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Home My WebLink AboutCT 01-01; CALAVERA HILLS VILLAGE L-2; SUPPLEMENTAL INVESTIGATION AIR-TRACK BORING SURVEY Calaveras Heights Villages L2, Q, R & T; 1997-02-28PART I SUPPLEMENTAL INVESTIGATION AIR-TRACK BORING SURVEY CALAVERAS HEIGHTS VILLAGES L2, Q, R AND T TAMARACK AVENUE AND COLLEGE BOULEVARD CARLSBAD, CALIFORNIA PREPARED FOR: WILLIAM LYON HOMES 4490 VON KARMAN AVENUE NEWPORT BEACH, CALIFORNIA 92660 PREPARED BY: SOUTHERN CALIFORNIA SOIL AND TESTING, INC. 6280 RIVERDALE STREET SAN DIEGO, CALIFORNIA 92120 Providing Professional Engineering Services Since 1959 SOUTHERN CALIFORNIA SOIL & TESTING, INC. 6280 Riverdale Street, San Diego, CA 92120 P.O. Box 600627, San Diego, CA 92160-0627 619-280-4321, FAX 619-280-4717 February 28, 1997 William Lyon Homes 4490 Von Karman Avenue Newport Beach, California 92660 SCS&T9711027 Report No. 1 ATTENTION: Mr. Gary Wangler SUBJECT: Supplemental Investigation, Air-Track Boring Survey, Calaveras Heights Villages L2, Q, R and T, Tamarack Avenue and College Boulevard, Carlsbad, California. Gentlemen: In accordance with your request, we have completed an air-track boring survey as a supplemental investigation for the proposed project. We are presenting herewith our findings and recommendations. If you have any questions after reviewing the contents contained in the attached report, please do not hesitate to contact this office. This opportunity to be of professional service is sincerely appreciated. Respectfully submitted, SOUTHERN CALIFORNIA SOIL AND TESTING, INC. DBA:JRH:mw cc: (6) Submitted Daniel B. Adler, R.C.E. #36037 TABLE OF CONTENTS PAGE Introduction and Project Description 1 Scope of Service 2 Findings 2 Site Description 2 General Geology and Subsurface Conditions 3 Geologic Setting and Soil Description 3 1) Basement Complex - Jurassic Metavolcanics and Cretaceous Granules (Jmv/Kgr) . 3 2) Tertiary Paleosol (Tp) 4 3) Santiago Formation (Ts) 4 4) Quaternary Sandstone (Qu) 4 5) Older Quaternary Alluvium (Qoal) 4 6) Younger Quaternary Alluvium (Qyal) 4 7) Artificial Fill (Qaf) 5 Excavation Characteristic 5 General 5 Air-Track Boring Survey 5 Village L2 6 Village Q 7 Village T 9 Village R 10 Conclusions 10 ATTACHMENTS FIGURE Figure 1 Site Vicinity Map, Follows Page 1 PLATES Plates 1-19 Plot Plans Plates 20-148 Boring Logs APPENDICES Appendix A Seismic Refraction Survey SOUTHERN CALIFORNIA SOIL & TESTING, INC. 6280 Riverdale Street, San Diego, CA 92120 P.O. Box 600627, San Diego, CA 92160-0627 619-280-4321, FAX 619-280-4717 SUPPLEMENTAL INVESTIGATION AIR-TRACK BORING SURVEY •m CALAVERAS HEIGHTS VILLAGES L2. 0. R AND T " TAMARACK AVENUE AND COLLEGE BOULEVARD CARLSBAD. CALIFORNIA •m INTRODUCTION AND PROJECT DESCRIPTION MB ,„ This report presents the results of our air-track boring survey for a proposed residential subdivision, to m be located easterly of the intersection of Glasgow Drive and Harwich Drive and Elm Avenue, in the City of Carlsbad, California. The site location is shown on the vicinity map provided as Figure Number 1. It is our understanding that the site will be developed to receive a commercial development, school site and residential subdivision with associated paved streets that are designated as Villages L2, Q, R and T. To assist in the preparation of this report we were provided with preliminary grading plans prepared by M Hunsaker and Associates. In addition we have reviewed the following reports in our files.•*» •1*1 1) "Supplemental Soil Investigation, Calaveras Hills Villages Q and T, College Boulevard, Carlsbad, California;" Southern California Soil and Testing, Inc.; dated October 6, 1988. ,m 2) "Report of Geotechnical Investigation, Village Q, Calaveras Hills Subdivision;" January 10, * 1984. ** 3) "Preliminary Geotechnical Investigation, Calaveras Subdivision;" Southern California Soil and Testing, Inc.; January 6, 1983. •m «• 4) "Soils Engineering and Engineering Geologic Reconnaissance Investigation, Calaveras Hills «*» Property;" Earth Research Associates, Inc.; April 29, 1981. **** *• 5) Appendix A of Report; San Diego Soils Engineering, Inc.; February 18, 1981. S- IX^gtt^ **« :^Jww^ri^i ' CARLSBAD/ ii y/N. SOUTHERN CALIFORNIA V^ry SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 2-27-97 FIGURE NO. 1 » SCS&T9711027 February 28, 1997 Page 2 6) "Pre-Preliminary Investigation for the Calaveras Country Development;" Southern California Testing Laboratory, Inc.; June 7, 1973. 7) Related correspondence in our files. Where pertinent, information from said reports was incorporated to this study and is presented in Appendix A. The site configuration, approximately topography and location of our subsurface borings are shown on Plate Numbers 1 to 19 of this report. SCOPE OF SERVICE This investigation consisted of: surface reconnaissance; air-track boring survey; analysis of the field data; research of available geological literature pertaining to the site; and preparation of this report. Specifically, the intent of this analysis was to further evaluate the excavation characteristics of the rock material underlying the site and its impact on the proposed site grading. Our conclusions are based on the findings of the air-track borings and our previous geotechnical studies of the site. FINDINGS SITE DESCRIPTION The subject site consists of undeveloped parcels of land located easterly of Harwich Drive and Glasgow Drive in Carlsbad, California. The site is separated into four areas and are designated as Village L2, Village R, Village T and Village Q. The site consists of approximately 178 acres and is bounded by undeveloped land on the east, residential and undeveloped land on the south, residential and commercial land on the north and Glasgow Drive as well as undeveloped land on the west. Topographically, the site consists of hilly terrain with well-incised drainage swales. Drainage is accomplished via sheet flow and the drainage swales. Elevations range from approximately 450 feet (MSL) to 190 feet (MSL). Vegetation consists of moderate to dense chaparral and native grasses. An overhead high voltage power line traverses the southeastern portion of the site and a large water tank, a pump station, and associated subsurface water lines, also exists on site. SCS&T 9711027 February 28, 1997 Page 3 GENERAL GEOLOGY AND SUBSURFACE CONDITIONS GEOLOGIC SETTING AND SOIL DESCRIPTION: The subject site is underlain by materials of both igneous and sedimentary origin. The igneous material is part of the basement complex consisting of Jurassic metavolcanic rocks and Cretaceous granitic rocks. The sedimentary material consists of the sandstones and siltstones of the Tertiary-age Santiago Formation, Tertiary-age paleosol, Quaternary-age sandstone, alluvium, and man-made fill. A brief description of the materials on site, in general decreasing order of age, was taken in part from the October 6, 1988 report (referenced) and is presented below. It should be noted that the term "rock" as used in this report applies in the geologic sense in that all native materials of igneous origin or sediments that are sufficiently consolidated or coherent can be classified as "rock." This term does not necessarily indicate that the materials are not excavatable by conventional earth-moving equipment. The approximate limits of the various materials are indicated on Plate Numbers 1 through 19. 1) BASEMENT COMPLEX - JURASSIC METAVOLCANICS AND CRETACEOUS GRANITICS (Jmv/Kgr): The oldest rocks exposed at the site are the Jurassic-age metavolcanic and associated hypabyssal rocks. Both of these rocks weather to dark, smooth hills or jagged, angular outcrops with a clayey, rocky topsoil. The metavolcanic and hypabyssal rocks are generally rippable with conventional earthmoving equipment to depths of only a few feet. The other rocks in the basement complex are the granitic rocks which have intruded the older rocks and are, to a large degree, mixed with them. The granitic rocks at the project site appear to be both tonalitic and granodioritic in composition. The weathering and rippability characteristics of the tonalitic rocks is generally somewhat similar to those of the metavolcanic/hypabyssal rocks. The granodioritic rocks on the other hand are generally rippable to greater depths than the metavolcanic rocks. In contrast to the weathering characteristics of the metavolcanic/hypabyssal rock and the tonalitic rocks, the granodioritic rocks commonly weather to rounded outcrops or boulders in a matrix of grus ("decomposed granite"). The granodioritic rocks are variable in their excavation characteristics but commonly contain areas which are rippable to depths of several feet to several tens of feet, yet, include localized areas of boulders or unweathered rock which are not rippable with conventional heavy equipment. SCS&T 9711027 February 28, 1997 Page 4 M The areas underlain by the respective rock types in the basement complex are differentiated on **" the accompanying geologic map. It should be noted that the different rock types are mixed and "** the areas on the map only indicate which rock type is dominant. Where the symbol for the ** granitic rock is listed first (i.e.: Kgr/Jmv), the area is underlain predominantly by granitic rock •« with lesser amounts of metavolcanic and hypabyssal rocks. *W «. 2) TERTIARY PALEOSOL (Tp): A zone of ancient paleosol is present in scattered areas of •m the project site (Village T). This paleosol is the result of the torrid climate and relatively stable geologic conditions that were present in the San Diego area during the early Cenozoic era. ,« The resulting ancient soil (paleosol) is lateritic and consists predominantly of low expansive ^ sandy clays and silty sands. A thin residual cap of ironstone concretions and siliceous pebbles m is present on much of the paleosol. The thickness of the paleosol varies from a few feet to a few tens of feet.*fm •** 3) SANTIAGO FORMATION (Ts): The sediments at the project site are represented by the•*«* sandstones and siltstones of the Santiago Formation. The Santiago Formation at the project site Mat appears to be characterized largely by grayish white, sandstones and minor siltstones. 4) QUATERNARY SANDSTONE (Qu): A small area of unconsolidated, grayish brown to -*w* yellowish brown, fine to medium grained sandstone was encountered at the far eastern portion «• of the northern boundary of the site. This material unconformably overlies the Santiago Formation and may possibly be reworked Santiago Formation materials. It is difficult to /^§distinguish the Quaternary sandstone from the Santiago Formation on the basis of their surficial characteristics. This unit was observed in other areas in the general vicinity and may possibly m be encountered at other localities on the project site during grading operations. * 5) OLDER QUATERNARY ALLUVIUM (Qoal): Older alluvial deposits consisting of grayish - brown to yellowish brown and greenish brown, medium dense, silty sands, clayey sands, and *» sandy silts were encountered at various locations at the project site. These deposits range in thickness from only a few feet to in excess of ten feet. <3°5# 6) YOUNGER QUATERNARY ALLUVIUM (Qyal): Younger alluvial deposits consisting of «« loose to medium dense and soft to medium stiff mixtures of clay, silt, sand, and gravel are present in the modern stream channels. These deposits range in thickness from less than a foot SCS&T9711027 February 28, 1997 Page 5 to an estimated maximum of ten feet. Due to their ubiquitous occurrence, the younger alluvial deposits are not delineated on the geologic map except in the larger channels. 7) ARTIFICIAL FILL (Qaf): Several small areas of man-made fill which have been obtained from on-site or nearby sources were observed. These areas are generally limited to small earthen dams, desilting basins and minor roads associated with previous agricultural operations and the existing water tank and pump station. Most of these fills are very minor in relation to the overall site and generally are not indicated on the plans included with this report. EXCAVATION CHARACTERISTIC GENERAL: The scope of this report is restricted to the discussion of the excavation characteristics of the hard rock on site. The report will focus primarily on the results of the air-track borings of each village. In addition, the results and interpretations of previously performed seismic traverses are presented in Appendix A of this report and their approximate locations are also indicated along with the locations of the air-track borings on Plate Numbers 1 through 19. AIR-TRACK BORING SURVEY: One hundred twenty nine rotary air-track borings were performed in areas where shallow hardrock in conjunction with deep excavations were anticipated. The borings indicate that portions of the site will require heavy ripping and blasting to accomplish the proposed excavations. The locations of these borings are shown on Plate Numbers 1 through 19. Logs of the borings are presented on Plate Numbers 20 through 148 and designated as Borings Numbers AT-1 through AT-129. Boring Numbers AT-1 through AT-82 and Boring Number AT-129 are located within Village Q. Boring Numbers AT-83 through AT-91 are located in Village L2 and Boring Numbers AT-92 through AT-128 are located in Village T. No borings were performed in Village R. The proposed and/or anticipated depths of the excavations at the locations of the borings are indicated at the top of the boring logs. A depth of ten feet was assumed for utility trenches within the streets and the proposed cut shown on the logs reflect this assumption. The equipment utilized for the air-track borings consists of an Ingersol-Rand LM-500 track-mounted rotary air-percussion drill rig. A four-inch diameter drill bit was utilized for the excavations. The drilling rate (feet per second) for the air-track drill rig is related to the density of the materials drilled. The denser the materials the longer it requires to drill. The rippability of the materials drilled is correlated to the drilling rate in graphical representations on the boring logs. The granitic and metavolcanic rock are classified as rippable (1 to 12 sec./ft.), marginally rippable (12 to 18 sec./ft.), probable blasting (18 to 22 sec./ft.) and blasting required (greater than 22 sec./ft.) based on the drilling rate at the specific boring site. Rippability characteristics are based on SCS&T 9711027 February 28, 1997 Page 6 excavations made with a Caterpillar D-9 Dozer with a single-shank ripper for overall mass grading and with a Caterpillar 245 Excavator with a single-shank ripper for trench excavations. It should be recognized that variations in equipment and rock conditions will affect the ease or difficulty in which the materials can be excavated. Some of the variations in rock conditions which will affect the effort required for the excavations are as follows: a) Fractures, faults, and planes of weakness of any kind. b) Weathering and degree of decomposition. c) Brittleness and crystalline nature. d) Grain size. For the purpose of this report the various rock conditions of each village will be discussed separately. VILLAGE L2 Village L2 is located adjacent to the northern, eastern and southern sides of the large, water tank, on the northwestern portion of the over-all subject site. Elevations in this area range from approximately 454 feet (MSL) to about 400 feet (MSL). Village L2 is underlain by a mixture of granitic and metavolcanic rock, with numerous surface boulders ranging up to approximately four feet in diameter as well as numerous hard rock outcrops. Excavations ranging up to 34 feet are proposed for this area. Nine air-track borings, AT-83 through AT-91, were performed within in the areas of the proposed cuts. The approximate locations of these borings are presented on Plate Number 1. The results of these borings are graphically presented on Plate Numbers 102 through 110. The results of these borings indicate that blasting will be required to achieve the proposed grades. All of our borings in this area encountered hard rock materials. The deptiis in which the hard rock was encountered varied from approximately two feet to a maximum of eleven feet below the existing ground surface. As noted in Borings Number AT-83 and AT-88, hard rock that may require blasting was encountered as shallow as four feet and two feet, respectively. Due to the hardness of the bedrock at proposed finish grades, it is highly likely that the cut pads will have to be undercut to facilitate trenching for footings and utility lines. In addition, it is also anticipated that the condition of the finished cut slope adjacent to the water tank may be such that over cutting and then construction the slope as a fill slope may be advisable, so as to produce a suitable slope with a 2 to 1 (horizontal to vertical) inclination. SCS&T 9711027 February 28, 1997 Page 7 ** ""* It is anticipated that a relatively large percentage of rock, in respect to the amount of fines, will ** likely be produced from the main core of this excavation. Many large floaters and boulders *** requiring splitting and/or disposing in a suitable area are anticipated. at VILLAGE Q tM .« Village Q (Lot El included) is located on the westerly portion of the subject site. Elevations range #m from approximately 445 feet (MSL) to approximately 250 feet (MSL). Previous brushing and „, agricultural actives have resulted in numerous piles of boulders being placed throughout this area. m In addition, numerous hard rock outcrops with naturally occurring boulders exist throughout this area. Some of these boulders appear to be in excess of eight feet in diameter. Proposed excavations — range up to approximately 46 feet. Eighty-three air-track borings were extended within Village Q. The borings are designated as AT-1 through AT-82 and AT-129. The approximate locations of*M these borings are presented on Plate Numbers 2 through 7 and the results are graphically presented on Plate Numbers 20 through 101 and Plate Number 148. The results of the air-track borings and the previous seismic traverses indicate that many areas of shallow, hard rock exist and will require d* very heavy ripping and/or blasting to facilitate the proposed excavations. *m •*» Three areas in particular are likely to produce relatively large quantities of over-sized rock, such as boulders and floaters, as well as require blasting to facilitate the proposed cuts. The first of the ^gg three areas consist of a portion of Tamarack Avenue and the proposed cut slope located south of the proposed extension of Harwich Drive on the northwesterly portion of the site (Plate Numbers 5 and ** 6). Numerous large surface boulders and rock outcrops along the ridges and existing slopes exist in this area. Based on Boring Numbers AT-47 to AT-54, AT-56 to AT-59 and AT-61, most of this ""* area will require very heavy ripping and/or blasting to achieve the proposed grades and the associated utility trenches within the streets. Hard rock that will most likely require blasting was '» encountered between the depths of four feet (AT-51) and eighteen feet (AT-52) within this area. « The second area is located on the northern portion of Village Q (Plate Number 6). This area <• consists of a ridge that trends roughly east-west, and has rock outcrops located along the ridge top. m Relatively shallow cuts are proposed for this area (up to 10 feet). However, based on Boring m Numbers AT-66 to AT-70, undercutting and/or trenching for utility lines will likely encounter marginally rippable and/or nonrippable hard rock, specifically on the westerly portion of the ridge. — Marginally rippable bedrock was encountered beginning at depths of three to ten feet below the existing ground surface and nonrippable rock was encountered at depths of two feet (AT-68) to '"*W eighteen feet (AT-70). The third area is located on the easterly to northeasterly portion of Village SCS&T 9711027 February 28, 1997 Page 8 »» ** Q (Plate Numbers 3 and 6) and consists of highly variable rock conditions. Several rock outcrops *** that are nonrippable exist within this area, with the areas in between consisting of bedrock that is * rippable to marginally rippable. It is anticipated that the conditions will be highly variable within ** relatively short horizontal distances. As noted in Boring Numbers AT-1 to AT-20 and AT-72 to « AT-76, over two-thirds of the borings indicate that marginally and/or nonrippable rock will be *» encountered prior to achieving the proposed grades. •*» m Some of the largest cuts are proposed for the area located on the southeasterly side of the large „ water tank (Plate Number 3). A broad ridge with a few rock outcrops covers much of this area. ,m Cuts ranging up to approximately 36 feet plus the additional depth (assumed 10 feet) for utility lines ^ are proposed of this area. Based on the air-track borings (AT-1 to AT-3 and AT-16 to AT-20) much m of the rock in this area, beginning at depths of approximately 1 foot (AT-19) to 29 feet (AT-18), is marginally rippable with some areas being nonrippable at depths of approximately 9 feet (AT-19)>m to 31 feet (AT-1) below the existing ground surface. The shallow nonrippable areas were located near rock outcrops. The existing outcrops and the areas within their immediate vicinity are the most likely locations that will require blasting at depths of approximately 9 feet, 10 feet, and 13 feet at •iM the locations of Boring Numbers AT-19, AT-17 and AT-3, respectively, while the other areas were <*» rippable to marginally rippable to greater depths. tar A separate area of Village Q (Plate Number 7) consists of the proposed commercial lot (Lot El) <4H located on the southwest corner of Village Q. This area is underlain by metavolcanic, hypabyssal and granitic rock. This area previously consisted of a topographic knoll that was approximately 30 "" feet high. The knoll has subsequentially been cut down and the lot has been rough, sheet graded "** so as to slope gently toward the southwest corner of the lot. Although an up-to-date topographic "*** map has not be drawn to show the existing elevation contours, it appears that proposed grades will — require cuts ranging up to approximately six feet on the western and ten feet at the northern portions " of the lot. The air-track borings indicate that the on site materials are rippable to depths varying •- from approximately two feet (AT-81) to 15 feet (AT-77) below the existing ground. The Boring «* Numbers (AT-77, AT-78 and AT-82) indicate that the deepest cuts can be made with conventional „ heavy grading equipment. Marginally rippable materials are likely to be encountered at depths of m approximately 2 to 5 feet in the vicinity of AT-79 and AT-80, respectively. The areas where the :m least amount of rippable material exists appear to be within the central portion of the lot. The m central portion of the site corresponds to where the deepest cuts were previously made to excavate the original topographic knoll. Based on the existing rock material on the ground surface, a large SCS&T 9711027 February 28, 1997 Page 9 percentage of oversized rock, and relatively few fines will be produced from excavations made in this area. Although some areas of Village Q are rippable to the proposed finished grades, as indicated by air- track borings AT-15, AT-18, AT-38, AT-43, AT-45, AT-46, AT-53, AT-54, AT-61, AT-62 and AT-76, it will be the excavations for deep utility trenches and/or undercutting of the pads that will encounter marginally rippable and nonrippable materials. VILLAGE T Village T is located easterly and southeasterly of Village Q. Roughly, the northern third of Village T (Plate Numbers 10, 11 and 12) is underlain by relatively thick deposits of sedimentary deposits of the Santiago Formation. The proposed cuts within the sedimentary deposits of the Santiago Formation underlying the northern portion of Village T should not present problems for excavating with conventional heavy grading equipment. The southern two-thirds of Village T are underlain by granitic and metavolcanic rock, and sediments consisting of ancient paleosols and Quaternary-age deposits. On the southern portion of Village T the granitic and metavolcanic rock is exposed along the outside perimeter while the sedimentary deposits are primarily located within the central portion. Proposed excavations within the southern two-thirds of Village T range up to approximately 38 feet deep (including ten feet for utility trenches). The proposed excavations within the Santiago Formation do not appear to present a problem as indicated by Boring Numbers AT-93 through AT- 97. Air-track boring AT-111 (Plate Number 17) indicates the paleosol is rippable to depths of at least 22 feet below the ground surface. However seismic traverse S-8 (1988) located near AT-111, indicates marginally rippable to nonrippable material at zero to five feet below the existing ground surface. In addition, Boring Numbers AT-112 and AT-120 to AT-123 (Plate Number 19) indicate that the paleosol will be marginally rippable beginning at depths of approximately three to five feet below the existing ground surface. It should be noted that due to the clayey type of soils comprising the paleosols, the reliability of the air-track borings is suspect. Due to the clayey soils blocking the air passages, the air-track drill rig typically will indicate that the soils will be more difficult to excavate that they are in practice. However, when the air-track borings are taken in conjunction with the seismic traverse, and they indicate relatively the same results, it would be prudent to accept the more conservative conclusion that the paleosols will be marginally rippable. Although blasting will probably not be required, these soils may be slow and time consuming to excavate with SCS&T9711027 February 28, 1997 Page 10 conventional equipment. Light trenching equipment will experience problems excavating the paleosols. However, these soils will most likely break down into a material that will contain a relatively large percentage of fines in relation to the percentage of fines derived from marginally, rippable granitic or metavolcanic rock. The granitic and metavolcanic areas are notable due to the numerous boulders, and hard rock outcrops. The surface boulders, generally, appear to be less than eight feet in diameter and generally are in their natural state. The areas underlain by granitic and/or metavolcanic rock vary from rippable to nonrippable bedrock in a relatively short horizontal distance. It was noted that Boring Numbers AT-100 to AT-102 (Plate Number 14), drilled within the immediate vicinity of existing rock outcrops, generally indicated that the bedrock is marginally rippable at relatively shallow depths (eight to nine feet) while Boring Number AT-101 drilled a short distance away indicated that the proposed excavation (25 feet) could most likely be made with conventional grading equipment without blasting. The proposed excavation within the vicinity of borings AT-115, AT- 116 and AT-117 (Plate Number 18) will require blasting and is likely to produce a relatively large percentage of oversized rock and boulders with relatively few fines. In addition, it is anticipated that the finished cut slope within this area will be very rough and it may be advisable to overcut the slope and reconstruct it as a fill slope so as to have a suitable finished slope with a 2 to 1 (horizontal to vertical) inclination. VILLAGE R . Village R (Plate Number 8) is underlain by Tertiary-age Santiago Formation and Quaternary-age sedimentary deposits. The proposed cuts within this area will expose sediments that are readily excavated with conventional heavy grading equipment. No air-track borings or seismic traverses were performed in this area. CONCLUSIONS Based on our recent air-track borings and a review of the previous seismic traverse surveys, it is our opinion that many of the areas in Villages L2, Q and T are not readily rippable to the proposed grades. Heavy ripping, which can be very time consuming, and blasting will most likely be required for some of the areas. Village R and the northern portion of Village T are underlain by sediments which are anticipated to be rippable with conventional, heavy grading equipment. SCS&T9711027 February 28, 1997 Page 11 As a summary it is noted that eight borings of nine in Village L2 indicate that marginally rippable to nonrippable materials will have to be excavated to achieve the proposed grades. Fifty-four borings of eighty-three within Village Q indicate that marginally rippable to nonrippable materials will have to be excavated to achieve the proposed grades. Twenty-two borings of thirty-seven in the southern two-thirds of Village T indicate that marginally to nonrippable materials will have to be excavated to achieve the proposed grades. Although some areas are rippable to proposed grades it is anticipated that many cut and transition pads in Villages L2, Q and T will require undercutting to facilitate trenching for footings and utility lines. In several areas of Village Q the materials are indicated as being rippable to the proposed pad grades. However, the undercutting of pads and excavating for deep utility trenches within the streets will require heavy ripping and/or blasting. Air-track borings AT-15, AT-18, AT-38, AT-43, AT-45, AT-46, AT-53, AT-54, AT-61, AT-62 and AT-76 in Village Q are specific areas where this condition is likely to occur. Areas requiring blasting in Village L2, Village Q, and portions of the southern section of Village T will generate primarily angular rocky material derived from metavolcanic and tonalite granitic rock (Jmv/Kgr). This material will require mixing with fines (silty, clays and sands) prior to placement as compacted fill. Fines will be primarily generated from surficial soils, the northern portion of Village T, Village R as well as areas underlain by granodiorite granitic rock. Keeping the proper mix of rock and fines will be an important consideration during grading operations. Based on this consideration, it is our opinion that Village L2 will require importing of fine soils to achieve the proposed grade. Village Q may also require importing from another village. In addition to the angular rock fragments derived from excavations that will be blasted, large surface boulders and hard rock floaters within otherwise rippable materials will be encountered. The surface boulders appear to range up to approximately eight feet in diameter, however below ground surface floaters may range in size up to and exceed ten feet in diameter. The location, quantity and size of floaters cannot be determined or estimated with any reasonable reliability. The paleosols (Tp) located in Village T are anticipated to be rippable to marginally rippable. Although portions of these soils may be rippable to marginally rippable it is anticipated that excavating these soils with conventional grading equipment may be slow and time consuming. However, in contrast to the marginally rippable granitic and metavolcanic areas the paleosols are expected to produce a larger percent of fines with very few, if any, boulders and floaters. VILLAGE Q AT-1 PROPOSED CUT: 44' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT LOGGED BY: JRH DRILL BIT DIAMETER- 4' LM-500 SURFACE ELEVATION: 424 PROBABLE BLAST DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X^r=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUW8E3: 9711027 DATS: 02-20-97 PLATE NO. 20 AT-2 PROPOSED CUT: 46' LM-500 LOGGED BY: £ UJ Q 1" ' 5 ~ " o GL U V A T I • » " 10T 11 1 15 " - - 20 — 11 1 25 - *3 n - 35 40 T 45J1 1 JRH nRJLL BIT DIAMETER X«' - 4" X SURFACE ELEVATION:430 PRORAR1 F BLAST »BLAST 111 1 11 1 111 111I 1 1 1 1 i I 1 1 SsIi ii i 1 i *v 1 1 1 1 |S / V M Mr 1 L+\ \ i PNi i iiii Lj-H CT ii 11i1 i ! ^-* r-t-N i 1 1 1' 1 1 1 1 1 | 1 1 1 1i 1 t 1 1 | ,1 1i |l | 1 1 l I 1 i l l 1 1 i MIM1 i 4 1 ' >, -^ •s, V 5 *s l i 'V^. ^\ | 1ST s. i , *s M> *ta •* ^~ *- u- 3 &* ^^ 9~ ^ ^ — —- ^ ^m .^ •^i ••• *— — — ^ \ =s :=: — . •^ —a =*- ^ •^•m. ••^ ^^ ^ ^ ^ m^ «• 9 — w — **. \ \ \ «— | ••• •—•• ^7* •^ 9* i "2? 1 _J 1 ^H «^ \ \ \i 1 1 1 1 I 1 i i 1 1 1i i i i ii1i 1 1 ! ! 1 1 1 11 1 i T 11 i I i i i l ii !1 ! \ l 1 !! ii iv iiiii 1 ! 1 l l 1 1 i i 1 i 1 i ~1 i ' ' ft)20 DRILLING RATE ( SECONDS/fOOT /V SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBEH : 9711027 DATE: 02-20-97 PLATE NO. 21 AT-3 PROPOSED CUT: 31' LM-500DfULLING DATE: 02-18-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRti DRILL BIT DIAMFTFH- 4' SURFACE ELEVATION: 423 20 ~3b~ DRILLING RATE ( SECONDS/FOOT ) S\^ SOUTHERN CALIFORNIA <^&X SOIL & TESTING, JNC. CALAVERA HEIGHTS SY: JRH JOB NUMBSfi: 9711027 DATE: 02-20-97 PLATE NO. 22 AT-4 PROPOSED CUT:18' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT:LM-500 LOGGED BY i-a.ill Q - 5 10 zo EL E V A T I JRH DRILL BIT DIAMETER- 4' \^^ j_^Jte ^ ^ SURFACE ELEVATION. 416 PROBAR1 P RL AST 1 'BLAST '. -i 1 5 -- [ T " ->n~^ 25 - ' _ - _ _ *3n 35 — 40- 45-i : T 1 1 j i 1 | | 1 ! 1 1 1 | 1 1 1 1 1 1 tl X V -? ^ V J/* >w ^ • •» •• «s: — - • —. ^ I • •M. P- m mm ^M ••^•^^IK — • ^•V ^•B =••••••• — . ^^«-•— I I i I I | I i D 20 3b 4^ DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA ^ry SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 23 AT-5 PROPOSED CUT: 5' LM-500 LOGGED BY DE P T I - 10- zo EL E V A T I JRH DRILL BIT DIAMETEF /* • . .. 15 20-J ,_?«;! • : i T in - „•} M — 40- 4*va- i7T I- 4" ^ « SURFACE ELEVATION 414 PRORARI F BLAST 1 >BLAST i i iii I 1i i •e r^E V, •^ !•«• ^««* — • ^= •1-M ^— M ^ ^a — — •i mmm «. — < - — • . I^BB «e »• ••i ^* •^ M^l ^— *^« ^fe — ~. -— •H. ^ •M, — - AI ^ >• . •• F 1 1 I 1 ! ~~f i 1 -TO 20 ^0 4*0 DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA \=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 24 AT-6 PROPOSED CUT: 23' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT:LM-500 LOGGED BY UJa zo EL E V A T I JRH DRILL BIT DIAMETEF <fi*<O A 1- 4" ^ SURFACE ELEVATION. 404 PRORARl F BLAST BLAST 5 _ 10 15 ;• : 20-1 25 -jn_ . ^i ; 35 l 40- 45-. '• 1 T 1 1 i 1 .—• ^ ^ tl \ => V, == Sy ^M "*• \^-* s ^-• ^s h^- ^^^. >• * •v. ^* ^ "^^ ., 1 1 D 20 ^b 4*0 DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 25 AT-7 PROPOSED CUT: 22' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAMETER- 4' SURFACE ELEVATION: 390 —20 — _25^ -30^- _35^_ j_ —40-L T I I I I 20 DRILLING RATE ( SECONDS/FOOT ) SOUTHERN CALIFORNIA SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 26 AT-8 PROPOSED CUT: 7' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT; JRH LM-500 LOGGED BY:JDRILL BIT DIAMETER:SURFACE ELEVATION: 388 I- LUa 5 _ 10- 15 - L 1 20J 25.1 j -30 ,. 35_i I 1 40 1 15T I 4. I7T zo$> UJ_ju r.rr L <<^.1>v £T I i >V I ^ I I X ^ I ^ " tl ^ ••* D ««J ^^ .(r^ vt ^ >N? 2 i • D f , »FI a B E A 3L 31! B .A 3 L .S E T E , 3L./5^5;T i i i 4t) DRILLING RATE ( SECONDS/FOOT ) SOUTHERN CALIFORNIA SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 27 AT-9 PROPOSED CUT: 18' LM-500 LOGGED BY DE P T I - " ml " 2o UJ_j UJ JRH DRILL BIT DIAMETER <<s X L: 4" / SURFACE ELEVATION 388 PROBABLE BLAST •BLAST _ •r• • L 1 5 ; : 20 -3 75 . - f TA i 35 I 1 4fi ._ 1 — fc\ 1 T | 1 1 i i / \ «^, •y ^^ •s •^ •«. •=: ^ -^ 1 •s,i «< — , — ' +*^s b^^ H. ^ •• > —.p- •^ ^ M = ft ^j! *«* 7 h^ ^ ^•B «• ™— = ^ — •• *— =&• — «•5 »J F— I i -H ii I tb 20 3d 41! DRILLING RATE ( SECONDS/FOOT ) >/\ SOUTHERN CALIFORNIA <*=&/ SOIL & TESTING, INC. D CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 28 AT-10 PROPOSED CUT: 9- DRILLING aAT£:02-11-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 40° t- 01a 5 _ 10 1 C 1 •>n . .4I 2Sl \ *3n_ i 35-i i T _l1 40 J. 4S--i i 1TT zo 5> LU_1 LJ 1rri r rr . <<£ ^J,^?^\r < >V 1 I <> t »«, D >. ^ ^ ^ X^ ^^ .( ?* /V ^^ ^^ 3^ —• xt ^ -^\ *-^ NT" >> s •^ «% » i s^ ^B* =1 •^ x* 2 i » «M (^i* r-s. 0 •« F . »R 0B E A JL ^ B .A D u iS E T E . 3L./skS i ,T i iiii ii i i» i 4t DRILLING RATE ( SECONDS/fOOT ) SOUTHERN CALIFORNIA SOIL & TESTING,INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 29 AT-11 PROPOSED CUT: 12' *LM-500 LOGGED BY t- UJQ - zo EL E V A T I JRH nRILL BIT DIAMETER X - 4" ^ ^ SURFACE ELEVATION 410 PRORAR! F HLAST i •BLAST 5 : : 1^ r " i -1 C. ; - 20 J 25 - 1 ~ «« Tn i 35 _ — * 40- 4c_ -^4 !1 ; T _U•^ xo-v>, i =: ^ ^; i i 1i1ii i iI i i i 1 •««,^ ^ at t =•M,••»•k»*-m =•^HM. ^^ > •«: «- .«•>••. i i I ••^ ^^y ^,• MH • •MM «= —.«w ^ ^M — -^ •^V r» . 1 1 1 t 1 1 1 tt) 20 ^D 4TJ DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA \-H~X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 30 AT-12 PROPOSED CUT: 11' DRILLING DAT£:02-11-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY Q ; ; 5 zo EL E V A T I JRH DRILL BIT DIAMETEFi X L: 4" X1* SURFACE ELEVATION 410 PROBABLE BLAST 1 »BLAST T• T ' 1 15 — -L T: I i i on i 35 'i: i 10 II - ^1 1 T ii i ii mm ••— 1•B i i MM tJ =a "MMl BB = I tmwm MM!•—Ml MMZ •™«MM1 •1M.MM. •• — • «• _• BM. —— ' y BMM _«• — - "^/ Ml MV« •i M_C •• »MlV = Of m msi M^ _«fl •BC M«— M.MB — — • MM! BEE •MB — — 1 MMl ••Ml iMMl SS — M. -« —P. ••«• MMM g?T » •M* •M« M«V ^M« • MM MM! e= Ml* »-. -•* , MV1 •C ^ ••I •^P^1 ••H, ••J •• — — . 1 =9 mmmmmm* 1 «— D 20 ^D 4t) DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA ^=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 31 AT-13 PROPOSED CUT: 12' LM-5001 -QGGED BY: nj o | ZJ t T ' - c T- T 1 n ~ 1 c: \ 1 - 7=; I - T A 15 • Ant J.T 45-7 i JRH DlRILL BIT DIAMET1 ^^^^^ ^^^jfc ER- 4" / SURFACE ELEVATION:414 PROBABLE BLAST » BLAST i ! s/ S ^ »^M ^** — S^ | I ™™« ,•!•* r*T-4~^ MK — ^ryfyr 1 i I*1*^•^ ! 1^- I 1 ^ I I i <$>SOUTHEF SOIL & ^ = V"•^ ^H •: I ^^ P^ | I I I ^•n9 i I i i I I ii i ii f i t I fb 20 3t) DRILLING RATE ( SECONDS/FOOT ) {N CALIFORNIA TESTING, INC. xD CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 32 AT-14 PROPOSED CUT: 13' LM-500 LOGGED BY- DE P T I - c 10 zo EL E V A T I JRH aRILL BIT DIAMETEF X " I 15 - ; : 20 J 25.1 - 1 1 to • Tn 11 " 35"1 - 4O- 4*1 - 1 T • 4" X 1 1 1 1 1 1 1 1 1 •v _j 1 1 1 1 1 1 1 1 1 V S s •»• «s — •^ ••• •^ ^~ K= S ™— • ^v ^" *• ^^ ^•* •i«» iB^W »— ' •— • = «•• / ^M •^ •1 X • ^* I" ^••1 9Ms ^-* ^Mi >*• •I— I :^ SURFACE ELEVATION 414 PROBAR1F BLAST i >BLAST •• •e ^•H •— •••^ rt =» = »»• ^^— •• n^M • »•_« . 1 1 1 1 1 3 20 ^D 4b DRILLING RATE ( SECONDS/FOOT ) >/X SOUTHERN CALIFORNIA \=T^ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 33 AT-15 PROPOSED CUT: 8' DRILLING DATE:02-19-97 ORILLINQ METHOD/EQUIPMENT; LM-500 LOGGED BY: JHH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: t- lil ^ .. . 5 ~r 1 0 J. 1 5 a 20 1 25 1 10-1 I 1 35 'i I i 1 40-L"T 1 1 1 15 'i 4 7 T 5 5> UJ_lu I * $.1Vr^T <•\ ^ V c, k,. ^vky '"^ f -*. b •»^-/ #P i ,c*s-^ ; \^ ^T ^ 2 i • D F . •R 0B £ A JL 31 B .A b Li ,ST l £31 i 1 ./s i 1 ^ST fii i i \ i1 if i i ii i i _ !1 41 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOSNUWSSH: 9711027 DATE: 02-20-97 PLATE NO. 34 AT-16 PROPOSED CUT: 26' DRILLING aATE:02-18-^7 DRILLING METHOD/EQUIPMENT; LOGGED BY: «*RH DFULL BIT DIAMETER: 4~ LM-500 - *13 DHILUNG RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA \=J=*} SOIL & TESTING, INC, CALAVERA HEIGHTS BY: JRH jos NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 35 AT-17 PROPOSED CUT: 13' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY UJa - c. 10 za EL E V A T I JRH DRILL BIT DIAMETER- 4" /*/ f SURFACE ELEVATION F i • • 413 'ROBABLE BLAST BLAST - - -.15 — r T - 20-! - 25~ - i^ on I i 35 i T Il 40 45-.i; 5 I >• ^.-* X •«^ ^ \ I LXi ! ^| i i i i i _j It mm V ^Ml•••*m =•^•^«MB ^MM ^ £^3 — .c=— ^ » .. 1 i 1 1 i 1 1 1 6 20 ^t> 4t DRILLING RATE ( SECONDS/FOOT ) SOUTHERN CALIFORNIA SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 36 AT-18 -Ml PROPOSED CUT: 37' DRILLING D ATE:02'1 8-97 DRILLING METHOD/EQUIPMENT; LM-500 LOGGED BY: JRH DRILL BIT DIAMETER: 4" SURFACE ELEVATION: 410 DR1LLWG RATE ( SECONDS/foOT ) /\ SOUTHERN CALIFORNIA X=2&X SOIL & TESTING, INC, CALAVERA HEIGHTS BY: JRH J03 NUM6E3: 971 1027 DATS: 02-20-97 PLATE NO. 37 AT-19 PROPOSED CUT: 9' LM-500DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DRILL BIT niAMFTEK- 4" SURFACE ELEVATION: H LLJa ** ~" m I 15 - r i ->n^u_. ?5 — 3D— ric 1 1 1 J. in I10 I 1 15'_!.i' 111 zo5 UJ_i LU '• • - - ' <£ < tf1 ^ ? i>v^ Vb k*^ ^ r r \> *x < 3^ ^_st ^r^ •— .•H .. 2 i • -KM 0 *— F ^*« »R •«« O T V B E A JL 31 B A D LI ,ST f3L.ft&,T i iii 41-cu ^» DRILLING RATE ( SECONDS/FOOT ) SOUTHERN CALIFORNIA SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: Q2-20-97 PLATE NO. 38 AT-20 PROPOSED CUT: 32' DRILLING DAT£:02-11-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DHILL SIT DIAMFTER- 4' SURFACE ELEVATION: *02 20 DRILLING RATE W SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X=j=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH J03 NUMBED: 9711027 DATE: 02-20-97 PLATE NO. 39 AT-21 PROPOSED CUT: 30' LM-500 LOGGED BY 5 ? 5 i g JRH JDR1LL BIT DIAMETEFh 4" •i "O^ X* - 1 1 T - in — 15 - - T t-20 ' 7S — ID 35 ...40 45 'i 4. IT i i i , ^/ 1X SURFACE ELEVATION F T » 380 'ROBABLE BLAST BLAST x.w>4-i U. i i ^. t^i -, i i ^ I Xii i ^*r isk l ^1 taP ^ **X .*••" *^ 3^ ^^ 1 i 1 tj •MM / 1 H~ L>^ij^j 1 1 Ns. W [ S^ > ^=a »« _i M-l 1 1 1 1 1 1 1 1 i ii [ i i i i i i^r 1ii i i i 1 i ii i rii _ i i i 1 T i i ii i b 20 3b 4t DRILLING RATE ( SECO«DS/fOOT /\ SOUTHERN CALIFORNIA X=j=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOSNUMBES: 9711027 DATE: 02-20-97 PLATE NO. 40 flM AT-22 PROPOSED CUT: 8' m LM-500L L 1011 1 INK DAI t: "•«•- ' 3-3 ' U«iL_i-tTN<a ffltz ir nr^^Fn RY- JRH DRILL BIT DIAME H- LJ n EL C V A T K __[ T 1 c 1_i •tn ~"— 10 —_ " " — 15 — >— ^U — — -£-D — • - 1 — 30- - - _35 — — — AU— - * 45- - l_ 1 7T XX ii ii ' ! l1 1 i | il ii i |ii iI I. Mi ^l . 1 1 1 1 i il! l-l ^1 •> 1 I | 1 | i ^ i i 1 ^Sn1 1 -i — /M i i l I iii i iI i i i .Mil1 i i j j ^L l M 1_v . i 1 i r-s.1 i MM. 1 -^ III 1 1 1 1I 1 1 1 1 1 \ ii I 1 i i i i l l 1 1 i iIii M 1i III -Ti 1 | 1 l i 1 1 i iii 1 1 i i 1 i II M 1 III j 1 1 L_l III 1 1 1 MM1 i i l i 1 1 I l i 1 1 1 ii i i1 1 l i 1 1 1 1 1 1 1 M i i i i 1 1 l I I ^ 1 __L_1 l li i i l il i i i i_ i TrR- 4" SURFACE Fl FVAT1ON' 367 x^V <?>& *** i 1 I i i 1T ! 1 l ii _U1 « 1 1 1 1 1 1j i l J l i i _j i_ I l 1 ii ii 1iii i 1 ii l 1 i i_i 1 1 i1 l 1 1 1 I Vb SOUTHERN CALIFORN > SOIL & TESTING, INC. PROBABLE 1 1 — * _L__ 1 ll i1i \ i i1 i li ! i \\ 1 1 i i 1 J 1 -Jrr\ ii ii i 1 i l _L BLAST BLAST i — I 1 1 i i 1 i 1 ~r i iiM l ... ! 1 l l l i i 1 ~T~ ii ii ii M i i i_rr_ r i 1 Ml 1 1 1— i — i — ' — i — —1 1 i i i ' i lj i r^M M Mi i ii i i I 1 i 1 ii i_— . >— ~f ' Li • " —i i 1 i ; ! ! 1 11 i 11 i i Mi ii r 1 i 1 ! ! | ..... M i — — i i l li i i i 11i i 1 1 i "T~ 1 i l i1 20 DRILLING RATE ( SECONDS/FOOT IA CALAVERA BY: JRH JOB NUMBER: 9711027 i 1 i 1 1i i "T" ! -l 1 1i 1i i1 i 1i— r~i —"I ~T~i i 1 1] |i i oD ) ii 1 , . ! / i i "~1 1 1 1 '1 1 1 i ' \ 1 1 1 1 1 1 1 ' i 1 l 1 1 I 1 1 1 1i!!'1i ii i 4TJ HEIGHTS DATE:02-20-97 PLATE NO.41 - AT-23 PROPOSED CUT: 9' LM-500 LOGGED BY: UJ _ : : -i n - 5 5> _l i ic i \ ! 1 T 20 ! i I 1 I 25 '1 I 1 I -,n_L 1 1 1 35 '1 1 ! 1 An 1 i 1 ! 45^ 7 T JRH ^X DRILL BIT DIAMETER ? - 4" X ^ SURFACE ELEVATION 349 PRDBAB1 F BLAST » BLAST 11 1 ill! 1 1 ii i 1 1 11_.T 1 1 ji !1 "~~ 1 1 1 - i i_— f— rr~~r*>^ 1i^^•^- -ii \ \^'ii 1 C\ 1 1 II \S\ \ 1 I 1 1 l%sL 1 1 1 i 1 I/I 1 i 1 i i I 1 1 i i 1 | 1 1 | 1 1 1 1 1 1 i 1 1 1 I 1 1 1 1 1 1 I1 i 1 1I 1 \ l - = > < 11 Mi i \^r \iii / 'LI 1T r— i i1 I i i Ir~ iii j | 1 1iii Mil 1 i li ii l ' i 1 1 li i i iI | 1 1ii i 1 ' 1 1 I i1 ti i » 1 •vl1 1 -i _i ! i I l i1 i 1 i .j. /T 1 -— 1 1 1 i | ^ 1 i l | I 1 1 1 i 1 1I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 _J I 1 1 | 1 |i 1 i 1 1 i i l 1 11 1 |l 1 1 1 I 1 l l | i i 1ii i 1 !i 1 i I i i i 1 1 i i 1 l1 I i ! iI 1 i11 1ij i 1 1 i ii l 1 i i ii i i i1 • ilii i 1 f ii i 1i i| ' M1 M -i i 1 iI !i ii i i i 1 1 1ii 1 i1i i i i i i i [ i il i il ii ii ii ii t ii i il i 1 ' •l l iiii i i !i i 1 11 i1 ii i ii 1i 1 i ! liii i ii i l i 1 1 li i | ! ! 1 !1 1 1 ii i 1 I iii 1i i 1 i 20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=y=/ SOIL & TESTING, INC. CALAVEHA HEIGHTS BY: JRH JOB NUMSE3: 9711027 DATE: 02-20-97 PLATE NO. 42 AT-24 PROPOSED CUT:26' Opn i 1MK DATE: 02-12-97 DRILLING METHOD/EQUIPMENT; LM-500 LOGGED BY P 01 ^ O <: zi LJ JRH JDRILL BIT DIAMETEF X•f 1- 4" ^1^ SURFACE ELEVATION 412 PROBAB1F V BLAST BLAST t 1 T T 5 T 10 1 5 1 i 1-20 ! i 25 . 30 - 35 - 40- 1^T : }TT I i ii I I 1 M M i II I I I I I I II I i 1 l l M 1 l II M 1 1 I I I I ! I I MM I I 1 1 y ! '/r*C 1 &L/T I I I IX f 1 1 1 1 1 i — 1 1 l TV i I i I I I I i I M iii I I ! I I I I Ii I I I I I i 1 1 1 1 1 /, ! 1 1 1 i 1xi i ii 1 ii ii i ill I I I I I I I I I I I M | 1 V i w 1y \!_s/i _L i 1 I III IIi I I i I i I I i ii ii Ii i I I I I I I I 1 1 11 1 1 1 1 11 1 l l IM III III II III II 1 M II Ml 1 i 1 1 1 1 l 1 | 1 1 l j 1 1 1 1 1 ii 1 1 1 l 1 l 1 1 Mil MM IIi i i i i Ii 1 1i i I I I 1 i 1 1 I 1 ii 1 1 1 1 1 ll 1 1 1 1 1 1 1 1 1 1 1 i i 1 1 j 1 i iiiIiili ii i1i1i ! 1 1 1 1 l1 1 1i i 1 li 1i11 i I1 1 i il I ii i i 1 ll i 1 1 |1 1 1 1 !1 l i 1 1 1 1 1 1! i i I !1 1|1 1 1 _[ 11 1 1 i 11 1 1 11 1 1 i i ii ii I i i 1 > 1 1 1 i ii| 1 i 1i 1Ii 1ii 1 I i | I 11 T ri 1 i II 1 1 1 1 1 | Mil i 1 1 i fi ii i 1 1 II i 1 I 1 1 i 1 1 1 1 1 1 1 I 1 1 1 Mil I I i i I i Milll I I I I I i iii III) I ii I l 'I I I lMil i L— f ! L_ i 1 1 1 1 i 1 1 1 1 1 i 1 1 I i 1 1 1 1 1 | 1 1 1 1 1 j 1 1 1 1 l1 L 1 l i i 1 1 l i ii I I i 1 ' 1 i 1 l 1 1 1 1 1 I 1 ! f ! 1 Il l I II i I i ii iii 1 I i i i i1 1 "1 i 1 1 1 1 1 1ii 1 1 i 1ii 1 1 11 | i >i ii i i i l i 1 l i "tt 20 DRILLING RATE /X SOUTHERN CALIFORNIA ^f=7 SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 43 AT-25 PROPOSED CUT:22' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT: LM'5°° LOGGED BY: JRH DRILL BIT DIAMETER.SURFACE ELEVATION: 43Q_ 20 3T) DRILLING RATE ( SECONDS/FOOT y\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH joa NUMBED 9711027 DATE: 02-20-97 PLATE NO. 44 . AT-26 PROPOSED CUT: 12' DRILLING DATE;02-11-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY i- 3a 5 - 10 — - 1 5 "T 1—20 - 5 r- LU _J JRH J3R1LL BIT DIAMETER^ _4" ^^^C^* ^ ^X ^HO?ArF F1FVAT10N: 443 PRDBARi F BLAST BLAST . ., . ..... . ,. ,, . — - | 25 1 30 35 40 - " 4sl- 4T7 T i i i i 1 i I ,i i< ^-«.i 1i -—l i rs^i l 1 i^ 1! \ ^« <• i ^J-^ — 1 i ""^X*.1 1 \i i 'iii ji i iiiiiii iii N, ,1 ^** i ii .ii ! il !l i 1 i -f r>. I 1 1 I 1 1- 1 , i i I i I i 1I i i • ; i i i 1 i i i ii i r i 1 1 i 1 1 i ii l 1 1 i i | 1 i 1 J 1 1 i 1 I ii b 20 sto <t DR1LLWG RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH jos NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 45' AT-27 PROPOSED CUT: 21' LM-500 LOGGED BY: V— UJ•*-\ _ 0 <>•JJ_J UJ _ _ _ 1 0 1 cr _ •20" 25 -5n " 35 - 40 T I I 45i_ 4i>- 41"I T JRH nRILL BIT DIAMETER X*' • 4" X^ ^** SURFACE ELEVATION 440 PROBABLE BLAST i»BLAST ,i i i i M! i_ Lr^T i X^ I I | f | I | III I I l I I ! I 1 1 i i i1 1 i 11 11 1 I ! MM I I i M i | I I I I _J-4— TT i r^SJ ' ^ S f-m I I X\ j i I l^i l l III i i j | i ~ M MM i ! i i M^-.l 1^-/]I iI i ^*" * l!i 11 I I Iii I | ' I " l 111 1 | I II[1 i i i MiI M Ili •1 11 1 ii 1 1 Mi 1 ii M II 1 1 ' 1 1 M M M i 1 M M Mi i i 1 1lj 1 II ! ' *I I 1 lIi .» i ! I Ii J j__ «=_- 1— I I Ii i P-J I i Ir I I I I I 1 •^M —•— ' I I 1 II J I I I I I I = IM" 1 | | I MK •— KM 9* | 1 Hi T 1 i I I I i il I I I I 1 1 l1 I 1 I I I I I I i i 1i i I !'1 1 i | I I 1 Ii l ' 1 i MB ' 1 1 1 1 I 111 1 1 1 1 | 1 1 1 1 1 1 1 1 I 1 1 1 i ' ii l i 1 l 1 i 1 i Mill i 1 i 1 | 11n i1i i 1 1 1 1 I i f | ' i ~r f1 i !i 1 1n i r i MM1 II1 1i 1i i j 1 II i 1 1 1 i i 1 1 i. I 1 1 f 1i ji ii ii i 1 [ 1 1 1 11i1 11 1 1 1i i1 1 1 1 1 1111 11 1 J 1 1 11 11 1 ! i l1 I1 11 1'1 1^b 20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X^p*/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 46 . AT-28 PROPOSED CUT: 14' LM-500 _OGGED BY: •- UJ^-\ 5 5 in_iin JRH D*m_L BIT DIAMETI Xo^ «? =n- 4" ^^& ^ SURFACE ELEVATION:445 PROBABLE BLAST •»BLAST i : :: c "" ~. 1 n — -1 C 20 25 — 30 — - "3C - " -<M3 A^—i r N 1 1 ^L-. s s 1 VK; 1 i I i i i i i I •^ 1 1 i\l I XTiNw 1 I i iTihi i l i i i l i i Mili 1 i i ii ii i ir I i ;i ii li i!i |iI 1i i i i ii ! 1 1> ! ii | ii l 1 1 1 1i ii | ! ,d*i " ^ s.s 1 —1i_J— kj„ ^s?i *i ii ii 1 1 1 1 LJ-iii 11 1 il 1 -«, > •^, 1 ii 1 1 1 ^~ -4 — — 1 |N-ii i .. 1 i i i ii 1 i , I ii Ii iii I i i ii i ii ii . i i1 ii ii 1 i i 111 1 I 1 i 1 1 I 1 !n 1 1~n ii i i 1 1 1 I 1 1 1 1 1 1 i i 1 1 1 ' 1 [~ ii1 1 1 ii i''^ !i ~T~iii i 'i 1 i 1 1 1i i i1 1 1i 1 1 1 ! ' 1 1 1i ii i 1 l 'i i I i 1 r~ ii 1i __ r i i iiii l il 1iiiiii r 20 4TJ DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA <^K> SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMSErT. 9711027 DATE: 02-20-97 PLATE NO. 47 AT-29 PROPOSED CUT: 20' LM-500 LOGGED BY- JRH P 5 ^ o <:> _ilil 11 11 c; T 1 I 10 ""ii -it: r i1 1 20 !1 ?s "" — •3 c "" 1 40-1 i I 1 4<J ~ JDR1LL R1T niAMFTER- 4" SURFACE Fl EVAT10N: 438 X•/ i 1 1 1 M 1 1 1 Mi ii 1 i 1 i 1 i ! i11i i ri 1 i -h_J 1 i ii i ii 1 i i i1 11 1 1 1 i ii \/1 M 1 i l> 1 M Ml i ff*- — ks 1 i i Mi i i 1 1 I Ml |II i ill | l l 1 i ill il l l ii M I MII i II 1 |1 1 | 1 1 1i 1 1^. TINi ii ! i iii 1 1 1 i I 1 i 1 l 1 1 1 1 1 1 i 1 i 1 1 1 1 ] l 1 L 1 i Iiili i l l l l 1 l 1 1 1 III II 1 Ml 1 | i Mil 1 1 1 M 1 M1 1 1 1 1 1 11 1 I i i 1 l II i i i '"! 1 II 1 M 1 1 1II II M 1 1 1 1 1 1 1 1 1 i i l i 1 I 1 i 1 1 1 1 | 1 1 1i i 1 1 1 1ii I 1 | ii 1 / I 1 1 ! 1 —»=. 1 =•—_ _j — i-Hr- •Tii ! ' 1i l 1 N i "SsrS^J1 7l ^ r"i 1 1 1 1 11 11 !11i i -^ 9^ !MI1 i 11 1 1 11u 1 1111 [11 1 % PROBABLE BLAST » Ii i I ii i ii i| 1i i BLAST i i ii i l ii 1 i i 1 rI ii i1i i !i rr i i i i ii i i 11 ii ii 1 1i li1 i .._1i1 •• i ii ' i 1 i FT" \ l In rr~ Ml 1 i iii M~ !i fi r~ii i 1 !1 i L.i ii ii i ii ( iii iiiii ii i ii iii i ii l/ ii 1i i i MMi i ii i 11 1 1 1 1 1\ l i in r~i i1 i i ' i_ j_ i ii ii ii ii ii ii ii i ! ! 'i i i i 1 1i I 1i i1 i T^ 1 ! ' li i i 20 DRILLING RATE ( SECONDS/FOOT ) 4*0 /\ SOUTHERN CALIFORNIA ^T=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 48 AT-30 PROPOSED CUT: 21' DRILLING DATE: 02-18-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY u_ UJ 6 '< _i UJ JRH _DRILL BIT DIAMETER^ 4" X*''X^ SURFACE ELEVATION 436 PRDRAR1 F RLAST 1 BLAST , 1 1 ~ T i _i_ «5 i 1 i "1 7 10 'i ii i 15 ' Z" J. L t : 20 - 25 - TO 35 no ii li 15 '1 : 1T \ L1 1 |l i i i i i ii'iiMi!i i i i 1 1i 1i iri 1 r*1 1 L=t*>ii i i * yi i ]/\iiiiii 1^1 1 1 1 1 *v_ j l i . i Ii*_.- 1 -— ^( i1 iL i il ii i inv i i 1 L/T iS-jiii INI 1 INM i i i i iiii iiiiiii 1 1 1 i ii i \s, J-f is\ 1 1 ^-»! i7 1i i i iin i i i1i iii i i i ii i iiiiiiiiiiii_j_ i iiiiii i1 i iiiii i ^ ii i i iiii i ii i i i( i i ii ii i i iii iI 1I i i 1i i ii ii 1 I i L r ! 1 1 1 1 1 1 1 I 1 1 [ 1 1 l >sJ^T |l i i ii ii li ii i 1 1 1 1i i ii i 1 1 1 | 1 1 1 1 1 1 1i 1 1 1 i 1 \ | 1 l 1 1 1 1 1 1 | 1 1 1 i \ \ \ i i l | 1 1 11 i 1 !1 1 i I 1l 1i 1 1 1i l 1 1 l l 1 | 1 1 1 1 l l1 1 1 1111 lil ! 1 ii i I1 l I i iiI ii ii i i i 1i \ i 1i i 1 l1 1 i 1 1 i l 1i 1 1 l1| Ii i 1 1i 'i I 1 ' 'i 1 I ' 'i 1 1 II II i 11 1 j 1 i T~i 1 i! iii 1 III 1 1 Ml l1 l 1 i ! '• '1 i ii1 1 i I 1 i i i 1 iII1i ! i 1 1 | I 1 1 | 1li > i ii i ii ii i 1 ' '1 t i /iii iiiiii 1 1 i 1 l I 1 1 1 11 1 1 1 1 1 1 1 ! i i 1 l 1 1 1i 1 1 1 iiiiiiiiii ii it i !. [' ii i i i l 1! " i ;1 i i 20 DRILLING RATE ( SECONDS/FOOT /X SOUTHERN CALIFORNIA <<=y=/ SOIL & TESTING, JNC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATH: 02-20-97 PLATE NO. 49 . AT-31 PROPOSED CUT: 16'. LM-500DRILLING DATE: 02-18-97 DRILLING METHOD/EQUIPMENT:. LOGGED BY: JRH DRILL BIT DIAMFTER- 4" SURFACE ELEVATION: 442 20 3b DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA ^fy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 50 AT-32 PROPOSED CUT: 23' LM-500 LOGGED BY: >— c.UJ • ~_ ~~ r n EL E V A I ! 4 1 n — — . -\ c '- -r i 20 ! i 1 l I 25 'i T i i i i : i TS ! 1 T i 1 40-L 1 1 1 4SJ I : ; JRH DRILL BIT DIAMETER/- 4" X ** SURFACE ELEVATION:434 PRDRAB1 F BLAST » BLAST 1 111 1 1111i i! i/i 11 /' 1 i sj I I I I iI I I I II I I I I i I i I i I iI I I II IIII I i I I • I i I- !I • I I I I III l\ 1 1 1 1 i 1111 Ii I I I I I IMIIIi \ 1 1 X1 1 i I ! i111 L I I I I I I I i, i i i i i i'\I I "SJSs i|i1 1 II ^1 1 1 1 11 111 1111 I I ""SvJ.II II II I I I I I I IIII ' I ItillI1 1 i i 1 I i i i i II 1 i 1 iII II 1 j j1 1 1 III1 i i 111j i I I I i I I II I I I II I II II I i -iII II III1111 II I i iI I IIII iiI Ii i 1 iM M1 1 1II 111 1 1 1 1 i i iii i > iii iIii |i i "I I'i ii ii •i ii ii ii iii ii i I i i ( ii i ii iiiii ii iiiII li iiiij• riii ii ii I ii I i I I i i_j I I I i I I ri i I i I I I l I i i I | I l II I l | I l | i I I I | I l l i ll l I I i I l I lI I iI li f : lIi ii ii I I I I I I I I I I I I I I I II I I I I I I l I i 1 I I 1 ! ! !i i ii i i i1 I ! !i i ii i1 i i ii 1 i i 1 1 1 1 1 1 1 i I 1 1 1 I 1 ! 'in • iI !i i I i j Ili ii lMII i I ! l il i 1i I i[1 i1i i i I l i I Ii i i ii lii J I I I I I| I I 'i I ! l i i I I i I 20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA \=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMSErT. 971 1027 DATE: 02-20-97 PLATE NO. 51 AT-33 PROPOSED CUT:10' LM-500DRILLING DATE: 02-11-97 DRILLING METHOD/EQUIPMENT. LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: DRILLING RATE ( SECONDS/FOOT y\ SOUTHERN CALJFORNJA <^PX SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUWSEri: 9711027 DATE: 02-20-97 PLATE NO. 52 AT-34 PROPOSED CUT: 17' DRILLING DATE:02-11-97 DRILLING METHOD/EQUIPMENT. LM-500 LOGGED BY: JFlti DRILL BIT DIAMETER: fL_ QSURFACE ELEVATION: 400 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH J03 NUW6HH: 9711027 DATH: 02-20-97 PLATE NO. 53 AT-35 PROPOSED CUT: 15' LM-500 -OGGED BY: >— 5r~\ _ c h -i 10 . 0 5> _iu •• 1 C. 20 25 T=; -. — 40 . 45-i : - 1 JRH DRILL BIT DIAMETER X*« . 4" ^vx SURFACE ELEVATION.410 PROBABLE BLAST t BLAST 1 i 1 - 1 j 1 II 1 1 11 IIII 1 1 1 |i r ' ii i /*~~ Hi i iii i iii i i ii r**1 — i —i— i i i ^i iiii iii •WM ==; i i i i ii i ii i i i1i MIi iiiiiiiiiiiii i | i ^^ \ 1 III11 11 11 1I 111 i i i liiI 1 1ii iii iiili ii i 1 1 1 1 1ii! i1 i i 1 i1 1 1 1 1 1 1 iIII 1 I 1 1i i 1 ! !l i l 1 1 ^ SOUTHERN C SOIL & TES- i r »4 | 1 H+ii i-r"~ -U-Li i "" 1 1i i s?r i p^ii i / k~. _— •*««. * /* t*Sl ~" >s - t | ~~—i— 11 ^= ••— —i— i_i 11 1 i 1 1 iiiii i ••>• •— "• • 1 «.sai 1 » 1 i i i i 1 i Ii l 1i l i i1 1 | I I I 1 1n IFTi i ii i i i 1 1 1 i 1ri i 1 ' !1 1 1 i 1 i i _ii 1 1 i i i 1 I i l i i I l I iI I l I i 1 . 1 1 1 1 i i 1 i ii \i /i ii ii ii i l 1ii ii ii ii ii ii lii ii i i i ~T i 1 l 1 ii i i i 1 11 ' !l i i 1TJ 20 3t> DRILLING RATE ( SECONDS/FOOT ) :AUFORNIA PING, INC. 4TJ CALAVERA HEIGHTS BY: JRH JOS NUW6SH: 9711027 DATE: 02-20-97 PLATE NO. 54 AT-36 PROPOSED CUT: 14' LM-500L L DRILLING UAIt .OGGED BY: ul 'JJ _ ~* -] , 5 _j UJ — 5 — Ti - — . " •"•*• " T5 "* "". ->1- _ " — 30- t i " l35l i I - i- 1 45- - • - ri i T JRH nnil 1 HIT niAMFTFfl- 4" SURFACE F! EVAT1ON: 404 Sy i I 1 1 i I 1 1 1 | j III 1 i i 1 L s siV 1 1 1 K i ' j i - 1 1 --..r-^ i ill 1i 1 1 — 1 1 1 1 :>. 1 1 i I i I i I i i i 1 1 ! 1 1 I i i I I 1 1 ! 1 1 1 M, .''iii ii 1 ! I | 1 1 1 1 1 I i 1 1 1 1 1 11 1 1 1 1 ( i i i 1i i ii i 1 1! 1 I 1 1 1 II 1 11 1 1 1 1 11 11 1 li i 1 I i i i i i ii i iii1 L_ 1 ! 1 i .1 1 T I I i «^ S \ \ • ii —U 1 ! 1 1 1 \ 1 J 1"l H 1 !1 ii i 1 1 1 1 1 I 1 1 .M^ •< ••• 1 1_u11 1 •™» ~^> «•• 1 1f 1 1 1 Vo /X SOUTHERN CAUFORN X=y=</ SOIL & TESTING, INC. 1 i1 -—.•^s 2> ••• PROBABLE BLAS i i1— — """T"5 i— h-1 I i i J— . i 1I— r— ^ -—•C ,m^ l_r— - ••» •M \ 1 1 1 I I | T BLAST — ™=• —A •— => •-••=a i 20 DRILLING RATE ( 1A •H• — "T* 1 I 1 I ii i 1 1 — i — ii SECONDS/FOOT CALAVERA BY: JRH JOB NUMBER: 9711027 3TJ ) I 1 f i~rr~ \ \ I i I i 1 1 1 1 1I ' 1 I 1 1 1 11i i • —i ii i1 !T-i in i i ! !.. .1 . 1 i "-r 1 1 1 1 1 1 i/ii ii s.TJ HEIGHTS DATE: 02-.20-97 PLATE NO.55 AT-37 PROPOSED CUT: 12' LM-500DRILLING DAT£:02-11-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JHH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 408 t- LUa 1 5 1 10 1 5 T I— 20 25 TD I 35 'i I I I 40-L^U-j- TIi 45-1i4. 1TT a <:> ZJ HI i 1 <^$V ^ \ , <<- !>V \ / \ 1 „ *> / ^ s ^/ h~ t X v,X i \r t ^ ^ b X1 » ^l^1 f ^ i 1 ^ fl vX ^^ 2 T » 1 1 1 1 i 1 1 1 1 0 F i . >fi ii Cm £ i A 3L i ii 31 B .A 1 D 1, .s E T i 1 i 31 i .f- \ \ ^ST iii ii ii\i i i i iii i iiii i ii ii i 4t) DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBER: 9711027 DATS: 02-20-97 PLATE NO. 56 AT-38 PROPOSED CUT: 15' LM-500 LOGGED BY: JHH i— 5 ^ O 5 Ij iU 1 I 1 .1 5 1 T ' _10^ I " -1C I 1 1 20 'i 1 1 1 25 1 1 1I 1 !_ -»n_Li i i 1 •*=, 1i i I 1 40-1i ii 4SJ 1 - DRILL BIT DIAMETER- 4' SURFACE ELEVATION: 393 X*«r^ ^ PROBABLE BLAST •BLAST | 1 1" I 1 1 i 1 1 1 1 ! 1 1 IIIi i Mi ii i i 1 '~T7-i k, 1 1 1 s 1 i iii (i iii i ill N ii i i i i 1 M i i i i i 1 I i i I 1 i i i i i 1 1 I ! 1Ii i I ill 1 1 1 I 1 ' 1 i 1 1 1 ! I III 1 I Mi|_L 1 1i i i i1 i i l i Ii illii iii "i i ii1 i 1 1 i I i i | 1 i [ i 1 ill I 1 1 i ii i ! 1 1 _J 1 1 1 1 Ml 1 i I 1 I i ii 1 l ii i i iii ii i Lii 1 1 1 1^a^_ r~i1 T- 1"i ii iii i 1 1 1 1 t 1 1 1 | 1 1 1 i | '»-7 S i i 1 Ii i i i 1 i^Iiii i i I ii i i i ii 1 i iij ii 1 i i1 i ii 1 i i 1 1 1 i 1 1 1 1 1 1 I 1 1 Iii T~ 1 ji I 1 1 1 ! ii i | i 1 iT i i -r iI !1 1 ' 1 iMMI I i !._i i i ii ii i i i1 i • i i / i Ml !i i i i ii I i i i i i 1r i iiii ii ii ii ii ii ii i fi i I li li 1 i ii " i Mi ii i i Ii i i 1I i ! !i Ii i i I i *i i 1 I 1 ' !1 I i i 20 DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X=y=^ SOJL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 57 AT-39 PROPOSED CUT: 18' LM-500 LOGGED BY: t- ilir-i o 5> _jw 1 T -I r 1_5 - — — 1 1 10 'I I 1 " " 15 ~MI~ j~f T 20 — 7S •on w "^ - 40!AU- T 1 1 45i_ A^-J. : 1 T JlRV-1 ni=ULL BIT DIAMETER X L ^ 1 1 j 1 1 1i i - 4" S**-<?-& ^ SURFACE ELEVATION:390 PROBABLE BLAST 1 »BLAST MMi i i i 1 III 1 ••s[MM C^U 1 i 1 *-i1 f 1 ••», Mil 1 i i i 1i i i ii i i i i i ! i i i i iiii i iiiiiii i ^!/li Li i I, 1 1 -'-vt i i1i IIi iii i i i i I ii_i iii I i i i i I i ii i ! 1 1i iii ii i i i ^ 1 1 1 1 1 i 1 1 1 1 1 1 1 1 I 1 1 1 I 1 i 1 1 SOUTHERN CA SOIL & TEST! . i i | 1 •«. i Is 1 i 11 i ^ J—x1 /[ S, <SSr ^ U ~~ i rii iii i i ii i •^ «•!• "— .••«• iI 1 .'•i ...:-.. I =. w— 1 2; 1 l l 1 1 .M M J i i i iiii ii i 1 i ii 1 1 ^ 1 i i i i I 1 i 1 1 1I| I i l 1 i 1 i i ii 1 1 1 1 1 i 1 [ 1 1 l 1 !i 1 ii i iM 1i 1 iT li i i T~r T~I i ii i i i i ii i ii i i i i " ii iii iii i ii i !/1i i i ! II 1 1 I ' i 1i i i i i ! 1 > i 1 1 1 1 1 1 1 1 1 1i !i ii ii i iii i fD 20 3° DRILLING RATE ( SECONDS/FOOT ) iLlFORNIA NG, INC. 4TJ CALAVERA HEIGHTS BY: JRH JOB NUMSEa: 9711027 DATE: 02-20-97 PLATE NO. 58 _ AT-40 PROPOSED CUT:25! DRILLING DATE: 02-10-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DfliLL BIT DIAM£TER__J1_ SURFACE ELEVATION: DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA X=T=*X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH jos NUMSEH: 971 1027 DATE: 02-20-97 PLATE NO. 59 AT-41 PROPOSED CUT: 15' LM-500 LOGGED BY- t- - 0 UJ JRH nRILL BIT DIAMETER •OT •^9 : i 1 0 •I C f : 20 25 tr\ 35 - 40 - 4S- • - 4 T . 4" <?^ SURFACE ELEVATION 434 PROBARi F BLAST •BLAST I \ i I ix< t>S1 1^ _, ^ ' ^r-t-i-, 1 /"i Si 1 *~ 1 ^m=T= -J-4-f— 1 1 =a-••••e ._ 1 i 1 1 I i 1 1 I I i 1 ii 1 1 i I i ___ I I i TD 20 DRILLING RATE ( SHCO«ros/FOOT /\ SOUTHERN CALIFORNIA X=j=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH jos NUMBER: 9711027 DATS: 02-20-97 PLATE NO. 60 <m AT-42 PROPOSED CUT: 24' DRILLING DATE: 02-10-97 DRILLING METHOD/EQUIPMENT^ LM-J500 LOGGED BY: JRH DRILL BIT DIAMETER- 4" 5SURFACE ELEVATION: 434 PROBABLE BLAST 20 DRILLING RATEE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUM8E*: 971 1027 DATE: 02-20-97 PLATE NO. 61 AT-43 PROPOSED CUT: 21' DRILLING DATE:02-18-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JR" DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 422 PROBABLE BLAST 20 DRILLING RATEE ( SECONDS/FOOT ) /X SOUTHERN CALIFORNIA X=T='/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUWBEH: 97.11027 DATE: 02-20-97 PLATE NO. 62 AT-44 PROPOSED CUT: 10' LM-500DRILLING DATE:02-10-97 DRILLING METHOD/EQUIPMENT; LOGGED BY: JRH DRiLL BIT DIAMETER- 4" SURFACE ELEVATION: 422. DRILLWG RATE ( SECONDS/FOOT S\ SOUTHERN CALIFORNIA N=T=*X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMS£S: 9711027 DATE: 02-20-97 PLATE NO. 63! AT-45 PROPOSED CUT: 25' DRILLING DATE:02-18-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT niAMF.TFfl- 4" SURFACE ELEVATION: 42Q PROBABLE BLAST DRILLING E ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA <^=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUM8E3: 9711027 DATE: 02-20-97 PLATE NO. 64 AT-46 PROPOSED CUT:25' LM-500 LOGGED BY i_ ill _ 5 HO I 1 V A 3 1 H JRH _DR1LL BIT DIAMETERi 4" SURFACE ELEVATION Xy T - 10 1 5 r20 25 - TO 35 - 40 Ti 15 'I '. 4. 17 i il i 1 X*>- f F i» : 414 'HOBABLE BLAST BLAST l l i ! /i (1 ]^'i rs 1 !11 1 1 11 l f~ 1 "^ 1 \S\ 1 1 j j i 1 l 1 i 1 i1 Nil11 1 I 1 \ \^ , 1 ' 1 1 IV i 1 i 1 1 1 1 l 1 \L 1 1 '-N- Ii iSi i iiir i i i i i ii i 1ii ii i 1 Ii i i i i i 1 | 1 1i i i ii ini ii ii i 1 1 I - i i i i ii i ii ii ii i ! ili | 1 l 1 1 1 1 1 1 l ! 1 . ! l II 1 1 1 l 1 1 i 1 ii ii i , i 1 L 1i iii ii iI ii i <d± i i ii i i1 l I il »• «• 1_1 ^^~ MM ^ M 3-* mfK ^•w |l 1 I | 1 1 i MM 1 | 1 1 — r— i J- I1 1 1 1 1 ii 1 ! 1 1 1 | 1 l 1 1 1 I1 I l1 1 i 1 1 ii ~— • • _— — — Ii i _ — l i l i1 1 — i — =r f~i ii 1 1 1 I I I r iii iii r ~rfi i III 1 1 1 1 1 1 i — ._ MM 1 l I ii ami •M — I I i i I i I I I I T^ MM — — ! 1 1 I 1 I Ifl ii ii | I ii I I II — i - I i i M I I I I I i I I I I _LI I 1 !i 1 ! i l1 i i I iiii i !i i I I l I I I i I I I I i _ ji i- •TO 20 DR1LUNG RATE ( SECONDS/FOOT ) /\. SOUTHERN CALIFORNIA \^ry SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 65 AT-47 PROPOSED CUT: 24' LM-500 LOGGED BY: >— Hif~\ 3 | zi LU JRH n?^ILL BIT DIAMET! X*« =R- 4" / SURFACE ELEVATION:410 PROBABLE BLAST i>BLAST , _*. . ^ - 10 - — 1 =, ; ; 20 - 25 • •jn 35 AD- AH— - , " i 1 i r i 1 i Ii *i i_ j ^ I "«-w •'- - ' 1 1 1 1 1 — 1 ^•™^ ^M =P F=Ct i I I 1 1 >«, ••••*s; ^**v.> •* s ^ ^^^r— (•— !*T" i i *^M . ••^^ I «M ^ 1 I I i ~T" — I I i i i i I =?=?»-=r i i I tt) 20 3t)4* DRILLWG RATE ( SECONDS/fOOT ) /\ SOUTHERN CALIFORNIA <^K> SOIL & TESTINGJNC. CALAVERA HEIGHTS at: JRH JOB NUMSES: 9711027 DATE: 02-20-97 PLATE NO. 66 AT-48 PROPOSED CUT: 25' DRILLING DATE:02-18-97 DRILLING METHOD/EQUIPMENT;LM-500 LOGGED BY 1— - 5 - - 1 5 L [ ' P— 20 25 o EL E V A T I JRH J3RILL BIT DIAMETER^ °>" OTO > , 30 35 40 ; T 15 'J I I 4 TT I I ^ ^HOFAHF Fl EVAT1ON: 400 F'FJOBABLE BLAST BLAST i xir1 Is\ I I i i I I I 1 1 i i | 1 I I i i ! ! s I I ^_s:•^ 1 — •— -,•—, 1 1 1 1 1 — «:•— — ,•H— « I *X i \'V, ii i ii i i ti j i i i \i --. \s I i 1 I 11 i i -> ^ 1 1i 1 1 l l i i i i 20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=y=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JO3 NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 67 AT-49 PROPOSED CUT: 25' DRILLING DAT£:02-10-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY: i- UJ - O 5 - £- " 10- - 1 5 . 20 - 25- . •an 35 - 40— I -453 -i ; J JRH rnRILL BIT DIAMETER •£s ^^* O^ 4" ^ SURFACE ELEVATION:394 PROBAB1.F. BLAST » BLAST • I I ^"V, I x^' •>-^J^^.I I T ^ ^*f««. I I [ i I I I II I I I I **• — M-i =T= •*T*. t*-«L_ v > X ^s IX I I I N X i I • I ii i I i I I f I I I I ! / I I I I.. .. . . I i 20 4T) DRILLWG RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=2r=jX SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 68 AT-50 PROPOSED CUT: 20' DRILLING DATE: 02-1 0-97 DRILLING METHOD/EQUIPMENT^ LM-500 LOGGED BY: JRH DRILL BIT DIAMETER: i!.' cSURFACE ELEVATION: 368 20 3*0 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA ^r^ SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMBSa: 9711027 DATE: 02-20-97 PLATE NO. 69 AT-51 PROPOSED CUT: 5' LM-500Lmn-U>r«o t-<« LOGGED BY: fr- iii 5w< iii_jiii JRH DRILL BIT DIAMETt ^S^\s *^^^** :H- 4" X SURFACE ELEVATION:390 PROBABLE BLAST 1 BLAST 1 r T 10 -t C T 70 25 I— JU— I T=;- •• — /in 45— — i T ii 1 I 1 i i 1 •MM-^•H t i •MB 1 , — i•— . 1 L_J I 1 «c=•»« •-^ / 1 ^ — ' •Ml .__^5 » — 1 1 I i i ) i i i i ft)20 DRILLING ft ATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA <^=y=</ SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOS NUwasa: 9711027 DATE: 02-20-97 PLATE NO. 70 AT-52 PROPOSED CUT:22' LM-500ut-ui_Lirto ut-* LOGGED BY: ilj o LU - ~ - 1 n 15 - on - 25 - — oU — ^j---* Ar\ i T JRH DRILL BIT DIAMETER •^^^T^» X* • 4" ^ SURFACE ELEVATION:368 PROBABLE BLAST * BLAST I I ' i ^ I I I -H:.—- I I I I I I i I I I ^~ . i I | I I i ~^ h- *T^~^ •«=3 =»I — !*T^~ \jJr-T'^n •^--r — "*•ii •-*» L^•••« •-«*• ^ ^" ™— 2 •—•w •~mt ' — « I I I i =••^ i I I I i I i II i I i f ii I I i i T ii i i i ii i•i ii i —4— L^— 20 DRILLING RATE ( SECONDS/fOOT ) S\ SOUTHERN CALIFORNIA *<!~T=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 71 AT-53 PROPOSED CUT: 14' DRILLING DATE: 02-19-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: __JRH__DRILL BIT DIAMETER- 4' SURFACE ELEVATION: 360. PROBABLE BLAST DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA \==T=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOBNUMBEH: 9711027 DATE: 02-20-97 PLATE NO. 72 AT-54 PROPOSED CUT: 12' DRILLING DATE: 02-1 0-97 DRILLING METHOD/EQUIPMENT;. LM-500 LOGGED BY: JRH DRILL BIT DIAMETER: £_" ^SURFACE ELEVATION: 358 20 Ifo DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA ^fy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 73 AT-55 PROPOSED CUT: 2' LM-500DRILLING DATE-.02-10-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 362 H UJa 5 ^ m 15 -j-ID - I 1 [—20 'i I 1 1 25J1 I I I - ID - I 1 1 35 iI 1 I 1 40-1\ 1 1 1 151•*! . . -I 1 o 5 ZJ VII " <?s tVT£1 < 5^ c> *-1S \r" k x <^^s , >r* K. 1 | L> * s2 r<* i -^ ! vt>\T> 2 * 0 • PR I nB E A 5L •-i B A b 1 ST I E31 1 A,ST r iii i ii i ii fi ii ii if ! T1 t !i i (.Mi I L 1 1 1r ii i ii ii ii i> ii 1i 1i ii i ' !i l ! 1 i 1 1 1 1 1i !i ii ii iiii ii ii ii ii iiii ii i ii i i-' ' ii i i 41 DRILLING RATE ( SECONDS/FOOT <$SOUTHERN CALIFORNIA y SOIL & TESTING, INC. CALAVERA HEIGHTS st: JRH JOB NUMSHP: 9711027 DATE: 02-20-97 PLATE NO. 74 AT-56 PROPOSED CUT: 22' IB, •am DRILLING DATE: 02-1 0-97 DRILLING METHOD/EQUIPMENT i nnnpn «v- JRH noil i arr DIAMPTFO- 4" LM-500 LOGGED BY: .. DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 370 PROBABLE BLAST 20 31) DRILLING RATE ( SECONDS/FOOT S\ SOUTHERN CALIFORNIA \=J=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JDS NUMBER; 9711027 DATE: 02-20-97 PLATE NO. 75 AT-57 PROPOSED CUT: 13' LM-500 LOGGED BY: P 3*~i _ _ 1 :r n UL I i V A T I TT 1 1 n ~~ ; : 9n 7S ~ —» "3^ - A rv ii 4Sj i_ •- JRH DRILL BIT DIAMETER Xy i 1 1 1i1 1 1 1 i i iii i ii liiii i iiiI 1ii l i 1 1i 1 1 _1 'l 1 ¥— i 1 1 1 I I 1 I =r= ! — —_, j— l^1 II II 1 II 1 1 i I 1 1 l 1 1 1 1 1 L_J— • ••»•_ U-* *•*. — —i i i \^< i 1 l 1 Si*~-H 1 l i — i Mi ii 1 1 l i i i 1 1i i i i i i l i1 i ii 1 . 1i i 1 1 1 1 •— . L—r= 1 l l Mil 1 1 1 1 1 1 M 1 1 1 i l ! 1 l Ii i MM 1 1 l 1 l l 1 1 l| 1 1 I 1i i 1 1 1 1 1 1 1 1 1 1 M II II M 1 l 1 l 1 1 l l l 11 1 l 1 | 1 1 1l 1 l i i ii | ii l i t i i i ii ii i 1 i i 1 1 1 1i i i i i i i | 1 i i l 1 • 4" X ^ » i i iii *• ..-i !i S 1IS i 1 11 1 — 1_T — ••*™ =«-•— — L_ 1 1i i 1 =». i i 1 1 1 — 1 1 1 | 1 1 1 1 1 1 1 1 | 1 1 1 1 •W SURFACE ELEVATION:376 PROBABLE BLAST » 1 1 1 1 I 1 i ii —_ _,=f= i •• i ii1 Iii 1 ii i1 i Ii1 ii 1 BLAST — .K= • 1 1 1 1 1 1 1 1 1 i 1 r iii 1 ~~l 'I 1 1 1 i 1 i I1 il ~f T_l 1 I~~ i r~i ii i !iii f t L.i i i , ! Li i ii (i i | '' ii ii ii il i ii i M 1 I 1 !i i ii ii ii__j p_ 1 li i r~i ii !ii i 1 11 1 | i *i i 1 l 1 ! ._"1 l i 20 DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X=r=^ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 76 AT-58 PROPOSED CUT: 24' LM-500DRILLING DATE: 02-10-97 DRILLING METHOD/EQUIPMENT^ LOGGED BY: JRH DRILL BIT DIAMETEH_11_ SURFACE ELEVATION: _372_ PROBABLE BLAST DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA N^-P^ SOIL & TESTING, INC. CALAVERA HEIGHTS 9Y: JRH JOSNUMSHH: 9711027 DATS: 02-20-97 PLATE NO. 77 AT-59 PROPOSED CUT: 16' LM-500DRILLING DATE;02-10-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: __JRH___DRILL BIT DIAM£T£Ri__il__ SURFACE ELEVATION: _365_ PROBABLE BLAST DRILLING flATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUWSEfi: 9711027 DATE: 02-20-97 PLATE NO. 78 AT-60 PROPOSED CUT: T DRILLING DATS; 02-10-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY: ill - 5 ~ 1 10- EL E V A T I O N — 15 T 20- 25 - -30 — - 35 40- 45—i - }1 1 JRH DRILL BIT DIAMETER X , - 4" X SURFACE ELEVATION: P » 372 ROBABLE BLAST BLAST — - i [~ ^ 1 i f^ •>•*s 1 i *••». i i 1 i i I _I i I 1 I i 1 — .U—«. | *«- f s•^ 1 1 i1 i ii i I i i i 1 i I i i i i\ 1 i \ r i ii II i" 1 1 1 i i 1 ii i 1 J i ! i 1 1i i i 20 DRILLING RATE ( SECONDS/FOOT ) 4TJ /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, (NC. CALAVERA HEIGHTS BY: JRH JOB NUWBSH: 9711027 DATE: 02-20-97 PLATE NO. 79 AT-61 PROPOSED CUT: 19' LM-500DRILLING DATE: 02-10-97 DRILLING METHOD/EQUIPMENT: _ LOGGED BY: JRH pfflLL BIT DIAM£T£Ri_£l__ SURFACE ELEVATION: 365_ 20 ;&> DRILLING RATE ( SECONDS/fOOT /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMBER"- 9711027 DATE: 02-20-97 PLATE NO. 80 AT-62 PROPOSED CUT: 17' LM-500 LOGGED 8Y: H LJ - 5 UJ 5 1 10 - -t c T 20 25 - — 30 — 35 - 40_ i*~Ti t- ] 7 JRH nRILL BIT DIAMETER <?^ - 4" / SURFACE ELEVATION.364 PROBABLE BLAST i •BLAST ^^ ^\J I "M* i I I i I I i j >^m X -fs 1 J i i 1 ^. ••••-+~^>- "ir-t- ^•H •^. ^— I I • _i ii 1 i I [ I i i I I I I i — iH i ! / i 1 I 1 1 i i TO 20 DRILLING RATE ( ssco*os;FOOT ) /\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUweea: 9711027 DATE: 02-20-97 PLATE NO. 81 AT-63 PROPOSED CUT: 11' LM-500 LOGGED BY: Pn LUa _ 2 0 5 _i LJ JRH D?31LL BIT DIAMETI S•f ER- 4"#*S SURFACE ELEVATION:346 PROBABLE BLAST i•BLAST Ti 1 0 " 15 " i 20 25 J Tn_ " 35* _LI 40— 45- - - • I r — 1 ( ( \ 1 1 i 1 I"1 1 *s -h^ 1 1 J— f 1 1 1 1 1 1 i -^i•x ^ i — •-*^« _._ * |M i l i i II 1 1 1 ! i ill l ! 1 1 | i 11 1 U 1 1 l _J 1 1 1 1 1 1| 1 [ 1 i t ii i ii | 1 1 — 1 1 1 1 i_ i | 1 1 I 1 1 1 ii1 i i i1 1 1 li 1 i1 1 i — ^-] kj ~~a»•»••— 1 J 1 i i iii i 1 ilI 11i 1 i »•i — l 1 1 | 1 11i i1 ii i i i |1 1 1 ! 1 1 1 _il i i 11 1 1 1 i i i i if 1 I I 1 1 M l 1 !Ii | i I i i i 1 1 1 iri i 1 1 l 1 1 1 1 I 1 11 !l i il ~~\ i 11 1 1i i 1 t i i ft)20 DRILLING RATE ( SECONDS/TOOT ) AID /\ SOUTHERN CALIFORNIA X^T^ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBES: 9711027 DATS: 02-20-97 PLATE NO. 82 AT-64 PROPOSED CUT: 7' DRILLING DATE:02-19-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY t- LJ 1 5 1 0 EL E V A T I JRH nRILL BIT DIAMETEF X T ~ 7 10- 1 5 : T 25 . — 30-- I 1 35 i i T 40-Liiii 15 'I 4T T T F l i l , L- 4" X SURFACE ELEVATION 349 PRDRARi F BLAST i »BLAST i 1 VI1 taw =r—•— J_ ,1^ IZ[i L _[_ 1 i i I I 1 1 1 >s,1— H 1 1 11 1111 1 i 1 IM, -— 1 f=±B. 1 "s — ^ 1 1 -^™ ^^ | •K= i _j | I I I ' i »*—.— 1 1 1 •" «^M •Ml1 — 1 T T 1 1 1 1 i I i 1 1 i1 T T 1 1 l 1 i l f I i 1 1 1 1 i ttj 20 3tj DRILLING RATE SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. f\D CALAVERA HEIGHTS BY: JRH JOS NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 83 AT-65 PROPOSED CUT:17' LM-500 LOGGED -BY: P a/ o _ J. 1 1 1 o 1 1 c t I 20 _[ 25 I 1 T *3 rv " I 35 i I ! 1 40-L T 1 1 I : 1 JRH ni=I1LL BIT DIAMETER •^STfx •^T • 4" x^ ^V" SURf ACE ELEVATION:346 PROBABLE BLAST •BLAST 1 1 Nj J ^* \I ~Ti-s-, Jr*^~~ NL i ^\ \ t ' i "r^ ! 1 I i 1 1 I 1 1 ^1 1 1 —•M =i i •• i . =r—•MI^HB'— ii .- i 1 !i 1 1 i Ii i i t l i ' 1 ~T i l 1 i -ft)20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA <^K> SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOBNUM8EH: 9711027 DATE: 02-20-97 PLATE NO. 84 AT-66 PROPOSED CUT: 10' DRILLING DATE: 02-1 0-97 DRILLING METHOD/EQUIPMENT: i *-» *-^ r-* .->*-. —_. . I D 1—1 ^^ T^ lit r-t -f-f ^-i I A -i • •*— —T'T" T~» A ** I" LM-500 LOGGED BY: JRH DRILL B1T DIAMETER:SURFACE ELEVATION: 350'. 20 3*0 DRILLING RATE ( SECONDS/FOOT S\ SOUTHERN CALIFORNIA ^=y=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBS*: 9711027 DATE: 02-20-97 PLATE NO. 85 AT-67 PROPOSED CUT: 6' DRILLING DATE:02-19-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 344: PROBABLE BLAST TD DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA <<=j=J/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JHH jOSNUWBEfi: 9711027 DATE: 02-20-97 PLATE NO. 86 AT-68 PROPOSED CUT: 3' m •urn DRILLING DATE LOGGED BY: H- 111 13 5 ~ 1" " in" " o EL E V A T ! ' ii 15 !is j r iiT 20 T • 25- 30— 35- - 4O- ^5 _ -- : 02-10-9 JRH 7 DRILLING METHOD/EQUIPMENT DRILL BIT DIAMETER^_5LL X*«/ LM-500 SURFACE ELEVATION:336 PROBABLE BLAST »BLAST , i 1- . r | 1 | 1 1 I I ~T i i 1 1 l 1 1 1 1 l l I1 I I I I I I i | i 1 i 1 1 1 Ml I 1 1 1 1 i I III I I 1 I 1 l 1 1 i M I 1 1 1 I 1 MM 1 i 1 l li I 1 I I I I I 1 I ! i MM 1 1 M Mil MM 1 1 1 1 11 1 ! 1l l 1| 1 |I I I I I I I 11 1 1 Mill1 1 1 l l 1 1 1 1!i I I I I I i i 1 1 i I 1 I II I i 1 —• = 1 1 1 1 1 1 | 1 1 1 1 1 f • ••^^m! 1 1 1 1 1 | •M pM« 1 SS=S MB MM •up* e: ^•H MK —t — —_». —•— • "" == —;-.- | I 1 1 i I I Il l I | I | I I I I I | • -1 • !•=• — — . •• !•- =^ • if- • • — •— ^^•i MH ii —^ _. ~: i i =a ^•i =» ^^1 •fc. — *,. •=•. 1 11 I 1 . k — ii 1 1 1 1 1 i ir^~ 1 1iiii 1 1 1 1 \ 1 I 1 1 1 '. L_.| 1 iiiiii ii iiiiiiiiini ii _i iiii iiili ii i •& ?'D sb A3! DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA \=J=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 87 AT-69 PROPOSED CUT: 5' M DRILLING DATE: 02-1 0-97 DRILLING METHOD /EQUIPMENT:. LM-500 LOGGED BY: JRH DRILL BIT DIAMETER: 4"SURFACE Fl EVAT1ON: 346 L—uj 5 < _j HI X<?/1 PROBABLE BLAST BLAST, — — — . ; /\ SOUTHERN CALIFORNIA X=j=j> SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOS NUMBES: 9711027 DATE: 02-20-97 PLATE NO. 88 AT-70 PROPOSED CUT: 5' LM'500 LOGGED BY: t- iiia - c. 0 Ijill T 10 - 1 5 1 •>n ' - 25- 1 , -3n i 1 35 'i I I 1 40-i T7 J_ 45-i !. _i i JRH nRILL BIT DIAMETEFJ ^^^f^ <?^" - 4" / SURFACE ELEVATION:346 PROBAB1.F BLAST r BLAST , N. ^ .**• •**• 1 I i I i 1 1 I i i 1 1 II 1 1 i^. x* 1 - 1 i i ••^ +*^ -4— X"•* s f ^ S ^ . ^11 •> ** "* U* M ^ r— ^ •, -» i i < i i 1 iI i i i . ! i i ;il ! i 1 i 20 DRILLING RATE ( SECONDS/fOOT ) /\ SOUTHERN CALIFORNIA ^^ry SOIL & TESTING, INC, CALAVERA HEIGHTS SY: JRH JOB NUMBEft: 9711027 DATS: 02-20-97 PLATE NO. 89 AT-71 PROPOSED CUT: 6' LM-500 LOGGED BY: i- UJ - - C. 1 1 10 - -1 C 0 UJ_JUJ JRh1 J3R1LL BIT DIAMETER ^^^^^ r*\P* T 20 ' ^ 25 - i<\ 35 40- 15 'i 4 7T , . 4" ^ ^ SURFACE ELEVATION 346 PROBARl F. BLAST BLAST .... ., ! i}/ ! PS*., X,N^l INi r-fc=f^ -*. I I I I I I I I I I i ) •— •^ | IrtH— I I I ! I ••• I I I | , 1 1 1 1 1 1 1 i ^ 1 • ii i i i i i 1 i iii i ~f ' 1 1 1-. L n YD 20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=y=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 90 AT-72 PROPOSED CUT: 15' DRILLING DATE: 02-1 0-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAMETERi 4" SURFACE ELEVATION: _1Z^_ DR1LLWG RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA X=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOBNUWSE3: 9711027 DATE: 02-20-97 PLATE NO. 91 AT-73 PROPOSED CUT:29l LM-500 LOGGED BY: w_ LJ ^ 5 ti L C V A T I 1 _L 1 n — 1 ^ - -T 20 25 -30 —*" "*^ — 40— I I " 45JI I : : JRH nRILL BIT DIAMETER X# - 4" X*r SURFACE ELEVATION 376 PROBABLE BLAST l * BLAST I 1 1 - ... , 1 1 1 j 11 1i i1 1 1 1 11 i ii 1 1 1 1 [ 1 11 1 1 i 1i ii iLj- IX-.i i .*-• ••»•• i i i—" i i T" i i Ml 1 I 1 1 1 1 1i i r~5 1 IIIi l l 11 1 1 i 1 1 1 1 i1 1 ii 1 I 1i I i 1 1 1 1 i ii1i l MM' l l I) 1 Ml 1 Mll III III 11 11 I 1 1 1 1 1 1 1 | 1 1 1 1 1 1 1 ! ' '{ill 1 1 1 M M M M i I 1 L 1 J_i ii 1 ^« <> ii4 ^4. ,•• • ***~, i ^1 ^ ^— • WH 1 P= P— *—I L-.•••» - '1 ~r= i — =js- —^ h~i li ii i 1 i i *• b= 3W M »— . IM ^ w 1 1 =r- 1 1 1 1 l | l 1 i •— «, <^ •HM. \<* i 1 1 1 1 1 I I I 1 1 'i 1 1 i 1| i I i 1 1 i i i 1 i 1 1 1 1 1 i 1 MM 1 i 1 • 1 T 1 1 I I ii i 1 1 ( I 1 1i i i i i l 1i ii 1l i 1 ! l 1 1 1 1 1i 1 l i 1 1 l i1 l 1 1 li i 1 1 1i l 1 1 ~T i i1 i 1 -TO 20 DRILLING Ft ATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA ^=T=/ SOIL & TESTING, INC. ^_ __— CALAVERA HEIGHTS BY: JRH JOS NUMSE3: 9711027 DATE: 02-20-97 PLATE NO. 92 AT-74 PROPOSED CUT: 22' DRILLING DATE: 02-11-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH pfflLL BIT niAMfTF.H- 4' SURFACE ELEVATION: _37J_ 20 IST DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X==T=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATS: 02-20-97 PLATE NO. 93 AT-75 PROPOSED CUT:23' LM-500 LOGGED BY: 3 0 EL Q V A T l T 1 1 ' m~ 1 5 - " -70 f . 25 : i -3 n 35 4O- 7 Ti " 45!I T JRH nRILL BIT DIAMETER ^s ^s G '•O^ I • 4" X SURFACE ELEVATION.382 PROBABLE BLAST i •BLAST ^T^fcJ >-^^f^ *""*S»L^ I II I I I I I I ( I s ! ^ ^ •••• ^* ^ I I I 1 i •ta. -** »«H ^— —,-t- *^ S^:» • i i S •^K_•>*.— • • —^,= i I M^•^^ Ks, 1 1 1 i i 1 1 1 1 i "*T««4 <^*-* 1 i 1 1 f 1 20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA <^W SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER 9711027 DATH: 02-20-97 PLATE NO. 94 AT-76 PROPOSED CUT: 20' DRILLING DATE: 02-19-97 DRILLING METHOD/EQUIPMENT; LOGGED BY: JRH DRILL BIT DIAMETER- 4* £ LM-500 DRILL BIT DIAMF.TER- 4* SURFACE ELEVATION: 372 20 ~3"tT DRILLING RATE ( SECONDS/FOOT ) 4TJ S\ SOUTHERN CALIFORNIA <^&X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 95 _ AT-77 PROPOSED CUT: 10' LM-500 LOGGED BY- 1 o UJ UJ T : i c - - 1 0 . 1 c. 1 - 25 -5n_ - -35 4O- | _[_ i : 1T JRH .DRILL BIT DIAMETER \^^» ^.^fy^ . 4" \^ SURFACE ELEVATION:378 PROBABLE BLAST BLAST i ^ 1 . , , ( f \f ^^r^^j i Lx%, i -xi > •v; *-• *#r?«*~ so ii i 1 ~T~ ^. p^ 1 1 1 ! I • , i i iI i 1 i ~~T i I I i i i i / I i I I I i i i tb 20 3TJ 4* DRILLING RATE ( SECONDS/FOOT ) <$•SOUTHERN CALIFORNIA SOIL & TESTING, INC. 0 CALAVERA HEIGHTS BY: JRH JOS NUMBER: 9711027 DATH: 02-20-97 PLATE NO. 96; AT-78 PROPOSED CUT: 7' DRILLING DAT£:02-19-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JKH DRILL BIT DIAMETER- 4"SURFACE ELEVATION: 380 H 1U 1 .. 5 1 1 10 J. I 15 ' 7 20 T i 1 1 25 1 3O i 35 'i I J.1 40-L^u_ T 1i 15 'i 4. 1T T O 5> UJ_i U <<£ 1 J^^V , < >V i> ^- 1 1 •-i. ^~ -- -~, 1 f ^ ^ X \ t \ /s s^ r[ b ^^ rr i -$ ! \^ ^ ^ ^ 2 i » 1 1 1 0 F>F1 I CIB E A JL ^i B .A D L3 S E T I i 31.? i VST • ii \ iii\r \ i T ii i ii 4T3 DRILLING RATE ( SECONDS/fOOT ) S\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 97 AT-79 PROPOSED CUTiy- DRILLING DATEL02-19-97 DRILLING METHOD/EQUIPMENT:. LM-500 LOGGED BY: JRH DRI K a : j 5 1 " m~T 15 ' . '. '.'. •30 z0 EL E V A T I LL BIT DIAMETEF X i- 4" X SURFACE ELEVATION- 385 PRORAR1 F BLAST ^ » BLAST 35 . 40 - 45--3 i 4 T T i i i i i i11 \/\ H"7~-j H<^H•^ ^<~i ^T- i =3 iii ii i i i i i i i i 1 I 1 1 •>~***" ^ MM^sTi i i 1 _j i I1ii i Iii i i I i 1 i 1 r i ii i iiiiii i i YD 20 DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUWBEH: 9711027 DATE: 02-20-97 PLATE NO. 98 AT-80 PROPOSED CUT: 10' LM-500DRILLING DATE:02-19-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DRILL BIT DIAMETER- 4' SURFACE ELEVATION: 374_ 20 3*0 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA *$=jy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH jOBNUWBSa: 9711027 DATE: . 02-20-97 PLATE NO. 99 AT-81 PROPOSED CUT:..0« DRILLING DATE:02-19-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: H U ^ 1 5 ~I in 1 iii 15 ! I I 1 »-*«1 25 1 TO 35 ...40 . 45--i 4. 1TT 5 w.<> UJ_l UJ 1 1 <<$ 1,v ^ T , i ^ >v i i> i fb ^^ r ^ i -4? i ] ,t ^^ ^ | x"" *!*, x ~~ ^x 2 T ** X* 0 f .. — F —-— »F! ^x 1 1 C N i IB £ A JL 1 I1j B .^ D 13 .S F T I i I i 1 31 i .f. i ^ST i 11 ii 1 (i i ii i i i ii \f 1i1i ! i i 1ii i ^DDRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA ^Y7 SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 100 AT-82 PROPOSED CUT: 2' DRILLING DATE: 02-19-97 DRILLING METHOD /EQUIPMENT: LM'500 LOGGED BY: JRH DRILL BIT DIAM£TERi__il_ SURFACE ELEVATION: 380 >— UJ - 3 10 _l -t c. L _ :. 1 20 25 I •l r\ — ™" 35 'i I I 1 10.1^TT I i 15 1i 4 . 1T T 5 5>iu_i LJ <s?^3r •< >V 'o s /< \ l> kys t • "s D ^^ r ^ i 3^ vtl\T•> 2 • 1 0 I P'R 0B E A JL .j B A D LI ST £3L./i.ST i i ii i ii i 1 ii ii 4tflh. V DRILLING RATE ( SECONDS/FOOT ) /X SOUTHERN CALIFORNIA <^§Q> SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBED: 9711027 DATE: 02-20-97 PLATE NO. 101 VILLAGE L2 AT-83 PROPOSED CUT:9' LM-500 LOGGED BY: K- L-Ja 3 CL U V A T I T J. : j 10 — — 15 ' T - 20 i 25 ' T ri 35 'i ii T 40J_i T 4 ii T JRH <?$<* nRILL BIT DIAMETEH ^s ^^^ - 4" X SURFACE ELEVATION:444 PROBABLE BLAST >BLAST , > •- i I HH«= I r* _!_•« •^ ^M S _ i i 1 I j i \ sa am Hm •^ •T? TT ^ WMB • ^H 1 ^mm •^H — «•*mmm -™••MlMI i I 91i^M •^<:y •CE ii M«Ml•••••.•HW •^^ 1 i ^M I i 1 I 1 i 1 I I i 1 i i i 1 1 i . 1 I I i 1 i 1 i I 1 T i - 20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA ^=2J=>> SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBS??: 9711027 DATE: 02-20-97 PLATE NO. 102 AT-84 PROPOSED CUT: 10' LM-500 LOGGED BY: UE P T t - zo EL E V A T I 10 — 1 C T 20 T 25 -30 — - •35 40 ' 45-i. -j T T JRH .DRILL BIT DIAMETER [X • 4" X SURFACE ELEVATION:448 PROBABLE BLAST »BLAST 1 1 i 1 1 1 | 1 1 1 1 I i i i i i 1 1 1 1 1 I 1 1 1 i i 1 1 V •M MM i [ •B•M™.••M,•^^•^^H ^M 1 i — •M I = <r ^ *** «••••^^ •«. *^ ^M — ^« = - • !*•< n ^M •~i ••• ••^ 1 1 •^ •M« MMB ^^M H^ •wi ^C •«• >•«« M^ v^ > *^^ 1 1 — M- t rrt-^ i i i ii i i i ii i i i ti ft)20 DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA <^=&X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMBED: 9711027 DATE: 02-20-97 PLATE NO. 103 AT-85 PROPOSED CUT: 10' *• DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT;LM-500 LOGGED BY: JRH i— UJa - 5 _ 1 -" 10-_ 1 5 O EL E V A T .DRILL BIT DIAMETER^ 4" X t • T 20 25 -in " 35 T Ti T 40J- T 7 " 45! 4 T T I 1 is ^&x SURFACE ELEVATION 448 PRORAR1 F BLAST i •BLAST ?-^. if I •••. ^ ^a ^Hmum 1 ^•a i iiii i 1 T~ i I i 1 1 1 1 1 1 i _L 1 T-1- 1 1 f i •— « I •••-IB i -™« 1 = i ^-^i ^j— -rf ifi i\ 1 i i ii\ i i i 1i 1 1 i i i i ii 20 DRILLING RATE ( SECONDS/FOOT >/\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOSMUWBHH: 9711027 DATE: 02-20-97 PLATE NO. 104 AT-86 PROPOSED CUT: 23' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DRILL BIT DIAMETER: 4" c LM-500 DRILL BIT niAMFTER- V SURFACE ELEVATION: _J5J- PROBABLE BLAST •ro DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA ^=7=y SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBER 9711027 DATE: 02-20-97 PLATE NO. 105 AT-87 PROPOSED CUT: 34' LM-500 LOGGED BY: UJ a CL G V A T I - _L 3 1 n i -1 C 20 i 1 25 in-!. i 35 'i ii T 40-L1 7i 4S-1i 4 i1i JRH ruRILL BIT DIAMETER £sT^^ r»Tp^ . 4" /" SURFACE ELEVATION:442 PROBABLE BLAST 'BLAST X/ —«; I t I I I I •^. — . =1 ••— •BS I I I I I I | i te« *tm "•P =P ^ — •••w ^^ 1 bi =• •i P^•«••!•••^B •M >*l ..^m • i—.^^M-H ^.•^^•^ 1 1 &»"«; 1 i r— Lj S. '-vj i i •** i i i i i l i i ii ii ii ii ii i YD DRILLING RATE ( SECONDS/TOOT /\ SOUTHERN CALIFORNIA X=2r=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOBNUM6EH: 9711027 DATE: 02-20-97 PLATE NO. 106 AT-88 PROPOSED CUT: 30r DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT LOGGED BY: JRH DRILL BIT DIAMETERi 4" LM-500 SURFACE ELEVATION:434 PROBABLE BLAST DRILLING RATE /\ SOUTHERN CALIFORNIA X=T=V SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUM6E3: 9711027 DATE: 02-20-97 PLATE NO. 107 AT-89 PROPOSED CUT: 17' DRILLING DATE: 02-12-97 DfllLLiNG METHOD/EQUIPMENT:LM-500 LOGGED BY »- a 1 1 5 1 1' ] - . . 20-. 25 O LL t V A T I JRH DRILL BIT DIAMETEfl ^^^^X ^ 3D . - . 35 I TT 40-i- 1T 1 i 45 ' '. I TT L- 4" / SURFACE ELEVATION 452 PRORAR1 F 81 AST BLAST [ 1 ii 1 c= i i 1 s ^^ i Iiii i I i i I 1 i i 1 I 1 i i •f ^•«•• ^ > -«. i >«.r^. i t I 1 1 h»=—v »•. 1 1 i i i i i i i r > i 1 i i I i Ti i i i I i iii I ! i i" i n ^n 3b 4T DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA \^r=y SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 108 AT-90 PROPOSED CUT: 22' LM-500DRIL LING' DATE: 02-12-97 DRILLING METHOD/EQUIPMENT^ LOGGED BY: JRH DRILL BIT DIAMETER- 4' SURFACE ELEVATION: 440 20 I'D DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=y=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUW8EH: 9711027 DATE: 02-20-97 PLATE NO. 109 AT-91 PROPOSED CUT: 15' CHILLING DATE: 02-12-97 DRILLING METHOD /EQUIPMENT; LM-500 LOGGED BY: JRti DRILL BIT DIAMFTER: 4* SURFACE ELEVATION: 432 w~ UJa zo | UJ_i LU X«''XIs^1 PRORAR1 F Rl A5^T »BLAST DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA <^p^ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUW6HH: 971 1027 DATE: 02-20-97 PLATE NO. 110 AT-9 2 PROPOSED CUT: 2' LM-500 LOGGED BY: 1LI - O CL E V A T I I T r; 1 o — 1 c T 20 25 — oU— 15 — 40- - - 1 - JRH r\\RILL BIT DIAMET1 O 'O^ -R. 4" X" SURFACE ELEVATION:322 PROBABLE BLAST i•BLAST I «<»••. 1 1 •a*«™ y 4=^** 1 ,—• s» 1 t ii 1 1 1 11 i1 ' 1 I1 i 1 I 1 11 l i t 1 1 •«• 3" »« ^. 1K-. — 1 =B 1 1 1 ••••s ^n 1 1 1 1 1 t1 1 i / 1 i i 1/ 1 1 1 111 1 ~~1 t i1 1 20 3i DRILLING RATE ( SECONDS/FOOT ) S\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, JNC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 111 AT-93 PROPOSED CUT: 15' DRILLING DATE: 02-18-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAMFTER- 4* SURFACE ELEVATION: 325: PROBABLE BLAST BLAST I I _ 5 — 10. -15 T — 30— _35 I I I I I I I I i I I ! I I..II I I I I JJ-II T 20 3TJ DRILLING RATE ( SECONDS/FOOT ) i i i I S\ SOUTHERN CALIFORNIA ^ry SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBEH: 9711027 DATE: 02-20-97 PLATE NO. 112 AT-94 PROPOSED CUT: 20' LM-500 LOGGED BY UJa g IJ LJ JRH DRiLL BIT DIAMETER: 4" ^^T^/xv X* SURFACE ELEVATION 332 PROBAR1 F HI AST BLAST ; T 2 10- i ci " 20 ~ 25 1 on i 35 i I 1 40 ! T j_ 45 '• 1 I I T i i i i f V | 1 i. INw I/ i 1 1r^^sj 11 1 ^ r* i h— _| !-4^L_ |^>-T^ 1 1 1 >j&^ 'r N/ i i1 n^•«, i i i i i i i i 1 I I i i i\ 1 1 f 1 i 1 I 1 1 i i i 1 1 i i ~T i i 20 DRILLING RATE ( SECOtfDS/FOOT ) /\ SOUTHERN CALIFORNIA X=2j!=X SOIL. & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATS: 02-20-97 PLATE NO. 113 AT-95 PROPOSED CUT: 22' LM-500 LOGGED BY: H- LJ o EL E V A T I T : I - i -iiii 1 C 20 - 25 *3 rv 1 i 35 ' 1 40— T - i 1- \ JRH ni31LL BIT DIAMETi X =R- 4" / SURFACE ELEVATION:330 PROBABl F BLAST 'BLAST ^ ' • 1 1 _J_ 1 Ssi— •^j 1 —\ >__l Nt S R S 1 \s i i 1*-*s** s f v ^ ^ »* L^^V i "y" • \£i 1 1X>— -•M != — — ^ i1 "" 1 1 ^s^.^ •- i ..=pn 1 1 ! 1 ^ i 1 1 ii i 1 i- I I I 1 1 1 1 i Ii — 1 i i i 11 1 ! 1 1 1 1 i i I ! I f 20 DRILLING RATE ( SECONDS/FOOT /N. SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 114 AT-96 PROPOSED CUT: 20' LM-500 LOGGED BY P UJ*-^ 5 <E HI _J HI JFU\nRiLL BIT DIAMETER XX . 4" X SURFACE ELEVATION 320 PROBABLE BLAST i •BLAST t•T 5 ~I - 10 — - 15 — L-20I 25 — 30 — ! I 35 'i ii T 40 -L_^_ i " 15~i" '_ T T 1 1 1 I 1 ! ! ! i 1 1 1 ! 1 1 f l | 1 1 l 1 i i 1 1 ' l IX l \ ixrk>^J m.o** I l i i 1 t T>4^LjMil ! | I 1 IXi 1 i 1 X"i <.l ii i i 1 i ii i i 11 1 i J> \ Xi i ir i i iiii i i l l i ltill ^-s*j \ \ \ \ \ \ 1 1 1 1 1 1 ii 1 1 1 1i 1 ii j III1i l |1l I ! i i1 i 1 1 1 1 1 1 i l 1 1 1 1 1. ! 1i i 1i i l l 1 1 I i l 1 1 1vr~i i i l i \ l 1 1 II i i1 i i ii i i!i 1i1 ti i1i t. i i 1iii1 i1 i i1i ii i1 1 ii1iiiil . i|i i ii 1i 1 ! i ! 1 i 1 1 !i ii ii1 Iij I i _j i i I i i i1 i Ii i i iI t 1 1 1 i 1 1 ( 1 1 1 1 1 i i 1 I 1 1 ! !ii i i 1 i i 1 | 1 I 1 Ii1 1i i1 i i 1i 1 \i i 1/1 Ii ii1i 1 I iii ! 1 1 1 ii L1 |1 i 1 1 1 1 1 > 1 1 i " •TO 20 -ii DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA X=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMB£rT 9711027 DATE: 02-20-97 PLATE NO. 115 AT-97 PROPOSED CUT: 20' DRILLING DATE:02-18^7 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY >- ua 1" "I 5 1 " • 10- 15 'i za JRH D RILL BIT DIAMETERf 4" X SURFACE ELEVATION 310 PRORARt F Rl AST \ >BLAST , i T 20 ' -, \ 25 [ - ID ! I I " 35 T i J. T 40-i-_ _!_ T _!_ /5 ^ ' 1 41 1 1 i \J | iI I I i yi r i i J i IXr^i |'S—i ii r~jj^-1 *s^i j^ i 1 f^SOi i i 1 _^+— 1<. 1 I !I I I I ** I I 'i 1 I I I I I i 1 1 1 I I I I ! I I I I I I I i u.• i ii ! 1 1 I I1 1 i I jI ~~1 F i i I I i I I- i I I i i I I i I I 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 20 DRILLING RATE ( SECONOS/fOOT /\ SOUTHERN CALIFORNIA X=j=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH jos NUMBEfr. 9711027 DATE. 02-20-97 PLATE NO. 116 AT-98 PROPOSED CUT: 10' DRILLING DATE:02-13-97 DRILLING METHOD/EQUIPMENT:. LM-500 LOGGED BY: JRH DRILL SIT DIAMETER: i." cSURFACE ELEVATION: 280 t- vua ' : : 5 "T 1Q_ 15 7 20 i t 25 1 on ! 1 35 'i I i 1 40-L11 1 1 45!1 4T 7 T 0 5> UJ_i LJ <^^ 1,v ^ V s\ ^ '</ /\ /\ s t ' Nv f* s /s ^ ' f , ^ , 1 v-l^1 b > ^ ^1 ^ ,C ^ i -^ i ,tk^ ; 1 1 2 » 0 1 F'f?aB E A 5L i 31 B .A D 1 i ST £3L i i .ft \ Ii 1 i .ST i i ! .1 I ! 1 1 4T DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA ^fy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 117 AT-99 PROPOSED CUT: 17' LM-500 LOGGED BY »- UJa O CL E V A T I JRH nRiLL BIT DIAMETEfi y T 5 1 - 10-i 1 "^ . 4. 20 I 25 - -jn . I 35 'i i I I 40-^ T i i -44 : j T i iii • 4' Xs" SURFACE ELEVATION 290 PRORARl F RL AST >BLAST i i VI **• '^ I l\ —- — i I —•^ ^"•> I i =a iii Iiii ii i I I I i i I II I ii lii II I II i i i I I ••i*-KLi J-t= "~v>i ii I —— *^ ••^ Ny / ^ I j I i ^^ ^* ••* K **. — • ^ —• & I m- I I •••»•— •i*•r— Ii i I i I II I i~T I • I I I I | I I I I I Pi I I i I I I I I I I ! ii I I f I I i i !I I I I ~l I I I I i ( I i i i i 20 DRILLING RATE ( S£co*rns/FOOT ) 4t> /\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUWBEf?: 9711027 DATE: 02-20-97 PLATE NO. 118 AT-100 PROPOSED CUT: 34- DRILLING DATE:02-1 3-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH QffiLL BIT DIAM£TEHi_ll__ SURFACE ELEVATION: 314_ PROBABLE BLAST DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA X==7=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUWBHr?: 9711027 DATE: 02-20-97 PLATE NO. 119 AT-101 PROPOSED CUT: 25' DRILLING DA LOGGED BY: t- 5 : : 5 10 o I nr. 02--8-97 JRH DRILLING METHOD/EQUIPMENT- - LM-500 JDR1LL BIT DIAMETER^ 4" XX X SURFACE ELEVATION 310 PRORARl F Rl AST i •BLAST , I l i 5 20 25 qn 35 .40 T l 45-L 417 T \<J^r p<1I~\i \\s 1 \ 'V ^*^\ X 1^s^ \ I 1I II III 1 ^ ! 1 i I I II i l \ \ I i I I I I ! I I I f I I I I i I I , iI i i i i i i I M I I I I [ f i I i hI I l i I i i I i i i i { i' I ttj 20 3b 4t DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA '^ry SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 120 AT-102 PROPOSED CUT: 25' DRILLING DATE:02-13-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY t- 3a za EL E V A T ! JRH nRILL BIT DIAMETE? X - - -f '7 1 i m I " 15 ~ T 20 25_ on 35 10 - i - 4 T "• > , i• > ,.,,.,. j f 4' X c;noFAr.F FLEVATION: 320 PROBAR1 F BLAST •BLAST i /s4*=s^ i •~-«s t i --» \sn i ii i --4—r~ 1 I I iiif ^--L. I L/ f /[ -K. __ •^ ^" »^« ^_ a^'v '•* I i — 7r— hsX*s 4 i Xw s N r •" i i i i i i L i i i ( i iiI i I T i _ ii iiii i I I i i j } i i i 20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA <^^X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUWBEH: 9711027 DATE: 02-20-97 PLATE NO. 121 AT-103 PROPOSED CUT: 20' LM-500DRILLING aAT£:02-13-97 DRILLING METHOD/EQUIPMENT. LOGGED BY: JRH DRILL BIT DIAMETER- 4' SURFACE ELEVATION: 320 DRILLING HATE ( SECONDS/TOOT S\ SOUTHERN CALIFORNIA <£j=/ SOIL & TESTING, INC. CALAVERA HEIGHTS' BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 122 AT-104 PROPOSED CUT: 17' DRILLING DA LOGGED BY: t_c. UJa o EL E V A T I T -,J - - i n -1 ^ " -n" - 1 25 -in - -1C - An 1*J : 11 11: 02-13-97 JRH ni DRILLING METHC ^ILL BIT DIAMET3 X>« DP/EQUIPMENT tR- 4" X ^i LM-500 SURFACE ELEVATION:322 PROBABi F BLAST * BLAST ^•"••i mm •—. a I I I1 1 1 i i I i I 1 11 i !L_ l 1 i | I ^^M e=^•i \ •^ •^ •^ ^ «s s •m* ——•«•• MMM »• i*um = 9 :». .— • hs ! 1/ *m 1 k-» < ~- «-" *N =9 r** »-> •^ -— • "3 •«. 1 » p- ••^•B••01 ^» 1 1 1 ! 1 1 ' ' ••*^•^>••ta. ' I •^ 1 1 | ^— 1—_J. 1 I i 1 1 20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA <^^X SOIL & TESTING, JNC, CALAVERA HEIGHTS BY: JRH JOB NUMBEH: 9711027 DATE: 02-20-97 PLATE NO. 123 AT-105 PROPOSED CUT:18' LM-500DRILLING DAT£:02-13-97 DRILLING METHOD/EQUIPMENT:. LOGGED BY: JRH pfflLL BIT niAMFTFR- 4" SURFACE ELEVATION: 322 20 3t> DRILLING RATE ( SECOf<ns;FOOT /\ SOUTHERN CALIFORNIA <S==X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 124 AT-106 PROPOSED CUT:28' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT:. LM-5QO LOGGED BY: JRH DRILL BIT DIAMETER: i_"SURFACE ELEVATION: 315 PROBABLE BLAST -TO DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA <S=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUM6EH: 9711027 DATE: 02-20-97 PLATE NO. 125 AT-107 PROPOSED CUT: 20' DRILLING DATE:02-13-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY 5 f 5i | JRH JJRJLL BIT DIAMETEFL 4" <^ _j_ 5 1" - ,15 T 20 ?^ , Tn - T=; .. 40 45 'i _LT T X" SURFACE ELEVATION ,312 PRORAR! F Rl AST •BLAST i I > ^>^f^'\ "^xj. *V • Nl^r- I I i 1i i 1 I i I i ! I I I => 1 | 1 1 1 1 —•s | 1t \ ^4k.> -^ 1 j 1N1 ^v.f*+ l *r \ • ... i 11 1 \ • 1 l i 1 i T 1 l i 1 i I i I _L 1 ^i \ ii i I ! ! Ii i l ) 1 l 1 !] l l 1 l i 1 l 1 i 1 1 1 ! J1 n •TO 20 DRILLING RATE ( SECONDS/FOOT >/\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH joe NUMBER: 9711027 OATH: 02-20-97 PLATE NO. 126 AT-108 PROPOSED CUT: 6' LM-500 LOGGED BY: t- UJ EL E V A T I O N T : i1 - 1 0 — 1 c: 20 25— - •3n 35 'I Ii 1 40-i T i i 45-1 : 1 7 T JRH nRILL BIT DIAMETER X* - 4" X SURFACE ELEVATION:306 PROBABLF BLAST •BLAST 1 1 "'» 'M^ 1 ^e I =4= 1 i i>r*s; -H— 1 i I ' ^ ••^ ! 1 I i i 1 1 1 1 1 1 1 1 _L i i 1 *m-4*,==r te i i — i : i i i1 i I i i 1 I i , I I I 1 i 1 1 | \ ! I 1 1 i i 1 1 i 1 20 DRILLING RATE ( SECONDS/FOOT 410 y\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUM8EH-. 9711027 DATE: 02-20-97 PLATE NO. 127 AT-109 PROPOSED CUT: 10' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT: LM-500 LOGGED BY: JRH DRILL BIT DIAM£TEH__il_ SURFACE ELEVATION: JLLQ_ PROBABLE BLAST DRILLING RATE ( SECONDS/FOOT y\ SOUTHERN CALIFORNIA ^fy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUW6ER: 9711027 DATE: 02-20-97 PLATE NO. 128 AT-110 PROPOSED CUT: 10' DRILLING DATE: 02-12-97 DRILLING METHOD /EQUIPMENT; LM-500 LOGGED BY: JRH DRILL BIT DIAMFTER- 4' SURFACE ELEVATION: 31° PROBABLE BLAST DRILLING RATE ( SECONDS/TOOT /\ SOUTHERN CALIFORNIA X=T=X SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JDS NUWBSR: 9711027 OATH: 02-20-97 PLATE NO. 129 AT-111 PROPOSED CUT: 10' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DFULL BIT DIAMETER- 4" c LM-500 ~^ 1_ UJ • c. _b 1" 1 0 1 c I 20 25 Tn 35 10- 45-i 4 TT " . o S UJ_i UJ ^£ 1V^T , t s>S ^ •<v >v sr*>•>/ <s \ \ \ \ 1 \ 1^J2 i • ,c ^ 11 1 -^ 1 ^-WT^ 1 1 1» 1 11 111 " 1 1 1 p'R 1 1 1 o 1 B E A JL i B .A U ,S i1 lil1 T i i 1iIiii1ii ii 1ii 1 l J 1 i l' ! 31 i 1 1 .A \\\ \ \iiiil1ii i il £T i i\ Ii iii1| 1 i L 1 i 1 i i • i 1 . 1 i l i i i l i 1 I 1 1 l i il i 1 1 i ii i 20 DRILLING RATE ( SSCONDS/FOOT /\ SOUTHERN CALIFORNIA X=y=/ SOIL & TESTING, INC. CALAVERA HEIGHTS SY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 130 AT-112 PROPOSED CUT: T LM-500 LOGGED BY: H 5o : - - c; 10 — I 15 'i i I i 20 ! ^ i ! J_T 251I I I I o CL E V A T ! JRH .DRILL BIT DIAMETER: 4" SURFACE ELEVATION X#' 30 ! i i i I 35 !i iiT 10 '- T I i " 451-I - 1t T t X F !• 264 •ROBABLE BLAST BLAST i 1 1 44=i i 1 l ^1 1 i " |i i i ii i! 1 ill 1 1 1 1 i 1 I 1 1 — ' MMMMi i i M Milli i i i i i i i i i i i i i i i i i i i i i i ! i ! 1 1 i 1 1 1 f ! 1 1 1 1 i i ( t 1 1 1 1 | I I 1 1 1 1 > I I 1 1 i 1 I 1 i 1 1 1 1 ! 1 1 i 1 1 1 1 ! 1 1 1 1 1 1 i 1 i i 1 > ! 1 i 1 1 1 1 1 1 |i i |l I 1l 1 1 1 I M II II II 1 1 III 1 1 1 1 1 ! 1 i 1 1 1 1 li 11 1 II II 1 1 1 i 1 1 1 i I 1 1 1 1 1 II i i i i i i 1 1 1 I 1 !i iI 1 i i •«•—.» 1 I 9M 1 I I 1 1 1 1 I 1! i 11 V, . ]/\ i ri .L- iiii ii i1I |i1 i|i Iiii]i 1 •fc^. **^.«•, 1 1 i 11 | 1 I 1 1 1 1 11 1 1 I 1 1 1 1 1 i i i i1 i iii i i i I 1 1 i Ii i I I1 ! I ii i i i 1i1 i I ii i 1 'i i i 1 1 1 1 1 1 [! !1 1 11 1 1 i ii i ii i i iM iii i 1. ..L_L.LI I 1 1 | | I iii ii 1 1 1 1 iiti 1 iI ! i ii i 1;r ii ii i [ ii i ! 1 I i! 1 1 ! i 1i ii ii j 1 I ! 1 ! !i i 1 Ii i 1 1 1 1 1 1 I I ! i •f i i IIiiti ii ! 20 DRILLING RATEE ( SECONDS/FOOT ) >/\ SOUTHERN CALIFORNIA \*=y=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 131 AT-113 PROPOSED CUT: 16' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT LOGGED BY: JRH DRILL BIT DIAMETER: 4" LM-500 SURFACE ELEVATION: _292_ 20 "35" DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA ^ry SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATH: 02-20-97 PLATE NO. 132 AT-114 PROPOSED CUT: 20' LM-500 LOGGED BY: i— 0 UJ j Rh\ ^ nRILL BIT DIAMETER v<>iV' 1 - 4" X* SURFACE ELEVATION 294 PROBABLF BLAST BLAST — ' 5 " 1 - 10 i 5IT - 20 25 i i -30- 35 40- " 45l 4Ti T i i 1 SrCTV ^*4«*. ii i i i 1 1 ii i 1 1 1 1 1I 1i ) 1i i I i II i I. I i i i I i i ! ] i i 1 i1i i < 1 ' 1 1 i 1 j 1 [ I. i i i 11 Ii i 1 1 i I ~1 I 1 1 1 1 i tiii tt)20 DRILLING RATE ( SECONDS/TOOT /\ SOUTHERN CALIFORNIA <S=>> SOIL & TESTING, JNC. CALAVERA HEIGHTS SY: JRH JOB NUMBE3: 9711027 DATS: 02-20-97 PLATE NO. 133 AT-115 PROPOSED CUT: 12' LM-500 LOGGED BY H UJ . . ~! - 10 — 15 - 20 25_ 30 - 35 0 EL E V A T I 40-i- T_L 45...i 4 TT JRH DRILL BIT DIAMETER; 4" X / SURFACE ELEVATION 302 PRORARl F Rl AST i »BLAST LVi I I i 1 j 11 I I I I 1 11 MB = 1 ! 1 1 1 j 1i 1 1 i i i iI ii i i I ii I =L= 1 i 1 1 ~- 1 11 1 1 1 ~h^•B 1 1 u_ kk 1 +1i i 1i 1 j 1 I i 1 i 1 1 1 i 1 1 1 i i 1 ii 1 1i ! j | 1 1 . ' '-\ tt 20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA X=y=X SOIL & TESTING, INC. CALAVEHA HEIGHTS BY: JRH J03 NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 134 AT-116 PROPOSED CUT: 14' LM-500DRILLING DATE:02-18-97 DRILLING METHOD/EQUIPMENT;. LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 304 DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA X=j=/ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER; 971 1027 DAT£: 02-20-97 PLATE NO. 135 AT-117 PROPOSED CUT: 14' LM-500DRILLING DATE:02-18-97 DRILLING METHOD/EQUIPMENT: LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 304 DRILLING RATE ( SECONDS/FOOT ) y\ SOUTHERN CALIFORNIA X==r==X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBED: 9711027 DATE: 02-20-97 PLATE NO. 136 AT-118 PROPOSED CUT:10' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT;. LOGGED BY: _ 'r"~' ' LM-500 JDRiLL BIT DIAMETER- 4" SURFACE ELEVATION: 264 K- UJa 1' 5 J ~ 10 1 5 47 25 iI I "3D— 35 4O— ! 45lI 4 7 T zo 5 UJ UJ <<^ >v ^T I i S >V | I <^ ^\ yC^ \ «*• ^^ ,c ^ -^ i vt k >^ I \ » II • I F»fl iI OB E A JL B A I 1 ST i IU I ./s i kST f i i [i 1 fii i i i i i ! 1 ' !20 DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA <^K> SOIL & TEST1NG,1NC. CALAVERA HEIGHTS BY: JRH JOB NUW6EH: 971 1027 DATE: 02-20-97 PLATE NO. 137 AT-119 PROPOSED CUT: 15' DRILLING DA LOGGED BY: K- •2 O EL E V A T I T J r; 1 n 1 c - 20 25 "3 n 1 35 ' 1 _l - 1 - 1 Ti:- 02-12-97 JRV- <$ TH DRILLING METHC ^iLL BIT DIAMET1 ^ <^ 3D /EQUIPMENT ER: 4" *^ LM-500 SURFACE ELEVATION:279 PROBABLE BLAST >BLAST 1 ^»^v * s f>X ^^^/ *>«• 1 i 1 — .- V I I I I 1 i 1 ^ f X "^f^ •*c i • i — \—~ — 1 1 1 I 1 i 1 1 i i } \ 1 1 1 i I i i 20 DRILLING RATE ( SECONDS/FOOT 4TD S\ SOUTHERN CALIFORNIA X=5&/ SOIL & TESTING, iNC. CALAVERA HEIGHTS BY: JRH JOB NUWBEH: 9711027 DATS: 02-20-97 PI ATE NO. 138 _ AT-120 PROPOSED CUT: 10' LM-500 LOGGED BY: t- 111o zg m UJ JRH DRILL HIT DIAMFTER- 4"^linfAr.F F1FVAT10N- 274 0^'^3 7 ^ - 10-, 1 5 - 7 20 25_ 20 - 35 40—— I t " 45lI : tT i iiI i . ^J^- ^JK PROBARi F RL AST 1 »BLAST i i r i i i i i i i i t i i i i i 1 •• 1, • 1 _l ! 1 I 1 •^i •^ = 'I1 be i — 1~~ a» k. 1 —•HK" 1 1 1 •M> Vji 1 1 1 •£X | 1 1 1 1 i | 1 1 i ii i i I \ i 1 > iiii i l i i i } i i 1 i li i ii i i ii i l i i ii i ~~I 1 i 1 1 i i I ii i i t 1 ii i 'i i i -TO 20 DRILLING RATE SECONDS/FOOT >/\ SOUTHERN CALIFORNIA X^LX SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBE3: 971 1027 DATE: 02-20-97 PLATE NO. 139 AT-121 PROPOSED CUT: 26' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY t- UJ O UJ UJ JRH DRILL BIT DIAMETER ^T^ ,~\P* 4 " / SURFACE ELEVATION 270 PRORAR1 F Rl AST BLAST , 1 - . 5_ " 10T 1 c; - 20- - 25 1 -an 35 .,10 ' «i. - 17T i li 1 1 1 i !ii i i 1i i 1i 1i i lt t i i l 1 i ! • lit i 1 r i 1 1 I 1I i i 1 l 1ii i 1ii ii i i i 1 1 X (/ jH*j x> 1 Ssl •*• J rl r-s. 1A ^*•* X* "*• /)X| I 1 ^> -1/ ; 1 1 • , i i i "T i i 1 i i i i i 1 1 i 11 i i i i ! i tb 20 3*0 ^C DRILLING RATE ( SECONDS/TOOT ) /\ SOUTHERN CALIFORNIA ^fy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 140 AT- 122 PROPOSED CUT: 27' DRILLING DATE: 02-12-97 DRILLING METHOD /EQUIPMENT:LM-500 LOGGED BY- i- UJ zo CL E V A T I JRl-* DRJLL BIT DIAMETEE •^^^^^ ^ L- 4« k^ SURFACE ELEVATION 259 PROBABLF BLAST i •BLAST T -54 ; i 7 10 ' - 15 : T "70^ — 30 - 35_. 40 ; T " 15T i '. I• I T ! I <: 1 I I I •x.•s ^.V, y "=F^ i ^•^ •— ' ^ s •> ** s h>. ~~ \,sIn- ^" / X ** . 1 >, > *N ^ \ K, / •^2*— .— •« \ k: 1 ' I i 1 1 1 i I 1 1 i 1 i 1 i TD 2D DRILLING RATE ( SECONDS/FOOT ) V\ SOUTHERN CALIFORNIA ^^=y SOIL & TESTING, INC, CALAVERA HEIGHTS BY: JRH jos NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 141 AT-123 PROPOSED CUT: 19' DRILLING DATE: 02-12-97 DRILLING METHOD/EQUIPMENT LM-500 LOGGED BY t- UJ : : 5 — . ii 10 o UJ uj JRH DRILL BIT DIAMETER- 4" X X SURFACE ELEVATION 252 PROBAR1 F BLAST \*BLAST , 1 1 15 T 20 i 25 11 -3n ^ " 35 ~i Ti I no 1 Ti " ^i •• } T 1 i i 1 i 1 i L_ i i iii\ i i 1 1 i «^ i i •«. 4 X -^ *,•^««. •^ —»i, ^ i/i ,— -*. — ^^ •< ^f •**/ i i i *S|^ -— •^K. !=*v ** *f *. •^ ^ •** ^^* v "^=i , > \ \ \ • \ \ \i1 i i i i i i ii i i i i i i r~ii i t i I 1 1 I . i >i ii ii/ i i iii ft)20 DRILLING RATE ( SECONDS/TOOT 4t) y\ SOUTHERN CALIFORNIA <^&X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBEa: 9711027 DATE: 02-20-97 PLATE NO. 142 AT-124 PROPOSED CUT: 17' DRILLING DATE:02-18-97 DRILLING METHOD/EQUIPMENT; LM-500 LOGGED BY c. UJ 2o HI JRH oRILL BIT DIAMETEfi / • 4" / mmPAr.F F1EVAT10N: 287 PRORAR1 F Bl AST BLAST — - • • — • - • • i " T -I 5 -. T - 1 5 : 7 20 25T •jn i 35 'i iTT 40-1 T i i 45li '. 47 T | s <. ^ i i i i i i i i 1 j-^vi>i i ^ ^* (y X s^ ~t I i j I 1 i i 1 1 | 1 1 1 1 1 1 1 i J— i, 1 1 | 1 / 1 i 1 | | 1 / 1 1 I 1 1 1 1 1 1 1 1 1 1 [ 1 1 1 1 1 i i -TO 20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CAHFORNJA <^&X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMSEf!: 971 1027 DATE: 02-20-97 PLATE NO. 143 AT-125 PROPOSED CUT: 91 DRILLING DATE:02-18'97 DRILLING METHOD/EQUIPMENT; LM-500 LOGGED BY: JRH DRILL BIT DIAMETER^ 4" SURFACE ELEVATION: 332 H lil ; : . _ 7 i 10 1 5 - 4 20 25— TO 35 - 0 EL E V A T I X X**•PRORA'Rl F Rl AST •BLAST I 10 . i 4 T T i i I I x•^ , INL i If I i IL T~t— I Viii i ^i j f "^s ^> ••«. -^ -«. ** > I I I I II I i !:i I I I I I I i I I I I I j I I I I I I I tb 20 3"D 41 DRILLING RATE ( SECONDS/FOOT /X SOUTHERN CALIFORNIA X=j=^ SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBEH: 9711027 DATE: 02-20-97 PLATE NO. 144 AT-126 PROPOSED CUT: 5' LM-500 LOGGED BY: C- 111 0 EL E V A T I JR^i DHILL BIT DIAMETER T(^^ J»^J^ • 4" X SURFACE ELEVATION P • 332 •ROBABLE BLAST BLAST i T " " 5 T l m I 15 ; 4 20 ' 1 25— 1 Tn I 35 'i i l 1 40 ! T i T 15 'I : iT i ! 1 s.^•s. i 1 >*^•f i i ! 1 1 1 1 I [ 1 ii I 1 1 I l | l _j^ 1 I 1 i 1 i i i i1 i I I i I l i I I I I I t l I ! | | I I i •TO 20 DRILLING RATEE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA X=j=X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBEH: 9711027 DATE: 02-20-97 PLATE NO. 145 AT-127 PROPOSED CUT:15' LM-500DRILLING DATE: 02-12-97 DRILLING METHOD /EQUIPMENT; LOGGED BY: JRH DRILL BIT DIAMETER- 4" SURFACE ELEVATION: 336 \ o EL E V A T I O N .^^Xi ^^^/1 PR08AR1 F BLAST i BLAST ii T: i _ 10 .15 -?0 7^ TO 35 i 11 -10 '1 I 1 1 15 'i 4 - 47T | Ii i I 1 ,r* s ^ -*• »s V, f s s f V D ^^ (^"^ 1 20 j 1 31D i 1 1 I 1 f 1 i i ( ) 1 1 1 1 I I I 1 1i 1 1t i i i 4t DRILLING RATE ( SECONDS/FOOT y\ SOUTHERN CALIFORNIA <^^X SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUMBER: 971 1027 DATE: 02-20-97 PLATE NO. 146 AT-128 PROPOSED CUT: 6' LM-500 LOGGED BY H LJ - ~ ~ =. ~ ~ 10- 1 5 EL E V A T I O N JRH QRILL BIT DIAMETER ^^T^X ^^^j^ ^^^ - 4" *^ SURFACE ELEVATION P 346 •ROBABLE BLAST BLAST 7 20 7 25— i -ir\ i 35 'i I ! I 40 ' : iii " .15T I - 4 T I I I / y i S^•^^i -^I ^r*Z I I I I I I / — V •M* •^ ^|X \ I I I i i I I I *m ~~* ) •4=k4- i i •• •» •— ^ ~mm ^iMI >~m ••^ •M 31••• 1 1 1 i I IIIi I ! ii I i i t T I i l" 1 1 I 1 I ! I 1 i 1 i i i 20 DRILLING RATE ( SECONDS/FOOT /\ SOUTHERN CALIFORNIA ^fy SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOS NUM8H3: 9711027 DATE: 02-20-97 PLATE NO. 1471 VILLAGE Q AT-129 PROPOSED CUT: 19' LM-500DRILLING DATE:02-19-97 DRILLING METHOD /EQUIPMENT: LOGGED BY: JRH DRILL BIT DIAMETER: 4" SURFACE ELEVATION:378 t- IUa 1 1 . . c. 11 m I J 15 — r i 4r T i '"i i 25~ 3D. 35 10 T Ii 15 'I4. 17 T zo Z> UJ_JLJ <^ iS .1,v^ t <\ ^V^ ,xs w_ ^ p> --* \ V t — —.^ ^sX ^^ ^-> ^/ b ^B ^, -— ^^ ^ > # \ ,c<^-^ ! \^k ^ 2 i • 0 F»FI i OB E A JL 31 B A D LI ,ST i f i j 3L f .£kST i It i ii <T DRILLING RATE ( SECONDS/FOOT ) /\ SOUTHERN CALIFORNIA \^r=y SOIL & TESTING, INC. CALAVERA HEIGHTS BY: JRH JOB NUMBER: 9711027 DATE: 02-20-97 PLATE NO. 148 SCS&T 9711027 February 28, 1997 Appendix A, Page 1 r SEISMIC REFRACTION SURVEY GENERAL: Seismic refraction surveys were performed previously (1973, 1981, 1983 and 1988) specifically to facilitate the project planning by determining the variation in seismic velocity of the underlying materials and to determine a reasonable approximation of the depth from the surface to the boundaries between rippable, marginally rippable, and nonrippable bedrock. The seismic survey measures the velocities of soundwaves as they travel through various materials. The velocity depends on the density of the materials. Dense materials such as granitic rock conduct soundwaves at a high velocity, whereas, loose materials such as topsoils conduct the soundwaves at much lower velocities. The seismograph's depth of investigation is closely related to the length of the seismic traverse. For a particular length of traverse, e.g., 100 feet, using a ratio of 3:1 between length and depth, we conclude that this length of survey line will detect the boundaries between materials of varying density and velocity to a depth of approximately 33 feet. The length of traverses in this survey range from 50 feet to 100 feet, which should reach depths of approximately 17 feet to 33 feet. FIELD INVESTIGATION: Fifty-one seismic traverses were performed by our firm and ten were performed by others on the subject site between 1973 and 1988. These traverses were located in areas of proposed cuts. The locations of all of the traverses are shown on Plate Numbers 1 through 19. Logs of the traverses that were retained in our files are presented in this Appendix A. DISCUSSION OF EXCAVATION CHARACTERISTICS: The results of the seismic survey indicate that the metavolcanic and granitic bedrock is rippable to varying depths ranging from approximately two feet to in excess of 30 feet below existing grade. Marginally rippable and nonrippable rock is present below these depths. It should be noted that there are isolated hard rock floaters within rippable materials which may require blasting to facilitate grading operations. A more detailed description of the rippability characteristics and a summary of each seismic traverse are presented below. RIPPABILITY CHARACTERISTICS OF GRANODIORITIC ROCK RIPPABLE CONDITION (0 - 4,500 ft./sec.): This velocity range indicates rippable materials which may consist of decomposed granitic rock possessing random hardrock floaters. These materials will break down into slightly silty, well graded sand, whereas the floaters will require disposal in an area of nonstructural fill. Some areas containing numerous hardrock floaters may SCS&T9711027 February 28, 1997 Appendix A, Page 2 <a ** present utility trench problems. Further, large floaters exposed at or near finish grade may * present additional problems of removal and disposal. -PI * Materials within the velocity range of from 3,500 to 4,000 fps are rippable with difficulty by backhoes and other light trenching equipment. -MSt MARGINALLY RIPPABLE CONDITION (4,500 - 5,500 ft./sec.): This range is rippable m with effort by a D-9 in only slightly weathered granitics. This velocity range may also include „ numerous floaters with the possibility of extensive areas of fractured granitics. Excavations may m produce material that will partially break down into a coarse, slightly silty to clean sand, but containing a high percentage of + 1/4 inch material. Less fractured of weathered materials may — be found in this velocity range that would require blasting to facilitate removal. -<*"%. Material within this velocity range are beyond the capability of backhoes and lighter trenching equipment. Difficulty of excavation would also be realized by gradalls and other heavy trenching equipment. Ki"j£ NONRIPPABLE CONDITION (5,500 ft./sec. and Greater): This velocity range includes --'*S« nonrippable material consisting primarily of fractured granitics at lower velocities with increasing hardness at higher velocities. In its natural state, it is not desirable for building pad ,i« subgrade. Blasting will produce oversize material requiring disposal in areas of nonstructural fill. at ** This upper limit has been based on rippability with a Caterpillar D-9L using a conventional #9 *** single shank ripper. However, this upper limit of rippability may some times be increased to '» 7,000 to 8,000 fps material using the D-9 mounted #9 Series D Ripper. >» RIPPABILITY CHARACTERISTICS OF METAVOLCANICS AND ASSOCIATED HYPABYSSAL ROCKS AND TONALITIC ROCKS *** « RIPPABLE CONDITION (0 - 4,500 ft./sec.): This velocity range indicates rippable materials which may vary from decomposed metavolcanics at lower velocities to only slightly ... decomposed, fractured rock at the higher velocities. Although rippable, materials may be produced by excavation that will not be useable in structural fills due to a lack of fines. is- Experience has shown that material within the range of 4,000 to 4,500 fps may often consist of SCS&T 9711027 February 28, 1997 Appendix A, Page 3 severely to moderately fractured angular rock with little or no fines and sizeable quantities of + 1/4 inch material. For velocities between 3,500 to 4,500 fps, rippability will be difficult for backhoes and light trenching equipment. MARGINALLY RIPPABLE CONDITION (4,500 - 5,500 ft./sec.): Excavations in this velocity range would be extremely time consuming and would produce fractured rock with little or no fines. The higher velocities could require blasting. Trenching equipment would not function. NONRIPPABLE CONDITION (5,500 ft./sec. and Greater): This velocity range may include moderately to slightly fractured rock which would require blasting for removal. Material produced would consist of a high percentage of oversize and angular rock. Rippability of Metavolcanics may be accomplished for higher velocities using the Caterpillar D-9 with the #9 D Series Ripper. Due to the fractured nature of the metavolcanics, ripping might be accomplished in as high as 8,000 fps material. NOTE: This upper limit has been based on rippability with a Caterpillar D-9L using a conventional #9 Single Shank Ripper. However, this upper limit of rippability may sometimes be increased by using other heavy excavation equipment. The above mentioned rippability limits are based on a modification of charts prepared by Caterpillar Company and the article in "Roads and Streets," September 1967. According to the Caterpillar Performance Handbook, dated October 1986, the upper limits of rippability has increased over the aforementioned limits. It should be realized, however, that our experience indicates that the older charts are more reliable under actual field conditions. SUMMARY OF SEISMIC TRAVERSES (1988): The apparent velocities were measured at both ends of the seismic traverses, and the seismic traverse performed in the opposite direction is designated number R. SCS&T 9711027 February 28, 1997 Appendix A, Page 4 Traverse Apparent Velocities ft/sec.Comments Traverse No. S-l - Proposed Cut 15 Feet 0'-3' 1,750 3'-18' 2,500 18'-33' 6,000 Traverse No. S-1R o'-ir 2,000 11-31' 3,800 31'-33' 8,000 Traverse No. S-2 - Proposed Cut 10 Feet 0'-15' 2,700 15'-33' 6,000 Traverse No. S-2R 0'-6' 2,700 6-28' 4,000 28'-33' 8,000 Traverse No. S-3 - Proposed Cut 20 Feet 0'-5' 1,750 5'-19' 3,200 19'-33' 5,000 Traverse No, 0'-2' 2-25' 25'-33' S-3R 1,500 3,100 6,000 Rippable Topsoils and Weathered "D.G." Rippable Decomposed Granitic Bedrock Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Rippable Decomposed Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Rippable Decomposed Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Paleosols Rippable Paleosols and Granitic Bedrock with Hardrock Floaters Marginally Rippable Granitic Bedrock with Hardrock Floaters Rippable Topsoils and Paleosols Rippable Paleosols and Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Traverse No. S-4 - Proposed Cut 30 Feet 0'-5' 1,500 5'-24' 2,500 24'-33' Traverse No. S-4R 0'-4' 4-25' 25'-33' 13,000 2,300 3,000 7,000 Rippable Topsoils and Paleosols Rippable Paleosols and Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Paleosols Rippable Paleosols and Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock SCS&T 9711027 February 28, 1997 Appendix A, Page 5 Traverse Apparent Velocities ft/sec.Comments Traverse No. S-5 - No Proposed Cut 0'-7' 3,400 7'-33' 4,500 Rippable Decomposed Granitic Bedrock Marginally Rippable Granitic Bedrock with Hardrock Floaters Traverse No. S-5R 0'-7' 7-33' 3,000 4,500 Rippable Decomposed Granitic Bedrock Marginally Rippable Granitic Bedrock with Hardrock Floaters NOTE: A rock outcrop exists within Traverse S-5 and S-5R. Surface and near surface rock within Traverses S-5 and S-5R have velocities of 15,000 fps. The materials underlying the area of surface rock are expected to be nonrippable. However, the materials surrounding the exposed surface rock appear rippable to depths of approximately seven feet and marginally rippable below seven feet. Thus, the exposed surface rock may represent the upper surface of a large hardrock floater which is not rippable. The vertical dimension of the hardrock cannot be determined, but horizontally appears to be approximately 20 feet to 30 feet in diameter. Traverse Apparent Velocities ft/sec.Comments Traverse No. S-6 - Proposed Cut 15 Feet 0'-7' 1,600 7'-30' 5,000 Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Traverse No. S-6R 0'-5' 5-19' 19'-33' 1,300 4,500 6,000 Traverse No. S-7 - Proposed Cut 10 Feet 0'-19' 3,500 19'-33' 10,000 Traverse No. S-7R 0'-26' 26-33' 2,500 15,000 Traverse No. S-8 - Proposed Cut 20 Feet 0'-6' 4,000 6'-33' 7,000 Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Decomposed Granitic Bedrock Nonrippable Granitic Bedrock Rippable Topsoils and Decomposed Granitic Bedrock Nonrippable Granitic Bedrock Rippable Paleosols Nonrippable Paleosols and Granitic Bedrock SCS&T9711027 February 28, 1997 Appendix A, Page 6 Traverse Apparent Velocities ft/sec.Comments Traverse No. 0'-33' Traverse No. 0'-4' 4'-33' Traverse No. 0'-3' 3'-33' Traverse No. 0'-3' 3'-13' 13'-33' S-8R 5,500 S-9 - Proposed Cut 12 Feet 1,350 3,500 S-9R 1,500 3,500 S-10 - Proposed Cut 20 Feet 1,750 3,000 4,600 Marginally Rippable to Nonrippable Paleosols and Granitic Bedrock with Hardrock Floaters Rippable Topsoils and Paleosols Rippable Paleosols Rippable Topsoils and Paleosols Rippable Paleosols Rippable Topsoils and Paleosols Rippable Paleosols Marginally Rippable Paleosols and Granitic Bedrock with Hardrock Floaters Traverse No. S-10R 0'-4' 4'-ir 1,500 3,700 4,900 Traverse No. S-ll - Proposed Cut 10 Feet 0'-8' 1,600 8-30' 8,000 Traverse No. S-11R 0'-9' 9-17' 2,000 10,000 Traverse No. 0'-3' 3'-22' 22'-33' Traverse No. 0'-7' 7-33' Traverse No. 0'-12' 12'-30' Traverse No. 0'-9' 9'-30' S-12 - Proposed Cut 7 Feet 1,500 2,800 10,000 S-12R 1,750 4,900 S-13 - Proposed Cut 10 Feet 1,500 7,000 S-13R 1,000 7,000 Rippable Topsoils and Paleosols Rippable Paleosols Marginally Rippable Paleosols and Granitic Bedrock with Hardrock Floaters Rippable Topsoils and Weathered "D.G." Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Rippable Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Rippable Topsoils and Weathered Metavolcanics Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered Metavolcanic Nonrippable Metavolcanic Bedrock SCS&T 9711027 February 28, 1997 Appendix A, Page 7 Traverse Apparent Velocities ft/sec.Comments Traverse No. S-14 - Proposed Cut 10 Feet 0'-2' ' 2,000 2'-30' 5,500 Traverse No. S-14R 0'-6' 6'-30' 2,500 4,200 Rippable Topsoils and Weathered Metavolcanics Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered Metavolcanics Rippable Metavolcanic Bedrock with Fractured Hardrock Traverse No. S-15 - Proposed Cut 30 Feet Q'-T 1,750 T-33' 10,000 Rippable Topsoils and Weathered "D.G." Nonrippable Granitic Bedrock Traverse No. S-15R 0'-4' 4-15' 15'-33' 2,400 5,000 8,500 Traverse No. S-16 - Proposed Cut Unknown 0'-18' 3,500 18'-33' 8,000 Traverse No. S-16R 0'-4' 4'-30' 3,000 7,500 Traverse No. S-17 - Proposed Cut 10 Feet 0'-12' 3,400 12'-33'5,500 Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Fractured Metavolcanics Nonrippable Metavolcanic Bedrock Rippable Topsoils and Fractured Metavolcanics Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered Metavolcanics and "D.G." Nonrippable Metavolcanic Bedrock and Granitic Bedrock with Hardrock Floaters Traverse No. S-17R 12' -33' 3,400 5,500 Rippable Topsoils and Weathered Metavolcanics and "D.G." Nonrippable Metavolcanic Bedrock and Granitic Bedrock with Hardrock Floaters Traverse No. S-18 - Proposed Cut 14 Feet 0'-3' 2,000 3'-13' 4,000 13'-33'5,500 Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock SCS&T 9711027 February 28, 1997 Appendix A, Page 8 Traverse Apparent Velocities ft/sec.Comments Traverse No. S-18R 0'-3' 3'-20' 20'-33' Traverse No. 0'-3' 3'-25' 25'-27' 2,200 4,000 5,500 S-19 - Proposed Cut 19 Feet 2,000 4,000 15,000 Traverse No. S-19R 0'-2' 2'-20' 20'-33' 1,750 4,500 10,000 Traverse No. S-20 - Proposed Cut 15 Feet 0'-19' 2,800 19'-27' 4,900 27'-30' 14,000 Traverse No. S-20R 0'-6' 19'-30' Traverse No. 0'-5' 5'-24' 24'-33' 2,200 5,000 10,000 S-21 - Proposed Cut 17 Feet 1,500 5,500 12,000 Traverse No. S-21R 0'-5' 5'-26' 26'-33' Traverse No. 0'-3' 3'-33' 1,750 5,000 10,000 S-22 - Proposed Cut 30 Feet 3,000 5,500 Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Weathered Metavolcanics Rippable Metavolcanic Bedrock Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered Metavolcanics Marginally Rippable Metavolcanic Bedrock Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered Metavolcanics Marginally Rippable Metavolcanic Bedrock Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered Metavolcanics Marginally Rippable Metavolcanic Bedrock Nonrippable Metavolcanic Bedrock Rippable Topsoils and Weathered "D.G." Nonrippable Granitic Bedrock Nonrippable Granitic Bedrock Rippable Topsoils and Weathered "D.G." Marginally Rippable Granitic Bedrock with Hardrock Floaters Nonrippable Granitic Bedrock Rippable Topsoils and Weathered Metavolcanic and "D.G." Nonrippable Metavolcanic Bedrock and Granitic Bedrock with Hardrock Floaters Traverse No. S-22R 0'-5' 5'-33' 2,000 Rippable Topsoils and Weathered Metavolcanic and "D.G." 10,000 Nonrippable Metavolcanic Bedrock and Granitic Bedrock with Hardrock Floaters SCS&T 9711027 February 28, 1997 Appendix A, Page 9 Apparent Velocities Traverse ft/sec. Comments Traverse No. S-23 - Proposed Cut 2 Feet 0'-3' 1,400 Rippable Topsoils and Weathered Metavolcanics 3'-33' 5,100 Marginally Rippable Metavolcanic Bedrock Traverse No. S-23R 0'-3' 2,100 Rippable Topsoils and Weathered Metavolcanics 3'-33' 4,700 Marginally Rippable Metavolcanic Bedrock NOTE: Additional seismic traverses were performed in conjunction with the preparation of a previous geotechnical report. The data for these additional traverses are presented in this Appendix A. SEISMIC TRAVERSE LIMITATIONS: The results of the seismic survey for this investigation reflect rippability conditions only for the areas of the traverses. However, the conditions of the various soil-rock units appear to be similar for the remainder of the site and may be assumed to possess similar characteristics. Our reporting is presently limited in that refraction seismic surveys do not allow for prediction of a percentage of expectable oversize or hardrock floaters. Subsurface variations in the degree of weathered rock to fractured rock are not accurately predictable. The seismic refraction method requires that materials become increasingly dense with depth. In areas where denser, higher velocity materials are underlain by lower velocity materials, the lower velocity materials would not be indicated by our survey. All of the velocities used as upper limits from rippability are subject to fluctuation depending upon such local variations in rock conditions as: a) Fractures, faults and planes of weakness of any kind. b) Weathering, and degree of decomposition. c) Brittleness and crystalline nature. d) Grain Size. It should be noted that ripping of higher velocity materials may become totally dependent on the time available and the economics of the project. Ripping of higher velocity materials can be achieved but it may become economically infeasible. i , i i i * It till i i i i 180 120 60 — 150 100 50 120 SO 40 i • ' I ,! J-: 14. i;:1 I1!!: I • DISTANCE BOUTHEnN CALIFORNIA SOIL & TESTING , INC. HAN aiaaa, CALIFORNIA JOB Catavoras Hills _ GEOLOGIST D-S. . JOB NO 8821142 ELEVATION _._W> TRAVERSE NO lr_l_._ SURFICIAL MAT'L. Residual Soils TRAVERSE TYPE ROCK TYPE Granitic 01 a tQ Mo t i i i 180 120 60 150 100 50 i i _ ,.-ii i • r~ t 1 i1 , i i i i i I ! 1 p i iii i i 1 i I I -j 1 1 " - 1 1 ^ i i • i 1 i i I! h i ' 1 - | i i ij 1 1 . 1 1 i J > ' l j 1 a i i 1 . - i - • • i " • i i - i - - ^ - _ _ - 1 " _ ~ - i 1 80 40 90 60 30 DISTANCE SOUTHERN CALIFORNIA BOIL A TEBTINQ, INC. • ••O HIVIMOALB BTOBBT• AIM m«aa, CALIFORNIA •«i«o jnn Calaveras Hill^ GEOLOGIST H.S JOB NO. 8821142 ._ ELEVATION 346' TRAVERSE NO SZ2 . SURFICIAL MAT'L. Res Idua.l So i I s TRAVERSE TYPE ROCK TYPE Granitic Plate Nn. i j *a i j i ii i t »ii ii t i ISO 120 60 150 100 50 DISTANCE JOB.Calaveras Hills BOUTHERN CALIFDPINIA BOIL A TESTING, INC. • AN DIBOO, CALIFORNIA ••1BO JOB NO. 8821H2 TRAVERSE NO S-3 TRAVERSE TYPE r.Fnmr.isT -. ELEVATION _329_'_ SURFICIAL MAT'L. faleosol ROCK TYPE Granitic ISO 120 60 150 100 50 120 80 40 DISTANCE JOB. SOUTHERN CALIFORNIA BOIL & TESTING, INC. • ••O MIVBRDALB BTABBT • AN Dl«aa, CALIFORNIA •B1«O Calaveras Hills 882H42 GEOLOGIST D.S. ELEVATION 293' TRAVERSE NO. __ TRAVERSE TYPE S-4 SURFICIAL MAT'L. Residual/Pal eosol ROCK TYPE Granit1c Plate No. 81 it i i Ii ii I i i a ki i I i I i i 180 120 60 150 100 50 120 SO 40 f- 90 100 180 200 270 300 DISTANCE BOUTHERN CALIFORNIA BOIL & TESTING, INC. • ••O BIVBBDAL* •THMBT • AN DIBOD, CALIFORNIA JOB Calaveras Hills JOB NO. 0821142 D.S. ELEVATION 27! TRAVERSE NO ___Sj;L. . . SURFICIAL MAT'L. Residual Soil TRAVERSE TYPE ROCK TYPE Granitic Plate No. 82 i i 1 a i i ISO 130 60 150 100 50 120 80 40 DISTANCE SOUTHERN CALIFORNIA SOIL & TESTING , INC. • ••O OIV1BDAL1 »TH««T • AN m»OO, CALIPOniMIA • •1BO JOB Calaveras Hills JOB NO. 8821142 TRAVERSE NO. _J>I 6 TRAVERSE TYPE GEOLOGIST ELEVATION SURFICIAL D.S. 312' ROCK TYPE Granitic i i i * a i * 1 i i i i li i i i i & a 1AO 120 60 150 100 50 120 §0 40 90 60 30 -r 60 40 20 DISTANCE JOB.Calaveras Hills SOUTHEPN CALIFORNIA BOIL & TESTING, INC. • ••O BIV1WDAL1 «T«««T • AN OimOO. CALEDONIA • B 1 • Q JOB NO. 8821142 TRAVERSE NO ^Z.. TRAVERSE TYPE „ GEOLOGIST D.S. ELEVATION ___ SURFICIAL MAT'L. Residua1 So11 ROCK TYPE Granitic Plate No. 84 180 120 60 150 100 50 120 SO 40 90 60 30 DISTANCE JOB. SOUTHERN CALIFORNIA SOIL A TESTING , INC. • ••O• AN DIBtjn, CALIPOHNIA ••1BO Calaveras Hills 8821142 TRAVERSE NO S:§_ TRAVERSE TYPE GEOLOGIST D.S. ELEVATION _2§6_!_ SURFICIAL MAT'L. _ ROCK TYPE Granitic Plate No. 85 i »1 i I i I i I i i i i i i i ISO 120 60 150 100 50 120 SO 40 DISTANCE SOUTHERN CALIFORNIA BOIL & TESTING, INC. • ••O RIVIODAL* BT«««T • AN DIBCJC), CALIFORNIA • •1BO JOB Calaveras Hills GEOLOGIST D.S. JOB NO. R8P114? ELEVATION TRAVERSE NO. _ir.2 SURFICIAL MAT'L. Res.Ldua_]_Soi.l TRAVERSE TYPE ROCK TYPE Paleosol . ill i a i i i i i it I i * iso no 60 150 100 50 120 80 40 DISTANCE BDUTHEBN CALIFORNIA BOIL & TESTING, INC. • ••O HIVMRDAL* «T«««T • AN DIBOO, CALIPOFINIA • •1BO JOB Calaveras Hills GEOLOGIST D-s- JOB NO. 8821H2 ELEVATION 260' TRAVERSE NO. S-10 SURFICIAL MAT'L. Residual Soil TRAVERSE TYPE ROCK TYPE Paleoso1 ii It ii ti I i t i i it t *» * * 180 120 60 150 100 50 120 80 40 90 60 30 DISTANCE Calaveras Hills GEOLOGIST SOUTHERN CALIFORNIA SOIL & TESTING, INC. • B»O niv«ODALE a-me«T • AN DIBOD, CALIFORNIA BB1BO JOB NO 8821142 TRAVERSE NO. _SdLl TRAVERSE TYPE ROCK TYPE ELEVATION 4Q5.1 SURFICIAL MAT'L. Resldyal.._SoiL fc i t * * i 180 120 60 r 150 100 50 120 80 40 UJ5 DISTANCE SOUTHERN CALIFORNIA BOIL & TESTING, INC. • BBO «IV««DALE arneiT • AN 01*00, CALIFORNIA BB1OO Calaveras Hills GEOLOGIST JBR/RF |OU NO. 1§21142_ ELEVATION _39CV TRAVERSE NO. __JLJ2 .„ SURFICIAL MAT'L. ._Res_idual S_gj 1_ TRAVERSE TYPE ROCK TYPE _ Grail ijtic Plate No. 88 II i <I * ii i i i i i i ii Ii la ii fci hi ii 180 120 60 r 150 100 50 120 80 40 DISTANCE SOUTHERN CALIFORNIA SOIL A TESTING, INC. PIV/KRDALE BTPBIT • AN m«aa, CALIFORNIA antcta )OB Calaveras Hills GEOLOGIST D.S. ]0l) NO 8821142 ELEVATION 32Qi TRAVERSE NO. _S-]5_. _ SURFICIAL MAT'L. -.Residua] Soil TRAVERSE TYPE . ROCK TYPE __Gj2an_Lt 1JL ti 1 i ii.ii I * I i t t i i ii ia I i li II li ISO 120 60 150 100 50 120 80 40 DISTANCE JOB.Calaveras Hills GEOLOGIST _D.S. SOUTHERN CALIFORNIA SOIL & TESTING, INC. • AIM OIBC1O, CALIFORNIA IOU NO. _802H42 TRAVERSE NO. _.^R-_V§ TRAVTRSE TYPE ELEVATION 375' SURFICIAL MAT'L. J.2Lky Residua 1_ Soil ROCK TYPE Metavolcanics I i •I I I a R i i i I i i f i i i i I i i I I i I 180 120 60 150 100 50 120 80 40 A 90 60 30 DISTANCE SOUTHERN CALIFORNIA SOIL & TESTING, INC. • ••D RIVIPDALB BTttetT • AIM DIBOO, CALIFORNIA • B1BO JOB Calaveras Hil Is inn NO. 8821142 TRAVERSE NO £~J1 TRAVERSE TYPE GEOLOGIST ELEVATION _2±^ SURFICIAL MAT'L. _B§l[dua_l_SoiJ_s ROCK TYPE Metavolcanlcs Mr. 01 E I f i I i I i I i 1 i ISO 120 60 150 100 50 120 80 40 i- DISTANCE )GH Calaveras Hills r.minr.iST D-s- SOUTHERN CALIFORNIA SOIL & TESTING, INC. • ••D mV/IMDALE ameer• AM onao, cALii=onrvJiA •n-ina ini,Nn 8821142 TRAVERSE NO. _il.^ TRAVERSE TYPE ELEVATION 435' SURFICIAL MAT'L.Residual Soils ROCK TYPE =!.: I i I J I i i i i 160 DISTANCE SOUTHERN CALIFORNIA BOIL & TESTING, INC. • ••a mv««oAt_e ameer BAN Dl«aa, CALIFORNIA •B1Ba GEOLOGIST ELEVATION 395 [_ jOU CaJayeras_HilMs |00 NO 882H42 TRAVERSE NO. _§^]? .. SURFICIAl. MAT'L. __B§§1duJl .Soils TRA\'ERSE TYPE ROCK TYPE Metavol cam c t j i I i t i i * i i i i § i i 180 120 60 150 100 50 120 80 40 DISTANCE SOUTHERN CALIFORNIA SOIL & TESTING, INC. mama RIVIODALE a-rnetr • AN DIBQO, CALIFORNIA OB1DD Calaveras HiJJjs JOB NO 8821142 TRAVERSE NO S.rJJL TRAVERSE TYPE GEOLOGIST ELEVATION . JR/RF 375' SURFICIAL MAT'L. _.MiJduaL_SoiJ_s ROCK TYPE ..Metavolcanic i t i t i i * i i i I i i i i i i i i I 180 120 60 150 100 50 120 80 40 90 60 30 30 60 90 40 80 120 DISTANCE SOUTHERN CALIFORNIA BOIL & TEBTINQ, INC. •••a oivtHOALt BfaeiT • AIM OIBOD, CALIFORNIA BIMBO TRAVERSE 1 50 60 100 120 150 180 Calaveras Hills ) 8821142 tSE NO. Iz20 SE TYPE 1 70 140 210 GEOLOGIST ELEVATION SURFICIAL A ROCK TYPE 80 9 160 18 240 2; J.H./D.S. 355' 1 " : ; 0 100 0 . 200 ?0 300 4AT'L Roc ky_ Residual Soils Metavolcanic i i.t i I a I i i !iiiitiliiiiiii 180 120 60 150 100 50 120 80 40 'iilliLJ 0,006 DISTANCE SOUTHERN CALIFORNIA BOIL & TESTING , INC. jnn Calaveras Hills JOB NO. 8821142 r: :• :. i: .:: u:; i. 70 80 90 140 160 180 210 240 270 GEOLOGIST P.S. ELEVATION 368.'. 100 200 300 • AIM OIBOa. CALIFORNIA ••1BQ TRAVERSE NO. JL2JLl_S-2iiL SURFICIAL MAT'L. Residual Soil/Rock Outcro JS TRAVERSE TYPE ROCK TYPE Granitic * a I i i * i i i i t I I i i i i i I i i i 180 DISTANCE SOUTHEPIM CALIFORNIA BOIL & TESTING, INC. mama OIVBODAUC BT«E«T • AN OIBOO, CALIFORIMIA BB1BD JOB Calayera s_HiU s GEOLOGIST JR/RF JOB NO. _8Q21142 ...._.. ELEVATION 410' TRAVERSE NO S-14. .. . ._._ .IIW.CIM MA:'L _ TRAVERSE TYPE ROCK TYPE _Wetavolcanic 180 120 60 -- 150 100 50 120 SO 40 5 P DISTANCE BOUTHEON CALIFORNIA BOIL A TESTING, INC. • ••a mvanoALB •TMBIT • AN DIBUa, CALIFORNIA • »1BO JOB Calaveras Hills r.FDinniST D.S. JOB NO. RRP114? ELEVATION 435' TRAVERSE NO. Sr_22_.& .Sr22R SURFICIAL MAT'L. Weathered Rock/Topspl TRAVERSE TYPE Hmibus_£^il5 ROCK TYPE Mix Gram' tic/Me to volcanic tit § i i i i i 1 I i i t i I i i i i i ISO 120 60 150 100 50 120 SO 40 DISTANCE JOB. BOUTHEPirj CALIFORNIA BOIL & TESTING, INC. • ••O HIV1HDAL* «TO««T• AN ai«aa, CALIFORNIA Calaveras Hills 8821142 GEOLOGIST ELEVATION 360] TRAVERSE NO. _Sl?3 J S: 23R__ SURFICIAL MAT'L. Residual Soils TRAVERSE TYPE_ ROCK TYPE Metavolcanic SCSST 14112 January 10, 1984 Page 8 SEISMIC SURVEY AND RIPPABILITY CHARACTERISTICS GENERAL: The results of our seismic survey and exploratory trenches indicate that blasting will be required to obtain proposed grades. In addition, isolated boulders and abundant shot-rock are anticipated within cut areas and will require special handling during grading operations. A summary of each seismic traverse is presented below and on Plate Number 12. Our interpretation is based on the rippability characteristics of granitic and metavolcanic rock as described in pages 8 through 10. Seismic Traverse No. S-l Geologic Unit: Granitic Rock Interpretation: 0-15' Rippable + 15' Nonrippable Related Trench: TQ-3 Seismic Traverse No. S-2 Geologic Unit: Granitic Rock Interpretation: 0-19' Rippable + 19' Nonrippable Related Trench: TQ-11 Seismic Traverse No. S-3 Geologic Unit: Granitic Rock Interpretation: 0-14' Rippable + 14' Nonrippable Seismic Traverse No. S-4 Geologic Unit: Interpretation: Related Trench: Granitic Rock 0-19' Rippable 19'-30' Rippable to Marginally Rippable + 30' Nonrippable TQ-12 SOUTHERN CALIFORNIA S 0 AND TEST N G .N C SCS&T 14112 January 10, 1984 Page 9 Seismic Traverse No. S-5 Geologic Unit: Metavolcanic and Associated Hypabyssal Rock Interpretation: 0-6' Rippable + 6' Nonrippable Seismic Traverse No. Geologic Unit: Interpretation: S-6 Metavolcanic and Associated Hypabyssal Rock 0-6' Rippable + 6' Nonrippable Seismic Traverse No. S-7 Geologic Unit: Metavolcanic and Associated Hypaoyssal Rock Interpretation: 0-6' Rippable + 6' Nonrippable Seismic Traverse No. S-8 Geologic Unit: Granitic Rock Interpretation: 0-9' Rippable + 9' Nonrippable Seismic Traverse No. S-9 Geologic Unit: Granitic Rock Interpretation: 0-10' Rippaole + 10' Nonrippable Seismic Traverse No. S-10 Geologic Unit: Granitic Rock Interpretation: 0-21' Rippable + 21' Nonrippable Related Trench: TQ-10 SOUTHERN CALIFORNIA SOIL AND TESTING.I N C SCS&T 14112 January 10, 1984 Page 10 Seismic Traverse No. S-ll Geologic Unit: Metavolcanic and Associated Hypabyssal Rock Interpretation: 0-8' Rippable T 8' Nonrippable Seismic Traverse No. S-12 Geologic Unit: Granitic Rock Interpretation: 0-7' Marginally Rippable + 7 ' Nonri ppable Seismic Traverse No. S-13 Geologic Unit: Granitic Rock Interpretation: 0-13' Rippable + 13' Nonrippable Seismic Traverse No. S-14 Geologic Unit: Metavolcanic and Associated Hypabyssal Rock Interpretation: 0-11' Rippable + 11' Nonrippable RIPPABiL "V iNDEX NO RIPPING SOFT MEDIUM HARD BLASTING •..-.•.--•;. *••**' *.• . } 1OOO 2O DO 3000 •4OOO y/s* / // / // / /, 5000 / // / / / / / / / y / / /\ / 6OOO ^A M 1ViL^A ' 'XA/ / / / / / / /4ljf\/A YY\AV ^/ s V / / / / / / / ^H/M7 A L/f A/\ Y \/\ A i/f Ai • i ' i • 70OO 8OOO 9OOO 1OOGO VELOCITY, FT./ SEC. RESULTS TRAVERSE NO. GEOPR a.Ul Q NOTE: THE ASOVE RESULTS ATTEMPT TO SHOW DEPTHS TO HORIZONS OF VARYING DENSITY IN DIFFERENT LOCATIONS OVER THE STUDY AREA. SEISMIC TRAVERSE NUMBERS ^ REFER TO LOCATIONS PiOTED ON ATTACHED PLANS. THE'RIPPABJLITY INDEX'IS A MODIFICATION OF CHARTS BY THE CATERPILLAR CO. AND ARTICLE IN 'ROADS AND STREETS' SEPT. 1967. /\ SOUTHERN CALIFORNIA J ^JbL^ SOIL & TESTING L.AB, INC. ^V i S aaaa RIV/EOOAI-E STREET ^^^r SAN oieaa, CAUIFOBMIA oaiea 1 SEISMIC RESULTS Calaveras Hills Carlsbad, California BY DBA JOB NO. 1411, DATE 1-11-83 Plate }:o. 64 RIPPABILITY NDEX NO RIPPING SOFT MEDIUM HARD BLASTING V ' I ' 10OO 2OOO 3OOO 4OOO 5000 5OOO 70OO 8OOO 9OOO 1OOOO VELOCITY, FT./SEC. RESULTS TRAVERSE NO. GEQPH, o.LJ Q S73-2 S73-A A S73-5 _L S73-6 a lb S73-8 S73-9 /\ JJ/J /i S73-lds73-liS73-l4s73-l: /i /i a I b S73-lc a J b I NOTE- THE ABOVE RESULTS ATTEMPT TO SHOW DEPTHS TO HORIZONS OF VARYING DENSITY INDIFFERENT LOCATIONS OVER THE STUDY AREA. SEISMIC TRAVERSE NUMBERS REFER TO LOCATIONS PiOTED ON ATTACHED PLANS. THE'RIPPABILITY INDEX'IS A MODIFICATION OF CHARTS BY THE CATERPILLAR CO. AND ARTICLE IN 'ROADS AND STREETS' SEPT. 1967. j<J ]4 ^^^ SOUTHERN CALIFORNIA TESTING ^pV LABORATORY, INC. <KB£^ 6280 RfVCRDALE STREETVi>r *AN OICOO, CALIFOfmiA 92120>^T 7i4-2«3-6I34 SEISMIC RESULTS Calaveras Kills Carlsbad, California •Y DBA DATE A-L4-73 JOB «0. 14H2 Plate N'o. 69 I I I I I I I