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HomeMy WebLinkAboutSDP 92-06E; SEASIDE ESTATES; GRADING REPORT LOTS 1-138; 1996-05-09• • • • • • • • • • • [I] PACIFIC SOILS ENGINEERING1 INC. 7715 CONVOY COURT, SAN DIEGO, CALIFORNIA 92111 TELEPHONE: (619) 560-1713, FAX: (619) 560-0380 . . SAMBI SEASIDE HEIGHTS %CDC 370 Ampola Avenue -Suite 209 Torrance, CA. 90501 May 9, 1996 Attention: Mr. Charles Mallon Work Order 400224GR CT-92-02 Subject: References: Gentlemen: Project Grading Report for Lots 1 thru 138, inclusive, Sambi Seaside Heights Project, in the City of Carlsbad, California See Appendix This report presents geotechnical data and testing results pertaining to the completion of mass grading operations for lots 1 through 138, inclusive, of the Sambi Seaside Heights project, located in the City of Carlsbad, California. Cut and fill grading operations were utilized to develop lots 1 through 138 and public street areas at the Sambi Seaside Heights project. Data developed during this phase of grading is summarized in the text of this report, on the enclosed 40-scale grading plans as prepared by O'Day Consultants (sheets 5, 6 and 7 of 23), Table I and Table II. CORPORATE HEADQUARTERS TEL. (714) 220-0770 FAX. (714) 220-9589 LOS ANGELES COUNTY TEL: (213) 325-7272 or 775-6771 FAX: (714) 220-9589 RIVERSIDE COUNTY TEL: (909) 676-8195 FAX: (909) 676-1879 SOUTH ORANGE COUNTY TEL: (714) 730-2122 FAX: (714) 730-5191 • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page2 Also presented herein are the foundation and slab design recommendations based upon field and laboratory testing of as-graded soil conditions. All cuts, fills and processing of original ground covered by this report have been com- pleted under Pacific Soils Engineering, lnc.'s (PSE's) testing and observation. Based upon the testing and observation, the work is considered to be in general compliance with the City of Carlsbad grading code criteria, the approved grading plans, and the preliminary soils reports (Pacific Soils Engineering, Inc., 1995 and 1989) . All slopes are considered surficially and grossly stable and will remain so under normal conditions. To reduce exposure to erosion, landscaping of all graded slopes should be accomplished as soon as possible. Drainage berms and swales should be established and maintained to aid in long term slope protection . PACIFIC SOILS ENGINEERING, INC, • • • • Work Order 400224GR May 9, 1996 Geologic Units Page 3 ENGINEERING GEOLOGY The geologic units encountered during the grading of lots 1 through 138 of Sambi Sea- side Heights include previously placed uncompacted artificial fill, topsoil, colluvium/allu- vium, terrace deposit and Santiago and Del Mar Formations. These geologic mapping • units follow those by Eisenberg (1985). The following is a brief description of these • • units. Their distribution is approximately shown on sheets 5, 6 and 7 of 23. Surveyed removal depths are shown on these grading plans . Artificial Fill -Uncompacted (No Map Symbol) Undocumented artificial fill occurred in several areas over the site. All uncompacted fill was completely removed to competent native materials prior to the placement of com- pacted fill. Thicknesses ranged from one-half (1/2) to five (5) feet. Topsoil (No Map Symbol) • A dark brown soil blanketed the site. The soil consisted of predominately clayey sand to sandy clay, and was one (1) to four (4) feet thick. Topsoils were removed prior to compacted fill placement. • Alluvium/Colluvium (No Map Symbol) Alluvium/colluvium and slopewash occupied the drainages onsite. Removal of these soils was accomplished prior to the placement of compacted fill. Removal depths var- • ied between three (3) to fifteen (15) feet based upon the survey information. This in- formation has been transferred to the enclosed sheet 5 through 7 of 23 . • PACIFIC SOILS ENG11NEERING, INC. • • • • • • Work Order 400224GR May 9, 1996 Terrace deposit (Map Symbol Qt) Page4 Marine terrace deposits consists of reddish brown, mottled, massive clayey sands. The unit is dense and slightly moist. In general, the upper two (2) to four (4) feet was high- ly weathered and it was removed prior to the placement of compacted fill. This terrace deposit has been identified by Eisenberg (1985) as the Magdalena marine terrace. Comparison of terrace elevations to work by Shakleton and Opdyke (1973) suggests the Magdalena terrace probably represents the stage 9 Pleistocene sea-level high stand deposit which is estimated to be about 650,000 years old. Scripps Formation (Map Symbol Ts) The Eocene Scripps Formation, mapped by Eisenberg (1985), is a light colored, medium-to fine-grained sandstone with interbeds of darker colored sandy siltstones and claystones. Typically the unit is moderately hard and damp. The upper one (1) to • four (4) feet of Scripps Formation was highly weathered and it was removed prior to the • • • • placement of compacted fill. Del Mar Formation (Map Symbol Td) The Eocene Del Mar Formation has been mapped in the project area by Eisenberg (1985). It consists of a light gray brown, fine-grained, micaceous sandstone and me- dium brown claystone. The unit is typically moderately hard and damp. The upper one (1) to four (4) feet of Del Mar Formation was highly weathered and it was removed prior to the placement of compacted fill. PACIFIC SOILS ENCIINEERINCI, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Structure Page 5 Bedding dips in the Scripps and Del Mar Formations were observed to range from 6 to 40 degrees. Dip directions are quite variable . During project grading, a northeast trending fault zone was observed to be present in the central portion of the project (sheet 7). Geologic mapping indicates that this is a wide fault zone consisting of numerous discontinuous shears. The principal shear is marked by the juxtaposition of Del Mar Formation against Scripps Formation. As part of PS E's evaluation of this fault zone, trenching operations were undertaken during grading. Two trenches were excavated, offsite, immediately north and south of the project boundaries (sheet 7) where upper soil horizons were present and not dis- turbed by project grading operations. The logs of these trenches are shown on the en- closed Plate 1 . Trench 1, located just north of the northern site boundary, was excavated across the faulted Del Mar/Scripps Formation contact. This stratigraphy follows mapping work by Eisenberg (1985). He has mapped this west dipping, northeast trending fault with nor- mal displacement. The sense of displacement across the principal fault was not dis- cernible in Trench 1 due to the lack of slickensides and/or correlable units. However, a large exposure temporarily created in the adjacent cut slope revealed synthetic-type faulting, east of the potential shear, suggesting extensional forces with normal faulting. If Del Mar Formation is normally faulted against Scripps Formation, then at this location Del Mar Formation must have interfingered with Scripps Formation because the Del PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page6 Mar is stratigraphically lower than Scripps. This suggests a limited amount of displace- ment. A component of a strike-slip displacement could also account for this Del Mar/Scripps juxtaposition . Trench 1 exposed multiple horizons of unfaulted, older colluvium/paleosols capping the principal shear and several secondary faults. Based upon the degree of soil structure development and oxidation, the oldest colluvium/paleosol units are judged to be early Holocene to late Pleistocene in age . Trench 2 is located just south of the southern site boundary (sheet 7). It was excavated across the projection of the principal shear trace and in a location which was suspect of faulting due to strong mottling in the stage 9 terrace deposit. This mottling was ob- served in exposures created during grading/removal operations. Logging of trench 2 revealed paleosols overlying a thick terrace deposit (Plate 1 ). Both units were ob- served to be not faulted. Based upon: 1) the above discussion; 2) lack of features on aerial photographs such as linear topography, closed depressions, deflected drainages, etc. which are indica- tive of active faulting; 3) lack of deflection in the Pleistocene beach ridges in the area, as observed during the analysis of aerial photographs and topographic maps; 4) re- view by Dr. Roy J. Shlemon of Trenches 1 and 2, the drafted logs (Plate 1) including soil profiles and field documentation, nearby onsite cut slopes, geomorphic setting and lineament analyses; and 5) review of pertinent geologic literature, the onsite faults at Sambi Seaside Heights are judged to be not active(> 11,000 years). Accordingly, these faults do not present a constraint to site development. PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Corrective Grading Page 7 Due to the presence of expansive claystone, the south-facing cut slope at the back of lots 127 through 135 was replaced with a stabilization fill (sheets 6 and 7). This stabi- lization fill was constructed as per the recommendations outlined in Pacific Soils Engi- neering, Inc. (1995). A 4-inch heel drain was provided. The surveyed location is shown on sheets 6 and 7. Subdrains Canyon subdrains were constructed at the locations and elevations indicated on the enclosed grading plans. A 4-inch fill-over-cut keyway heel drain was constructed on lots 29 through 31 (sheet 6). The surveyed location is shown on sheet 6. All drains were constructed as per the recommendations outlined in Pacific Soils Engineering, Inc. (1995). Conclusions From an engineering geologic viewpoint, lots 1 through 138 of Sambi Seaside Heights are suitable for their intended residential use . PACIFIC SOILS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 8 A . 1. 2. 3 . SOILS ENGINEERING PROJECT GRADING Compaction test results are presented in Table I and the approximate locations of tests are shown on the 40-scale grading plans prepared by O'Day Consultants (sheets 5 through 7 of 23). Cleanouts to competent, in-place terrace deposit, Santiago Formation and Del Mar Formation were accomplished in all fill areas during this phase of grading . Prior to placement of compacted fill, the exposed surface was scarified, mois- ture conditioned to a minimum of optimum moisture or slightly above, and com- pacted in-place to a minimum of 90 of the laboratory maximum density (ASTM:D 1557-91 ). Fill consisting of the soil types indicated in Table I was placed in thin lifts, mois- ture conditioned to optimum or slightly above, and compacted in-place to a mini- mum of 90 percent of the laboratory standard (ASTM: D 1557-91 ). This was accomplished utilizing self-propelled, rubber-tired and sheepsfoot compactors along with heavy earth moving equipment. Each succeeding fill lift was treated in a like manner . PACIFIC SDILS ENCIINEERINGI, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 9 4 . 5 . Fill materials placed on slope gradients steeper than 5-horizontal to 1-vertical were keyed and benched into the terrace deposit, Santiago Formation or Del Mar Formation. The upper soils were stripped and benched out on the shallow slopes in such a manner that all compacted fill is in contact with intact terrace deposit, Santiago Formation or Del Mar Formation. During mass grading removals, excavations, cleanouts and processing in pre- paring fill areas were observed by this firm's representative prior to placement of fill. Based on those observations all fills are deemed to be supported by in- place terrace deposit, Santiago Formation or Del Mar Formation 6. Compaction tests were taken for each one (1) and two (2) feet of fill placed. The approximate maximum vertical depth of fill placed during grading of the subject lots is on the order of 37 feet beneath lot 47. The approximate maximum vertical depth of fill on individual lots is summarized in Table II. 7. Lots 7, 11 through 21, 25, 26, 34, 35, 80, 81, 88, 89, 102, 103, 119, 120 and 123 through 131 were cut/fill transition lots on which the cut portion of the lot was overexcavated a minimum of 36 inches and replaced with compacted fill. Lots 1 through 6, 8 through 10, 31 through 33, 132 through 138 were originally cut lots which were overexcavated a minimum of 36 inches and replaced with compacted fill due to unsuitable soils exposed at grade . PACIFIC SOILS ENCIINEEAINGI, INC, • • • • • • Work Order 400224GR May 9, 1996 Page 10 8 . 9. 10. The fill slopes were built approximately on-grade and backrolled at approximate- ly four (4) foot vertical increments with a sheepsfoot compactor. Upon grading completion, the slopes were trimmed to grade, and further compacted by track walking . Finish slope surfaces have been probed and/or tested and the slopes are con- sidered to satisfy the project requirements, and grading codes of the City of Carlsbad. The materials utilized to construct the fill slopes are granular in na- ture and subject to potential erosion. As such, landscaping and irrigation man- agement are important elements in the long term performance of slopes and should be established and maintained as soon as possible . Cut slopes were examined by an engineering geologist and are considered grossly and surficially stable . B. PROPOSED DEVELOPMENT • The subject site is programmed for residential use. One-and two-story, wood frame, single family dwelling units are proposed. Slab-on-grade conventional or post-tensioned foundation systems are to be utilized for support of the • structures . • • PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 11 C . DESIGN RECOMMENDATIONS Materials encountered in cut and utilized for compacted fill ranged from very low to very high in expansion potential. An evaluation of the post-grading soil condi- tions was conducted to classify materials per ASTM:D 442 and to determine the expansion index as per U.B.C. Standard No. 29-2. Results of that evaluation and the laboratory test data are presented in the following Table A TABLE A Expansion Expansion Lot Hydrometer Analysis Index Potential No. (%Sand, %Silt, %Clay) (UBC Table 29-C) 1-3 46 33 21 87 Medium 4-6 53 34 13 85 Medium 7,8 62 25 13 32 Low 9-11 57 34 9 68 Medium 12, 13 63 26 11 37 Low 14-17 41 57 2 135 Very High 18-21 45 36 19 109 High 22-24 71 23 6 22 Low 25-28 59 28 13 70 Medium 29,30 64 28 8 54 Medium 31-34 50 30 20 104 High 35-39 44 32 24 140 Very High 40,41 51 27 22 88 Medium 42,43 45 36 19 122 High 44,45 67 17 16 44 Low 46,47 59 22 19 72 Medium 48-52 38 39 23 107 High 53-57 42 37 21 101 High 58-61 32 34 34 138 Very High 62-64 67 15 18 17 Very Low PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Lot No . 65-67 68 69,70 71-75 76-79 80-82 83-85 86-88 89,90 91-93 94-97 98-101 102-104 105-108 109-112 113,114 115-117 118,119 120 121 122-124 125-127 128-130 131-134 135 136-138 TABLE A cont. Hydrometer Analysis (%Sand, %Silt. %Cla:t} 53 25 22 36 36 28 72 28 0 55 26 19 40 34 26 65 26 9 61 28 11 41 33 26 51 43 6 74 19 7 75 18 7 71 22 7 67 26 7 63 26 11 65 24 11 68 21 11 63 22 15 59 26 15 71 20 9 56 28 16 73 20 7 78 17 5 59 32 9 80 14 6 35 38 27 Page 12 Expansion Expansion Index Potential (UBC Table 29-C} 66 Medium 107 High 64 Medium 103 High 126 High 71 Medium 38 Low 101 High 81 Medium 23 Low 20 Very Low 36 Low 47 Low 60 Medium 63 Medium 54 Medium 66 Medium 71 Medium 35 Low 81 Medium 40 Low 14 Very Low 82 Medium 56 Medium 7 Very Low 122 High Based on the data presented in Table A, the following foundation design criteria is presented . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 13 1 . 2. Foundations for structures may be designed based upon the following values. Allowable Bearing: 1900 lbs./sq. ft. Lateral Bearing: 200 lbs./sq.ft. at a depth of 12 inches plus 150 lbs./ sq. ft. for each additional 12 inches embedment to a maximum of 1900 lbs./sq.ft. Sliding Coefficient: 0.35 Settlement: Total = 3/4 inch Differential = 3/8 inch in 20 feet Conventional Footing and Slab-On-Grade Design VERY LOW TO LOW EXPANSION POTENTIAL -Lots 7,8, 12, 13,22-24,44,45, 62-64,83-85,91-104, 120, 122-124, 125-127, 135 a) b) c) d) Footing Depth (Minimum): Exterior One-Story: 12 inches below lowest adjacent finished grade. Two-Story: 18 inches below lowest adjacent finished grade. Interior One-& Two-Story: 12 inches below lowest adjacent finished grade. Footing Reinforcement: All continuous; two No.4 rebars, one on top, one on bottom . Slab Reinforcement: Living Areas 6"x 6", No.1 O by No.10 welded wire mesh OR equivalent. Slab Thickness (Minimum): Four (4) inches. PACIFIC SCHLS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 14 3. e) f) Under-Slab Requirements: Living Areas A 10-mil polyvinyl membrane (minimum) should be placed below all slabs- on-grade within living areas. This membrane should be covered with a minimum of two (2) inches of clean sand to protect it and to aid in curing the concrete. Presaturation Requirements: The slab subgrade soil should be moisture conditioned to 110 percent of optimum moisture to a depth of 12 inches immediately prior to placing concrete . Conventional Footing and Slab-On-Grade Design MEDIUM EXPANSION POTENTIAL -Lots 1-6,9-11,25-30,40,41,46,47,65-67, 69,70,80-82,89,90, 105-119, 121.128-134 a) b) c) Footing Depth (Minimum): Exterior One-Story: 18 inches below lowest adjacent finished grade. Two-Story: 18 inches below lowest adjacent finished grade. Interior One-& Two-Story: 12 inches below lowest adjacent finished grade . Footing Reinforcement: All continuous; four No.4 rebars, two on top, two on bottom OR two No. 5 rebars, one on top, one on bottom . Slab Reinforcement: Living Areas 6"x 6", No.6 by No.6 welded wire mesh OR equivalent. d) Slab Thickness (Minimum): Four (4) inches . PACIFIC SOILS ENGIINEERINCI, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 15 4. e) f) Under-Slab Requirements: Living Areas A 10-mil polyvinyl membrane (minimum) should be placed below all slabs- on-grade within living areas. This membrane should be covered with a minimum of two (2) inches of clean sand to protect it and to aid in curing of the concrete. This membrane should also be underlain with four (4) in- ches of clean sand. Presaturation Requirements: The slab subgrade soil should be moisture conditioned to 120 percent of optimum moisture to a depth of 12 inches, 24 hours prior to pouring concrete . Conventional Footing and Slab-On-Grade Design HIGH EXPANSION POTENTIAL -Lots 18-2t31-34,42,43,48-57,68,71-79, 86-88, 136-138 a) b) Footing Depth (Minimum): Exterior One-Story: 24 inches below lowest adjacent finished grade. Two-Story: 24 inches below lowest adjacent finished grade . Interior One-& Two-Story: 18 inches below lowest adjacent finished grade. Footing Reinforcement: All continuous; four No.4 rebars, two on top, two on bottom OR two No. 5 rebars, one on top, one on bottom. c) Slab Reinforcement: Living Areas 6"x 6", No.6 by No.6 welded wire mesh OR equivalent. PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 16 5 . d) e) f) Slab Thickness (Minimum): Four (4) inches . Under-Slab Requirements: Living Areas A 10-mil polyvinyl membrane (minimum) should be placed below all slabs- on-grade within living areas. This membrane should be covered with a minimum of two (2) inches of clean sand to protect it and to aid in curing of the concrete. This membrane should also be underlain with four ( 4) in- ches of clean sand . Presaturation Requirements The slab subgrade soil should be moisture conditioned to 120 percent of optimum moisture to a depth of 18 inches, at least 48 hours prior to pour- ing concrete. Conventional Footing and Slab-On-Grade Design VERY HIGH EXPANSION POTENTIAL -Lots 14-17,35-39,58-61 a) Footing Depth (Minimum): Exterior & Interior One-& Two-Story: 24 inches below lowest adjacent finished grade . b) Footing Reinforcement: c) d) All continuous; four No.4 rebars, two on top, two on bottom OR two No. 5 rebars, one on top, one on bottom . Slab Reinforcement: Living Areas No. 3 rebars placed 12 inches on center each way . Slab Thickness (Minimum): Five (5) inches. PACIFIC BOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 17 6. 7 . e) f) Under-Slab Requirements: Living Areas A 10-mil polyvinyl membrane (minimum) should be placed below all slabs- on-grade within living areas. This membrane should be covered with a minimum of two (2) inches of clean sand to protect it and to aid in curing of the concrete. This membrane should also be underlain with four (4) in- ches of clean sand. Presaturation Requirements: The slab subgrade soil should be moisture cqnditioned to 120 percent of optimum moisture to a depth of 18 inches, at least 48 hours prior to pour- ing concrete . Footings shall have a minimum width of 12 inches when supporting one floor and 15 inches for support of two floors. If exterior footings adjacent to drainage swales are to exist within three (3) feet (horizontally) of the swale, the footing should be embedded sufficiently to assure minimum embedment below the swale bottom is maintained. Footings adjacent to slopes should be embedded sufficiently that at least five (5) feet is provided horizontally from the bottom edge of footings to the face of the slope. Garages (Conventional Foundations) a) All garage slabs shall have a minimum thickness of four (4) inches for very low, medium and high expansive potential lots and five (5) inches for very high expansive potential lots. These slabs should contain control joints at approximately ten (10) foot spacing . PACIFIC SOILS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 18 8 . b) c) d) Footing embedment, reinforcement and slab subgrade moisture shall be as recommended for the structures in paragraphs C-2, C-3, C-4 and C-5. A grade beam reinforced continuously with the garage footings should be constructed across all garage entrances, tying together the ends of the garage footings. This grade beam should be embedded at the same depth as the adjacent perimeter footings. A thickened slab should be pro- vided at the garage entrance above the grade beam. Minimum dimen- sions of the thickened slab should be six (6) inches wide by six (6) inches thick and need not be specifically reinforced. The garage slab should have a positive separation from the stem walls. The grade beam/thick- ened slab edge should not be constructed monolithically, but rather should consist of a clean, cold joint. Presaturation requirements should be the same as presented in sections C-1-f through C-5 -f. Post-Tensioned Foundations Post-tensioned foundation systems should be designed based upon the following: a) VERY LOW TO LOW EXPANSION POTENTIAL -Lots 7 .8, 12.13,22-24,44,45, 62-64,83-85,91-104, 120, 122-124, 125-127, 135 Loading Center Lift Edge Lift Em (feet) 5.0 2.2 PACIFIC SOILS ENGINEERING, INC. Ym (inches) 1.14 0.20 • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 19 9. b) MEDIUM EXPANSION POTENTIAL-Lots 1-6,9-11,25-30.40.41.46.47,65-67, 69,70,80-82,89,90, 105-119, 121, 128-134 Loading Em (feet) Ym (inches) Center Lift 5.2 1.39 Edge Lift 2.4 0.21 c) HIGH EXPANSION POTENTIAL -Lots 18-21, 31-34, 42,43,48-57,68, 71-79,86-88, 136-138 Loading Em (feet) Ym (inches) Center Lift 5.6 1.88 Edge Lift 2.7 0.24 d) VERY HIGH EXPANSION POTENTIAL -Lots 14-17,35-39,58-61 Loading Em (feet) Ym (inches) Center Lift 6.0 2.37 Edge Lift 2.9 0.25 e) Allowable Bearing: 1900 lbs./ft. 2 f) Settlement: Total= 3/4 inch Differential = 3/8 inch 20 feet Post-Tensioned Foundation Under-Slab -Living Areas a) VERY LOW TO LOW EXPANSIVE LOTS A 10-mil polyvinyl membrane (minimum) should be placed below all slabs- on-grade within living areas. This membrane should be covered with a minimum of two (2) inches of clean sand to protect it and to aid in curing PACIFIC SOILS ENGINEERING, INC, • • • • • • • Work Order 400224GR May 9, 1996 Page 20 b) c) of the concrete. The subgrade soils should be moisture conditioned to 11 O percent of optimum moisture to a depth of 12 inches immediately prior to placing concrete . MEDIUM EXPANSIVE LOTS The same criteria should be utilized as in section 9 a), except the 10-mil polyvinyl member should be underlain with four ( 4) inches of clean sand. The subgrade soils should be moisture conditioned to 120 percent of opti- mum moisture to a depth of 12 inches at least 24 hours prior to placing concrete . HIGH TO VERY HIGH EXPANSIVE LOTS The same criteria outlined in section 9.a) except the subgrade soils should be moisture conditioned to 120 percent of optimum moisture to a depth of 18 inches at least 48 hours prior to placing concrete. 10. The footing width, depth, as well as the structural slabs-on-grade thickness • shall be as specified by the structural engineer based upon the soil parameters provided by PSE and the requirements of the UBC. • • • 11. Retaining Wall Design Retaining walls or other structural walls should be designed based on the following: PACIFIC SOILS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Level Backfill Ka = 0.27 ~ = 3.69 K0 = 0.43 Page 21 Sloping Backfill 2: 1 Ka = 0.39 ~(+) = 10.8 ~(-) = 1.39 K0 = 0.77 Equivalent fluid pressures can be calculated using a soil unit weight of y = 125 lbs./sq.ft. Foundations for retaining walls may be designed in accordance with recom- mendations of paragraph C-1 . All footing excavations for retaining walls should be inspected by the project soil engineer or his representative prior to concrete placement. Drainage should be provided behind all retaining walls such that hydrostatic pressure is relieved. It is recommended that the backfill consist of a granular free draining soil (SE ~30) to within 18 inches of finish grade . All backfill should be compacted to a minimum of 90 percent of the laboratory maximum density (per ASTM:D 1557-91), at or slightly above optimum moisture . PACIFIC SCHLS ENCIINEERINCI, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 22 12. Exterior Slabs and Walkways a) The subgrade below garage slabs, sidewalks, driveways, patios, etc., should be moisture conditioned to a minimum of 120 percent of optimum moisture prior to concrete placement. b) c) Weakened plane joints should be installed on walkways at approximately eight (8) to ten (10) foot intervals. Other exterior slabs should be de- signed to withstand shrinkage of concrete . Since expansive soils are present onsite, the designer of the hardscape/ flatwork should take into consideration the expansive soil subgrade char- acteristics with respect to the proposed designs. 13. Seismic Design Seismic design should be based upon current and applicable building code requirements. D. SLOPE STABILITY AND MAINTENANCE Although the design and construction of slopes during mass grading is planned to create slopes which possess both stability against rotational failure and stabil- ity against surficial slumping and "pop-outs", certain factors are beyond the con- trol of the project soil engineer and geologist. These include the following . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 23 1 . 2. 3 . Onsite Drainage No water should be allowed to flow over the slopes. No alteration of pad gradi- ents should be allowed which will prevent pad and roof run-off from being expe- diently directed to approved disposal areas. Positive drainage away from structures shall be provided and maintained. Planting and Irrigation It is strongly recommended that slope planting consist of ground cover, shrubs and trees which possess deep, dense rooted structures and which require mini- mum irrigation. It should be the responsibility of the landscape architect to pro- vide such plants initially and the owner to maintain such planting. Alteration of such planting scheme is at the owner's risk. The owner is responsible for proper irrigation and for maintenance and repair of properly installed irrigation systems. Leaks should be fixed immediately. Sprinklers should be adjusted to provide maximum uniform coverage with a mini- mum of water useages. Overwatering with consequent wasteful run-off and seri- ous ground saturation must be avoided. Burrowing Animals Owners should implement a program for the elimination of burrowing animals in slope areas. This should be an on-going program in order to protect slope stability . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 24 E. OTHER DESIGN AND CONSTRUCTION CONSIDERATIONS 1. Positive drainage away from structures should be provided and maintained . 2. 3. Utility trench backfill shall be accomplished in accordance with the prevailing cri- teria of the City of Carlsbad . Chemical/resistivity testing indicates that the onsite soils possess low sulfate concentrations and low resistivity (see Plate A). The use of sulfate resistant concrete is not anticipated. However, the low resistivity soils may be aggressive to buried metal. Accordingly, it is recommended that a corrosion engineer should be consulted . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Page 25 This report presents information and data relative to the mass grading and place- ment of compacted fill at the subject site. A representative of this firm conducted periodic tests and observations during the progress of the construction in an ef- fort to determine whether compliance with the project drawings, specifications and Building Code were being obtained. The presence of our personnel during the work process did not involve any direct supervision of the contractor. Tech- nical advice and/or suggestions were provided to the owner and/or his desig- nated representative based upon the results of the tests and observations. Completed work under the purview of the report is considered suitable for the in- tended use. Conditions of the reference reports remain applicable unless specifi- cally superseded herein . Respectively submitted, PACIFIC SOILS NEERING, I al Engineer Reviewed by: By:~.,,c-~___,lj,;;__;:_;___,,pi:;.-A--- DAVID A. MURPH Engineering Geologist Dist (8) Addressee JAC/DAM/ JAH: kr/GR02 PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 APPENDIX REFERENCES Anderson, J. G., Rockwell, T. K., and Agnew, D. C., 1989, Past and possible future earthquakes of significance to the San Diego region: Earthquake Spectra, p. 299-335 . Eisenberg, L. I., 1985, Pleistocene Faults and Marine Terraces, Northern San Diego County, in Abbott, P. L. (ed.), On the Manner of Deposition of the Eocene Strata in Northern San Diego County: San Diego Association of Geologists, pp. 87-91 . Jennings, C. W., 1994a, An Explanatory Text to Accompany the Fault Activity Map of California and Adjacent Areas: California Division of Mines and Geology, 92 p. Jennings, C. W., 1994b, Fault Activity Map of California and Adjacent Areas, Map No. 6, Scale 1 :750,000: California Division of Mines and Geology . Pacific Soils Engineering, Inc., 1995, Grading Plan Review, Sambi Seaside Heights, TC-92-02, Portion of Alga Road and A Portion of Hidden Valley Road, City of Carlsbad, CA, for Sambi Seaside Heights, c/o CDC, dated May 17, 1995 (Work Order 400224GP) . Pacific Soils Engineering, Inc., 1989, Preliminary Geotechnical Investigation, Sambi, a Portion of the Southeast 1/4 of Section 21, Township 12 South, Range 4 West, City of Carlsbad, CA, for Sunbelt Development Company, dated February 6, 1989 (Work Order 400224) . Rockwell, T. K., and others, 1989, The seismic hazard of San Diego revised: New evi- dence for magnitude 6+ Holocene earthquake on the Rose Canyon fault zone in Roquemore, G. (ed.) proceeding: Workshop of "The seismic risk in the San Diego area:, special focus on the Rose Canyon fault system, pp. 71-79 . Shackleton, N. J., and Opdyke, N. D., 1973, Oxygen Isotope and Paleomagnetic Stra- tigraphy of Eguatorial Pacific Cove V28-238: Oxygen Temperatures and Ice Vol- ume on a 105 and 106 year scale: Quaternary Research 3, p. 239-55 . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 APPENDIX REFERENCES cont. Weber, F. H., 1982, Recent Slope Failures, Ancient Landslides and Related Geology of the North-Central Coastal Area, San Diego County, CA.: California Division of Mines and Geology, Open File Report 82-12 LA, 77 p . Wesnousky, S. G., 1986, Earthquakes, Quaternary faults and seismic hazard in Califor- nia: Journal of Geophysical research, vol. 9, no. B12, pp. 12,587-12,631 . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 SOIL TYPE TABLE I Laboratory Maximum Density per ASTM:D 1557-91 (All Soil Types) . Optimum Moisture Soil T}'.'.Qe and Classification (%) A-Yellow Brown Clayey Sand 10.1 8 -Light Brown Clayey Sand 8.9 C -Tan Clayey Sand 11.0 D -Brown Silty Sand 10.9 F -Dark Brown Clayey Silt 13.0 H -Gray Brown Clayey Sand 10.1 I -Light Brown Sand 10.2 J -Gray Olive Clayey Silt with Gravel 17.9 K -Dark Brown Lean Clay 12.7 L -Light Brown Silty Sand 13.0 M -Olive Green Silty Sand 14.1 LEGEND Non-Designated Test -Test in compacted fill. Test Location -Indicated by lot number, or by street and street stationing. Elevation -Approximate mean sea level elevation (feet). S -Indicates test taken on finished slope face . PACIFIC SOILS ENGINEERING, INC. Maximum Dry Density (lbs/cu.ft.) 127.1 122.9 124.2 125.0 119.0 123.8 125.0 109.8 120.3 115.9 114.2 • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TYPE TABLE I cont. All tests by Campbell Pacific Nuclear Test Gauge (per ASTM:D 2922-91 and 3017 -88), unless otherwise noted by: SC -Indicates test by Sand Cone Method (per ASTM:D 1556-90) . PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 10/17/95 101 Lot 51 102 Lot 53 103 Lot 55 104 Lot 52 105 Lot 54 10/18/95 106 Lot 51 107 Lot 53 108 Lot 55 109 Lot 52 110 Lot 54 111 Lot 51 112 Lot 53 113 Lot 55 114 Lot 52 115 Lot 54 116 Lot 51 119 Lot 48 121 Lot 48 122 Lot 49 10/19/95 123 Lot 48 124 Lot 50 125 Lot 48 126 Lot 49 127 Lot 62 128 Lot 64 129 Lot 66 130 Lot 67 131 Lot 61 132 Lot 63 133 Lot 65 134 Lot 67 10/20/95 135 Lot 68 136 Lot.48 137 Lot 49 TABLE I ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 198.0 14.2 114.5 90 A 196.0 12.4 114.9 90 A 199.0 13.0 115.3 91 A SC 200.0 12.3 116.2 91 B 201.0 14.1 115.7 90 B 201.0 12.6 117.3 92 B 200.0 11.2 116.1 91 A 202.0 13.8 114.1 92 C SC 203.0 13.3 112.2 90 C 203.9 12.8 112.5 91 C 205.0 10.9 113.1 91 C 203.0 12.7 112.9 91 C 204.0 13.2 116.9 92 A SC 206.0 10.2 115.0 93 C SC 205.0 10.6 115.5 91 A 207.0 10.3 114.6 90 A 173.0 12.3 114.5 92 C 175.0 13.5 113.8 91 D 180.0 13.2 112.8 90 D SC 178.0 12.1 113.8 92 C 187.0 10.7 112.6 91 C 182.0 13.4 113.7 91 D SC 184.0 10.1 114.8 90 A SC 203.0 10.7 114.9 92 D 203.0 12.6 112.8 91 C 198.0 10.5 115.1 92 D 196.0 11.2 115.2 91 A 205.0 11.6 116.1 93 D 205.0 12.3 113.8 91 D 205.0 10.9 114.3 91 D 200.0 10.5 115.0 92 D SC 203.0 11.6 116.1 93 D 185.0 12.8 115.5 92 D SC 187.0 12.6 114.3 91 D SC PACIFIC SOILS ENCIINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST ELEV. DATE NO. LOCATION (FT.) 10/20/95 cont. Anthurium Drive 138 Sta. 28+80 200.0 139 Sta. 30+89 202.0 10/25/95 164 Lot 48 187.0 165 Lot 50 190.0 166 Lot 49 189.0 11/7/95 307 Lot 121 164.0 Cherry Blossom Road 308 Sta. 28+18 166.0 11/8/95 310 Lot 121 168.0 311 Lot 57 167.0 11/9/95 330 Lot 121 170.0 331 Lot 121 172.0 332 Lot 121 174.0 333 Lot 121 176.0 334 Lot 121 178.0 335 Lot 57 180.0 336 Lot 121 180.0 337 Lot 121 182.0 Cherry Blossom Road 338 Sta. 26+62 184.0 339 Lot 57 186.0 340 Lot 121 186.0 341 Lot 121 188.0 342 Lot 122 188.0 343 Lot 57 188.0 344 Lot 121 190.0 11/10/95 345 Lot 58 180.0 346 Lot 58 183.0 347 Lot 57 190.0 348 Lot 58 186.0 T A B L E I cont. MOISTURE CONTENT DRY DENSITY % (FIELD) (LBS.ICU.FT.) 11.2 114.7 11.7 115.1 11.9 112.7 12.8 113.9 13.1 114.5 12.6 113.6 12.2 112.8 12.7 113.0 12.9 114.1 12.6 112.6 11.9 114.2 11.7 113.8 12.2 115.1 13.1 116.2 12.0 113.6 13.2 112.5 11.8 114.1 12.3 113.7 18.6 105.7 18.2 103.9 19.9 104.6 15.8 116.2 13.2 115.6 19.5 102.8 16.2 112.8 13.9 114.6 15.0 111.1 14.1 113.2 PACIFIC SOILS ENCIINEERING1 INC, RELATIVE SOIL TEST %COMP TYPE TYPE 92 D 92 D 90 D 91 D 92 D 91 90 90 91 90 I 91 I 91 I 92 I 93 I 91 I 91 H 92 H 92 H 96 J 95 J 95 J 94 H SC 93 H 94 J 95 F 93 H 93 F 91 H • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION ELEV. (FT.) 11/10/95 cont. Cherry Blossom Road 349 Sta. 27+39 190.0 350 Lot 121 192.0 351 Lot 57 192.0 352 Lot 58 192.0 353 Lot 60 192.0 354 Lot 122 192.0 355 Lot 59 194.0 356 Lot 56 194.0 357 Lot 79 194.0 358 Lot 58 196.0 359 Lot 121 194.0 360 Lot 61 193.0 361 Lot 60 195.0 362 Lot 57 196.0 363 Lot 122 194.0 364 Lot 123 196.0 11/13/95 365 Lot 79 196.0 366 Lot 77 198.0 367 Lot 59 198.0 368 Lot 61 196.0 369 Lot 78 200.0 370 Lot 76 200.0 371 Lot 77 202.0 372 Lot 58 198.0 373 Lot 60 198.0 374 Lot 79 198.0 375 Lot 76 204.0 376 Lot 121 196.0 377 Lot 123 198.0 378 Lot 122 198.0 379 Lot 50 193.0 380 Lot 53 205.0 381 Lot 49 192.0 382 Lot 56 197.0 383 Lot 52 208.0 384 Lot 124 204.0 T A B L E I cont. MOISTURE CONTENT DRY DENSITY % (FIELD) (LBS.ICU.FT.) 18.8 102.6 16.0 100.8 19.7 103.2 18.2 101.1 18.7 112.7 16.1 105.3 18.5 103.6 14.8 109.8 15.1 108.1 19.1 100.7 18.8 103.8 20.5 103.5 19.2 101.2 15.0 108.8 14.7 107.9 20.2 100.3 19.3 100.2 19.8 102.1 20.6 99.7 18.9 101.5 17.0 109.6 16.3 108.8 20.7 104.2 16.0 110.5 17.3 111.5 22.2 100.6 19.8 99.4 15.5 110.8 21.5 103.0 20.3 101.8 10.8 117.2 10.5 115.9 12.8 118.4 11.7 116.8 13.2 114.7 20.6 102.2 PACIFIC SOILS ENGIINEERINCI, INC. RELATIVE SOIL TEST %COMP TYPE TYPE 93 J 92 J 94 J 92 J 95 F 96 J 94 J SC 92 F 91 F 92 J 95 J 94 J 92 J 91 F 91 F SC 91 J 91 J 93 J 91 J 92 J 91 K 90 K 95 J 92 K 93 K 92 J 91 J 92 K 94 J 93 J 92 B 91 B 93 A 91 B 92 D 93 J • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 11/14/95 385 Lot 80 386 Lot 83 387 Lot 85 388 Lot 87 389 Lot 72 390 Lot 74 391 Lot 77 392 Lot 79 393 Lot 59 394 Lot 78 395 Lot 73 396 Lot 71 397 Lot 66 398 Lot 62 399 Lot 55 400 Lot 56 401 Lot 80 402 Lot 82 403 Lot 84 404 Lot 86 11/15/95 405 Lot 81 406 Lot 83 407 Lot 85 408 Lot 87 409 Lot 80 410 Lot 88 411 Lot 70 412 Lot 72 413 Lot 75 414 Lot 58 415 Lot 79 416 Lot 76 417 Lot 78 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 208.0 13.1 117.5 95 C 213.0 18.4 109.9 91 K 218.0 20.3 100.2 91 J 218.0 21.6 102.3 93 J 206.0 19.7 108.7 90 K 207.0 20.1 100.0 91 J 206.0 21.3 99.4 91 J 202.0 17.8 110.7 92 K 200.0 16.9 112.1 93 K 204.0 21.2 103.0 94 J 208.0 19.7 100.5 92 J 208.0 20.5 101.8 93 J 202.0 16.5 108.3 90 K 206.0 16.4 109.7 91 K 206.0 16.5 109.8 91 K 200.0 21.2 102.3 93 J 212.0 12.8 114.3 91 D 216.0 11.9 113.1 90 D 216.0 13.2 115.0 92 D 220.0 12.6 112.9 90 D 220.0 20.6 103.2 94 J 218.0 22.7 99.6 91 J 220.0 20.1 100.2 91 J 220.0 17.6 110.7 92 K SC 216.0 16.4 109.3 91 K SC 221.0 20.1 102.3 93 J 210.0 17.4 110.6 92 K 210.0 20.7 103.2 94 J 208.0 21.5 102.0 93 J 200.0 20.4 99.8 91 J 206.0 14.5 108.0 93 L 210.0 15.4 109.2 94 L 208.0 14.7 108.3 93 L SC PACIFIC SOILS ENGIINEERINGI, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 11 /15/95 cont. 418 Lot 74 419 Lot 77 420 Lot 75 421 Lot 94 422 Lot 96 423 Lot 98 424 Lot 100 11/16/95 425 Lot 71 426 Lot 73 427 Lot 79 428 Lot 78 429 Lot 63 430 Lot 67 431 Lot 64 432 Lot 65 433 Lot 47 434 Lot 45 435 Lot 43 436 Lot 90 437 Lot 91 438 Lot 46 439 Lot 44 440 Lot 42 441 Lot 93 442 Lot 95 443 Lot 97 444 Lot 99 11/17/95 445 Lot 69 446 Lot 72 447 Lot 70 448 Lot 74 449 Lot 77 450 Lot 76 T A B L E I cont. ELEV. MOISTURE CONTENT ORY DENSITY RELATIVE SOIL TEST (FT.) %(FIELD) (LBS.ICU.FT.) %COMP TYPE TYPE 210.0 15.2 109.0 94 L 210.0 15.6 108.8 94 L 212.0 14.9 109.6 95 L 226.0 12.5 113.1 90 D 226.0 12.8 112.9 90 D 222.0 19.8 103.8 95 J SC 226.0 14.8 109.3 91 K 212.0 14.8 109.8 95 L 212.0 15.3 108.0 93 L 210.0 15.7 109.9 91 K 212.0 16.1 111.2 92 K 207.0 13.2 114.1 91 D 204.0 19.1 100.7 92 J 206.0 20.2 100.1 91 J 207.0 14.5 113.8 91 D 185.0 15.9 108.2 91 F 195.0 13.2 113.6 91 D SC 200.0 12.8 112.7 90 D SC 214.0 15.7 106.7 92 L 226.0 16.2 106.5 92 L 192.0 15.1 107.8 93 L 197.0 15.5 105.3 91 L 204.0 14.9 106.4 92 L 228.0 15.3 109.9 95 L 228.0 13.0 112.9 90 D 225.0 13.7 112.6 90 D 225.0 15.5 109.2 91 K 208.0 19.7 104.9 96 J 214.0 19.3 102.5 93 J 214.0 20.2 101.3 92 J 214.0 15.4 106.0 91 L 214.0 15.9 108.8 90 K 215.0 19.7 102.7 94 J PACIFIC S01LB ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 11 /17 /96 cont. 451 Lot 82 452 Lot 84 453 Lot 86 454 Lot 88 455 Lot 80 456 Lot 89 457 Lot 69 458 Lot 71 459 Lot 73 460 Lot 75 461 Lot 68 462 Lot 66 463 Lot 65 464 Lot 60 11/20/95 465 Lot 59 466 Lot 60 467 Lot 121 468 Lot 123 469 Lot 125 470 Lot 123 471 Lot 122 472 Lot 124 480 Lot 122 481 Lot 124 482 Lot 126 483 Lot 123 487 Lot 79 488 Lot 125 11/21/95 489 Lot 78 490 Lot 76 491 Lot 74 492 Lot 72 497 Lot 47 498 Lot 44 499 Lot 41 500 Lot 39 505 Lot 47 506 Lot 45 T A 8 L E I cont. ELEV. MOISTURE CONTENT ORY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBS.ICU.FT.) •~COMP TYPE TYPE 220.0 15.5 106.2 92 L 220.0 15.3 107.2 92 L 222.0 15.0 108.9 94 L 223.0 20.6 101.2 92 J 220.0 21.5 99.7 91 J 220.0 16.2 112.3 97 L SC 212.0 20.7 99.6 91 J 216.0 14.9 110.7 96 L 216.0 15.4 109.0 94 L 216.0 15.1 108.6 94 L 206.0 22.6 100.5 92 J 206.0 20.6 101.7 93 J 208.0 21.6 102.3 93 J 202.0 22.7 99.2 90 J 203.0 20.9 100.2 91 J 205.0 16.3 107.6 93 L 199.0 19.8 100.4 91 J 202.0 15.4 106.8 92 L 212.0 22.4 99.8 91 J 206.0 21.6 103.6 94 J 203.0 16.9 107.5 93 L 208.0 15.5 107.1 92 L 205.0 24.1 100.5 92 J 210.0 17.4 105.5 91 L 218.0 16.5 106.7 92 L 208.0 23.5 99.0 90 J 214.0 23.8 99.7 91 J SC 216.0 24.2 100.8 92 J 216.0 24.0 98.4 90 J 218.0 20.8 99.8 91 J 218.0 17.8 107.4 93 L 218.0 16.9 106.6 92 L 188.0 17.6 112.1 93 K 200.0 16.5 109.3 91 K 213.0 17.2 110.0 91 K 224.0 16.6 110.6 92 K 194.0 16.1 109.0 91 K 197.0 20.7 105.0 96 J PACIFIC SOILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9. 1996 TEST TEST TEST DATE NO. LOCATION 11/21/95 cont. 507 Lot46 508 Lot48 509 Lot 40 510 Lot 48 511 Lo147 512 Lot49 11/22/95 513 Lot 77 514 Lot 78 515 Lot 50 516 Lot 48 517 Lot 46 518 Lot 45 519 Lot 49 520 Lot 47 521 Lot 41 522 Lot 42 523 Lot 44 524 Lot 46 Authurium Drive 525 Sta. 27+89 526 Lot 57 527 Lot 56 528 Lot 71 529 Lot 73 530 Lot 75 531 Lot 79 532 Lot 77 11/27/95 533 Lot 67 534 Lot 68 535 Lot 66 536 Lot 67 537 Lot 68 538 Lot 64 539 Lot 62 540 Lot 58 541 Lot 77 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY (FT.) % (FIELD) (LBS.ICU.FT.) 196.0 11.8 117.3 190.0 11.6 115.6 222.0 13.8 116.7 194.0 14.2 113.1 196.0 13.7 114.8 196.0 13.1 116.9 218.0 23.1 102.5 220.0 21.7 101.6 198.0 22.9 100.3 198.0 22.0 99.9 198.0 21.0 101.2 200.0 23.6 103.2 200.0 16.9 110.8 200.0 14.8 116.5 217.0 15.3 115.4 208.0 21.7 104.2 205.0 22.9 101.7 202.0 23.2 99.8 204.0 22.5 100.1 200.0 20.4 99.7 203.0 21.6 102.0 220.0 22.0 101.2 220.0 19.6 109.7 220.0 21.6 100.7 218.0 21.1 100.9 222.0 20.8 101.5 206.0 20.5 100.8 208.0 16.0 114.9 208.0 18.3 112.8 209.0 22.5 100.0 210.0 22.9 102.5 208.0 20.3 101.3 207.0 21.7 104.1 202.0 20.8 103.7 224.0 12.8 113.6 PACIFIC SOILS ENGINEERING, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 92 B 90 B 93 D 90 D 92 D 91 B 93 J SC 93 J SC 91 J SC 91 J 92 J 94 J 92 K 93 D 92 D 95 J 93 J 91 J 91 J 91 J 93 J 92 J 91 K 92 J 92 J 92 J 92 J 92 D 94 K 91 J 93 J SC 92 J 95 J 94 J 91 D • • • • • • • • • • • Work. Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 11 /27 /95 cont. 542 Lot 74 543 Lot 72 544 Lot 76 545 Lot 73 546 Lot 71 547 Lot 75 548 Lot 78 549 Lot 79 550 Lot 40 551 Lot43 552 Lot 45 553 Lot48 554 Lot 47 555 Lot 50 556 Lot 49 557 Lot 48 558 Lot 46 559 Lot 44 560 Lot42 561 Lot47 562 Lot 50 563 Lot49 564 Lot45 565 Lot43 566 Lot 41 ELEV. (FT.) 222.0 222.0 223.0 224.0 223.0 224.0 224.0 221.0 224.0 206.0 204.0 202.0 204.0 202.0 204.0 206.0 206.0 209.0 212.0 208.0 206.0 208.0 208.0 210.0 210.0 Sweet Woodruff Road 567 Sta. 20+02 212.0 568 Sta. 23+80 212.0 11/28/95 569 Lot 42 216.0 570 Lot 44 213.0 571 Lot 46 210.0 572 Lot 48 209.0 573 Lot 50 209.0 574 Lot47 210.0 575 Lot 49 210.0 576 Lot 51 208.0 T A B L E I cont. MOISTURE CONTENT DRY DENSITY % (FIELD) (LBS.ICU.FT.) 13.8 112.9 19.5 109.2 18.7 111.3 15.4 108.2 13.2 117.3 22.6 100.8 21.0 102.5 21.5 101.1 22.1 100.9 20.2 99.8 21.6 102.4 20.8 101.5 22.3 103.1 21.8 102.2 22.4 105.8 17.6 108.7 17.2 109.3 22.2 99.7 21.9 102.5 13.7 112.2 14.1 114.7 13.5 111.9 21.0 102.0 22.6 104.1 13.9 112.8 14.0 113.6 23.6 103.3 20.2 101.4 21.3 103.5 20.6 100.2 22.1 102.3 21.7 103.3 14.6 113.6 13.9 111.9 14.2 112.8 PACIFIC S01LS ENGINEERING, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 90 D 91 K 93 K 93 L 94 D 92 J 93 J 92 J 92 J 91 J 93 J 92 J 94 J 93 J 96 J 90 K 91 K 91 J 93 J 91 H 93 H 90 H SC 93 J SC 95 J 91 H 92 H 94 J 92 J 94 J 91 J 93 J 94 J 92 H 90 H 91 H • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 11 /28/95 cont. 577 Lot 39 578 Lot 41 579 Lot 43 580 Lot 45 581 Lot 92 582 Lot 89 583 Lot 43 584 Lot 42 585 Lot 44 586 Lot 90 587 Lot 43 Bluebonnet Place 588 Sta. 10+70 11/29/95 597 Lot 79 598 Lot 77 599 Lot 75 600 Lot 74 601 Lot 72 602 Lot 76 603 Lot 70 ELEV. (FT.) 227.0 223.0 213.0 210.0 230.0 221.0 215.0 218.0 215.0 222.0 217.0 220.0 223.0 225.0 226.0 225.0 224.0 225.0 218.0 11/30/95 Cherry Blossom Road 604 Sta. 11+60 226.0 610 Sta. 11+70 230.0 612 Sta. 11+85 233.0 616 Sta. 11+35 235.0 12/1/95 624 Lot 67 210.0 625 Lot 69 215.0 626 Lot 90 217.0 627 Lot 92 227.0 628 Lot 68 211.0 629 Lot 69 217.0 630 Lot 90 219.0 631 Lot 91 228.0 T A B L E I cont. MOISTURE CONTENT DRY DENSITY % (FIELD) (LBSJCU.FT.) 21.5 101.4 13.7 114.7 21.8 100.0 22.6 99.6 14.0 113.8 16.7 107.7 15.6 106.9 14.3 112.6 20.9 103.0 22.5 101.7 21.3 102.2 13.8 113.1 21.0 100.7 22.6 102.5 21.7 101.3 14.2 113.5 13.8 113.8 14.0 112.7 22.2 101.9 13.7 113.6 15.6 106.4 16.2 104.9 16.2 104.6 16.1 106.9 15.8 107.8 21.6 99.7 20.7 102.6 15.9 105.8 22.3 103.1 21.8 101.5 16.2 106.3 PACIFIC SOILS ENCIINEERING11 INC, RELATIVE SOIL TEST %COMP TYPE TYPE 92 J 93 H 91 J 91 J 92 H 93 L 92 L 91 H 94 J 93 J 93 J 91 H 92 J 93 J 92 J 92 H SC 92 H SC 91 H SC 93 J 91 D 92 L 91 L 90 L 92 L 93 L 91 J 93 J 91 L 94 J SC 92 J 92 L SC • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/1 /95 cont. 632 Lot 71 633 Lot 72 634 Lot 73 635 Lot 74 636 Lot 75 637 Lot 76 638 Lot 77 639 Lot 78 640 Lot 79 641 Lot 36 642 Lot 38 643 Lot 37 644 Lot 42 645 Lot 43 646 Lot 46 647 Lot 45 648 Lot 42 649 Lot 44 650 Lot 47 651 Lot 38 12/4/95 652 Lot 69 653 Lot 89 654 Lot 91 655 Lot 70 656 Lot 94 657 Lot 93 658 Lot 83 659 Lot 85 660 Lot 82 661 Lot 98 662 Lot 97 663 Lot 99 664 Lot 96 665 Lot 101 666 Lot 98 667 Lot 100 ELEV. (FT.) 225.0 225.3 226.4 226.6 227.0 227.0 226.1 225.0 223.9 236.0 231.0 234.0 220.0 219.0 211.0 212.0 222.0 216.0 211.0 234.0 220.0 223.0 231.0 221.0 230.0 232.0 221.0 223.0 223.0 226.0 228.0 228.0 230.0 228.0 230.0 230.0 Cherry Blossom Road 670 Sta. 11+90 238.0 T A B L E I cont. MOISTURE CONTENT DRY DENSITY % (FIELD) (LBSJCU.FT.) 19.6 100.8 22.0 102.0 20.5 99.6 21.0 100.7 20.0 102.6 20.9 104.5 19.8 102.4 19.9 105.6 20.8 105.2 20.4 100.4 21.6 102.8 16.5 107.6 20.2 101.2 16.3 108.1 15.8 107.0 15.3 107.8 20.7 100.9 21.9 102.2 16.0 108.7 21.2 101.9 21.0 98.9 19.8 102.1 20.9 101.5 21.7 102.0 22.1 100.7 20.6 101.4 20.9 103.0 21.5 101.8 22.2 100.3 16.3 108.9 15.9 105.6 16.7 107.1 20.2 100.8 21.1 102.2 16.0 106.3 16.5 107.0 15.5 104.8 PACIFIC SQILS ENCIINEERING, INC, RELATIVE SOIL TEST '.4 COMP TYPE TYPE 92 J 93 J 91 J 92 J 93 J 95 J 93 J 96 J 96 J 91 J 94 J 93 L 92 J 93 L 92 L 93 L SC 92 J 93 J 94 L 93 J 90 J 93 J 92 J 93 J 92 J 92 J 94 J 93 J 91 J 94 L SC 91 L SC 92 L SC 92 J 93 J 92 L 92 L 90 L _____ __j • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/4/95 cont. 672 Lot 95 673 Lot 97 674 Lot 99 675 Lot 101 12/5/95 676 Lot 124 677 Lot 125 678 Lot 127 679 Lot 129 680 Lot 130 681 Lot 126 682 Lot 81 683 Lot 84 684 Lot 87 685 Lot 83 686 Lot 86 687 Lot 85 688 Lot 91 689 Lot 94 690 Lot 96 691 Lot 98 692 Lot 100 693 Lot 92 694 Lot 101 695 Lot 128 12/6/95 699 Lot 93 700 Lot 95 701 Lot 91 702 Lot 97 703 Lot 99 704 Lot 94 705 Lot 96 706 Lot 92 707 Lot 98 708 Lot 100 709 Lot 101 710 Lot 99 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBS.ICU.FT.) %COMP TYPE TYPE 232.0 19.9 102.1 93 J 232.0 22.0 101.8 93 J 232.0 17.0 106.6 92 L 232.0 16.4 105.4 91 L 212.0 15.1 106.2 92 L 217.0 16.0 105.5 91 L 220.0 16.3 105.1 91 L 227.0 15.8 104.4 90 L 230.0 16.2 104.6 90 L 219.0 15.5 106.8 92 L SC 218.0 21.1 100.6 92 J 223.0 22.3 99.8 91 J 223.0 16.3 105.7 91 L 224.0 16.8 106.5 92 L 224.0 23.1 100.3 91 J 225.0 15.9 107.6 98 J 232.0 15.8 105.2 91 L 234.0 15.3 104.6 90 L 234.0 16.1 107.7 93 L 234.0 15.5 106.4 92 L 234.0 15.7 108.9 94 L 234.0 20.9 100.3 91 J 236.0 21.3 102.0 93 J 224.0 16.0 105.5 91 L 235.0 14.9 105.3 91 L 235.0 15.3 106.6 92 L 235.0 15.0 107.8 93 L SC 236.0 20.7 101.9 93 J SC 236.0 22.2 103.0 94 J 237.0 16.6 106.3 92 L 238.0 16.2 104.4 90 L 238.0 21.3 100.2 91 J 238.0 15.7 108.2 93 L 238.0 16.8 106.0 91 L 239.0 16.4 105.6 91 L 239.0 15.7 108.0 93 L PACIFIC S01LS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/6/95 cont. 711 Lot 97 712 Lot 95 713 Lot 127 714 Lot 130 715 Lot 129 716 Lot 65 717 Lot 64 718 Lot 63 719 Lot 62 720 Lot 61 721 Lot 60 722 Lot 59 723 Lot 58 12/7/95 724 Lot 132 725 Lot 134 726 Lot 133 727 Lot 128 728 Lot 126 729 Lot 135 730 Lot 93 731 Lot 91 732 Lot 105 733 Lot 108 734 Lot 112 735 Lot 103 736 Lot 106 737 Lot 11 0 738 Lot 94 739 Lot 98 740 Lot 96 741 Lot 104 742 Lot 107 743 Lot 109 744 Lot 111 745 Lot 100 746 Lot 95 747 Lot 92 T A 8 L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 239.0 16.0 106.5 92 L 239.0 16.3 108.6 94 L 225.0 15.6 106.3 92 L 235.0 15.9 107.2 92 L 237.0 15.8 105.8 91 L 209.6 13.1 112.8 90 D 208.6 17.6 108.9 91 K 208.3 11.8 116.0 91 A SC 207.6 14.8 109.6 91 K 206.9 20.7 101.3 92 J 206.1 19.6 100.7 92 J 204.9 19.1 99.7 91 J 202.2 16.4 110.2 92 K 246.0 15.7 107.7 93 L 254.0 15.4 105.9 91 L 252.0 15.3 106.5 92 L 234.0 15.8 105.2 91 L 224.0 16.1 105.8 91 L 260.0 16.5 104.4 90 L 239.0 17.0 105.7 91 L 239.0 15.7 106.4 92 L 234.0 14.8 108.1 93 L 235.0 15.2 106.5 92 L 233.0 14.7 107.8 93 L 238.0 19.8 99.5 91 J 236.0 21.2 102.6 93 J 235.0 16.1 104.5 90 L 240.0 15.2 105.7 91 L 241.0 14.8 108.8 94 L 241.0 15.7 106.3 92 L 237.0 19.8 98.9 90 J 237.0 21.3 102.2 93 J 237.0 22.1 101.8 93 J 236.0 21.8 100.7 92 J 241.0 14.7 105.9 91 L 242.0 15.6 104.6 90 L 240.0 14.9 106.0 91 L PACIFIC SOILS ENCIINEEFUNCI, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/8/95 748 Lot 80 749 Lot 82 750 Lot 84 751 Lot 86 752 Lot 88 753 Lot 81 754 Lot 101 755 Lot 99 756 Lot 97 757 Lot 102 758 Lot 105 759 Lot 108 760 Lot 95 761 Lot 93 762 Lot 11 O 763 Lot 112 764 Lot 104 765 Lot 106 766 Lot 109 767 Lot 111 768 Lot 116 769 Lot 114 770 Lot 117 771 Lot 115 12/11/95 772 Lot 94 773 Lot 96 774 Lot 91 775 Lot 98 776 Lot 90 777 Lot 107 778 Lot 112 779 Lot 118 780 Lot 113 781 Lot 119 782 Lot 116 783 Lot 114 784 Lot 103 785 Lot 105 786 Lot 108 787 Lot 110 788 Lot 111 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 222.0 16.3 107.5 93 L 225.0 15.8 105.2 91 L 226.0 15.2 106.6 92 L 225.0 16.0 104.8 90 L SC 224.0 15.3 105.5 91 L SC 222.0 15.9 106.2 92 L SC 242.0 15.0 107.0 92 L 242.0 14.8 105.3 91 L 243.0 15.5 105.7 91 L 240.0 19.6 100.8 92 J 238.0 21.3 102.3 93 J 239.0 20.2 101.5 92 J 243.0 15.7 108.1 93 L 242.0 14.8 106.6 92 L 239.0 15.4 107.4 93 L 237.0 16.6 104.6 90 L 240.0 20.3 100.9 92 J 240.0 21.1 100.2 91 J 240.0 15.8 105.8 91 L 240.0 20.7 102.9 94 J 242.0 22.4 104.1 95 J 242.0 16.2 108.3 93 L 243.0 21.0 103.0 94 J 244.0 22.7 101.1 92 J 243.0 14.8 107.5 93 L 244.0 15.7 104.9 91 L 241.0 15.3 105.6 91 L 243.0 16.2 106.2 92 L 222.0 16.5 108.3 93 L 241.0 14.7 109.1 94 L 239.0 15.1 106.8 92 L 245.0 15.8 107.1 92 L 243.0 22.1 103.6 94 J 247.0 19.8 101.8 93 J 245.0 15.8 105.1 91 L 245.0 14.9 106.5 92 L 241.0 15.3 105.2 91 L 242.0 16.1 111.2 96 L 243.0 15.0 105.7 91 L 242.0 20.4 101.2 92 J 242.0 15.5 107.0 92 L PACIFIC SCHLB ENCIINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/11 /95 cont. 789 Lot 102 790 Lot 104 791 Lot 106 792 Lot 109 793 Lot 105 794 Lot 107 795 Lot 120 12/12/95 796 Lot 117 797 Lot 113 798 Lot 118 799 Lot 115 800 Lot 119 801 Lot 116 802 Lot 117 803 Lot 114 804 Lot 41 805 Lot 39 806 Lot 37 807 Lot 118 808 Lot 120 809 Lot 40 810 Lot 38 811 Lot 40 812 Lot 119 813 Lot 117 814 Lot 115 815 Lot 113 816 Lot 116 817 Lot 114 818 Lot 118 819 Lot 120 820 Lot 115 821 Lot 113 12/14/95 822 Lot 39 823 Lot 38 824 Lot 39 825 Lot 36 826 Lot 126 827 Lot 127 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) 'lo COMP TYPE TYPE 242.0 15.8 104.6 90 L 243.0 16.2 108.5 94 L 244.0 14.9 105.9 91 L 243.0 16.0 108.8 94 L 244.0 21.8 101.1 92 J 243.0 20.3 100.8 92 J 250.0 22.7 103.0 94 J 246.0 15.2 107.9 93 L 246.0 21.6 104.1 95 J 248.0 20.5 103.6 94 J 248.0 21.3 100.9 92 J 250.0 22.1 100.3 91 J 249.0 21.8 103.0 94 J 250.0 15.9 105.5 91 L 249.0 21.6 99.1 90 J SC 226.0 16.2 104.5 90 L SC 230.0 15.7 108.1 93 L 237.0 15.4 107.0 92 L 252.0 20.7 103.4 94 J 252.0 21.3 101.2 92 J 228.0 16.0 107.5 93 L 227.0 16.3 108.3 93 L 231.0 19.9 101.4 92 J 254.0 20.8 102.4 93 J 254.0 19.7 104.3 91 M 252.0 19.5 105.1 92 M 250.0 20.2 100.0 91 J 253.0 18.9 103.9 91 M 253.0 17.8 105.5 92 M 255.0 22.5 101.5 92 J 255.0 20.7 102.3 93 J 256.0 16.9 104.7 92 M 254.0 17.5 106.2 93 M 232.0 20.9 99.8 91 J 239.0 21.7 101.6 93 J 235.0 17.8 104.9 92 M 240.0 22.2 102.2 93 J 221.0 15.8 108.2 93 L 223.0 17.5 106.1 93 M PACIFIC SOILS ENGINEERING, INC, • • • • • • • • • • • Work. Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/14/95 cont. 828 Lot 128 829 Lot 129 832 Lot 128 833 Lot 129 834 Lot 130 835 Lot 131 836 Lot 39 837 Lot 35 838 Lot 37 839 Lot 36 840 Lot 35 842 Lot 34 843 Lot 114 844 Lot 116 845 Lot 118 846 Lot 115 847 Lot 117 12/15/95 850 Lot 119 851 Lot 116 852 Lot 113 853 Lot 114 854 Lot 130 855 Lot 132 856 Lot 133 857 Lot 35 858 Lot 37 859 Lot 34 860 Lot 36 865 Lot 35 866 Lot 34 867 Lot 33 872 Lot 118 873 Lot 117 874 Lot 115 875 Lot 34 12/21/95 919 Lot 66 920 Lot 67 921 Lot 68 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBS.ICU.FT.) %COMP TYPE TYPE 222.0 17.9 104.9 92 M 230.0 16.5 107.6 93 L 228.0 19.5 101.1 92 J 232.0 15.2 110.7 96 L 234.0 20.8 99.2 90 J 238.0 16.1 103.8 91 M 234.0 20.7 101.7 93 J 242.0 20.3 100.3 91 J 240.0 18.1 104.4 91 M SC 244.0 16.3 105.9 93 M SC 246.0 22.1 100.2 91 J 249.0 19.8 101.4 92 J 256.0 17.3 106.6 93 M 256.0 16.5 104.3 91 M 257.0 16.0 108.8 94 L 258.0 15.3 106.2 92 L 258.0 15.9 105.2 92 M 256.0 22.8 100.1 91 J 259.0 19.8 99.6 91 J 257.0 15.7 108.7 94 L 258.0 15.2 109.1 94 L 236.0 14.7 104.9 91 L 242.0 15.8 107.1 92 L 247.0 14.9 106.4 92 L 248.0 20.5 104.4 95 J 243.0 17.3 106.1 93 M SC 252.0 16.1 105.8 93 M SC 247.0 21.2 101.3 92 J SC 250.0 20.7 101.9 93 J 254.0 20.3 100.6 92 J 255.0 17.2 105.1 92 M 259.0 15.2 106.9 92 L 260.0 14.9 105.7 91 L 260.0 16.0 104.8 92 M 256.0 22.3 102.2 93 J 210.0 12.3 115.2 92 D 210.9 11.9 114.7 92 D 211.3 12.8 116.3 93 D PACIFIC SOILS ENCIINEERINCI, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/21/95 cont. 922 Lot 48 923 Lot 49 924 Lot 50 925 Lot 51 926 Lot 52 927 Lot 53 928 Lot 54 929 Lot 55 930 Lot 56 931 Lot 57 932 Lot 69 933 Lot 70 Anthurium Drive 941 Sta. 33+93 942 Sta. 32+65 943 Sta. 29+82 944 Sta. 28+03 Bluebonnet Place 945 Sta. 17+45 946 Sta. 14+77 12/22/95 Anthurium Drive 947 Sta. 33+22 948 Sta. 31 +45 949 Sta. 29+30 950 Sta. 27+97 Bluebonnet Place 951 Sta. 16+15 952 Sta. 13+76 953 Sta. 12+35 954 Sta. 11+23 12/27/95 985 Lot 12 986 Lot 16 999 Lot 13 1000 Lot 16 1001 Lot 19 1002 Lot 12 1003 Lot 15 1004 Lot 18 022GR02:kr T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY (FT.) % (FIELD) (LBSJCU.FT.) 211.7 19.7 99.6 211.0 18.9 102.1 210.7 15.8 109.5 209.6 14.7 104.1 209.3 15.4 105.7 208.2 18.9 102.2 207.9 14.9 104.9 207.0 19.6 100.7 206.7 21.4 102.2 204.7 14.4 105.8 223.5 14.5 105.4 223.9 21.6 99.4 197.0 19.7 102.0 203.0 20.3 101.2 205.0 16.3 108.6 207.0 16.1 104.4 216.0 15.7 105.8 220.0 21.1 100.7 201.0 16.3 103.2 204.0 13.6 113.7 206.0 12.8 115.2 208.0 15.9 105.7 220.0 16.7 104.8 222.0 17.2 106.2 220.0 16.2 103.9 219.0 13.8 114.7 242.0 12.9 116.3 253.0 17.2 107.9 246.0 16.7 102.9 257.0 13.7 117.8 267.0 12.9 116.7 248.0 17.0 106.0 256.0 16.8 105.3 268.0 13.2 118.0 PACIFIC SOILS ENCIINEERINC3, INC. RELATIVE SOIL TEST %COMP TYPE TYPE 91 J 93 J 96 M 91 M 93 M 93 J 92 M SC 92 J 93 J 93 M 91 L 91 J 93 J 92 J 94 L 91 M 93 M SC 92 J SC 90 M 91 D 92 D 93 M 92 M 93 M 91 M 92 D 93 I 94 M 90 M 94 I 93 I 93 M 92 M 94 I • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 12/28/95 Strelitzia Circle 1011 Sta. 16+22 1012 Sta. 14+07 1013 Sta. 11+31 1014 Sta. 14+95 1015 Sta. 13+06 1016 Sta. 10+65 1017 Lot 14 1018 Lot 17 1019 Lot 20 1020 Lot 13 1021 Lot 16 1022 Lot 19 1023 Lot 12 1024 Lot 15 1025 Lot 18 1026 Lot 21 1027 Lot 14 1028 Lot 17 1029 Lot 20 1030 Lot 12 12/29/95 1035 Lot 13 1036 Lot 16 1037 Lot 19 1038 Lot 12 1039 Lot 15 1040 Lot 18 1041 Lot 21 1047 Lot 14 1048 Lot 17 1049 Lot 20 1050 Lot 13 1051 Lot 16 1052 Lot 19 1053 Lot 12 1054 Lot 15 1055 Lot 18 1056 Lot 21 TABLE I cont. ELEV. MOISTURE CONTENT DRY DENSITY (FT.) % (FIELD) (LBS.ICU.FT.) 236.0 14.6 114.8 236.0 21.2 100.3 233.0 20.5 102.8 239.0 22.0 101.5 238.0 15.0 113.9 236.0 15.2 114.6 256.0 14.3 113.1 265.0 13.8 116.3 273.0 14.0 115.5 258.0 17.3 104.7 268.0 15.0 116.2 275.0 16.7 106.0 253.0 16.3 107.0 262.0 13.6 115.3 272.0 16.2 108.8 275.0 13.9 114.6 260.0 13.7 115.7 270.0 14.2 113.9 277.0 16.6 104.9 260.0 13.5 114.2 263.0 13.1 116.2 272.0 12.9 112.6 276.0 12.6 115.3 262.0 17.3 102.9 264.0 16.8 104.3 274.0 17.0 103.8 280.0 17.5 106.3 265.0 17.7 102.8 275.0 17.2 103.9 282.0 14.3 113.8 267.0 16.6 106.7 274.0 16.2 105.9 280.0 17.1 104.8 265.0 16.9 107.1 267.0 16.4 105.9 277.0 17.0 105.3 283.0 16.5 104.7 PACIFIC SOILS ENGINEERING, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 92 I 91 J 94 J 92 J 91 I 92 I 90 D 93 D 92 I 92 M 93 I 93 M SC 94 M SC 92 I SC 95 M 92 I 93 91 92 M 91 I 93 I 90 I 92 I 90 M 91 M 91 M 93 M 90 M 91 M 91 I 93 M 93 M SC 92 M 94 M 93 M 92 M 92 M • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 1/2/96 1057 Lot 7 1058 Lot 7 1059 Lot 11 1060 Lot 9 1061 Lot 7 1062 Lot 10 1063 Lot 8 1064 Lot 14 1065 Lot 17 1066 Lot 20 1067 Lot 13 1068 Lot 16 1069 Lot 19 1070 Lot 12 1071 Lot 15 1072 Lot 18 1/3/96 1073 Lot 80 1074 Lot 81 1075 Lot 82 1076 Lot 83 1077 Lot 84 1078 Lot 85 1079 Lot 86 1080 Lot 87 1081 Lot 88 1082 Lot 89 1083 Lot 90 1084 Lot 28 1085 Lot 26 1086 Lot 27 1087 Lot25 1088 Lot 28 1089 Lot 26 1090 Lot 27 1091 Lot 26 1092 Lot 28 1093 Lot 27 1094 Lot 26 TABLE I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 270.0 15.9 105.6 92 M 272.0 15.8 107.8 94 M 268.0 16.5 103.7 91 M 271.0 16.3 104.3 91 M 274.0 17.2 103.2 90 M 270.0 16.7 106.1 93 M 274.0 17.0 105.5 92 M SC 269.0 16.0 103.3 90 M SC 277.0 16.9 107.2 94 M SC 284.0 16.3 106.5 93 M 270.0 16.6 105.9 93 M 276.0 17.3 106.9 94 M 283.0 17.5 105.3 92 M 267.0 16.7 103.1 90 M 271.0 16.3 103.8 91 M 279.0 16.6 104.8 92 M 223.9 17.1 101.8 93 J 225.0 16.7 102.7 94 J 226.5 14.6 105.8 96 J 227.0 14.2 103.7 94 J 227.0 12.9 111.6 96 L 226.4 12.6 109.0 94 L 225.9 20.3 102.8 94 J 225.0 14.9 109.8 95 L 224.5 14.8 109.0 94 L 223.6 19.5 101.9 93 J 223.5 19.4 103.4 94 J 274.0 20.8 98.9 90 J 277.0 19.8 99.2 90 J 278.0 21.6 100.3 91 J 285.0 17.9 104.8 92 M 276.0 20.3 10·1.2 92 J 280.0 16.6 105.5 92 M 280.0 21.5 100.8 92 J 283.0 20.9 100.3 91 J 278.0 17.0 106.1 93 M 282.0 21.9 98.8 90 J 285.0 16.8 105.3 92 M PACIFIC SOILS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 1/4/96 1099 Lot 28 1100 Lot 27 1101 Lot 26 1102 Lot 25 1107 Lot 91 1108 Lot 92 1109 Lot 93 1110 Lot 94 1111 Lot 95 1112 Lot 96 1113 Lot 97 1114 Lot 98 1115 Lot 99 1116 Lot 100 1117 Lot 101 1/5/96 1118 Lot 39 1119 Lot 40 1120 Lot 41 1121 Lot 42 1122 Lot 43 1123 Lot 44 1124 Lot 45 1125 Lot 46 1126 Lot 47 1127 Lot 121 1128 Lot 122 1129 Lot 123 1130 Lot 124 1131 Lot 125 1132 Lot 126 1133 Lot 127 1134 Lot 128 1135 Lot 129 1136 Lot 130 1137 Lot 131 1138 Lot 132 1139 Lot 133 TABLE I cont. ELEV. MOISTURE CONTENT DRYDENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBS..CU.FT.) %COMP TYPE TYPE 280.0 16.8 105.0 92 M 284.0 20.9 100.7 92 J 287.0 21.5 102.6 93 J 288.0 17.2 104.3 91 M 241.3 14.6 106.2 92 L 242.2 13.5 106.5 92 L 243.3 13.0 108.7 94 L 243.7 12.8 109.4 94 L 244.6 13.2 107.9 93 L 245.0 13.6 107.2 92 L SC 245.2 13.3 110.6 95 L SC 245.2 11.7 110.3 95 L 244.3 14.0 110.2 95 L 243.9 12.3 112.5 97 L 243.1 12.7 112.6 97 L 235.6 19.4 99.6 91 J 231.7 13.4 111.1 96 L 227.8 16.9 104.2 95 J 224.0 16.7 102.5 93 J 221.0 16.3 101.0 92 J 217.8 12.5 106.4 92 L 214.5 16.3 102.9 94 J 212.7 16.1 101.8 93 J 212.0 18.6 103.9 95 J 201.9 13.9 107.0 92 L 206.9 14.1 111.8 96 L 210.2 14.4 110.0 95 L 213.7 14.8 108.8 94 L 217.6 13.9 107.5 93 L 221.5 13.6 107.6 93 L SC 225.4 13.2 112.6 97 L SC 229.4 12.8 110.4 95 L 233.3 12.9 105.6 96 J 237.2 17.6 103.1 94 J 241.1 20.6 103.0 94 J 245.0 20.6 103.0 94 J 249.5 20.3 99.8 91 J PACIFIC BOILS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 1 /5/96 cont. 1140 Lot 134 1141 Lot 135 1142 Lot 136 1143 Lot 137 1144 Lot 138 1/8/96 1145 Lot 131 1146 Lot 132 1147 Lot 133 1148 Lot 134 1149 Lot 135 1150 Lot 136 1151 Lot 137 1152 Lot 138 1/9/96 1153 Lot 34 1154 Lot 35 1155 Lot 36 1156 Lot 37 1157 Lot 38 ELEV. (FT.) 252.0 252.9 252.2 251.0 245.9 241.1 245.0 249.5 252.0 252.9 252.2 251.0 245.9 256.5 252.6 248.6 244.5 240.5 Sweet Woodruff Road 1158 Sta. 27+20 208.0 1159 Sta. 24+91 217.0 1160 Sta. 22+65 229.0 1161 Sta. 21+10 237.0 1162 Sta. 19+40 245.0 1/10/96 1167 Lot 7 276.8 1168 Lot 8 275.1 1169 Lot 9 272.5 1170 Lot 10 271.1 1/11/96 1177 Lot 25 289.3 1178 Lot 26 288.2 1179 Lot 27 284.8 1180 Lot 28 281.1 TABLE I cont. MOISTURE CONTENT DRY DENSITY % (FIELD) (LBS.ICU.FT.) 21.5 102.2 20.8 100.1 19.8 100.7 21.7 102.2 20.4 101.9 16.5 100.8 16.0 102.3 18.7 100.9 16.0 112.0 12.3 110.2 12.4 105.4 16.7 103.1 19.2 100.5 20.2 99.0 20.3 100.0 20.6 100.4 19.8 102.5 21.7 101.3 19.8 103.1 13.2 114.7 12.9 115.8 20.6 102.0 21.5 101.5 15.9 106.6 14.6 103.6 14.2 103.8 14.0 104.9 14.3 104.7 21.1 99.8 20.4 102.5 19.2 99.2 PACIFIC SOILS ENGINEERING, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 93 J 91 J 92 J SC 93 J 93 J 92 J 93 J 92 J 97 L 95 L: 91 L SC 94 J 92 J 90 J 91 J 91 J 93 J 92 J 94 J 92 I 93 I SC 93 J 92 J 93 M 91 M 91 M 92 M 92 M 91 J 93 J 90 J • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 1/12/96 1185 Lot 20 1186 Lot21 1187 Lot 11 1188 Lot 12 1189 Lot 14 1190 Lot 15 1191 Lot 19 1192 Lot 20 1193 Lot 21 1/16/96 1204 Lot 11 1205 Lot 12 1206 Lot 13 1207 Lot 14 1208 Lot 15 1209 Lot 16 1210 Lot 17 1211 Lot 18 1212 Lot 19 1213 Lot 1 1214 Lot 2 1215 Lot 3 1216 Lot 4 1217 Lot 5 1218 Lot 6 1219 Lot 31 1220 Lot 32 Antnurium 1221 Sta. 33+25 1222 Sta. 21+00 1223 Sta. 28+97 1/17/96 1224 Lot 1 1225 Lot 2 1226 Lot 3 1227 Lot 4 1228 Lot 5 1229 Lot 6 T A 8 L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY (FT.) % (FIELD) (LBS.ICU.FT.) 286.0 19.8 101.9 286.0 21.1 99.8 268.0 20.7 102.7 269.0 16.8 104.9 272.0 16.2 106.2 273.0 19.9 101.6 284.0 21.2 101.1 288.0 20.3 100.5 288.7 19.8 100.3 270.4 13.1 109.3 270.4 13.6 107.0 272.3 16.0 104.0 274.0 18.8 99.4 275.9 20.4 100.6 277.6 19.4 101.9 278.9 19.3 99.8 281.8 18.9 100.7 284.9 19.0 101.6 254.0 16.0 105.7 256.0 20.3 102.8 258.0 15.2 105.2 259.0 15.9 108.1 259.0 16.8 105.8 258.0 21.9 101.2 255.0 20.2 102.5 256.0 20.4 101.9 203.0 14.4 105.9 205.0 19.1 100.1 207.0 14.6 104.9 255.8 19.2 105.1 257.6 21.0 101.7 259.7 20.8 99.8 260.9 20.5 102.2 260.8 19.3 104.3 260.3 19.4 100.9 PACIFIC SOILS ENGINEERING, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 93 J 91 J 94 J 92 M 93 M 93 J SC 92 J SC 92 J 91 J 94 L 92 L 91 M 91 J 92 J 93 J 91 J 92 J 93 J 91 L 94 J 91 L 93 L 91 L 92 J SC 93 J SC 93 J SC 93 M 91 J 92 M 92 M 93 J 91 J 93 J 91 M 92 J • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 1/18/96 1232 Lot 113 1233 Lot 114 1234 Lot 115 1235 Lot 116 1236 Lot 117 1237 Lot 118 1238 Lot 119 1239 Lot 120 1/23/96 1279S Lot 57 1280S Lot 57 1281S Lot 121 1282S Lot 121 1283S Lot 121 1284S Lot 121 1285S Lot 122 1/24/96 1286 Lot 31 1287 Lot 32 1288 Lot 33 1289 Lot 102 1290 Lot 103 1291 Lot 104 1292 Lot 105 1293 Lot 106 1294 Lot 107 1295 Lot 108 1296 Lot 109 1297 Lot 110 1298 Lot 111 1299 Lot 112 1/26/96 1312 Lot 1 1313 Lot 1 Coneflower Drive 1314 Sta. 14+00 1315 Sta. 16+55 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY (FT.) % (FIELD) (LBSJCU.FT.) 258.4 20.5 103.3 259.5 14.1 106.1 260.5 15.6 106.4 260.6 15.8 105.1 260.7 14.6 104.6 259.5 15.3 108.1 257.5 20.8 100.3 256.0 14.5 106.5 202.0 10.8 112.7 198.0 18.5 99.2 178.0 13.3 111.5 188.0 15.0 100.8 196.0 16.8 99.0 192.0 18.5 99.2 204.0 12.9 106.4 257.6 18.6 100.6 257.3 20.7 98.9 256.9 19.3 100.2 243.1 15.0 109.3 243.9 16.7 107.8 244.3 16.6 106.1 245.2 15.5 105.0 245.2 18.2 102.1 244.7 18.8 102.7 244.2 20.7 101.8 243.3 14.6 108.5 242.8 16.3 107.8 242.1 16.1 106.5 241.6 16.0 105.4 253.0 13.2 113.6 255.0 12.8 112.8 255.0 13.6 114.0 254.0 13.0 113.1 PACIFIC SOILS ENGINEERING, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 94 J 92 L 92 L 91 L 90 L 93 L 91 J 92 L 90 90 J 90 H SC 92 J 90 J 90 J 92 L 92 J 90 J 91 J 94 L 93 L 92 L 91 L 93 J 94 J 93 J 94 L SC 93 L SC 92 L 91 L 92 H 91 H 92 H 91 H • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST ELEV. DATE NO, LOCATION (FT.) 1/29/96 Blueboonet Place 1316 Sta. 11+60 221.0 1317 Sta. 12+58 222.0 1318 Sta. 14+40 224.0 1319 Sta. 15+45 223.0 1320 Sta. 16+95 218.0 Coneflower Drive 1321 Sta. 16+81 257.0 1322 Sta. 14+83 258.0 Strelitzia Circle 1323 Sta. 16+80 238.0 1324 Sta. 14+55 242.0 1325 Sta. 13+51 241.0 1326 Sta. 11+77 239.0 1327 Sta. 10+50 238.0 Sweet Woodruff Road 1328 Sta. 19+12 252.0 1329 Sta. 20+35 244.0 1330 Sta. 21+62 237.0 1331 Sta. 24+35 221.0 1332 Sta. 25+50 215.0 1333 Sta. 26+85 209.0 1334S Lot 69 220.0 1335S Lot 91 237.0 1336S Lot 113 253.0 1/30/96 Cherry Blossom Road 1349 Sta. 21+36 227.0 1350 Sta. 23+25 216.0 1351 Sta. 25+11 205.0 1352 Sta. 27+22 192.0 1353 Sta. 20+54 235.0 1354 Sta. 22+14 224.0 1355 Sta. 23+75 213.0 1356 Sta. 25+46 203.0 1357 Sta. 26+22 198.0 1358 Sta. 27+60 188.0 2/5/96 1359S Lot 79 218.0 1360S Lot 101 240.0 1361S Lot 134 257.0 1362S Lot 135 259.0 T A B L E I cont. MOISTURE CONTl;NT DRY DENSITY % (FIELD) (LBS.ICU.FT.) 15.9 107.4 15.2 107.7 14.2 105.8 14.8 108.7 15.5 107.7 21.3 101.4 20.7 103.0 20.3 100.8 20.8 102.0 21.2 100.7 15.6 108.6 21.9 103.6 21.1 100.7 16.7 106.6 20.5 101.6 19.6 101.0 20.2 101.7 20.3 104.7 13.2 104.7 14.8 105.4 12.6 104.8 12.7 114.1 11.9 112.7 20.6 100.2 16.1 108.5 21.2 99.8 20.7 103.6 21.5 102.2 13.0 113.7 12.6 114.5 21.3 104.1 13.2 112.1 12.8 111.8 15.6 105.5 15.2 106.1 PACIFIC SOILS ENGIINEERINGI, INC, RELATIVE SOIL TEST %COMP TYPE TYPE 94 M 93 L 91 L SC 94 L SC 93 L 92 J 94 J 92 J 93 J 92 J 95 M 94 J 92 J 93 M 93 J 92 J 93 J 95 J 90 L 91 L 90 L 92 H SC 91 H SC 91 J 94 L 91 J 94 J 93 J 92 H 92 H 95 J 91 H 90 H 91 L 92 L • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 2/6/96 1364S Lot6 1365S Lot 7 1366S Lot28 1367S Lot 29 1368S Lot 30 1369S Lot 31 1370S Lot 90 1371S Lot 89 1372S Lot 88 1373S Lot 87 1374S Lot 86 1375S Lot 85 1376S Lot 84 1377S Lot 83 1378S Lot 82 1379S Lot 81 1380S Lot 80 2/7/96 1381S Lot 102 1382S Lot 104 1383S Lot 105 1384S Lot 107 1385S Lot 108 1386S Lot 109 1387S Lot 110 1388S Lot 111 1389S Lot 112 1390S Lot 112 2/8/96 1393S Lot 58 1394S Lot 59 1395S Lot 60 1396S Lot 61 1397S Lot 62 1398S Lot 63 1399S Lot 64 1400S Lot 65 1401S Lot 66 1402S Lot 67 1403S Lot 68 T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 271.0 14.0 105.5 91 L 273.0 17.5 102.8 90 M 274.0 20.3 99.8 91 J 274.0 20.1 98.9 90 J 279.0 14.6 103.9 91 M 282.0 21.2 101.3 92 J 230.0 15.0 105.4 91 L 238.0 14.3 105.7 91 L SC 233.0 16.6 105.8 91 L SC 240.0 15.7 104.8 90 L 237.0 16.7 106.2 92 L 241.0 20.6 100.3 91 J 232.0 16.0 106.9 92 L 240.0 15.6 104.6 90 L 236.0 20.2 99.3 90 J 226.0 19.1 99.2 90 J 237.0 15.8 107.0 92 L 252.0 19.3 100.6 92 J 249.0 21.1 99.8 91 J 258.0 19.7 99.2 90 J 254.0 19.9 99.6 91 J 249.0 20.8 101.5 92 J 252.0 19.2 99.7 91 J 256.0 19.8 101.8 93 J 253.0 15.6 108.3 93 L 255.0 19.5 99.4 91 J 250.0 15.7 106.4 92 L 205.0 13.8 104.8 90 L 214.0 20.1 100.1 91 J 220.0 20.5 99.2 90 J 225.0 21.3 100.6 92 J 212.0 16.3 108.0 93 L SC 217.0 15.8 107.9 93 L SC 221.0 19.2 100.7 92 J 225.0 21.6 100.1 91 J 219.0 21.0 99.6 91 J 221.0 19.3 99.0 90 J 216.0 18.7 101.0 92 J PACIFIC SOILS ENCIINEERING1 INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TEST TEST TEST DATE NO. LOCATION 2/9/96 1404S Lot 37 1405S Lot 38 1406S Lot 39 1407S Lot 40 1408S Lot 41 1409S Lot 42 1410S Lot 43 1411S Lot 44 1412S Lot 45 1413S Lot 46 1414S Lot 46 1415S Lot 47 2/13/96 1416S Lot 11 1417S Lot 12 1418S Lot 12 1419S Lot 12 1420S Lot 12 1421S Lot 13 1422S Lot 14 1423S Lot 14 1424S Lot 15 1425S Lot 15 1426S Lot 16 1427S Lot 17 1428S Lot 18 1429S Lot 19 1430S Lot 19 1431S Lot 20 1432S Lot 21 0224GR2A:kr T A B L E I cont. ELEV. MOISTURE CONTENT DRY DENSITY RELATIVE SOIL TEST (FT.) % (FIELD) (LBSJCU.FT.) %COMP TYPE TYPE 242.0 20.7 99.8 91 J 235.0 20.9 101.2 92 J 232.0 19.6 100.1 91 J 228.0 19.2 99.7 91 J 221.0 15.2 105.8 91 L 220.0 21.0 99.8 91 J 211.0 19.1 99.3 90 J 213.0 15.1 104.8 90 L 210.0 14.8 106.2 92 L 207.0 15.5 104.7 90 L 208.0 19.8 99.0 90 J 205.0 14.9 105.0 91 L 267.0 16.0 104.5 90 L 261.0 20.3 101.6 93 J 256.0 15.7 106.5 92 L 252.0 13.9 104.9 91 L 266.0 14.5 103.6 91 M SC 262.0 13.0 103.5 91 M SC 259.0 15.4 104.6 92 M SC 270.0 13.5 102.8 90 M 263.0 14.2 104.3 91 M 273.0 14.4 103.1 90 M 270.0 15.5 103.6 91 M 275.0 19.6 99.2 90 J 274.0 15.2 102.9 90 M 282.0 14.9 103.3 90 M 273.0 15.7 107.0 92 L 279.0 15.4 104.0 91 M 284.0 14.4 103.9 91 M PACIFIC SDILS ENGINEERING, INC. • • • • • • • • • • • Work Order 400224GR May 9, 1996 Approx. TABLE 11 DEPTH OF FILL Approx . Lot No. Maximum Degth of Fill (ft.} Lot No. Maximum Degth of Fill (ft.} 1 3** 31 3- 2 3** 32 3- 3 3** 33 3- 4 3** 34 13* 5 3** 35 17* 6 3** 36 16 7 8* 37 16 8 3** 38 14 9 3** 39 15 10 3** 40 15 11 9* 41 19 12 30* 42 29 13 30* 43 26 14 32* 44 25 15 31* 45 21 16 24* 46 22 17 19* 47 37 18 13* 48 36 19 15* 49 34 20 17* 50 26 21 19* 51 18 22 cut 52 15 23 cut 53 17 24 cut 54 17 25 8* 55 14 26 13* 56 19 27 13 57 33 28 9 58 19 29 cut 59 24 30 cut 60 27 PACIFIC SOILS ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 Approx. TABLE 11 cont. DEPTH OF FILL Approx. Lot No . Maximum De12th of Fill (ft.) Lot No. Maximum DeQth of Fill (ft.} 61 20 92 19 62 9 93 20 63 10 94 22 64 11 95 23 65 14 96 22 66 25 97 25 67 20 98 37 68 16 99 27 69 22 100 22 70 18 101 20 71 23 102 7* 72 23 103 11* 73 24 104 13 74 23 105 16 75 24 106 16 76 35 107 14 77 35 108 13 78 34 109 12 79 35 110 11 80 19* 111 13 81 12* 112 13 82 20 113 21 83 20 114 23 84 14 115 25 85 13 116 23 86 11 117 23 87 9 118 20 88 7* 119 15* 89 8* 120 10* 90 14 121 34 91 30 122 27 PACIFIC SCHLB ENGINEERING, INC, • • • • • • • • • • • Work Order 400224GR May 9, 1996 TABLE 11 cont. DEPTH OF FILL Approx. Lot No. Maximum DeQth of Fill {ft.} 123 124 125 126 127 128 129 130 * ** 18* 14* 11* 8* 8* 10* 10* 10* overexcavated due to cut/fill transition overexcavated due to unsuitable soils Lot No. 131 132 133 134 135 136 137 138 Approx. Maximum DeQth of Fill (ft.} 8* 3** 3** 3** 3** 3** 3** 3** PACIFIC S01LB ENCIINEERINGI, INC, N IS) IS) 1-\) I'.;) r::, ll. '..) IS) ,:o r,, I:) Q ·D ul ,T, ..... D 1- ,)1 '.l.l -~ :r ). ,5 _) ::i l:'. ,1.. X X :) _) S) S) 11 ..... D J) ::, •1 ' .,. S) L_ • ( (., ,' • • • • • • • CERCO Analytical, Inc. 3942-A Valley Avenue, Pleasanton, CA 94566 (510) 462-2771 Fax (S JO) 462-277S Clitnt· Clhmt'• Project No.: Client's Project Name: Authorization: Job/Sample No. 9602070-00 I 9602070-002 9602070-003 9602070-00.t Method: Detection Limit: J Corrpro ComP1nl11, Jnc, 02-53-.S2•5.26S3 Pacific Solis Work Order No.400224GR Samplel.D. Lot ss Lot 116 Lot 120 Lot 1"4 Matrix Soil Soil Soil Soil FINAL RESULTS Moisture SulfaJc (%) pH• (mg/Jc, )• --8.0 l64l -8.1 130, ·-8.0 110 -7.8 190 I . . I I I ASTM D2!J74A ASTM D.2,76 ASTM DSIM 27-Feb-96 • Results reported on a wet weight basis I O..uty CePttp? S'YllfP■a • All laltentory 111Mllty cerlntl pal'Mli'len -n Jol>f'II te lie 'tllithlr -IIW llmlU Date Sampled: Date Received: Date ol'Repon: CDnductivity (omholc,n)• 2,.SOO 1,600 1,200 l60 ASTM 01125 10 27-Feb-96 • • • Pebnw)i 05, 1996 Pcbrual)' 16, J996 Febnwy29, J996 Sulfkte Cllloride (·g)• (qlkg)• N.D. 170 N.D. 340 N.D. 240 N.D. so ASTMD46.58 ASTMDS12C 0.3 s 27-Feb-96 27-Feb-96 ........ PLATEA