _________ ~~M~I;N~. J~~(:NO:T:E 7) FINISHED SLOPE 1.5' 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 DAAIN PANELS (MIRADRAIN, TENSAR, OR EQUIVALENT) SPACED APPROXIMATELY 30 FEET CENTER TO CENTER rNOTE 1 FINISHED LOT GRADE i UNDISTURBED FORMATIONAL SOIL 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 o GEDeON INCORPORATED GEOTECHNICAL CONSULTANTS 6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121· 2974 PHONE 858 558·6900 • FAX 858 558·6159 JMW/JMW I I DSK/GTYP1 XlR14/1DRAFTINGlJIMWSTABFIL6 VILLAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA DATE 06·25·2001 JPROJECT NO. 06403 -12 -031 FIG 16 I I I I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 ASSllvIED CONDITIONS: Slope Height Slope Inclination H = 100 feet 2:1 (Horizontal :Vertical) 'Yt = 130 pounds per cubic foot $ = 30 degrees Total Unit Weight of Soil Angle of Internal Friction Apparent Cohesion C = 500 pounds per square foot No Seepage Forces ANALYSIS: ?c$ = YHtan!l! Equation (3-3), Reference 1 C FS = Nc&. Equation (3-2), Reference 1 yH ?C$ = 15 Calculated Using Eq. (3-3) Ncf = 47 Determined Using Figure 10, Reference 2 FS = 1.8 Factor of Safety Calculated Using Eq. (3-2) REFERENCES: (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, No. SM6, November 1967. CUT SLOPE STABILITY ANALYSIS VTI..LAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA FIGURE 17 I I I I I I. I I I I I I I I I I I I I PROJECT NO. 06403-12-03 ASSUMED CONDITIONS: Slope Height Slope Inclination Total Unit Weight ofSoi! Angle ofIntemal Friction Apparent Cohesion No Seepage Forces ANALYSIS: ?cq, = YHtan~ Equation (3-3), Reference 1 C FS = Nc& Equation (3-2), Reference 1 yH ?cq, = 10 Calculated Using Eq. (3-3) Ncf = 34 Determined Using Figure 10, Reference 2 FS = 1.56 Factor of Safety Calculated Using Eq. (3-2) REFERENCES: H = 50 feet 2:1 (Horizontal :Vertical) "(t = 130 pounds per cubic foot <\> = 25 degrees C = 300 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 ofSoi! Mechanics and Foundation Design, No. SM6, November 1967. FILL SLOPE STABILITY ANALYSIS VILLAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA FIGURE 18 I I I I· I I I I I I. I I I I I I I I I 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: REFERENCES: H = Infinite Z =3 feet 2: I (Horizontal: Vertical) i = 26.5 degrees Yw = 62.4 pounds per cubic foot Yt = 130 pounds per cubic foot <I> = 25 degrees C = 300 pounds per square foot (1) Haefeli, R. The Stability a/Slopes Acted Upon by Parallel Seepage, Proc. 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 ., '1., 'i' '. :~.:;~.~:\t~~:l :::: ~~,. ~:~ :~~ ~~::~d.:·r.t;'~;:\;;·;.;,·/'.i::::: . , ...... _." .. -.; .. ",: .. ;-. .-..:t~,. ".;!.;tiiIii!I .;~:.!.: .• ,.,:. :;;;,;.'<0>:': , I I I I I I I I I I I I I I I I I I I APPENDIX A FIELD INVESTIGATION The latest phase of the field investigation was performed during the period of November 4 through December 1, 1999, and consisted of the excavation of 19 large-diameter borings, 11 small-diameter borings, 17 "air-track" drill holes 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 Ingersol Rand A-300 truck-mounted drill rig equipped with an 8-inch hollow-stem auger. Relatively undisturbed samples were obtained by driving a 3-inch 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 25/s-inch brass sampler rings to facilitate removal and laboratory testing. Standard , Penetration Tests (SPT) were also p~rformed at selected intervals. SPT samples were obtained by driving.a 2-inch split-tube sampler into the "undisturbed" soil mass with blows from a 140-pound hammer falling 30 inches. The large-diameter borings were advanced to depths ranging from 25 to 101 feet below existing grade using an E-120 truck-mounted drill rig equipped with a 30-inch diameter bucket auger. For sampling, a split-tube sampler was 'driven 12 inches into the ''undisturbed'' soil mass with the drill rig Kelly bar. The sampler was equipped with I-inch-high by 23/s-inch diameter brass sampler rings to facilitate removal and laboratory testing. Bulk samples were also obtained. An Ingersoll-Rand 500 pneumatic percussion, 4-inch-diameter drill with hydraulic puUdown was used for air-track holes at selected locations. A graphical representation of each of the air-track borings is presented on Figure A-169 through A-I85. The graphs depict the rate (in seconds per foot) at which the drill penetrated each foot of depth examined. The backhoe trenches were excavated to depths 3.5 to 18 feet using a JD 555 trackhoe-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 backhoe trenches were visually examined, classified, and logged. Logs of the borings and backhoe trenches are presented on Figures A-I through A-I68. The logs depict the soil and geologic conditions encountered and the depth at which samples were obtained. Project No. 06403-12-03 June 25,2001 .. - I I. PROJECT NO 06403-12-01 0:: >-UJ BORING LB I ZUJ~ >-~ (.!) l- I 0 <J: au • I-~ UJ~ DEPTH -' 3: SOIL Hzl-H. 0::'--' IN SAMPLE a c CLASS 1-<J:Lt.. CJ)Lt.. . ::::ll- NO. ::J: z EL.EV. (MSL.) 240 DATE COMPLETED 11/4/99 <1:1-' z. I-z FEET I-::::l (USCS) ~CJ)CJ) Wu CJ)UJ H 0 I-H3: C. HI--' 0:: LI.lCJ)O >-0-Oz I (.!) EQUIPMENT BUCKET AUGER zw-, ~'--' :£:0 ~o::e· c u MATERIAL DESCRIPTION ~ 0 V/ I ~ -F1LL • of o~"t 1\ Loose, humid, dark brown, very Sandy CLAY / o ., ~ 2 -::t:~: :f SANTIAGO FORMATION t-, , , .. ~ .... I ~ -·:f: :·t' Medium dense, dry, dark yellowish-orange, Silty, fine I--, ., ... ~. to coarse SANDSTONE, random, discontinuous, :·f· ·:f' ~ 4 ~ " 'f' caliche filled joints ~ .:~: :·t -Fault: N55W, 54SW, .5" wide, caliChe filled ~ ~ , ., t-5/12" I LBl-l ::t: j::f SM -Possible "drag-structure", (bedding folded into :... 6 -" 'f' fault-plane suggesting reverse movement) t- LBl-2 ·:f: :·f ' • 0 :... ~ :f~::ft t-, , , : I .. ~ .. ' -8 -·:f: :·f t- fl •• ~ •• Bedding: NlOE, 15E; siltstone 2" thick, abundant --'t "f t-:' ,( " caliche 'r "f ,... 10 -' , , -Undulatory contact ,.. I : ... ~.: ,r "f Stiff, dry, pale olive SILTSTONE interbed, --" 'f' ~ ':f: :'f' approximately 3' thick 12 -• tt .... ~ . '~. -:·t" ·:f' I - -::~:~\ -Pinkish-gray below 13 feet - ~ 14 ~ ::t:i::f: - I ~ ~. I ::f:~::~ -Bedding: N40W, 21NE (cross bedding?), lenticular -LBI-3 ::t*=[= 6/12" 124.8 10.8 I-16 -" 'f' bed less than l' thick I--'r :'t . --. I--r- I I-18 - \:1::[ I--::t:~::t · .. I---~: I-- I I-20' --Bedding: N70E, 14SE; well defmed sandstone beds I---, . I---l. _ ~a.pEr~~xp~elY_ 2~' .!hic.!c ______________________ , If- I--22 -Hard, moist, pale olive CLAYSTONE, f-I bentoniticl"soapy" texture, random, discontinuous, ~ -wavy, stained, closed fractures, massive I-- I-24 -I-- I I--f-4/12" 20.2 LBl-4 CH 112.2 I-26 -I-- LBl-S I I--I-- I-28 -I-- I--I-- I Figure A-I, Log of Boring LB I LCG I SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED)' ~ ... DISTURBED OR BAG SAMPLE 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 I 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 30 32 34 36 38 40 42 NO. -6 -7 06403-12-01 SOIL CLASS (USCS) CH BORING LB 1 ELEV. (MSL.)--.-;2;;;..;4..;;,..O __ DATE COMPLETED 11/4/99 EQUIPMENT BUCKET AUGER MATERIAL DESCRIPTION Hard, moist to very moist, 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 10112" 120.7 -Bedding: N73E, 35SE; slickensided, polished plane, slickensides parallel to dip -Very slight seep on north side of hole 14.6 44 ~~ft-+---+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----'1---1--- Hard, damp, pale olive SILTSTONE, massive LBl-8 ML 12/10" 124.7 12.1 46 -Bedding: N70W, 20NE, contact with sandstone 48 -Lenticular sandstone 50 -Bedding: N40W, 16SW, lower contact f-H7:#h'f-+---+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----I----!--- 52 54 56 58 -9 Hard, moist, pale olive to light olive-gray, plastic CLAYSTONE, massive, abundant, random, discontinuous, polished, slickensided surfaces, bentonitic!" soapy II texture Figure A-2, Log of Boring LB I, 117.7 17.5 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIve SAMPLE (UNDISTURBED) 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 I I I I I I I I I I I I I I I I I PROJECT NO. DEPTH IN FEET 60 62 64 66 68 70 72 74 76 78 80 82 84 86 SAMPLE NO. 1-10 1-11 06403-12-01 SM BORING LB 1 ELEV.(MSL.) 240 DATE COMPLETED EQUIPMENT BUCKET AUGER MATERIAL DESCRIPTION -Becomes grayish-green CLAYSTONE, massive -Undulatory contact,. generally horizontal -Becomes light gray, fme, Silty SANDSTONE zLIJ ...... >-" °u • 1-...... IJ.J~ HZI-H. ~ ...... I-<l:LL Cl)LL ::JI-11/4/99 <1:1-' z. ~CI)CI) LlJu I-z I-H::J: c. Cl)1JJ HI-LlJCI)O >-0.. Oz zLIJ-' l.LI~ca ~'"" I:o a.. '"" c u 20/10" 118.0 15.7 ~~!I-+-_-+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1---+----1'---- 88 Hard, moist to wet, light olive-gray, SILTSTONE/CLAYSTONE Figure A-3, Log of Boring LB 1 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 I I I I I· I I' I I I. I I I I I I PROJECT NO 06403-12-01 0:: BORING LB 1 >-LLI ZUJ'"' >-'"' (.!) I-0 <I: °u . 1-...... UJ;-': DEPTH .....I 3 SOIL HZI-H. 0:: .... IN SAMPLE 0 C CLASS 1-<cLL. (J)LL. :::If-NO. :I: z ELEV. (MSL.) 240 DATE COMPLETED 11/4/99 <Cf-'\. z. I-z I-is '(USCS) O::(J)(J) LLlU FEET H I-H 3 C. (J)UJ Hf-.....I 0:: EQUIPMENT BUCKET AUGER UJ(J)o >-0.. Oz (.!) zUJ.....I 0::""' :E:o ~o::S C u " MATERIAL DESCRIPTION I-90 I--Joints: N20E, 55W, N55E, 40NW; discontinuous, I- ~ undulatory I-92 --Slight seepage at 92 feet l- I--I- -94 -~LlCL - ,.. -- -96 --Gradational lower contact -, -------------------------------------, . --Hard SILTSTONE layer -, ML -98 --Gradationallbioturbated contact - Ii , -------------------------------------, . ,.. -Very hard, moist light olive gray, CLAYSTONE -CL -100 --End visuallpg at 100 feet - BORING TERMINATED AT 101 FEET - Figure A-4, Log of Boring LB 1 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL I§§ ••• 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 0:: I I I I I I I I I' I I I I· I I I I BORING LB 2 :>-LLl ZLLl""' > '"' .(!) I-0 <I: °u . 1-,", IJJ;-': DEPTH ....J ::3: SOIL HZI-H. 0:: v IN SAMPLE 0 Cl CLASS i-<I:LJ.. (J)lJ.. ::ll-NO. ::I: Z ELEV. (MSL.) 210 DATE COMPLETED 11/18/99 <I:I-" Z • I-Z FEET I-::J (USCS) O::(J)(J) IJJU (J)UJ H 0 i-H ::3: Cl • HI-....J 0:: IJ.I(J)O >0.. Oz CD EQUIPMENT ROTARY BUCKET 30" ZLLl....J ~0::6 0:: ...... L:o Cl t.) MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUM I- Stiff, moist, dark gray-brown, Sandy CLAY I-2 --Porous, with shrink crack 114"-1" wide l- I--~ CL l- I-4 -l- I--t/) -l- I-6 --Very irregular, transitional contact r -~I ~ SANTIAGO FORMATION l-I Very stiff, moist, light olive, Silty CLAYSTONE , I-8 --Very weathered and fractured l- I--l- I-10 -CL I--Becomes harder I--I l- I-12 -l- I--~ l- I-14 -l- e.. --:-Becomes hard to very hard, moist, light olive, Silty -8111 " LB2-1 ~ CL CLAYSTONE 127.2 21.0 -16 -LB2-2 - .----. -.. .. . :::: -'.---.¥. .-~ .. ,.., ... ~ -18 -- I--~ ~ l- I-20 --l- I--l- I-22 -'. __ -£.I~rjz21!t~ E~d~~&. ~O!!t~C! ___________________ ,. · t r ... l-'-:. aj.: Dense to very dense, damp, light reddish-brown, very I-r' f · .. ... Silty, coarse, SANDSTONE, with trace clay, massive : .. ~ .. : . I-24 -t· t I- LB2-3 : ... j.: . SM 8/11 " 121.0 7.1 I--r't I-LB2-4 =: :{[. • f r I-26 -::t:j\ l- I--::f:~::t' l- I-28 -::t:1\ l- I--::f:~::r l-· :r .. : : :. Figure A-5, Log of Boring LB 2 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ •.• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) IiiJ ••• 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 DEPTH IN FEET 30 32 34 36 38 40 42 44 46 48 50 52 54 NO. 06403-12-01 SAMPLE NO. LB2-S LB2-6 LB2-7 SOIL CLASS (USCS) CL BORING LB 2 ELEV. (MSL.) ----:2=1:..::..0 __ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION -.U.I\~Hll';;U 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 BORING TERMINATED AT 54 FEET Figure A-6, Log of Boring LB 2 11118/99 8 :20/10" 127.5 12.1 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL 18§ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) tJ ... 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 I I I I I 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 NO. SAMPLE NO. LB3-1 SOIL CL SM BORING LB 3 ELEV. (MSL.) 235 DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOlL dark CLAY SANTIAGO FORMATION Dense, damp, light brown to tan, Silty, fine SANDSTONE, with trace clay -6" claystone layer; horizontal 11/18/99 ~~+-+-----l, -Irregular, near-horizontal, depositional contact, (with I. __ finE w~'!.e~ E~~S~ ~~dl _____________________ .' CL Very stiff to hard, moist, light olive, Silty . CLAYSTONE -Very fractured, weathered -Bedding plane shear, horizontal, -114-112" thick, with gypsum liner, throughgoing, plastic, wet -Bed~g plane shear .. very irregular, 1/4"-1/2" thick with gypsum, approximately southward dip, throughgoing, 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 -Joint/fault (?), N30W, 30NE; 1/2"-1" thick, throughgoing, with wet, plastic and jarosite/gypsum Figure A-7, Log of Boring LB 3 ZLlJ"" >-""'-°u . . 1-1JJ~ I=!Zti: H"" 0:: ...... en • <I: <I: , zu.. ::::ll-o:::l-en IJJ • I-z l-en ::3: c~ enUJ LLlHO HI-zen...! >-0.. Oz LLlLlJIXl 0:::""" I:O 0..0:::""" C U 2 116.1 17.4 6 LCG SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... 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 SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 0::: BORING LB 3 >-lJJ ZlJJ~ >-,..., (!) I-0 (I: °u . I-~ lJJ~ DEPTH ....I 3 SOIL HZI-H. 0:::'-" IN SAMPLE 0 c CLASS 1-(l:LL. C/)LL. ::ll- NO. ::I: z ELEV. (MSL.) 235 DATE COMPLETED 11/18/99 <I: 1-" z. I-z I-::l O::C/)C/) lJJ U FEET H 0 (USCS) I-H 3 c. C/)w HI-....I 0::: EQUIPMENT ROTARY BUCKET 30" wC/)o >-0.. Oz (!) zlJJ....I 0::'"' I:o ~o:::S C tJ MATERIAL DESCRIPTION -30 LB3-6 ~~ linings (orange to brown) 6 108.0 21.9 --Hard, moist, olive to brown, Silty CLAYSTONE -LB3-7 I CL -Fractured, massive -32 -- -- I-34 --Near-horizontal contact • f r , -... SM -------------------------------------, .... • J .... Dense, damp, light brown to orange, Silty, fme l-.. . SANDSTONE / BORING TERMINATED AT 35 FEET I - Figure A-8, Log of Boring LB 3 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL I!!§ ••• 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 I, I I I I I I I I 'I", I, I I I I I PROJECT NO 06403-12"()1 0:: BORING LB 4 >-UJ ZUJ" >-" (.!) I-°u • 1-,", UJ~ 0 <t DEPTH ....I :3: SOIL HZI-H. 0::"'" SAMPLE 0 0 I-<tu. C1)u. =>1-IN .:::1: z CLASS ELEV.(MSL.) 145 DATE COMPLETED 11/19/99 <I: I-" z. I-Z NO. l-=> a::CI)CI) UJu C1)1..LI I FEET H 0 (Uses) I-H:3: 0. HI-....I 0:: UJCI)o >-0-oz EQUIPMENT ROTARY BUCKET 30" zUJ....I I (.!) ~0::e3 0:: ...... ';:0 0 U I MATERIAL DESCRIPTION I r 0 ~ r -CL COLLUVIUM r ! Stiff, humid, dark gray-brown, Sandy CLAY I r 2 -. _/ r , , r -?/.} TERRACE DEPOSIT - I-4 -{"// Medium dense to dense, damp, light brown-olive,. r ~).~ with reddish-brown mottling, Clayey, fine SAND I---LB4-1 Iy/ SC 4 124.4 8.9 I-6 -'/.// -/./.~ .... -~~~ -------------------------------------- 8 , Very stiff to medium dense, damp, light brown-olive, -- -//V1 ~~~ very Silty CLAY to Clayey SILT, with some sand, r -~LIML with white mottling of calcium sulfate (gypsum) -//1/' -10 -~~ - ,--~~~ - -12 -~~~ -Becomes more sandy -~~~ --//!/1 ' _____ Iqegtga.! 'p~d~ig[ ~O!!t~C!; 1'lJQ~ 1~~ __ ~ __ ' ________ ~-- j'l -14 -l1-, Dense, damp, light brown-tan, Silty, fine SAND r- -r-8/10" LB4-2 :.j tot· SM 122.1 9.8 16 -LB4-3 -2" thick, horizontal grit-size sand layer (angular r-j -l r -li -, volcanic grit) :- I-18 -:j -t.[-- -·r r -:1-.ll -Near-horizontal transitional contact r-, -Ii --------------------------------------, r 20 ---r -. : IJ _ Very dense, damp, reddish-brown, Gravelly, medium - I---:;M-GM to coarse SAND, with angular, fine volcanic - -.o·:~ GRAVEL I-22 --~ \ -Irregular deposition contact, near-horizontal; burrows I r -into unit below -' SANTIAGO FORMATION -24 -Very stiff to hard, moist, olive, Silty CLAYSTONE r- ---Very fractured, with discontinuous clay seam, I-~ ~~ calcium sulfate (gypsum) linings on fractures -26 -I-LB4-4 CL 5 120.2 14.5 --~ I- 28 --Becomes less fractured I- r -~~ I-~ BORING TERMINATED AT 30 FEET Figure A-9, Log of Boring LB 4, LCG I 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 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 PROJECT NO DEPTH IN FEET I-0 I-- I-2 - I-- i-4 - :-- - 6 - -- - 8 - -- SAMPLE NO. -10 -LBS-l - -LBS-2 -12 - I-- I-14 - i-- I-16 - I-- '-18 - :... - :-20 -LBS-3 - - -22 - -- -24 - - - I-26 - 06403-12-01 >-ffi (.!) l-e <r: a'iS ::t: 2: I-:J H e ..J 0:: (.!) J1l rt "f '.' SOIL CLASS (USCS) SM SM ML BORING LB 5 ELEV. (MSL.) 165 DATE COMPLETED 11/19/99 EQUIPMENT ROTARY BUCKET 30" \ MATERIAL DESCRIPTION TOPSOn.. Loose, dry, dark gray, Silty, flne SAND -Porous SANTIAGO FORMATION Dense, humid, light tan, Silty, fine SANDSTONE -Becomes medium to coarse-grained -Cross-bedding inclined 1S-20 degrees northward -Horizontal bedding Dense, damp, light reddish-brown, Silty, coarse SANDSTONE -Becomes gravelly and very moist - - - I- I- I- I- I- - - - - I- I- I-8/10" I- I- I- - 12S.8 11.9 I--LBS-4 I-28 -LBS-S """"""'"'>'1--+---1-, -Interfmgering, transitional contact; approximately -1----+--+----1 III CL '. - -~!.":~t: darlc-oli;e~ SiltY CLAYSTONE ---------_.' _ 10 117.2 16.7 I--~ ~ -Very fractured, wi~ discontinuous clay seams _ Figure A-10, Log of Boring LB 5 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) 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. I I I I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 0:: BORING LB 5 >-LtJ ~LtJ~ >-(!) I-" 0 <t HUl-l-,.... LtJ~ DEPTH .-J ::3: SOIL I-ZLL. H. 0::"'" IN SAMPLE 0 C CLASS <t<t, (/)u. ::ll- NO. ::I: Z ELEV. (MSL.) 165 DATE COMPLETED 11/19/99 0.::1-(/) Z •. I-Z FEET I-::J (USCS) 1-(/)::3: LtJU (/)UJ H 0 LtJHO C. HI-.-J 0:: EQUIPMENT ROTARY BUCKET 30" z(/).-J -a. Oz (!) LtJLtJco >-...., :E:o 0:::. 0.0.:: ...... C U MATERIAL DESCRIPTION I-30 ~ I---Scattered sub angular volcanic clasts l- I-32 -~ I-~ CL I--l- I-34 -l- I- BORING TERMINATED AT 35 FEET , , - Figure A-11, Log of Boring LB 5 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ~ ••• DISTURBED OR BAG SAMPLE ~ •• , 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 OTHER LOCAT-IONS AND TIMES. i I I ! I I I I I I I I I I I I I I I I I I I PROJECT NO DEPTH IN FEET -0 - ~ 2 - I-- I-4 - I-- I-6 - - ,.... 8 - I-- SAMPLE NO. LB6-1 I-10 -LB6-2 - - -12 - -- -14 - - - -16 - --LB6-3 -18 -LB6-4 I-- I-20 - I-- I-22 - I-24 - I-- -26 - - -LB6-5 -28 -LB6-6 - - 06403-12-01 Q:: >-UJ C!) I-o (J: 5 6 :J: Z I-::l H 0 ...J Q:: C!) SOIL CLASS (USCS) SC ML BORING LB 6 ELEV. (MSL.) _.=;26::..::0~ __ 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 11119199. - / - !;I. • .!;J.. -AJ::~+----I-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I-----l---I----".r. ,.·t' ,. r ,. • SM Dense, damp, reddish-brown, Silty, medium :... 6 SANDSTONE, with some clay 120.0 12.1 -I ::f:l::f ::f:~::t' ::.:~:: ~~rJ.---+----I-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I-----l---I---- Very stiff, moist, light olive, Clayey SILTSTONE - -ML - -1-J-Uq...t<W+--I----+. -Gypsum -1---1---+---:1, l \ -Horizontal contact I -"j".1 'I SM -- -De;;e~ d~p,-r~di~h:br;w~~ SiltY, fi~e-SAND~ ;'ith - ----, r-519" ',' d .[, some clay 1 -12" cemented fossiliferous layer ,~lj:,(!' -Bedding plane shear at 19.5 feet, 1/8"-114" thick, r horizontal, discontinuous -'j t l, : '1 :1, l li 'f J rl-:1, l "1".1 'I :'1 rl' :1· l l1'! :·1 t·I' '.1 :1, -Clay seam (not remolded) N oS, 5W approximately 1-2" thick, very moist, bentonitic? -Becomes light olive to brown I- - f- I- f- 11 r- I- 122.1 13,1 Figure A-12, Log of Boring LB 6 LCG o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) ~ ••• DISTURBED OR BAG SAMPLE iJ _ .. CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE SAMPLE SYMBOLS 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 1 1 I 1 I 1 I I I 1 I I- I: 1 I I PROJECT NO 06403-12-01 0:: BORING LB 6 >-UJ ZUJ" >-CD I-" 0 (I: °u • 1-" UJ~ DEPTH -I :3: -SOIL HZI-H • 0::'"" IN SAMPLE 0 Cl CLASS 1-(l:1.!.. Cl)1.!.. ::ll-::I: Z ELEV. (MSL.) 260 DATE COMPLETED 11/19/99 <1:1-' Zo NO. I-::l I'l::CI)CI) UJu I-Z FEET H 0 (USCS) I-H:3: c 0 Cl)lLI HI--I 0:: UJCI)O >-0.. Oz CD EQUIPMENT ROTARY BUCKET 30" zUJ-I ~o::e 0::'"" 40 Cl u MATERIAL DESCRIPTION I-30 :-1. oIl !---------------------------------------- -32 -Dense, moist, light olive, Clayey SILTSTONE -ML --I- -34 ---------------------------------------I - --Hard, moist, olive to gray, Sandy CLAYSTONE, with I-LB6-7 CL some silt 20 -36 -LB6-8 -I- ::f ""t ----------------------------------------:j: :~, Dense, moist, light olive-brown, very Silty, fine I-, , ::t I 38 -Of' , SANDSTONE to Sandy SILTSTONE I-, 't 5M-ML ::f :f' I--::t ' . ~ I-'r: . I-40 -, "'f -::f ' , :~~: 9 r- BORING TERMINATED AT 41 FEET - Figure A-13, Log of Boring LB 6 LCG SAMPLE SYMBOLS D ... 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. , I I I I I I I I I I I I I I I I I· I I DEPTH IN FEET o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 SAMPLE NO. LB7-2 -3 1 SM BORING LB 7 ELEV. (MSL.) ---....:2=2..;;..0 __ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOll.. d~k 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 11122/99 4 117.8 7.6 j.;.f,o~=l--I----+, ___ -~~<I!-E-'!.ri~'2.n!a! <!e)2~i:!i~n..:~!!t~C! _______________ ,+----t----t----i Hard, moist, light olive, very Silty CLA YSTONE to Clayey SILTSTONE -Becomes sandy -Joint, fracture, with 114 n thick clay seam, N30E, 30NW 3 -Discontinuous clay seams, E-W, 30S (very fractured claystone with sand) ~~+-l----+'--___ - -_____ --_ -__ - - - - - - - - - - - - --------+----1----1----1 CL Hard, moist, medium olive-gray, Silty CLAYSTONE, with discontinuous slickensided fractures, typically random and steep 6 115.3 15.7 Figure A-14, 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. I I I I .. I I I I I I I DEPTH IN FEET 30 32 34 36 38 40 42 44 46 NO. 06403-12-01 SAMPLE NO. SOIL CLASS (USCS) BORING LB 7 ELEV. (MSL.) ----.,;2=2=O __ DATE COMPLETED 11/22/99 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION ~+n<TI-+----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I----t----i---- LB7-6 LB7-7 ML SM CL Dense, damp, light olive, Sandy SILTSTONE, trace clay -Contact N80E, lOS -------------------------------______ 1 Dense, damp, light tan, Silty, fme SANDSTONE -Becomes reddish-brown (layers) -Bedding plane shear, N70E, 5S; 1/8"-1" \ ___ ~E1!gE-~oinjt. s!i<!.k~~iE~d.!. ~~ _________________ ,' Hard, moist, light olive-brown, Sandy CLAYSTONE 15 9 114.6 18.6 I 48 I I I I I I I 50 ff<¥¥¥-~+----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --I---t----i---- Dense, damp, light brown-tan, very Silty, fme 52 SANDSTONE, massive . 54 SM -6" cemented layer; lenticular 20/7" 56 58 ~~~~-_t_--------------------------------------~--+_--I__---- Hard, moist, olive, Silty, Sandy CLAYSTONE 2 CL 40/9" 121.3 14.2 Figure A~15, Log of Boring LB 7 LCG SAMPLE SYMBOLS 0 ... 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 1 I I I. 1 I . I I I 1 I I· I I I . " PROJECT NO 06403-12-01 a:: BORING LB 7 >-UJ ZUJ"" >-"" (!) I-0 <1: °u . 1-"" UI~ DEPTH ..J :3: SOIL HZI-H. 0::'-' IN SAMPLE 0 0 CLASS 1-<1:u. (J)u. :::::ll-NO. ::J: Z ELEV. (MSL.) 220 DATE COMPLETED 11/22/99 <1:1-' z. I-z I-:::::l O::(J)(J) UlU FEET H 0 (USCS) I-H:3: c . (J)UJ UJ(J)O HI-..J a:: EQUIPMENT ROTARY BUCKET 30" ZUI-I >-0.. Oz (!) UJa::tD 0::'"" ~o 0.. '"" C t) MATERIAL DESCRIPTION -60 r--B7-13 ~~ - BORING TERMINATED AT 61 FEET - , -, - - I Figure A-16, Log of Boring LB 7 SAMPLE SYMBOLS o ... 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 GONDITIONS AT OTHER LOCATIONS AND TIMES. I I I I i I , ! I I I I I I "I I I I I I I I I I PROJECT "NO 06403-12-01 0:: BORING LB 8 >-UJ ZUJ"" >-" c.o l-Ou • 1-"" UJ~ ° <:c DEPTH ...J 3 SOIL HZI-H. 0::'" IN SAMPLE 0 0 CLASS 1-<:c1.L. (f)1.L. ::)1- NO. :I: z ELEV. (MSL.) 180 DATE COMPLETED 11/22/99 <1:1-' z. I-z I-::) 0:::CJ)(f) UJu (f)1.LI FEET H 0 (USCS) I-H 3 O. HI-...J 0:: IJJCJ)O >-0.. " Oz EQUIPMENT ROTARY BUCKET 30" zUJ...J c.o ~o::e 0::"" ~o 0 u MATERIAL DESCRIPTION f-0 ~/) f--SC-CL LANDSLIDE DEBRIS -.. {/> Stiff, humid, dark brown, very Clayey SAND r 2 -:.1. I."/- -------------------------------------- e... -11" Medium dense, damp; light brown, Silty, fme to -medium SAND, with some clay i-4 -:'j tJ SM - . f--:1." ·1' - ~ 6 -1'" - :'j t'l' e... --:l·ll , f-8 --------------------------------------- e... -(?/.) Medium dense, moist, olive-brown, Clayey, fme -f// SAND :-10 -7:/-~ -SC :--/./., I-;//./ -12 -:;:; I- :--1:; r -14 --------------------------------------- --~. Medium dense, moist, light olive to red-brown, Sandy I-CLAY, with scattered, subrounded to angular volcanic :-16 -CL gravel, (brecciated Santiago formation claystone) I- --~ I- -18 -- --\ -Remolded clay seam-contact at 19,2 feet at N70E, i -~ -20 -\ 12S, 114-112", wet, plastic and throughgoing J --------------------------------------, --Medium dense, moist to very moist, reddish-brown, -very Clayey, coarse GRA VEL, with angular to -22 -subrounded volcanic clasts; disturbed, non-imbricated -~ GC texture (debris-flow?) --- -24 -I- --iT -Strong seepage at 25 feet ~ '\'t,.. SANTIAGO PEAK VOLCANICS I-26 -~\'"\'t,.. r Very weathered, fractured, light olive to -t'" reddish-brown, weak VOLCANIC ROCK, with oversize floater boulders I ~ORING TERMINATED AT 27 FEET REFUSAL Figure A-17, Log of Boring LB 8 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 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 06403-12-01 0:: BORING LB 9 >-UJ zUJ ....... >-'"' (!) l-Ou • 1-....... UJ~ ° <J: DEPTH -l :3: SOIL HZI-H. 0::'"" SAMPLE 0 0 I-<J:I.L. (J)I.L. :::ll-IN NO. Z Z CLASS ELEV. (MSL.) 140 DATE COMPLETED 11/23/99 <I: I-"-Cij • I-z I-:::l O::cn(J) c~ (J)LU FEET H 0 (USCS) I-H:3: HI--l 0:: UJ(J)O >-0-Oz EQUIPMENT ROTARY BUCKET 30" zUJ-l (!) UJo::a:l 0::'"" :E:o 0... '"" C (J MATERIAL DESCRIPTION I-0 ,ijjr J;.{;% FILL I--7./ I- //{ Loose, dry to humid, medium olive-brown, very I-2 -!/1 Gravelly, Clayey SAND l- I--/f') -Scattered 12" boulders, weeds l- I-4 -~g/.~ SC-CL I-LB9-1 ;/ 1 117.7 12.9 r -I--LB9-2 fj0 I-6 -!~ l- I--,l(V~ l- I-8 -~/. l- I--)~~ r /~, -------------------------------------- I-10 -~ Loose, moist, reddish-brown, very Gravelly CLAY. I- --~ I- ~ GC i-12 -r- I----------------------------------------~V VV i-14 -Y Soft, moist, light to medium olive, Silty CLAY '- LB9-3 ~~ / CL -Strong organic odor PUSH 115.1 16.8 --~ /y -LB9-4 ~ r-16 -~ / - ~ / I--V - "-18 -~~ ~ - ,.. -~~ ~ -~~ ~ .-20 -~~ ~ -- :--~~ ~ - -22 -~ V I- --Vv !/y -------------------------------------- -24 -~ Soft, moist, dark brown-olive, Gravelly, Sandy CLAY I-CL-SC -Very strong organic o~or - -~ r 26 -;---------------------------------------J;;/: --Loose, dry to humid, light reddish-brown, very r 7/ -28 -/./f GC-SC Gravelly, Clayey. SAND, with rock> 10" r I--7i~ -7/· Figure A-iS, Log of Boring LB 9 LCG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... 8-TANDARD PENETRATION TEST .... DRIVE SAMPLE {UNDISTURBED) ~ ••• 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. I I I I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 0:: BORING LB 9 >-UJ zw ..... >-,... t!) I-°u' 1-..... UJ~ DEPTH 0 <t: SOIL HZI-· H. '"' ..J ::I 0:: IN SAMPLE 0 c CLASS I-<t:u. enU. :;:)1-NO. :r: z ELEV. (MSL.) 140 DATE COMPLETED 11/23/99 <1:1-' z. I-z I-:;:) Q!enen UJ u FEET H 0 (USCS) I-H::I C. enlJJ HI-..J 0:: Wen O >-0-Oz EQUIPMENT ROTARY BUCKET 30" zUJ..J t!) ~o::e 0::'"" :2::0 C u MATERIAL DESCRIPTION I-30 >11' Loose, dry to humid, light reddish-brown, very ');;;/; I--7./ Gravelly, Clayey SAND l- I-32 -/.~ I-7C' GC-SC I--Y/-l- I-34 -~% - I---;~ I-36 -I' SANTIAGO FORMATION I- LB9-4 SC Hard! moist, light olive to gray, Sandy CLAYSTONE, 7 -massIve --, r-38 -- --LB9-5 12 110.1 19.8 -40 --LB9-6 - BORING TERMINATED AT 41 FEET -... .. Figure A-19, Log of Boring LB 9 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. I I I I I I I I I I I I I PROJECT NO 06403-12-01 0:: > w (!) I-0 <t DEPTH SAMPLE -' :3: SOIL IN 0 0 CLASS NO. ::z:: z FEET I-::J (USCS) H 0 -' 0:: (!) SM i-44 - --l.B10-7 -46 -I...B10-8 -- r-48 - BORING LB 10 ELEV. (MSL.) 290 DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION -Clay seam 118' thick, horizontal; not remolded Dense, moist, light reddish-brown, Silty, fine' SANDSTONE, massive -Joint; N30E, 65SE, with black, manganese oxide coating -Becomes light brown to tan, Silty, very fine SANDSTONE -Becomes light olive-brown BORING TERMINATED AT 51.5 FEET Figure A-21, Log of Boring LB 10 . Zw'"' > " °u . ~~ w~ HZI-0::'-' I-<tu. zu. ::JI-11/23/99 <tl-"-w • I-Z O::cncn O~ (,t)UI I-H:3: HI-UJ(,t)O >0.. Oz zUJ-' ~o::E9 0::'-" I:o 0 (.) - - - r- r-- 14/8" r- I- ,... '- I- - - - - -1419~1 - r- i- I- -l- I- LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UND ISTURBED) !l§ •• : 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 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 06403-12-01 0::: BORING LB10 >-UJ ZUJ""' >-'" t!) I-0 <J: °u . 1-,", UJ~ DEPTH ...I :.t SOIL HZI-H • 0::: ..... IN SAMPLE 0 c CLASS 1-<J:Lt. ~Lt. ::ll-NO. Z z ELEV. (MSL.) 290 DATE COMPLETED 11/23/99 <J:I-' UJ' I-Z FEET I-::l (USCS) O:::(J)(J) O~, (J)UI H 0 I-H:.t HI-...I 0::: L1l(J)0 >-a.. Oz t!) EQUIPMENT ROTARY BUCKET 3011 zUJ...I lfo:::e3 0:::'"" 40 0 u MATERIAL DESCRIPTION -0 ~/} --SC-CL TOPSOll. - "f/> Loose, dry to humid, dark gray-brown, very Clayey, -2 -"f'~'r fmeSAND I " ,]" . SANTIAGO FORMATION I--: "t· ":~: -.+ " "" • Dense, damp, light olive to tan, Silty, fme ., .~ . ., 4 'f " i--, , , SANDSTONE, with some clay, upper 2 feet i-:-'''1'': .: r' f -Becomes massive I--:-'f: : !- ~B10-1 'r ''f' SM 8 117.6 9.3 · , , I-6 -' .. !-•••• ~! ••. !--BIO-2 r' ~ , .. I--. : :~:'" i- ::f:l::t : -8 -'tt -Becomes light red-brown -:. ,(. :... -':f: =-, .:- + •• ~., • :... 10 -'t .,~ -:' 'r: --':f: :'t -: ... ~.: , r' ~ -12 -:. 'f: : -· ... .. ~. ·r - -::t*=t= - " 'f' --14 -'r :'~ -:- --I~~~I~: -8/10" I...BlO-3 -16 -- --\:~\ -i -18 -::f:i\ -::t:~\ I--::t:~::t r- to-20 -::t :l::f' -i-· . , I--::t:~::t: i-.. .. ... I-22 -::t:j:r - I--::f:~\ -::t*:[ to-24 -.. ' '~'" . -'"('r I--.:: f' -6/9" 12.3 I...BlO-4 115.7 :... 26 -~ ::~:l::f - L..B10-S t· t :. 'j": i--r' f I-, , , , , , ,... 28 -: ... ~.: I-:*f:t· --r't r-::t:i::~' ' , Figure A-20, Log of Bdring LB 10 LeG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST ..... DRIVE SAMPLE (UNDISTURBED) ~ ••• DISTURBED OR BAG SAMPLE iJ ... CHUNK SAMPLE :t: ... 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. -- I I PROJbCl NQ Ofl4.m-12-01 I I I I I I I I I· I I I I I DEPTH IN FEET r-0 r-- r-2 - r-- - 4 - '-8 - r-- r-10 - -- -12 - - - SAMPLE NO. -14 -~Bl1-3 -- -16 - I-- I-20 - - I-22 - I-- >-(.!) o ...J o ::x: 5 I-24 - I-~~: -~Bl1-4 I:t'~;~ ;:~~ : 26 ~~Bl1-5 ~~:~l:'.~:;~~ r-28 - SOIL CLASS (USCS) SC BORING LB 11 ELEV. (MSL.) ___ 2::.::O:.;::,.6 __ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOn. Loose, dry, dark brown, very Clayey, fine SAND SANTIAGO FORMATION Stiff, moist, olive to brown, Silty CLAYSTONE -Very weathered and fractured -Bedding plane shear with (calcium sulfate); horizontal -6" concretion layer at 8 feet-lense -Abundant horizontal gypsum seams (l/8-1I2" thick) -8" fossil shell layer -112" horizontal clay seam; not remolded 11/24/99 I- - - i- - ,... I- - - - - - I- "I- I- l- I- 1/6" I-8 I- I- I- 102.9 20.2 r-- I::~:~t: ::C: ~':~: I*HI-!l-+----+ ------- - - ---- - - - - - - - - - - - - - - - - - - ---- - --1---+----11----~p.~ Figure A-22, Log of Boring LB 11 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. I I I I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 ~ BORING LB 11 >-lLI ZlLIl"'\ >-'"' CD I-o U • 1-1"'\ lLI~ 0 <I: DEPTH ..l :3 SOIL HZI-H. 0::"" SAMPLE 0 0 I-<I:u. (f)u. :::ll-IN NO. Z Z CLASS ELEV. (MSL.) 206 DATE COMPLETED 11/24/99 <I: 1-' z. I-z I-:::l (USCS) O::(f)(f) lLIu (f)L1J FEET H 0 I-H:J: O. HI-..l ~ lLI(f)O >-0.. Oz EQUIPMENT ROTARY BUCKET 30" ZlLI..l CD lLI~11l ~¥ 40 a.. v 0 u MATERIAL DESCRIPTION r-30 ~;;:.~ r -:;(.:~ Hard/dense, moist, reddish-brown, Clayey r- ~~ SANDSTONE, and Sandy CLAYSTONE -32 --Alternating beds r-~1: SC-CL --r-~~~ '-34 -~»., , ___ -!1~r.!zEI!t~ E~d~~!t _______________________ ,-r- --CL-CH Hard, very moist, olive, Silty CLAYSTONE r-L..Bll-6 -Fractured, with gypsum-linings 10 112.7 18.4 -36 -r- - - ,.... , -38 -- ----Remolded clay seams N-S, 40E; discontinuous, 1-2" -40 -zone - --~ ~ - -42 - .~ ::f:~::t. -------------------------------------- --°t ,Of Dense, damp, light brown-olive, Silty, fme -, , ... SM SANDSTONE : .. ~.: -44 -"f"'+ ->Of :.~. ·:r~ - BORING TERMINATED AT 45 FEET - Figure A-23, Log of Boring LB 11 LeG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• 0 I STURBED 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 SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. I I PROJECT NO. 06403-12-01 I DEPTH IN FEET SAMPLE NO. ~ If 5 Ii SOIL CLASS (USCS) CL " BORING LB 12 ELEV. (MSL.) ----'2=1~5 __ DATE COMPLETED 11/24/99 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOIL Stiff, humid to dry, dark gray-brown, Sandy CLAY I - -:: 4 I:: SANTIAGO FORMATION Dense, damp, light brown to tan, Silty, fme SANDSTONE, with coarse lenses, massive C--I:: I' = 6 =~B12-1 I SM 122.9 11.7 -·6 I I I I I I I I. I I I I -- C-8 -- - ~l'~i!-!--_-r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1----1---1 :. :~: C-10 - C-- '-12 -~M-Ml c-- Dense, damp, light olive, very Silty, very fine SANDSTONE to Sandy SILTSTONE - - -~: fH-H!-'iil--i----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --i-----j---t----t t~: -14 - SM Dense, damp to moist, light brown, Silty, medium SANDSTONE - f-4 -~B12-2 !~~~ :-16 -~BI2-3 ~~~+--t,. __ -~:S..! 10_E..!, ~e.!Y_iEr~@l.!ll"_d~E.0~ili~n_c~I!E~t. _________ ._".1-1----1---+----; --~~I~I~~ Hard, moist, olive to brown, Silty, Sandy f- e... 18 -~ v:: CLAYSTONE, with irregular 1 "_2" lenses of I- CL-SC sandstone, with scattered gravel '--I- -20 -~r~ I-1fj~Pf;r/;~r-t---r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -.;. - - - - - --1----1----1----; --~~ -22 -~ - - -24 -,B12-4. .~- --lB: -26 - I-- t-28 - I-- II I~ ~ ~ CL Hard, moist, olive, Silty CLAYSTONE; fractured, massive -Joint with 1/4", jarosite-stained clay lining N80E, 30S Figure A-24, Log of Boring LB 12 I- I- I-3 108.0 20.6 - - - LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED) ~ ... DISTURBED OR BAG SAMPLE ~ ••• CHUNK SAMPLE ~ ••• WATER TAEILE 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 ·1 I I PROJECT NO. DEPTH IN FEET I-30 I-- SAMPLE NO. 06403-12-01 >-(!) o ..J o :r: I-~ 0:: lIJ CLASS (USCS) ~ ::I SOl L CI Z :::::l o 0:: (!) BORING LB 12 ELEV. (MSL.) --=2=1=5 __ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" I.-MATERIAL DESCRIPTION ~~ -Slight seepage along fracture 11/24/99 ~~ -12" horizontal deposition contact I-~~i+-+----j. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1----1----1------4 I-32 - r - -34 - --f--B12-6 -36 - -- r 38 - I-- r 40 - - " I:' . . .. . ' " .. .. .. ' ML 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 l- I- I- .1-1417" l- I- I- l- I- , LCG SAMPLE SYMBOLS o '" 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 •. I ,I I ! I I I PROJECT NO DEPTH IN FEET -0 -- SAMPLE NO. 06403-12-01 SOIL t:LASS (USCS) CL-SC BORING LB 13 ELEV. (MSL.) 190 DATE COMPLETED 11/29199 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOll. Stiff, moist, dark brown to reddish-brown, very r-2 -I r-- . Sandy CLAY . SANTIAGO FORMATION I I I I I I I I I I I I I r-4 - SM r-- I-8 - -- -10 - -- -12 - '-- i-14 - i--U313-2 ~-SM i-16 -L..B13-3 i-- i-18 - i-- i-20 - - i-22 -SM - i-24 - - - ,.. 28 - -- Dense, damp, light brown, Silty, fme SANDSTONE 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 (fossmZerous) Dense, damp to moist, red-brown to olive, Silty, fine SANDSTONE, with interbedded claystone -4-5" c1aystone.1ayer (no remolding) Figure A-26, Log of Boring LB 13 r- l- I- - - - - 7 116.4 112.3 118.5 10.6 18.9 16.1 LC SAMPLE SYMBOLS [J ..• SAMPLING UNSUt:t:ESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) Iii;] ••• 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 INDIt:ATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE t:ONDITIONS AT OTHER LOCATIONS AND TIMES. I I I I I I I I I I I I .1 I I I I PROJECT NO. DEPTH SAMPLE . IN NO. FEET r-- 06403-12-01 >-(!) '0 ....J 0 ::I: I-H ....J ::~ I:: I:: :f SOIL CLASS .~ (USCS) BORING LB 13 ELEV. (MSL.) 190 DATE COMPLETED 11/29/99 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION -4-6" thick cemented sandstone layer - -J::::~: I;:t:~~ - ZLIJ'"' . >-" cu· 1-,.... LLI~ HZI-H • 0:::'"" 1-(t1.1.. (/)1.1.. :::ll-<I: I-"-Z • I-Z 0:: (/) (/) LLlU I-H::::t c . (/)UJ HI-LLI (/)0 >-0-Oz zLIJ....J LLI 0::: to 0::: ..... l:o c... v C (.) r-34 - r--~B13-5 r-36 -~B13-6 :::t: I:: \I 1T.1~*7J-:=!:+----t' ____ -§lig,!1~sEe'p~gE WErE1!.e~t ____________________ ,-1----+----+---1 Hard, very moist, olive to brown, Silty CLAYSTONE . _ CL -Fractured, caving, with water along fractures 9 - r-- -38 - r-- i-40 - -- r- i-- I-42 - I-- -44 - I I~ ~..,.I'Mr=iI!s.;-__ +, ___ -§ll@~ sEe.p~E __________________________ , -1-:_--+---+--- --~BI3-7 II 46 -~ - - -48 .:. - - ,.. 50 - :.. - :.. 52 - - :.. 54 .- -lB13-8 :.. 56 -,B13-9 .. :.. - :.. 58 - - ML Very hard, moist, olive-gray, Clayey SILTSTONE -Slight to moderately cemented in upper portion ~~r-+----+--------------------------------------~~ CL Hard, moist, dark olive, Silty CLAYSTONE.. ~~+--+-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---~~ SP Dense, very moist, light olive to brown, medium to coarse SANDSTONE ~~~ ~~~ ~~r-f-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---:":::i:: ;: I~~~: ,t:':;f; :~~: ~ ~ ::f: :: ::t: .: SM Very dense, damp, medium olive-gray, Silty, very fine SANDSTONE, with trace. clay BORING TERMINATED AT 60 FEET Figure A-27, Log of Boring LB 13 I r- r- 1-12/9" 115.4 15.3 I-~ l- I- t- - - - 20/10" - - - SAMPLE SYMBOLS [J ..• SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST II ... 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 PROJECT NO DEPTH IN FEET - 2 - - - - 4 - - - - 6 - - - - 8 - SAMPLE Nfl· 06403-12-01 0:: UJ ~ :3: SOl L ~ CLASS => o 0:: (.!) (USCS) SC SM ML BORING LB 14 ELEV. (MSL.}---.;1=9..;;:;..5 __ DATE COMPLETED 11/29199 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOll.. '--.....;Lo~o.;:.;se:.!., ".;;;d;:"w,.ry " ".;;;dar=k,5!g:;,;:lraJ'":L· -.,;:b;;..::ro:....:,.wn:..=.!...., ..;:C:;,;:la:Lyce='<;~Y...!..J' ..::.:fi;;::,ne:;...S::..;A.;;;N:....:..D::..-___ --J} SANTIAGO FORMATION I- Dense, damp, light brown to tan, Silty, fme .to medium SANDSTONE Dense, damp, light olive, Sandy SILTSTONE, with trace clay I- f- - -~'f~Tr+---4--------------------------------------r----+----~--~ II :.~t·~f.r' Very dense, damp, light brown-tan, Silty, fme to ,... 10 -,",B14-1 ,... - -12 - - - -14 - - - -16 - -- ~ 1 r SM medium SANDSTONE ::f:~::t ::t*:( . :t=~: :~. . .. ,. f'J" t1l ::~*:f' ::r:~::~ .. :r:J:,;~ •• ~ •• ·r -Becomes moist . -8/10" 124.2 14.0 - - - -. - - - 18 -::r:~::.t. ,"""C ;t.7::i'l--;-----r\ -Very irregular scour-contact into weathered rl-I----+---+-----I \ claystone (to a clay seam), N70E, lOS, wet, plastic, I l-r - I-20 -uB14-2 I r - I-22 - - r 24 - r-- '-26 - .... - -28 - -- CL I 112-1" thick I ~ ___________________________________ -, !- Hard, moist, light olive, very Silty CLAYSTONE, 8 with some sand interbedded throughout I- -Discontinuous clay seams (slickensided fractures and varying dips in 6" zone) - - - - I- Figure A-28, Log of Boring LB 14 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) Il§ ... 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 I' I' I' I I I I I I I I PROJECT NO. (\kAm .1?()1 II BORING LB14 >-zlJJ ..... >-..... (.!l 0 °u . I:i ..... IJ.J~ DEPTH SAMPLE ...l SOIL HZI-00' a::"" IN ° CLASS 1-<I:Ll. ZLl. :::lI-Z ELEV. (MSL.) 195 DATE COMPLETED 11/29/99 <I: I-"-NO. I-C:::cnOO IJ.J' I-Z FEET H (USCS) I-H 3 O~ cnUJ HI-..J EQUIPMENT ROTARY BUCKET 30" UJ(I)o >-0-Oz zlJJ...l ~0::!:9 C:::"" ::E:o 0 u MATERIAL DESCRIPTION -30 ~BI4·3 I~ ~ 15/8" ---------------------------------------- -32 -Very dense, moist, gray·olive, Clayey SILTSTONE; r ML with some very fme sand --r i-34 -l- i--__ -~~~~~~E~~~[ __ ~ ____________________ I-36 -~ ~~ Very hard, moist, dark olive-brown, Silty t-CLAYSTONE, massive :--~ i-I ,... 38 -i- --i- :-40 -lB14-4 ~ CL i-15/8" --LB14-5 i- -42 BORING TERMINATED AT 42 FEET - Fi e A-29 , Lo gur , g of Borin g LB14 I C L G 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. I I I I I I I I. I I I· I I I '1 I I DEPTH IN FEET o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 NO. 06403-12-01 SAMPLE NO. 15-1 15-2 5-3 SOIL SC BORING LB 15 ELEV. (MSL.) ---....;2=S...:;..0 __ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION LANDSLIDE DEBRIS Loose, humid, dark brown, very Clayey, fine SAND -Becomes medium dense, damp, light olive, very Clayey, fine to coarse SAND -Highly weathered and fractured -Clay seam, 1/8"-114"; N65E, 25N, joint, with 11/30/99 \ calcium sulfate lining I -------------------------------------, Stiff, moist, olive, very Sandy CLAYSTONE, with CL some silt, very fractured, weathered 1/6" 106.7 21.0 -Fracture and clay seam; 1/8"-114"; N60E, 8-10SE, wet, plastic and slickensided, throughgoing, with calcium sulfate lining -Remolded clay seam; 1/4"-1/2", N50W, I5-20NE; wet, plastic and throughgoing, with orange iron oxide of slide SANTIAGO FORMATION Hard, moist, olive, Silty CLAYSTONE; fractured, but massive and intact -Becomes medium olive -Massive, moderate fracturing CL 3 122.2 13.4 SM -Discontinuous clay seams; zone -12" thick at N40W, 30-40NE -Becomes very hard, massive, with few fractures -Horizontal transition to siltstone and sandstone -------------------------------------, Dense, damp, light brown to tan, Silty, fine SANDSTONE -3-6" thick cemented sandstone , Figure A-30, Log of Boring LB 15 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 CONDITIONS AT OTHER LOCATIONS AND TIMES. I I PROJECTNO 06403-12-01 I' I I I I: I I I I I I ·1 I I I I I 0:: BORING LB15 >-UJ Zw'"' >-,... t!) r-°u . r-"", w~ 0 <I: DEPTH ..l :3: SOIL HZr-H. 0:::'"' SAMPLE 0 Cl CLASS r-<elJ.. CJ)lJ.. :::If-IN ::I: z ELEV. (MSL.) 250 DATE COMPLETED 11/30/99 <1:1-' z. r-Z NO. r-:::l O::CI)CJ) UJu CJ)UJ FEET H 0 (USCS) r-H:3: Cl • Hr-..l 0:: UJCI)O >-0.. Oz t!) EQUIPMENT ROTARY BUCKET 30" Zw..l 0::'"' 1:0 ~o:::9 Cl u MATERIAL DESCRIPTION I-30 ,...B15-4 ::f:~::to 20/1l" I--::t:{~: I-,...B15-5 .,. ,. .... I-32 -··f+ .Pt" l-• • 0 ,," ."j." ,. rOt t--:. y= : l-... ··f+ ,,·t· I-34 -o. oj" • :-:·t" ·~f· • 0 0 -1-. -,. ~,. .. -,. ...... I-36 -::f=f:to ~ r' ~ -Becomes medium to very coarse-grained and massive o • 0 ." .~ ..... .. I--or °t I-o 0 ° :,. .. to~.: : I-38 -r 0 f I-o • 0 ,," "~" ... --:;f:j::t: r ;-40 -··t" ··f I- i.JB15-6 I :~~~~:~f~ 20 128.9 12.4 .. ., .... - BORING TERMINATED AT 41 FEET - - Figure A-31, Log of Boring LB 15 LCG 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 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 DEPTH IN FEET o 2 4 6 8 SAMPLE NO. >-(.!) o ..J o :I: j CL CL BORING LB 16 ELEV. (MSL.) 175 DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION TOPSOn. 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 . !-...... IJJK H Z !-H. 0::'-' !-<e1J.. CIlIJ.. =>1-11/30/99 <I: I-' z. O:::cn Cll LUU I-z I-H:3: C. (J) lJJ-HI-~cng _ >-0-Oz LUUJIO 0:: ...... Eo 0-0::: ..... C U 1'On*WrJ-t----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---1----1 10 ML Dense, damp, light olive, Clayey SILTSTONE 8/11" 121.4 13.3 12 14 ~-:f-I:1-!i-+----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---1----1 16 SM 18 20 CL-SC 22 24 26 28 Dense, damp, light brown to tan, Silty, fine SANDSTONE, massive -Irregular depositional contact approximately N-S, \ 20S; no shearing I -------------------------------------, Hard, moist, light olive to brown, Sandy CLAYSTONE to very Clayey, fme SANDSTONE -Massive, blocky fracturing Figure A-32, Log of Boring LB 1 4 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 PROJECT NO. DEPTH IN FEET SAMPLE NO. On4m-12-01 SOIL CLASS (USCS) BORING LB 16 ELEV. (MSL.) 175 DATE COMPLETED 11/30/99 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION I .... 30 ~B16-3 .... - LB16-4 14 123.8· 13.3 I- I-.... 32 -~ I· ~ -I- -Clay seam-contact, N60E, 20SE, 1116-114" thick, ,1---1---+---1 I I I I I I I I I I I I I ;-34 - - ~ 36 - ,-SM r 38 - ;-46 -ML - -48 --- -50 -~B16-6 SM --~B16-7 -52 \ wet, plastic and undulating; with very fractured, I \ iron-stained zone -2" on either side I ;-~-------------------------------_--_-I Dense, damp to moist, light brown to olive, Silty, I- medium to coarse' SANDSTONE, with some clay Very hard, damp, dark gray-olive, Clayey SILTSTONE, with some very fine sand Dense, damp, light brown, Silty, fine SANDSTONE BORING TERMINATED AT 52 FEET - :- - -16 - - I- I-20/11" 128.0 10.5 I- Figure A-33, Log of Boring LB 16 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ij;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 cqNDITIONS AT OTHER LOCATIONS AND TIMES. I I PROJECTNO 06403-12-01 I I I I I I I I I I I I. 1 I I DEPTH IN I-2 - I-- I-4 - I-- I-6 - I-- I-8 - I-- SAMPLE NO. L..B17-1 -10 -L..B17-2 -- -12 - -- -14 - -- -16 - -- -18 - -- -20 -L..B17-3 I-- I-22 - I-- I-24 - I-- I-26 - - r-28 - - ~I~ SOIL CLASS (USCS) CL CL BORING LB17 ELEV. (MSL.) ---:2;:..::4..:;..0 __ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION FILL Soft, humid. mottled dark brown to light olive, Silty CLAY, with some sand, porous texture, rootlets SANTIAGO FORMATION Very stiff, damp, medium olive, Silty CLAYSTONE; very fractured, brittle 12/1199 I- I- I- I- I- I-~~ ~ ~~ ~~~~-t----+\ -Near-horizontal contact (transitional over several _f-I-__ -+-__ -+-_-I ::t:~::t: 1 ___ ~c.?~sl_ -----------------------------/ I-8 ::t:~::t· SM Dense, damp, light olive to brown, very Silty, fme ·.r. i.·~ SANDSTONE, with some clay :·C ·l·:~ :;t:~::f' ::t:l::~ 'rJ"~ ::t:~::t' ::t*=f ::t:~::t' ::~:j::r ::f:~::t ::t*Y ::t:~::~ .. -( -j'".~ I ~:t:~:~t. ::t:~::t :·h·:f. ":r:1:·~· :·r·j":~ -6" x 24" lenticular concretioIt -Becomes light brown to tan, very Silty, fme SANDSTONE -Becomes medium-grained (orange, horizontal 3" bed) -Becomes orange, coarse-grained 127.4 11.5 I- I- - - - - -8/10" - - I-::~:1::f h:¥T:::"::f--I----I-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---1----1 ''t'!''t ::t:~::[ SM -Becomes very moist, orange, Silty, very coarse SANDSTONE I- I-~:t:~:~t SZ n:"ft';;,~"=ti'i!-=-t----+\ -Slight seepage (perched above sharp, horizontal, _\--_--11---,---1-__ -; \ scour-contact I rvrL-CL -- -H~d, ~~i~t: Ught oli~~ ~;rY Cl;y~y SIl;rSTONE - - - - - --, """ hAJ'~:l--I----I-\ -Cemented, fine sandstone, 6"-8"+-, gray, horizontal _\--_--11--_-1-__ -; ::f:j=:t SM 1 ___ a! ~~e_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____________ ,' Figure A-34, Log of Boring LB 17 LCG SAMPLE SYMBOLS [] ••• 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 SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. I I I· I I 1 I I· I I I I I I I I DEPTH IN FEET t-30 I-32 - SAMPLE NO. 06403-12-01 I~ >-(.!) 0 ..J SOIL 0 I~ ::I: CLASS I-H (USCS) ..J SM CL II BORING LB 17 ZLIJ'" °u . HZI-I-a:u. ELEV. (MSL.) 240 DATE COMPLETED 1211199 <1:1-"-0:: (I)(/) I-H:::3: LIJ(I)O EQUIPMENT ROTARY BUCKET 30" zLIJ..J LlJo::cc a.. '-' MATERIAL DESCRIPTION Dense, wet, light olive, Silty, medium SANDSTONE 14 t--Slight seepage . -Scoured deposition-contact; NIOE, lOW (with -1" \ iron-stained basal layer) I ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --, t-Hard, moist, medium olive, Silty CLAYSTONE -Becomes very sandy (lenses) -Becomes very hard, dark olive-gray, Silty CLAYSTONE BORING TERMINATED AT 42 FEET t- I- t- l- I-20/10" I- Figure A-35, Log of Boring LB 17 >-"... 1-", UI~ H. 0::"" (/)u. :;:)1-Z • I-z UlU (/)UI o • HI->-0.. Oz 0::'-' :E:o 0 u 123.4 12.3 LCG' SAMPLE SYMBOLS o ... SAMPLI NG UNSUCCESSFUL I!!§ ••• 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 T.RENCH LOCATION AND AT THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIY; 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 SAMPLE IN NO. FEET -0 -- -2 - -- -4 - - - -6 - - - -8 - - - -10 - :-- -12 - '-- :-14 - -- :-16 - -- -18 - - -20 - -- -22 - I-- I-24 - I- 06403-12-01 ~ I SOIL CLASS (USCS) CL CL BORING LB 18 ELEV. (MSL.)_=21=5 ___ DATE COMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION COllUVIUM Soft, damp, dark brown, Sandy CLAY SANTIAGO FORMATION Hard, moist, medium light, olive-brown, very Silty CLAYSTONE 12/1199 - r r r r r ~~ ~~s-+-----+ ---- - - --- - - - --- - - - - - - - ----- - - - - - --- - --1-----1---+---1 '::':i:~ ~: :.::. ;~:~:; :: ,~~:: <.;:. SM Dense, damp, light brown to tan, Silty, fine SANDSTONE r ::l: .t: :;~:~: ~ :-:·m\ ,-Near-horizontal contact :-1t:I-Irl7~-+-C-L--+ ---H~d, ~~i~t~ Ugh; ~ediu~ ~ii;e~ S~d; -------------,+,..---+----+---1 CLAYSTONE, some silt :.. ~WM!r-t----b ___ -p~P_O!it.!0E:c~nEt.:t.!. ~~5.?!.. !,O§ _________________ , -1----1----1----1 ML SM Dense, damp, light olive-brown, very Sandy _ SILTSTONE -Cemented sandstone layer 12" + -thick;_ -20" wide (lex;tse) - - \ -Horizontal contact t r ~------------------------------------, Dense, damp, light tan-olive, Silty, fme SANDSTONE, massive r r r BORING TERMINATED AT 25 FEET Figure A-36, Log of Boring LB 18 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 .. I I I I I I I I I I I I I I. I I I PROJECT NO . . DEPTH SAMPLE IN NO. FEET I-0 I-- r - -20 -l.JBI9-4 --. l.JBI9-5 -22 - -- I-24 - I-- I-26 - I-- I-28 - '-- 06403-12-01 0:: >-Ul (.!) I-0 <I: ...I ::t 0 C :I: Z I-::J H 0 ...I 0:: (.!) BORING LB. 19 SOIL CLASS ELEV. (MSL.) (uses) 275 DATE GOMPLETED EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION CL TOPSOn.. Stiff, damp, dark brown, Sandy CLAY SANTIAGO FORMATION SC Loose to medium dense, damp, reddish-brown, very Clayey, fme SAND, with gypsum, very weathered sandstone ML Dense, damp, light olive, Sandy SILTSTONE ZLLI'"' >-"" 0(.) • I=i'"' LLI~ HZI-. (J) • 0:: v I-<J:LL ZLL ::JI-12/1199 <1:1-' O::C/)(J) Ul • I-z c~ C/)IJ.I I-H::t HI-UlCJ)O >-0.. Oz zUJ...I ~o::e 0::"" l::o C U - I- r- i- - - -ff¥~!i-f----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---1----\ SM Dense, damp, reddish-brown, Silty, fme SANDSTONE -Fossiliferous, with organic odor - I-- f- 6 121.1 9.4 IY-t~rl--f----+, -Cemented sandstone (concretion) _ i-_____________________________________ , 1-----1---1----\ Dense, moist, light olive, Clayey SILTSTONE, with I- some sand 1-. ML -. - 1h!>\>!#.>9--I----\-, ___ -!I~rp:~I!.t~ l>~d~~&:'':.o!!t~C! ___________________ .-1------+---+----1 CL Very stiff, very moist, medium olive, Silty CLAYSTONE, with interbedded sandstone (fossiliferous) and gypsum, and jarosite (iron sulfate) coatings on fractures I-- 1 I- I- - ~~:!--'I__-__t-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --i---i---f----i ::f=ft ::t: ::f' :: :~:: :·f+:t SM Dense, moist, reddish-brown, Silty, fine SANDSTONE; very fossiliferous - I- ."L:"J":r: J;,,;.~=t--I----r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --i---i---f----m Figure A-37, Log of Boring LB 19 LCG SAMPL~·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 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 PR,)JEC'T NO. I I I DEPTH IN FEET -30 I- I-32 - SAMPLE NO. I I-- I I I I I I I I I I I-34 - I-- I-36 - I-- I-38 - I-- I-40 I- I-42 I--LB19-9 I-44 - I- OIi403-12-0 1 ,.. I~ tJ) 0 ~ ...l ~ SOIL 0 CLASS ::I: I-H ~ (USCS) ...l I~ ML I :,. ~~ 11::1= ~ CL ~ ~ ~ ~ ;.:;:: ::l~. :: :: SM :: 1"'1 _MT BORING LB 19 ELEV. (MSL.) 275 DATE COMPLETED 12/1/99 EQUIPMENT ROTARY BUCKET 30" MATERIAL DESCRIPTION Hard, moist, olive, Silty CLAYSTONE - l- I- -Strong seepage at 34.5 feet -, -Horizontal contact I -------------------------------------, Hard, wet, medium-dark olive, Silty CLAYSTONE I- -Fractured (with water seepage) and jarosite/gypsum I- coatings I- :"Horizontal contact -------------------------------------~ Dense, moist, reddish-brown~ Silty, medium to coarse I-SANDSTONE r- '- Very hard, moist, dark gray-olive, Silty CLAYSTONE _ to Clayey SILTSTONE BORING TERMINATED AT 45 FEET Figure A-38, Log of Boring LB 19 ZUJ" ,.. ,.., °u . 1-,.., UI~ HZI-H. 0::"" 1-<r:1J. OOIJ. :;:)1-<1:1-' z. 0::0000 UlU I-z I-H 3 c. (J)LU HI-UlCJ)O ,..0.. Oz zUJ...l ~o::e 0::"" :i:o C u 9 107.2 21.5 16 I LCG I I I SAMPLE-SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) il§ ••• 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. 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 I-0 I-- I-2 - I-. - - 4 - SAMPLE NO. --SBl-l - 6 - '-- I-8 - - I-10 -SBl-2 ,... - -12 - '-- ,... 14 - I--SBl-3 i-16 --- I-18 - r-- I-20 -SBl-4 I-- I-22 - r-- I-24 - I--SBl-5 t-26 - I-- t-28 - I-- >-(.!) o -J o :J: 5 I~:: . I ffi I-~ SOIL ~ CLASS :::l ~ (USCS) (.!) MLlCL ML/CL ML BORING SB 1 ELEV. (MSL.) _=.;14;..;..O __ DATE COMPLETED EQUIPMENT IRA 300 MATERIAL DESCRIPTION ALLUVIUM/COll.UVIUM Soft, damp, dark yellowish-brown, Sandy SILT/CLAY, highly porous, roots TERRACE DEPOSIT Stiff, damp, pale yellowish-brown, Sandy SILT/CLAY, slightly porous 11/11/99 -Becomes dusky yellow to grayish-orange to pale yellowish-brown, with dark yellowish-orange speckles -Mottled/stained black SANTIAGO FORMATION. Very stiff, damp, pale yellowish-orange to grayish-orange, Sandy SILTSTONE, moderately to intensely weathered, poorly defined laminations Figure A-39, Log of Boring SB 1 I- I- I-9 r- r- I- I-18 r- r- r- r- I- I- I- I- I- I- I- I- I- I- l- I- 21 22 27 105.9 . .16.7 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. I I I I I I I I I I. I I I·. I I I I I I PROJECT NO 06403-12-01 0::: BORING SB 1 >-w Zw" >-" (!) I- 0 <I: °u " 1-" W~ DEPTH ...J :3 SOIL HZI-H " 0:::'"' IN SAMPLE 0 c CLASS I-<I:ll. ~LL. ::::ll-:::c Z ELEV.(MSL.) 140 DATE COMPLETED 11/11/99 <1:1-' I-Z NO. O:::CJ)CJ) W" I-::::l (USCS) C~ CJ)Ul FEET H 0 I-H:3 HI-...J 0::: llJCJ)O >-a.. Oz EQUIPMENT IRA 300 zLIJ...J (!) ~o:::e 0::: ...... ::t:o C (,J MATERIAL DESCRIPTION r-30 SB1-6 :Ht1Jl MH 16 r--T Very stiff, moist, pale, yellowish-orange to ,.. -\ grayish-orange, Sandy SILTSTONE, intensely I weathered, wet at tip of sample BORING TERMINATED AT 31.5 FEET - , -- Figure A-40, Log of Boring SB 1 LCG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ ••• 0 I STURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) Ii;] ... 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. I I PROJECTNO 06403-12-01 I I I I I I I I. I I I I I I I I 0:: BORING SB 2 >-UJ ZUJ'" >-'" (.!) l-Ou • 1-", Ul~ 0 (I: DEPTH ..J ::I SOIL HZI-H • 0::"" IN SAMPLE 0 0 CLASS 1-(l:1.L. .~I.L. :;:)1-::t: z ELEV. (MSL.) 115 DATE COMPLETED 11/11/99 (1:1-...... NO. O::cnCl) UJ· I-Z FEET I-::J (USCS) I-H::I .Oc.: Cl)lJ.I H 0 HI-..J 0:: I..LIcnO >-0.. Oz EQUIPMENT mA300 zUJ..J (.!) I..LIa:::CQ 0:: ...... ~o a.. ...... 0 u MATERIAL DESCRIPTION -0 ~/, ,--// ALLUVIUM ,-, / Very stiff, damp, dark yellowish-brown, ,-2 -/;." SILT/CLAY, porous, scattered soil carbonate, flecks - --/// and stringers - 1/ ' , I-4 -1/ Ill, I- I~ /1/ I--[,,1/ jML/CL I--SB2-1 19 I-6 -~~ l- i/ rY I--~ I- : )- I-8 -r ... !..I 1/ I- --y i ... 1/ I-/ ,II'" -10 -~~ yl/ 1/ I-SB2-2 lIlt -Becomes pale yellowish-brown 18 109.4 19.2 - - / ... /1/ -12 - .... )-" I- -~ ~~ I--j v -14 -j/, ~ TERRACE DEPOSIT - -I~ /~ -SB2-3 ~LlCL Soft to stiff, damp to very moist, duskY yellow 6 -16 -./ SILT/CLAY - /i" -Groundwater at 15 feet --/1/ -j '/ I-18 -/ ... 1/1/ I- 1/1/ I--~ I/It - - -Stiff~ wet,-ID'ottled dark-yellowish-orange,-elaS'tic - - - - - - --- I-20 -~~ 1/1/ jMLlCL SILT/CLAY -I- SB2-4 iY 25 104.3· 21.6 I--~II I- ;-22 -j/ ~ '- I--1/ ' 'It 1/ / ~ !..Iv I-24 -i'" v -V ;:1'" ,.... -[~ -SB2-5 /1/ / . 7 -26 -,Y -Becomes firm, moist to damp, dusky yellow, - / --/v mottled dark yellowish-orange, SILT/CLAY -/ ./1/ I-28 -~/I/ - /1/ I--I I 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) 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 I I I I I I I I I I I '1 I· I I I· 0:: BORING SB 2 >-UJ ZlJ.l""' >-" (.!) l-I-,,", LIJ~ 0 <I: °u . DEPTH ..J 3 SOIL HZI-H • 0:: ..... SAMPLE 0 c CLASS I-<I:IJ.. CIlIJ.. :::ll-IN NO. Z z ELEV. (MSL.) 115 DATE COMPLETED 11/11/99 <I: 1-' z. I-z I-:::l O::cn Cll LlJ U FEET H 0 (USCS) I-H 3 c. CIlLIJ HI-..J 0:: LLlcn O >-a. Oz EQUIPMENT 1RA300 zlJ.l..J (.!) lJ.Io::cc 0:: ....... :E:o a. ....... c (J MATERIAL DESCRIPTION I-30 SB2-6 1111111 ML/CL SANTIAGO FORMATION 28 I-Stiff, moist to wet, dusky yellow, mottled dark I yellowish-orange, SIL TSTONE/CLA YSTONE, highly weathered BORING TERMINATED AT 31 FEET - - I ! - Figure A-42, Log of Boring SB 2 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ •• , DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) iJ ... t;HUNK 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 I I. PROJECT NO. 06403-12-01 Ii BORING SB 3 >-ZUl"'" >-"'" (.!) °u . 1-"", UJ~ ° DEPTH ..J SOIL HZI-H. 0:"" SAMPLE 0 I-<t:u. Cl)u. ::ll-IN NO. ::t: CLASS ELEV. (MSL.) 101 DATE COMPLETED 11/11/99 <r:1-' z. I-z I-O:CI)CI) UJ u Cl)UJ FEET H (USCS) I-H:t I:l • HI-UJCI)O >-0.. ..J EQUIPMENT IRA 300 ZUl..J Oz ~~e 0:"" l1:o I:l u MATERIAL DESCRIPTION I-0 / )1, I--//V ALLUVIUM - / V Stiff, damp, dark yellowish-brown, SAND, I-2 -~~ I' SILT/CLAY - I--I/V ~ l- I-4 -~V : ,1/ l- V yV I--SB3-1 I~ 1'/ ~LlCL 1-- 16 I-6 -~; I- ~ ./ I-~ -V ~; I r 8 -1/ / I- :--~; / l- v/ I-10 -[3 ./ r 14 SB3-2 , -Trace of sand below 10 feet I--" ' ~ :- v~ -Groundwater at 11.5 feet 12 -/ '-r /' c--//~ '-./v ;-14 -~ /v/ :--I 1 /11' TERRACE DEPOSIT -SB3-3 /V MH/CL Stiff, wet, very pale orange to gray-orange 15 107.0 22.6 -16 -~ /1' SILT/CLAY - --vII' -~ IV -18 -V ~V I- -I IX I- 20 -~ ~~ I-SB3-4 [~ ,V 19 -V(, -Becomes very stiff, pale to dark yellowish-brown I- -22 -V~ ~ I' I--~ ~.I' - I-24 -.1 SANTIAGO FORMATION - I--Stiff, damp to moist, mottled dark yellowish-orange -SB3-5 ~LIML and yellowi'l.o' _"-' Sandy CLAYSTONE/SILTSTONE 17 106.1 21.8 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 '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 OT-HER 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 0:: BORING SB 4 >-LLI Z lJJ'"' >-'"' t!) ~ °u . 1-,", LLI~ 0 DEPTH ...J :3: SOIL HZI-H • 0::"" SAMPLE 0 0 1-<J:l.L. (l)l.L. ':::::1 IN :c z CLASS ELEV. (MSL.) 90 DATE COMPLETED 11/11/99 ~I-~ z. 1-1-NO. I-:::::I -I-C/):3: lJJu (l)Z FEET H 0 (USCS) lJJHO o • HLLI ...J 0:: ZC/)...J >-!l. 01- t!) EQUIPMENT IRA 300 lJJ wee 0::"" I:z 0 !l. 0:::,-, 0 u MATERIAL DESCRIPTION ,.. 0 ~X -,.. -~. ALLUVIUM ,.. 'V .V. -v Very stiff, damp, moderate brown to moderate c-2 -It Vi;/' olive-brown and brownish-black, Sandy SILT/CLAY - r--V (v:. - ,.. 4 -• T' • c-V.;V r--v' V -c- SB4-1 . V -~LlCL 18 ~ . V'. ,.. 6 --/ -' - --/. -V - 7. /i;/' c-8 -C --------------------------------------)' ... Very stiff, damp, dark yellowish-brown, Sandy SILT, -r--V~ i'" small, fmgemail sized shells i-10 -I~ " -SB4-2 /V ML 17 ,.. -Vv -~ ... r-12 -V Cv - r--.... /v ~ I-/ //1" -Groundwater at 13.5 feet .. 14 -VV I- / V l-e... -[~ " SB4-3 / 15 :.. 16 -/y -Charcoal flecks, sampler wet I- / /V -- -18 -t)~~~ TERRACE DEPOSIT I-~:?'{g Medium dense to dense, very moist to wet, ,... -~ ............... reddish-brown to brown, Gravelly, fine to coarse I- 20 -I~~t:~:}: SAND -,... I-SB4-4 :~¥~~~ SP -Coarse gravel fragments, becomes moist 25 110.8 18.1 -:- -22 -~t~~~~~ ,... --~N~~~ ,... -24 --:~:~~~~~ ---55 SB4-5 I .:":';'::":::' -Well graded, fine to coarse sand, wet, gravelly r-26 -':::: .:1>. - r--L~~~~~:~ -Mottled many colors - i-28 -~ij l- i--l- f'tH1.1{ Figure A-44, Log of Boring SB 4 LCG SAMPLE SYMBOLS o ... SAMPL~NG 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 I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I. I I I 0::: BORING SB 4 >-LU Z I.J..I"" >-" (,!) I-°u· 1-"" I.J..I~ 0 (J: DEPTH ...J ::3: SOIL HZI-H. 0::: v SAMPLE 0 0 I-(J:IJ.. Cl)u. :JI-IN :J: z CLASS ELEV. (MSL.) ·90 DATE COMPLETED 11/11/99 <l: I-"-z. I-Z NO. I-:::l tl::CI)CI) LUU Cl)LIJ FEET H 0 (USCS) . -I-H::3: 0. HI-...J 0::: !.LICI)O >0-Oz EQUIPMENT IRA 300 zl.J..l...J t!) lfo:::e3 0:::"'" :E:o 0-. u MATERIAL DESCRIPTION f-30 SB4-6 Hfl-Un ~L/CL SANTIAGO FORMATION 29 f-Very stiff, moist, yellowish-gray, Sandy I SILTSTONE/CLAYSTONE BORING TERMINATED AT 31 FEET , - Figure A-45, Log of Boring SB 4 LeG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TeST .... DRIVE SAMPLE (UNDISTURBED) IiiJ ••• 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 - DEPTH IN FEET - SAMPLE NO. -SBS-1 6 - - >-t.!) o ....J o ::c: I-H ....J 0:: L1J I-~ SOIL ~ CLASS (USCS) :::;:) ~ t.!) rvrLlCL BORING SB 5 ELEV. (MSL.) _..;...7S'--__ DATE COMPLETED 11/12/99 EQUIPMENT IRA 300 MATERIAL DESCRIPTION ALLUVIUM ,.. Very stiff, damp, light olive-gray, Sandy SILT/CLAY - - -19 I -8 - I I, I I I I I' I I I - f-10 -SBS-2 -- -12 - - - -14 - - -SBS-3 ML/CL -16 - -- '-18 - - = 20 = SBS-4 ~ fvlli/CL roo 22 - -Becomes very stiff TERRACE DEPOSIT Very stiff, very moist, light olive-brown to moderate yellowish-brown, Sandy SILT/CLAY -Groundwater at 19 feet -27 - - - 19 - - I- - SANTIAGO FORMATION _' 14 Firm, moist, dusky yellow, SILTSTONE/CLAYSTONE, highly porous, intensely I- 104.3 23.2 -M:-I-I#f.Ifl-I--,----j.-- - -~e~~c:.dl. ~~El~r .!"~~ - _ - _ - - - - - - - - - - - - - - - - ---I----I----t---.. f-24 - ML f-26 - Very stiff, wet to saturated, pale olive, fine, Sandy, SILTSTONE, with 2-4" thick, fine to medium sandstone interbeds, moderately weathered I-27 I- roo -SBS-S r.:· : .' ~-~~~~~--+-----------------------------------------~----~----~---- BORING TERMINATED AT 26.5 FEET Figure A-46, Log of Boring SB 5 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. ' I I I I I· I I I I I. I I I I I I I I I PROJECT NO 06403-12-01 0:: BORING SB 6 >-LI.1 Z·LI.1'"' >-'"' (.!) l-ou' 1-,", LLI~ ° <I: DEPTH .J :3: SOIL Hzl-H. 0::'-" SAMPLE ° '0 CLASS I-<l:u. (J)u. ::ll-IN NO. :I: z ELEV. (MSL.) 98 DATE COMPLETED 11/12199 <1:1-' z. I-z FEET I-::l (USCS) O::(/)(J) LI.1u (J)UJ H ° I-H:3: C • HI-.J 0:: EQUIPMENT IRA 300 ~(J)g. >-0.. Oz (.!) UJ LLlco 0::""" :E:o 0..0:::""" C U MATERIAL DESCRIPTION I-0 / vI' I--/~ ~ ALLUVIUM i- I/ / Very stiff, dry to damp, pale to moderate I-2 -~/ yellowish-brown, SILT /CLA Y, veined with soil l-I" -/ 1I carbonate l-I-1/ ,v I-4 -~ / r- I~ /ll . I--SB6-1 .. y MLlCL :- 28 /1/ I-6 -Vll '- [/ ,v :--~ l-V I-8 -:1-l -------------------------------------- I--l 1 -\ Medium dense, damp, dark yellowish orange, Silty -fine SAND :-10 -SB6-2 :j ~-I-SM - :.1-(.i-8 ,.... -- -12 -l 11 -.. -~'l ~-I- :1-1:1-TERRACE DEPOSIT -14 -l. i 1 I-Medium dense, damp, dark yellowish-orange, Silty, --SB6-3 I :'j .f.1-SM fine to medium SAND I- ti-21 102_8 5.0 16 -:J. l- I--T. 1-\ I- .r.-t-18 ---------------------------------------/ ",.. // Very stiff to hard, moist, dark yellowish-brown, t--/v l- t-20 -[;IY mottled olive to orange, SIL!/CLAY I-SB6-4 v~~ ML/CL 25 I--1/ ... v - I-22 -~V~ - VlI :-- -24 -SANTIAGO FORMATION -MLlCL Very stiff to hard, moist, pale olive, --I SILTSTONE/CLAYSTONE, moderately weathered -SB6-5 27 108.3 19.5 -26 BORING TERMINATED AT 26 FEET NO GROUNDWATER ENCOUNTERED Figure A-47, Log of Boring SB 6 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 I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 0:: BORING SB 7 >-W ZLLI'"' >-r.. (!) l-OU· 1-"" w~ 0 <t DEPTH ..J ::J: SOIL HZI-H. 0::"" SAMPLE 0 0 I-<t:u. CJlu. :;:)1-IN ::I: Z CLASS ELEV. (MSL.) 170 DATE COMPLETED 11/12/99 <tl-' z. I-Z NO. I-:;:) O::(J)CJl Wu CJlUl FEET H 0 (USCS) I-H::J: 0. HI-..J 0:: W(J)O >-Q.. Oz (!) EQUIPMENT IRA 300 zLLI..J 0::"'" :E:o ~~e 0 (.) MATERIAL. DESCRIPTION I-0 J 1:1_ I--l-~ 1 ALLUVIUM I- Loose to medium dense, dry, light olive":brown, Silty, I--2 -Jt-!-fme to medium SAND, porous, rootlets l- I---:1· l I-- I-4 -l~ -I I-- -:j ~'I----·r· r- SB7-1 1:1· l SM 11 -6 -l~ -I I-- --:'j rt-I-- : f-8 -:1-."1-l- f--l~ -I r- f-lO -J t-t-I--5.0 SB7-2 1:1. :1-22 93.0 --l~ -I -Becomes non porous, medium dense I-- :-12 -:j .t·l_ I- '---·r· I--:1· ."1-l'I-1 - f-14 -I-- f--(I ~'I' I- SB7-3 13 r 16 -·tr:l--Laminae, spaced approximately 6" apart I- r-- :'j t·t-r- t-18 -I-- I--:1· .,-"1- :1· .""1- I-20 -Il~ -I TERRACE DEPOSIT I-- SB7-4 SM Medium dense, humid, grayish-orange, Silty, fme to 21 92.4 5.4 I--:j t t· medium SAND r--·r I-22 -:1· l l- I--l-~ 1 l- I-24 -:'] r t-I- '1. ."1-I--SB7-5 .. -l-~ 1 I-22 I-26 -I :'j ~·t-l- I--:1· l l- I-28 -'1".-1-1 I- r--:"1 } t· I- '-1. ."1- Figure A-48, Log of Boring SB 7 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 CONDITIONS AT OTHER LOCATIONS AND TIMES. I I PROJECTNO 06403-12-01 I I I I I I I I I I .1 I I I I I I DEPTH IN FEET r 30 I-- I-32 - r - SAMPLE . NO. SB7-6 >-(!) 0 ...I 0 ::t: I-H ...I rtq' :'1 r t· :1-1·~1· 0:: UJ l-<I: :::I SOIL 0 Z CLASS :::;) 0 (USCS) 0:: (!) SM BORING SB 7 ELEV. (MSL.) 170 DATE COMPLETED EQUIPMENT IRA 300 MATERIAL DESCRIPTION Medium dense, hpmid, very pale orange to grayish-orange, Silty, fine to medium SAND 11/12/99 r ZUj" >-'" °u' 1-" UJ~ HZI-H. 0::'-" I-(CLI.. cnu. :::;)1-<1: ..... ' z. I-z O::encn UJ u cnUJ I-H:::I 0, HI-UJeno >-0... Oz zUj...l ~o:::e 0:: ...... ~o 0 u 25 95.6 7.3 I-34 -Frf.,>t-+f--I-----+ - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---+---1 [v.~~ . r -SB7-7 r 36 - I-- I-38 - r - v.~/ v.' ;/ vI( ;. '11' . v..j' 'V. I'Y Y I': V ML/CL Hard, damp, moderate yellowish-:brown, Sandy SILT/CLAY, stringers ofsoU carbonate . ;-52 - - - - -40 -SB7-8 ~I.l ..... ·~'/r·;--I-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---+---1 II~ • ~(ML Hard, damp to moist, mottled yellowish-oranges, _ 56 108.1 11.0 -- -42 - II dusky yellow, SILT, fingernail sized shell fossils --I) ( - """"',.<-++-l----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----1---+---1 v~ ;. -44 - --SB7-9 v.~" r;V,;.- ~~.'/. v.~'/ 'V -46 - I-- I-48 - I-- I-50 -~B7-10 I I- ~/CL ~LlCL 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/CLA YSTONE BORING TERMINATED AT 51 FEET NO GROUNDWATER ENCOUNTERED Figure A-49, Log of Boring SB 7 r I-13 I- r I- -I-31 107.8 21.0 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBE.D) ~ ... 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 0:: BORING SB 8 :>-UJ ZUl'" :>-'" t!) l-Ou • f-", UJ~ ° <J: DEPTH ...! ::3: SOIL HZI-H. 0:: ...... SAMPLE ° C 1-<eLL. cnLL. =>1-IN :I: Z CLASS ELEV. (MSL.) 110 DATE COMPLETED 11/16/99 <1:1-' z . I-Z NO. O::CI)cn UJu FEET l-=> (USCS) I-H::3: C • cnUJ H 0 HI-...! 0:: UJCI)O :>-0-Oz EQUIPMENT IRA 300 ZUl...! t!) ~o::e 0::: ...... ll:o C u MATERIAL DESCRIPTION I-0 'V -V' .1/' ALLUVIUM l-t-,'" , v.~ V Firm, damp, dark yellowish-brown, Sandy t-2 -lY \;i SILT/CLAY, porous, roots t- t--'II t-~V v' I-4 -V. 'v I- l;I IIv , I-~ SB8-1 I-I~ V, ~LlCL 14 108.S. 13_6 . ,Il' t-6 -"'-- 1/-V l-I---V l(v Ii' , t-8. -V' Il-~ I--[,I-I-V. -V ~ I-10 -lY v) -Groundwater at 9 _S feet I-SBS-2 I -I(; 14 I--V -Becomes stiff -[,I- -12 -V. -./ ~ l( v) ~ --~.;-~ -14 -V. [,I--Becomes very stiff to hard, moist, mottled dark --./ --I~ v) MH/CL yellowish-orange, pale olive and dark -SB8-3 ~.;, yellOWish-brown, SILT/CLAY 31 113.9 18.2 -16 -~ - [,I' --V. -./ -V, I-18 -------------------------------~-------, · , , Firm, moist, grayish orange to dark yellowiSh-orange, -, I- , Sand7t SILT I-20 -.. , , t- SB8-4 , ML 8 , I--· , I--, I-22 --I-- I---I---· -Stiff, moist, dusky yellow, mottled dark I-24 -'-l-. yellowish-orange, Sandy SILT, some fine sand, -I--SB8-S -moderately to intensly weathered t-21 103.8 23.5 . -I-26 -l-· --Becomes clayey - I--. I- -I-28 -. I---· . I--I--- Figure A-50, Log of Boring SB 8 LCG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) IiW '" 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 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 I I PROJECT NO. 06403-12-01 DEPTH IN FEET I-30 i-- i-32 - SAMPLE NO. >-t!) 0 ...l 0 Z I-H ...l SB8-6 I. ". . '. .. 0::: UJ I-<I: 3 SOIL 0 CLASS Z ::l (USCS) 0 0::: t!) IM;L/CL BORING SB 8 ZUl"" >-"-°u . 1-"" UJ~ HZI-H. 0:::'""' 1-<t:LI.. OOu. ::lI-ELEV. (MSL.) 110 DATE COMPLETED 11/16/99 <1:1-' ffi· I-z O:::CI)OO O~· OOUJ I-H 3 HI-UJCI)O >-0-Oz EQUIPMENT IRA 300 ZUl...l ~e:::e 0:::'"' l::o 0 U MATERIAL DESCRIPTION Firm, moist, light olive gray, Sandy _ 11 SILTSTONE/CLA YSTONE, intensly weathered - i--I-'-'-":~'T-;----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1-----+---+----1 ~ ~~ r 34 -Very stiff, moist, olive black, plastic CLAY, _ moderately weathered i--. SB8-7 -CH 18 !-36 BORING TERMINATED AT 36 FEET Figure A-51, Log of Boring SB 8 LCG 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 I I I I I I I I 0:: BORING SB 9 >-lLI ZlLI ..... >-,..., t!) I-°u' 1-..... lLI~ 0 <t DEPTH ...J :::3: SOIL HZI-H • 0::'"' IN SAMPLE 0 1:1 CLASS ~<t~ (/)u. ::ll- NO. ::I: z ELEV. (MSL,) 134 DATE COMPLETED 11/16/99 a::1-(/) z. I-z UJu FEET I-::l (USCS) 1-(/):::3: c • (/)UJ H 0 WHO HI-...J 0:: EQUIPMENT IRA 300 z(/)...J >-a. Oz t!) UJlLIaJ Q::'"' :1::0 c.,Q::""" C U MATERIAL DESCRIPTION 0 --· --AllUVIUM ---, Stiff, dry, dark yellowish-brown, Sandy SILT 2 ---. ------· --- 4 --c- --r c-- SB9-1 ML 11 6 -r- -I---c--: -I-8 --. ---------------~----------------------· -Medium dense to stiff, damp, grayish-orange, Sandy -I-----SILT, Silty, fine SAND I-10 --SMIML :- SB9-2 -16 100.7 11.7 --'--· ---- I-12 ---- I-----------------------------------------',)'. ;r Very stiff, damp, pale yellowish brown, Sandy ~ 14 -'v - /-,/ SILT/CLAY ,... -17. // MLlCL -SB9-3 ,/-~ 17 -16 -',)' .. T -Groundwater at 16 feet - -;/ -- -/-/ --/ -18 -'/ / --v - r--1/ . 1)'-r-1/- IV. -1,/ c-20 -vv -I- SB9-4 ~ -Becomes damp to moist, dark yellowish-brown, some 21 t--~ v-I-'1/" fme sand r-22 -1/-roo 1/-1/ '1/ v i--17 I--v V'-c-24 -~~ roo t--1/ -l/ SB9-5 :1· ."\-SM/ML 13 -26 -l-~ -, TERRACE DEPOSIT -Medium dense, moist to wet, dark yellowish-orange, :--:'1 t'l-light olive-gray, grayish-orange, alternating 1-2" thick - -28 -:1-'"I-beds of Silty SAND and SILT - --l1-, -:~ t l- Figure A-52, Log of Boring SB 9 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 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 0:: BORING SB 9 >-UJ ZIJJ'"' >-'"' (.!) l-Ou • 1-", UJ~ 0 <J: DEPTH ...J 3 SOIL HZI-H • 0::'""' SAMPLE 0 0 CLASS I-<I:u. Cl)u. ::;)1-IN NO. z Z ELEV. (MSL.) 134 DATE COMPLETED " 11/16/99 <J: I-"-z. I-z I-::;) (USCS) O::cnCl) UJu Cl)UJ FEET H 0 I-H 3 0. HI-...J 0:: UJ'cn O >-a.. Oz EQUIPMENT 1RA300 zlJJ...J (.!) ~c::e 0::'"' E:o 0 u MATERIAL DESCRIPTION i-30 SB9-6 // CLICH 26 110.8 20.7 Very stiff to hard, moist, mottled dark r 1\ yellowish-orange, pale olive, very pale orange, CLAY / -Becomes olive black at 31 feet' BORING TERMINATED AT 31 FEET - , - - Figure A-53, Log of Boring SB 9 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMP.!-E (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 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 0::: BORING SB 10 >-w Z wI"> >-I"> t!) l-ou' 1-"" w~ ° <I: DEPTH -I :3: SOIL HZI-H. 0::: ...... SAMPLE ° 0 CLASS I-<1:1.1.. CJ)u. :::ll-IN ::J: Z ELEV.(MSL.) 118 DATE COMPLETED 11/16/99 <J: I-' Z. I-Z NO. I-:::l (USCS) O:::cnCJ) WC,.) CJ)UJ FEET H ° I-H:3: o • HI--I 0::: UlcnO >-0.. Oz EQUIPMENT m.A300 Zw-l t!) lfo:::e3 0::: ...... :2::0 0 (.) MATERIAL DESCRIPTION ~ 0 , , 0, , ALLUVIUM --. r , Very stiff, damp, dark yellowish-brown, Sandy SILT, -2 -, highly porous, roots r , ML , , ~ -o , -: . , -4 -. - , --~BI0-1 II: -", 1 ''II': .0 .. 1()Q , --------------------------------------~ :'0 , -6 -o , Medium dense, damp, grayish-orange, poorly graded, -, SP/SM --, , fine to medium SAND/Silty SAND -, . , . , 8 , --l~ , -------------------------------------- --"II v:' Very stiff, damp to very moist, dark and moderate I-/'V v y yellowish-brown, alternating 6" to l' thick Sandy -10 -~B10-2 [ SIL TS/CLA YS r 20 v.'v V = MUCL -Groundwater at 10 feet --i/o 0 v' I- °V -12 -~V v I- ----------------------------------------:1· l 14 --r.1 'I Loose to stiff, moist to wet, moderate !-yellowish-brown, Silty, fine SAND, fine, Sandy SILT -~B10-3 1:0 1 r t, ML/SM '- 106.7 23.7 13 I-16 -:J.-} '- I--"1",1 'f - r-18 -,) {oj' :~ ....... : I--. -~~ ..• :.: .. :::.~ TERRACE DEPOSIT I-0.:: .-:_. SW Dense, wet to saturated, grayish-orange, well graded, : ... :.-:,- r-20 -SB10-4 r:·>{:~ fme to coarse SAND I-- -Gravelly, clayey sand, mottled yellowish-oranges 42 I--: ••• : •• 0: r-22 -SANTIAGO FORMATION l-Very stiff, moist, light olive-gray, CLAYSTONE, '--CL moderately weathered, carbonate lined laminae I- '-24 -I- --~B10-S I r"SO/S" -Becomes very hard, damp, pale olive, slightly 118.3 15.3 -26 \ weathered, "bentonitic/soapy" texture J BORING TERMINATED AT 26 FEET Figure A-54, Log of Boring SB 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. I I PROJECTNO 06403-12-01 I I I I. I I I I I I I .. I I I I I I ~ BORING SB 11 >-IJJ zUJ ..... >-" t!) l-Ou ' 1-"", IJJ~ ° <I: DEPTH ....J :::t SOIL HZI-H, ~"" SAMPLE ° 0 CLASS I-<t:u. (J)u. =>1-IN NO. :::I: z ELEV. (MSL.) 153 DATE COMPLETED 11/16/99 <1:1-' z, I-z l-=> (USCS) ~(J)(J) lJJ u (J)UJ FEET H 0 I-H:::t 0, HI-....J ~ IJJ(J)O >-0.. Oz EQUIPMENT IRA 300 zUJ....J t!) ~o::e 0:: ...... ';:0 0 U MATERIAL DESCRIPTION -0 -- I--i/-V ALLUVIUM --7" v.-·v Stiff, dry, pale yellowish-brown, mottled dark I-2 -v_ yellowish-orange, Sandy, Clayey SILT, highly porous, -17 y I--~X. scattered white soil carbonate -,;:- V I-4 -v.-"v I- rv.' V)I' " r--~Bl1-1 l- II ~.?' ML 9 r-6 -L -IY-r- v.--v I--V_ r-l( y I-8 - lll(. --------------------------------------- I--';:" Very stiff, damp, pale yellowish-brown, Sandy l-V V. -v SILT/CLAY, slightly porous I-10 -SBll-2 v_ ~L/ct r-25 Il( Vr: 116.5 17.2 r--II . /I" l- I-12 -'y' I-!;I" v "V ~ r--7' I--v- )". /I" . -I-14 --v r- ( "v I--~Bll-3 Vv :... 25 116.5 17,2 ! :... 16 -( / :" ~ 'II ,.--/. y--"v I-18 -;( /V - t" t i--::t:1::f: SANTIAGO FORMATION '- -20 -r" of" Very dense, damp, grayish-orange, mottled olives, -~Bl1-4 " " " ::f:j::~: SM Silty, fme to coarse SANDSTONE, moderately 50/4.5" 111.2 11.5 :... -weathered -::t: ::f: -Cemented -22 -"tty I- .. ~~: t-" .. " --....... " .. -------------------------------------- -24 -Hard, dry, olive, mottled browns, CLAYSTONE; I- slightly to moderately weathered . -SBll-5 I I-CH 35 26 -I ,.... BORING TERMINATED AT 26.5 FEET ~ Figure A-55, Log of Boring SB 11 I 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. , ! I I I I I I I I I I I I 1- I I I. I I I PROJECT NO. 06403-12-01 0:: TRENCH T 1 )0-w zUJ ...... >-...... CD I-°u· I-~ wX 0 <I: DEPTH ...J ::3: SOIL HZI-H • 0:: .... SAMPLE 0 0 ~<I:~ CIlu. ::JI-IN ::I: Z CLASS ELEV. (MSL.) 125 DATE COMPLETED 11/3/99 o::·l-cn z. I-Z NO. UJ U · FEET I-::J (USCS) I-CIl::3: C. cnw H 0 UJHO HI-...J 0:: EQUIPMENT TRACKHOE JD 555 2411 ZCll...J >-0.. Oz CD UJUJ ec 0:: .... :1::0 0..0:: ..... C U MATERIAL DESCRIPTION -0 ~ c--COLLUVIUM I-CL Very stiff, dry, brownish black, Sandy C~A Y -2 -l- --.% · · . · AllUVIUM -4 -· l-. Very stiff, dry, light olive brown to dusky yellow, --· Sandy SILT with lenses of brownish black clay up I-T1-1 · ML · · to 2 feet thick, highly porous, abundant soil -6 -· . ,... · carbonate · --. -, · -8 -· -· · · . · ---· . -10 -· -· --::t:f:t. T1-2 SM SANTIAGO FORMATION -12 -T· ~ -:: :j:: .. : 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 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. I I PROJECTNO 06403-12-01 I I I I I I I I I I I· I I I I I I 0:: TRENCH T 2 >-UJ ZIJJ'" >-,.., t!) l-Ou . 1-", UJ~ ° <I: DEPTH ..J :3: SOIL HZI-H. 0::'" SAMPLE 0 0 1-<r:LI.. CJ)LI.. =>1-IN ::J: z CLASS ELEV. (MSL.) 105 DATE COMPLETED 11/3/99 <I: I-" Z. I-Z NO. l-=> O::cnCJ) UJu CJ)w FEET H 0 (USCS) I-H:3: o • HI-..J 0:: lJ.I cn O >-0-Oz t!) EQUIPMENT TRACKHOE JD 555 24" zlJ.I..J 0::'" ~o ~o::e 0 u MATERIAL DESCRIPTION -0 ~~ . I--"II v' COLLUVIUM I- v.~ V Very stiff, dry, brownish black, Sandy I-2 -v SILT ICLA Y, some fme grained sand, highly I- [(1/ I--~v. porous, abundant sea shells I-L-:V CL I-4 -v.~ V ~ bi -I--17 I--1/ V-I-6 -L-:V I--It' I--v.-V I') ( Very stiff, dry, light to moderate olive brown, I-~ 8 -I~ ( MH SILT, some fine sand, highly porous ~ -I- 10 -t · 'f·'''t SM · .. • "j" SANTIAGO FORMATION -:"t· ·:f= ~ . :f Dense, dry, dusky yellow to dark yellowish orange, · . .. " .. " ~ 12 · . Silty, fme to medium SANDSTONE "- TRENCH TERMINATED AT 12 FEET - Figure A-57, Log of Trench T 2 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 I I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 ~ TRENCH T 3 >-UJ zw ..... >-~ t!) l-Ou • 1-..... UJ~ 0 <I: DEPTH -l ::3: SOIL· HZI-H. ~ ...... SAMPLE' 0 CI CLASS I-<J:u. C/)u. ::ll-IN :I: z ELEV. (MSL.) 135 DATE COMPLETED 11/3/99 <1:1-' z. I-Z NO. I-::J O::(J)C/) UJu CIlUJ FEET H 0 (USCS) I-H::3: CI • HI--l ~ UJ(J)O >-c.. Oz EQUIPMENT TRACKHOE JD 555 24" Zw-l t!) ~o::e 0:: .... :E:o CI u MATERIAL DESCRIPTION f-0 /,/Vv ,... -~~~y CL COLLUVIUM i-//V~ Stiff, dry, dark yellowish brown, Silty CLAY, -2 -.. "-some fme sand, highly porous, abundant rootlets / T3.-1 ML SANTIAGO FORMATION ,... -- '.' Medium stiff to stiff, damp, mottled oranges, ,... 4 -olives and browns, Sandy SILTSTONE, abundant - --: rootlets and s9n carbonate, highly weathered -.. -6 TRENCH TERMINATED AT 6 FEET , - - Figure A-58, Log of Trench T 3 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 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 >-C!) 0 DEPTH ...J SAMPLE IN 0 :c: NO. FEET I-H ...J c-O ~ c-- ~ 2 - - I-4 -T4-1 I-- I-6 - I-- I-8 - -- r-10 - - SOIL CLASS (USCS) CL CL TRENCH T 4 ELEV. (MSL.) 190 DATE COMPLETED 11/3/99 EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION COLLUVIUM Very stiff, dry, pale yellowish brown, CLAY, some fme sand / "-~~--~~~~------------------------------/ SANTIAGO FORMATION Stiff, damp, greenish gray , CLAYSTONE with fme SAND, fractured, random orientations, moderately. weathered, massive -Less fractured, slightly weathered -Contact undulatory, but generally horizontal, poorly defined Sandy CLAYSTONE . TRENCH TERMINATED AT 11 FEET Figure A-59, Log of Trench T 4 ZUJI"'\ >-1"'\. 0(.,) " \:i"" LLl X HZI-r::t::'"' 1-<I:Ll-(I)" zu. ::JI-<J: I-"-r::t::encn w" I-Z ~~ cnl.Ll I-H 3 HI-LLlenO Z LLl...J Oz LLlo::a::l :E:o a.. '"' c.J - - I- f- 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. -- I I PROJECTNO 06403-12-01 I I 1 I .1 I I I I 1 I I I I I I 0:: TRENCH T 5 >-LU zUJ ..... >-..... (,!) I-0 <I: °u . 1-..... LU~ DEPTH ..J ::3: SOIL Hzl-H • 0::"'" IN SAMPLE 0 0 CLASS I-<I:IJ.. (J)IJ.. ::ll-NO. :I: z ELEV. (MSL.) 165 DATE COMPLETED 11/3/99 <I: 1-' z. I-z I-::l O::cnCl) LUU FEET H 0 (USCS) I-H~ c . cnUJ HI-..J 0:: UJcnO >-c... Oz (,!) EQUIPMENT TRACKHOE JD 555 2411 zLU..J ~o::e 0::"'" :E:o C u MATERIAL DESCRIPTION I-0 VVV I--~~ COlLUVIUM :... ~~ Stiff, dry, pale to dark yellowish brown, Silty I-2 -~tt CL CLAY, some flne to medium sand - I--//V - I-4 -~~~ -//V -I--· ~ 't' · .. 6 : .. -j.: SANTIAGO FORMATION -I--r' f · .. Loose, dry, very pale orange, Silty, flne to medium · .. . .. . ~ ... -SM :... -• f T SANDSTONE, weathered, approximately -';f' · -t-." ~ horizontal, undulatory lower contact -8 -· .. -· .. ::(:~::~: ~ --· ...... --------------------------------------~IHlll MH Stiff, dry to damp, light olive-gray SILTSTONE, r-IO 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 PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) iJ ... CHUNK SAMPLE ~ ... WATER TABLE OR SEEPAGE =-. NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT THE SPEC1FIC 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 0:: TRENCH T 6 >-UJ ZLIJ~ >-" C,!) I-ot.) • 1-"" UJ~ 0 <I: DEPTH .J ::I SOIL HZI-H. 0::'"' SAMPLE 0 c CLASS I-<t:u.. (/)1.1.. ::ll-IN :I: Z ELEV. (MSL.) 230 DATE COMPLETED 11/3/99 <I: 1-' z. I-Z NO. I-::l 0::(1)C/) UJu (/)UJ FEET H 0 (USCS) !-H::I C. HI-.J 0:: UJ(I)O >-0.. oz EQUIPMENT TRACKHOE JD 555 24" zLIJ.J t!) UJc::co 0::'"" li:o 0.. '"' C u MATERIAL DESC:R,IPTION I-0 ~~ll ~L/ML LANDSLIDE DEBRIS I--~lIl , Stiff, dry, pale yellowish brown, SILT/CLAY, r \ I I-2 -1/[/ \ some fine and medium sand, abundant rootlets, I I- I/r)/ \ porous I I--~----------------------------------, I--~VI" ML Stiff, dry, greenish gray to grayish olive, very I-4 -VV Clayey SILT; weathered fractured, abundant I-l/jY V I.--calcium sulfate and carbonate, mottled dark I--I~ yellowish orange, scattered roots I-6 --Grooved, slip plane, N80E, 45 degrees N. r CL SANTIAGO FORMATION I--Hard, damp, medium to light olive, very "Silty l- I I-8 CLAYSTONE -Thin calcium sulfate (gypsum) coatings along blocky fractures TRENCH TERMINATED AT 8 FEET - - Figure A-61, Log of Trench T 6 LeG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ~ ••• 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. I I . PROJECT NO . 06403-12-01 I I I I I I I I I I I I I I I, I I 0:: TRENCH T 7 >-UJ Zw'"' >-"..., C!) I-0 (J: °u . 1-"..., LI.I~ DEPTH ..J :3: SOIL HZI-H. 0::'"" IN SAMPLE 0 0 CLASS I-<e:LL (J)LL ::::ll-NO. ::J: z ELEV, (MSL.) 210 DATE COMPLETED 11/3/99 (J: I-" Z • I-z I-::::l 0:: en (J) LI.IU FEET H 0 (USCS) I-H:3: O. (J)UJ HI-..J 0:: TRACKHOE JD 555 24" UJeno >-0.. Oz C!) EQUIPMENT Z w..J 0::'"" :£:0 ~Q::e 0 u MATERIAL DESCRIPTION r-0 / ", '--VII,; ~L/CL COLLUVIUM I-i,F/ Stiff; dry, moderate yellowish brown, CLAY/SILT, -2 -VI( " " abundant rootlets --/" LANDSLIDE DEBRIS I-'l>' V.V / Stiff, dry to damp, light olive gray to greenish -4 -;; gray Sandy SILT/CLAY, massive, moderately to I- --l(v highly fractured and weathered, "punky"/mottled ~ V' . ~" appearance with "blebs" of Sandy material, porous, 6 'IV abundant soil carbonate and sulfate (gypsum) --Y.'; V - --~,; V MLlCI;. - ). v:" -8 -'y -' - - /. ;~ -Abundant randomly-oriented fractures and clay - 7./ bI seams -10 -). l/" - ',I ---/. ;~ I-12 -7 V I-",I /" I--), I-·V I-14 -/"V -Approx. 2-3 feet transition to near-horizontal I contact I--~L-ML SANTIAGO FORMATION l- I-16 -Hard, damp to moist, olive to brown, Silty '- CLAYSTONE "--Massive to horizontal / TRENCH TERMINATED AT 17 FEET - -- Figure A-62, Log of Trench T 7 I 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. : I. I PROJECT NO. 06403-12-01 I I I I I I I I I I I I I I I I I 0: >-w t!) I- DEPTH 0 <t SAMPLE ..J :::I IN 0 Cl NO. Z Z FEET I-::l H 0 ..J 0: t!) I-0 I-- I-2 - I--T8-1 c.... 4 - '-- -6 - r- SOIL CLASS (USCS) ML ~LlCL TRENCH T 8" ELEV. (MSL.) 250 ----'--'----DATE COMPLETED EQUIPMENT TRACKHOE JD 5552411 MATERIAL DESCRIPTION COll.UVIUM Stiff, dry, pale yellowish brown, SILT, some fine sand, rootlets, soil carbonate SANTIAGO FORMATION Stiff, dry, light brown, light olive gray, light olive brown, predominantly Sandy - 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. Z lJ.I'"' >-'"' °u . 1-,", w~ HZI-H. 0:'-' I-<I:IJ.. C/)IJ.. ::ll-11/3/99 ~I-~ .z w' I-z I-U'l:::I . Cl~ C/)w WHO HI-zU'l..J >-0.. Oz UJ lJ.Icc 0::'-' I:o 0..0::,-, Cl U LCG SAMPLE SYMBOLS D ... 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 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 0:: TRENCH T 9 >-LLJ Zw"'" >-,.... C.!) I-ot.) • 1-,..., LLJ~ 0 <I: DEPTH ..J :3: SOIL HZI-H • 0::'"' IN SAMPLE 0 0 CLASS I-<I:u. CJ)u. ::::ll-NO. ::c z ELEV. (MSL.) 155 DATE COMPLETED 1113/99 <I: I-"' z. I-z I-::::l O::CJ)CJ) LLJe.,) FEET H 0 (USCS) /ii H 6 o • cnLLJ HI-..J 0:: EQUIPMENT TRACKHOE JD 55524" zCJ)..J· >-0.. Oz C.!) wWa;} 0::'"' L:o a.. 0::,", 0 e.,) MATERIAL DESCRIPTION r-0 )? /( ML I--TOPSOll. ·t~··t Stiff, dry, moderate yellowish brown, SILT, r-2 -§ ~:t:~:~f: SM abundant rootlets -T9-1 r--::f:~::t· SANTIAGO FORMATION -.. ~. Medium dense, dry, yellowish gray, fine, Silty I-4 -:t ':t SANDSTONE, slightly weathered, random I-T9-2 m ::c:1::~: fractures less than 2" apart, carbonate lined I--Horizontal contact at 3 feet .. -Becomes very pale orange, Silty, fine to medium SANDSTONE TRENCH TERMINATED AT 5 FEET - Figure A-64, Log of Trench T 9 LCG SAMPLE" SYMBOLS [J ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST II ... 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 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 I PROJECT NO DEPTH IN FEET I-0 I-- I-2 - I-- I-4 - SAMPl.E NO. -TlO-l I-6 - r - r 8 06403-12-01 ',' ',' a:: >-IJJ ~ ~ ...l :3: SOIl. ~ ~ Cl.ASS 8 ~ (USCS) (.!) ML/SM' TRENCH TI0 ELEV. (MSL.) --=2=6-=....O __ DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION TOPSODJCOLL~ Stiff, moderate yellowish brown, Clayey, fIne to medium SAND SANTIAGO FORMATION Stiff, dIy to damp, fme, Sandy SILTSTONE/Silty SANDSTONE, upper 6" cemented and fossiliferous; underlain by 6" thick, dark yellowish orange, bed dipping approx. N-S/SW, beds below are very pale' orange and between 6 n and l' thick, moderately weathered, soil carbonate TRENCH TERMINATED AT 8 FEET Figure A-65, Log of Trench T 10 11/3/99 - - l.CG SAMPLE SYMBOLS o ... SAMPl.ING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPl.E (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 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 r- r- r- - I- - - I- - ;- r- - - DEPTH IN FEET a 2 4 6 8 - - - - - - - - - IO - - 12 SAMPLE NO. >-(!) ° ...l ° ::r: I-H ...l 0:: lJ.I l-<I: :3: Cl z ::J ° 0:: (!) TRENCH Tll SOIL CLASS ELEV.(MSL.) 225 DATE COMPLETED 11/3/99 (USCS) EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION TOPSOIL Stiff, dry, moderate yellowish brown, Clayey, fme ,~~to~m=e=di~wn~S~A~N~D=-__________________________ J/ SANTIAGO FORMATION Stiff, damp, light olive gray, SILTSTONE/CLA YSTONE, highly weathered, grades downward to fine, Silty SAND below 4 feet MLlCL SM -Bedding plane dips parallel to above TRENCH TERMINATED AT 12 FEET Figure A-66, Log of Trench T 11 zw ...... >-,... Ou • 1-...... lJ.IX HZI-H. 0::'-" I-<t:u. (/)u. ::JI-<1:1-' z. I-z o::(/)C/) lJ.Iu C/)UJ I-H:3: Cl • HI-lJ.I(/)O >-Q. Oz Zw...l lfo::S 0::'-" :£:0 C U I- I- I- I- r- I- - LCG SAMPLE 'SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) ii;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. I' I· PROJECT NO I I DEPTH IN FEET I : 0 _ - 2 -I ~ - I I I I I I I I I· 1 '-4 - - - - 6 - -- - 8 - -- -10 - -- -12 SAMPLE NO. 06403-12-01 >-(!) ° ...! 0 ::I: I-H ...! /v' V // 1 / VI //1 //~ / V // V // .. . . Q:: W l-<J: 3: SOIL C CLASS Z ::l (USCS) ° Q:: (!) MLlCL ML TRENCH T12 ELEV. (MSL.) 165 DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION COLLUVIUM Stiff, dry, brownish black, SILT/CLAY, abundant rootlets below 3 feet, abundant soil carbonate, becomes dusky yellow, "punky", transitioning to formational below 5 feet SANTIAGO FORMATION Stiff, dry to damp, light olive gray, Sandy SILTSTONE, massive, scattered, random, discontinuous closed joints TRENCH TERMINATED AT 12 FEET I Figure A-67, Log of Trench T 12 ZLLJ"" >-"" Ou • 1-"" UJ~ HZI-H • Q:: ..... I-<I:u.. Cl)u.. ::ll-11/3/99 <1: .... '\. Z. I-z Q::cnCl) Wu Cl)LIJ I-H3: C. HI-UJcnO >-c.. Oz zLLJ"'! ~c::e Q:: ..... l!:o C U - - ~ ~ ~ ~ ~ ~ LCG I I SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TE~T ..... 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 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 0:: TRENCH T13 )-UJ t.!) I-ZUJ'"' )-,.... a <I: au • 1-,.... UJ~ DEPTH ..J ::3: SOIL ~z:t;: H. 0:: ..... IN SAMPLE a 0 CLASS <I: <1:, (J)\.L. :;:)1-NO. :J:. z ELEV. (MSL.) 140 DATE COMPLETED 11/3/99 0::1-(/) z. I-z FEET I-::l (USCS) l-en::3: UJ u (/)UJ H a UJHa 0. HI-..J 0:: EQUIPMENT TRACKHOE JD 555 24" zen..J )-0-a z t.!) UJUJtO 0:: ..... E:a O-c::: ..... 0 u MATERIAL DESCRIPTION '-0 V --V~/ COLLUVIUM r [/ / ~LlML Stiff, dry, brownish black, SILT/CLAY, fine roots -2 -~~ / i- --r/V1 ;- /1'/ -4 -/VV/ -Becomes dusky yellow, "punky", abundant soil -/V carbonate -i-- I-6 -SANTIAGO FORMATION -CL Stiff, dry to damp, light olive gray (mottled dark l-. -yellowish orange to 7 feet) Sandy CLAYSTONE, l- I-8 -massive, scattered, random, discontinuous closed I-joints I- TRENCH TERMINATED AT 9 FEET - Figure A-.68, Log of Trench T 13 r LCG SAMPLE· SYMBOLS [J ... SAMPLING UNSUCCESSFUL 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. I ! I I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I 0:: TRENCH T 14 :>-UJ ZUJ""' .:>-'" t!) l-Ou • 1-,,", UJ~ 0 <I: DEPTH ..J ::I SOIL HZI-H. 0::'"" SAMPLE 0 C I-«:LL. (J)LL. =>1-IN NO. ::I: Z CLASS ELEV. (MSL.) 95 DATE COMPLETED 11/3/99 <I: 1-' z. I-z l-=> (USCS) O::cn(J) UJ u ~L1J FEET H 0 I-H::I C. ..J 0:: UJcnO :>-0.. 01-· t!) EQUIPMENT TRACKHOE JD 555 24" zUJ...J :E;z ·~lXe 0::"" 0 C u MATERIAL DESCRIPTION i-0 -/ " ,.. -)', v:' .COLUMUM _. ';/ MLlCL /"v Stiff, dry to damp, dark yellowish brown, Sandy -2 -',t', SILT/CLAY -7 V '--"/ " -?', i/" ';/ -Becomes moist, medium stiff I-:-4 -/. ;~ - :--It v I-"/ " :-6 -V'-v" I-';/ V"v Wet, soft f--',t', I- 17 y :-8 -~~ v" l- f--V "V I-Vv V "-10 -,tI -Becomes saturated, very soft I-~~ V f--II f-12 -CH SANTIAGO FORMATION I- ''Y Firm, wet to saturated, pale olive CLAYSTONE, :-" highly weathered, "punky" ./ TRENCH TERMiNATED AT 13 FEET STANDING WATER AT 13 FEET -CAVING BELOW 8 FEET - Figure A-69, Log of Trench T 14 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 I· I 1 I I I I I. I I I. I I I I 1 I PROJECT NO 06403-12-01 0:: TRENCH T 15 >-UI ZUI" >-" t!) ~ cu' ~" U1~ 0 <I: DEPTH -l ::3: SOIL HZ~ H. 0::'"' SAMPLE 0 0 CLASS ~<I:u. enU. ::l~ IN ::I: z ELEV. (MSL.) 115 DATE COMPLETED 11/3/99 <I:~' z . ~z NO. ~ ::l 0:: 00 en U1 U OOU1 FEET H 0 (USCS) I-H::3: o • H~ -l 0:: UI 000 >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zLIJ-l t!) ~o::e 0::"" 1:0 0 u MATERIAL DESCRIPTION -0 ~ --COLLUVIUM i- Stiff, humid, dark gray-brown, Sandy CLAY, with -2 -CL some silt i- - -~ -Very moist, soft, with discontinuous slickensided ~ I-4 -. "./ clay seams inclined out-of-slope 10 -20' degrees ::f:~: :~ with calcium carbonate I--:t1·r SANTIAGO FORMATION -... SM . ~ .. I-6 -·:f= :·t Very dense,' damp, light tan-brown, Silty, fme -' .. ~ .. SANDSTONE :·t· .:~ i--.: :.1:·. -Bedding laminated, 2-4" beds at N30W, lOSW - TRENCH TERMINATED AT 7.5 FEET Figure A-70, Log of Trench T 15 LCG SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL 10 ... STANDARD PENETRATION TEST II ... DRIVE SAMPLE (UNDISTURBED) ~ ••• DISTURBED OR BAG SAMPLE 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 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 0:: TRENCH T 16 >-w zw ....... >-..... (!) l-. °u . 1-....... w~ 0 <J: DEPTH ...I ::I SOIL HZI-H. 0::"" SAMPLE 0 0 CLASS I-<tu. (l)u. ::::ll-IN :::t: z ELEV. (MSL.) 120 DATE COMPLETED 11/3/99 <J: I-" z. I-Z NO. I-::::l (USCS) O::(I)tn IlJU (l)LIJ FEET H 0 I-H::I O. HI-...I 0:: EQUIPMENT IJJ (1)0 >-0.. Oz (!) TRACKHOE JD 555 24" Zw...l 0::"" :1::0 ~~e ° (J MATERIAL DESCRIPTION ,... 0 l:? ,... ,... CL TOPSOa I- Stiff, humid, dark gray-brown, Sandy CLAY ,... 2 ,... ,... ,... SANTIAGO FORMATION r I ~ Very stiff, moist, olive-brown, very Silty ,... 4 -1% CLAYSTONE I- ~ CL --,... -~ r -6 -~ -Becomes hard I-~ -Near-horizontal contact ,... -,. .... ,. .. ------------------------------------~ -........ SP .. .. .. .. .,. ...... Dense, damp, light tan, fine SANDSTONE, I-8 ,... .. .. .. .. l-f' to .... ,. ........ non-cohesive when disturbed ........ .. .. .. .. .. .,. ...... I-.. .. .. .. .. -Slightly cemented "-/ TRENCH TERMINATED AT 9 FEET . - Figure A-71, Log of Trench T 16 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ .;. DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) il ... 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 06403-12-01 ~ >-UJ (!) l-0 <t ...J :J: SOIL 0 C CLASS ::t: z I-:::l (USCS) H 0 ...J ~ , , (!) CL I-4 - I-- I-6 - I--~L/CL I-8 - TRENCH T 17 ELEV. (MSL.) 135 DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION COll.UVIUM 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 ~IJJ~ >-'" I-"" UJ~ HUI-' I-Zu.. H. ~'-" <t <1:, (/)u. :::ll-Z. 11/3/99 ~I-(/) UJu I-z 1-003 c. (/)UJ UJHO HI-zOO..J >-0.. Oz UJlJJeo ~'-' 1:0 0.. 0::,-" C (.) I- I- I- I- I- LCG SAMPLE SYMBOLS [] ••• 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. I I I I I I I I I I I I I· I I I I I I PR 'T"RC'T NO. 06403-12-01 I~ TRENCH T18 >-ZUl""' >-ro, C!) a au . I-ro, lLI"': DEPTH SAMPLE ~ SOIL HZI-H. 0:: 'V IN a I! CLASS 1-<t:1.I.. (1)1.1.. ::::ll-NO. Z ELEV. (MSL.) 145 DATE COMPLETED 11/4/99 <1:1-' z. I-z (-0::00(1) lLIu FEET H I~ (USCS) I-H:3: 0. CIlUJ H(-~ EQUIPMENT TRACKHOE JD 555 2411 UJooo >-0-Oz zUl~ ~o::e 0:: 'V :11:0 0 u MATERIAL DESCRIPTION f-0 ~ " f--CL TOPSOIL I- Stiff, humid, dark brown, Sandy CLAY I-2 -I . t--SANTIAGO FORMATION f-Hard, damp, olive-gray, Silty CLAYSTONE ,... 4 --Massive, with blocky fractures l- t--CL t-- , 6 -l- t-lI: I' TRENCH TERMINATED AT 7 FEET I- I Figure A-73, Log of Trench T 18 I LCG SAMPLE SYMBOLS [] ••• 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 I I I I I I I I I I I I- I I I I PROJECT NO 06403-12-01 0:: TRENCH T 19 >-lJJ ~UI~ >-" C!) I-t:i"-lJJ~ 0 <I: HUI-DEPTH SAMPLE ...J 3 SOIL I-ZLL. (I) • 0:: ...... IN 0 c CLASS <J: <J: "-ZLL. :::ll- NO. J: Z ELEV. (MSL.) 160 DATE COMPLETED 11/4/99 0::1-(1) lJJ • I-Z FEET I-:::l (USCS) 1-(1)3 C~ (l)W ~ 0 lJJHO HI-0:: EQUIPMENT TRACKHOE JD 555 24" Z (I)...J >-0.. Oz C!) lJJlJJlQ 0:: ...... Z:o 0..0::"", C U MATERIAL DESCRIPTION -0 x. --COLLUVIUM -Soft to stiff, very moist, dark brown Sandy CLAY, -2 -with discontinuous random slickensided soil - --~ fractures; dipping 30-45 degrees out-af-slope -CL (slope creep?) I-4 -I- - I--.r;; I- -- f-6 -::/ l- f--. -1-2' transition to massive, approx. horizontal [I CL contact : I-8 -SANTIAGO FORMATION-l- 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 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 I I I I I I I I PROJECT NO 06403-12-01 a::: TRENCH T20 >-UJ zUJ ..... >-...... t!) I-°u . 1-", UJ~ 0 <J: DEPTH ...l ::3: SOIL HZI-H. a:::'"" IN SAMPLE 0 0 CL'ASS 1-<l:Ll.. ~u. :JI-::t: Z ELEV. (MSL.) 160 DATE COMPLETED 11/4/99 <1:1-' NO. a:::cnCl) UJ· I-Z FEET I-:J (USCS) O~ (/)UJ H 0 I-H::3: HI-...l a::: WenO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l t!) wa:::a:l a:::~ 1:0 a.. v 0 u MATERIAL DESCRIPTION -0 ~ - - COLLUVIUM f-: Stiff" moist, dark brown, Sandy CLAY -2 -~ I--: ~ - ,... 4 ,... CL ,... ,... ,... ~ -Becomes soft, very moist - 6 ,... - I-,... ~ -, I-8 --6-12" 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-7S, Log of Trench T 20 LCG SAMPLE' SYMBOLS [] ••• 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. I I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I 0:: TRENCH T21 > UJ ZlLI"" > "" C,!) l-Ou • 1-"" UJ~ 0 <I: DEPTH ...l :J: SOIL HZI-H. 0::'"" SAMPLE 0 c CLASS I-<tu.. C/)u.. :;:)1-IN NO. :::t: Z ELEV. (MSL.) 117 DATE COMPLETED 11/4/99 <1:1-' z. I-z 1-. :;:) (USCS) O::enC/) UJu (/)UJ FEET H 0 I-H:J: C. HI-...l 0:: UJenO >0.. Oz EQUIPMENT TRACKHOE JD 555 24" ZUl...l C,!) Ulo::l0 0::'"" l:o 0.. '"" C u MATERIAL DESCRIPTION I-0 ~ V[7 I--~V COll.UVIUM I-~ ~~ Stiff, moist, dark gray-brown, Silty CLAY, with I-2 -~ some sand I- -~ ~~ CL l-I-~~ I-4 -~ I-I;'v -Becomes soft V i/v -Irregular contact -I-- -6 -SANTIAGO FORMATION I- Stiff to very stiff, moist, light olive to brown, very --ML-CL Clayey SILTSTONE to CLAYSTONE I- ... 8 --Very weathered I- ,. -I- r-10 - TRENCH TERMINATED AT 10 FEET - Figure A-76, Log of Trench T 21 LCG 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 I I I I I I I I I I I. I I I I I I· DEPTH IN FEET -0 - - - 2 - -- 4 - - ~ 6 - ~ - ~ 8 - r - ~ 10 - r - I-12 - r-- ,.. 14 - ,.. - I-16 - -- -18 SAMPLE NO. >-(.!) :3 o :::t: 8 0:: W l-~ SOIL Cl CLASS (USCS) Z ~ o 0:: (.!) CL V/ ~~~L-ML o ./"/ TRENCH T22 " ELEV. (MSL.) 113 DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION ALLUVIUM Stiff to very stiff, damp, dark gray-brown, Sandy CLAY, with some silt, root-voids, rootlets, burrows -Becomes massive -Becomes very stiff, moist, medium brown-olive, very Silty CLAY, with little root-voids, burrows -Massive TERRACE DEPOSIT Very stiff, moist to wet light olive to brown, very Silty CLAY to Clayey SILT -Seepage at 15.5 feet TRENCH TERMINATED AT 18 FEET Figure 'A-77, Log of Trench T 22 11/4/99 ~ ~ - - - - - - - ~ ~ >- l-"" H. (1)1.1. Z. Wu 0. >-0.. 0::'"" o 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 I I I I I I I I I I I I I I I I- I PROJECT NO 06403-12-01 0:: TRENCH T23 >-UJ ZIJ.!'" >-'" (!) I-0 <J: °U" 1-..... LLI~ DEPTH .J ::t SOIL HZI-. ~u: 0:'"'" IN SAMPLE 0 c CLASS I-<I:I.L. =>1- NO. :t: z ELEV. (MSL.) 105 DATE COMPLETED 1114/99 <J: I-"-LLI" I-z I-::l O:enCl) FEET H 0 (USCS) I-H::t c~ enUJ HI-.J 0: EQUIPMENT LLI eno >-0.. Oz (!) TRACKHOE JD 555 2411 zlJ.!.J 0: ...... ::E:o LL.I e::: co 0.. '"'" C u MATERIAL DESCRIPTION -0 ~ ALLUVIUM ---;- Stiff to very stiff, humid, dark gray-brown, Sandy -2 -CLAY !- --~ -Numerous root-voids, rootlets, massive ;- T23-l CL 114.3 10.8 I-4 -I- T23-2 I--~ l- I-6 -I-::/ r -..1.1l , r 8 -11 -I TERRACE DEPOSIT l- SM . Medium dense, damp, brown-olive, very Silty, fine I--:'1 ~. [-SAND, with some clay, massive, blocky l- I-10 -:Ll r ~ -------------------------------------- :--Very stiff, moist, light reddish-brown, very r '-12 -Silty/Sandy CLAY I- -Becomes massive r -~ , r r 14 -r ~ CL r --Strong water seepage r rru r 16 -I- ,... -:~ - TRENCH TERMINATED AT 17.5 FEET - Figure A-7S, Log of Trench T 23 LCG SAMPLE SYMBOLS [] ••• 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 I Q:: TRENCH T24 )-W ZllJl"\ )-1"\ (!) I-0 <I: °u . 1-...... W~ DEPTH ...J :3: SOIL HZI-H. 0::'"' IN SAMPLE 0 0 CLASS I-<l:u. (J)u. ;:)1- NO. ::c z ELEV. (MSL.) 126 DATE COMPLETED 11/4/99 <I: I-"-Z. I-z I-;:) 0:: (1)00 llJU FEET H 0 (USCS) I-H 3 c. OOw HI-...J 0:: W(J)O )-t'L. Oz (!) EQUIPMENT TRACKHOE JD 555 24" zllJ...J ~o::e 0:: ..... I:o C u MATERIAL DESCRIPTION -0 V/ CL --TOPSOIL ~/} Stiff, humid, dark gray-brown, Sandy CLAY -2 -{:(/ TERRACE DEPOSIT I- - - Medium dense, damp, light reddish-brown, I-T24-1 I;:/'; SC Clayey, fine SAND 112.5 7.9 -4 -T24-2 y .. I-/:~% I--v./:( -I--Calcium carbonate linings I-6 -1// -Massive with indistinct lenses of sandy or silty l- I--fl/':;; clay, numerous root-voids and calcium I-('0 carbonate-lined fractures, scattered carbon I-8 -~/~ fragments and pisolites of iron oxide l- I--/f I- 10 -y: ./ I-/./} ... I--T24-3 ;/~ -116.3 11.5 I-12 -i/'} -Calcium carbonate linings -T24-4 {// I--!).~ - I-14 -//. - I-.;/./ . TRENCH TERMINATED AT 15 FEET - Figure A-79, Log of Trench T 24 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. I' I I I I I I' I I I I I I I I I I PR ()JEC::l~Q. 06403-12..01 i TRENCH T25 ,.. ZLU" ,.. " t!) °u . 1-"" UJ~ ° DEPTH ..J SOIL HZI-H • ~v IN SAMPLE ° CLASS 1-<1:1.1.. (1)1.1.. :::JI-NO. :::r: ELEV. (MSL.) 137 DATE COMPLETED 11/4/99 <1:1-' Z • I-Z FEET I-~(I)(I) UJu (l)1JJ H (USCS) I-H:J: t:l • HI-..J UJ (1)0 ,..a.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ..J ze~e ~'"" ~o 0 u MATERIAL DESCRIPTION '-0 B-1 ,... -COLLUVIUM ,... ~ Very stiff, damp to moist, dark gray-brown, Sandy ,... 2 -CLAY - r---Massive, with root-voids, rootlets - t?:. CL '-4 -I----~ I- ,.. 6 -I- ,... -» , -8 -TERRACE DEPOSIT I-~ Very stiff, moist to very moist, light brown, Sandy --CLAY I- 10 -CL -Massive, with root-voids -~ I- - -;- -12 -·Irregular, near-horizontal contact ~ ~ CL SANTIAGO FORMATION -,... Stiff to very stiff, moist, light olive, very Silty I-14 CLAYSTONE -V~ry_ fractured and weathered TRENCH TERMINATED AT 14 FEET Figure A-SO, Log of Trench T 25 LCG SAMPLE SYMBOLS [] ••• 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. , I I PROJECTNO 06403-12-01 I I I I I I. I I I I I I I I I I I 0:: TRENCH T26 >-UJ ZUf"" >-"" t!) l-Ou • 1-"" UJ~ 0 <I: DEPTH ...J :3: SOIL HZI-H • 0:: .... SAMPLE 0 0 CLASS 1-<I:lJ.. (/)lJ.. ::::ll-IN ::x:: z ELEV. (MSL.) 137 DATE COMPLETED 11/4/99 <t:1-' z. I-z NO. I-::J O::cn(/) UJ u cnUJ FEET H 0 (USCS) I-H:3: 0. HI-...J 0:: UJcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...J C,!) Ifo::e 0:: ...... ll:o 0 u MATERIAL DESCRIPTION r-0 ~ r--AlLUVIUM "- Stiff, moist, dark olive-brown. Sandy CLAY, with r-2 -some silt, root-voids and rootlets - r--~ - -4 -CL - - -~ -- -6 --- --1 ~ r- -8 - - -~ TERRACE DEPOSIT r-Stiff to very stiff, moist, light brown, very Sandy '-10 -CLAY r- ,.. -~ CL I- 12 -r - -V) I- 14 TRENCH TERMINATED AT 14.FEET - Figure A-81, Log of Trench T 26 LCG SAMPLE SYMBOLS [J '" SAMPLING UNSUCCESSFUL ~ '" DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLECUNDISTURBED) 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. I· 0:: TRENCH T27 >-UJ ZUl"" >-"" (!) f-0 <I: °u· f-"" UJ~ DEPTH ..J 3 SOIL HZf-H • 0::"'- IN SAMPLE 0 0 CLASS f-<t:u.. Cl)u.. ::If-NO. :r: Z ELEV. (MSL.) 146 DATE COMPLETED 11/5199 ~I-d, Z. f-z . FEET f-::l (USCS) 1-'-(1)3 UJu (/)UJ H 0 WHO o • Hf-..J 0:: EQUIPMENT TRACKHOE JD 555 24" zcn..J >-0-Oz (!) UlUlca 0::'"" ~o a. 0::,"" 0 u MATERIAL DESCRIPTION -0 r? --CL TOPSOll.. I- Stiff, humid, dark gray-brown, Sandy CLAY -2 -~/.; --TERRACE DEPOSIT I-f// SC Medium dense, damp, reddish-brown, very Clayey, -4 -;:/-y; fine SAND, massive, blocky, with calcium :- --y/. carbonate, -mottling - -6 -j.~~ -T27-1 ~ -___ -§J::.e~~d_ b~<!dinj 'pl!ll. s~~ !'T~Q.'Y ,_2~~'Y _________ • -108.2 19.8 -T27-2 v CH 8 -~ Soft to stiff, very moist, light olive, Silty plastic -;1< CLAY -,t;> SC "' '-__ -~~l!?-~~U!,~~c.!c!E..n!i~eE ~~rups..1'y~xy :fF~c~e~ _______ , ,. -10 -~/-~ Medium dense, damp, light brown, very Clayey, - './"/, very fme SAND -Massive, blocky, with 114" +-charcoal fragments, with some silt TRENCH TERMINATED AT 11 FEET J , Figure A-82, Log of Trench T 27 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... 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 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 06403-12-01 0:: TRENCH T28 >-U/ Zw"" >-'"' (.!) l-Ou • 1-"" U/~ ° <I: DEPTH -l 3 SOIL HZI-H. 0::"'" SAMPLE ° c CLASS 1-<I:lJ.. (f)lJ.. ~I-IN NO. z Z ELEV. (MSL,) 93 DATE COMPLETED 11/5199 <I: I-"-Z • I-z I-:::l O::cnCl) U/u FEET H ° (USCS) I-H::I c. Cl)UJ HI--l 0:: U/(f)0 >-0-Oz CD EQUIPMENT TRACKHOE JD 555 24" Zw-l U/ 0:: co 0::'"" I:o 0-'"" C u MATERIAL DESCRIPTION r-0 :9."'--1-f--l~l FILL r- . tp Loose, dry to humid, light brown, Silty, Gravelly, r-2 -~M-GM fme SAND, with oversize concrete, wood, trash :-: -t. f--J'fl - r-4 -'t'l f--0. ALLUVIUM -Stiff, moist, dark gray-brown, Sandy CLAY f-6 --Massive, with root-voids, rootlets - f--~ -. r 8 --CL r -~ - I-10 -f- f--f- , 12 -,.L :l·ll r -l11 TERRACE DEPOSIT l-SM Medium dense, moist, light brown, Silty, fine i-14 -:', rl-SAND f- --:1· l -Very weathered, with some clay r- 16 ·J.1 '[ -Becomes very dense, damp, and cemented TRENCH TERMINATED AT 16 FEET - Figure A-83, Log of Trench T 28 I LCG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNO ISTURBED) iiiJ ••• 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 I ~ TRENCH T29 >-UJ ZUI""' >-" t!) .... 0 <I: °u . ....,.. UJ~ DEPTH -1 :3: SOIL HZ .... H • ~v IN SAMPLE 0 ° CLASS .... <t:LI.. cnlJ.. :JI-NO. Z Z ELEV. (MSL.) 90 DATE COMPLETED 11/5/99 <I: I-"-Z. .... z .... :J ~cncn UJu FEET (USCS) .... H:3: o. cn w H 0 HI--1 ~ UJcnO >-0-Oz t!) EQUIPMENT TRACKHOE JD 555 24" ZUI-1 ~~e ~'"' 1:0 0 u MATERIAL DESCRIPTION f-0 X. f--COLLUVIUM "- Stiff, damp, dark gray-brown, Sandy CLAY f-2 --Massive, with root-voids and rootlets - f--~ - f-4 -CL - -f--~ - !-6 -- :---- !-S -"/ r--~/.j TERRACE DEPOSIT f-{/> Medium dense, damp, reddish-brown to olive, f-lO -[(/-~ SC Clayey, fIne SAND l- f--)(/, f-V:~% f-12 -v./'/, ___ -~~.c~IE-~ ~~~eE ~r~~n.! ~~~ ~o~t~, .!<:O!-~o.!~ _______ • f- :1.-1."1---r-- l1'1 SM Medium dense to dense, light brown-tan, Silty, l- I-14 - :j ·t·" fme to medium SAND, with some clay, fine I- root-voids '- TRENCH TERMINATED AT 15 FEET - Figure A-84, Log of Trench T 29 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 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 I· I I I I I I I I I. I .... I. I I I I I PROJECT NO 06403-12-01 Q! TRENCH T30 >-UJ ZUJ" >-"..... (!) I-°u . 1-...... LIJ~ 0 <t DEPTH ....l 3 SOIL HZI-H. Q!'" SAMPLE 0 0 CLASS I-(tLL. C/)LL. =>1-IN :::I: z ELEV. (MSL.) 120 DATE COMPLETED 11/5199 <1:1-"-Z. I-Z NO. l-=> D::C/)cn LlJU cnLIJ FEET H 0 (Uses) I-H::I q .• HI-....l Q! LlJcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 2411 zUJ....l (!) LlJQ!t:O Q!'-' ::E:o c... v 0 u MATERIAL DESCRIPTION r-0 "f' Vt " 'r SANTIAGO FORMATION r--:"t" .:~: I- " 'f' SM Very dense, damp, light brown-tan, Silty, medium r-2 -·:f: :"t" to coarse SANDSTONE l-. ""., r -:=f=j::f· -Massive l-f' :f ". " ."." TRENCH TERMINATED AT 3.5 FEET - , - Figure A-85, Log of Trench T 30 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. 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 T31 >-LU Zw" >-" (!) l-Ou • 1-", LU~ 0 <I: DEPTH -' ::I SOIL HZI-H • ~ ...... I·N SAMPLE 0 0 CLASS I-<t:u. C/)u. =>1-NO. ::t: z ELEV. (MSL.) 115 DATE COMPLETED 11/5199 <1:1-' z. I-z l-=> ~CJ)C/) LU U FEET H 0 (USCS) I-H::3: o • CJ)LU HI--' ~ LUCJ)O >-0.. Oz C,!) EQUIPMENT TRACKHOE JD 555 24" zw..J ~Q:!e ~\J ';:0 0 u MATERIAL DESCRIPTION -0 t5E --COLLUVIUM ~ Stiff, moist, dark gray-brown, Sandy CLAY, with -2 -root-voids, rootlets, burrows .~ ~ CL ,... -- "-4 -0 -Becomes soft, very moist - -. --Irregular, N-inclined contact -::f:~::t: SANTIAGO FORMATION -6 -°t or -:0.( : SM Very dense, damp, light brown to tan, Silty, coarse ·r °t --... SANDSTONE -.. , .] .. -8 :.~ ... :,: TRENCH TERMINATED AT 8 FEET - Figure A-86, Log of Trench T 31 LCG SAMPLE SYMBOLS [J .•• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST II ... 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. I I PROJECT NO . 06403-12-01 I I I I I I I I I I I I I I I I I 0:: TRENCH T32 >-LlJ zUJ ...... >-...... (!) ..-°u . ..-...... LlJ~ 0 <I: DEPTH -l ::I SOIL H Z "-H. 0::"" SAMPLE 0 0 CLASS I-<I:u.. (l)u.. ::J..-IN :t: z ELEV. (MSL.) 80 DATE COMPLETED 1115/99 <C I-" Z. "-z NO. I-::J (USCS) 0::00(1) LlJU cnUJ FEET H 0 I-H::I o • H..--l 0:: UJooO >-Q... Oz EQUIPMENT TRACKHOE JD 555 24" zUJ-l (!) ~o::e 0::'"' :£:0 0 u MATERIAL DESCRIPTION -0 ~ --ALLUVIUM I-Stiff, moist, dark gray-brown, Sandy CLAY -2 --Massive, with rootlets, root-voids I- r--.~ I- :-4 -I- ~ -~ I-CL ~ 6 -I- ~ -I-~ , I-8 -l- i--(% I- ~ 10 - ' .. / --------------------------------------t;9;-{/;' Medium dense, very moist, reddish-brown, very I--7/ I- v.;({ Clayey, medium SAND, with scattered angular I-12 -p.//; volcanic gravel-clasts near base I- ~ -Xl"; SC l- I-14 -~% ! -Strop.g seepage at 14 feet, becomes gravelly I-It I--~/i-: l- I-16 TRENCH TERMINATED AT 16 FEET Figure A-87, Log of Trench T 32 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) !3§ ••• 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 I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 :::: 0:: TRENCH T33 >-. LIJ ZUl""' >-'"' (!) l-Ou • 1-", I.1.IN ° <I: DEPTH ...J 3 SOIL HZI-H. 0::'"' SAMPLE ° Cl I-<J:LL. ~LL. ::::ll-IN NO. ::c Z CLASS ELEV. (MSL.) 90 DATE COMPLETED 11/5/99 <1:1-' 1.1.1. I-z I-::::l D::en(t) Cl": (t)LIJ FEET H ° (USCS) I-H 3 HI-...J 0:: Wen O >-0.. Oz EQUIPMENT TRACKHOE JD 55! 2411 ZUl...J (!) ~o:::~ 0::'"" %:0 Cl u MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUM I-Stiff, humid to damp, dark gray-brown, Sandy I-2 -~ CL CLAY, with scattered angular volcanic i- I--gravel-clasts l- I-4 -. :'/ '·f'~'r " .],. SANTIAGO FORMATION I--:·f· ·:f· i-" 'f' Very dense, damp, light brown to tan, Silty, r-6 -·:f: :·t medium SANDSTONE i-::t*:( SM -Massive to faint bedding layers I--" 'f' , -Bedding; NSOW, lOSW , , ·:f: :·t I-8 -::t:j:~~ I- , , . TRENCH TERMINATED AT 9 FEET - I Figure A-88, Log of Trench T 33 -\ LCG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNO I STURBED) ~ ••• 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 I . 0:: TRENCH T34 >-W zw ..... >-,... (!) l-Ou • 1-,... w~ ° (I: DEPTH -1 :3: SOIL HZI-H. 0::'" SAMPLE ° 0 I-(I:LI.. enLl.. :::ll-IN ::r: z CLASS ELEV. (MSL.) 105 DATE COMPLETED 11/5/99 (I:I-" z. I-Z NO. I-::l 0:: en en Wu enUJ FEET H ° (USCS) I-H:J: O. HI--1 0:: WenO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" Zw...l (!) ~o::e 0::'" ~o 0 u MATERIAL DESCRIPTION e-O ~ i--ALLUVIUM -Stiff to very stiff, damp, dark·gray-brown, Sandy e-2 -CLAY I- ,... -~ -Massive, root-voids and .rootlets l- i-4 -CL l- i--~ -l- e-6 -l- i---Becomes more sandy, moist, brown l- I i-8 -~ l-... f--./: l- i-10 -~f; I-TERRACE DEPOSIT f--/./. Medium dense, moist, reddish-brown, very Clayey, I-V>~; SC medium to coarse SAND i-12 -V/y l- . -i{/.~ l- f-14 -v/0 -Becomes gravelly at 14 feet, with sub angular I-/~ volcanic rock TRENCH TERMINATED AT 15 FEET REFUSAL ON ROCK - Figure A-89, Log of Trench T 34 l.eG 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 PROJECTNO 06403-12-01 I I I I I I I I I- I I I I I I I I 0::: TRENCH T35 >-UJ zw ...... >-...... t!) l-Ou • 1-" UJ~ 0 <I: DEPTH -J :3: SOIL HZI-H • 0:::'"" SAMPLE 0 c CLASS I-<J:u.. 001.1.. ;:)1-IN NO. :z: Z ELEV. (MSL.) 120 DATE COMPLETED 11/5199 <1:1-" z. I-z I-;:) O:::cnOO l..iJu FEET (USCS) I-H:3: c. OOUJ H 0 HI--J 0::: UJCI)O >-0.. Oz EQUIPMENT TRACKHOE JD 55524" zUJ-J t!) ~o::e 0:::'-' :E:o c u MATERIAL DESCRIPTION :-0 // CL TOPSOll.. :-->f'" :t Stiff, d.ry, dark brown, Sandy CLAY , ,~o :-2 -:·t· .:~ SANTIAGO-FORMATION f- , • 0 :--::f:~:;t' Firm or very stiff, damp, light olive, very Silty '-, j Of ::f= ::t' CLAYSTONE ~ 4 -, , 0 -Massive, highly fractured and weathered ,.. o ~" .:~: :·C" ~ -· " .. :-;:f:l::f I-6 -0' 'r' -·:f: :·t· o. ,]" ,.. -:·t· ·:f" CL -" 'f 0 , "-8 -':f: :~ -: ... ].: : :--r Of -:' '(' -Randomly oriented, discontmuous clay seams ..... I-10 -::f:ft - 0't' or o , , ~ -.: :~:'. -'t r o 0 0 I-12 -:. ·l·: -r 0 f I--: .. ~;~: --Contact near-horizontal -::f:1:r SM -----------------------------------~ I-14 -:rkf' Very dense, damp, light brown, Silty, fine f-. :1~ SANDSTONE · .. _to,. ... l-· .. TRENCH TERMINATED AT 15 FEET -'-. 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) 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 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 DEPTH IN FEET t-O f- f-2 - -4 - -6 - -8 . SAMPLE NO. - - - - - - - >-(.!) :3 o ::r: I-H -l 0:: UJ I-~ SOIL o CLASS (USCS) z ~ o 0:: (.!) SC ML TRENCH T36. ELEV. (MSL.)--,1;;.;;.7~5 __ DATE COMPLETED EQUIPMENT TRACKHOE JD 555 2411 MATERIAL DESCRIPTION TOPSOIL Loose, damp, dark brown, Clayey, medium SAND -Clean sand near contact 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 11/5/99 - - - - - >-1-", H. cnu. z. UJu o. >-0-o::~ o 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 PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I ~ TRENCH T37 >-LLI ZLLI'"' >-'"' t!) l-I-", llJ~ 0 <I: °u . DEPTH ...l :t SOIL HZI-H. ~v IN SAMPLE 0 Cl CLASS I-<l:u. (J)u. =>1-NO. ::x:: Z ELEV. (MSL.) 140 DATE COMPLETED 11/5/99 <1:1-' z. I-Z FEET I-:::l (USCS) ~cn(J) LLlU (J)UJ H 0 I-H:t Cl • HI-...l ~ UlcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zllJ...l t!) ~o::e 0::'"' :1::0 Cl u MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUM "- Stiff, moist, dark gray-brown, Sandy CLAY I-2 -CL '- I--~ - I-4 -'. -/ ~/; . TERRACE DEPOSIT I---{;// Medium dense, moist, reddish-brown, very Clayey, I-6 -~/-~ medium to coarse SAND - /./. SC -Massive, blocky, with angular gravel-clasts of I---V~% volcanic rock at base I I-8 -~ - I---Deposition-contact; N80E, 20S -... :~: ·~t: I-10 -: .. ~.: SM SANTIAGO FORMATION I-·:f:j:-t· l-. . . Dense, damp, light brown-tan, Silty, coarse SANDSTONE, massive TRENCH TERMINATED AT 11 FEET - Figure I A-92, Log of Trench T 37 LeG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED): ~ •.• DISTURBED OR BAG SAMPLE IiJ ••• 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. I-PROJEC~ NO. 06403-12-01 I I I I I I I I I I I I I I I I 0:: TRENCH T38 >-UJ ZUJ""' >-""' CD I-0 <I: °u . 1-" lJJ~ DEPTH ~ ::3: SOIL HZI-H. 0::'"" IN SAMPLE ° c CLASS I-(tLi. Cl)LI. =>1-NO. ::r: z ELEV. (MSL.) 125 DATE COMPLETED 11/8/99 <1:1-' z . I-Z FEET l-=> (USCS) O::CJ)CI) lJJU ~lJJ H 0 ~HS c:J • ~ 0:: ZCJ)~ >-0.. 01- CD EQUIPMENT TRACKHOE JD 555 24" L:z lJJUJCQ 0::'"" 0 0..0::,"" C U MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUMILANDSLIDE DEBRIS "-Stiff, moist, dark brown, Sandy CLAY, with clasts I-2 -of sandstone, porous, with root-voids - I--~ - I-4 -~ CL l- I--~, I- -6 -I- - -I- -8 -~ -Very irregular, transitional contact, becoming l-very moist --Becomes soft, very moist, mottled light brown to I- -10 -olive, very Sandy CLAY, with angular chunks of I-~ Santiago formation, sandstone; disturbed, mixed -textures '- -12 -- -~ - 14 -. '/ -Very irregular, wet, plastic, clay seam -~ CL SANTIAGO FORMATION Stiff, very moist, light olive, Silty CLAYSTONE -Very weathered and fractured TRENCH TERMINATED AT 15 FEET, - Figure A-93, Log of Trench T 38 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. I I-PROJECT NO 06403-12-01 I I I I I I I I ,I I I I I I- I I I -0:: TRENCH T39 )-LIJ zw ...... )--" CD l-Ou • 1-,... W:-.: 0 <I: DEPTH -l :3: SOIL Hzl-H • 0::"" SAMPLE 0 0 CLASS I-<E:IJ.. (J)IJ.. ::ll-IN NO. :r: Z ELEV. (MSL.) 120 DATE COMPLETED 1118199-<1:1-' z. I-z I-::l O::cn(J) Wu FEET (USCS) I-H:3: o • cnLIJ H 0 HI--l 0:: LlJcn-O )-0-Oz C.!) EQUIPMENT TRACKHOE JD 555 24" Zw-l LlJo::lXl 0:: ...... 1:0 a. ...... 0 u MATERIAL DESCRIPTION t-O ~ I--LANDSLIDE DEBRIS ~ Stiff, damp, dark gray-brown, Sandy CLAY t-2 --Porous, with rootlets, root-voids :0- t--~ CL - I-4 -- I--~ -- t-6 --Irregular contact - t---Becomes soft, wet, reddish-brown, -0 Sandy-Gravelly CLAY, with disturbed texture I-8 -(brecciated) - -- t--% ~ -= -Strong seepage - -10 -~ CL-CH -Very irregUlar, plastiq 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 ~ ••• 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 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 I PROJbl,;T r-lO 064J)3-12-01 . if TRENCH T40 >-ZUJ"'" >-" t!) 0 °u • 1-"", UJ~ DEPTH ...J SOIL HZI-H • 0::'"" IN SAMPLE 0 CLASS I-<I:IJ.. (J)IJ.. :;)1-::r: ELEV. (MSL.) 155 DATE COMPLETED 11/8/99 <I:I-" z. NO. I-0:: en en UJ u I-Z FEET § (USCS) I-H::3: o • en Ul H HI-...J EQUIPMENT wen o >-0-Oz TRACKHOE JD 555 24" zUJ..I g:o::S 0::'"'" :E:o 0 u MATERIAL DESCRIPTION I-0 ~"?~ SC TOPSOIL l-.-.:; /.. Loose, damp, dark brown, Clayey, medium SAND - I-2 -09.l l TERRACE DEPOSIT l- I--. t-r Medium dense, damp, reddish-brown, Gravelly, l- I-4 -Silty coarse SAND I-J·r"l-SM -Massive . I-- -' -? l- I-6 -I- lI.T. 1-., nl ., contact I--,/V ~ :t LANDSLIDE DEBRIS . I-8 -~ r ~ c'L-c'H Soft, very moist to wet, light olive-brown, Silty ~ -,/ CLAY ,... ~~ ,/ -Disturbed, with numerous clay seams, chunks of :-10 -,/ .... ~~ / santiago formation and Jsp i--/ -1-2" remolded clay seam with slickensides; N85W, I~I ICL-C,H 40S :-12 -SANTIAGO FORMATION - i"" Stiff, very moist, light olive, Silty CLAYSTONE -Very fractured and weathered TRENCH TERMINATED AT 13 FEET . Figure A-95, Log of Trench T 40 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL !3§ ••• DISTURBED OR BAG SAMPLE (] ••• STANDARD' PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) IiiJ ••• 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. I I. PROJECT NO. 06403-12-01 I I I 1 I I I I· I 1 I I I I I I I c:: TRENCH T41 >-IJJ zLLJ ..... .>-..... CD l-Ou • 1-..... LL1~ 0 (I: DEPTH ..J :3: SOIL HZI-H. c::V SAMPLE 0 Cl CLASS I-<t:u.. enu.. ::ll-IN ::t: Z ELEV. (MSL.) 145 DATE COMPLETED 11/8/99 (1:1-' z. I-Z NO. I-::l C::enen LL1U FEET H 0 (USCS) I-H:3: O. enL!J HI-..J c:: L!JenO >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zLLJ..J CD LL1~CIl ~v l:o 0-. .,., 0 tJ MATERIAL DESCRIPTION -0 ~ r--LANDSLIDE DEBRIS r- Soft, very moist, light brown to olive, very coarse, r-2 -Clayey boulder GRAVEl.., with subrounded 6 to r-GC 24 n volcanic boulders r--~ ,-. r-4 -!- --c- o -6 -- --~ ~ -. y -8 :--Strong seepage II -Very irregular contact, inclined southward '--CL-CH SANTIAGO FORMATION r- -10 -Stiff, wet, light olive, Silty CLAYSTONE !--Very fractured, weathered, with clay seams --!- ~ 12 TRENCH TERMINATED AT 12 FEET - Figure A-96, Log of Trench T 41 LCG SAMPLE SYMBOLS o ... SAMPL I NG· UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE u ... 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 I I I I I I I I I I I I I- I I I 0:: TRENCH T42 .)-UJ Zw'" )-'" C.!l I-0 <I: °u . 1-", UJ~ DEPTH ...J 3 -SOIL ~Zt;: H. 0:: ..... IN SAMPLE 0 Q CLASS <I: <I: , (l)Lt.. :;)1-NO. :c z ELEV. (MSL.) 170 DATE COMPLETED 1118/99 0::1-(1) z. I-z LtJ U FEET I-:;) (USCS) 1-(1)3 Q. (l)W H 0 WHO HI-...J 0:: EQUIPMENT . TRACKHOE JD 55524" zcn...J )-c-Oz C.!l WLtJIO 0::'"' ll:o 0..0:::"" Q U MATERIAL DESCRIPTION I-0 ~ I--CL LANDSLIDE DEBRIS 1-- Stiff, damp to humid, dark brown, Sandy CLAY -2 -r- --~ -Becomes soft to stiff, moist, light olive mottled I-with reddish-brown, Silty CLAY, with scattered I-4 -angular volcanic clasts, disturbed, brecciated r- texture v r--~ -r-- I-6 -I- --r- -8 -~ l-I -Becomes very moist to wet -'- -10 -~ '-6:i = -Strong seepage, caving ---Remolded clay seam, N85W, lOS, approx. 2" thick I- -12 './ -Becomes stiff, wet, light olive-gray, Silty CLAY -May be very weathered Santiago Formation (7) TRENCH TERMINATED AT 12 FEET - Figure A-97, Log of Trench T 42 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 PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I 0::: TRENCH T 43 >-IJ.I Zw"" >-"" (!) l-Ou • 1-"", I..LI~ ° <I: DEPTH -J 3: SOIL HZI-H • 0::: ...... IN SAMPLE ° 0 CLASS 1-<t:LJ.. enlJ.. ::ll- NO. ::r: Z ELEV. (MSL.) 200 DATE COMPLETED 11/8/99 <1:1-' Z • I-z 1-. ::l 0::: en en lJ.Iu Cf)UJ FEET H 0 (USCS) I-H 3 0. HI--J 0::: lJ.IenO >-0.. OZ· EQUIPMENT TRACKHOE JD 555 24" zUJ-J (!) ~o::!9 0:::'"" I:o 0 (.) MATERIAL DESCRIPTION I-0 ~ I--~ COLLUVIUM I- CL Stiff, moist, dark brown, Sandy, Gravelly CLAY, t-2 -~ with angular volcanic clasts l- I--l- I-4 --Becomes light olive, very moist, more silty I-~ I---Discontinuous, out-of-slope slickensided clay l- t-6 -seams I r CL SANTIAGO FORMATION I--~ I- ~ Very stiff to hard, moist, light olive-gray, Silty I-8 CLAYSTONE -Blocky, massive TRENCH TERMINATED AT 8 FEET -- Figure A-98, Log of Trench T 43 LCG 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 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 1 I· 1 I I' 1 I 1 I I I I· I I I I PROJECT NO. 06403-12-01 0:: TRENCH T44 >-LLI ZUJ'" >-" t!) l-Ou • I-~ LLI~ ° <I: DEPTH -1 3 SOIL HZI-H • 0::'"'" IN SAMPLE ° 0 CLASS I-<J:u. (/)u. ::::ll-NO. ::c z ELEV. (MSL.) 230 DATE COMPLETED 11/8/99 <I: I-'\. z .• I-Z FEET 1-' ::::l (USCS) 0::00(1) LLlU (l)UI H ° I-H 3 0. HI--1 0:: LLlCI)O >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ-1 t!) ~o::!S 0:: ..... :E:o 0 u MAT-ERIAL DESCRIPTION '-0 ~ ~ -COLLUVIUM f-~ Stiff, moist, dark red-brown, very Gravelly ~ 2 -CLAY, with angular clasts of volcanic rocks ~ ~ CL ~ -~. '-4 -f- ~ -"f- ~ 6 --Irregular, downslope-inclined clay seam contact ~ I'/.. r--~~I'~ SANTIAGO PEAK VOLCANICS '- ~c~ < Very weathered, light reddish-brown, weak r-8 VOLCANIC ROCK -Very fractured, excavates to a c1ay~y'sand TRENCH TERMINATED AT 8 FEET - ' .. Figure A-99, Log of Trench T 44 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. 1 I' PROJECT NO 06403-12-01 1 I I I I I. I I I I I I I I I DEPTH IN FEEl - 4 - -- - 6 - - - - 8 - SAMPLE NO. 0:: >-IJ.I t!) I- 5 ~ SOIL o '0 ~ Z CLASS I:f 5 (USCS) -I 0:: CD o y:. CL // ~L-ML ' .. TRENCH T45 ELEV. (MSL.) ---=2==2~O __ DATE COMPLETED EQUIPMENT TRACKHOE JD 55524" MATERIAL DESCRIPTION COLLUVIUM Stiff, damp, dark brown, Sandy CLAY SANTIAGO FORMATION Hard, damp, light olive to tan, Clayey SILTSTONE to Silty CLAYSTONE -Laminated beds -1/2-2" thick 11/8/99. --~"¥T';Hl--+----I-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --1----1----1----; =:f:ft: -10 - ,... 12 - - ::t:1::t ·:r:1:·~· :: ·tr:~::~ ...... r ::C:~::~: SM Very dense, damp, light tan to reddish-brown, Silty, medium to coarse SANDSTONE, massive TRENCH TERMINATED AT 13 FEET Figure A-100, Log of Trench T 45 I... - 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 CONDITIONS AT OTHER LOCATIONS AND TIMES. I. I I I I I I I I I I I I I I I I I PROJECT NO 06403-12-01 ~ TRENCH T46 ,.. UI ZI.LI~ ,.. '"' t!) l-Ou • 1-"..... U1 X 0 <t: DEPTH ..J :3: SOIL HZI-H • ~v SAMPLE 0 Cl CLASS I-<t:u. (/)u.. ;::)1-IN :I: Z ELEV. (MSL.) 215 DATE COMPLETED 11/8/99 <t:1-' Z. I-Z NO. I-::l ~(/)(/) U1U ~U.I FEET H 0 (USCS) I-H:3: Cl • ..J ~ U1(/)O ,..0-01- t!) EQUIPMENT TRACKHOE JD 55524" zLLI..J ~'-" l:z LLI~CO 0 a. '-" Cl u MATERIAL DESCRIPTION r 0 ~ i--CL TOPSOlL I-:y Stiff, damp, dark brown, Sandy CLAY i-2 - I--SANTIAGO FORMATION . l-Very stiff, moist, light olive, Silty CLAYSTONE, I-4 -very weathered, fractured, with random clay seams l- i--CL l- I-6 -r t-, TRENCH TERMIN.ATED AT 7 FEET . - - Figure A-lOl, Log of Trench T 46 . LeG 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 PROJECTNO 06403-12-01 I I 1 I- I I I I I 1 I I I I- I I I 0:: TRENCH T41 >-lJJ ZUJ'"' >-"... t!) l-Ou • 1-,", lJJ~ ° <J: DEPTH ...I 3: SOIL HZI-H. 0::"" SAMPLE ° ° CLASS I-<tll.. (J)u. :::ll-IN :I: z ELEV. (MSL.) 207 DATE COMPLETED 11/8/99 <1:1-' z. I-z NO. I-:::l O::en(J) lJJ(J (J)lJJ FEET H ° (USCS) I-H3: O. HI-...I 0:: lJJenO >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...I t!) ~~S 0::""" :E:o 0 u MATERIAL DESCRIPTION -0 u. --COLLUVIUM I-Stiff, moist, dark brown, Sandy CLAY --2 -I-0 CL I--- -4 -% :- --~~ ~ -6 -CL SANTIAGO FORMATION I-Stiff to very stiff, very moist, light olive, Silty -"-CLAYSTONE TRENCH TERMINATED AT 7 FEET - Figure A-I02, Log of Trench T 47 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 I I I I I I I I I I I. I I I I I I 0::: TRENCH T48 >-IJ.l zL/J ...... >-" (,!) I-0 <I: °u • 1-.... 1J.l~ DEPTH ...I ::t SOIL HZI-H. 0:::"" IN SAMPLE 0 ° CLASS I-c:u. (J)u. ::ll-NO. :::t: Z ELEV. (MSL.) 175 DATE COMPLET.ED . ·11/8/99 <1:1-' Z. I-z I-::l (USCS) O:::CI)(J) ·lJ.lu Cl)1J.l FEET H 0 I-H::t O. HI-...I 0::: IJ.lCl)O )-0.. Oz (,!) EQUIPMENT TRACKHOE JD 555 2411 zL/J...I ~~e 0:::'"" . 1:0 0 u MATERIAL DESCRIPTION -0 X I--TOPSOIL I-- CL Stiff, humid, dark brown, Sandy CLAY I-2 -l- I----% ~\\'L-SANTIAGO PEAK VOLCANICS I-4 -Iv. i'" < 1-. :..l \' L-Very weathered, fractured, light red-brown, weak - T" I-"-VOLCANIC ROCK /' TRENCH TERMINATED AT 5 FEET , - Figure A-I03, Log of Trench T 48 LCG SAMPLE SYMBOLS IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) [J ••• SAMPLING UNSUCCESSFUL ~ ••• 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 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 0:: TRENCH T49. >-UJ zUJ ...... >-" t!) l-Ou • 1-...... UJ~ ° <J: DEPTH -l :J: SOIL HZI-H. 0::"'" IN SAMPLE ° Cl CLASS I-<tu. (J)u. ::ll-·NO. :::c Z ELEV. (MSL.) 200 DATE COMPLETED 11/8/99 <1: .... " Z. I-Z FEET I-::l (USCS) O::cn(J) UJu (J)UJ H ° I-H:J: P. HI--l 0:: Wcn O >-0-Oz t!) EQUIPMENT TRACKHOE JD 555 24" Zw-l ~o::e .0:: ....... :1::0 Cl u MATERIAL DESCRIPTION - I-0 r-0. I--TOPSOll. - Stiff, damp, dark brown, Sandy CLAY I-2 -CL - r -.:z: :·f·~·:t : SM I-4 -....... SANTIAGO FORMATION I~ " i \ Dense, damp, light red-brown, Silty, coarse I r -\ SANDSTONE I -- 6 CL \. __ -~~a.!-E-~r~~n!a!. ~e~~g:c~~~~ ______________ " I--~ Hard, damp, light olive, very Silty CLAYSTONE - r --Very fractured and weathered, with calcium r carbonate linings TRENCH TERMINATED AT 7.5 FEET - Figure A-I04, Log of Trench T 49 LCG SAMPLE .sYMBOLS o '" SAMPLING UNSUCCESSFUL I!§ ••• 0 I STURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •.••• DRIVE SAMPLE (UNDISTURBED) ~ ••• CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE I = 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. r I. I PROJECTNO 06403-12-01 I 1 I I I I I I I I I I I I I I I 0:: TRENCH T 50 :>-LIJ ZLLl'"' :>-'" C,!) l-Ou • 1-", IJJ~ 0 <J: DEPTH ...J :::I SOIL HZI-H • 0::'"' SAMPLE 0 0 -I-<I:u-Cf)u. ::ll-.IN ::t: Z CLASS ELEV. (MSL.) 175 DATE COMPLETED 11/8/99. <J: I-' Z • I-Z NO. I-::l (USCS) O::cnCf) IJJU Cf)LU FEET H 0 I-H:::I o . HI-...J 0:: EQUIPMENT TRACKHOE JD 555 24" .~cn5 :>-0.. Oz C,!) LlJLLl al 0::'"' I:o a.. 0::"", 0 u MATERIAL DESCRIPTION I-0 Z X CL TOPSOil. ~ ~ I--Stiff, humid to damp, dark brown, Sandy CLAY I-2 -- I--SANTIAGO FORMATION - I-4 -liard, damp, medium to dark olive, Silty -CLAYSTONE I---Very fractured and weathered, massive -CL I-6 -- I--- I-8 ~ ~ TRENCH TERMINATED AT 8 FEET - - Figure A-lOS, Log of Trench T SO 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 CONDITIONS AT OTHER LOCATIONS AND TIMES. I I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I, I I I 0:: TRENCH T51 >-IJ.I ZUJ'"' >-,... t!) I-Ot..) • 1-,... U1~ 0 <I: DEPTH ...J ::3: SOIL HZI-H. 0::'"" IN SAMPLE 0 Cl CLASS I-<J:U-(/)u. :;:)1- NO. Z z ELEV. (MSL.) 165 DATE COMPLETED 11/8/99 <1: ..... ' z. I-:-z I-:;:) O::cnCl) UJe.,) FEET ' (USCS) I-H::3: ,0 • Cl)UJ H 0 HI-...J 0:: IJ.IcnO >-a. EQUIPMENT TRACKHOE JD 555 24" z ...J Oz t!) UJUJca 0:: ...... ~o a.ct::v 0 u MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUM -. Stiff, very moist, reddish-brown, Clayey GRAVEL I-2 -with boulders - I---Massive, with mixture of rounded cobbles and -~ angular boulders of Jsp (18" +-) I-4 -GC - . I-.:.. l- I-6 -~ l- I- TRENCH TERMINATED AT 7 FEET REFUSAL Figure A-106, Log of Trench T 51 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. , I I PROJECT NO 06403-12-01 I I I I I I I I I I I I I I I I, I 0::: TRENCH T 52 )-lIJ ZUJ"" )-"" (!) l-Ou • 1-"" UJX ° <J: DEPTH -I ::I SOIL HZI-H. 0::: ...... SAMPLE ° Cl CLASS ~<I:~ (J)u. :::;:)1-IN :t: z ELEV. (MSL.) 137 DATE COMPLETED 11/8/99 0::: }-,(I) z. I-Z NO. I-:::;:) I-(J)::I UJu (l)lIJ FEET H ° (USCS) lIJHO 0. ~I-' -I 0::: Z(J)-I )-0.. (!) EQUIPMENT TRACKHOE JD 555 24" lIJUJec 0:::'"' L:z 0 0..0::: ...... 0 U MATERIAL DESCRIPTION I-0 :"0:': .::.: I--l'~-!:} FILL :- 2-r~·:1. Loose, humid to dar.np, light brown, Gravelly, fine I-2--pP-GM SAND with some silt - I--ili~~ l- I-4 -l- I--I-- I-6 --Becomes loose, damp to moist, light brown, coarse I-GRAVEL with oversize boulders > 2' diameter I--I-, I-8 -l- I--l- I-10 -:.:.:.::~:.~~ l- I--l~f~ -Becomes loose, moist, dark brown, Sandy, coarse I-GRA VEL, with roots, porous, organic odor, may I-12 -be reworked, alluvium l- I--l- I-14 --Becomes very moist to wet I-~:~.:: .. ::~~\ -Caving from 12 feet I- TRENCH TERMINATED AT 15 FEET - - Figure A-107, Log of Trench T 52 LCG SAMPLE 'SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED DR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) iJ . .. CHUNK SAMPLE ~ ... WATER TABLE DR 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 0:: TRENCH T53 :>-LIJ ZL1J"" :>-"" (!) l-Ou • 1-"" L1J~ 0 <t DEPTH -.J :::r; SOIL I:!Zt;: H. 0::"" SAMPLE 0 0 <t <1:, (/)u., ::;)1-IN ::c z CLASS ELEV. (MSL.) 145 DATE COMPLETED 11/8/99 0::1-[1) z. I-Z NO. I-::;) I-CO:::r; UJu [l)LIJ FEET H 0 (USCS) UJHO O. HI--.J 0:: EQUIPMENT TRACKHOE JD 555 24" zco-.J :>-[L Oz (!) L1J UJal 0::"" :E:o [La::"" 0 u MATERIAL DESCRIPTION -0 ~ --COll.UVIUM r- Stiff, moist, dark brown, Gravelly-Sandy CLAY -2 -CL I- -. -~ I- -4 -b --~ SANTIAGO FORMATION r CL Hard, moist, light olive-brown, Gravelly-Sandy -6 -CLAYSTONE, with angular clasts of volcanic ,.... rocks --~ r , -8 , TRENCH TERMINATED AT 8 FEET -- Figure A-lOS, Log of Trench T 53 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. I I PROJECTNO . 06403-12-01 I I I I I I I I I I 1- I I I I I 0:: TRENCH T54 >-LU Zw'" >-" to l-ou· 1-", LU~ ° <I: DEPTH ..J :I SOIL HZI-H. 0::"" SAMPLE ° 0 CLASS I-<t:u. (J)u. :::ll-IN NO. Z z ELEV. (MSL.) 240 DATE COMPLETED 11/8/99 <I: I-"-z. I-z I-:J (USCS) O::(J)(J) LUe.,) (J)I.J.I FEET H ° I-H:I O. HI-..J 0:: LUCIlO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zw..J C,!) ~c::e 0::'"' :2::0 0 CJ MATERIAL DESCRIPTION c-O V/.'":/; :--~:") TOPSOll. :-{// SC Loose, humid, dark brown, Clayey SAND, some r 2 -~/-:-: silt -- r --;//' ~ \t-l-SANTIAGO PEAK VOLCANICS r-4 -~ \"1' l-- Very weathered and altered, reddish-brown, weak r -~ \"1' l-VOLCANIC ROCK - c-6 -r-;,\" • -Very fractured and hydrothermally altered, -~ I'l-excavates to a gravelly, clayey sand r-J:\" • :--~ I'l-- '{t" I r 8 TRENCH TERMINATED AT 8 FEET Figure A-I09, Log of Trench T 54 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· 1 I I I I I I I I I I I I I I I I PROJECT NO . 06403-12-01 0:: TRENCH T55 >-1LI ZI.J..l"" >-"" (!) l-Ou ' 1-"" 1LI~ 0 <I: DEPTH ...l 5 SOIL HZI-,~ , 0::'"" SAMPLE 0 I-<I:LL. zLL. ::ll-IN NO. ::z: z CLASS ELEV. (MSL.) 150 DATE COMPLETED 11/8/99 <1:1-' lLI' I-z O::enCJ) FEET I-::l '(USCS) I-H::3: C~ CJ)UI H 0 HI-...J 0:: Wen O >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zl.J..l...l (!) wo::aJ 0::'"' :1::.0 0.. '"' C u MATERlAL DESCRIPTION I-0 ~ I--ALLUVIUM I- CL Stiff, damp, dark brown, very Sandy CLAY I-2 -l- I--V) -Irregular "v-shape" contact l- I-4 -::f:rt: SM SANTIAGO FORMATION l-. ;~,:,: ... . . . Dense, damp, light brown-tan, Silty, medium l-... SANDSTONE, massive TRENCH TERMINATED AT 5 FEET - ; I Figure A-110, Log of Trench T 55 I . LCG SAMPLE 'SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNO I STURBED) ~ ••• 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 I 0:: TRENCH T56 >-LU ZUJ'-" >-"'-C,!) l-Ou • 1-,-.. UJ:-': ° <I: DEPTH -l 3 SOIL HZI-H. 0::"" SAMPLE ° CI CLASS I-<t:u.. (l)u.. ::;)1-IN NO. :I: Z ELEV. (MSL.) 185 DATE COMPLETED 1118/99 <I:t-" Z. I-z I-::;) (USCS) O::cn(l) LlJ u (/)UJ FEET H ° I-H 3 C. HI--l 0:: LlJcnO . >-~ Oz C,!) EQUIPMENT TRACKHOE JD 555 2411 zUJ-l .1:0 ~o::e 0:: c u MATERIAL DESCRIPTION '-0 ~ --CL TOPSOIL I-Stiff, damp, dark brown, Sandy CLAY -2 -.. / l- i--I~ I SANTIAGO FORMATION I- ,.. 4 -CL Very stiff to hard, moist, light olive, Silty l-. I CLAYSTONE ~ --Very weathered and fractured ,.. r-6 TRENCH TERMINATED AT 6 FEET I . . . Figure A-lll, Log of Trench T 56 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. I I PROJECTNO 06403-12-01 I. I I I I I I I I. I I I I I I I I 0:: TRENCH T57 >-W ZIJJ>'" >-" t!) l-~ °u . 1-...... LiJ~ ° <I: DEPTH ...l ::3: SOIL HZl-H. 0::'"" SAMPLE 0 Cl CLASS l-<J:lL. enlL. :::ll-IN ::I: Z ELEV. (MSL.) 180 DATE COMPLETED 11/8/99 <1:1-' z. I-Z NO. l-::::l 0:: en en UJ u enW FEET H ° (USCS) l-H::3: c. Hl-...l 0:: Wen O >-0-Oz EQUIPMENT TRACKHOE JD 55524" zlJJ...l t!) ~o::e 0:: v :1::0 C u MATERIAL DESCRIPTION f-0 0 r -CL TOPSOIL -X Stiff, damp, dark brown, Sandy CLAY i-2 -- I--::~:~::t: SANTIAGO FORMATION -"t ""f SM f-4 -:-"( Dense, damp, light olive to tan, Silty, fme -.. ( ··t9 " " " SANDSTONE, with some clay . ." r " . " TRENCH TERMINATED AT 5 FEET , - Figure A-ll2, Log of Trench T 57 LCG SAMPLE SYMBOLS o ... SAMPqNG 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 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 0:: TRENCH T58 >-W ZLLI'" >-'" (!) l-Ou • 1-,.... w~ ° <t DEPTH -I :3: SOIL HZI-H. 0::'"' SAMPLE ° 0 1-<eLl. (/)u. ~I-IN ::t: Z CLASS ELEV. (MSL.) 170 DATE COMPLETED 11/8/99 <tl-' Z. I-Z NO. I-~ (USCS) O::encn UJu cn w FEET H ° I-H:3: O. HI--I 0:: Wen O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" ZLLI-I (!) UJo::l!l 0:: ...... E:o 0.. v-0 (.) MATERIAL DESCRIPTION I-0 B5 :... -CL TOPSOn.. ,,.. % Stiff, humid to damp, dark gray-brown, Sandy -,... 2 -CLAY ,.. -::flt. SANTIAGO FORMATION - I-4 -::t:~::f: Dense, damp, light reddish-brown, Silty, coarse '"-' 'r -'f SM S{\NDSTONE, massive ... I--: ... ~.: . I-r' f I-6 =: :1::. TRENCH TERMINATED AT 6 FEET , Figure A-113, Log of Trench T 58 LCG SAMPLE SYMBOLS o '" SAMPLING UNSUCCESSFUL ~ '" DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE ,(UNDISTURBED) Iii;] ••• 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 PROJECTNO 06403-12-01 I I I I· I I 1 I I I I I I I I I I ~ TRENCH T59 >-w ZUJ"" >-" t!) l-Ou • ~'"' w~ ° <J: DEPTH ...l :3 SOIL HZI-0::"" SAMPLE I-<l:L1.. en· ° Cl CLASS zu.. :::)1-IN NO. ::c z ELEV. (MSL.) 238 DATE COMPLETED 11/10/99 <1:1-' w· I-z O::cnCJ) FEET I-::l (USCS) I-H:3 O~ en W H ° HI-...l ~ Wcn O >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l t!) UJo::lIl 0::'"' :E:o 0.. """ 0 u MATERIAL DESCRIPTION I-0 1~0 I--7/ FILL I- ~/} SC Loose, dry to humid, brown, Clayey, Gravelly I-2 -?;;;:}: SAND, with oversize debris, trash, wood, silt l- I-- I-4 -(/.j TERRACE DEPOSIT ,... 0(;(/ Medium dense, reddish-brown, Clayey, fme SAND -l!/j -Massive, with lenses of clay and sand, oxide and - 6 carbonate fracture coatings, some porosity, --~;;) root-voids - -v./} '- \ 8 -1/.,1 SC '-~/.0 -'-(0 '- 10 -~// '- -X/ - 12 -;J{; '-//,. -Irregular depositional contact :t;·;~ --.. j. SANTIAGO FORMATION -:r .:( -14 -::t=i\ Dense, damp, light orange to olive, Silty, fme -SM SANDSTONE, with some clay - -::t:1\ - -16 .: :j:. TRENCH TERMINATED AT 16 FEET - Figure A-114, Log of Trench T 59 f LeG . SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ •.• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) iiiJ ••• 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 I 0:: TRENCH T60 >-UJ ZLLI""" >-,... C,!) l-Ou • 1-...." LIJ~ 0 <t DEPTH ..J 3 SOIL '. HZI-H • 0::'"' SAMPLE 0 t:l I-<J:u.. (1)1..1. =>1-IN :::I: Z CLASS ELEV. (MSL.) 190 DATE COMPLETED 11/10/99 ~I-~ Z. I-Z NO. LlJ U FEET l-=> (USCS) 1-(1)3 C. enUJ H 0 LlJH O HI-..J 0:: Zen..J a.' Oz EQUIPMENT TRACKHOE JD 555 24" >-v C,!) LlJLLl CC 0:: 40 a. 0:: v c u MATERIAL DESCRIPTION -0 ~-1.1l - -l~ "I ALLUVIUM -Loose, humid, dark gray-brown, Silty, fine SAND -2 -:"1 r I--Very porous, with root-voids, rootlets - --:1.-"1-- -4 -l~ "I - -:"1 t-I-SM " - :1" -"I--6 -l11 - --:-1 r I-- -8 ---1.l - ,--11-1 ~ -10 -:-1 t-[-- ~ ---1.-"1--Becomes loose to medium dense, light brown-tan, :... "f'-, Silty, fine SAND L-12 -:"1 r [--No root-void, rootlets, becomes cleaner with - i--depth -:1" l ,-14 -l"1 - '--:"j r I-- i-16 -:ll - "1".1 -I i--:j t I--Becomes very moist - -18 TRENCH TERMINATED AT 18 FEET (CAVING) -- Figure A-lIS, Log of Trench T 60 ' LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL I§§ ••• 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 I· I I I I I I PROJECT NO 06403-12-01 0:: TRENCH T 61 >-w ~UJ"'; >-" (!) l-I-...... w~ 0 <I: HUI-DEPTH ...J :3: SOIL I-ZIJ.. H • 0::'" SAMPLE 0 c CLASS <I: <I: , (J)IJ.. ::;)1-IN NO. :r: z ELEV. (MSL.) 230 DATE COMPLETED 11/10/99 0::1-(1) z. I-z I-::;) 1-(1):3: Wu (l)Ul FEET H 0 (USCS) WHO c • HI-...J 0:: EQUIPMENT TRACKHOE JD 555 24" zoo...J >-0.. Oz (!) wUJaJ 0:: ..... ll:o 0.. 0:: ..... C ·U MATERIAL DESCRIPTION r-0 v./-~ r--[?;.) COLLUVIUM r-r~/ SC Medium dense, humid, dark brown, Clayey, fine . r-2 -v.-/j SAND r- r--/.j' -Porous, with roots, burrows i--Irregular, out-of-slope inclined contact . 'f'~'r r-4 -' .. ~., SANTIAGO FORMATION ,... . :'t+ ':f" Very dense, damp, light brown to tan, Silty, fine i--' ...... to to .. ,... ::f:~::f SM SANDSTONE, Massive to faintly.banded r-6 -:t~':f' i- ." ,. to. to -Near-horizontal bedding r--':f:~:t i- t> :~: • .. :.: :. , I-8 TRENCH TERMINATED AT 8 FEET . . . Figure A-116, Log of Trench T 61 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) IiiJ ... 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 I 0:: TRENCH T62 >-IJJ ZU/""' >-""' (!) I-0 <I: °u· 1-....... IJJ~ DEPTH -' :3: SOIL HZI-H • 0::'"' IN SAMPLE 0 0 CLASS I-<el.l.. (t)l.I.. :;:)1-NO. J: z ELEV. (MSL.) 120 DATE COMPLETED 11/10/99 <I: 1-' z. I-z I-:;:) (USCS) O::cn(l) lJJu (l)1JJ FEET H 0 I-H:3: C • HI--' 0:: UJcnO >-n.. Oz EQUIPMENT TRACKHOE JD 555 24" zu/-' (!) If C::S 0::""" :E:o C u MATERIAL DESCRIPTION I-0 ~ I--ALLUVIUM I- Stiff, moist, dark brown, Sandy CLAY I-2 --Porous, with rootlets, root-voids, burrows - '--T62-1 0 CL ,.. ~ '. -103.7 9.3 I-4 --0 - r --- T62-2 ~0 r 6 -'"'" .-/ ,... - : ~/) r 8 -TERRACE DEPOSIT -T62-3, f./> SC Medium dense, damp to moist, reddish-brown, 106.9 9.6 I--Clayey, medium SAND, some coarse sand -T62-4 7/1--Massive, with minor root-voids ,. 10 .;/ TRENCH TERMINATED AT 10 FEET - \ Figure A-117, Log of Trench T 62 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. I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I 0:: TRENCH T 63 >-UI ZUJ'" >-,... (,!) I-O·u· 1-"" UI~ 0 <I: DEPTH -l ::3: SOIL HZI-H. 0:: v SAMPLE 0 0 I-<J:LI.. CIlLl.. :::ll-IN ::I: Z CLASS ELEV. (MSL.) 100 DATE COMPLETED 11/10/99 <I: I-'\. z. I-Z NO. I-:::l O::cn Cll Ul U CIlUJ FEET H 0 (USCS) I-H::3: 0. HI--l 0:: UlcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" ZLLI-l (,!) Ule:::rxl 0::"" I:o a.. v 0 u MATERIAL DESCRIPTION 0 ~ -ALLUVIUM ~ Stiff, humid, dark brown, Sandy CLAY to very -2 -Clayey SAND - --~ -Porous, with rootlets and root-voids, burrows - -4 -CL-SC - --~ -- -6 -- ---V/ I -8 -- ,... -~ -------------------------------------- -10 -Stiff, moist, light brown, very Sandy CLAY --Massive, with scattered charcoal fragments and --root-voids - -12 -~ - '-..., CL - ,... 14 -0 - ,... --0. ,... 16 -r --Z t- -18 -. :/ -Becomes Very stiff, very moist, light. olive, very t-Silty CLAY, with some fine sand TRENCH TERMINATED AT 18.5 FEET - Figure A-lIS, Log of Trench T 63 LCG SAMPLE SYMBOLS [] ••• 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 SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. I. I·· PROJECT NO 06403-12-01 I· I I I ·1 I I I I I I I I I I I I 0:: TRENCH T 64 :>-0. W Zw"" :>-0. "" CD I-0 <I: °u . 1-", W~ DEPTH ..J :::I SOIL Hzl-H. 0:: ...... IN SAMPLE 0 0 CLASS I-<J:IJ.. OOIJ.. :::ll-NO. ::c z ELEV. (MSL.) 125 DATE COMPLETED 11/10/99 <1:1-" z. I-z I-:::l {USCS) 0:: 00 en wu FEET H 0 I-H:::I c. cn W· HI-..J 0:: Wen O :>-00.. Oz CD EQUIPMENT TRACKHOE JD 555 24" zw...! Wo::lXl 0::...... . 1:0 0.. '-' C u MATERIAL DESCRIPTION I-0 - I--~ ALLUVIUM -r Stiff, humid, dark gray-brown, Sandy CLAY I-2 --Massive, porous, with rootlets, root-voids and r I--~ burrows r -4 -CL r --~ fo- I-6 -r I---Becomes ~oist, brown l- I-8 -~ r- I--:1. -1."1-SM TERRACE DEPOSIT r-IO -Jot Of '-.: Medium dense, damp, light reddish-brown, Silty, I--~ ........ __ xge2i~ 10_ c.?~~e _S~!?!.. ~i!h _s~xge_ clar __________ , ,. CL I-12 -. :; Very stiff, moist, olive-brown, Sandy CLAY. - ~/.} ... I'lastic, with slickensided fractures (discontinuous) . ,. '--~----------------------------------, -Medium dense, moist, light brown, Clayey, fine to I-14 -{// medium SAND - [(/-~ SC. I--/.{ - I-16 TRENCH TERMINATED AT 16 FEET Figure A-119, Log of Trench T 64 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTlJRBEO) ~ ... 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 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 0:: TRENCH T65 >-LtJ ZUJ""' >-""' (.!) I-0 <I: °u " I=i""' w~ DEPTH ..J :3: SOIL HZI-0::'-'" SAMPLE 1-<t1.J.. (I)" 0 c CLASS ZI.J.. :JI-IN :::I: Z ELEV. (MSL.) 117 DATE COMPLETED 11/10/99 <1:1-' NO. 0::(1)(1) W" I-Z FEET I-:J (USCS) I-H:3: c u (l)W H 0 " HI-..J 0:: Ul(l)O >-a.. Oz (.!) EQUIPMENT TRACKHOE JD 555 24" zUJ..J Ulo::a::l 0::""' l::o a.. '-'" CI u MATERIAL DESCRIPTION -0 0. --COLLUVIUM - CL Stiff, humid to moist, dark gray-brown, Sandy -2 -CLAY - --0-- -4 -~// TERRACE DEPOSIT I- --{// Medium dense, moist, reddish-brown, very Clayey, I-- 7./~ medium to coarse SAND -6 -):>1--Remolded clay seam, 112" thick, N20W, 25SW I- --/.// SC -Massive, with scattered pebbles and charcoal I-, /./} fragments -8 -f/.~ I- --;/0 I- -10 -:(0 I- --~/,/' I- -12 -/j; I- - - {/.~ -Remolded clay seam, 1/2" to I" thick, N30W, ~~ ML 15SW; possible sheared contact -14 SANTIAGO FORMATION Hard, damp, light 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 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 T66 >-UJ ZLIJ" >-""' CD l-Ou . 1-" UJ~ ° <I: DEPTH -l ::J: SOIL HZI-H. 0::'-' SAMPLE ° 0 CLASS I-<J:LI-Cl)LI-::::ll-IN ::c z ELEV. (MSL.) 93 DATE COMPLETED . 11/10/99 <I: 1-' z. I-Z NO. I-::::l O::c.nCl) UJu Cl)UI FEET H ° (USCS) I-H::J: 0. HI--l 0:: UJc.n 0 >-0.. Oz EQUIPMENT TRACKHOE JD 55524" zLIJ-l CD UJc::1:C 0::'-' 1:0 0.. v 0 u MATERIAL DESCRIPTION -0 ~ --ALLUVIUM -Stiff to very stiff, damp to moist, dark -2 -gray-brown, Sandy CLAY - --~ -Massive, porous, with root-voids, burrows and r scattered charcoal fragments -4 -I- ---~ I-CL -6 -I- ---Becomes stiff, very moist I-0 I -8 -I- --% I- -10 -~/} --TERRACE DEPOSIT I-;/> Medium dense, moist, light reddish-brown, Clayey, -12 -:;:/:~ SC medium SAND, with some silt, massive I- --;//. I- -14 - ~/~-; ~ CL SANTIAGO FORMATION -Hard, moist, light olive, very SiLty CLAYSTONE TRENCH TERMINATED AT 15 FEET Figure A-l2l, Log of Trench T 66 LCG 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 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 PROJECT NO. 06403-12-01 0:: TRENCH T67 >-LlJ ZLLl" >-1"\ C!) l-Ou • 1-" LlJ~ ° <I: DEPTH ..J ::3: SOIL HZI-H. 0::"" SAMPLE ° 0 CLASS 1-<r;LI.. Cl)LL. :::)1-IN NO. Z Z ELEV. (MSL.) 95 DATE COMPLETED 11110/99 <I:r-' Z. I-z I-:::) (USCS) O::CI)CI) LlJu Cl)lJJ FEET H ° I-H::3: O. HI-..J 0:: WenO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" ZLLl..J C!) ~o::S 0:: v ~o 0 Co) MATERIAL DESCRIPTION ,.. 0 ~ , COLLUVIUM ---Stiff to very stiff, humid, dark gray-brown, Sandy -2 -CLAY, massive, porous, with rootlets, root-voids - -~ CL and burrows -,.. -4 -- ----/ -Irregular contact :10 10"1- c-6 -l.1·f TERRACE DEPOSIT r-T67-1 SM Medium dense, moist, light brown to 103.4 11.4 --T67-2 :01 t-l-reddish-brown, Silty, fine to medium SAND, some f-, clay, massive -8 -:1.-"1-f- --oJ.1·( -------------------------------------- c-10 -r;/.} Medium dense,. moist, light reddish-brown, Clayey, I-{/.? medium SAND r -v.-/} r- '-12 -/. 0 . f-V~% SC --~/-I- -14 -~/,1 f- c--'~ SANTIAGO FORMATION f-CL -16 Very stiff, very moist, light olive to gray, Silty CLAYSTONE, very weathered, with some sand TRENCH TERMINATED AT 16 FEET - Figure A-122, Log of Trench T 67 LeG SAMPLE SYMBOLS [J ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST II ... 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. I I PROJECTNO . 06403-12-01 1 I I I· I I I 1 I· I I I, I I I I I 0:: TRENCH T68 >-W ZUJ""' >-" CD I-0 <I: °u . 1-...... I..LI~ DEPTH ...l ::t SOIL HZI-.H • 0::" IN SAMPLE 0 0 CLASS 1-<e1J.. (/)IJ.. ::ll-NO. :I: z ELEV. (MSL.) 150 DATE COMPLETED 11110/99 <1:1-' z • I-z I-::l 0:: (I)(/) Wu FEET H 0 (USCS) I-H::t o • C/)UJ HI-...l 0:: LIJ(I)O >-0.. Oz CD EQUIPMENT TRACKHOE JD 5552411 zUJ...l ~o::e 0::'-' ~o 0 u MATERIAL DESCRIPTION I-0 [%; r--CL TOPSOll.. i-Stiff, humid, dark brown, Sandy CLAY I-2 -I I--SANTIAGO FORMATION -Stiff, moist, olive-brown, Silty CLAYSTONE r-4 -CL -Very fractured and weathered - r---___ -!I~~izE1!.t~ E~d~iE-!t c..O!!t~C! ___ :.. _____________ • - ::f:rt: I-6 -"9 .. , Very dense, damp, light olive to brown, Silty, fme .-'T "f' .... "~"" .. SM SANDSTONE, some clay, blocky r--·:f: :'f -, r' . , , I-8 :·t· .:,: TRENCH TERMINATED AT 8 FEET - - - Figure A-123, Log of Trench T 68 LCG SAMPLE 'SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ '" DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLECUNDISTURBED) ~ ••• 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 I I PROJECT NO - DEPTH SAMPLE IN NO. FEET I-0 I-- I-2 - I-- I-4 - I-- I-6 - 06403-12-01 0:: >-w t.!) l-0 <I: ...J ::J: SOIL 0 C CLASS Z Z I-::J (USCS) H 0 ...J 0:: t.!) SM TRENCH T69 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 irregtllar contact ::~:J:;t: :'~'J':( SM SANTIAGO FORMATION ZlJJ"" >-"" Ou • 1-"" w~ HZI-H. 0::"'" I-<I:u. Cl)u. :::lI-11111/99 <1:1-" z. I-z ~(J)~ w(..) Cl)UJ WHO O. HI-zCl)...J >0.. Oz wlJJrc 0::"'" :E:o 0..0::"", 0 U - - I--::~: ::~ Dense, very moist, light reddish-brown, Silty, h+r:ih+il-i----+ " coarse SANDSTONE r t--__ r----\-----1 I-8 -\ -Weathered, fractured ' I ~----------------------------------, -Hard, moist, light olive, Clayey SILTSTONE ML r --Blocky - I-10 -- i- TRENCH TERMINATEJ;> AT 11 FEET Figure A-124, Log of Trench T 69 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ~ ••• 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. I I; PROJECT NO. 06403-12-01 I 1 I I I I I I I 1 I I I I I I I DEPTH IN FEET -0 '-- '-2 - - - '-4 - -- - 6 - - - I-8 SAMPLE NO. >-t.!) 0 ...I 0 ::I: I-H ...I ~ UJ l-<J: :3: SOIl C Z CLASS ::J (USCS) 0 ~ t.!) SC CL ~L-CL TRENCH T70 ELEV. (MSL.) 180 DATE COMPLETED 11/11/99 EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION FILL Loose, dry, dark brown, Clayey, Gravelly SAND COLLUVIUM Stiff, humid, red-brown, very Sandy CLAY SANTIAGO FORMATION Hard, damp, light olive-brown, very Clayey SILTSTONE / ,,~----------------------------------------~ TRENCH TERMINATED AT 8 FEET Figure A-125, Log of Trench T 70 ZUJ"" >-" Ou • 1-" UJ~ HZI-H • ~v l-<J:lL. (J)lI.. ::JI-<tl-" z • I-z ~(J)(J) UJu (J)UI I-H:3: C. HI-W(J)O >-0.. Oz zlJ.J...I ~o::e 0::'"" :£:0 C U - I- I- I- I- LeG 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. I I I I I I I I I I I I I I I I I I I PROJECT NO. Oh4.m-12-0l f TRENCH T71 >-ZI.I..I'" >-,.... (!) 0 °u . 1-,.... UJ~ DEPTH ...J SOIL HZI-H. 0:: .... IN SAMPLE 0 CLASS I-<r:u.. enu.. ::)1-:x: ELEV. (MSL.) 105 DATE COMPLETED 11/11/99 <1:1-' z. NO. I-0:: en (I) IJJU I-Z FEET -H ~ (USCS) I-H 3 o. C/)UJ ...J UJenO >-ll.. HI- EQUIPMENT TRACKHOE JD 555 24" zl.I..I..J oz ~o::e 0::"" I:o 0 u MATERIAL DESCRIPTION f-0 ~ CL f--TOPSOIL II Stiff, humid, dark brown, Silty CLAY, with some f-2 -sand l- f--SANTIAGO FORMATION f-CL Hard, moist, olive-gray, Silty CLAYSTONE f-4 --Massive, blocky r f--~I -i- i-6 TRENCH TERMINATED AT 6 FEET - , Figure A-126, Log of 'Trench T 71 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 I I I I I I I PROJECT NO. DEPTH IN FEET I-0 I-- ~ 2 - ~ - SAMPLE . NO. ~ 4 -T72-1 I-- ~ 6 - I-- ~ 8 - - - -10 Oli403-1 2-01 g II ..l SOIL ~ CLASS I-I ~ (USCS) ~ I~ CL SC TRENCH T72 ELEV. (MSL.) ___ 1=2.;..0 __ DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION TOPSOll. Stiff, humid, dark J;;La.~ -bLVWll, Sandy CLAY TERRACE DEPOSIT Medium dense, moist, reddish-brown, Clayey, fine to medium SAND, with pebble gravel along SE dinnin" contact SANTIAGO FORMATION Very stiff, moist, light olive with white mottling, Silty CLAYSTONE -Remolded clay seam N60W, 35SW, -114-112" thick, with gypsum linings -Very weathered and fractured, massive, with abundant calcium sulfate TRENCH TERMINATED AT 10 FEET Figure A-127, Log of Trench T 72 ZUJ"" >-1"\ °u • 1-"" L1J~ HZI-H • c::V I-<tu. (t)u. ;:)1-11/11/99 <tl-' z. D::(t)(J) UJu I-z I-H::3: C • (t)UI HI-UJ(t)O >-0-.OZ ZUJ..l ~o::e o::~ '. 4:0 C U' I- I- I- I- t- LCI SAMPLE SYMBOLS [J .•• SAMPLING UNSUCCESSFUL ~ ... DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATICN 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 PROJECTNO 06403-12-01 I I I I I I I I- I I I I I I I I I DEPTH IN FEET f-0 f-- f-2 - -- - 4 - -- -6 - :-- f-8 SAMPLE NO. )0- C!) 0 ..J 0 :r: I-H ..J 0::: w ..... <I: ::t SOIL Cl CLASS z ::l ° (USCS) 0::: C!) CL ~L-CL TRENCH T73 ELEV. (MSL.) 110 DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION COLLUVIUM Stiff, moist, dark brown, Sandy CLAY -Massive with Imm -2mm spots of gypsum (?) SANTIAGO FORMATION . 11/11199 Hard, moist, light olive, very Clayey SILTSTONE- -Massive, fractured '~ ______ ~ ________________________________ --J TRENCH TERMINATED AT 8 FEET Figure-A-128, Log of Trench T 73 Zw"" >-,..... °u . 1-", IJJ~ HZI-H • 0::: ..... ..... <J:u. enU. ::ll-<J: ..... ' z . I-z 0:: en en wu CIlUi I--H::t Cl • HI-1LI enO >-0.. Oz Z 1LI..J 1LI 0:: co 0::'"" l::o 0.. >...; Cl U - - - - - - LeI 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. I I PROJECT NO 06403-12-01 0:: I I I I I I I I I I I I I I I I I TRENCH T74 >-lJ..I ZlLI"" >-"" g. l-Ou • 1-"" IJJ~ <r: DEPTH ...I ::3: SOIL HZI-H. 0::'"' SAMPLE ° Q I-<l:u" (t)U" ::::ll-IN :c z CLASS ELEV. (MSL.) 85 DATE COMPLETED 11/11/99 <1:1-" z. I-Z NO. I-::::l t:t:(t)(t) lJ.IU (t)UJ FEET H 0 (USCS) I-H3 Q • HI-...I 0:: ., lLI(t)O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zlJ.I...I (!) ~c::e 0::'"" ;S::o C u MATERIAL DESCRIPTION -0 r8 '--COLLUVIUM I-Stiff, moist, dark gray -brown, Sandy CLAY ,.. 2 -I- --~, l- I-4 -CL l- I--~ -l- I-6 -l- I--~ l- I-8 -~;;:.i.: I--.~. SANTIAGO FORMATION I-~ ... ~~ Medium dense, damp to moist, light brown to 10 -olive, Clayey, medium SANDSTONE, very I-~;if:' SC weathered, massive '--I-lY.':~ I-12 -·f'X· -Becomes less weathered, dense I-~~ ~. l-I--l*~~~ I-14 r~-/. • TRENCH TERMINATED AT 14 FEET - Figure A-129, Log of Trench T 74 LCG SAMPLE SYMBOLS [J '" SAMPLING UNSUCCESSFUL l§§ ••• 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 PROJECTNO . 06403-12-01 I I I I I I I I I I I I I I I I I D:: TRENCH T75 >-UJ zUJ ...... >-,.., (.!) I-°u' 1-", UJ~ 0 <I: DEPTH -l 3 SOIL HZI-H • 0:::'"" SAMPLE 0 0 CLASS I-<I:u. CIlu. :::ll-IN ::I: z ELEV. (MSL.) 98 DATE COMPLE:rED 11/11/99 <1:1-"-Z • I-Z NO. I-:::l c:::enen UlU tIlUJ FEET H 0 (USCS) I-H 3 o • HI--l D:: Wen O >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" ZUl-l (.!) ~o:::e D:: ...... ~o 0 u MATERIAL DESCRIPTION -0 ~ --ALLUVIUM I- Stiff, moist, dark brown, Sandy CLA Y ., '-2 -l- I--~ I- ~ 4 -I- '--~ CL l- I-6 -I- ---Becomes more moist I-Z I -8 -- :--:% - :-. 10 --Irregular transitional contact /V /1/ -~ /y Soft to stiff, very moist, olive-brown, Silty CLAY -I-/ // ~ -Very fractured, weathered, mixed texture, with I-12 -~~ ~ CL-CH numerous clay seams (possible weathered Santiago) ~ f--~~ -V 14 -~ ~I/ -Vv: y --~I ~ CL -16 -SANTIAGO FORMATION l-Very stiff to hard, moist, light olive, Silty -CLAYSTONE -Very fractured, blocky TRENCH TERMINATED AT 17 FEET , - Figure A-130, Log of Trench T 75 LCI SAMPLE SYMBOLS [] ••• 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. I. I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I 0:: TRENCH T76 >-UJ ZLLl ...... >-,... t!) I-°u . 1-"" UJ~ 0 <I: DEPTH -l :3: SOIL HZI-H. 0::'" SAMPLE 0 0 CLASS 1-<1:11.. (/)11.. ::ll-IN NO. :::r: z ELEV. (MSL.) 110 DATE COMPLETED 11/11/99 <1:1-' z. I-Z I-::l (USCS) O::CI)(/) UJu (/)LIJ FEET H 0 I-H:3: o • HI--l 0:: !.LICI)O >-a.. Oz EQUIPMENT TRACKHOE JD 55524" zUJ...l t!) g:o::S 0::""' ll:o ·0 u MATERIAL DESCRIPTION -0 VC CL --TOPSOIL I- ~ " Stiff, humid, dark brown, Sandy CLAY -2 -~ SANTIAGO FORMATION I- :--Hard, moist, light olive mottled with white, Silty I- ~ CLAYSTONE, with some sand, weathered with -4 -CL calcium sulfate (gypsum) mottling, massive l- e-\ -~I -Clay seam 1/8 n thick, low angle and discontinuous I- :-6 -- e--~ - e-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) ~ ••• 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 I I DEPTH IN FEET -0 I ~ - I I r-2 - r-- r-4 - r-- r-6 - - -I ~ 8 - I I I I I I I I-- I-10 . SAMPLE NO. 06403-12-01 0:: >-IJJ t!) l-0 <t -I ::3: SOIL 0 0 :J: Z CLASS I-~ (Uses) H 0 ..J 0:: CD 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 SANTIAGO FORMATION Very stiff to hard, moist, light olive, very Clayey 11/11/99 ~ SILTSTONE ~~ ________________________________________ --J/ . TRENCH TERMINATED AT lOFEET I I Figure A-132, Log of Trench T 77 ZUJ ..... >-'"' ou· 1-..... IJJ~ HZI-H. 0::'"' 1-<t;LL. cnLL. ~I-<I:I-' z. I-z C:::cncn .lJJu cnllJ I-H::3: 0. HI-I..L/cnO >-c.. Oz zUJ-I I..L/ o::aJ 0::"" 1:0 0-...., 0 Co) - - - Lce I SAMPLE SYM:eOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) I 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 I I 1 I I I I I I I I: I I I I I I 0:: TRENCH T78 > UJ ZlIJ'"' > ,.... t!) l-Ou • 1-,", LLl~ ° <I: DEPTH -l ::1 SOIL HZI-H • 0::"'" SAMPLE 0 0 I-<I:u. (/)u. :J' IN ::I: z CLASS ELEV. (MSL.) 180 DATE COMPLETED 11/11/99 <I: I-"-Z. 1-1-NO. I-:J o::(/)en LLlU enZ FEET H ° (USCS) I-H::1 o. H UJ -l 0:: LLl(/)O >D.. 01- t!) EQUIPMENT TRACKHOE JD 555 2411 zlIJ-l 0::'"" :E;z ~0::e3 0 0 u MATERIAL DESCRIPTION I-0 J"J:j- I--l10, AaUVIUM I- Loose, humid, dark brown, Silty, fine SAND I-2 -:'~ r to -Very porous, with rootlets, root-voids, burrows l- I--:1.l throughout l- I-4 -11°1 I-:'~ rIo I--I-:1· ."1-I-6 -ri 1. I- -I-:1 f I : SM 8 -:1, ."1-I- --'j'o"\o, -Contains trace clay, lighter brown I- -10 -:o~ t'lo I- -:1· ,"l-I-11°1 -12 -:'1 ~. 1° I- --I-:1-l -14 -ltl I- - -:1: n° l-SM TERRACE DEPOSIT -16 Medium dense, moist, light brown, Silty, fine SAND -Minor root-voids TRENCH TERMINATED AT 16 FEET Figure A-133, Log of Trench T 78 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. I I PROJECTNO 06403-12-01 I I I I I I I I·: I I I. I I I I I I 0:: TRENCH T79 >-lJ.J ZIJJ'"' >-,.... (!) I-0 <I: °u . 1-...... lJ.J~ DEPTH ..l 3 SOIL HZI-H. 0::'-" SAMPLE 0 c CLASS I-<J:IJ.. (/)IJ.. ::;)1-' IN NO. Z Z ELEV. (MSL.) 150 DATE COMPLETED 11/11/99 <1:1-' Z. I-Z FEET I-::;) (USCS) 0::: en(/) UJu (/)LIJ H 0 I-H 3 c. HI-..l 0:: LlJenO )-0-Oz EQUIPMENT TRACKHOE JD 555 24" zlJJ..l (!) ~e::e 0::'"' ::::::0 c Co) MATERIAL DESCRIPTION I-a ~ I--ALLUVIUM I- Stiff to very stiff, humid to damp, reddish-brown, I-2 -very Sandy CLAY l- I--% CL -Massive, porous, with root-voids and burrows i- I-4 -0 - I--:1-1:j--------------------~------------------ I-6 -.~ ... I -I SM Medium dense, damp, brown, Silty, fine SAND - :1 t.,_ -Porous, with root-voids, burrows I---- I-8 -~/.} TERRACE DEPOSIT - I--f// Medium dense, moist, reddish-brown, very Clayey - 10 -;::I~ SAND to Sandy CLAY -l-X/; -Massive, with minor porosity and slight coatings I--//./; of calcium carbonate/sulfate - I-12 -/.:/ I-!// I--&'1.0 SC-CL "l- I-14 -/0 l- I--~/~ l- I-16 -)/0 I-~/~ I--/f.~ l- I-18 ~L -',I TRENCH TERMINATED AT 18 FEET - I Figure A-134, Log of Trench T 79 LCG SAMPLE SYMBOLS [] '" SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE [] ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) Iiij '" 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 0:: TRENCH T80 >-LU ZUl" >-" t!) l-Ou • 1-" LU~ 0 (J: HI-DEPTH ...J :3: SOIL I-ZIJ.. H. 0::'"' SAMPLE 0 c CLASS a:(J:" (J)IJ.. ::;)1-IN NO. Z Z ELEV. (MSL.) 158 DATE COMPLI~TED 11/11/99 0::1-(J) z. I-z I-::;) (USCS) 1-(J):3: LU u CJ)LU FEET H 0 LUHO C. HI-...J 0:: EQUIPMENT TRACKHOE JD 555 24" z(J)...J >-c.. Oz t!) IJJUI£C 0:: .... ~o c..o:: .... c t.) MATERIAL DESCRIPTION -0 ~ --ALLUVIUM -Stiff, humid to damp, dark brown, Sandy CLAY -2 --~ CL --- -4 -- - -~ -Becomes soft to stiff, moist, reddish-brown, very r '-6 -Sandy CLAY r -Porous, with root-voids, scattered charcoal - -fragments r ~ , -8 -r :--I- -10 -~ l- i--r i-12 -r i--~ l- I-14 --Becomes more sandy, less porous r '--~ r i-16 -I- --t/; r :-18 TRENCH TERMINA'FED AT 18 FEET Figure A-135, Log of Trench T 80 LCG SAMPLE SYMBOLS [] ••• SAMPLING UNSUCCESSFUL ~ __ • DISTURBED OR BAG SAMPLE (] • _. 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. 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 -0 -- - 2 - -- - 4 - -- - 6 - - SAMPLE NO. >-. (!) 0 ...l 0 ::c I-H ...l ~ UJ ~ ::3: SOIL C'l CLASS z ;:) 0 (USCS) 0::: (!) SC ML TRENCH T81 ELEV. (MSL.) ·190 DATE COMPLETED EQUIPMENT TRACKHOE JD 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 Figure A-136, Log of Trench T 81 ZUJ"" > " Ot..) • 1-...... 1J.J~ HZI-H • 0:::"'"' I-<tu. CJ)u. ;:)1-11111199 <tl-' z • I-z O:::(J)cn UJu 1-1-1::3: c. cnUJ HI-LL1(J)o >0.. Oz zlJ.J...l 0:::'"' :E:o LL1o::lXl 0.. ...... C U - - - LCG SAMPLE SYMBOLS [J ••• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST II ... 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 PROJECTNO 06403-12-01 I, I I I I I I I I I I I: I I I I I 0:: TRENCH T 82 >-UJ ZLLI'"' >-'"' (,!) l-Ou • I:i~ Ul~ ° <t: DEPTH -' :3: SOIL H:zl-0::'"" SAMPLE 1-c:LL. (I). 0 Cl zu. :::JI-IN ::c: Z CLASS ELEV. (MSL.) 175 DATE COMPLETED 11/11/99 <t:1-' Ul· I-Z NO. I-:::J 0::(1)(1) C~ (l)UI FEET H ° (USCS) I-H:3: HI--' 0:: W(I)O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zLLI-' (,!) ~o::S 0::"" :E:o C (..) MATERIAL DESCRIPTION -0 u. --ALLUVIUM I- Stiff, damp, dark brown, very Sandy CLAY ,-2 --Very porous, with root-voids, burrows I- :--~ I- -4 -I- --~ -I-CL -6 -I- --I-Z : -8 -I- --I- ,.. 10 -% Jil SM --lq·\ TERRACE DEPOSIT c.- . 'j-'" Medium dense, moist, light brown, Silty, coar~e . ,-12 -~/} ... SAND, with some fine GRAVEL ,.. ~----------------------------------, --SC Medium dense, moist, reddish-brown, Clayey, fme -{~/ to medium 'SAND, massive . ,.. 14 -l(,:; - - TRENCH TERMINATED AT 15 FEET - Figure A-137, Log lof Trench T 82 LCG 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 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. 06403-12-01 ~ TRENCH T83 >-UI zw ..... >-..... t!) I-0 <I: °u· . 1-..... UI~ DEPTH -l ::3: SOIL HZ"'" H. ~'" IN SAMPLE 0 0 CLASS I-<I:IJ.. (/)u.. :::lI-ND. ::I: Z ELEV. (MSL.) 130 DATE COMPLETED 11/12/99 <I:I-' 2:. I-z I-:::l 0:: (I)(/) UlU FEET H 0 (USCS) I-H::3: c. (/)LIJ HI--l 0:: UI(I)O >-0-Oz t!) EQUIPMENT TRACKHOE JD 555 24" Zw-l 1f~9 ~'" -x: 0 0 u MATERIAL DESCRIPTION -0 X --. COLLUVIUM -Very stiff, moist, dark olive to brown, very Sandy -2 -CLAY - --U. -Massive, porous, with root-voids, rootlets -CL -4 -I- --Z 1-. -6 -I- -:./ -Transitional, near-horizontal ~ r' CL , 8 -a ~ TERRACE DEPOSIT (?) I-Stiff, very moist, light olive, Silty CLA Y --V-~. ... '" __ -y ~r'f. ~~a~~~<!, .:vit!! ~i~c~I!1ip.1!0E~ clax ~e~ _______ , ,. SM 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 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. I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I 0::: TRENCH T84 :>-III Zw"" :>-"" (!) l-Ou . 1-"" LLI~ ° <t DEPTH ..l :3: SOIL HZI-H. 0:::'"" SAMPLE 0 0 l-(tl.L. Cf)\.L ::JI-IN :x:: z CLASS ELEV. (MSL.) 170 DATE COMPLETED .11/12/99 (tl-' z. I-Z NO. I-::J 0:::c.nCf) LLlU Cf)LU FEET H ° (USCS) I-H:3: C. HI-..l 0::: LUc.n 0 :>-0-Oz EQUIPMENT TRACKHOE JD 55524" Zw..l (!) LUo:::tO 0:::'"" :E:o 0-.'-" C (.) MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUM r Stiff, damp to moist, dark brown, Sandy CLAY r 2 -CL l- I--« l- I-4 -~ I--SANTIAGO FORMATION -r CL Stiff, very moist, olive-brown, Silty CLAYSTONE, I-6 -very weathered, fractured, with discontinuous r r -slickensided clay seams. l- I-8 TRENCH TERMINATED AT 8 FEET - Figure A-139, Log of Trench T 84 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 I I I I I I I PROJECT NO 06403-12-01 0:: TRENCH T85 >-w Zw'" >-..... (!) l-Ou • 1-", w~ ° <t: DEPTH -1 :J: SOIL HZI-H. 0::'" SAMPLE 0-0 1-<t:L.L. OOL.L. :::ll-IN NO. :r: Z CLASS ELEV. (MSL.) 175 DATE COMPLETED 11/15199 <t: I-" z. I-z I-:::l 0::00 00 Wu OOUJ FEET H ° (USCS) I-H:J: O. HI--I 0:: W 000 >-0... Oz EQUIPMENT TRACKHOE JD 555 24" Zw-1 (!) W 0::1C 0::'"' :E:o 0... '"' 0 CJ MATERIAL DESCRIPTION r 0 ~ r -COLLUVIUM I- Stiff, moist, dark olive-brown, Sandy CLAY r 2 -I- r -T85-l ~~ CL I- r 4 -l- i---l- I-6 -~ l-.. -Irregular transition inclined southeast . r -. . . .:~: ':~~ ~ ::[:l:~. SANTIAGO FORMATION , I-8 -I- T85-2 'r~"t SM Medium dense, moist, light brown, Silty, very fme I--:~~:~::t: SANDSTONE, with trace clay, massive f- lO . .. -Becomes dense, blockv, more sandy r TRENCH TERMINATED AT 10 FEET - - Figure A-140, Log of Trench T 85 LCG 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 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 PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I Ii TRENCH T86 >-ZLtJ'" >-'" CD 0 °u . 1-"", UJ~ DEPTH ..J SOIL HZI-H. 0::'"" IN SAMPLE 0 CLASS I-<t:u. CJ)u. ::::ll-NO. ::t: ELEV. (MSL.) 143 DATE COMPLETED 11/15199 <1:1-' Z • I-z I-O::CJ)CJ) IJJ U FEET H I~ (USCS) I-H::3: o. CJ)l.IJ HI-..J EQUIPMENT TRACKHOE JD 555 24" UJcno >-0.. Oz zw..J ~a::e 0::'"" E:o 0 u MATERIAL DESCRIPTION I-0 B!;: I--COLLUVIUM f-~ Stiff, damp, dark gray-brown, Sandy CLAY, I-2 -massive, porous, with rootlets and root-voids and l- I--burrows l-V> CL I-4 -~ l- I--l- I-6 -~ l- I--l- i: I-8 -l- I--r;:; TERRACE DEPOSIT (?) '- I-10 -T86-1 ~ SC-CL Stiff, very moist, reddish-brown, very Clayey, fine "- SAND, massive, with scattered fine gravel 104.7 20.6 I--T86-2 - ·T Ilil near-horizontal contact I-12 -I f--SANTIAGO FORMATION -Very stiff, very moist, olive-brown, Silty I-14 -Irr _r~ CLAYSTONE, ve..-y weathered, fractured, with -T86-3 I discontinuous clay seams 101.4 23.3 - -T86-4 -Becomes olive-gray f- -16 TRENCH TERMINATED AT 16 FEET Figure A-141, Log of Trench T 86 LCG SAMPLE SYMBOLS o '" 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. I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I- I I I 0::: TRENCH T87 >-lLI Zui"" >-"" (.!) l-Ou • 1-"" LJJ~ 0 <I: DEPTH ..l '3: SOIL HZI-H. 0:::"" SAMPLE 0 CJ I-<I:u. (J)u. ::JI-IN ::J: Z CLASS ELEV. (MSL.) 138-DATE COMPLETED 11/15/99 <I: 1-" Z • I-Z NO. I-::J (USCS) O:::(J)(J) LJJ U (J)UJ FEET H 0 I-H::::r: C. HI-..l 0::: LJJ(J)O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zLJJ..l (.!) -LJJ 0:!C 0:'"' ~o 0-v C u MATERIAL DESCRIPTION ,... 0 ~ --COlLUVIUM I- Stiff, damp, dark gray-brown, Sandy CLAY '-2 -CL -Massive, porous, with rootlets, root-voids and I-~ burrows I-,... - -4 -' '/ -Becomes moist to very moist :1, 1'"1-l~'1 SM TERRACE DEPOSIT , ---Medium dense, damp, light reddish-brown, Silty, -6 -:'1 ~, I' fme SAND, with some clay '- --:1-.1-'1-'- --------------------------------------'//.} , ,... 8 -Medium dense, damp, reddish-brown, Clayey, fme I- ,... ,... {/> SAND to very Sandy CLAY, massive, blocky, with -T87-1 Z:/-/, SC-CL scattered fine gravel and grit, some porosity, with 116.3 15.4 ,... 10 -scattered rootlets and root-voids -T87-2 '//. ,... -v,<~ -'- ,... 12 -1/ - ,... -~/.,t -Scattered small fragments of charcoal -:;/.~ I-14 -(0 - I--t?://. - ,... 16 -/0 -~/.~ ,... TRENCH TERMINATED AT 17 FEET - Figure A-142, Log of Trench T 87 LeG SAMPLE SYMBOLS D ... 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 I I I. I I I PROJbCT NO. 06403-12-01 , TRENCH T88 >-ZUJ" >-" (..!) 0 °u . r-" Ul~ DEPTH .J SOIL H:zr-H. 0:: ...... IN SAMPLE 0 CLASS r-<I:;I.I.. 001.1.. :::Jr-NO. z ELEV. (MSL.) 145 DATE COMPLETED 11/15/99 <1:1-' z. r-z r-O::cnOO UlU FEET ~ (uses) r-H:3: c. (1)LLJ H HI-.J UJcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ.J Ulo::t:'C 0::"" %:0 a.. ...... c u MATERIAL DESCRIPTION -0 ~ , --COLLUVIUM roo 0 Stiff, moist, dark gray-brown, Sandy CLAY -2 --Massive, porous, with rootlets, root-voids and roo --burrows roo -4 -:z ~ 0 CL . --- 6 -% - -~ Y;f , -8 -- --X ~ -10 -TERRACE DEPOSIT -:t ~ r'T _r'T-f Soft to stiff, very moist to wet, light olive-brown, - -X ~ Silty CLAY, with some reddish-brown sand lenses, '- 12 -~ ~ and discontinuous clay seams, almost plastic - /0 V -m CL -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 [] ••• 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 PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I Q:: TRENCH T89 >-I.IJ Zw'"' >-'"' (!) I-°u· 'I-I.IJ~ 0 <I: H'"' DEPTH SAMPLE ...J ::3: SOIL HZI-en • Q::'"' IN 0 t:l CLASS I-<r:LI.. ZLl.. ::JI-NO. Z z ELEV. (MSL.) 123 DATE COMPLETED 11/15/99 <r: I-"-Ul • I-Z FEET I-::J (USCS) Q::(J)cn O~ cnUJ H 0 I-H::3: HI-...J Q:: I.IJ(J)O >-D.. Oz (!) EQUIPMENT TRACKHOE JD 555 24" zw...J Ulo::lD Q::'"' :E:o 0.. '"' Q' (J MATERIAL DESCRIPTION 0 ~ -COLLUVIUM I- Stiff, damp to moist, dark gray-brown, Sandy I-2 -CL CLAY l- I--~ I- 4 -. '/ I~~ -SANTIAGO FORMATION -'-r CL Stiff, very moist, light olive-brown, Sandy 6 -~ CLAYSTONE, very weathered, fractured I- -~ l- i-8 --Becomes hard, moist, olive, Silty CLAYSTONE, I-fractured, blocky, massive I- TRENCH TERMINATED AT 9 FEET , - Figure A-144, Log of Trench T 89 LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) 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 I I I· I I I I I I I I. I I· I I I I PROJECT NO 06403-12-01 0:: TRENCH T90 >-lLI ZLlJ" >-,... f..!) l-Ou • 1-..... lLI~ ° <I: DEPTH -I :I SOIL HZI-H. 0::"" SAMPLE ° 0 CLASS 1-<r::1.l.. (l)1.L. :::ll-IN NO. ::J: Z ELEV. (MSL.) 230 DATE COMPLETED 11/15199 <1:1-' Z. I-z I-:::l (USCS) O::cnCJ) lLIe.,) ~UJ FEET· H ° I-H::t O. -I 0:: lLIcn O >-0-·01- f..!) EQUIPMENT TRACKHOE JD 555 24" zLlJ-I . 0::"" 1:z ~o.:e 0 Cl u MATERIAL DESCRIPTION I-0 15 I--CL TOPSOIL -Stiff, humid, dark gray-brown, Sandy CLAY I-2 -I I--CL SANTIAGO FORMATION -Hard, damp, olive, Silty CLAYSTONE; very I-4 -::f:l::t: ~ fractured and weathered r \ -Near-horizontal bedding -contact I - I--·t .,( ~----------------------------______ I -: .. (. SM Very dense, damp, light olive to brown, Silty, I-6 -':f: :-t coarse SANDSTONE, with trace clay, blocky -: .... ~.: . I--'r -'f -.. -::C:~::~~ : I-8 . .. ... TRENCH TERMINATED AT 8 FEET - Figure A-145, Log of Trench T 90 LCG SAMPLE 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 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 0:: TRENCH T91 >-I.J..I zl.1.l" >-" (.!) I-0 <I: °u . 1-" I.J..I~ DEPTH ...J 3 SOIL HZI-H. 0::"" IN SAMPLE 0 0 CLASS I-<I:u. Cf)u. :::JI-J: z ELEV. (MSL.) 130 DATE COMPLETED 11/15199 <:r:: "-Z. NO. 0::1-Cf) I-Z FEET. I-:::l (USCS) 1-Cf)3 I.J..IU (/)UJ" H 0 I.J..IHO 0. HI-...J 0:: EQUIPMENT TRACKHOE JD 555 24" z(/)...J >-0.. Oz (.!) 1.J..I1.1.I!C 0::"'" :£:0 0..0::"", 0 U MATERIAL DESCRIPTION I-0 ~ I--COLLUVIUM -Very stiff, damp to moist, dark gray-brown, Sandy I-2 -CLAY, porous, with rootlets, root-voids, burrows l- I--~ CL l- I-4 -I-% I--» CL ,.. 6 -TERRACE DEPOSIT l-Very stiff to hard, moist, reddish-brown, very i-Sandy CLAY, massive, blocky, with some porosity, , with rootlets, root-voids TRENCH TERMINATED AT 7 FEET - Figure A-146, Log of Trench T 91 I LCG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE S~PLE (UNO ISTURBED) ~ ••• 0 I STURBED 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 PROJECT NO. 06403-12-01 I I I I I I I I· I I I I I I I I I 0::: TRENCH T92 >-UJ ZIJJ-:"' >-"-(.!) I-0 <I: °u . 1-" IJ.IN DEPTH -oJ :3: SOIL HZI-H. 0::'"' IN SAMPLE 0 ° CLASS I-<tu. cnu. ::ll-NO. Z Z ELEV. (MSL.) 225 DATE COMPLETED 11/15/99 <1:1-' Z. I-z I-::l O:::cn cn UJ u FEET" H 0 (USCS) i-H :3: o. cnUJ HI--oJ 0::: UJcnO 'Q. Oz (.!) EQUIPMENT TRACKHOE JD 555 24" zlJJ-oJ ~'-' ~o:::e 1:0 0 u MATERIAL DESCRIPTION -0 ~ - -CL TOPSOlL t-Stiff, humid, dark gray-brown, Sandy CLAY t-2 -.. / t- , f'~'T I--.: :f:· SANTIAGO FORMATION I-'t "f ' , . Dense, damp, light tan, Silty, fme to medium I-4 -.: : ~:.1' I-'f T SANDSTONE, massive,_blocky ,; :~:' --:*~::f: t- 6 -'r't -Near-horizontal bedding l-· , , SM fl •• ~." -:;t:~::f; r 'r t : I-8 -· , . ... ... to .~ •• " 't "f I--' , . r · . , ::~;~::f: r-IO • "'1'" TRENCH TERMINATED AT 10 FEET - Figure A-147, Log of Trench T 92 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. ! I I PROJECTNO 06403-12-01 I' I I I I I I I I I I I· I I DEPTH SAMPLE IN NO. FEET a:: >-UJ CD f-a <t: SOIL ...J ::3: a Cl CLASS :J: Z f-:::l (USCS) H a ...J a:: CD ELEV. (MSL.) _1=9.,;;..5 __ EQUIPMENT TRENCH T93 ZLLJ""' >-'"' °u . 1-" UJ~ Hzl-H. 0::'"' I-<t:u. CJlu. i=?f-DATE COMPLETED 11/15/99 <1:1-' Z. O::CJlC/) lJ.Iu 'C/)z 1-1-1::3: o. H UJ UlCJlO >-0.. of-TRACKHOE JD 555 24" zLLJ...J ;CZ ~o::e 0::'-' 0 0 u MATERIAL DESCRIPTION TOPSOIL -CL Stiff, humid to damp, dark brown, Sandy CLAY t-2 -I- I-- I-4 -~ CL SANTIAGO FORMATION I- ~'H.'.t-+----+ ~ Firm to hard, damp, olive, very Silty, r i----i----I----I ::f:rt: \ CLAYSTONE f I-- t-6 -::f:1::f: SM '-__ -y~rx !r~c!U!eE!.. 'Yi~ _c~'?il!lI! ~u1J~~ ]!D!D~~ ________ / t- ::f:~::t. Dense, damp, light.brown to olive, Silty, medium SANDSTONE, with some clay, massive, blocky /r+---t---+---I TRENCH TERMINATED AT 7 FEET Figure A-148, Log of Trench T 93 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 PROJECTNO 06403-12-01 I I I I' I I I I I I I I' I I I I I 0:: TRENCH T94 :>-UJ ZIJ.J"" :>-' "" t!) l-Ou • 1-"" UJ~ ° <I: DEPTH ...l :::I SOIL Hzl-H. 0::"'" SAMPLE ° 0 CLASS I-<l:u.. (l)u.. :::ll-IN :::J: z ELEV. (MSL.) 175 DATE COMPLETED 11/15199 <1:1-' z. I-Z NO. I-:::l (USCS) 0::(1)(1) UJu (l)UJ FEET H 0 I-H:::I o . HI-...l 0:: UJ(I)O :>-a. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l t!) ~o::e .0::"'" :E:o 0 u MATERIAL DESCRIPTION -0 r0. -' -ALLUVIUM r Stiff, moist, dark brown, Sandy CLAY -2 --Porous, with rootlets, root-voids and burrows r- --~ CL r- -4 -r- ,... -~ -,... ,.-6 --: :/ ,... -:1.1l r 8 -l~ '\ TERRACE DEPOSIT -Medium dense, damp, light yellow-brown to ,... -:', t·!' orange, , Silty, fme SAND, some porosity, -SM root-voids r-IO -:1· l - i--l~ 1 '- .. ~ ~'I' ,... 12 ---------------------------------------0: CL i--Medium dense, moist, reddish-brown, very Sandy .... CLAY, massive r 14 TRENCH TERMINATED AT 14 FEET - , Figure A-149, Log of Trench T 94 LeG SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL IJ 0" STANDARD PENETRATION TEST • 0.0 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 I I I I I. I I I I I I I I PROJECT NO 06403-12-01 0:: TRENCH T95 >-LLI ZLLl'" >-(!) I-'" 0 <I: o (.J • 1-"" I..LI~ DEPTH ...l :3: SOIL HZI-H. 0::'"" IN SAMPLE 0 CI CLASS 1-<t:LI.. ~IJ.. :;:)1- NO. ::x::: Z ELEV. (MSL.) 193 DATE COMPLETED 11/15/99 <I: I-"-LLI· ~Z FEET I-:;:) (USCS) O::cn(J) Clc.: H 0 I-H:3: HLLI ...l 0:: EQUIPMENT, TRACKHOE JD 555 2411 • 1..LI(J)0 >-0.. 01- (!) ZLLl...l 0::'"" E Z \:eo::e 0 CI u MATERIAL DESCRIPTION -0 0. --ALLUVIUM - Soft to stiff, very moist, dark brown, Sandy -2 -~ CLAY, massive, porous, with root-voids, rootlets - --- I-4 -I- -I--~ l- I-6 -f-CL ... -f-~ : I-8 -l- I--l- I-10 -~ l- I--l- I""" 12 -"./ -Very irregular, sharp contact Ij CL-CH SANTIAGO FORMATION I--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-150, Log of Trench T 95 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 PROJECTNO 06403-12-01 I I I I I' I I I I I I· I I I 0:: TRENCH T96 >-UJ ZIJJ'" >-,.., (!) l-Ou • 1-,.., IJJN 0 <I: DEPTH -J ::::t SOIL HZI-H • 0::'"' IN SAMPLE 0 c· CLASS ~<I:~. CIlu. ::JI-NO. :J: Z ELEV. (MSL.) 200 DATE COMPLETED 11/15/99 o::l-CIl z. I-z I-::J I-CIl::::t Wu CIlUJ FEET H 0 (USCS) UJHO C. HI--J 0:: -ZCll-J >-Il-Oz (!) .EQUIPMENT TRACKHOE JD 555 24" UJlJJal 0::"'" :£:0 Il-O:: ..... C u MATERIAL DESCRIPTION -0 ~ --ALLUVIUM I-Soft to stiff, very moist, dark brown, very Sandy -2 -CLAY I- --~ I- ,.. 4 -I- --~ I-- CL -6 -I- -I- -8 -f1 r -r -10 -~ ::f:rto SM --t .of SANTIAGO FORMATION I-:. :~:: .. Dense, damp, light olive-gray, very Silty, fme .. "". " .... 12 " SANDSTONE, with some clay TRENCH TERMINATED AT 12 FEET -. Figure A-1Sl, Log of Trench T 96 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 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 I I I· I I I I I I I I I 0::: TRENCH T97 >-LLI ZLIJ"" >-" t!) l-Ou • 1-"" LLI~ 0 <t: DEPTH -1 :::c SOIL HZI-H. 0:::'"' IN SAMPLE 0 Cl CLASS ~<I:'t (J)u. :::ll-NO. Z Z ELEV. (MSL.) 210 DATE COMPLETED 11/15/99 0:::1-(J) z. I-Z FEET I-:::l (USCS) I-CI):::c LLlU (J)UJ H 0 LLlHO Cl. HI--1 0::: EQUIPMENT TRACKHOE JD 555 24" zCI)-1 >-0. Oz t!) LLlLLljO 0::: .... ~o 0.0::"", Cl U MATERIAL DESCRIPTION I-0 V/ CL I--TOPSOll. ~~ Stiff, humid, dark brown, Sandy CLAY I-2 -SANTIAGO FORMATION l- I--~ Hard, damp, olive-gray, very Silty CLAYSTONE, I- massive to horizontal beds, very fractured and . r-4 -CL weathered l- I---l- i-6 -r:-. i---Becomes very hard, moist, less fractured and I- : I-8 weathered TRENCH TERMINATED AT 8 FEET - Figure A-152, Log of Trench T 97 LeG 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 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 06403-12-01 0:: TRENCH T98 :>-LIJ ZUl ..... >.-..... (!) l-Ou • 1-..... UJ~ ° <I: DEPTH ....J :::It SOIL HZI-H. 0:: ...... IN SAMPLE ° Cl CLASS I-<t:u. CJ)u. :;:)1- NO. ::t: z ELEV. (MSL.) 210 DATE COMPLETED 11/15/99 <1:1-' z. I-z I-::l (USCS) l=en~ LlJe.,) CJ)LIJ FEET H ° LlJH O C. HI-....J 0:: EQUIPMENT TRACKHOE JD 555 24" zen....J >-0.. Oz (!) LlJUl CC 0:: ...... :E:o 0..0:: ...... C U MATERIAL DESCRIPTION :-0 X. ,... -COLLUVIUM -Soft to stiff, very moist, dark brown, Sandy CLAY i-2 --Porous, with rootlets, root-voids and burrows - i--~ CL - i-4 -- '--0 - i-6 --Irregular transitional contact, with fragments of ::f:rt• Santiago formation i---t -r SANTIAGO FORMATION -:. -( -SM -r"r Dense, damp, light brown to olive, Silty, fine i-8 --. --:. ~~.: . SANDSTONE, massive, blocky, with trace clay i---r --f -Near-horizontal bedding ---. . ~ .. ·:C: ::~: i-10 . .. TRENCH TERMINATED AT 10 FEET Figure A-153, Log of Trench T 98 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 I I I I' I I I -·1 I 1 I· I I I PROJECT NO 06403-12-01 0;: TRENCH T99 >-lIJ ZI.J.I" >-r.. t!) ..... O·u· ..... " UJ~ 0 <I: DEPTH ..J :3: SOIL HZ ..... · H. 0;:"" SAMPLE 0 ° CLASS ..... <t1..L. o(/)u;, ::l ..... IN :J: z ELEV. (MSL.) 175 DATE COMPLETED 11/15199 <1: .... " z. ..... Z NO. ..... :::l O;:CI)(/) lIJU tnLlJ FEET H 0 (Uses) .....H:3: o. HI-..J 0;: lIJcnO >-a.. Oz t!) EQUIPMENT TRACKHOE JD 555 24" zl.J.l..J 0;:"" E:o UJo::t:C a.. "" 0 u MATERIAL DESCRIPTION I-0 % I--COLLUVIUM I- CL Stiff to soft, moist, dark gray-brown, Sandy CLAY I-2 --Massive, porous, with rootlets, root-voids and I-~ burrows l-I-- I-4 -l-.. -Irregular contact inclined SW . -I--. . . :~: .:~: I-6 -t~::t" SANTIAGO FORMATION I-::t*:t· SM Very dense, damp, light tan to orange, Silty, fine I--.. ·f· SANDSTONE, massive to near-horizontal beds I-.;~~ ::t; I-8 . .. TRENCH TERMINATED AT 8 FEET - Figure A-154, Log of Trench T 99 LCG SAMPLE SYMBOLS [] ••• 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 PROJECTNO 06403-12-01 I I I I I I I I I~ I I '1 I I I I I 0:: TRENCH TIOO )0-w zUJ ...... >-r.. CD l-Ou • . 1-...... UJ~ 0 <I: DEPTH ...J ::t SOIL HZI-H. 0::"" SAMPLE 0 0 1-(tiJ. CJ)iJ. :;:)1-IN NO. ::t: Z CLASS ELEV. (MSL.) 175 DATE COMPLETED 11/15/99 <1:1-' ~~. I-z I-::J O::CI)CJ) CJ)1JJ F!;ET H 0 (USCS) I-H::t HI-...J 0:: UJCI)O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...J CD UJo::tD 0::'"' ~o. 0-'"' 0 u MATERIAL DESCRIPTION -0 ~ r' -COll.UVlUM -Soft to stiff, moist, dark brown, Sandy CLAY -2 --Porous, with rootlets, root-voids - I--~ - '-4 -CL - -I--0 - -6 -- '--& -, i-8 -V/} SC TERRACE DEPOSIT i---f/> Medium dense, moist, reddish-brown, Clayey, fine I-10 -yO/./ to medium SAND, with some silt, grit - ~ --------------------------------------r -CL Very stiff to hard, very moist, olive-brown, very - I-12 . :.--Sandy CLAY TRENCH TERMINATED AT 12 FEET - Figure A':155, Log of Trench TIOO LCG 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 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 . 06403-12-01 0:: TRENCH TIOI >-UJ ZLLI'" >-'" (!) l-Ou • 1-", UJ~ 0 <I: DEPTH -I :3: SOIL HZI-H. 0::'-" SAMPLE ° C CLASS I-<J:IJ.. CIlIJ.. :::li-IN ::I: Z ELEV. (MSL.) 197 DATE COMPLETED 11/15/99 <I:f-' Z. I-Z NO. I-:::l O::en Cll UJu CIlIJJ FEET H ° (USCS) I-H:I C • Hi--I 0:: UJenO >-0.. Oz (!) EQUIPMENT TRACKHOE JD 555 24" ffiLLli6 0:: .... :E:o o..,O::! '-" c u MATERIAL DESCRIPTION I-0 V 7-CL I--TOPSOIL Stiff, humid, darkgray-hrown, Sandy CLAY I-2 -SANTIAGO FORMATION l- I--Hard, damp, light olive, very Clayey SILTSTONE I- I-4 -vIL-MH -Very weathered and fractured, with some sandstone lenses '- -'- -6 -f- --Becomes very hard, dry, light olive, cemented, , Silty SANDSTONE -Concretion layer TRENCH TERMINATED AT 7 FEET REFUSAL - Figure A-156, Log of Trench TIOI LCG 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 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 I I I I I I I I I I I I I I I I 0:: TRENCH TI02 >-UJ zUJ ...... >-,.., t!) l-Ou • 1-...... UJ~ 0 <I: DEPTH ...l :3: SOIL HZI-H. 0::'"' SAMPLE 0 0 1-<I:Ll.. (/)u. ::::ll-IN :J: z CLASS ELEV. (MSL.) 210 DATE COMPLETED 11/15199 <1:1-' z • in Z NO. I-::J (USCS) O::cn(/) UJ u FEET H 0 I-H:3: o • H UJ . ...l 0:: UJCI)O >-0.. 01- t!) EQUIPMENT TRACKHOE JD 555 24" zUJ...l 0:::'""' l:z ~o::e 0 0 u MATERIAL DESCRIPTION '-0 ~ .... -COLLUVIUM I- Soft to stiff, moist, dark brown, Sandy CLAY '-2 --Porous, with rootlets, root-voids I- --~ CL l- I-4 -I- -I--~ -Becomes very stiff, less porous l- I-6 -::/ l- i--::~:~::t· SM i-8 .. . .. SANTIAGO FORMATION Very dense, dry, light orange-brown, cemented, Silty, coarse SANDSTONE, concretion layer TRENCH TERMINATED AT 8 FEET REFUSAL - - - Figure A-IS7, Log of Trench TI02 l.CG 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 PROJECT NO. 011401.12-01 I I I I I I I I I I I I I I I I I DEPTH IN FEET :-0 - 2 - - - - - 4 - - - 6 - - - SAMPLE . NO. !rl03-1 ~ 'f 5 I~ ~: I~~~~: SOIL CLASS (Uses) SC SM TRENCH TI03 ELEV. (MSL.) ---:2=5.::,.O __ DATE COMPLETED EQUIPMENT TRACKHOE JD 555 24" MATERIAL DESCRIPTION TOPSOn. Soft, damp, dark brown, very Clayey, fine SAND SANTIAGO FORMATION Dense, damp, light reddish-brown to brown, Silty, fine SANDSTONE, massive, blocky 11/16/99· - - I- I- I- - 8 - I:~~" ,r; , 17lb'~+-1-----+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --/-----/---+---1 ~~~ m~ --11'103-2 10 - - -12 - I- r.L-MT Hard, damp to moist, olive-brown, Silty CLAYSTONE, with abundant gypsum (calcium sulfate) in alternating layers -Horizontal, laminated beds TRENCH TERMINATED AT 13 FEET Figure A-15S, Log of Trench TI03 I- 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. I I PROJECTNO 06403-12-01 I I I I I I I I I I I I I I I I I 0:: TRENCH TI04 >-UJ Zw'"' .>-'"' t!) l-Ou • 1-,", UJ~ 0 <I: DEPTH ...I :3: 5011. HZI-H. 0:::'"" SAMPI.E 0 0 CLASS I-<tU-C/)u.. ::JI-IN :::J: z ELEV. (MSL.) 320 DATE COMPLETED 11/16/99 <I: 1-' z • I-Z NO. I-::J o::C/)cn UJu C/)UJ FEET H 0 (USCS) . I-H:3: 0. HI"-...I 0:: UJenO )-0-Oz EQUIPMENT TRACKHOE JD 5552411 Zw...l t!) ~o::e 0:::"'" ~o 0 u MATERIAL DESCRIPTION -0 :1.}l SM COLLUVIUM --"' . 2 0. ' ___ I:.oE~t."d.!'t, ligh.} EI"E~l!' _G.!'a'y~llx to ~l!y_S.:,\.~P _______ .' - -Stiff, moist, olive, Sandy CLAY -CL -I- -4 -.:/ ::~:~::t: --°t .. ~ SANTIAGO FORMATION I-:.o( SM Very dense, damp, light brown-orange, Silty, fme -6 -.:~: :·t SANDSTONE, with some clay l-. r 0 • 0 0 :.~. ·:r: -Horizonta11aminated bedding TRENCH TERMINATED AT 7 FEET , - Figure A-159, Log of Trench TI04 LCG SAMPLE SYMBOLS [J ••• SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST II ... 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 I 1 I I 1 I I I I 1 I. I I I I I I PROJECT NO 06403-12-01 0:: TRENCH TIOS >-UJ ZUJ'" >-" (!) l-Ou • 1-", UJ~ 0 <J: DEPTH -l :3: SOIL HZI-H • 0::"" IN SAMPLE 0 0 CLASS I-<J:LI. CIlLI. ::li-NO. :c Z ELEV. (MSL.) 302 DATE COMPLETED 11/16/99 <J:I-' z. I-z I-::l (USCS) O::(f)CIl UJu CIlUJ FEET H 0 I-H:I o • Hi--l 0:: UJ(f)O >-c.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ-l (!) ~o::e 0::"" 1:0 0 u MATERIAL DESCRIPTION c-O ]-1-"1- --"1"-1-1 COLLUVIUM - :'1 rt-SM Loose, humid, light reddish-brown, Silty, fme -2 -SAND, with some clay and pebble-gravel - --:1, /1--Porous, with root-voids, bUrrows - -4 -"~'~"t' -. .. 'T SANTIAGO FORMATION :tt· .:( ... Very dense, damp, light tan, Silty, fine --• ~ to • SM --':f: :'t' SANDSTONE ' .. ~., """ 6 -;'t to .:( -Horizontally bedded i- .: :1:', -, , TRENCH TERMINATED AT 7 FEET - Figure A-160, Log of Trench TI0S LCG SAMPLE-SYMBOLS o ... SAMPLING 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. I I PROJECT NO. 06403-12-01 I I I I I I I I I I I I I I I I I 0:: TRENCH TI06 >-w zw ..... >-..... CD .... °u . .... ..... UJ~ 0 <I: DEPTH -I ::3: SOIL HZ .... H. 0::"" IN SAMPLE 0 C CLASS .... <t:LI.. (/)IJ.. :::l .... NO. ::t: Z ELEV. (MSL.) 310 DATE COMPLETED 11/16/99 <I:J-' z .• .... z .... :::l o::oo(/) UJu OOw FEET H 0 (USCS) .... H::3: C. H .... -I 0::: WOOO >-e:: Oz CD EQUIPMENT TRACKHOE JD 555 24" Zw-l ~~e 0::. :1::0 C u MATERIAL DESCRIPTION I-0 :9.}l SM I--"' COLLUVIUM ~ ~ CL \~ __ I:.oE~e!..~,.!i~~ !>rE~_G.Ea'y~l~!..~il!y_S~~p ___ . ____ ,' I-2 -Stiff, moist, olive, Sandy CLAY - I--"f'~'r . .. I-4 -Tl06-1 ~ ;:f:l::f: SANTIAGO FORMATION -SM Very dense, damp, light tan, Silty, fme -::f:~::t I--SANDSTONE - I-6 -:rkf· -Upper 12" moderately cemented l-... ::C:~::~: l-. . .. - TRENCH TERMINATED AT 7 FEET - Figure A-161, Log of Trench TI06 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 PROJECTNO 06403-12-01 I I I I 1 I' I I I I I I I I, 1 I I ~ TRENCH TI07 >-UJ ZLL/""' >-""' t!) I-o t.J • 1-...... UJ~ 0 <t: DEPTH ...! ::3: SOIL HZI-H • ~v SAMPLE 0 0 I-<J:I.J.. (J)I.J.. ::;)1-IN :::t: Z CLASS ELEV. (MSL.) 301 DATE COMPLETED 11/16/99 <t:1-' z. I-Z NO. I-::;) ~cn(J) UJu (J)I.U FEET H 0 (USCS) I-H::3: C. HI-...! ~ UJcnO >-0.. Oz EQUIPMENT TRACKHOE JD 555 2411 zLIJ"'! t!) UJo::a:l 0:: ..... ';:0 0.. '-" C u MATERIAL DESCRIPTION I-0 V/y; I--V:.j COLLUVIUM I-{// Loose, humid, medium dark brown, Clayey, fme I-2 -l?/~ SC SAND, with some silt, scattered gravel l- I--;// h I-4 -V:;~ ::f:rt, I--t "f SANTIAGO FORMATION -I-: .. ( : Very dense, damp, light tan to gray, Silty, fine I-6 -':f: :'f SM SANDSTONE I-: ... ~.: r' f I--. . , l-.. , ::t: 1::~ ~ 8 . .. TRENCH TERMINATED AT 8 FEET . - Figure A-162, Log of Trench TI07 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 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 I I I 0:: TRENCH TI08 >-W ZUJ"'" >-"'" t!) I-0 <r: °u . 1-"", W~ DEPTH ...l :3: SOIL HZI-H. e:::'" IN SAMPLE 0 c CLASS I-<tLl. Cl)u. :::ll-NO. ::c Z ELEV. (MSL.) 320 DATE COMPLETED 11/16/99 <r: I-"-Z. I-z I-:::l O::(j')CI) we.,) FEET H 0 (USCS) I-H:3: c. C/)w HI-...l 0:: WCJ)O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zLIJ...l t!) ~ e:::!9 0::'"" :E:o C (J MATERIAL DESCRIPTION f-0 ~' rJ~0 SC TOPSOIL f--.// ~ 1~1.il. Loose, dry, dark brown, Clayey, Gravelly SAND, ~ 2 -!rl08-1 ~M-GM with some silt -- ~ -LINDA VISTA FORMATION -!rlO8-2 Very dense, damp, reddish-brown, very Gravelly, -4 -~~ .. ~ .... : ~""::: medium SANDSTONE - '--: :-:. '·4::':---Irregular, near!yhorizontal contact ::~: ~::t: i-6 -........... SANTIAGO FORMATION -:.t.(f. Dense, damp, light tan, Silty, fme SANDSTONE ·r ·t SM ,... -.: :~: .. - 't ·r I -8 -. . . l-... ::C:~::~: .. . . ... TRENCH TERMINATED AT 9 FEET - , Figure A-163, Log· of Trench TI08 LCG SAMPLE SYMBOLS [J .•. SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) IiJ . .. 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. I I· I I I I I I' I I I I I. I I I I I I PROJECT NO 06403-12-01 e::: TRENCH TI09 >-W ZIJ.I~ >-" t!) l-Ou • I-~ w~ 0 <I: DEPTH ...l 3: SOIL H:zl-H. 0:::'"' IN SAMPLE 0 ° CLASS I-<I:IJ.. (J)IJ.. :;:)1- NO. ::t: Z ELEV. (MSL.) . 285 DATE COMPLETED 11/16/99 <1:1-' z. I-Z I-:;:) rt:(J)(J) Wu FEET (USCS) I-H3: o. (J)UJ H 0 HI-...l 0::: UJ(J)O >-0-Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l t!) ~o:::e3 0::: ..... 1:0 0 t..) MATERIAL DESCRIPTION 0 :9··'l I--fto, COllUVIUM r Loose, dry to humid, medium light brown, 2 --tp Gravelly, Silty, fine SAND, with clay, porous, with I--: t-SM numerous root-voids, burrows r--.i-r"l· I-- I-4 -l"1 l-. {·f f--~ ~'i l- I-6 -:~~. a._ I-. ~~ I--=*l· " I-r' . . '-Irregular contact inclined northwest I-8 -" .... il9• ::f:~::t· SM I--::~~kc SANTIAGO FORMATION f- Dense, damp, light tan to gray, Silty, fme SANDSTONE TRENCH TERMINATED AT 9.5 FEET , Figure A-164, Log of Trench TI09 SAMPLE SYMBOLS o ... SAMPLING UNSUCCESSFUL ~ ••• DISTURBED OR BAG SAMPLE IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) iJ ... CHUNK SAMPLE It: ... 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 0:: TRENCH Tll0 >-IJJ Z ,... >-" t!) I-oUJ • 1-"" w~ 0 <I: HUI-DEPTH -I ~ SOIL 1-2:lJ.. H. 0::'"" SAMPLE 0 Cl CLASS <I:<I:", (l)lJ.. :::ll-IN NO. ::t: z ELEV. (MSL.) 320 DATE COMPLETED 11/16/99 0::1-(1) z. I-z IJJU FEET I-:::l (USCS) I-CJ)~ O. (l)LI.I H 0 WHO HI-..J 0:: EQUIPMENT TRACKHOE JD 555 24" zCJ)-I >-0.. Oz t!) wUJec 0::'" :1::0 0..0:: ..... 0 U MATERIAL DESCRIPTION f-0 :~.·Il f--'j'~] SM-GM TOPSOIL I- ':0~~ Loose. dry, reddish-brown. Gravelly, Silty SAND f-2 -LINDA VISTA FORMATION t-)": l3>. f--~:~:' ~ SM-GM Very dense. damp. reddish-brown. conglomeratic t- ·.o-9.~ SANDSTONE, massive, with some clay and f-4 -cemented lenses l- f--}). :0. -Irregular deposition contact nearly horizontal -::f:rt: SANTIAGO FORMATION f-6 -'t 'r I-; .. ( : SM Dense. damp, light taI.1, Silty, fme SANDSTONE 'r "t f--... -Massive to horizontally bedded f-" ...... " ·i" f-8 :·r· ·:r; TRENCH TERMINATED AT 8 FEET - Figure A-165, Log of Trench Tll0 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. I I PROJECT NO 06403-12-01 I I I I I I I I- I I I I I I I I I 0:: TRENCH Tlll >-L1J ZIJ.I"" ;>0 " (.!) I-°u • 1-"" U/~ 0 <I: DEPTH ...l ::3: SOIL HZI-H. 0::"" IN SAMPLE 0 ° CLASS I-<I:u. (J)u. :::JI-NO. Z z ELEV. (MSL.) 315 DATE COMPLETED 11/16/99 <I: t-" z. I-z I-:::J 0:: (J) CI) . UJu Cl)l.U FEET H 0 (USCS) I-H::3: O. HI-...l 0:: UJ(J)O ;>00-Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l (.!) ~o::e 0::'-' 1:0 t:l u MATERIAL DESCRIPTION I-0 :1.~l SM I--TOPSOIL ~X?) SC Loose, dry, light brown, Silty, Gravelly SAND I-2 -~~ SANTIAGO FORMATION I- ~: r -;I.:" :--: ~ Medium dense, damp, reddish-brown, Clayey, fme ::t:~::t· r \ SANDSTONE I I-4 -:rI.:( \ -Very weathered I r-... ~----------------------------------, . ~ .... I--·:f: :·8 Very dense, damp, light tan, Silty, fme I-::t*:~ SM SANDSTONE I-6 -.' 'f' I- ::f: ::f" -3" olive CLAYSTONE layer, horizontal l-I--::t+:~: 8 ' , . , I- TRENCH TERMINATED AT 8 FEET - Figure A-l66, Log of Trench Tlll LC~ SAMPLE· SYMBOLS o ... SAMPLING UNSUCCESSFUL [] ••• 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 PROJECTNO 06403-12-01 I I 1 I I I, I I I I I I I I I I 0:: TRENCH Tl12 >-LLJ zUJ ..... >-..... t!) l-ou' 1-"" LLJ~ 0 (J: DEPTH ...l ::3: SOIL I-IZI-1-1 • 0:::'-" SAMPLE 0 Cl I-(J:u.. Cl)u.. ~I-IN :::c z CLASS ELEV. (MSL.) 319 DATE COMPLETED 11116/99 (J:I-' z • I-Z NO. I-~ 0:: CI) (t) LLJ U ~UJ FEET 1-1 0 (USCS) 1-1-1::3: C. ...l 0::: LLJCI)O >-0... 01-, t!) EQUIPMENT TRACKHOE JD 555 24" zLLJ...l 0::'"" :E:z g:0:::!9 0 c u MATERIAL DESCRIPTION r 0 .,.,. ,. .EI.·,.,. ,," r -:::?-:: LINDA VISTA FORMATION I--,. ,. .. ,. GP Dense, damp, reddish-brown, very Gravelly :.~:.:. I-2 -...•... ~ SANDSTONE, with some clay, scattered, oversize :-.. ,. .... "fJ" ,,'" ,,".' (> 12" diameter) boulders r -,. ,. ,. ,. ,. l-t "#.,. ,. -Irregular, near-horizontal contact ... ",. ,,". I-4 -J1l SANTIAGO FORMATION -l~ "I I--Dense, damp, light tan-brown, Silty, fine SAND I-:1 {·I" SM r 6 -" ·r" :-:1· l I-- :1".1 "' - , r 8 TRENCH TERMINATED AT 8 FEET .; - , Figure A-167, Log of Trench Tl12 LCG SAMPLE SYMBOLS o ... 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 OTHE~ LOCATIONS AND TIMES. I I I I- I I 1 I I I 1 I. I I I I 1 I I PROJECT NO 06403-12-01 0::: TRENCH Tl13 >-UJ zUJ ...... >-" (!) t-°u • 1-...... UJ~ 0 <r: DEPTH ...l :3: SOIL HZI-H • 0:::""' SAMPLE 0 c 1-<r:1..I.. 001..1.. ::ll-IN :::c z CLASS ELEV. (MSL.) 285 DATE COMPLETED 11/16/99 <r:t-'" z. I-Z NO. t-::l O:::cnOO UJ u (J)IJJ FEET H 0 (USCS) I-H:3: C. Ht-...l 0::: UJ(J)O _>-ll.. Oz EQUIPMENT TRACKHOE JD 555 24" zUJ...l (!) UJo:::co 0::: ..... &0 ll.. ..... 0 u MATERIAL DESCRIPTION ~ 0 ~9. 1-"\- '--l~l SM TOPSOIL - . or "' Loose, dry, light brown, Silty, Gravelly SAND '-2 -70' :~ "--Porous / r--~;/.:if:~ SANTIAGO FORMATION -~ .. *1 Medium dense, damp, reddish-brown, very Clayey, '-4 -fine SANDSTONE, massive -f{~{ SC '--. - r-6 -i.'~~ -1'~ -Becomes very dense '-., .:t. TRENCH TERMINATED AT 7 FEET . - Figure A-168, Log of Trench T113 LCG SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) ~ ••• DISTURBED OR BAG SAMPLE Iii;;] ••• 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 I I 06403-12-01 VILLAGES OF LA COSTA., THE GREENS o al g o t!lE 5 10 15 20 J: 25 b: ill Cl 30 35 40 l- I- I- 45 l-I- I- Marginal to Non- AIR TRACk BORING AT-1 Rippable RippabJe Non-RippabJe 11130/99 ELEVATION 360 FEET MSL o GEDeON tNOO:K.l'ORA'tllD 50 I-~---+----~----+---~~---+----~----+---~-----r----~--~ I 20 40 50 60 70 80 o 10 I 30 90 100 110 DRILL RATE (seconds per foot) 06403-12-01 LA oos~ GREENS FIG. A-169 I I I I I I I I I I I I I I I I I I I 06403-12-01 VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-2 Rippable Rippable Non-Rippable o ~ 5 10 15 20 I Z" Q) ~ -:c 25 l-e.. w Cl 30 35 l- I- 40 l- I- l- I- l-45 I- I- l- 50 I- a 10 I 20 40 50 I 30 60 70 DRILL RATE (seconds per foot) 06403-12-01 LA COSTA GREENS 80 90 11130/99 ELEVATION 335 FEET MSL o GEDeON !lfQOJ\POJl.A'ran r 100 110 FIG. A-170 I I I I I I I I I I I I I I I I I I I 06403-12-01 :as JB - o 5 10 15 20 :c 25 1-. c.. W o 30 35 40 45 50 t!EiIiiI - - ----- -- !" - • - !" o VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-3 Rippable Rippable Non-Rippable - I I - I :1 10 I 20 40 50 60 I 30 70 80 DRILL RATE (seconds per foot) 06403-12-01 LA COSTA GREENS 90 11129/99 ELEVATION 225 FEET MSL o GEOCON lKOO!\J'O&A'r'&tII 100 110 FIG. A-171 I I I I I I· I I I I I I I I I I I I I 06403-12-01 VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORINGAT-4 Rippable Rippable Non-Rippable o 5 10 15 20 ::c 25 b: w c 30 35 40 45 50 ~ I I I l- I- l- I- l- I- l- I- l- i"' l- i- I- o 10 06403-12-01 LA COSTA GREENS I I I I I 20 60 I 30 70 40 50 DRILL RATE (seconds per foot) 80 90 11/29/99 ELEVATION 225FEETMSL o GEDeON lHOQJ\!'OKA'l"lID 100 110 FIG. A-172 I I I I I I I I I I I I I I I I I I I 06403-12-01 o =-• 5 10 15 20 ~ Q) ~ -::r: 25 l-e... ill Cl 30 35 l- I- t- l- 40 t- ~ i- i" 45 i- i- l- 50 i- o VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-5 Rippable Rippable Non-Rippable I 10 I 20 50 60 70 , 30 40 DRILL RATE (seconds per foot) - 80 06403-12-01 LA cos~ GREENS - 90 11/29/99 ELEVATION 250FEETMSL GEDeON IKao:aPOKA'l'JlD 100 110 FIG. A-173 I I I I I I I I I' I I I I I I I I I I 06403-12-01 o ~ 5 10 15 20 :0 (]) ~ .....-:c 25 l-e.. w Cl , 30 l- I- l- I- 35 l- I- l- 40 I- l- I- l- 45 I" l- l- 50 l- o VILLAGES OF LA COSTA -THE GREENS Marginaito Non- AIR. TRACK BORING AT-6 Rippable Rippable Non-Rippable - - - I I I I I I I 10 20 30 40 50 60 70 80 DRILL RATE (seconds per foot) 06403-12-01 ~ cos~ GReENS 90 11/29/99 ELEVATION 350FEETMSL o GEDeON lKOO!\POBA'l'KD I " 100 110 FIG. A-174 . I I I I I I I I I I I I I I I I. I I I 06403-12-01 :ar ~ - 5 10 15 20 :::c 25 b: w o 30 35 40 · 45 -· · · . VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORINGAT-7 Rippable Rippable Non-Rippable 11/29/99 ELEVATION 255 FEET MSL o GEDeON IHaOI\!'O&A'l"JlD 50 ~.------~------+---~~---+----~----4-----+---____ ~--~-------+----~ o 10 I 20 40 50 70 60 80 90 100 110 I 30 DRILL RATE (seconds per foot) 06403-12-01 LA cos~ GREENS FIG. A-175 I I I I I I I I I' I I I I. I I I I I I 06403-12-01 c-O) ~ --- o 5 10 15 20 :c 25 b: w Cl 30 35 40 45 50 ~ ~ ~ ~ " -· · · · · · · · · a VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-8 Rippable Rippable Non-Rippable I . '* - I I I 10 I 20 40 50 60 70 I 30 DRILL RATE (seconds per foot) - 80 06403-42-01 LA COSTA GREENS 90 11/29/99 ELEVATION 240FEETMSL o GEDeON IlfOOKPOKA'l"JlO 100 110 FJ;G. A-176 I I I I. I I I I I I I I I I I I I I I 06403-12-01 :ar ~ - o 5 10 15 20 :r: 25 b: w Cl - 30 35 40 45 50 !'I!BI f- l- I- l- I- l- i" ~ ~ i" i" ~ ~ f- o VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-9 Rippable Rippable Non-Rippable - I I I I 20 40 I 30 50 60 70 10 DRILL RATE (seconds per foot) I 80 06403-12-01 LA cos~ GREENS 90 11/29/99 ELEVATION 230FEETMSL -0 GEDeON IIICOBl'Ol\Al'aO 100 110 FIG. A-177 I I I I I I I I I I· I I I. I I I I I I 06403-12-01 o Em 5 10 15 20 Z' .Q) .IE -:c 25 l-e.. w 0 30 35 40 l- I- l- I- 45 l- l- l- 50 I- a VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT -10 Rippable Rippable Non-Rippable I I I 10 I 20 50 60 70 I 30 40 DRILL RATE (seconds per foot) 80 06403-12-01 LA cos~ GREENS I 90 11/29/99 ELEVATION 220FEETMSL o GEOeON IKOO&2'ORA'r.n 100 110 FIG. A-178 I: I I· I I I· I I I I I I I .. I I I I. I I 06403-12-01 o t 5 III 10 15 20 --Q) ~ ...... ::c 25 l-e.. w C\ 30 35 40 45 --- 50 - a VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT -11 Rippable Rippable Non-Rippable - - I I 20 50 I 30 60 70 40 10 DRILL RATE (seconds per foot) .. 80 06403-12-01 LA COSTA GREENS 90 11/30/99 ELEVATION. 245FEETMSL o GEDeON lKGOl\P01\A'1".n 100 110 FIG. A-179 I I I I I I I I I I I I I I I I I I I 06403-12-01 o ~-~ 5 10 15 20 --Q) ~ ---::c: 25- l-e... w 0 30 l- I-35' l- I- l-40 I- l- I- 45 l- l- l- 50 l- o VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT -12 Rippable Rippable Non-Rippable .. , , . I I I I 10 I 20 I 30 40 70 50 60 80 DRILL RATE (seconds per foot) 06403-12-01 LA COS~ GREENS 90 11/29/99 ELEVATION 265FEET SL o GEDeON lHOOl\POJ\AT.n 100 110 FIG. A-180 I I I I I I I I I I I I I I I I I I I 06403-12-01 VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-13 Rippable Rippable Non-Rippable a ):a 5 , 10 I 15 , 20 e-m ~ -:::c 25 t-a. W 0 30 l- I- 35 l- I- l- I- 40 I- ~ ~ I ~ I 45 I f-I ~ I f-. ~ 50 ~ a 10 I 20 50 60 I 30 70 40 DRILL RATE (seconds per foot) 06403-~2-0~ ~ COSTA GREENS r 80 - 90 11/30/99 ELEVATION 380 FEET MSL o GEDeON tKOOKl'O&Al'an 100 110 FIG. A-181 I I. I I I I' I I I I I I I. I I I I I I 06403-12-01 o 5 10 15 20 ::c 25 l-e.. w Cl 30 35 40 45 l- I- I- VILLAGES OF LA COSTA ~ THE GREENS Marginal to Non- AIR TRACK BORING AT-14 Rippable Rippable Non-Rippable 11/30/99 ELEVATION 385 FEET MSL o GEDeON IHOOJl,POJll,A1"::'Jl 50 I------+------~--------~--~~----_+--------~----+_----~--------~------~----~ I 20 I 30 100 110 90 o 10 70 80 50 60 40 DRILL RATE (seconds per foot) 06403-12-01 LA cos~ GREENS FIG. A~182 I I' I I' I I I I I I I; I I I, I I I I I 06403-12-01 VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT -15 Rippable Rippable Non-Rippable o 5 10 15 20 :c 25 Ei: w Q 30 35 40 45 50 ~ I I I I I-- -- l- I- l- I- l- I- l- l- I- o 10 06403-12-01 LA cos~ GREENS . I 20 I I I .. I I I I I I 30 40 50 60 70 80 90 DRILL RATE (seconds per foot) - 11130/99 ELEVATION 355FEETMSL o GEDeON IK,gOl\POI\A'l"Kn 100 110 FIG. A-183 I I I 'I I I I I I I I- I I- I I I I I I , 06403-12-01 VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT-16 Rippable Rippable Non-Rippable o =- 5 , 10 I " . ~ '. -15 20 -1U JE -. :J: 25 l-e. w 0 , - 30 , 35 , 40 l- I- ~ , I I 45 l-I l-I l- 50 I-I o I 20 50 I 30 80 90 10· 60 70 40 DRILL RATE (seconds per foot) 06403-12-01 LA COSTA GREENS 11/30/99 ELEVATION 375FEETMSL o GEDeON IHOQJ\PQ&A'f.n ~ 100 110 FIG. A-184 I I I· I I I I I, I I I I '1-. '1 I I. I. I I 06403-12-01 o 5 10 15 20 :c 25 Ii: w Cl 30 35 40 45 50 == l- I- I- l- I- l- I- l- I- 1-. l- I- l- I- ~ l- I- o - VILLAGES OF LA COSTA -THE GREENS Marginal to Non- AIR TRACK BORING AT -17 Rippable Rippable Non-Rippable . . I I 20 I 30 50 60 70 10 40 DRILL RATE (seconds per foot) I 80 06403-12-oi LA cos~ GREENS 90 11/30/99 ELEVATION 380 FEET MSL o GEDeON INCOJ\POI\.A.TZD I 100 110 FIG. A-185 -'''-'·~i\t-.: ··:;~i;Yii;· ':~~t}~ I I I' I I I I, I I I I~ I: t I I I' I I I APPENDIX B LABORATORY TESTING Laboratory tests were performed in accordance with the generally accepted test methods of the American 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 Density (pct) 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 Project No. 06403-12-03 -B-1 -June 25, 2001 I I I I I I I; I I I I~ I I I 1- 'I I I I TABLE B-II SUMMARY OF DIRECT SHEAR TEST RESULTS Sample No. Dry Density Moisture Content Unit Cohesion Angle of Shear (pci) (%) (psi) 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 35 LB 1-3 124.8 10.8 1020 43 LB 1-4 112.2 20.2 830 15 LB 1-9 117.7 16.2 200 38 *Samples remolded 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 Expansion No. Before Test (%) After Test (%) Density (pci) 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 I I I 1 'I I' I I I I 'I I I. I I I PROJECT NO. 06403-12-01 GRAVEL COARSE I FINE 3" 1-1/2" 3/4" _3/8" 100 II I I 90 I I I 80 I I l-I ::I: 70 , (.!) I H LLl I 3 60 I >-I !O I 0:: I LLl' 50 z I H I Lt.. I I-40 z I LLl U I 0:: I LLl 30 a.. I I 20 I I I I 10 I I 0 I 10 SAMPLE Depth (ft) • SB3-2 10.0 III SB4-2 10.0 .... SB6-2 10.0 LeG SAND ~OARSEI MEDIUM FINE SILT OR CLAY U. S. STANDARD SmVE SIZE 4 110 It 30 50 20 40 60 1~ 20 ~ ~ "'r--: I I I I I ,..,,,,, "" I I "~ l\ I I ~ I I I I I ' ~ 1\ I I I I I I I . I \ l\~ I I I I I I I I I I C\~ I I I I I I I I I \ I I I I I I I I I I I I I I I I I I I I I I I 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 MILLIMETERS CLASSIFICATION ~ATWC LL PL PI (CL) Yellowish-brown, Sandy CLAY (SM) Dark yellowish-brown, Silty SAND (SM) Dark yellowish-orange, Silty SAND GRADATION CURVE VILLAGES OF LA COSTA -THE GREENS I CARLSBAD, CALIFORNIA Figure B-1 I I· 1 I I I 1 I I I I I I I I I I I I PROJECT NO. 06403-12-01 GRAVEL COARSE I FINE 3" 1·1/2" 3/4" 3/8" 100 II I I 90 I I I 80 I I l-I :c 70 (!) I H IJJ I ::I 60 I >-I £0 I 0:: I IJJ 50 z I H I U. I I-40 z I IJJ I U 0:: 30 I IJJ 0-I I 20 I I I I 10 I I 0 I 10 SAMPLE Depth (ft) • SB7-3 15.0 1:1 SB8-2 10.0 A SB8-4 20.0 LeG SAND ~OARSEI MEDIUM FINE SILT OR CLAY U. S. STANDARD SIEVE SIZE 8 lr 30 50 i 110 20 40 60 100 200 ~ I I ~~ I I ~ I I I ., " I I I . I I I I \ ~ I I I I I I I I I , \ I I I I I I I I I I I I I 1\ I I \ I I I I I I I I I \ I I I I I I I I I I I I I I I I I 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 MILLIMETERS CLASSIFICATION SATWC LL PL PI . (SM) Light olive-brown, Silty SAND (CL) Yellowish-brown, Sandy CLAY (CL) Dark yellowish-orange, Sandy CLAY GRADATION CURVE VILLAGES OF LA COSTA -THE GREENS .' CARLSBAD, CALIFORNIA Figure B-2 I 1 1 I I I I I I I 1 I 1- I I I I I I PROJECT NO. 06403-12-01 GRAVEL COARSE FINE 3" 1-112" 3/4" 3/8" 100 I I 90 I -I I 80 I I l-I :J: 70 (.!) H I LLJ I :3: 60 I >-I co I 0:: I LLJ 513 z I H I LL I .1-40 Z I LLJ I U 0:: I - LLJ 30 a.. I I 20 I I I I 10 I I 0 I 10 SAMPLE Depth (ft) • SB10-3 15.0 LeG SAND ~OARSEj MEDIUM FINE Sll..T OR CLAY U. S. STANDARD SmVE SIZE 110 1 30 SO 1QO 4 20 40 60 200 ~ T T ...... I . I I I \ I I I I I \ I I I I I I I I I I I I ~ I I I I I \ I I I I I I I I I I I \ I I I I I I I I I , I I I I I I I I I I I I I I I I I I I I I I I I 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 :MILLIMETERS CLASSIFICATION ~ATWC LL PL PI (SM) Yellowish-brown, Silty SAND 23.7 GRADATION CURVE VILLAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA Figure B-3 I I I I I I I I I I I I I I I I I I I PROJECT NO. 06403-12-01 SAMPLE-NO. SB3-3 -4 -2 0 ---r--r-. i"---.. I"-r-~ ~~ z 0 2~ H ~ I-<I: , 0 ~ H ..J 0 I\. (J) 4 z , 0 II--~ tJ ~ 1--1-I-t-r----r\ z r--UJ . r--tJ r-:-~ 0:: 6 I- UJ 0- S 10 12 0.,1 1 10 APPLIED PRESSURE (kst) Initial Dry Density (pet) 107.0 Initial Saturation (%) Initial Water Content (%) 22.6 Sample Saturated at (lest) CONSOLIDATION CURVE Vll..LAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA LeG - 100 100+ 0.5 I Figure B-4 I I I I I I I I I I I I I I I I I I I PROJECT NO. 0.6403-12-01 SAMPLE NO. SB7-4 -4 -2 0 -- :z 0 2 H I-<t: r.... c r.. H ..... r-. ...J 0 ~ ~ (J) 4 z '" 0 (.) I-~ :z I..iJ " U 0:: 6 I..iJ "-a.. -r\ ' . f\~ I-' 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, CALIFORNIA LeG " 100 18.1 0.5 Figure B-5 I I I. I I I 1 I I I I I I I I I I I I PROJECT NO. 06403-12-01 SAMPLE NO. SB8-3 -4 -2 0 ------r--. ~ -r--r-. ~ ~ r-- "'" ~ to-""r------.. z " 0 2 H r-... .... " I-~ <t , r---. joo.... ~~ 0 H ....J 0 en 4 z a u I-Z UJ U ~ 6 UJ 0- 0 8 10 12 0.1 1 10 100 APPLIED PRESSURE (ksf) Initial Dry Density (pef) 113.9 Initial Saturation (%) 100+ Initial Water Content (%) 18.2 Sample Saturated at (ksf) .5 CONSOLIDATION CURVE VILLAGES OF LA COSTA· THE GREENS CARLSBAD, CALIFORNIA . LeG Figure B-6 I I I I I I I I I I I I I I ·1 I I I I PROJECT NO. 06403-12-01 SAMPLE NO. SBIO-3 -4 -2 0 \ z 0 2 ~ H \ I-<t Cl H f\ ...J 0 en 4 z i\ 0 U I-~ ..... z r-..~ llJ "'i',.. U c:: 6 llJ '" 0.. " 8 '\ , ~ ~ 10 .- 1\ 12 0.1 1 10 APPLIED PRESSURE (kst) Initial Dry Density (pet) 106.7 Initial Saturation (%) Initial Water Content (%) 23.7 Sample Saturated at (kst) CONSOLIDATION CURVE VILLAGES OF LA COSTA -THE GREENS ( CARLSBAD, CALIFORNIA LeG - 100 100+ 0.5 Figure B-7 I I I I I I I I I I. I I I I I I I I I PROJECT NO. 06403-12-01 SAMPLE NO. SBll-2 -4 -2 0 -.......... r.......... ~~ r--.... -r......, '" z 0 2 r--. " H ~ \"-or-. I-<I: .. ~ ~ 0 H I'-.... ~ ..J .. 0 r--... t\ (I) ~ z 4 fiiO;;:S 0 u I-Z UJ U 0:: 6 UJ a.. . 8 10 - 12 0.1 1 10 APPLIED PRESSURE (ksf) Initial Dry Density (pcf) 116.5 Initial Saturation (%) Initial Water Content (%) 17.2 Sample Saturated at (ksf) CONSOLIDATION CURVE ! Vll.LAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA LeG ~ I 100 100+ .5 Figure B-8 I I I I I I I I I I I I I I I I I I I SAMPLE NO. S83 - 3 APPLIED PRESSURE 2 (ksf) ....... . S ~ 2220~~HHHHHH~-HHHHHHHHH~~~~~~~~~++++++++++++++++++~ ..... x ---CIJ C!) z o L5 0:: ....J .« o 2340 0 2 4 6 8 10 12 V TIME (Minutes) SAMPLE NO. 587 - 4 APPLIED PRESSURE 2 (ksf) ~70~~~~~~~~~~~~~~~~~~TTTTTT~~~rr~;;;;~~ _ 2380~HHHHHH~~~;;;;;;~~~++++++++++++++++++++rrrrrrrrrrrrH .S ..... x -U) C!) z is L5 0:: ....J « is o GEOCON 2 4 6 8 10 12 V TIME (Minutes) -TIME RATE CURVE ( INCORPORATED 0 VILLAGES OF LA COSTA -THE GREENS GEOTECHNICAL CONSULTANTS CARLSBAD, CALIFORNIA 6960 FLANDERS DRIVE -SAN DIEGO, CALIFORNIA 92121-2974 PHONE 619 558-6900 • FAX 619 558·6159 AS/RSS I I OSK/EDOOD DATE 03-24-2000 I PROJECT NO. 06403 -12 -01 I FIG. 8-9 6403TRI RSS I I I I I I I I I I I I I I I I I I I SAMPLE NO. S810 - 3 APPLIED PRESSURE 2 (ksf) ...-.. 2455 .5 "'/' 0 ..- x -2485 1\ CJ) (!) Z Cl <C 2515 W c::: -l <C Cl 2545 o 2 SAMPLE NO. ...-.. .5 "'/' o x -CJ) (!) Z Cl iZi c::: -l <C Cl o GEOeON INCORPORATED GEOTECHNICAL CONSULTANTS 2 4 6 8 10 12 V TIME (Minutes) APPLIED PRESSURE (ksf) 4 6 8 10 12 V TIME (Minutes) e ( TIME RATE CURVE VILLAGES OF LA COSTA -THE GREENS 6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121-2974 CARLSBAD r CALIFORNIA PHONE 619 558-6900 • FAX 619558-6159 AS/RSS I I DSKI EOOOO DATE 03-24-2000 I PROJECT NO. 06403 ·12· 01 IFIG.8-10 6403TR1 I RSS I I I I I I I I I I I I I I I I I I I' SAMPLE NO. S811 - 2 APPLIED PRESSURE 2 (ksf) 2320 .-.. 2330 .5 ..,. "-a ..... 2340 x f' -CI) CJ Z 2350 is U5 ~ 2360 ....l -« 0 2370 2380 0 2 4 6 8 10 12 VTIME (Minutes) , SAMPLE NO. S811 - 2 APPLIED PRESSURE 4 (ksf) 2410 .-.. 2420 .5 ..,. a ..... 2430 x -CI) C) 2450 Z ' , 0 U5 ~ 2460 ....l « 0 f' 2470 I"- 2480 0 2 4 6 8 10 12 VTIME (Minutes) I 0 TIME RATE CURVE GEDeON INCORPORATED VILLAGES OF LA COSTA -THE GREENS GEOTECHNICAL CONSULTANTS CARLSBAD, CALIFORNIA 6960 FLANDERS DRIVE· SAN DIEGO, CALIFORNIA 92121· 2974 PHONE 619 558·6900 • FAX 619 558·6159 AS/RSS DSK/EOOOO DATE 0,3-24'-2000 PROJECT NO. 06403 -12 -01,1 FIG. 8-11 6403TR21 RSS I I I I I I I I I· I I I I I I I I I I APPENDIX C BORING AND TRENCH LOGS AND CONE PENETROMETER TESTS FROM PRELIMINARY.SOIL AND GEOLOGIC INVESTiGA TION FOR LA COSTA -NORTHWEST AREA, CARLSBAD, CALIFORN,A, PREPARED BY GEOCON INCORPORATED, DATED NOVEMBER 11, 1988 (PROJECT NO. D-4230-H01) . And PRELIMINARY RIPPABILITY STUDY, LA COSTA NORTHWEST, CARLSBAD, CALIFORNIA, PREPARED BY GEOCON INCORPORATED, DATED SEPTEMBER 25,1996 (PROJECT NO. 0- 4230-12-03). . -FOR VILLAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA PROJECT NO. 06403-12-03 I I I I I I I I· I I I I I I I I I I File No. D-4230-HOI November 11, 1988 d :t I-Z w b:zw oJ "'-'" II. Q LL ::Il < 1Jl I-0 - I-2 - I-o Bl-1 I-4 0 Bl"';2 I-0 I-6 . I-- I-8 -Bl-3 l-. I-10 • I-- ~ (2 _ .1--B1-4 I-14 - I-0 I-16 0 -- ~ 18 - I--B1-5 !-20 - .... - I-22 - ~ - I-0 I-- I-0 -- -- I--. a: >-'" rlI ·e !< ~u; BORING 1 0 ~ .J ucj . 10 £S L88 0 z .J<4 ELEVATION 115 DATE DRILLED ~ ::> -::> ~ ~ 0-rlI E~100 30" Rotary Bucket (!) EQUIPMENT - MATERIAL DESCRIPTION 1/: '.': '. , ">~-;(. .. /:~:-:, ALLUVIUH CL Soft, wet, very' dark brown, Sandy CLAY " :'::.: ~ -+--'-1\ 't:;~ ~---Soft, wet, dark reddish-brown, Sandy V: -: CLAY V-,::.:: .. : ..... "'.' · : ........ . w •• '110 .. 0 • 'ri"':'': '. . · ', .. ... t • • .. I.: ..... 0" . .. .. . .-.. " r:::! V~<, l0.:':::':.':: · , , .. ' .... , . I" 0', • CL ~!1(':'<'( I'··· I :< ::."<: ----' .. , , ly.l-· . ·water table rising (caving) ,','J' :I:·i:· 1\,-- "'1>1,'1':: ------------,----. """ "1:'1 T' SM-SP Hedium dense, "tvet, gray, slightly, Silty " " •. 1'..... fine to medium SAND :.( r'~I;':: ~ .... ::>h\ ::1;':1::', L_ 1211 clean sand v,', ':; i\· :~:.;'::) CL ~oft, wet" dark reddish-brqwn, Sandy CLAY BORING TEBlUNATED AT 21.0 FEET (P~FUSAL) I Figure A-l, Log of Test Boring 1 z", .?; ;,.# Qut !<~Cii ~..: 0:,.: ~ ~~~ Wcj Qn; o~ zrll.J >-~Il!lll a: ::Il8 Q - ~ ~PUSH 112.5 16.6 121t ~ ULKS ~1PLE ~ ~ ~ ~ PUSH 08.8 19.6 ~ 12"' ~ l- I- hUSH 07.1 21.1 ~ 1211' ~ I- ~ I- PUSH 97.3 30.1 .1-18" l- I- l- I- l- I- l- I- I- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL t8'J _ DISTURBED OR BAG SAMPLE []_STANDARD PENETRATION TEST IW_CHUNK SAMPL-E • _ DRIVE SAMPLE (UNDISTURSEO) ~ __ WATER TABLE OR 'SEePAGE NOTE: THE LOt> OFSUBSURFACECONDITIONSSHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING ORTRENCH LOCATION AND ATTHE DATE INDICATED.ITIS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACECONDITIONSATOTHER LOCATIONS AND TIMES. I I I I, I, I, I I I I I I I I I I I I I Fi'le No. D-4230-:-H01 November 11, 1988 d J: .... Z UJ Ii:zUJ ..J UJ-UJ c-Q ... ::E ~ I-0 l-· I-2 · I-- 4 B2-1 I-- I-_ B2-2 I-6 - I--_ 8 - I-_ B2-3 I-10 _ I--., I-12 _ I-' . r-: 14 l-.' I-- -- ~ - I-M I-M l-e l-e l-· l-e I-- l-· I-- 1-' · I-~ - >-g ..J 0 i= ::; :;i(" • '. ", · '" . .. . . . [0',""''-· . '., " ',' ' .. · . . ....... · ". " 1b0:r •• ,.::-, ..... .' '0' D0rx:.:.:.\ • : •• ,0 •• ' • • '0 .' · '0,. '., Rj :.::-,'.:: t •• '.' • .. ,0 ...... • '0 ". o •• I . '. [0::--:::.: · ' .. ::', :~'., :.: • • ~. t • r:r: BORING 2 : UJ til !< tIl_ ~ <Ul ..Iej 125 10/5/88 Z uul ELEVATION DATE DRILLED' :J =::; ff 0-Ul E-100 30 11 Rotary Buc.ket C) EQUIPMENT MATERIAL DESCRIPTION ALLUVIUM CL Soft, moist, dark bro~m, Sandy CLAY 1---1---bec.omes orange-yellow-brown, wet 1---1---bec.omes dark reddish-brown . ' .... y.:. .': ••• : .. 1-1----1---,I, ••• 19 strong seepage -water table c.aving .......... • :: ,0 •• ;' ...... ". '0 '0 ': :: SW .": .':'.:' ~ CL Loose, saturated, light brown, c.oarse SAND -~--------------------------Soft, saturated, dark brm~, SandY.CLAY BORING T~INATED AT 14.0 FEET (REFUSAL) Figure A-2, Log of Test Boring 2 zw Qut !C~cn 0: .... ;::, tul!lo ZUl..l ~~CD I- PUSH I-12" r- I- l- I- i- PUSH. I-12" l- I- l- I- i- l- i- ~ l- i- • l- .' I- ~ ",Ii! ~....: 0:,.: ::lz Wej tii~ Q~ ·z >-~8 0: Q 110.1 16.5 BULK AMPLE 99.0 24.0 SAMPLE SYMBOLS 0_ SAMPl.lNG UNSUCCESSFUL ~ _ DISTURBED OR BAG SAMPl.E IJ_STANDARD PENETRATION TEST iiJ _ CHUNK SAMPI.:E • _ DRIVE SAMPLE (UNDISTURBED) of ... -WATER TABl.E OR SEEPAGE NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH I.OCATION AND ATTHEDATE INDICATED.ITIS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACECONDITIONSATOTHERLOCATIONSANDTIMES, I, I I I I I I I I I I I I I I I I I l- !"" !"" --- - - - - ~ ~ l-- - - - ~ I- !"" - - ~ ~ I- ~ I--- I- File NO. D-4230-HOI November 11, 1988 a: d >-w rn z C!) \( ~Cii :x: 0 ~ E:ztii w -J -'u ... 0 00:1 w-w Q. Z c ... ~ i!: ::l =::;) < ~ 0-:::; rn en (!l 0 /.: ,'. • • :.' • " •• t -DC CL 2 • 0° ' .. -· .. '.' · .... .. . ' .. -v.-B3-1 -. . 4 -. : •• '. I , . , , .... ...... -Vi • ,0' • 6 -:. -... :. '0 " • "'. "0 ... ... ' '.' -. -"'Z 0° •• \ :. 8 '" '0.· -· .... ~~" ... B3-2 : ~: '.,:.:~ -• ,., Yo SC-CL :-.' /-: 10 -B3-3 · .;.-<':-· t,. : -.,:: -~:"'" . Dr .... "" .. 12 -·.0.' '. ." .··0:: .. CL ~ -~-- 14 -,' .. ,' ... ' :. .::,.: : ,~::, :f.. B3-4 -l,-/ 16 -// -/ '/ 18 -/ HI. ~.1 -B3-5 I ,/ 20 -/ X/ B3-6 -I ~ ..... 22 /' - - -- - - - BORING 3 Zw Que: ~ wll! ~..: 155 roL5-i88 ~~U1 0:,.: ELEVATION DATE DRILLED ::lz Wu ~H~ I-rn3: Qa: w-o oz zen ... >-EQUIPMENT E-IQQ 3QIf Rota;o: Bu~kgt wWIll 0: ~8 Q.a: Q MATERlAL DESCRIPTION ALLUVIUM Soft, wet, dark brown, Sandy CLAY - - - ~PUSH 09.8 16.5 ~ 12": ~ - ~ ~PUSH Loose, wet, light brotm-oraI?-ge, very ~ll3" 11.0 17:2 Clayey fine SA-lID I--BULK ::AMPLl I- Soft, saturated, wet to mottled o live- Sandy-Gravelly CLAY ~ orange., ~" .- -I L_ isolat'ed 1211 rock 2/ \ . -6" 13,2 17.4 DELMAR FORMATION Hard, moist, medium olive, very Ciayey ~ SILTSTONE, massive .... -5 -18.6 15.3 .:. BULK AMPLl - BORING TERMINATED AT 22.0 FEET I-- ~ ~ ~ ~ - ~ Figure A-3, Log of Test. Boring 3 SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL. I8J _ DISTURBeD OR BAG SAM PLe IJ_STANDARD peNeTRATION TeST iJ_CHUNK SAMPl'e • __ DRIVE SAMPLe (UNDISTURBeD) ~ __ WATeR TABLe OR SEePAGe NOTE: THE LOG OFSUBSURFACECONOITIONS SHOWN HEREON APPLIES ONL YATTHESPECIFICBORING OR TRENCH LOCATION AND ATTHE DATE INDICATED. ITIS NOTWARRANTED TO BE RePREseNTATIVEO FSUBSURFAceCONOITIONSATOTHeRLOCATIONSANDTIMES. I I I I I I I I I I I I I I I I I I I- l- I- I- File No. D-4230-HOI November 11, 1988 d z :I: ... b:z UJ III ~ UJ-UJ Q. C ... ::; < 'Ul 0 · 2 · B4-1 - > 8 ~ g .;: ;j v····· "0· ..... "'" .0. . '. .. " .... • •.. 0 .... .. 0° , .. " ," ..... '" .. .' . a: UJ Ul l< Ul_ ~ <til C -'cj u til z ~ ::!:j ff 0-Ul (!) CL ~ 4 - BORING 4 ELEVATION j20. DA.TE DRILLED 10/5/88 , EQUIPMENT E-lOO 30" Rotary Bucket MATERIAL DESCRIPTION . ALLUVIUH Stiff, moist, dark grayish-bro~, Sandy CLAY --/, .. : ------becomes very ~oist ~ 6 · I'" .. · " .. "'of 0 ..... ... " ... I-- 8· B4-2 l-· v··:···· , .... " .. .. .. " .... . ". : .. " .~ I-1 ~ l- I- PUSH I-12,r I-.B4-3 '. . :.':.:' '/.1 .. 1-----strong seepage (in sand) water table (caving) - I-10 _ I-~ - I-12 .. B4-4 l-· I-i4 . l-· I-16 _ '"" - ... 18 _ ~ · I-20 i-· -· ... --· -- l-· ... · l-· ... - W:·:·:··· "v"\{: t.'"', -, -.' .... _ .. . , . · . 0:":',' "., " .. 0", ..... • 0" .... I .. " .... .. · '.. ". W··.', 0"" I I, • "0 eo .. .... ,. I ' .. -.. .. .. I' .. ':: :.:., .:; Ie ••• /.~. S'Vl 1\ Loose, saturated, light brown, coarse L_M _ ND _______________ . __ _ CL Soft, wet, dark brmm, Sandy CLAY BORING TEID-UNATED AT 20'.0 FEET' (REFUSAL) Figure A-4, Log of Test Boring 4 - I- I-pUSH . I-12" r--- - l- I- l- I-.. - - ~ l- I- I- 111. 15.7 103.( 20.~ ULK S I\11PLE 105.3 21.~ SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL 18l_ DISTURBED OR BAG SAMPLE IJ _ STANDARD PENETRA TIOH' TEST ii_CHUNK SAMPL-E • __ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE. THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIESONL Y ATTHESPECIFIC BORING ORTRENCH LOCATION AND ATTHE DATE INDICATED.ITIS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS ATOTHER LOCATIONS AND TIMES. I I I I I I I I I· 1 I I I I I. I. 1 I I I- I- f- f- ~ - I- l- I- File No. D-4230-HOI November 11, 1988 0 - 2 - -4 _ - 6 • . 8 . V::''':· · .' " .. I BS-l l)1 r.:.:::_.~ DC l?S .' . ., .... " .. ' CL BORING 5 ELEVATION ___ 1_20.:...-___ DATE D RILLED. __ -=1..::.0L.:./S ..... /..:::8:.,:::8_ EQUIPMENT E-100 30" Rotary Bucket MATERIAL DESCRIPTION ALLUVIUM Soft, moist, dark brown, Sandy CLAY 1-' . BS-2 !0:"":':":< bS· .. :.~.·:.:.:.~. f------becomes wet ~ 10 _ ~ -.... I-12 _ I-- ~ 14 _ . ~ -. I-16 _ I-- I-18 I-- I-- I-- I-- I-- ~ - i-- I-- ~ - I-- i-- '0· • -...... · ...... .~. ~'. "/1_ ___ _ strong seepage; water table (caving) .' Z~"I'" '-h BS-3 I:·:··~··:·: . I~ ____ --.------------ ::::'.::. :~: SW Loose, saturated, light brown, coarse ...... " .. \.. SAND V···:····· L-· : .... /J.. CL So--ft-,-w-et to saturated, medium bro'trn, '"' ........ . . " ... .. 0 ... .. .' . : :-.'. 0 ..... • -. SW Sandy CLAY Loose, saturated, light brown, coarse SAND BORING TERMINATED AT 18.0 FEET (REFUSAL) Figure A-S, Log of Test Boring S I- ~USH 02.6 12" l- 10.3 I- i- I-- I- 1/1211 1--10.8 19.0 I- ~ I- 21.4 1/12" ~OS.8 l- I- l- I- l- I- l- I- l- I- l- I- l- I- l- I- I- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL ~ _ DISTURBED OR BAG SAMPLE IJ _STANDARD PENETRATION TEST il_ CHUNK SAMPL:E • __ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFICaORING OR TRENCH I.OCATION AND ATTHEDATEINDICATED.ITISNOTWARRANTEDToaEREPRESENTATIVEOFSUBSURFACECONDITIONSATOTHERLOCATIONSANDTIMES. 1 I 1 1 1 I I I I 1 I I. I .. I I· I I. I I File No. D-4230-HOI November 11, 988 :t ... tzw w-w o .. I-0 ~ - "'" 2 - I-- ... 4 --- I-6 · l-· ~ 8 · l-· ~ 10 - I--... ~ 12 - .~ - .1-14 ~ · I-16 - I-- i-18 - l- i-20 - I-- ... ' . r---- -- i-· I-- I---- d z w ..... a. ::0 ~ B6-1 B6-2 B6-3 : ~ o ..... o ;: ::; BORING 6 ELEVATION~ ____ . .=.1.=.22"'---__ DATE DRILL~D,--=1:..:::.0..L-/ 6:::..J/~8~8 __ _ EQUIPMENT E-100 30" Rotary Bucket MATERIAL DESCRIPTION CL._ h ALLUVIUM 1\ Loose to medium dense, humid, tan, silty \ fine SAND with some clay SM L--------- Medium dense, slightly moist, tan, Silty fine SAND with little clay, small chunks of alluvium in sandy matrix ---strong seepage (caving) \ BORING TERMINATED AT 19.0 FEET I Figure A-6, Loglof Test Boring 6 l- i- l- i- I- 3 106.7 13.8 l- I- l- i- I- 4 -111. 0 18.5 r-.... l- I- 3 110.4 18.0 l- I- l- I- l- I- i- l- I- ... l- I-- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL r81_ DISTURBED OR SAG SAMPLE (]_STANOARD PENETRATION TEST IW_~HUNI( SAMPL:E .• _ DRIVE SAMPLE (UNDISTURBEDI ~ _. WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACECONOITIONS SHOWN HEREON APPLIES ONLYATTHESPECIFICBORING OR TRENCH LOCATION AND ATTHE DATE INDICATED. IT IS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONSAND nMEs. I I·· I. I I I I I I I. I I I I I I I I I to-' .- .- I- .- r- to- to- r- 0.. l- i- r- to-- .- I- I- r- t- I- I- I- r- r- r- I- I- ... r- r- File No.D-4230-HOl November II, 1988 a: d >-~ V> "0 rIl_ X Z 0 ~ S'" li:ztii Ul ..J utJ ..J 0 w-Ul 0.. Z ..J<4 C ... ::li ~ ::J -::> Ii! 0-< ~ rIl ,rIl (!) 0 ::.,.-.\:.:(: SM -:·(r '.1'< .::. of :.:: ',_, 2 -.:·:i:\:i: -\\:( ~ :: 0:-.~. 1----:::::'>-':'r"I'\ ' 4 -,," '. ,0. :'j:'i:·(· -B7-1 •.... ,. . '·\::1':. 6 -:: \:/ (:1:: ."~':!':{ -::(\>'1:: 1----8 .' ", -::'-1':\ ::1.:: -.' :'\::\,'. :\.: .' '. 10 _ • " .' I. .; \<1, '\" -.: ('\',: \:': " f ' ... :'\::1' '.\;: 12 -· ". : 1"'1':1: . ';:1 ;:1: :l: ': - 14 _ ·(l/ J:-IL . -~:> 16 -B7-2 - 18 -;/. .. [,0 •••••• :. :. ,'. '. ')' -'.' '. ,i(' SC •. ',%,', 20 -',/,: ... t.(.--: '. : • .' .. ~;. -' .......... y.; t:':·~':" . 22 -... ;"':-. '. '-/.' , . ~ ... , ':: 1-----:'-, ::';. .... ~.-. 24 -'::,:'.(-::':: 1;:' ... -i.·:\;} B7-3 ::~I'.' 26 -':.:%:' .... · ;'/' .. , '. Ii>.' :~ .~~ -'" '. ( :;.' 28 -~:::: j<~,~' . BORING 7 ELEVATION 300 DATE DRILLED 10/6/88 EQUIPMENT E-100 30" Rotary Bucket MATERIAL DESCRIPTION TORREY SA..l'lD S TONE Loose, dry, tan, Silty fine SAND ~ Dense, damp, tan, Silty, fine to medium SANDSTONE, cemented .\ I \ \ I ·L cobbles ~ L-l;>ecomes gray, less cemented r depositional contact: N30E75E Hard, moist, gray, Clayey SILTSTONE Very dense, slightly moist, gray, Clayey fine SAND STO:NE --becomes light blush gray and slightly cemented r-becomes light greenish gray ~~y.. -'. ' I -:.--~.)~~;.: 1---1) 30 ·::r,',:r .:-): '. -sR Zw ~ w·, Quli: i!cn ~..: a:,.: i=z wtJ tCl)=: Co; 2?e! -0 zCI)..J >-OZ UlWIll a: ~8 0.. a: C l- r- r- r- r-10/ 112.2 6.7 r-6lT i- i- r- l- l- I- r- i- 'r- to-10/ 108.4 16.5 11" ~ - r- I-- r- r- r- r- ... 15/ 109.3 7.1 i-6" 0- - I- Figure A-7, Log of Test Boring 7 BORING CONTINUED NEXT PAGE SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL t8l_ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION T~ST IiiJ_CHUNK SAMPL-5 • __ DRIVE SAMPLE (UNDISTURBEO) * __ WATER TABLE OR SEEPAGE NOTE, THE LOG OF SUBSURFACE CONOITIONS SHOWN HEREON APPLIES ONL Y ATTHE SPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITIS NOTWARRANTEDTO BE REPRESENTATIVEOF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES, I 1 I I I I I I I I I I I ... : I I I I I. I File No. D-4230-HOI November 11, 1988 I-- I-32_ ., , I. I-- I-34'- I-36- '., '" -- i-40- d z UJ ..J 0. ::E ;a B7-4 :H) B7-5 -' -.I' I-42- I-'- l-44- l- I-46- l-- ~ - I-- -- I-- - I-- I-- I-- I-- I-- I-- - > C) 9 o iE ::; BORING 7 (CONTINUED) ELEVATION _______ DATE DRILLED,_-=l.lo!:"OJ.../lo!.:6·w/80L!08,-. __ EQUIPMENT Dense, moist, greenish-gray, Silty fine SANDSTONE I----f---becomes light bluish-green gray -". " ':> ~ --strongly cemented ,/" BQRING TERMINATED AT 45.0 FEET Figure A-B, Log of Test Boring 7 I-15/ I-6" l- I- I- -- ~ I- :- !- - I- I- l- I- - . .103.7 7.B ~ULl( S~LE SAM PLE·SYMBOLS 0_ SAMPLING UNSUCCESSFUL ti?J _ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST ~ _ CHUNK SAMPl.-E .• __ DRIVE SAMPLE (UNDISTURBED) ~ _ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH LOCATION AND ATTH E DATE INDICATED. IT IS NOTWARRANTED 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 File No. D-4230-H01 November 11, 1988 d > ~ '" ;;: BORING 8 8 ~-:z: 0-w 3: .... Cil b:;;:W .... '"' Q UU 0 ELEVATION w-w ... ~ z .... <4 Q ... ;) -::l 1 __ ....:3:...:0-=.5;.... __ DATE D RILLED._-..;1;.;..;0;..:..1..;:...7.:--/8;;...;8:..-.-_ ~O .... - .... 2 - l-· .... 4 - I-- 1-6 · I-- 1-8 .. .1-· t-10 _ .... --" t-12 _ -I--. I-14 _ I-- ~ 16 _ I-- 1-18 - .... - f-20 - I-- I-22 • I-- I-24 • .1-- I-26 - -- I-28 - l-· 30 ::Il ~ :::; if C!l B8-1 B8-2 B8-3 B8-4 B8-5 BS-6 0-U) EQUIPMENT E-100' 30" Rotary Bucket MATERIAL DESCRIPTION TERRACE DEPOSIT Sl'1-GM Very dense·,· moist, . light reddish-brown, very gravelly Silty coarse SANDSTONE,· grit pebble size gravel. TOILREY SANDSTONE -Very dense, moist, light tan, Silty fine SANDSTONE, massive, some orange, laminated SM thin beds I-___ I-_less clay -t- t- I-BULl.< t- 10/ 1-16.9 I-11" I-BULK -- ~ l- I- l- I- i- 151 -10" 1"24.2 l- I- t- ..... t- t- t- ~ -15 119.6 -BULK - l- I- Figure A-~, Log of Test Boring 8 BORING CONTINUED NEXT PAGE SA"MPLl 7.3 SA.7'1PLJ 5.0 7.8 ~.AMPLl SAMPLE.SYMBOLS o _ SAMPLING UNSUCCESSFUL . I8J _ DISTURBED OR BAG SAMPLE IJ _STANDARD PENETRATION TEST iJ_CHLJNK SAMPL-E • __ DRIVE SAMPLE (UNCISTURBEC) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLYATTHESPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITlS NOTWARRANTED 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 File No. D-4230-HOl November 11. 1988 :r ... li:zw w-w C II. I-30 - ... 34 - 1-36 I-- 1-40 ' • I-• ... 1-42 _ I-• ,..44 _ -- _48 _ I-- 1-50 - I- t-52 - I-- l- I-.. - -. . ---- d z III .... ... ~ >-.CJ 9 0 i!: :; II: ~ == c z ;:) If CJ '" "'iii :5(j ulIl =~ 0-.'" SM ML-MH SM BORING 8 (CONTINUED ) ELEVATION DATE DRILLED 10/7 /88 EQUIPMENT MATERIAL DESCRIPTION ~sharp depositional contact with hematite band in sandstone, 1/8-1/2" wide, no shearing N70E,11S Very hard, moist, light olive-green, Clayey SILTSTONE nearly horizontal Very dense, moist, light tan-white, .Silty fine SANDSTONE, cross~bedd~d and massive ______ dark brown layer 6" thi'ck above cemented layer -...... __ :.>-.-cemented sandstone' layer 12" thick, calcium carbonate cement BORING TERMINATED AT 51.0 FEET Figure A-IO, Log of Test Boring 8 5w . iu: wI! _ut:: !<~~ a: ...... ~ffi ~~~ W(j Q~ (5\; z"'..J >- . ~~al a: :!8 Q -- --10 112. , 15.5 - I-~ULK S ~r:.E l- I- t- l- t- t- l- I- I-.. - - I- ... ---- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL . t8l_ DISTURBED OR BAG SAMPLE IJ _ STANDARD PENETRATION TEST iJ _ CHUNK SAMPL-E • __ DRIVE SAMPl.E (UNDISTURseOl ;. __ WATER TABl.E OR SEEPAGE NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY A TTHE SPECIFlcaORING ORTRENCH 1.0CATION AND ATTHE DATE INDICATEO.4TIS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHJ:R LOCATIONS AND TIMES. I I I I I I I I I I I I I I I 1- I I I File No. D-4230-HOI November .1.1, 1988 1-0 I-- 1-2 - I-- 1--4 - I--B9-1 1-6 - I-!B9-2 - I-8 - I-- I-10 --- -" -12 - I-- i-14 - I--!B9-3 I-16 - I-- -18 - i-- I-20 - I-- I-22 - ... - -24 - --B9-4 I-26 - I-28 - ... -30 > ~ § ~ 0 Z J: ::I >-If ::; C!I Ul ~Ui 0° .... tIl -::I 0-rn SC 8M ML 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-o.range~ Silty fine SANDSTONE, some clay, fracturing mostly massive Zw t o0t: wll! ~z 0: ..... a::~;a ::Iz tii!!l~ LUtj t;w ca,: 6~ zrn .... >-wWm a:: ~8 Q,a:: c - >- 4 114.6 15.1 l- I-~ULK ~ AMPLE I- ~ --- I-- l- I-7 1.10.9 17.0 ---- l- I- I- ... I- - 8 l- I- I- Figure .A-ll, Log of Test Boring 9 I BORING CONTINUED NEXT PAGE SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL . 18l_ DISTURBED OR BAG SAMPLE IJ _STANDARD PENETRATlON TEST iJ _ CHUNK SAMPL-E • _ DRIVE SAMPLE (UNOtSTURe!~1 ~ __ WATER TABLE o.R SEEflAQE NOTE: THE Lo.G o.F SUBSURFACE CONDITlo.NS SHOWN HEREo.N APPLIES ONLY ATTHE SPECIFIC BORING ORTRENCH LOCATION ANO ATTHE DATE INDICATEO.ITlS NOTWARRANTED TO. BE REPRESENTATIVE OF SUBSURFACE CONo.lTIONSATOTHER LOCATIONSANO TIMES. I I I I I I I I I I I I I I I I I I. File No. D-4230-H01 November 11, 1988 0: Cl >-~ VJ BORING 9 (CONTINUED) ZW t 8 "'-~ztii z ::: S"" O0li: wI w .." C ocJ ~~tn 0: .... .." 0 ELEVATION DATE DRILLED 1 0/6/88 ~z w-w "-z ..,,"1 ~l1i~ wcJ ~~ o ... :; ::c ~ -~ ~ 5 If 0-oe,; OZ '" z"''''' >- t!) EQUIPMENT ~~Ql 0: :;8 c· MATERIAL DESCRIPTION I-30 !vV; B9-5 Hard, moist, dark gray-olive, Silty 10 115.0 15.1 I--CLAYSTONE to very Clayey SILTSTONE, i- B9-6 IBULK AMPLE '"" 32 -~I V CL-ML contains lignitic material ~ .. .. )/V'I I- .. 34 .. /1 1 -I~ .. - i-36 -\ -BORING TERMINATED AT 35.0 FEET i--l- i--r- i--: i- i--r- i--i- -' i--I- .1--l- i---l- i---l- i--i- --I- --r- i--l- i-. -l- I--l- I--t- o--I- .. -I- --l- i--l- i--l- I--l- i--t- Figure A-12 , Log of Test Boring 9 SAMPLE $YMBOLS o _ SAMPLING UNSUCCESSFUL . 12?l_ DISTURBED OR BAG SAMPLE (J_STANDARD PENETRATION TEST iJ _ CHUNK SAMPL-E • _ CRIVE SAMPLE (UNOISTURBED) ~ __ WATER TA8l.E OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON A?PLIES ONL YATTHESPECIFICBORING OR TRENCH LOCATION AND ATTHEDATEINDICATED.ITlSNOTWARRANTEDTOBEREPRESENTATIVEOFSUBSURFACE CONDITIONS AT OTHER LOCATIONS'AND TIMes. I I I I I I I I I I- I I I I I I I I File No. ,D-4230-ROI November 11, 1988 ~ 0 :,:Zi:':f ~:.:., " ," r ,,',1.-:" ,,' ":1.'" SM-SC "." , . , '<I~%,: :1": f--1/.>' "'; 4 : -t'} I: :1/.. , . YI .. ' f--, ';r, ... :.r~.l' : I' : ~ -I""':' 6 B10-1':, 1"~ f--• ;;,r.:: B10-2 ~:I::(·: ~ -··f.~ 8 :: 07.': BORING 10 150 1'0,/.6',/88 ELEVATION, _______ DATE DRILLEDI--.,;.~...:.!..,;;.:,...:;.,,;;._ __ EQUIPMENT B-100 30H Eotary'Bucket MATERIAL DESCRIPTION UNDOCUMENTED FILL Loose to medium, d~mp, medium-dark brown, mottled Silty, Clayey fine SAND ~. :·,[·¥:.:f,.: 1':V1~:'~' ,~:·:..:.:,:':'::~·:":I-~-'-~--S'-O-f-t-, -w-e-t-, -d-a-r-k-medium olive-brown, mottled ~ :~o>:::~ CL Sandy CLAY ~ . . ~. 9 fit-: V<'-" >. . to-10_ -. , ,. _ 1'2 • I ..... , " ...... . , " --::-. .--, ~.; ~ 14 _ t:=:~~:'!o...:' ;~£"";";~~~''I-+---M ~Irregular, but sharp fill/formation contact ~ slopes in SE direction no debris or strong - odors '1' ': :,:':\':' ~,-,', :., -.~ 16 B10-3 .,:-/:r.-, ~ , ,-~r·,:I-J: ~ _ .. ,,::',::(. ~M-SW DELMAR FORMATION Dense, moist, light tan-olive, medium to coarse; Silty SANDSTONE ~ 18 --:1:: ,::{:: :'1":'::]:: LIrregUlar,. but sharp deposition-contacts, - to-20 - I>-~"""~",:,;!:";:-~~J.:.:';::.j-+--'-I\ nearly horizontal, V1 I ' ___ --'~--~~---------II'V l/1! I-• ..:-22 _ CL Hard, moist; medium olive-green, Silty CLAYSTONE, massive, blocky ~ -Il.y I-24. 1.0 1 I--B10-4 [Xl r-6-8" calcium carbonate cemented layer ~ 26. _ BlO-5 'IV I I V\ I I r-becomes medium, light olive, more fractured I-- ~ 28_ ~ - 30 ri 1-__ 1 I, random slickensided surfaces I 1-'-::::::::'-f-i, I If" I Y,I I ir-slight seepage 1----1-/1 I I ~f----I-J' - I-7 ~ 122.0 8.3 BULK SAMPI 127.6 8.8 22.1 12.6 BULK AMPI Figure A-13, 'Log of Test 10 BOR]NG CONTINUED NEXT PAGE SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL ' t8l ~ DISTURBED OR BAG SAMPLE Il_STANDARO PENETRATION TEST til_CHUNK SAMPL-E " , • _ ORIVE SAMPL.! (UNOISTUFlIEDI ~ _ WATER TABL.E OR UEPAOE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIESONL YATTHESFECIFICBORING OR TRENCH I.OCATIONANC ATTHE DATE INCICATEC, IT IS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONSANC TIMES, I I I I I I I I I I I I- I I I I File No. D-4230-H01 November 11, 1988 II: d >-~ z 8 :t ... '" 3: S:zW ..J C ..J 0 w-UJ Q. z Q u. ::Il i:i ~ ~ :::; 0 30 I-~--I-- I-32 _ UYr I--I I i-34 ~ I/( I I I- I-36. i-· I-- I-- I-- I-· i-.r - I-- i-· I-- I-- l-· ~ - I"" - i-- I--- i-- t-· t-· I-- i-· I-- I-· I-- BORING 10 (CONTINUED) ~c,; ~~t;; ~ -'0 ~..: !cz ...... 0", -ELEVATION DATE DRILLED e:~~ wo :!;;j Qa; 0-UJ-o C/) ZUl..J >- EQUIPMENT It!M!m II; Q MATERIAL DESCRIPTION l- l- l- i- --l-\ BOaING TERMINATED AT 35.0 FEET !"" I"" , l- l- I- l- --.-. ---- -- l- l- l- l- l- l- l-. l- !"" I- I Figure A-14, Log {of Test Boring 10 I I SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL • ~ _ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST iiJ_CHUNK SAMPL.-E • _ DRIVE SAMP\.! (UNDISTUAIED) ~ __ WATER TABLE OF! SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHESPECIFIC BORING OR TRENCH LOCATION AND ATTH E DATE INDICATED.ITIS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. "'# 11;"" 2ffi U>t-~8 I I. I I I I I I I I I I I I I I I I· I File No. D-4230-H01 November 11, 1988 a: d ... ~ CI) BORING 11 z Cl ~Cil x ... 0 :: tzw w ...J C -'(j ...J 0 Z tJ", ELEVATION 3QQ DATE DRILLED loLIOL88 w-w 11. l: ::> ::::j C ... ::0 .... 0 0-< :::; a: '" In Cl EQUIPMENT E-IOO. 3D" . BQtaI:~ BlH::ket 1-0 MATERiAL DESCRIPTION ~ . ']6).P $.0 IL . t; t ~~\. ... f -I--CL Soft, moist, dark brown .. Gravelly 9LAY ... 2 -0t' ~1l-1 0 03-' -- _4 t: \ - I-DELMAR FORMATION -U{( Soft, moist, light olive· mottled white, 1-6 . Silty CLAYSTONE, highly fracture~, I--CL-CH weathered ~ 1-8 -~11-2 1 I I--~~ , I-10 -~11-3 V~ .... uf: f------gypsum seam, in bedding N50E,22NW, potential I--shear filling .". 1 I : I-12 -~.-.-~-becomes firmer, I--with yellow-greenJbanding ~ mottling I-14 • ?'- r;?1 1 1----r'L-bedding-plane shear ~5SE, 15NW, ~" t:emo1ded I--~ slickensided orange/olive clay with I-16 -gypsum, throughgoing I--~ I-18 -Bll-4 % i-- f-20 -r-becomes harder, blocky . I I I I I--ut ----fi ~harp depositional contact, but with thin f-22 -1/16" orange· remolded clay seam, N50W,6°SW --~ -24 - I--I I I I Moist to wet, light olive-tan, slightly 1 1/ Silty coarse SANDSTONE I-26 -... .... , ... . '1-:1-:1: . strong seepage !--. (' . r-, ",I". (1:': I ... 28 -I:~:I\:': 'r-becomes clean sand Bll-5 ----ii, --, :::·\::1:' ~ 1---1),--rocks 30 :1" j'" r-1--il .... " .... aw . ~ wI -tJt i~rn ~~ a: .... ::>z 1-",3= W(j ~~ w-o Cc.: z"'..J .... Oz wWCD a: ::08 11. a: C I- ~USH ~O" 104.9 20.1 1/4" I- l- I- I-PUSH 96.5 26.5 6" I-2/6" I-~ULKE MfPLE I- l- I-. I- l- l- l- I- 3 106.8 20.8 l- ro- I- I- ... l- ... ... I- ... 9 123.6 11.6 ~ Figure A-IS .. Log of Test Boring 11 BORING CONTINUED NEXT PAGE SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL ~ _ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST 1iJ_ CHUNK SAMPL-E • __ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATi'HE SPECIFIC BORING OR TRENCH l.OCATION AND ATTHE DATE INDICATED. ITiSNOTWARRANTEDTO BE REPRESENTATIVEOFS UBSURFACECONDITIONSATOTHER LOCATIONS AND TIME5. I I I I I I I I I I I I I I I I I I I File No. D-4230-H01 November 11, 1988 II: Ci >-~ en BORING 11 (CONTINUED) ZW ~ Z Cl "'-Quit w# tzl:i:i 0 :: Sill w -J .0 U O 10/10/88 !<~tn ~u.: e: .... - ..J 0 ELEVATION DATE DRILLED :::lz w-w !I. ~ z -J<4 ~!i2~ WrJ ~~ Q ... ~ :::l -:::l 0<1: ~ 0-~ :::; en zen-J >-02: Cl EQUIPMENT WWIIl II: =<8 !I.e: Q ~ 30 _ .. MATERIAL DESCR1PTION • t e' , .• f--: .. v: : .... ,t contact not visible because of water !"" .,..,: -,0\". I i-32 -SA-~TIAGO PEAK VOLCANICS ~ i--Very dense, moist, dark brown, gray, green --porphyritic VOLCANIC ROCK, slight to - moderate fracturing r--- l-· . i--BORING TERMINATED AT 31.5 FEET (REFUSAL) l- i-· l- i-· l- I--r- i--i- .r l-· i- -l-· .~ i-· l- i--r- i--i- ~ -t- o. -l- f--i- t--... - i--l- i--I- ~ -I- --- I--- f--l- I--l- i--l- i--I- Figure A-16, Log of Test Boring 11 SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL t8l_ DISTURBED OR BAG SAMPLE (] _ STANDARD PENCTRATION TEST IiW _ CHUNK SAMPL'E • _ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORINGORTRENCH LOCATION AND ATTHE 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 File No. D-4230-H01 November 11, 1988 d z x .... fua:~ w ..l '" C u.. ::; « m 0 - I-2 _ - > 8 .j 0 E .j :f:,,;:I:: : "1':'1 ::'j ~: , " t .' ( •• ~ '.(1,',< 't :'. ". ':1·:" .'I',: c:: w !C ~ Z :l li? 0 .m .~;;; ..l(j Uuj '::::;j o-m SM BORING 12 ELEVATION 215 DATE DR I L LED,_--,-l OI.LJ,.....17u/w.8L108~_ E-lOO 30" Rotary Bucket Zw ~ wi!! out:: ~z_ ~~ c::,.: c:;5~ :lz W(j 2i~ I;j!!lo Ca: Zm..l > 0% ",WtO c: ::;8 "'c:. c EQUIPMENT MATERIAL DESCRIPTION TORREY SANDSTONE Dense, moist, tan, Silty fine SANDSTONE l- I- I- ~ 107.0 20.3 ~ULK ~ !AMPLE 3 '::F.'I':;I:,: ~ nearly horizontal depositional contact I--~:r'l;~:I~~:I~~:~, -+ ____ ~L-f . ________________________________________ +-__ ~r_--~---- I-6 _ B12-1 Iv DELMAR FORMATION I-4 - • B12-2 .~ / 'f Hard, moist, olive-orange, mottled, ~-CL \ Clayey SILTSTONE bedding horizontal vr> L I-8 • .. - _ 10 _ ",' .'::', .. :,I~,I', I--' "'1 .I'. oJ" B12-31.; ,,>1" I-12 - ' .' '. '}' .,'.". I-. • .(.1-:1:. , I' .I' .1· , I-14. . I-16_ - I-18- - :: 1'.'1::1:: : 1"1'," .-.{(,':. :\ .1.< ':1 • 1 ~'.1:. >1 :1 :-1.-. '1 . .'1-": :., .. \', I': "\':\ '1 .. SM Dense, moist, light olive-tan, Silty fine to medium SANDSTONE, interbedded thin siltstone beds I-20. B12-4 ~':/':'" '.:; :.· ... 1:, r,'.: t-___ I-c ment d 0 __ ---e e z ne 1--'--r-"':'-1l--f-o'===--. --h. - I-22-V(I I I~----__ -------------------:~ /!: - .. 24- - I-26· I-• I-- I ,j/ I Very hard, moist, olive mottled with yellow-orange, Silty CLAYSTONE cemented zones becomes brown -olive BORING TEP~INATED AT 25.0 FEET Figure A-'l7, Log of Test Boring 12 SAMPLE SYMBOLS 0_ SAMPLING UNsucceSSFUL t8J _ OISTURBED OR BAG SAMPLE IJ_STANOARO PENETRATION TIlST Iii;! _ CHUNK SAMPL-E l- I- .1- I- '1- l- I-9 116.0 8.0 I- .1- l- I- l- I- I- ~ 5/ 5" 1-. 111. 6 9.3 l- I- l- I- I- • _ DRIVE SAMPLE [UNDISTURBeD) ~ __ WATER TABLe OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHE SPECIFIC BORING OR TRENCH L..OCATION AND A TTHE DATe INDICAtED. ITIS NOTWARRANTED 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 I I· File No. D-4230-H01 N, :.: ... ~~ttl Q ... _ 0 I-- I-2. I-- I-4..: I-- -~ ,,.. 1 Ci z '" oJ Il. ::E < U) 6 1813-1 ~ . ~ - I-8_ I-'. I-10. ~ . I-12. I-.; I-14. ~ - I-16.11313-2 11313-3 ~ - .... 18. ~ . I-20. f-- ~ 22- I-- I-24- .... . -B13-4 I-26 -- I-28- I-- 30 ·'-CQt >-t!) 0 oJ 0 ;: :::; a: ~ ~ 12: ;:, @ C> U) !;2-oJUl ()u oJ"l -;:, 0-U) SM-ML BORING 13 ELEVATIONI __ 3_25 ____ DATE DRILLED, __ .:,;l 0::.l/-=1:..:::0.L.1=..;88~ EQUIPMENT E-100 30 1t Rotary Bucket MATER!AL DESCRIPTION TORREY SANDSTONE Dense, moist, light tan, Silty very fine SANDSTONE, to Sandy SILTSTONE; laminated to massive with orange banding 1---h \ . L-bedd~ng N45W,7SW ML SM-ML f .co~tact sharp, N45W, 15 °SW ---- Hard, moist, light olive-tan, Clayey SILTSTONE Dense, moist, light tan, Silty very fine SANDSTONE to Sandy SILTSTONE, laminated to massive 1--__ _ ;'>I---greenish-gray zone I- l- I- l- I- ro- 8 l- I- l- I- f- l- I- l- I- l- II .. l- I- l- t- l- I- I- I- 1-11 ?: III Z...: "'u c~ >-a: C 115.9 7.0 1'13.7 16.0 ~ULK ~ AMPLE 112.1 10.5 Figure A-1S, Log of Test Boring 13 BORING CONTINUED NEXT PAGE SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL t8J _ DISTURBED OR BAG SAMPLE IJ_STANDARD peNeTRATIoN TeST ,,_ CHUNK SAMPl.:e • __ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATEO.ITIS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONSANO TIMES. I I I I I I I I I I I I I I I I I I I File No. D-4230-H01 November 11, 1988 d :r ... z w S:ZW ... w-w D. Q ... ::; < (/l I-30 I-- I-32 - I-- I-34- I-- 1-.36 - ~ - I-38 - !-- !'"' 40 - I-- .; I-42 - - a: BORING 13 (CONTINUED ) ). ~ Ul (!J 5 iii 0 ;: ..J c uIJ '0 z ..J<4 ELEVATION DATE DRILLED iE :::> -:::> ~ 0-~ Ul CI EQUIPMENT MATERIAL OESCRIPTtON ·:.i:: -;"i:: ::j:': ::.,:.:' :: ,:: ',:t.: ... .: : .... ~ 1-----1--.-'-1, .,.. .,. ~.~( j.\':. "1< ',," .', ' •• t ' ... slight seepage ':,-: >\< '::{ >:\,.: :Y. e-.------slight s.eepage : 'r.: : :i:': ... , ':1:: ::,>, I •• -'1' ;',:, : ,( I----f---bedding horizontal :': I:' :;j:': :":i':::::( ,. " ".l "I' ':1" :::J:"~ :'/: ::( '::,::, .!: I-44 -: ':/' ':,(.:' .... ------strong seepage I--B13-5 -~> -::S::~Lsharp deposition contact, nearly horizontal I-46 -7 I . ~~ I ------// ML \ DELMAR FORMATION /' I Hard, moist, dark olive to brown, very .\/ I Clayey SILTSTONE, calcium carbonate ~' ,cemented lenses ... 48 - - I-50 -B13-6 _. ;' I !-w ,: ~~ \' • .. iJ-,:, I I-52 -B13-7 ... ~:: -:',' L_ dark brown. c~mented fossil zone approx; t.-: ", : \ 8" thick ~ -'",'. ' .. (' " '. ~~.,' : /. : .. ' ~-CL LLhorizo.ntal beds I-54 • - I-56 ------ " ... ~ •. I.' .',' . ";' ---_._------------ :. ::~: ::: Very hard, dark greenish-gray to gray, Clayey to Sandy SILTSTONE; scattered coal fragments, carbonaceous BORING TERMINATED AT 56.0 FEET Figure A-19, Log of Test Boring 13 I- - -- - l- I- I- - '---- l- I-- Zw Ou/: ~z, l!:g~ w-o zll'l..J ~~al 9 30/ I-7" I- -... --- - ~ will ~u.: a: .... i:!Z WIJ (/lW Qa; 51: ). a: ::;8 Q 106.1 19.8 138.6 6.8 BULK ~.AMPL1 SAMPLE SYMBOLS q _ SAMPLING UNSUCCESSFUL 1:8'l_ OISTURBEO OR BAG SAMPLE I)_STANDARD PENETRATION TEST ,,_ CHUNK SAMPL:E • _ ORIVE SAMPLE (UNDISTURBED) ~ _ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING ORTRENCH LOCATION AND ATTHEOATEINOICATEO. ITISNOTWARRANTEOTO BE REPRESENTATIVEOFSUBSURFACECONDITIONSATOTHERLOCATIONSANDTIMES. 1 1 1 1 1 I. 1 I I I. 1 I I I I I I I I File No. D-4230-HOI November 11, 1988 :t I-Ii:z:W w-w C .... I-0 · I-2 _ - I-4 _ -'"" . f-12. · i-14. I-• I-16_ i-- I-22. · i-24. !"" - I-26. o z: W ..J Q. ::E ~ BORING 14 ELEVATION __ 2_4_5 ___ DATE' DRILLED,_·_10....;./_1_2.;.../8_8 __ SM EQUIPMENT __ ~E~-~1_0~0 __ 3_0_I!_R~o_t_a_r~y~B_u_c~k~e~t~ ________ ~ __ MATERIAL DESCRIPTION DELMAR FORMATION Dense, moist, light tan, Silty medium to coarse SANDSTONE, massive friable 1----1---roots CL Hard, moist, light-medium olive-green, very Sandy CLAYSTONE, fractured with rando~_slickensides surface _____ fractured on north side of hole, no continuous plane 1------becomes light gray and less fractured 1--_.---becomes dark gray "- 6 I- .1- l- I- I- I- 7 I- f- "- S l- I- ~ '" z:u: wcj Co: > IX: Q 119.4 14.3 ~ULK ~iAMPLE 119.0 14.4 Figure A-20, Log of Test Boring 14 BORING CONTINUED NEXT PAGE SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL Cl?J ._ OISTURBEO OR BAG SAMPle IJ_STANOARO PENETRATION TeST iJ _ CHUNK SAMP!:.:E • __ CRIVE SAMPle (UNOISTURee~1 ~ __ WATER TABLE OR SEEPAGE NOTe; THE LOG OF SUBSURFACE CONOITIONS SHOWN HEREON APPLleSONL YATTHESPECIFIC BORING ORTRENCH LOCATION ANO' ATTHEDATEINDICATEO.ITISNOTWARRANTEOTOBERePReseNTAnVEOFSUBSURFACECONOITIONSATOTHERLOCATIONSANOTIME5. I I I I I I I I I I I I I I I I I' I 1 File No. D-4230-HOl November 11, 1988 :l: ... tzw w-w C II. 30 - too · ~ 32. too · too 34. I-- I-36 _ too · I-38. l-· I-40. too 58. -60 tC ci >-w If) BORING 14 (CONTINUED ) z (!) ~ ~iii w 9 ~ ..Jc;j ..J 0 0uj ELEVATION DATE DRILLED Co z ::; i!: :;) ::!:;i ~ 0-()i :; If) (!) EQUIPMENT MATERIAL DESCRIPTION ~ CL .. , 0.·. . -... .. 1-_-:.> 1---becomes ·0.· '. more sandy . ........... :'.: :. 0:.; :':~ 1---- i-:){ CL-CH B14-s1 ;.~ ~f:'V:t :r; r-~> ~::;.: . 1-_-Ii,- Very hard, moist, medium olive-green, Silty CLAYSTONE U1t',"', -sandstone lenses with seep~ge I I rundulating contact, dipping approximately I I I ~ 50 at slope I I 1/ • SM Very dense, moist, orange-tan, Silty fine to medium SANDSTONE, fining upwards sequence .1-----(---becomes medium-grained, has "cannonball" concretion on N side of hole ML l- I- l- I- 13 119.5 13.6 l- I- l- I- ~ l- I- I- :1- I- 21/ .128.7 9.8 I-10 II too ~ULK S~LE l- I- l- I-- ~ l- I- I- -15/ 26.7 10.6 -711 ~ ~ I- I Figure A-21, Log of Test Boring 14 BORING CONTINUED NEXT PAGE SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL 181_ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST ~_CHUNK SAMPL·E • _ DRIVE SAMPLE (UNDISTURBEOI ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH l..OCATIONAND ATTHE DATE INDICATED.ITIS NOTWARRANTED'rO 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 File No. D-4230-H01 November 11. 1988 a: 0 )0-w Z : 0 t< J: , • .-UJ 0 ~ li:zUJ ... ... <l UJ-UJ D. % 5 :::0 c ... ::l: &"! ~ Cl 60 ~ ::~:.:j; :l::· ~ -I I B14-9 lX i-62 _ B14---t71 I ·f .. 64-. 11/ • 'I .. -,V V-I-66 • / V I--~/ .' I-68 • v / i-· l- I-70 \.-' l-· f-J ~ - ~ · .1--. i-- t-0 i-- I-- i-- --- t-· f-' · i- i-· -. - i-- til BORING 14 (CONTI1TUED) ~(ij -'u 10/1"2/88 uul ELEVATION DATE DRILLED ::!:::i 0-., EQUIPMENT MATERIAL DESCRIPTION Hard, moist, olive gree?-, Silty CLAYSTONE CL with shiny parting surfaces Hard, moist, gray blue. very clayey ML SILTSTONE with trace fine san~. fissile - i\ .. BORING TERMINATED AT 70.0 FEET . - Figure A-22. Log of Test Boring 14 ZUJ Out· ~ UJ# ~z ~~ a:..: a:;5", :::0% UJ(j ~~ 1-.,== UJ-O CIl: z., ... ~ °0 UJUJIIl ::E\.) 0. a: C t- """ 14 115.0 16.7 i-BULK E !AMPLE i- """ l- i- """ i-, i- i- ~ ~ .1- l- l- l- i- I- !o- !o- i-.. i- ... .. l- t- SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL . 181_ DISTURBED OR BAG SAMPLe (] _STANDARD PENETRATION TEST IiJ_CHUNK SAMPl.:e • _ DRive SAMPLe (UNDISTURBED) ~ •• WATER TABLe OR SeePAGe NOTE: THE LOG OFSUBSURFACECONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TReNCH LOCATION AND ATTHE DATE INDICATEo.1T IS NOTWARRANTeOTO ee REPRESENTATIVEOFS UBSURFACECONDITIONSATOTHERLOCATIONSANOTIMES. I I I I I I, I I I I I I I I I, I 1 I I File No. D-4230-H01 November 11, 198'8 :r f.. li:zw w-w Q ... BORI~G 15 ELEVATION'--__ 3_0..;,..5 ___ DATE DRILLED,_~1!...!.Ol..l./~1",,2...t../..Io!.8.1oZ.8 __ EQUIPMENT 30" Rotary Buq.ket I MATERIAL DESCRIPTION O~--~~~.,~ .. ~,~--+-----~-----------,----~----~--+-~--- 2 -:,:,~:,Z'::;:<: CL TOP~~;t slightly moist, brown, Sandy CLAY t- _ .. , . with SILT fractures ~ ............. : - 8- - t-10- - -12- - ~ 14- - CL-ML DELMAR FORMATION Hard, moist, light olive, Silty CLAYSTONE to very Clayey SILTSTONE 1------Bedding nearly horizontal '----__ Bedding N60W, SSW t-16 -B15-:2 ./ / ML' Hard, moist, light orange/olive-mottled, Clayey SILTSTONE; some very fine SAND -B15-3 -18-1/ 7 , ./ f Bedding nearly 'j:lO,rizontal ~~~-~~--'-4~----~----.--------,------IIAI CL ::Hard, moist, olive-mottled, Silty CLAYSTONE; ~ ; I yellow-white gypsum' stringers; slight to ~ ~:::a::e::a:::::::e_filled fractures; ~: ---V N40E. 85SE (joints) I I r-Cemented zone (calcium' carbonate cement -~l I about 12u,' fossil shells) 26-~I,. 1--. U' B15 4 ~tnl l' --> -r Remolded CLAY seam 1/8-1/4" thick,' -N60E -II v 1 __ - • I I I""'" 2 oS' I-28 -J~tl-'I_+-+_-..J-I--- I- _ B15-5 ~I f SM-De:t;lse, moist, light olive-tan Silty SC fine' to medium SANDSTONE~ some CLAY t-30-1 I ltV - - I-20- - -. - .~ ~ 3/12" 107.9 18.3 I- !- !- 3/12" 108.4 19.5 t- l- I- t- t- BULK .AMJ?Ll !-2/0" (No s unple: l- I- ... 3 ~18.2 13.8 - Figure A-23, Log of Test Boring 15 (Boring 15 Continued next page) SAMPLE SYMBOLS o _ SAMPL1NG UNSUCCESSFUL ' ~ _ DISTURBED OR BAG SAMPLE (] _ STANDARD PENETRATION TEST iJ _ CHUNK SAMPL-E • __ ORIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE:THE LOG OF SUBSURFAce CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHESPECIFIC BORING OR TRENCH LOCATION ANO ATTHEOATEINDICATEO,ITISNOTWARRANTEDTOBEREPRESENTATIVEOFSUBSURFACECONDITIONSATOTHERLOCATIONSANDTIMES. I I I I I I I I I I I I I I I I I I I File No. D-4230-HOI November 11, 1988 :r 0-1i:zw w-w Q .... I-32 roo - roo 34 - roo - roo 36 - roo. - ~ 38 d z w .. a. ::l: ~ --~15-6 -40' -10 p15-7 -' - -42 - -.. roo 44 .. ~ 46 - -- v: I I Yfvrrl' I I I 1 IVr rH{x I' I , 1 I , I I fo I Iy a: ~ ;: C z ::l 0 0:: C) -48 -vr I I-_18 15-8 I I ~ en BORING 15 (Continued) ~u; "'t) 10/12/88 t)uj ELEVATION DATE DRILLED :::I:;; 0-en 30'~ Rotary Bucket EQUIPMENT MATERIAL DESCRIPTION CL-Hard, moist, olive-brown mottled Silty, Sandy ML CLAYSTONE 1---I\.--Remolded CLAY se~ 1/8-1/4" thick; __ 1\ 3°SW; throughgoing gypsum CL ! \ ~------------------.-------------Hard, moist, medium-olive, silty CLAYSTONE; abundant gypsum seams; random fracturing ----1 \ \ SW L_ Remoded CLAY seam 1/8-3/4" thick; NlOW, 5°SW, throughgoing, with large crystals of gypsum within gouge Dense, moist, light. orange-tan, medium SANDSTONE \Ccontact nearly horizontal; ~harp CL-\ depositional . CH Hard, moist, da~k olive-brown mottled '-lith yellow, Silty CLAYSTONE; gypsum seams, random fracturing; fossiliferous and carbonaceous Br5-9 V: I-50 -I ----1\ I' ~ 'L_ ~ -: J-{". i-52 -::,r:,,:',j", -_ ':(1':,:', .. "' .. ,:,,--1:,,:: ':1', ',,-;", .... 0 ••• OJ ••• -54 -.. 8M I-56 - I-- .. 58 .. - -60 -.. Becomes very carbonaceous, '-~ flow \ r--Remolded CLAY LL2t contact. dark olive/black and seepages of slight to moderate seams 1/4.-1/2"; N20W,5°SW '-~ L ____________________ _ \ Very dense, dark gray, cemented, fine Silty SANDSTONE; fossiliferous l.-Cemented zone; CaC0 3+ BORING TE~~INATED AT 59 FEET (REFUSAL) Figure A-24, Log of Test Boring 15 -- ~ ~ I- ~ ~ ~ ---- .- ~ l- I- --- - - roo roo !"'" ... I--- 'z -o~t: ~z a:~ia t;;!!l~ zen ... ~~m - 5 4 ~ wl!! ~..: <t,.: :::lz W(j ... w CQ; !:'lz > °0 0:: ~t) C - 106.6 20.5 tBULK AMPLE 92.0 29.1 BULK '~.AMPL:E SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL ; t8l_ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST iJ _ CHUNK SAMPL-E • __ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHESPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITIS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONSATOTHER LOCATIONS AND TIMES. I I I I I I I I I I I I I I I I I I I File No. D-4230-H01 November 11, 1988 a: BORING 16 d >-~ co ;z: 9 tIl_ l: ... ~ <al W . d~ 300 10/13/88 Ii:;z:W ..J 0 ELEVATION DATE DRILLED W-W 0-;z: C ... :::; i: ::> =:i !f 0-US :. In EQUIF'MENT E-lOO, 30" Rotary Bucket " MATERIAL DESCRIPTION I-O~-----~~~-+-----+---------------------------------------------------------~~----+-----+-----'~~~:~:'~~~~~'S~~-+~ __ C_L'_'-~~TO~!~~~ humid, brown, Sandy CLAY, highly I-- I-2- I"" - -4- · .. ·I·:j·:.,::· \ fractured ." I I .. ;·(·~·f:I:) ~'........ L_ becomes very stiff and slightly moist ." .. ,'r" .--""".~~ -~ p~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- I-6- ~:,:J·:.IS ---h~ELMAR FORMATION :p.l' \1 Ver:y d~nse, humid, light gray-blue, very .:,:;,::1.< \\ fine SANDSTONE; iron-stained, carbonate, Silty - l- I-- I-8- I-- I-10 -B16-1 I--... I-12- I-- I-14- I-- I-16- I-- I-18- I-20 -B16-2 I-- I-22- I-- I-28- ~ - • • \1 w~athering at top .~,: :(1':. \l-shells :':':',1::1:: 'i'~ h. L bedding N20WlOS .\:(1': l,.--"'"I\ .·;r~: 1:'\: '--strongly ir~n-stained 1::r:I·.,:J.' -+---I----~~ __ ~~ ______ ~ _____ _ ""~J" ML hard, slightly moist, light grey-blue, 1/: '. '. ,', __ ...... Clayey SILSTONE, iron-stained, fissile, ,;. ::<:1-'!-1 __ ";>11. hematite filled joint N4SE82E . ,·v'··'.....-\ / \ .~' L_ /' / layer of stiff, moist, orange Sandy SILTY, friable, fossiliterous; N20W10S bottom contact v" V r--iron-stained, Sandy with fossils ' .. " ~~ ----~./ ':,: (:':'~-i-~ __ .j.J1 stiff, moist, orange-brown, ClayeY'SILT, V /' t1/ ;:-:;>-r\ fossiliterous, t---:>h '--cemented lenses __ -1\ I'::,i::'i:'; SM 1...-iron-stained,· fossiliterous, rip-~p clast :,:(:Y:'.I:': \ of grey-blue SILSTONE . 'I' ',:-1,' "....... L cour contact \,~t:I:.: '...>h . ':':':(::':: .. /"" 1\ very dense, humid, light tan, very Silty " ' fine SANDSTONE, iron-stained in places ':,: :(,:: --::>h' :'-!'."I~:'I';: -\L_ iron-stained :':':-.'1 ;:( l_ : :1::-1:: :: " :' :,1,' :.1':]::1': ",: ":' } I": ~J;':: :-1 :.: 0" \ ::" thinly bedded, dipping approximately 100 S iron-stained, lenses of friable, organic rich SILT with gypsum stringers I- r- I- I-PUSH 711' I-1 l- I- t- -l- I- r- l- I- r- 93.4 29.5 10 ~18.0 14.0 l- I- I- ~ Figure A-25 , Log of Test Boring 16 (Boring 16 continued ne~t page) SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL . ~ _ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST Iiiil_ CHUNK SAMPL'E • _ DRIVE SAMPLE (UNDISTURBEO) ~ _ WATER TABLE OR SEePAGE NOTE: THElOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH LOCATION AND ATTHEOATEINDICATED.ITIS NOT WARRANTED TO BEREPRESENTATIVEOFS UBSURFACECONDITIONSATOTHERLOCATIONSANDTIMES. I 1 I I I 1 I I 1 I I.: 1 I· I 1 1 1 I I File No. D-4230-H01 November 11. 1988 d >-~ Ul BORING 16 (Continued) z t!l ~ ~iii ::: I-0 10/13/88 ~£i~ w -' Q -'tj oJ 0 CJctl ELEVATION DATE DRILLED "-i: z =:;; Q "-::E ~ 0( ::; fi! 0- Ul Ul t!l EQUIPMENT MATERIAL DESCRIPTION ML to-30 ~ - ~ 32 - to-- I-34 - to-- ~36 - :~:=: m' :'~'L\\L scoured contact, generally horizontal rl:y' ... :::>~\ hard, slight moist to moist, light blue-grey ~~: I :: t----ll:.ndY SILSTONE I I 1\ . ff . . dd h b I I \1 very st~ ,mo~st, re is -rowu, Silty I 1,1 CLAYSTONE I--1\ IlL IY( 1,'- B16-SI,., '.. It many non-continuous remolded planes with I-38 _ :~n:: ~ m1 p g~sum., general orientation NSW7S B16-6 ~. ',,:.,:, llil 1-. ~I::I::I:: \1' .... 40 ··:,;;r,:,~: ~ f-continuous medium. stiff, very moist, grey remolded CLAY N30WSS I-- 1-42 • ~ - I-- I-- I-- ~ - I-- I-- I-- I-- ~ · ~ · l-· ~ - I-- -- I-- I-- IL-III I bec9mes:..::or.ga.p.ic ..rich, gyps;um and sulfur-rich I II I' I I I I I very dense, very moist, grey Silty medium SANDSTONE, slight seepage L-very strong cemented fine to BORING TERHINATED AT 40 FEET (REFUSAL) Figure A-26, Log of Test Boring 16 I- ~ ~ 1-. ~ l- I- ~ 'I- ~ l- I- l- I- ~ I- -- ~ I- 9 BULK SAMPLl 15 117.8. 15.1 BULK SAMPLI SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL t8J _ DISTURBED OR BAG SAMPLE .IJ_STANDARD PENETRATION TEST IiiJ _ CHUNK SAMPL:E .• __ CRIVE SAMPl.E (UNDISTURBEO) ~ __ WATER TABl.E OR SEEPAGE NOTE: THE l.OG OF SUBSURFACE CONOITIONS SHOWN HEREON APPl.IESONLY ATTHESPECIFICBORING OR TRENCH l.OCATIONANC ATTHE DATEINDICATED.ITIS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACECONOITIONSATOTHER l.OCATIONSAND TIMES. I I I I I I I I I I I I I I I I I I I File No. D-4230-H01 November 11, 1988 a: d >-~ z C) :: I-W 0 ;: ti:zW .... Q ..J 0 III-W c.. z o u. ::!l :r ::::> I-~ < ::; r/) C!! -0 V .' .' : . ; .. I--. :::/ o " • • •• I, I-2 -. ........ ", X:j:f· I--Et . . .. " . I-4 -. :( ... :,:: .:}I::, I--iS17-1 !J0 I-6 -:,'t,.: 1:',: I,:.~ I--':(:,J;Z: I-8 -'0' • '·{/i·:· ~: .. '" ~ -: .. " ".: " '. v. ,·,r·I~': 1-10-~;~:;I:: v:" . " I--·:~··i':I~; ... . ': ,: ': :,},f: I-12 -I, ..... ,," V'" I' •• '. I--. 'I " V1 .. '," . • " 0' .• I-14 -.... : .... :. I--'V; I-16 -/: . .' ",::' t •• ' I' I' '0 ' •• ..... " I--I, ,', • :'.1' <j,:-p-: ,:,::'. ;; : .. Ul SUi UU .... <4 -;j 0-Ul CL CL SM-, SC CL SC- BORING 17 6U1 . ~ w# 260 10/13/88 ;::~~ ~u: a:,.: ;jz ELEVATION DATE D.R1LLED «Ul ~~~ Wt) ~~ Co;-OZ E-100, 30" Rotary Bucket zC/) .... >-EQUIPMENT WWIt) a: :;8 Il.r:t C MATERIAL DESORIPTION TOPSOIL Soft ,. dry, dark brown Sandy CLAY I- \ I- DELMAR FORMATION Hard,. moist, light olive-brown mottled I- Sandy-Silty CLAYSTONE; abundant , ., gypsum I-6 111.2 17.1 I- I- l'Lcontact bedding N10E10NW I- I-Dense, moist, light tan-olive Silty-Clayey coarse SANDSTONE l- ~ ~ Hard, moist, light olive Sandy CLAYSTONE; i-- highly fractured, multiple oriented slickensided surfaces ~ ~ l- I--Dense, moist, light tan-orange Silty fine i--I--18 -B17-2 ~'<f.)": to medium SANDSTONE SM 9 124.5 11,9 ::I:.:I,:.~ -"" B17-3 I- :-(f' -20 -.... .,.-: ,'. I--: :'::"1:': ,:': SM Dense, moist, light tan-orange Silty fine -.' .. ~ -I' ,'" medium SANDSTONE I-",(",:'1:' to I-22 -., I',' I-: ,.' ," I' ,", I' ... -,:1:' t:, :' i-::({(: -24 -::'(:'j::( ... --:':i:,~//: - I-26 -::',": r'::i.::: - I--,:' j:',,::' :; I-~ ., "I,' I-28 -::\:\\:' 1-----bedding N40W, 9 oNE - •• _ I " • i--. , , .. -:j::' i:,:j:·: , ........ ". Figure A-27, Log of Test Bori~g 17 BORING CONTINUED NEXT PAGE SAMPLE'SYMBOLs 0_ SAMPl.ING UNSUCCESSFUL t8:1_ DISTURBED OR BAG SAMPLE I1_STANDARD PENETR,tinON TEST ~_CHUNK SAMPL-E • _ DRIVE SAMPl.E (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOGOF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORINGORTRENCH L.OCATIONAND A TTH E DATE INDICATED.ITISNOTWARRAN'I'ED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONSATO:rHER l.OCATIONS AND TIMES. ! I I I I I I I I I I I I I I I I I I. I File No. D~4230-H01 November 11, 1988 d :I: ... Z UJ Ii:zUJ .... UJ-UJ ll. o ... ~ IE a: BORING 17 (CONTINUED) >-UJ fII 0 !< "'-0 ~ <oS .... 0 .... 0 0 z oQj ELEVATION DATE DRILLED :t :::l ':!::j ,.. If 'Cl-::; .U) 0 EQUIPMENT MATERIAL DESCRIPTION ~ 30 . "'" . :':{v}-:: · .' .... 1----1--:--becomes moist to w.et ·.H;·I:. -32 - -- "'" 34 - -- ~ 36 - I-- I-38 - ,' .. ,. ,. · '. r.: I:: I>' :.:I·::r·:'!:: 1", .... ,..... , ::':·rl:·.: ...... >1---strong seepage .' . ''1-: ....... / ~.:I::.I::.~. CL ~~irregUlar contact;. remolded CLAY seam, :.:....... 1\ E-W, 8°N; throughgoing · .... ' . ':.',:." ~---f.':',':/ 1\ Hard" moist-wet, medium to dark-olive, .. V '::~ \ Sandy' CLAYSTONE SJ!.1 I-- · '... L ZUJ ~ UJlI' l '1 Sgt ' I ~u.: a:..: I «Ui ::::Jz ~~~ UJ(.) "'w I 00; !Q~ ZUl .... >-°0 &l!!Cl a: ~CJ 0 i- ... "'" - i- I-.. l- I- l- I-I-40 -B17-4 ~<.>.> \ ',:'.::.. -remolded CLAY seam 1/8-1/4" thick, N45E, .:,::':~'-!: 12°SE BULK 3AMPLI i"" -.r I-42 · , :;(:=: BORING TERMINATED AT 42 FEET ~ - l-.' I-- I--... -... - I-- I-- I-- ... . - - ---- I-- I-- I-- I-- Figure A-28, Log of Test Boring 17 SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL I2?J _ DISTURBED OR BAG SAMPLE IJ _STANDARD PENETRATION TEST ~ _ CHUNK SAMPL'E I- l- I- l- I- -. - l- i- l- I- i"" - i- t- l- I- I- • __ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTHESPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATEINDICATED.ITISNOTWARRANTEDTO BE REPRESENTATIVE OFSUBSURFACE CONDITIONSATOTHER LOCATIONS AND TIMES. 1 I I· I I I I I I 1 1 I I I I I I I I File No. D-4230-HOi November 11, 1988 :t ... tzw w-w Q ... I-0 ... - .... 2 - .... , - I-4 - ... - I-6 - .... - ...: 8 - I-- ... 10 - I-12 - ----- - -- I-- .... .... - l- I- - -- --- - -- c:i z W ..J 0.. ::; ~ CL SM. SM. TRENCH 1 ELEVATIONI __ 1_1_0 ____ DATE DRILLEDI __ --=.10=...:..../1::..:0::..:/...;:8:..::8~ JD§55 24" Track Backhoe EQUIPMENT MATERIAL DESCRIPTION COLLUVIUM Hard, slightly moist, dark gray, Silty 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 , 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 - .... I- ... .... .... l- t- SAMPLE SYMBOLS D _ SAMPLING UNSUCCESSFUL 1:81_ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST IiW _ CHUNK SAMPL.-E • _ DRIVE SAMPLE (UNDISTURBED) ~ _ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH LOCATION AND ATTHE DATE INDICATED. ITIS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTH ER LOCATIONS AND TIMES, • I I I I I I I I I I I I I I I I I I I File No. D-4230-HOl November II, 1988 II: ci > '" z CI !< J: I-'" 0 ;; Ii:z'" -' c .. 0 w-w II. z Q u. ::I; i: :::l ~ :;; If CI ~ 0 0' : .. -iff I--I<. •••••• _ 2 . , , ..... -~: :.:.:~ .:. .... -.0 .• '~ •••.. . r.:.:i!; _ 4 h/ -t/v ~ a ... -} "a// I-6 -' ~ 1./ 0 I--.. 0° • CI/' I-8. - , I-- I-- i--..t' ~ - I-- ~ . I-- 1-0 ~. :-: :.) • '0" ",', • I--.' .0-• V'" .. ' .... i-2 -• • • ' '0' '0···· . I--::. ::: :.) 0/ / - 4 ~/O -1(1. '" ~t?/ - 1-6 - i-- I-- l-'-... . I-- ~ - U) ~Cij -'u uClj :::!:;i 0-U) CL CL GC CL .- CL GC TRENCH 2 ELEVATION 275 DATE DRILLED 10/10/88 EQUIPMENT JD555 2411 Track Backhoe MATERIAL DESCRIPTION COLLUVIUM' Hard, damV, dark brown, Sandy CLAY and Santiago Peak boulders 1\ wEATHERED SANTIAGO PEAK. Very' firm, moist, brown; Sandy CLAY, with \ pieces of Santiago Peak SANTIAGO PEAK Excavates to very dense; damp, orange-tan, Clayey COBELES with some sarod·and boulders. Santiago Peak jointed with some surfaces dipping out of slope TRENCH TEBl:1INATED AT 7.5 FEET TRENCH 3 Elev. 245' COLLUVIUM ~ Hard, humid, gray, Sandy CLAY with some ~ntiagO Peak cobbles II Very stiff, very moist, dark brown, Sandy CLAY with some Santiago Peak cobbles SANTIAGO PEAK Excavates to very dense, moist, green and orange, Clayey COBBLES TRENCH TERMINATED AT 5. 0 FEET Figure A-30 Log of Tes·t Trenches 2 and 3 z'" Qut;; ~ ~u: ·~~cn ~E~ Wu Q~ zU)-I > WWQl a: Co a: Q i- - ... I- ~ l- I- l- I- ~ l- '1- l- '-- - i- i- -- - I- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL ~ _ DISTURBED OR BAG SAMPLE IJ""STANOARO PENETRATION TEST il_ CHUNK SAMPl.:E • __ ORIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SeePAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLYATTHESPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITlS NOTWARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS ATOTHER LOCA TlONSAND TI MES. ",lI' a:,..: :::lz liiw 5~ ~8 I I I I I I I I I I I I I I I I. 1 I I File No. D-4230-H01 November 11, 1988 :I: I-~zw w-w Q ... !-° I--_ 2 _ --_ 4 _ I-- I-6 I-- d z w oJ Q. ::E ~ TRENCH 4 ELEVATIO NI_---:;:2~1:;.;:.0 ____ DATE D RI LLE D_--"-1'-"0 ..... 1-"'1.;;...0'--!8;;..o8"--. _ JD555 24" Track Backhoe EQUIPMENT MATERIAL DESCRIPTION t"/II DELMAR FORMATION 1/ A/ ML Very firm, slightly moist, light gray- ~~~~~~_._~ green, Clayey SILTSTONE, fr~ctured ~i.:::i:::" L-___ . ____________ _ ~~I:.:IG~~ Very dense, humid, light gray-green, Silty "1, '.1., SM fine SANDSTONE iwht few fine to coarse ~(~'~~i; patches. Iron stained, with clay ~long ':I'::I;t.:F:', some joints I- I--1\ L-____________________________________ +-__ -+ __ ~~--- i- I- -- I-- .; 1-0 I-- I-2 - i-- ... 4 _ TRENCH TERMINATED AT 6.0 FEET TRENCH 5 Elev. 265 v:·:::' I---h COLLUVIUM" .' 'v:2 CL \ Very firm, ~~~~:~.~~:~~:~~·~·-+----~~b:::::. C::~ slightly moist, reddish brown, stiff and moist, with Santiago .', ~ . " .. I- l- I- l- I- I- ... - I-6 - t*<;~~~j CL Peak cobbles :. :':', .... :'i-. --f--_.--+' L.----------...:-:....-.--------------t---+--+-- : I ( CL I \' WEATHERED SANTIAGO PEAK . I.. _ :-B ---- i- - - - i"" - I-- "I} ill ·-~Lery Sti~f, moist, olive, Sandy CLAY \ Very firm, moist, olive-green and orange, Silty CLAY iwth little Santiago Peak . ~b_b_l_e ___ . ___________________ _ Very firm, moist, light greenish-gray, Clayey SILT with little fine s~nd, cobbles of Santiago Peak Volcanics TRENCH TERMINATED AT B.O FEET I Figure A-31 Log of Test Trenches 4 and 5 l- i- --- l- i- I- I- SAM PLE 'SYM SOLS o _ SAMPLING UNSUCCESSFUL t8l._ DISTURBED OR BAG SAMPLE IJ_STANDARD PE~ETRATION TEST iiJ _ CHUNK SAMPI.-E • _ DRIVE SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACECONDITIONSSHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITIS NOTWARRANTEDTOBE REPRESENTATIVE OFSUBSURFACECONDITIONSATOTHER LOCATIONS AND TIMES. I I I I I I I I I I I I I I I I I I I File No. D-4230-H01 November ii, 1988 c:i >-C!) z :r t-o b:zw w -' -' 0 UJ-UJ Q. J: C u. ::z t-~ :::; ~ 0 .. ;;. ... ~. bi:···· . ~ -'D.": .. ,. ~ · .1.7' : 4'-.' 2 · "'/." ~ -"'7,"Q' (Y." . IY-.... :~;.·O ~ -: ' ....... '," a: w !;( Ul Ul_ <CIl ~ -'c.J Z u Cil :> =::i o 0-a: Ul C!) GC-SC CL , TRENCH 6 Zw ~ w"l QuI;; 10/l1/88 ~..: a:..: 130 !;(~i3 ELEVATION DATE DRILLED ::lz ~!ii~ Wc.J ~}!! CQ; 24" ZUl-, >-OZ JD555 Track Backhoe ::;8 EQUIPMENT wWm 0:' Q.O: C MATERIAL DESCRIPTION FILL Loose. damp, orange-tan, Clayey SAND and I- BOULDERS I- I- Stiff, moist, olive-green, Silty CLAY I-I-4 -T6-1 ~ I I with small c:p.unks of unweathered Delmar 110.7 16.3 r--N~ l- I-6 . -I I I- ~ -be CL Stiff, moist, orange-brown, Sandy CLAY with I- some GRAVEL, chunks of Delmar & Eocene I-8 '. . -..... ' .. materials 1-' ' .. ,' '. I'·· '-. , -,','-,' .... I-r-1/7 11\ ML 1-110 -l/ I- -1/ ~' Stiff, moist, light, olive-green, Clayey l-I-SILT with little SAND, GRAVEL .r / I-12 -V l- v I--. · ~7r ~ .• I' " CL Stiff, moist, grey & green, Sandy CLAY I-14 -.: ... : .. l-., '.. ., '. '0 I, I--~Hr 1\ I-- ML ~ 16 -Stiff.to very stiff, moist, light olive-r- green with some grey, very Clayey SILT I--with little ,&AND and GRAVEL .... I-18 , l- I--l- I-20 -\ TRENCH TERMINATED AT 18 FEET I--" I- ~ . l- I--l- I--I- ~ -I- r--l- I--l- I--I- I--I- Figure A-32, Log of Test Trench 6 SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL I:8'J _ DISTURBED OR BAG SAMPLE I)_STANDARD PENETRATION TEST iI_ CHUNK SAMPL-E 1_ DRIVE SAMPLE (UNDISTURBEDI ~ __ WATER TABLE OR SEEPAGE NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHE SPECIFIC BORING OR TRENCH i-OCATION AND ATTHE DATE INDICATED.ITIS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONSANO TIMES. ...---- , i I I I I I I I I I I .. 1 I I.: .. I I I I I I File No. D-4230-H01 November 11, 1988 a: 6 )-w Z 0 !< :x: 0 ;: b:zlu w -J 0 ..J a z w-w ... j: ::> Q ... :< .@ < :::; VI Cl 0 , i-V··· ..... .. • 4 0 "._ i--· ....... .. , .. P.0 2 • .... ", .. i-" -: ......... :' · e. ". ' .• I--',:':,) I-4 -....... "' .. ".. . :~I .... ' 1 1 I-,': ~ -:::' I-6 • :: .. !',:!': ,.' / '. o,';:,Q: I--~.(.:? .... ' .• ""Qo. I-8 -'.'::.:"10~~ ~l l-· , I~el . I-10 • .~ i-· .... I 11/ I-12 • ~i:,: I--:'(r'r- f-14 • · ··r:L'· .' l-· · ':'=:1:/' VI ~u; .... u uu:! ==.) o-VI CL CL GC-SC GC-CL .~ :::~ 1----- I-16 • ..4O tJ" 0"' a·.I:·. ::'f~ 1-. .... '. I-18 - ,.. - .. 20 - .---- I-- I-- f-- I---. -. i-- TRENCH 7 ELEVATION 125 DATE DRILLED 10/11/88 EQUIPMENT JD555 2411 Track Backhoe MATERIAL DESCRIPTION FILL firm to hard, slightly moist, Very tan, very. Sandy CLAY with pieces of wire, plastic bags, concrete ~edium stiff, very moist, light green, Silty 1\ CLAY with little GRAVEL, . :S:AND . L Dense, slightly moist, brown, Clayey SAND and GRAVEL \ Very stiff, moist, light green ... with ,:broWn, Silty CLAY and GRAVEL Very stiff, moist, light green, . Silty CLAY, highly fractured with SAND - --Becomes blue-green and. with GRAVEL TRENCH TERMINATED AT 17 FEET - Figure A-33, Log of Test Trench 7 Zw Qut: ~ i!cn ~.,; ... ",l: wu Qa: w-a ZUl..,j )-UJWQl a: Q.a: Q - ~ ~ ~ ~ ~ - l- ~ ~ ~ ~ l- ~ .- ~ ~ I- I- ... - I- - - l- l- I- f- l- I-- SAMPLE SYMBOLS 0_ SAMPLING UNSUCCeSSFUL I8J _ DISTURBeD OR BAG SAMPLe '1] _STANDARD PeNeTRATION TeST IW _ CHUNK SAMP!.:E • _ DRIVE SAMPLE (UNDISTURBeDI ~ __ WATER TABLE OR SEEPAGE NOTE. THE LOG OF SUBSURFACE CONDITIONS SHOWN HeREON APPLIES ONLY ATTHE SPECIFICaORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITlS NOTWARRANTED TO aE REPRESENTATIVE OF suaSURFACECONDITIONSATOTHER LDCATIONSAND TIMES. wi!! a:,.: ::>z "'w VI ... ~8 I I I I I I I I I I I I I I I I I I. I File NO. D-4230-H01 November 11, 1988 a: d >-~ Z C!l :z: ... w 9 ;: !i:z'" .... 0 C "'-'" a. z c u. :lE E ::;) < If U> .... C!l TRENCH 8 U> ~ii1 .... u (.lct\ =::i 135 10/11/88 ELEVATION DATE DRILLED 0-00 EQUIPMENT JD55~ 24" Track Backhoe MATERIAL DESCRIPTION GC-CL' FILL SC Hard, damp, or'ange-brown, Sandy CLAY and GRAVEL Medium dense, moist, tan, very Clayey, fine to medium SAND with,some GRAVEL, lenses of black organic material 1------Becomes grey-bl~e SM._ CL \ Medium 'dense, moist, yellow-tan, Silty, fine to medium SAND.:with some SILT, lenses of black organic material ~------------------------------ 1----Ii \ \ Stiff, very moist, grey, Gravelly CLAY with lenses of black organic material ~---+~~~~--~\ I\L-Becomes grey-blue -18 -TRENCH TEBMINATED AT 16~-,FEET I-- I-20 - I-- - --- -- I-- l-. ... - I-- ~ - I Figure A-34, Log of Test Trench 8 . 6'" . ~ w' ):~~ ~..: a: ..... ~~'" ::;)z ... ",:: W(j ~~ w-o Co; zoo .... >-OZ wWIll a: :lEg a. a: c i- ~ ~ ~ ~ ~ 111.0 15.C I-BULK SAMPLJ I- ~ ... - ~ .~ l- I-- - I- ~ l- i--- - ~ l- I- ~ SAMPLE SYMBOLS o _ SAMPLING UNsucceSSFUL . ~ _ DISTURBEC OR BAG SAMPLE (] _STANDARD PENETRATION TEST IiJ _ CHUNK SAMPL-e • _ ORIVE SAMPLe (UNDISTURBEO) ~ __ WATER TABLE OR SEEPAGE NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIESONL Y ATTHE SPECIFIC BORING ORTRENCH I.OCATIONAND A TTH E DATE INDICATED.ITIS 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 I I I File NO. D-4230-H01 November 11, 1988 ::r: .... b:zw w-w Q ... ~ a !-- I-2 - I-- ~ 4 - ~ - ~ 6 - ~ - ~ 8 · l-· !-10 - !--.., ~ 12 · ~ · ~ 14 · ~ - I-16 - ~ - ~18 - f-· to-20~ '" ~ - ~ - I-- !-- I-- ~ - I-- l-· I-- d z w -' Q. :::; < III >-§ o ~ :; IP.~: .:~:~. : :.~ .::::.';? ",' J' •• (',, o •. /. .. .~ /::0'" I: • ..r.:··.· pC TRENCH 9 ELEVATION EQUIPMENT FILL 135 DATE DRILLED 10/ll/88 JD555 24" Track Backhoe MATERIAL DESCRIPTION Loose, humid, tan, Clayey SAND with GRAVEL Very firm, moist, tan and,bl~e~green, Clayey SILT with chunks of CLAY, SAND, organic material CL Stiff, very moist, blue-green and black, Silty CLAY SC 'I \1-___________ . ___________ _ Very firm, moist, blue-green, Clayey SAND with pebbles,.arid chunks of organic material ~:~' .. " .......... / r----h Po~;? :~.:. I \ ~---~~~~~-----~\ I y--B·ecomes more Sandy TRENCH TERMINATED AT 16~ FEET Figure A-35, Log of Test Trench 9 l- I- l- I- I- ~ ~ ~ - 0 I- !- ~ I- ~ -, ~ - l- I- I- ~ !- l- I- -.. l- I- SAMPLE SYMBOLS 0_ SAMPLING UNSUCCESSFUL t8'l_ DISTURBED OR BAG SAMPLe IJ_ STANDARD PENETRATION TEST IiJ_CHUNK SAMPL-E • _ ORIVE SAMPL.E (UNDISTURBED) ~ _ WATER TABL.E OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONL Y ATTH E SPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATED.ITIS NOTWARRANTED 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 I I File No. D-4230-H01 November 11, 1988 ci ::I: >-2: w 6:z w ..J w-W· Q. Q ... ::; < UJ t-O ~ - ~ 2 _ ~ · ~ 4 .: ~ · I-6 - I-- ~ 8 - ~ · I-10 - I-- ..t' I-12 - ~ - I-14 - ~ · I-16 -· -· I-- I-- I-- I-- I-- I-- I-- I-- I-- I-- I-- SM CL 1\ TRENCH 10 ELEVATION EQUIPMENT 175 DATE DRILLED,_~1.lL0f.-.,/1b.l<Qu.t.!.!.88!.l.-_ , JD555 2411 Track Backhoe MATERIAL DESCRIPTION ALLUVIUM Loose, moist, dark brown, Silty fine SAND, roots, voids Soft, saturated, medium brown, Sandy CLAY TRENCH TERMINATED. AT 16.0 FEET 0 Figure A-36, Log of Test Trench 10 . l- I- l- I- l- I- l- I- l- I- l- I- l- I- l- I- l- I- l- I- l- I- l- I- i- l- I- I- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL t8l_ DISTURBED OR BAG SAMPLE • IJ _ STANDARD PSNETRA nON TEST '1_ CHUNK SA~PL-E • _ DRive SAMPLE (UNDISTURBED) f --WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIESONL Y ATTHE SPECIFICBORING OR TRENCH LOCATION AND ATTHE DATE INDICATED. ITIS NOTWARRANTEDTO BE REPRESENTATIVE OF SUBSURFACECONDITIONSATOTHERLOCATIONSANDTIME5. I I. I I I I I I I I I I I I I I I I I File No. D-4230-H01 November~ll, 1988 ° "" I-• I-2 _ ~ . I-4. · I-6 • o z W ..I Q. ::0 U3 -Tll-l~:-:.::" ~ 8 _ II" , .. · ' ... " .. ,., V·:':··:·'::~ ~ I-10. I-· I-12. · ' .... , .' ........ " . V::',,::,'·;/· .0, .: ... · .... CL CL TRENCH 11 ELEVATION~ __ 1_2~5' ___ DATE DRILLED,_..::;:1..:..0!...;/ 1:...:0~/-=8..:..8 __ JD555 24" Track Backhoe EQUIPMENT MATERIAL DESCRIPTION ALLUVIUM Soft, moist, dark brown, Sandy CLAY Stiff, moist to wet, medium light brown, Sandy CLAY Zw Qut:: !:(~0 ~@~ ZUl..l wWIll Q.~ l- I- l- I- l- I- I- 06.2 - l- I- ~ .~ 1-. :.:,'::./ I-14. ',', ." :'.,f. --i----f----------------:----------I-. : 16+ • __ -T~_'.t_.;:~ ... :l;~::~~:!'i_+_-s-C-.., ~=eS~ist to wet, light brown-tan, Clayey": , 1\ . .... - I- ~ ~ ~ i- I- ~ - - - · · · · · ... . \ TRENCH TERMINATED AT 16.0 FEET Figure A-37, Log of Test Trench 11 l- I- I- l- I- l- I- ~ ~L£: W(j Qa; > ~ Q I 14.7 - SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL !8l_ DISTURBED OR BAG SAMPI.E IJ_STANDARD PENETRATION TEST iI_ CHUNK SAMPI.-E • _ CRIVE SAMPLE (UNDISTUJ:lBED) f _. WATER TA6l.E OR SEEPAGE NOTE: THE I.OG OF SUBSURFACE CONDITIONS SHOWN HEREON APPI.IESONI. v ATTHESPECIFIC BORING OR TRENCH LOCATION AND ATTHE DATE INDICATED,ITIS NOTWARRANTEDTO BE REPRESENTATIVE OFSUBSURFACECONDITIONSATOTHER I.OCATIONSANC TIMES. wll' ~,.: :Jz ~~ 02: ::oS I· I I I I I I I I I I I I I I I I File No. D-4230-H01 November 11, 1988 a: 12 d >-W til TRENCH ZW Z 9 !< ~Ui Qut;; ?: :c :: 110 S:ztii w ..Jo i~cn ~u: ..J 0 10/11/88 0 z UCt.! ELEVATION DATE DRILLED w-w 0.. l!l~' C IL ::E ;: :J =~ .... tIl~ ~ :; ~ 0-w-o CI) JD555 24" Track Backhoe ztIl..J >- t!l EQUIPMENT ww", a: 0.. a: 0 a MATERIAL DESCRIPTION ~ V···· .... ' ... :. ALLUVIUM ~ -b? .1- 2 _ CL Soft, .. mois:t,. dark broW?-, Sandy ~LA.Y· ~ ....... l- f ': • '" °0 ~ -. I' ',f,. l-I • f .. V 4 _ ..... I-',: ..... :. "- I--',.'0: ..... : .1-I .... kG .... 6 • •••• or' ... .... '::':':.:, .: I--• ".' 'I -----becomes wet -)S "-8 • "I ·0, ••• -'. . I •• I -. ~ , - -10_ o 0,' • -I" '. I', ' • • • • o' I' Of • -..; ::,:::0 - 12_ // ---strong seepage l-I •• ' _ l-... ;: ::.:: Iy L,.-/ I--':i:J':v:' Loose, saturate~" light brown, Sili:y.~ine i- , :!::!; :!~'.: -14. ::1:: !':J.: SAND -1-' '. : .... ' .. ... .',I,~f' .. 1: : I- -16 _ \ TRENCH TERMINATED AT 15'-0 FEET ------ :--l- i--i-- "--l- I--l- ... i---I--. I--- .... -l- I-.;. l- I--l- I--I- Figure A-38, Log of Test Trench 12 . SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL ~ __ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION reST il_ CHUNK SAMP~E • _ CRlve SAMPLE (UNDISTURBED) ~ __ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY ATTHESPECIFICBORING OR TRENCH L.OCATION AND ATTHEDATE INDICATED. ITISNOTWARRANTED TO eE REPREseNTATIvE OF SUBSURFACECONDITIONSATOTHERI.OCATIONSANDTIMes. wI!! a:,..: ::lZ ~~ OZ ~8 1 I I I I I, I I I I I I .. : I I I, I I I· File No. D-4Z30-HOl November 11, 1988 J: ~ b:z w w-w C ... 0 - I---,2 _ -- ... 4 _ I-- ~ 6 _ I-- I- 8 _ I-- I-10 I--~ I-- I-- ... - I-- ... --... -- I-- I-- I-- '-- I-- l-. I-- -- I-- ~ - I-- c:l Z w ..J a. ~ < UI , " .Y· .... vy"::':" ::. ••• 1 •• • : : •• 0 •• , · . ' .. · .. P'" · '. • '. I '. . . .. '. ' .. ,0., •• . , .. , .. v···· f °0 .' 1'0 °0 ° 0 \ · " '. . .::.":/:':". .. .... :·'1 ... ':: .: ..... : .... · .. ' . >::: .:: -: ~'.: • °0:: 0.: :: :" TRENCH 13 ELEVATIONI __ 1_O_O ____ DATE DRI LLED, __ ----'-'l OI.Ll-/1u'l'-l-I...Q8l,1;lS,-", ' EQUIPMENT JD555 Track Backhoe MATERIAL DESCRIPTION ALLUVIUM CL Soft, wet, dark brown, Sandy ~LAY _~ very ~trong seepage; filled to. 8 1 in'less ,/' than 2 minutes ,,/' SW 1\ \ Loose, saturated, light brown. fine to. coarse SAND, friable TRENCH TERMINATED AT 10.0' (REFUSAL) Figure A-39, Log of Test Trench 13 I- - -- - l- I- I- ~ l- I- ------ l- I- roo I- ... l- I- - - ... - SAMPLE SYMBOLS o _ SAMPLING UNS~CCESSFUL ~ _ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST IiJ_CHUNK SAMPL-E • _ DRive SAMPLe (UNDISTURBED) ~ _ WATER TABLE OR SEEPAGE NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONLY A'l'THE SPECIFIC BORING OR TRENCH L.OCATION AND AT,THE DATE INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTH ER LOCATIONS AND TIMES. . I I I I I I I I I I I I I I I I I I File No. D-4230-H01 November 11, 1988 a: d ,. W '" Z t!) \( ~iii :r I-w 0 ~ -'(j b:zw -' ...J 0 Uuj W-W II. z Q u. :::E E ::l :!:::; If 0-« ..J '" .", t!) _ 0 :.. - _ 2 _ SM-SP --_ 4 _ I--SM ... 6 _ ~ - ~ 8 _ ... - i-10_ -- _ 14_ 8M-SP· - - I-- - to-• - - -- I TRENCH 14 ELEVATION 170 DATE DRILLED 1'0[11[88 EQUIPMENT JD555 24" Track Backhoe MATERIAL DESCRIPTION ALLUVIUM Loose, damp, light brown-tan, slightly Silty fine SAND Medium dense, moist, light brown, Silty fine SAND, roots, voids, blocky ~1edium dense to dense, moist, tan, slightly Silty fine SAND TRENCH TERMINATED AT 18.0 FEET Figure A-40, Log of Test Trench 14 zw ~ Qut:: i~cn ~u: t-Cf.ll: W(j w-o Ca; z"'...J .,. wW'" a: ... e:: Q ~ !"" ~ ~ !"" ~ ~ ~ - I- ~ --- - - - - I- ~ .:.. -- -- --- SAMPLE SYMBOLS o _ SAMPLING UNSUCCESSFUL t8l_ DISTURBED OR BAG SAMPLE IJ_STANDARD PENETRATION TEST IW_CHUNK SAMPL·E • _ DRIVE SAMPLE (UNOISTURBEO) ~ __ WATER TABLE OR SEEPAGE NOTE; THE LOG OF SUBSURFACE CONDITIONS SHOWN HEREON APPLIES ONI. Y ATTHE SPECIFIC BORING OR TRENCH I.,OCATION AND ATTHE DATE INDICATED. IT IS NOTWARRANTEDTO BE REPRESENTATIVEOF SUBSURFACE CONDITIONS AT OTHER I.OCATIONSAND TIMES. wi!! a: .... =>z "'w !!l~ 00 ==1.) ! fRICTION RESISTRNCE TSFlKG/CHI) CONE RESISTRNCE TSF(KG/CHI, 6 • 2 I !O UO 1 0 2 0 2! 0 9 0 o _. o , 'l~!.oo f 0 I 2 3 , 5 6 ., e 9 10 U 12 19 l. 15 ,8 11 0 I'll "1118 ;! ZUI 0:Z ~20 I'll :u lJ)21 1.1. 23 2' 26 27 28 00 I'll "11 o 5 10 15 20 25 so a5 .0 .5 50 55 ~ 80 .... z ~ as I'll -t ·r;.:1~ ;;''''~b' 15 ,0 ,5 ,0 28~ 85 so 100 !U S2 -I 1 CIS p I=- .~--.. - <) I; 11 1= ,.. 0 p r It ~o ~ I~ ) ) > I I } .~ .. ~ ~ ~. -~ r i j . , I I ! . , • 0 o 0 , -------- .... -.~.~ _. ... -.... 00-0_---r-;I~1 . -UIj ! 0 S6 120 81 3a" 125 6 rROJECTI LA COSTA RANCH NW PROJECT NUMBER-89-230-1702 INSTRUMENT NUMBERIF15CKE088 DATE I 10-05-01988 r~ I=-..::r::=:: I-=s- <; r~ :/ ?, 5:- -. __ 0- -0 ._-- -0-0 ---~-----~---- l!!!!i:!! 'hI forth "ChnDIDgl/ --CDrporatlDn 0- 9 a .. SOl L COLUMN a fRICTION RATIO l~) 'l-...L' , . ~ Ii L( " ~ ~ ~ ~ o 10 --I-I ~ -,. ~ .-::::::t=-~ ~ -== .----::=- ~ ~ I~ -=:. 1 :e:::::: --=::: -...:::: --" I <;;: _I "5 I ~ - .0- f t I - I I I I /' - I-I I-- r f T I l- i-I J i I~ -, ~----f -0-0 -.-'_0- f I f' I l-I -0 jl: 20 1 I I ..... -t 1 25 ~oo B C~NE PENETROMETER TEST PROBE : CP.T~' - - - - -'-- - - - - - - - - --. -,- 0.., 0 1 5 2 s-t 10 .. 15 5 ~ 6 ~2D , "1J "1J '-I -I :r: 7 :x ~ ~~ ::£ 8 ...q '"" rtI -I rtI g: 9 -tS en 10 D 11 12 " 19 ~" " 15 5 · · · · fRICTION RESISTRNCE a 6 " 2 t ,! 0 ~ .) V -~ I? ~ ?= ~ ~" --~ f <:: LI ~ l::=-.e::::: r> Ii t ~ ~ ~ I~ ~ ~ !==- ooc:::::: ~ .~ ~ . . ~ ~ ~ I- ~ 6 PROJECT_ LA COSTA RANCH NW PROJECT NUMBER:89-230~1702 INSTRUMENT NUMBER: F1SCKE088 DATE: 10-05-1988 110 I , """ . CONE ftESISTRNCE TSFlKGJCHI) 210 1! 0 2 D . . at D t The Earth Technoloug -CDrpDral Ion a D ~"I .. SOIL COLUHN ~(;O [ fft 1 ClI ON RRlI 0 (I. ) . : . I I ::? <: -= ~ ..:::::::s:--= ~ -~ -~ ~r ..= = -;;; ~ ~ ~ ==----..;: !; ~ ......;;;;". -::;;s::: ~ ~ ..:::::s ~ , .,:>- ~ r=- oe::;.. 1=:::-' ~ = . . . I , 1 1 .. -" .. .. o '"'" ," 5 i o i 5 ~ .. o B o 1 2 s • 5 O[ 6° ~ ~ -t -t ::x: '1::X: ~ ;z: ." rra rtI -I .... ' ;z: 8::£ rra -t rra 9::D tn 10 11 12 15 u 15 CONE' PENETRDMETER TEST .. PAClBE: CPT::-2 - - - - - --. - --.-- - - - - - - - fRICTIDN RESISTANCE TSf lKG/CHiI ) CONE RESISTRNCE T5FlKG/CHZ ) 0, 0 B • 2 I ! 0 l( O~ P o . 2[ 0 2 0 310 1 5 lD 15 ~20 "ll -I X .... -j .... 25 z z~ :J: 8 -q fTI fTI -t fTI gJ 9 -is III 10 Q 11 12 .. IS " 1. 15 5 s: ,( ~ . -= ~ I~ ~ t--.----<§ ~ ~ ~ 6 i.) -> l---5 t I'( 15 \ ij L 2 ~ ;t ~ L I- ~ i-. ..! ~ f:::-p.. . 5 ~ '-...: ~ c. po. .,.;; !=-. . . . . PROJECT; ~A COSTA RANCH NW PROJECT NUMBER: 89-230-1702 INSTRUMENT NUMBER: F1SCKE088 DRTE: 10-05-1988 ' , . . t , The forth Technoloug ... CDrporatlDn ' 3: D," ,. . . SOIL CDLUH" ' ~(lO FIUClleN RRTIO (%) ~ ~ 1 2 .. il o 1 2 s " 5 DC 6 c ~ !3 -t -t :J: '1 :r: 5~ ;' .,.. 8:.: ,.., m ,.., -t 0"" 9~ UI 10 5 1 o 12 1:1 5 a o 15 CONE' fENETHDHETEH TEST PRrJBE: CPT-:-3 . ,,<Jt"1 fill eTl ON RAll C 00 fRICTION RESISTANCE TSf(KG/CMiJ CONE RESISTANCE T5f(KG/CMI) 6 ... 2 -I ! 0 11 0 1 0 2 0 . 2! 0 9 0 9l 0 4( SOIL COL.UMN o 0 1 2 3 , 5 6 '7 8 9 " 10 Ll 12 13 U ~5 18 17 c rrt ~18 Q 5 10 -15 20 25 . aD c:J rrt .,. a5 40 .. 5 50 55 .~ r~ ~f . r ) 1~ ~) ~'~b . '. 1'.-5 Ji~ ~,>= ~ ( ~ 1 I J ? i-t---F I . :c ~18 I ~20 ~ 110 .... z ~ 85 I . ~ I .. ~4 . .... .':" .' t ••• • ,.;' . ' . . :., ....... .' . . '. rrt I au I '.,~1:r~t '~w', :.' ,~~t<:, :~ 22 rrt . ""1 ~ .,~ .. ~"1';'/:C 23 '75 2" 110 ·25 26 8$ 27 ,,0 28 2S.f . 85 30 100 s~ ~~i ~D!J aa . , . • 110 a.c--L __ . ---. ----. ·-----:1--1--__ . . . . ·----... :7r~~i.-I" ( . as .;; . I 120 • .' . ... :1'1 . 88-U5 6 r"OJECTI LA COSTA RANCH NW PROJfCT NUMBER-89-230-1702 INSTRUMENT NUMBER1 F15CKE088 OATEI 10-06-1988 ~ The forth '.eMa/Dgg iiiiii CorporatIon ~DD 20 25 o CONE PENETRn~ETER TEST PRClBE: tP.T~4 -------------~----- 0, 0 1 5 2 s; 10 " 15 5 c 6]020 I'll I'll "11 "11 -t -t :C"1 :c t-t % X 8 I'll -t g: 8 (II lD u l2 ~25 -.1 I'll m -iao 35 .. · · · fRICTION RESISTANCE T5f lKG/CWI J 6 " 2 • t .! 0 1£0 t-) -~ (> ( J { 2 ~ -~ 1 ) ;; '?= I~ c po. :> J::=-. <; .8 00: ~ ~ , u .. . · . -. 15 5 6 PRDJECT; LA:-COSTA--RANCHNW PRDJECT NUMBER: 89-230-1702 INSTRUMENT NUMBER: F15CKE088 DATE: 10-06-1998 . CONE RESISTANCE TSF1KG/CH2) SOIL COLUHN fRICTION flATU'J I~O 1 0 2( 0 2! 0 !I 0 9 D. .&11 . . . .. , . . " Tht Earth Tlchnologg . -CDrpDral Ion o 1 2 o r S ~ , 400 5 dc r:: -t :c .... 5:z o 5 o i 5 a a "TJ rrt ,... -t CONE' PENETROMETER TEST PA~BE: CPT .... 5 • 5 6~ "11 -t '1:t! ..... :z: 8x rrt -t rrt 9::D U) 10 11 12 IS " 15 ----------------.--- fRICTION RESISTRNCE . T5f IKG/CHa I 6 ·t·· -·2 -t ~ 0 110 0... 0 1 5 -' ~ ~ - 2 ,0 ,5 ~2Q "'11 .... ::c z r' :c 8 ,.. III f11 ..... m e 9 .... ~ 10 3 H 12 " 19 14 " 15 5 < S- ~ 6 J ? ~ [" v· 1 r k:::::? ~ ~ -; g s:: ~ =- ::... <!: ~ b . . . . PRHJECT;LA COSTA RANCH NW PROJECT NUMBER: 89-230-1702 INSTRUMENT NUMBER: FlSCKE088 nQTI::·~ 10-06":"1988 CONE RESISTANCE TSf (KG/CHi) 1 o· . 2( 0 2 a . a 0 En! Thl Earth Technology -Corporation 3! 0, 4. I - SOIL COLUHN 400 "C fRICTION RRTIO lr.l , f I o I~ 1 F--2· Ie --==::::= 1 a 1""3 ...c:: .c::- J ~ ::;;;: ;j" . 1 ... .. -'" .. ... .. i .. .. 5 5 0° ~ 6~ -t ;c 7 ""U -t :c ..... 5% .... :z tTl trI ...... ~ 8::1: .... -t o -t 9 ~ CJ) 10 5 11 o 12 19 5 u -'" w o il 15 CONE PENETROMETER TEST PRrlBE: CPT:::",6 - - - - - - - - - - - - - --. - - - - fRICTION RESISTRNCE T5f(KG/CHaJ B " 2 I !O 1 a CONE RESISTANCE TSflKG/CH3) l' 0 210 2 0 31 a 3~ a 41 St'lIl COLUMN o fRICTIl'lN RATIO (X) :~ 0 ~ -? ~ j j j .... ~ OrO 5 2 '< h I{ > -?r ::: ' ~ 1 5 2 :1 10 === 1 ----f----l-~ 1----: = \" ~ o t" 3 15 5 ~6 °20 fI1. "'Q "'Q -t -t :c 1 :x: ...... ~25 :z :&:8 ,. fI1 rt1 -I rrt ~ 9 -tso en I( ? t- J ~ l~ ,r ~-L 10 -95 11 12 ~ "'0 19 "'5 it r---. - 15 50 . . 6 r:;;.. <-r? V p 400 l~l , ==1:2::._ -, =====: L =:2 =-r-. =- 5 ~r: 1-.~ ..... /TI ttl I ~ -t:' a-t 5 -=--t'5: -=== -.----t-~ -i I . 0 1--1--+-1 , Ii 5 I -+ +s 0 a PRDJECT; LA COSTA RANCH NW caNE PENETflOMETEfI TEST I PRDJECT NUMBER: 89-,230-1702 ti • The Earth Technologg PArJBE· CPT':'7 INSTRUMENT NUMBER: F15CKE088 , _ Corporation • DATE: 10-06-1988 • 5 SO /TI --0 -t 7:1: .... . :a:: 8:z fTI -t 9; en 11~ 11 r' 19 U 15 --------""!""._. ---, / .' , "'-:'1 ~,,-,:,,<;,~~_..: _____________ _ , -"$'!"'"~:''' ,<,'-:: A. ,';!f.i\.!;;1,\~'" - - ,-~ '~~~i~t ______________________________ ~ __________________________________________________________ ~l ! ~ ~ ...... ~ ..... ;i ~~.\'l:!i;. ~~~'*}'\. " , 1 o fRlillON RE5ISTRNCE \f015f lKG/CHJ J B --L .' _ .2 _ t o. · · (J 2 5. • • (11 9 ------I 10 I -I " 15 5 ~ 6 ~20- " " -of -of :x 7 :c .... ...... :z 225 50 100 CCINE RESISTANCE T5flKG/CHJ) 150 ~OO 2So ~oo 350 ",00 :x B -:q m m j------1-----~~~~~~:=t------t----_t------t_----li----_t------r_--~ .... fTI m 9 -fSO en 10; 1-----l-----+-=~~.-J~~~--_t----1_----i_----t_----t_----r_--~ 95 11 12 19 u SaIL CClLUHti 1-~~-L~~~~~~~~-r~~rT~~~~~~~"rrTi~rT~~"rr~-rTTI400 15 6 [ fRICTION RRTH) (%) • f --. ~ }= .2 ~ ~ O?--~ ~~ .d. .::: -.~ = I-.:-=-'= ,~ ;;., ~ ~ ..-;- ~ =-r-,... <::..,... !: .::s;: . 1 1 2 5 D° ~ -i :x .... -... 5:z o .. ' I~ :s " o " 5 ~, o a ..... f11 IT! .... rADJECT:~~ ~uSST~A~R~A~NrrC~RINNWW------""""""""--~--""""--------""""---- PROJECT NUMBER. 89-230-1702 C ' . -It. . I I NSTRUr,ENJ NUMBER, F 15CKE088 h J Th. £flI'th T.elmDlDgy aN E .. E N I; T. R II HE T E R T EST ... nlITE. 0-6-]998 -CorporDtlDn PRClBE: CPT-8 o 1 2 3 • 5 6~ " -i 1:X -' :I: 83: IT! -i f11 9:JJ U) o 11 12 IS u 15 ~ - - - - - - - - - - - - - - - --.-.... - :1 0 5 2 :1 10 15 5 ~ B ~20 '"'Q '"'Q -i -I x, :t: ..... ~2S z ::1:8 '"11 nt nt -i nt ~ 9 -ISO en 10 I 95 11 121 40 19 45 " IS 50 FRICTION RESISTRNCE T5FlKG/CH2J Cc:!NE AESISTRNCE TSflKG/CH2) SOIL COLUMN 6' " 2 , • ! 0 UO 1 o 2(0 20 S(O 90 "I( .~ -~ \ .' II ... ~ (. rr :::> It \:=. l b? -~ ~ .~ Po .~ 3 ,t ~ 6 .too . fAICTION AATIc:! (1.) o ,.0 5 o 5 aD !:J -i X ..... S:z o 5 .. o .. 5 o a "'11 nt nt -t 1 2 3 • 5 aD ...... -0 -i 7 X .... . z 8::1: nt -t gg: UJ 10 11 12 13 u 15 PROJECT: LA COSTA RANCH-NW CONE rENETHCJMETEH TEST PROJECT NUMBER: 89-230-1702 'Ii,# The farth Technologg PROBE: CPT.;..9 INSTRUMENT N'UMBER: F 15CKE088 .... Corporation· . I OATE: 10-06-1988 .- .: ---:. .. -~--- ~--------------------,,_' ----------~------~---. 0., 0 1 5 2 9"'1 10 4 III 5 6; 20 7 25 6 9 90 10 55 11 12 40 13 45 u 15 50 16 17 55 c ~C m m -u -u ;!18 ;! 60 fRICTION RESISTANCE TSf(KG/CMI) caNE RESISTANCE TSfCKG/CHI) 6 4 2 I 0 1 o· 1 O. 2 0 2 0 9 O. 9 a 4[ ( , {J J~ :? C- Z~ , < .c:::::~ >- ,~ r ::. ~\t ~ l '~ f 1=: i~ ~ ;-r> r~--~~ <~-+---+----I---~-~~ -I SOIL COLUMN a FRICTION RATIeI (Yo) 'l-~~ 1 Q ~ ~'I----,:::::= b:::::::::: ~ r <:''"-I--=- =-F -r :::l ====r-_ --=~ --=~ ---,- ..J-~I~-.1 -c= -i'" -c::::::= - -~- -;;;--1- ~ ~~ ~ -.::~--I"- ~ =- ~ -r- -==~r ::::::::::=: r--=;;10::~~"T ~r- ----I~~ r-::::::::::::::: __ _ - r-- - Q a 5 2 10 f: l'S 5 20 f: 25, D 50 f,: 55 11 40 12 S 45 " 50 15 16 55 1'1 c c m m -u 18 ~ 60 :i! ::c ;19~~ I ; 19~ ::J: -rt ~20 m 65 m -I :u I . . U)21 . . '., 10 ~-22 23 75 2-4 60 25 26 85 27 so 28 29 95 30 100 . III 92 105 89 \ 'Uo -.-. -84-..1---' , • _-0-"' .. , • -. .... .... • _--... _..... ••• - I ---'-------~-~--~-,------_ .. I -l"- -r, , I I 70 ~ '15, ao L-I--+--r-li'" 85 , r-90 r--95 r- r- '100 05 r--[1 10 '-.-~I'~'951 , ll§ ".'" .-. "-' ,,~, . ..... -.. -. . . --l--+-,---tl ~ .~ -~.\ 15 I" !IS 120 ..j __ .l-_~--------------4---4----1---1---1---1---.1 - 1 20 ~7 S8 ~25 6 PRDJECTJ LA COSTA RANCH NW PROJECT NUMBER I 89-230-1702 INSTOUMENT NUMBERlF15CKE088 DATE: 10-06-1988 l!!!!!f 'hI ED1'th ',chnologg fiiiI Corporation r -:-t' 25 400 B 'CONE PENETROMETER TEST PROBE : CP.'T.~J0 5 4 6 '1 8 9 -----------------.. -- fftICTION ftE5I5TRNCE T5flKG/CHa) CONE ftESI5TRNCE TSflKG/CHa) o o B ... 2 I to U O. I! 0 210 2!O 310 1 ~ -< p 5 2 a; 10 I) ~. "' l5 5 ~ 6]~20 -u .... -I -I ::J: 7 x .... z x 8 fTI -I ~ 9 CJ) 10 11 ~25 .,. flI fI1 -I 90 s ..::: ~ ~ « D -<; U ~P ~ -1=0- Q.<, .-5 ~ ~ t:::=:'" < ? I> 'S ~ f .---l ...-- • ~ / ~ 12 " ~ _t> 19 u ..:::: ~ V I"""::;.. 12 " 15 5 6 PROJECTzLA COSTA RANCH NW PROJECT NUMBEA:89-230-1702 INSTRUMENT NUMBER: F15CKE088 nInE: 10-06-1988 ~ .o! . . . . . & .. The forth TechnoloUII .... Corporation 3! 0 ~I I - SaIL CCllUHN 400 I fRIcnON' HATIO (Yo) • . I . { <= c:: ~ <: < [2 1 ts: "" c:=; ~ ~ --. ~ ~ lr ""'i ~ I o 1 5 2 1 o r 3 " 1 5 5 A ,,,, 00 [6 0 £3 ~ ..... ..... ::J: ,::J: ..... -, "" ..... 5:z :z IT! (TI fTI ..... ~, ...... ~o:x 0"'" 9~ (J) ,'" ..... , 5 ... " o " 5 -. Q 8 ... 10 11 12 19 u 15 caNE rENETRGMETER TEST PArISE: tPT~11 ',-- 0., 0 1 2 S-I 1 4. 1 5 6; 2 7 2 o 9 s 10 9 11 12 " 13 ·u • 15 5 tti 1'1 5 o 0 rn rn ." ." -118 -I &:t X X to ;18 ~ 3: "TI 6' ~20 ~ . rn -t :u L/)~1 i·' \.; .. "1 ':~i ...... . "25-' '1 24. , 80 25 26 05 27 90 28 29 95 so 100 SI ) ~~; 105 88 , 110 _____ . _ .. _. U.:1_~, ,;. :, ~$-~r: H § ~t .. c' 56 120 37 so .2~ fRICTlaN RESISTRNCE TSFlKG/CHI) caNE RES.ISTANCE TSF(KG/CHa) G -" .. -2 [ ~ 0 1 0 H 0 . 2i: 0 2~ 0 !H 0 s~ 0 "( . <::[$ ~~ <_ /f )( , S ( ( ) .-,--_1 l-=:==:f==.. ~f f' .I~ : ) : 1<.: S:-=. :::::1=>. . ...-.-:;. ""'"'~-I=~ ~-~ c=> :;:.'"::= <!:f==t- ~-r---""'~I ~~ ~ ~ ~ , .. ,;;;:::J:p===:::j::===- t:::;::> -<=I-:=-I .c::::::::::: --= I-=S-I t---::::l ",,' E;;;.r=- .. '--:> ~ ~-> --';;;:::::-_'l"~- ~~ i> ..)C -I:::::::~r"?"' I \ .. \ ' . \ .••••.•. , ... _. _,I, '" ___ • ___ ._ ... __ • . ---.-------~ ~-~ -----~----- . SOIL COL.UHN o =--' --. .:-. . .....:.-------_., . ... ' " 6 400 fRICTION RATIa 0::1 L...L~ ~' II ~ j?-C r I =-: /. ~~ -"""'= o. S I~ -~ 10 ::9-< I I I I ~I ~ l' :!=-- IS - ..2-~~ 1= --~ I- ~ ~ 1;:::-= '''::::::;;;;?''' -? --- -.= ,-Zr l-I . ' :~ 20 2S 80 ~ ::::;;;:;;;;. --~ 35 c:::::: ~-~ r=-I-.=--I ' r::: <=--1---=-=1-' I --:~ -I t I £F=-' . I =-I·~ J .0 45 50 -~ ;;::- I- ~ I ~ -= ~1 "",-.= 55 0 til ~ -l- ." 60~ t-I I - I-J I . I t I 70 >--'15 I ,I ' -I f I I T' 80 -OS l-I I J T I l-90 I I- ,/ I 95 l- I I I ~ -~ I I I- ~ '"l 00 05 o ... / .. , -( 'J. I I '"l 5 [ I I I -1 ! -1 I I o 25 u rROJECT'LA COSTA RANCH NW PROJECT NUHBERI89-230-1702 IN5T"UHENT NUHBERaF15C~E088 l!!!!!6 1h1 Earth ',chnologg fiiii CorporatIon CONE rENETROMETEft TEST PReJBE: CRT::-l2 DATE a 1 0-OFi-1 98 f: 2 f: 5 F ., ~: 'l1 ~: 15 16 17 '0 til ID ~ :c 9~ :J: o~ rn :D 1 L/) 149 I I -----------------------------------------------------------------------------. 1 I I CONE F'ENETROMETEI="< TEST DATA I I I 1 I SOUNDING · CPT':'2 LOCATION · CARLSBAD· CA I · · I PROJECT · LA COSTA RANCH NW I NSTRUl1ENT · F15CKEaaB I · · I PROJECT No: aq-230-17~2 ELECTRONICS: 1"1 I I TEST DATE : 10-05-1988 OPERATOR · ECJHSJEC/NS · I I I -----------------------------------------------------------------------------I I DEPTH CONE FRICTION RATIO PORE COND'UCH VlTY EXCIT (H) (tsf) (t sf) (~. ) (p sO (uI1HOSJ C:lk) (vdc:) I ---------------------------------------------------------------- 0.00 0.0 0.0~ 0.00 NA NA 10.00 1. \10 28.9 0.54 1. 88 NA NA 10.00 2.00 19.3 0.78 4.06 NA NA 1111.00 3.00 26.2 1.77 6.75 NA NA 10.00 I 4.00 27.1 1. 43 5.28 NA NA 10~ 00 5.~0 23..9 1. 77 7.41 NA NA 11ll.lam 6.00 24.8 1.74 7.00 NA NA 10.00 7.00 23.0 1.94 8.45 NA NA 10.00 I 8.00 19.4 1. 61 8.30 NA NA 10.00 9.00 21.7 1.20 5.54 NA NA Hl.00 10.IHl 26.7 1. 54 5.77 NA NA . u.~a 11.00· 27.2 1. S 1 5.55 NA NA 10.00 I 12.00 26.3 1. 68 6.39 NA NA 10.,00 13.00 20.3 1.61 7.94 NA NA . 10.00 14.~0 23.5 1. 41 5.99 NA NA 10.00 15.00 21.7 1.45 6.66 NA NA 10.00 l6.tH) 22.6 1. 45 6.39 NA NA 10.00 I 17.00 24.9 1~41 5.67 NA NA 10.03 18.00 19.4 1.11 5.71 NA NA 10.·03 19.00 33.7 1. 72 5.11 NA NA 10.00 20.IllB 24.7 1.42 5.75 NA NA HI. i!l0 I 21.00 23.6 1. 25 5.30 NA NA 10.00 22.00 16.3 1.12 6.86 NA NA 10.00 23.00 20.0 1.15 5.77 NA NA 10.011l 24.00 25.0 1. 29 5.15· NA NA 10.00 25.00 21.3 L0S 4.93 NA NA 1111.00 I: 26.00 24.1 1. 19 4.93 NA NA 10.00 27.00 26.9 1. 39 5.19 NA NA 10.00 28.00 39.7 2.45 6.16 NA NA 10.00 29.00 53.1 3.13 5.89 NA NA 10.00 1 30.ta~ 26.4 1.16 4.39 NA NA 10.00 31. 00 29.2 1.26 4.33 NA NA U.00 32.00 40.7 1. 16 2.86 NA NA 10.00 33.ID0 26.5 1. 37 5.17 NA NA -l\L 00 34.00 30.6 1. 64 5.36 NA NA 10.00 . I 35.00 _. 32.5 1. 51 4.64 NA NA 10.00 36.00 12.7 0.59 4.65 NA NA 10.00 37.00 21.9 1. 20 5.49 NA NA 10.00 38.00 29.3 1. 48 5.05 NA NA. 10.00 I 39.00 27.0 1. 7S 6.48 NA NA 10.0111 40.00 27.0 1. 62 5.98 NA NA 10.00 41.00 42.2 2.84 6.73 NA NA 10.00 42.130 50.0 3.62 7.25 NA NA 10.00 43.00 36.2 1. 42 3.91 NA NA 10.00 I 44.0ta 36.2 1. 42 3.91 NA . NA 10.00 45.00 47.7 3.22 6.74 NA NA 10.00 46.00 97.8 1. 62 1. 66 NA NA 1I1J.00 47.013 37.2 1. 69 4.56 NA NA 10.00 I. 48.130 117.5 1. 80 1. 53 NA NA 10.01a 49.00 78.5 3.02 3.85 NA NA 10.00 50.013 193.8 13.68 7.06 NA NA 10.00 I I I ",' I' "",}.- I I I I I I I I I I I I I I I I I I I I-----------~----------------------------------------------------------~------I I I I CONE PENETROMETER TEST DATA I I 1 1 1 1 I I SOUNDING . CPT-3 LOCATION · CARLSBAD CA I I . · I .1 PROJECT : LA COSTA RANCH NW INSTRUMENT · F15CKE08B 1 I · I 1 PROJECT No: 89-230-1702 ELECTRONICS~ T1 1 1 1 I TEST DATE I H1-05-1988 OPERATOR · EC/I1S/EC/I1S 1 1 · 1 I I I -----------------------------------------------------------------------------I DEPTH CONE FRICTION RATIO PORE CONDUCTI V lTY EXCIT (ft) (tsf) (tsfl (i.) (psi") (uHHOS/clIil (vdc) ---------------------------------------------------------------- 0.00 0.0 0.00 0.00 NA NA HLIH'l' 1. 00 31.7 0.41 1.28 NA NA 1130 00 2.00 2B.'1 0.37 1.28 NA NA 10.00 3.00 35.8 0.81 2.26 NA NA 10.00 4.00 30.3 1. 42 4.68 NA NA HL00 5.00 2B.0 111.71 2.52 NA NA ULIIIIIl 6.00 34.4 0.B7 2.54 NA NA U.!!I0 7.130 27.5 2.26 B.22 NA NA 10.00 8.00 25.7 2.02 7.87 NA NA 10.00 9.00 21.1 1. 41 6.69 lilA NA 1~.~0 Hl.00 21.1 1. 44 6.B4 NA NA lIii.00 11. 130 19.7 1. 31 6.62 NA NA 10.00 12.n 21. 6 1.27 5.B9 NA NA 10.00 13.130 26.6 2. 11/1 7.B7 NA NA 10.00 14.00 30.3 2.36 7.77 NA NA 10.1110 15.00 23.4 1. 57 6.72 NA NA 10.00 16.00 24.8 1. 81 7.30 NA NA 10'-0111 17.00 25.3 2.25 B.91 NA NA Ua.130 l8.n 23.9 2.28 9.56 NA NA ua.U 19.00 23.0 1. 513 6.53 NA NA 10.00 20.00 22.0 1. 40 6.33 NA NA 10.00 21. 00 37.7 1. 94 S.15 NA NA 113.00 22.00 34.0 1. 49 4.40 NA NA 10.00 23.00 45.5 2.10 4.63 lilA NA 10.1313 24.01ll 23.0 1. 36 5.91 NA NA 1~.1ll0 25.130 22.0 1. 59 7.22 NA NA 114.00 26.00 26.6 1.69 6.36 NA NA -U.00 27.1313 26.6 1. 52 5,71 NA NA 113.00 2B.00 49.1 2.81 5.72 NA NA 113.00 29.00 46.8 2.47 5.27 NA NA lk'I.IHl 30.00 51.9 3.04 5.87 NA NA 10.130 31. 00 60,6 2.23· 3.68 NA NA 113.00 32.00 64.7 3.41 5.27 NA NA 10.00 33.1a0 88.2 2.33 2.64 NA NA 10, !dill 34.00 30.8 1.82 5.90 NA NA HI.00 35.00 29.4 1. 61 5.48 lilA NA 10.00 36.00 53.3 2.80 5.25 NA NA 10.00 37.00 70.7 4.32 6.11 lilA NA 10.00 38.00 70.7 4.53 0.40 NA NA 10 •. 00 39.00 59.7 3.74 0.27 NA NA 10.140 4~.U 45.5 3.136 0.74 NA NA 10.00 41.'00 54.2 2.59 4.77 NA NA 10.00 42 •. 014 65.2 3.20 S.01 NA NA 10.130 43.013 73.S 3.96 5.41 NA NA 10.00 44.00 52.6 2.96 5.60 NA NA 10. laB 45.013 164.4 9.80 5.96 NA NA -10.00 I I I I I I I I I I I· I I I I I I I I 1-----------------------------------------------------------------------------1 I I I CONE PENETROMETER TEST DATA I I I I I I I I SOUNDING · CPT-6 LOCATION : CARLSBAD CA I I · I I PROJECT • LA COSTA RANCH NW INSTRUMENT . F15CKE0BB I I · . I I PROJECT No': B9-23~-17fa2 ELECTRONICS: T1 I I I I TEST DATE · 10-06-1988 OPERATOR I EC/MSJEC/MS I I · I I . , I I -----------------------------------------------------------------------------I DEPTH CONE FRICTION RATIO PORE CONDUCTI V IT'i EXCIT (ft ) (tsf) (tsf) (,,) (psi) (uMHOS/cllal (vdc:) ---------------------------------------------------------------- 0.00 0.~ 0.013 iii. iii iii NA NA 10.00 1. 00 66. 1 1. 80 2.72 NA NA 10.0111 2.013 66.1 4.62 b.99 NA NA 10.00 3.00 11112.3 6.B3 0-.67 NA NA 10.00 4.00 90.B 6.22 6.85 NA NA 10.00 5.00 68.3 3.BB 5.6B. NA NA 10.00 6.00 6l.9 4.66 7.54 NA NA 10.00 7.00 63.b 3.95 6.213 NA NA 1\:1.00 8.00 B2.9 3.44 4.15 NA NA 10.0111 9.00 63. 1 4.97 7.B7 NA NA 10.k10 HI. 1313 69.5 5.14 7.39 NA NA 10.00 11.130 77.7 4.70 llo 04 NA NA 10.00-' 12'.00 62.1 4.87 7.84 NA NA 10.f3lil i3.1il0 42.7 3.89 9.09 NA NA 10.00 14.1313 30.3 3.14 B.65 NA NA 10.00 15.00 40.4 3.17 7.86 NA NA 10.liHlI 16.013 28.~ 2.16 7.47 NA NA 10.00 17.00 29.8 2.26 7.59 NA NA 10.0111 18.00 31.1 2.40 7.71 NA NA 10 .• 00 19.00 27.9 2.07 7.43 NA NA 10.00 20.00 38.9 2.Bl 7.22 NA NA -10.00 21. 00 42.5 3.18 7.49 NA NA 10.00 22.00 44.9 1. 99 4.46 NA NA 10.00 23.1313 52.1 3.04 5.83 NA NA 1 Ii!. 00 24.00 31. 4 2.23 7.12 NA NA 10.210 25.00 'l1il.1 2.34 5.83 NA NA 10.00 26.n 37.3 2.17 5.82 NA NA 10.00 27.00 48.7 3.15 6.47 NA NA l0.00 28.013 21.2 1. 42 6.73 NA NA 10.IH~ I I 1---------------------------------------------------------------------~-------I I I I CONE PENETROMETER TEST DATA I I I I SOUNDING . CPT-Il LOCATION : CARLSBAD CA I I . I PROJECT :-LA COSTA RANCH NW INSTRUMENT · F15CKE0BB I · I PROJECT No: 89-230-1702 ELECTftONICS: T1 I I TEST DATE : Ui-06-1988 OPERATOR · EC/HS/EC/I1S I · I I -----------------------------------------------------------------------------I DEPTH CONE FRICTION RATIO PORE CONDUCTIVITY EXCIT (ft) (t sf) (t sf) (~O (psi) (uHHOS/cfti) Ivdc) I ---------------------------------------------------------------- 0.00 B.0 0.210 0.00 NA NA 10.00 1.021 48.7 111.71 1.46 NA NA 10.00 2.lal1l 41.3 0.54 1.31 NA NA 10.00 3.00 30.7 0.37 1.21 NA NA 10. ~0 I 4.00 44.9 0.61 1. 35 NA NA 10.00 5.00 48.6 0.61 1.25 NA NA 10.021 6.00 49.9 0.91 1. 62 NA Nfl 10.00 7.00 60.21 0.91 1. 52 NA _NA -10.00 I 13.210 70.6 0.98 1. 39 NA NA 10.00 9.210 87.1 1.5-6 1. 79 NA NA 10~ 1313 10.00 89.3 1. 35 1. 51 NA NA 10.00 11.00 80.0 1. 25 1. 55 NA NA 10.130 12.110 78.7 1. 59 2.132 NA NA U.00 I 13.00 B8.8 1. 62 1. 82 I NA NA 10.130 14.00 97.5 2.16 2.22 NA NA 10.130- 15.00 96.1 2.50 2.60 NA NA 10.00 10.1313 93.4 1. 72 1. 84 NA NA 10.00 I 17.00 U3.-0 2.00 2.013 NA NA 10.00 18.00 85.1 2.36 2.78 NA NA 111l.la0 19.1313 74.21 1. 62 2.l8 NA NA 10. lUI 20.130 60.2 1. 14 1.89 NA NA 1111. 00 I 21. 00 bB.5 1. 17 1.71 NA NA 113. 0~l 22.0~ 68.13 1. 14 1. 67 NA NA 10.130 23.00 78.1 1. 14 1. 46 NA NA tvl.00 24.00 66.1-3.21 4.B5 NA NA 10.013 25.00 118.4 3.21 2.71 NA NA 10. 0~ I 2b.~0 119.8 2.713 2.25 NA NA 10.013 27.00 94.1 2.40 2.61 NA NA 10.130 28.00 86.7 1. 98 2.29 NA NA 10.00 29.013 234.1 4.29 1. 83 NA NA 10.021 I 313.130 111. 5 4.56 4.139 NA NA 1!a.00 31. 013 105. til 3.30 3.15 NA NA 113.013 32.00 98.1 3.34 3.40 NA NA 10. 1313 33.00 87.1 2.32 2.66 NA NA 10.~0 34.1313 813.2 2.42 3.132 NA NA 10.130 1-35.013 b6.8 2.83 4.23 NA NA 10.00 36.013 89.3 2.08 2.33 NA NA 10.1il0 37.01:1 52.1 3.37 6.47 NA NA 10.00 - 38.013 91.1 2.08 2.28 NA NA 10.1313 I 39.00 99.4 1. 98 1. 99 NA NA 10.013 40.21111 75.9 2.14 2.82 NA NA 1I3.0B 41.1313 79.1 1. 67 2.37 NA NA 10.130 42.210 713.4 1. 60 2.27 NA NA 113. 00 43.00 62.S 1. 29 2.07 NA NA 10.00 I 44.130 50.6 2.S1 4.97 NA NA 10.IUl 45.00 60.7 2.134 3.36 NA NA 10. 015 46.00 124.5 2.38 1.91 NA NA 10.1:10 47.00 97.4 3.46 3.56 NA NA 10.00 I 48. ilia 141. 4 1. 83 1. 30 NA NA 114.00 I I I I I 1-----------------------------------------------------------------------------. I I CONE PENETROMETER TEST DATA I I I I I SOUNDING · CPT-12 LOCATION · CARLSBAD CA I · · I PROJECT · LA COSTA RANCH NW INSTRUMENT": F15CKE088 I · I PROJECT No: 89-2~0-1702 ELECTRONICS: T1 I I TEST DATE : 10-06-1988 OPERATOR · EClt1S/EC/MS I · I I I I I -----------------------------------------------------------------------------I FRICTION PORE CONDUCT! VITY EXeIT DEPTH CONE RATIO (ft) (tsf) (tsf) ( i.) (psi) (uMBOS/cllI) (vdc:) I -------------------------------------------------------------"--- 0.00 0.0 1lI.1il1il 0.00 NA NA 10.00 1. 00 411.4 1. 12 2.77 NA NA 111J.1!l0 2.00 4111.9 111.85 2.08 NA NA 10.00 I 3.1d0 45.0 2.58 5.73 NA NA 10.00 4. III III 28.5 2.48 8.70 NA NA 10.00 5.00 17.111 1.06 6.20 NA NA . 10.00 c.00 17.5 1.06 6.03 NA NA lB.00 7.00 11.5 0.75 6.51 NA NA 11il.00 I 8.00 B.3 0.41 4.95 NA NA U.00 9.00 9.7 0.41 4.25 NA NA 10. ~~ 10.130 14.3 0.82 5.73 NA NA "10.Ia~ 11.0'l 19.8 1.30 6.54 NA NA UL00 I 12.1110 13.9 1.16 8.37 NA NA 10.U 13. III 0 11. 1 0.75 6.78 NA NA 10.011 14.0111 10.7 0.75 7.07 NA NA 10.0121 15.00 17.0 0.99 5.b5 NA NA 10.00 16.00 17.1 0.96 5.61 NA NA 10.00 I 17.00 22.2 1. 37 b.17 NA NA 10.00 lB.!!l1ll 23.1 1. 513 6.51 NA NA 10".130 19.0~ 13.13 0.89 6.87 NA NA UL00 20.00 14.8 0.93 6.25 NA NA 1111.00 I 21. ilIlil 16.7 0.76 4.55 NA NA 10.00 22. III 0 17.0 1. 40 7.97 NA NA 1111. 013 23.00 12.1 0.67 5.53 NA NA U.00 24.0QJ 15.B 0.83 5.24 NA NA 10.00 25.00 18. 1 "-I.B3 4.58 NA NA 10.00 I 26.00 27.7 1. 75 6.29 NA NA Hl.1il0 27.00 26.8 1. 75 6.51 NA NA 10.00 28.fil0 38.3 1. 88 4.91 NA NA 1111.130 29.0eJ 34.2 1. 75 5.11 NA NA HI. 130 I 30.01il 24.1 0.97 4.01 NA NA 10.130 31.00 31.5 1.38 4.37 NA NA 10.00 32.130 48.9 2.29 4.69 NA NA 10. £10 33.0(1) 26.0 1. 31 5.04 NA NA" 10.00 34.00 111. 4 3.38 3.03 NA NA 10.00 I 35.00 52.6 2.67 5. ~l7 NA NA_ 10.00 36.IHl 49.4 2.16 4.37 NA NA -10.00 37.00 75.1 1. 1a . 1.56 NA NA 10.~0 38.00 94.0 1. 35 1.43 NA NA" 10.00 I 39.00 47.6 2.16 4.S4 NA NA 10.00 40.0m 35.7 1. 99 5.58 NA NA 10.00 41. 0~ 105.9 0.B~ 0.7b NA NA " U.00 42.00 190.4 3.93 2.06 NA NA -10.00 I 43.00 63.7 2.60 4.09 NA NA 10.00 44.00 151. 9 0.81 0.53 NA. NA 1IlI.00 45.00 111. 5 2.61 2.34 NA NA 10.00 46.00 22.4 0.40 1. 78 NA NA -10.00 47.00 22.9 0.81 3.53 NA NA 10.00 I 48.00 53.2 0.94 1. 78 NA NA 10.00 49.00 58.2 2.74 4.71 NA NA 10.00 50.00 44.0 2.74 6.24 NA NA 10.00 51.00 59.6 1.52 2.55 NA NA 1IiI.00 I 52.00 34.4 1.22 3.54 "NA NA 10.00 53.00 29.8 0.98 3.29 NA NA 10.00 54.00 15. 1 0.54 3.57 NA NA HI.00 55 •. 00 17.0 113.40 2.39 "NA I NA 10.00 56.00 14.7 0.54 3.69 NA NA 10.00 I 57.0113 14.2 113.78 S.4·8 NA NA 10.00 " 58.00 170.3 4.02 2.36 NA NA 10.00 59.00 B6.B 1.43 1.04 NA NA 11i3.1IJ0 I I I I I I I I I I· I I I I I I· I I I I File No. D.4230-H01 November 11, 1988 Summary Dry Sample Density No. pcf B7-2 108.4- BS-7 112.7 B9-5 1115.0 Bll-2 95.9 B14-S 119.5 *B15-8 92.0 B16-3 107.5 . *B17-1 111.2 * Residual Shear TABLE I of Direct Shear Test Results Angl.e of Moisture Unit Shear Content Cohesion Resistance % psf De~rees 16.5 1160 27 15.5 1420 30 15.1 290 35 26.5 250 29 13.6 730 28 29.1 190 10 18.9 990 27 17.1 700 16 I I ~: I I I I· I 1'[,:)·:; I I I :':.- I I ···· ., ,'fi.~"~ . I':';.:' .. ~~~:· ~~~.I':' .- File No. D-4230-HOI Novembe·r 11, 1988 LABORATORY REPORT . Telephone (619) 425-1993 Established 1928 CLARKSON\ LABORATORY AND SUPPLY INC. 350 Trousdale Dr. Chula Vista, ca. 92010 ANALYTJ:CAL AND CCl-1SULTIm CHEMISTS Date: 10/18/88 Purchase Order Number: 4230-HOI Account Ntmi::ler: GEOX. To: *---------------------------------------------------* GEXXDN IN:. 9530 IXlIDY DRIVE . 'SAN DIEGO, CA. 92126 . . . Laborator:y Number: 502054 CUstomers Phone No: 695-2880 Sample Designation: * . * .. Ole soil s~le marked job nane La Costa NW file #4230-HOI sample iB15-9. ANALYSIS: By Test MetOOd No. Calif. 643-C Octc:ber 2, 1972 state of SAMPLE pH 3.3 Califor.nia Department of Public Works Division of Highways Materials and Research Departnent Method for EStimating the Service Life of Metal . CUI verts. Water Added (ml) Resistivity (ohm-em) 4110 o 50 50 50 50 50 50 50 50 1450 . 490 270 . 380 280 250 250 250 Less than 5 years to perforation for a 16 to 8 gauge metal culvert. .~ , .:. . . . ~ .' " •• r," • .. \'. .' ..... ~. '. ~ .. ' '\ . " .' . ,.' ~ . -',. :' ,', ':, ...... ' .. ': _ . .,;\,.:~': .. . t.:t;:t~::· .. ~:. ·i:~~~;··. t:lr -.:: ~. :: • 'oi,' .~,:i,;.V'. ;~., I. I File No. D-4230-HOl November 11. 1988 SAMPLE NO .. 82-3 I I I I I I I I I I I I I: . I I .0~~4--+-+~++~----~-+-+~~~--~i-+--~I~~~~ .......... , y~ WATER ADDED I' II I I I I; I z o i= < c :J o en z o (.;) I-Z W (.;) a: w c. Figure B-1 0.1 ......... ~ (;. 1'-! I O.S 1.0 5.0 10.0 APPLIED PRESSURE (ksf) INITIAL DRY DENSITY 99.0 (pet) INITIAL SATURATION INITIAL WATER CONTENT 24.0 (%) SAMPLE SATURATED AT CONSOLIDATION CURVE LA COSTA RANCH -NORTHWEST AREA CARLSBAD, CALIFORNIA SO.O 100.0 . 85.0 (%) 0.5 (!<sf) t I ile No. D-4230-HOl r vember 11 199B .1 SAMPLE NO. 86-3 I I I I I I I ~~ ! l--' WATER ADDEO 0 ......... V I "-( I i'... I z I ...... ~ I ..... 0 ~ i= <C 2 ! c "" -, :::i " , 0 ...... 1'0 " ·1 en i'-... z 3 0 .............. ""-I c.:> '" ~ I l-I"'-.... r--.... '\ I z 4 L1J " ~ I c.:> I a: I L1J 0-5 i r ! I I I I I -I I ! 0.1 0.5 1.0 S.O 10.0 APPLIED PRESSURE (ksf) INITIAL DRY DENSITY 110.4 ( pef) INITIAL SATURATION I I I I I I I I I I. I I I I I· INITIAL WATER CONTENT 18.0 ( 'l6 ) SAMPLE SATURATED AT CONSOLIDATION CURVE LA COSTA RANCH -NORTHWEST .AREA CARLSBAD, CALIFORNIA I Fi.gure B-3 I I I II 1 I! . I I I . I! .' .1 II I 1 I I ~ I I II I II I i! I II I I 1 I I II I 1 50.0 100.0 87.5 (~) 0.5 ( ksf) • I I I I I I· I I I I I I I. I, I: I I, I· I' File No. D-4230-H01 November 11, 1988 SAMPLE NO. I 84-4 I /J .. .\ WATER ADDEO V z 0 ......... ....... 0 '" '" ... ~ i= " « i'.. r-... t-.. I , C ........... " :J ..... ~ ~ 0 en "-z 2 i'. 0 ......... ~ ~ U r....... ~~ I-........ z 3 w u a: w c.. I 0.1 0.5 1.0 S.O 10.0 APPLIED PRESSURE (ksf) I 1 I I I I ! I I I I I i 1 I I I I J I I I . I I I I I ! INITIAl. DRY DENSITY 105.3 (pef) INITIAL SATURATION INITIAL WATER CONTENT 21.2 (%) SAMPLE SATURATED AT CONSOLIDATION CURVE LA COSTA RANCH -NORTHWEST AREA CARLSBAD, CALIFORNIA FJ.gure B-2 I I I II I I I I I I I I I I II - I I I I II I i, I '1 I I I I I I I I I I I I II I -i, Ii II 50.0 100.0 92.6 ( % ) 0.5 ( ksf) I '" I I../- I I I I- I I I I I I I- I I I I I I Project No. 04230-12-03 September 25, 1996 Morrow Development clo Villages of La Costa ( -- Post Office Box 9000-685 Carlsbad, California 92078-9000 Attention: Mr. Fred Arbuckle Subject: LA COSTA NORTHWEST CARLSBAD, CALIFORNIA PRELIMINARY RIPP ABILITY STUDY Gentlemen: ( • -- 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 duriIl:g grading within the portion of the project underlain by rock. The Santiago Peak Volcanics (Jsp) are exposed along the upper slopes in the southeast comer 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 I ,', I I I I I I I I I I I I~ I I' .1 J I' I .,;,. '.:',!' : S-l 8-2 -8-3 S-4 S-5' 8-6 S-7 S-8 8-9 3-10 NOTE: r " , ....... . .:\..... :.-,..:.' .,:..- '<,:' ~,;~~, 'i:</':~l~~i'~~'>'~:~l~'~~~~" ',TAB~~~~"L :: ;',', ,:.'/::': :,: ,,':':' ,:, ',' , ~~,i' SErSMIC"TAA VERSES-: ·-:.7!'" ," • • ••• '_" . l::~~ .'.~' .. !' ';: /~ :.' '"-. ~~ I !::~. .:'":~ .' 4198 10619 14-17 100 3178 9976 5-6 100 3403 8868 2-10 100 5192 32685 22 100 1791 8019 4-8 100 1459 3639 10989 2-3 12·24 100 3430 18373 16-21 100 2981 32156 19-21 100 1411 4581 9055 3-7 12·24 100 2378 12892 4-8 100 , -VI V2 = Velocity in feet per second of flISt layer of materials Second layer velocities V3 Dl D2 = = Third layer velocities Depth in feet to base offirst layer Depth to base of second layer .:-.. : (ft;).., , 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 fp~ generally indicate non-rippable conditions. The above velocities are 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 September25, 1996 I I I I I I I I I I I I I I I I I I I APPENDIX D SELECTED BORING LOGS FROM . GEOTECHNICAL INVESTIGATION FOR RANCHO CARRILLO PROJECT -MAJOR ROADS, CARLSBAD, CALIFOFiNIA, PREPARED BY GEOCON INCORP.OijATED, DATED JANUARY 15, 1993 (PROJECT NO. 04787-12-01). FOR VILLAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA PROJECT NO. 06403-12-03 I I?ROJECT NO. 04787-12-01 ,::. DEPTH SAMPLE IN NO. I' FEET SOIL CLASS (USCS) It 0 CL I[ 2 -4 It 6 CL I II 8 BORING SBM 10 ELEV. (MSL) 111 DATE COMPLETED EQUIPMENT MAYHEW 1000 ROTARY MATERIAL DESCRIPTION Firm, damp, dark brown, Sandy CLA Y Firm, wet, dark brown, Sandy CLAY -Water table after stabilizing at 4 feet zll.l ..... 0 0 • I-4 z l-I-<J:u.. <J:I-' a:tI'ltl'l 4/27/92 1-1-4 3 II.ItI'l0 zll.l..J wa:1Xl a. .., 3 )0 '"' t:i'" II.I~ 0::'"' tI'l • zu.. ::::II-11.1 • I-Z C~ tI'lW 1-41-)oil. Oz a:"" :E:o c 0 I 10 ~~~-r----4--------------------------------------r-~-+~~~~~. I 12 I 14 16 ·1 18 I· 20 ... I 22 I 24 I "26 28 I CL-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 10 ~~~-r-----~--------------------------------------~~-+~~~~~ Becomes light brown, fine to coarse, Clayey SC SP-SC SAND with little, fine gravel - - - --Becomes -medfum-dense~ saturai"ed,-lIght biown~ --- medium to coarse, slightly clayey SAND to Clayey SAND Figure A-iS Log of Boring S8M 10, page 1 of 2 CROR 1:·~iI~!:i;SAMPLE SYMBOLS 0 ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIVE SAMPLE (UNDISTURBED) ~ ... DISTURBED OR BAG SAMPLE ~ ... CHUNK SAMPLE ~ ••• WATER TABLE OR SEEPAGE .".. I 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. 04787-12-01 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 SOIL CLASS (uses) CL BORING SBM 10 ELEV. (MSL) 111 DA TE COMPLETED EQUIPMENT MAYHEW 1000 ROTARY MA TERIAL DESCRIPTION Very stiff, saturated, green, Sandy CLAY -Becomes gravelly at 32 feet zw .... }o ,.. o CJ • 1-..... w~ I-Izl-1-1 • 0:'" I-<tu. (/)u. ::lt-<tl-' z • 4/27/92 o:(/)(/) Wo t;z 1-1-1 3 C • I-IW w(/)o }o!l. at-zw.J :t:z ~o:~ 0:'"' 0 C U ~~~~----4--------------------------------------~~-+----~--~ GC Very dense, saturated, yellowish brown, Clayey SAND and gravel ~~~+----4--------------------------------------~---+----~--~ Becomes very dense, green, Sandy CLA Y GC with gravel and cobbles BORING TERMINATED AT 46.5 FEET REFUSAL /3" I , ......... ;:.F.: ... ~gure A-16 Log of Boring SBM 10. page 2 of 2 ii:r,I:;':SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL [J .•• STANDARD PENETRATION TEST CROR II ... DRIve SAMPLE (UNDISTURSeO) ~ ••• WATER TABLE OR SEEPAGE I _ ~ ••• DISTURBED OR BAG SAMPLE ~ ••• CHUNK SAMPLE = . 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. 04787-12-01 I'::':::' DEPTH BORING SBM 11 zw ..... ,.. ,.. o u • ~ ... W~ HZ'" (f) • a:'" SOIL I-<tll. Zll. :JI-SAMPLE <t ... , O::(J)(J) W • I-z: IN CLASS NO. ELEY. (MSL) 110 DATE COMPLETED 4/28/92 ' I-H::3 c~ (flUJ I HI-FEET (USCS) W(J)O ,..0. Oz: ZW.J EQUIPME~T MAYHEW 1000 ROTARY UJa:1D 0::'" 40 0. '" C u. I MATERIAL DESCRIPTION 0 Firm, damp, yellowish brown, Sandy CLAY CL with desiccation cracks I 2 I. 4 CL Stiff, moist, yellowish brown mottled, Sandy CLAY IS 111.1 19.0 6 I 8 I 10 -------------------------------------- Becomes alternating stiff, yellowish brown I Sandy CLAY and medium dense, brown, 12 Clayey SAND , I 14 --------------------------------------Becomes loose to medium dense, saturated, 16 SP-SC yellowish brown mottled, fine to medium, 'I Clayey SAND alternating with slightly clayey SAND, with little gravel 18 I· 20 Mll 32 I -4 22 I 24 - - - --Very stlff,-wet,-I1g-ht green, -Sandy-CLAY - - - - - - - I 26 CL I 28 I ...... : .... : .. ~igure A-17 Log of Boring SBM 11. page 1 of 2 o ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST :::::1:: SAMPLE SYMBOLS CROR •••• ORIVE SAMPLE (UNDISTURBED) ~ ••• WATER TABLE OR SEEPAGE I . ~ ••• 0 I STURBEO OR BAG SAMPLE ~ ••• CHUNK SAMPLE = ' 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 04787-12-01 1:":"- I DEPTH SAMPLE IN NO. FEET I' r-30 1:::i.t:SMi 11 f---6 ,:, I f-32 -:' i-_ r.- t" )0 if c:J 0 sorL .J 0 CLASS J: f-(Uses) 1-1 .~ .J ICL-SC BORING SSM 11 ELEV. (MSL) ~1...::...10=---_DATE COMPLETED 4/28/92 EQUIPMENT MAYHEW 1000 ROTARY MA TERIAL DESCRIPTION Becomes alternating of green mottled, fine to medium Clayey SAND and very dark brown, Sandy CLAY -34 -} I f--ISBMlllo.'l +:;"""', """~!-+---+ ---- - ---- --- - - - - - - - - - - - ----- - - - -.. - ---- SP-SC to medium slightly clayey SAND with carbon ZW .... )0 '" o tJ • 1:; .... w~ H Z !-0:'" !-<tll. Ul' • ~I-~ zu. :::l ... W • "'z I-{I):l cc.: UlUJ WHO 1-1 ... z{l).J )0 a. Oz WWIIl 0::"'" I:o a. 0::", c 0 31 ~ l- f- I-- 2U lU3.4 Zj,3 l- I-I f-36 --7 I :,; :,:','1 Becomes medium dense, saturated, gray, fine r--:~ ~: flecks and fine voids; more clayey in places f-38 -r.::~:~r-r----~-----------------------------------------------------------~----4-------~---~ :; I f--> i-40 -SBMll [ r - --8 ( I -42 -t~ -:,~ I ... 44 -:,~ :,~ --ISBM 1. ~ -46 --9 ~ I' i-- f-48 -'; I: f-- CL CL CL WEATHERED DELMAR FORMATION Dense, wet, light green mottled, Clayey SAND and grayisp. brown, Sandy CLAY -Becomes very stiff, wet, light green with dark red staining, slightly sandy CLAY. fractured with trace of fine gravel DELMAR FORMATION Hard, moist, light green, slightly sandy l- f-37 f- i- :- - -30 107.3 21.7 - f- -i- I-50 -I'SBMlI I CLA Y with trace 'of fine gravel I-46 I I--1--_l_0-lLf"'~9--t-____ -t-_______________________________________ -+"" __ -+ ______ -t-___ _ BORING TERMINATED AT 51.5 FEET I I I I"::;:,f,igure A~18 Log of Boring SSM 11, page 2 of 2 CROR t::::: SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... STANDARD PENETRATION TEST .... DRIve SAMPLE (UNDISTURBED) I ~ ... 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 SUBSURFACE ~ONDITIONS AT OTHER LOCATIONS AND TIMES. I, I PROJECT NO 04787-12-01 I~~EP," 'I IN FEET I ~ 0 I : 2 SAMPL.E NO. )0- (!l o .J C!) J: ~ H .J ~ : ~ -: ; i ~. -BM34 I:Y . --1 .::' c: w ~ ~ SOIL ~ CLASS 5 (USCS) c: (!l SM BORING BM 34 ELEV. (MSL) ---.;;;2=10~_DA TE COMPLETED 1/15/92 EQUIPMENT E-100 BUCKET RIG MA TERIAL DESCRIPTION DELMAR FORMA nON Dense, damp, light to orange-brown, Silty, fine SANDSTONE 110.9 I : 4 ~ BM34 ~:.~:.~:;t:t==1 -1.5 x 1 ~oot highly cemented concretion 1-:--4.--+----+--- _ 6 --2 ~ ; in south side boring at 5 feet I_ _ _ 1. 1_ I, ML 1 -Sharp irregular, near horizontal contact I -----:r5ense~ damp,-lfght green~ Clayey -----------, ~~14:~!I-4-S-M--+; SILTSTONE; thinly bedded ;1-----1----+--- I '--f.;J ..... ' ot..: ~':~-I----I -Gradational contact 'I----+----l--- ~ 8 - .-~ \ I t-10 -BM34' -----I5ense:dariip,-lrghtto-meci1urnbrov.;n~Silty,-----' I-7 122.1 12.8 ~ _ -3 I' fine to medium SANDSTONE; several I to 2 I '-'1 :! inch interbedded green claystone lenses ,-12 -'J :; with orange oxide : J' : i SM -1 x 1.5 foot highly cemented concretion --, -:if .' at 9 feet I J 14 -" .' -10 inch x 2 foot highly cemented concretion 10.5 feet -~ -~ ;.~ ;! -Continuous well cemented from 12 to ~;!,;I",I,;~4----!-, 13-.3 feet with shells -I--'---t---+-- I, ~ 16 -BM34 ~ ~ -Becomes fine to coarse at 14'feet : -5 ~ _ -4 CL \ -Irregular near horizontal contact I I-~ 18 -~ F!i~~--I-__ ...j.,I •. - - --Stiff to-v-ery ;~iff,-damp,-l1ght green,---------:.1----1-----;--- I ~ - : ~ I :; I ~ -Sandy CLAYSTONE; gypsum fracture fillings, : i- SM \ orange oxide staining I '-20 -_ BBM~53344 :::'.~:: : .... ::.:~:::, .. :,:: .::~ .. ,. ~ -Gradational contact ! f-5 7.6 123.9 I ,-----De-rue: damp,-lfght gray to-light green,--------f- ~ 22 _ -6 Silty. fine to coarse SANDSTONE: massive f- I : 24 : B~J4 1.~j..;.L_""i :U~,J.;~,f-+----j.~ ___ ~ :~?~!o~~g~~~~~g~~:. _n:~ ______ c ______ /1-:-4,---+---+--- I ~=r;: CL Very stiff. damp to moist, light green, ,.. 26 -~ Silty CLAYSTONE; moist along contact .... = at 24 feet, thinly bedded with orange ~ -·rf\: S 'I oxide along bedding ,- 28 -~;~IL..t.l~J..~~1uqi:.l--I--_M_....j. I -Irregular, near horizontal contact I !=I-~_-+-__ +-__ F CL f ~'-- --Dense~ aamp,-lfght graY.-Sllty~ Ilne 10'-- - - - - - -f f-I - I I medium SANDSTONE f Log of Boring 8M 34, page 1 of 2 CROR I· Figure A-86 , . ) SAMPLE SYMBOLS D ... SAMPLING UNSUCCESSFUL IJ ... _STANDARD PENETRATION TEST •••• DRIVE SAMPLE (UNDISTURBED) f2l ••• CHUNK SAMPLE ~ ... \lATER TABLE OR SEEPAGE = 'I' T IB3 ... DISTURBED OR BAG SAMPLE 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 04787-12-01 J. a: BORING BM 34 z w '" >-,... :::::::~ >-w 00· 1-.... w~ ':;}~~;r~EPTH C!I I-HZI-H • cr'" 0 <r SOIL I-<r u. (/)u. :;)1-SAMPLE ..J ':3 <1:1-' Z • IN 0 0 CLASS crill(/) Wo 1-% NO. ::I: z ELEV. (MSL) 210 DA TE COMPLETED 1/15/92 1-1-1:3 Q • (/)w I-:;) HI-FEET 1-1 0 .(USCS) WIIlO >-Il. 9% ::Z:w.J .J a: EQUI~MENT E-100 BUCKET RIG ~a:S cr'" ""0 C!i Q CJ I MATERIAL DESCRIPTION 30 BM34 "'Sliarp Irregular contact N2.t::., oNW t ~ lUj.4 10.0 I I---8 I I I- BM34 CL . - - - -:[/8 -to' 114-fnch moist to -damp -clay -at co-ntact -_. I-32 --9 I Very stiff to hard, damp to moist, dark l- t-. -green CLAYSTONE; micaceous from 28.2 to I-32 feet, thinly bedded below 32 feet I-34 -~ -Gradational contact l-.. . i \ t--BM34 :" : . - - --I5ense~ damp, -lIghf green to -lIghf brown,-- - - - --, I-9 I-36 --10 :: : SM Silty, fine to medium SANDSTONE; r-. : massive with .abundant cross bedding, t--:: . :; orange oxid'e staining I- 38 -: -Becomes fine to coarse at 36 feet t--Cross beds NI0W, 15SW at 37 feet l- I--l- I-40 -BM34 J I-8 I---11 l- t-42 --8 inch thick continuous highly weathered I- .'--concretionary bed at 42 feet; irregular shape, some dark brown clay developed l- i from weathering within the concretion, .. ' 44 -clay not continuous I- -BM34 I '-3 115.3 15.3 46 _1., .. BORING TERMINATED AT 46 FEET Figure A-87 Log of Boring BM 34. page 2 of 2 CROR (] ••• STANDARD PENETRATION TEST .•••• DRIVE SAMPLE (UNDISTURBED) ) SAMPLE SYMBOLS D ... SAMPL'ING UNSUCCESSFUL Ea .•• CHUNK SAMPLE l!: ... YATER TABLE OR SeEPAGE = 'I l l&1 ••• 0 I STURBED OR BAG SAMPLE 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 YARRANTED 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' APPENDIX E - SLOPE STABILITY ANALYSES for VILLAGES OF LA COSTA -THE GREENS CARLSBAP,-CALIFORNIA PROJECT NO. 06403-12-03 ... - - - - -.~ ,-,-.. ,. - - - -,--,,, - Project No. 06403-12-01 Village of La Costa -Greens Cut Slope 1 - 1.871 • PL ....... 300'~-~---~=·~" .. mL r-Qcf ¢::: , '-" 280 C o 260 +i co 240 > ~ 220 W 200 0 50 100 150 200 250 300 350 Distance (ft) Description 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\VLC1.slp Figure E-2 -. - - - - - - - - -.. - - - - - - - - Project No. 06403-12-01 ----~ c o ~ a; w 50 100 Village of La Costa -Greens Cut Slope 2 1£:iO 200 2.278 • 250 300 Ocf . 350 Distance (ft) 400 450 500 Description Unit Weight Frictiop:Angle . Cohesion (pet) (degr~es) (pst) Qcf 130 . 25 300 Ts 130 30 :300 B.P.S. 130 10 100 File Name: La Costa Greens\VLC2.slp 550 600 Figure E-3 . ------------------- Project No. 06403-12-01 .......... ~ c o 10 ~ ill Village of La 90sta -Greens Cut Slope 3 2.167 • 50 100 150 200 . 250 300 350 Distance (ft) Description Unit Weight Friction Angl 3 Cohesion (pet) (degrees) (pst) Ocf 130 25 300 Ts 130 30 300 B.P.S. 130 10 100 File Name: La Costa Greens\VLC3.slp ~ Figure E-4 - -.. -- ---- ----- Project No. 06403-12-01 .......... ~ c o 1n > CD W1 : ' Village of La Costa -Greens Cut Slope 4 1.797 • - - - 50 100 150 200 250 300 350 400 450 500 550 600 650 Distance (ft) Description Unit Weight Friction Angl ~ Cohesion (pcf) (degrees) (psf) . Ts 130 30 300 Fault 130 10 100 L-__________ ... _-- File Name: La Costa Greens\VLC4.slp Figure E-5 -.- - --. -. - - - - - - - - - - - --. - - Project No. 06403-12-01 ,........, 200 .¢:: ........... 180 C o 160 10 140 > Q) W 50 Description act Ts B.P.S. Village of La Costa -Greens Cut Slope 5 100 150 200 250 300 350 Distance (ft) Unit Weight ·Friction Angl ~ Cohesion (pcf) (degrees) (psf) 130 25 300 130 30 300. 130 10 100· 1.731 • File Name: La Costa Greens\VLC5.slp ~ Figure E-6 I I I I I I I I I I I I I I I I I I I APPENDIX F RECOMMENDED GRADING SPECIFICATIONS for VILLAGES OF LA COSTA -THE GREENS CARLSBAD, CALIFORNIA PROJECT 'NO. '06403-12-01 I I I I I I I I I I I I I I I I I I I 1.1. 1.2. 1.3. 2.1. 2.2. , 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 ~onsultant (Consultant) shall be employed for the purpose of observing earthwork procedUres and testing the fills for substantial conformance with the recommendations of the .Geotechnical Report and these specifications. It will be necessary 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 Consultant and keep him. apprised of work schedules and changes so that personnel may be scheduled accordingly. It shall be the sole responsibility 6f 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 opinion of the Consultant, unsatisfactory conditions such as questionable soil materials, poor moisture condition, inadequate compaction, adverse weather, and so forth, result in a quality of work not in conformance with these specifications, the 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 finn responsible for preparation of the grading plans, surveying and verifying as-graded topography. . GI rev. 8/98 I I I I I I I I I I I I I I I I I I I 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. Soil Engineer shall refer to a California licensed Civil Engineer retained by the Owner, who is experienced 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 conformance with these specifications. Engineering Geologist shall refer to a California licensed Engineering Geologist retained by the Owner to provide geologic observations and recommendations during 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 Recommended 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 use in construction of fills. In general, fill materials can be classified as soil fills, soil-rock fills or rock fills, as defIDed below. 3.1.1. Soil fills are defIDed 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 defmed 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 defIDed as material greater than 12 inches. 3.1.3. Rock fills are defmed as fills containing no rocks or hard lumps larger than 3 feet in maximum dimension and containing little or no fines. Fines are defmed as material smaller than 3/4 inch in maximum dimension. The quantity of fines Shall . be less than approximately 20 percent of the rock fill quantity. Gr rev. &/98 I I I I I I I I I I I I I I I I I I I 3.2. 3.3. 3.4. 3.5. 3.6. 4.1. Material of a perish,able, spongy, or otherwise unsuitable nature as determined by the Consultant shall not be used in fills. Materials used for fill, either imported or on-site, shall not contain hazardous materials as defined by the California Code of Regulations, Tide 22, Division 4, Chapter 30, Articles 9 and 10; 40CFR; and any other applicable local, 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 termination of grading operations within the affected area. Prior to resuming grading operations, the Owner shall provide a written report to the Consl,lltant indicating that the suspected materials are not hazardous as defmed by applicable laws and regulations. ne outer 15 feet of soil-rock fill slopes, meastlI'ed horizontally, should be composed of properly compacted soil fill materials approved by the Consultant. Rock fill may extend to the slope face, provided that the slope is not steeper. than 2: I (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 ~aboratory by the Consultant to determine the maximum density, optimum moisture content, and, where appropriate, shear strength, expansion, and gradation characteristics of the soil. During grading, soil or groundwater conditions 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 of 1IeeS~ stumps, brush, vegetation, man-made structures and similar debris. Grubbing shall consist of removal of stumps, roots, buried logs and other unsuitable material and shall be performed in areas to be graded. Roots and other projections exceeding 1-1/2 inches in diameter-shall be removed to a depth of3 feet below the surface of the ground. Borrow areas shall be grubbed to the extent necessary to provide suitable fill materials. ( GI rev. 8/98 I I· I I I I I I I I I I I: I I I I' I I 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 materia~ 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 "B" 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 shoolCl 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. roT ... " !!/Q!! I I I I I I I I I I I I I I I I I I I 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 uniform 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 ~ompaction equipment. Equipment shall be of such a design that 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 fills shall be performed in accordance with Section 6.3. 6. PLACING, SPREADING AND COMPACTI'ON OF FILL MATERIAL Soil fill, as defined in Paragraph 3.1,1, shall be placed by the Contractor in accordance with the following recommendations: 6.1.1. Soil fill shall be placed by the Contractor in layers that, when compacted, should generally not exceed 8 inches. Each layer shall be spread evenly and shall be thoro.ughly mixed during spreading to obtain uniformity of material and moisture in each layer. The entire fill shall be constructed as a unit in nearly level1ifts. 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 ASTM D1557-91. 6.1.3. When the moisture content of soil fill is below that specified 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 shall be aerated by the Contractor by blading/mixing, or other satisfactory methods until the moisture content is within the range specified. (H rev. 8/98 I I I I I I I I I I- I. I I I I I I I I 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_ opmnum moisture content for the material. 6.1.7. Properly compacted soil fill shall extend to the design surface of fill slopes. Tp 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 ~heepsfoot or vibratory r.oller 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 least twice. Soil-rock fill, as defined 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 maximum dimension may be incorporated into the compacted soil fill, but shall be limited to the area measured 15 feet minimum horizontally from the slope· face and 5 feet below fmish 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 mwmum dimension shall be evaluated during grading as specific cases arise and - shall be approved by the Consultant prior to placement. GI rev. 8/98 I I I I I I I I I I I I I I I I I I I 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 or 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 so.i1 in the windrows must be continuously observed by the Consultant or his representative. Rock fills, as defmed in Section 3:1.3.,.shall be 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 of2 percent, maximum slope of 5 percent). The surface shall slo.pe toward suitable sub drainage outlet facilities. The rock fills shall be provided with Subdrains during construction so that a hydrostatic pressure buildup does not develop. The sub drains shall' be permanently connected to controlled drainage facilities 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 facilitate seating 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 vibratory roller or other compaction equipment providing suitable energy to achieve the GIrev.8/98 I I I I I I I I I I I I I I I I: I I I 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 fillUft has been covered with soil fill, no additional rock fill lifts will be permitted over the soil fiU. 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 relative' compaction of 90 percent). Plate bearing tests shall then be performed on areas of rock fill having two passes, four passes and six 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 deflection variation with number of passes. The required number 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 material. 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 i-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 determined at the time the 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. 01 rev. 8/98 I I I I I' I I I I I- I I I I -I I, I I 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 p.laced 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 flll material is compacted I - 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 shall verify that the minimum number of passes have been obtained p~r 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 rock 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 fin has been adeq~ately 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. OT rev. 8/98 I I I I I I· I I I I I I I I I I I I 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 oj 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,. ASTM D1557-91, Moisture-Density Relations of Soils and Soil-Aggregate Mzxtures Using 10-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 D1196-64 (Reapproved 1977) Standard Method for Nonrepresentative Static. Plate -Load Tests of Soils and Flexible Pavement 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 control features have been installed. Areas subjected to erosion or sedimentation shall be properly prepared in accordance with the Specifications prior to placing additional fill or structures. After completion of grading as observed and tested· by the Consultant, no further excavation or filling shall be conducted except in conjunction with the services of the Consultant. . I"!.T ....... o/no I I I I I I I I I I I I I I I 9.1. 9.2. 9. CERTIFICATIONS AND F~NAL 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 all 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 subdrains and the Contractor should ensure that the drain 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 performed in substantial conformance with the Specifications or approved changes to the Specifications. GI rev. 8/98