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Home My WebLink AboutCT 02-29; CASA LA COSTA; FOUNDATION DESIGN PARAMETERS BUILDING PADS 1-10; 2004-07-09'• - PACIFIC SOILS ENGINEERING, INC. 7715 CONVOY COURT, SAN DIEGO, CALIFORNIA 92111 TELEPHONE: (858) 560-1713, FAX: (858) 56070380 TRIMARK HOMES 613 West Valley Parkway, Suite 200 S Escondido, CA 92025 •• S July 9, 2004 ' Work Order 400942 Attention: Mr. Paul Faye Subject: Foundation Design Parameters, Building Pads 1 through 10, Villas de La Costa, in the City of Carlsbad, California References: Preliminary Geotechnical,Investigation and Grading Plan Review, Casa La Costa,, City of Carlsbad, CA, by Pacific Soils Engineering, Inc., dated Octo- ber 9, 2003 (Work Order 400942) Geotecimical Summary for Due Diligence Purposes, Casa La Costa, City of ' . Carlsbad, CA, by Pacific Soils Engineering, Inc., dated September 3, 2003 (Work Order 400942). Gentlemen: S Presented herein are Pacific Soils Engineering, Inc.'s (PSE) foundation design recommendations for building pads I through 10, Villas de La Costa, located in the City of Carlsbad, California. The subject site was graded during May through June 2004. During this phase of grading, ,PSE oh- served and tested the-rough and precise grading to prepare the site for multi-family residential building pads and associated improvements. Precise grading of building pads 1 through 10 has been completed. From a geotechnical point of view the subject building pads are suitable for the proposed residential devélopment A project grading report summarizing PSE's observations and. compaction test results is currently being prepared. S. 'CORPORATE HEADQUARTERS - • LOS ANGELES COUNTY • • RIVERSIDE COUNTY TEL: (714) 220-0770 TEL: (310) 325-7272 or (323) 775-6771 • • TEL: (909) 582-0170 FAX: (714) 220-9589 FAX: (714) 220-9589 • FAX: (909) 582-0176 SOUTH ORANGE COUNTY TEL: (714) 730-2122 FAX: (714) 730-5191 LOT,','INDEX EXPANSION - y •L:; . EXPANSION POTENTIAL SEISMIC SOIL PROFILE TYPE a PR '0 MAXIMUM DEPTH OFI?ILL PLACED 83 Medium SD 7•O 52 • Medium Sc - 6.0 80 Medium Sc 6.0 K34, 53 • Medium SD 17.0 69 Medium 10.0 74 Medium Sc 7.0 7- 62 • Medium SD .21.0 8 _• 120 High • SD 25.5 9 92 High SD 17.0 10 56 -. Medium- SD 29.5 I Work Order 400942 Page 2 July 9, 2004 S .. i- 1.0 FOUNDATION DESIGN RECOMMENDATIONS The subject building pads are scheduled for residential use. It is anticipated that one- to two-story, multi-family residential buildings with associated improvements will be con- stricted. The'buildings will consist of wood-frame structures supported on a shallow slab-' on-grade post-tensioned foundation system. S 1.1 Expansion Index Tests Materials utilized for compacted fill ranged from "low" to "high" in expansion p0- tential. Samplingof the post-grading soil conditions was conducted to determine the expansion index per UBC Standard No. 18-2. That evaluation revealed "low" to "high" expansive materials on the subject building pads: Expansion index test data are presented in Table 1.1. In addition, the approximate maximum depth of fill - placed during grading for building pads 1 through 10 and-the specific seismic soil profile types ispresented in Table 1.1 Work Order 400942 Page 3 July 9,- 2004 S 1.2 Foundation Design Criteria Residential structures can be supported on conventional shallow foundations and post-tensioned slab/foundation systems. Based on the data presented in Table 1. 1, the following foundation design criteria are recommended. Allowable Bearing: 2000 lbs./sq. ft. (assuming a minimum embedment depth of 12-inches and a minimum width of 12 inches). Lateral Bearing: 250 lbs./sq. ft. per foot of depth to a maximum of 2000 lbs./sq. ft. Sliding COeffIcient: 0.35 S . .. Settlement: (Building Pads 2-10) Total= 3/4 inch Differential = 3/8 inch in 20 feet (Building Pad 1) . • • S • Total =linch Differential = V2 inch. in 20 feet The above values may be increased as allowed by Code to resist transient loads such S 5 as wind or seismic. Building Code and structural design considerations may gov-: em. Depth and reinforcement requirements should be evaluated by the structural engineer. S S S s 1.3 Post-Tensioned Foundation Systems S Design and construction of post-tensioned slab/foundation systems should be under- taken by firms experienced in the field. It is the responsibility of the foundation de-' S sign 'engineer to select the design methodology and properly design the following system for the soils conditions indicated herein. • S • The slab designer should provide deflection potential to the project architect/ struc- tural engineer for incorporation into the design of the structure. Design parameters S • relating to edge moisture variation and differential swell according to the Post- . S S . PACIFIC SOILS ENGINEERING, INC. S Work Order 400942 : Page 4 July 9,2004 : Tensioning Institute (PTI) foundation design procedures as described in 1997 UBC Sections 1814 and 1817, are presented in Table 1.2. TABLE 1.2 POST-TENSIONED FOUNDATION DESIGN CRITERIA', CENTER LIFT ' EDGE LIFT All Perimeter 12 Inch Deep 18 Inch Deep '24 Inch Deep 30 Inch Deep FOUNDATION LOT Beam Conditions 'Perimeter Beam Perimeter Beam Perimeter Beam Perimeter Beam 'CATEGORY NUMBERS Em Ym Em' Ym Em ' Ym Em Ym Em Ym (ft.) (in.) '(ft;) (in.) (ft.) (in.) (ft.) (in'.) II Fl, 10 ' 5.5 2.42 -- -- 3.50 0.43 3.5 , 0.38 3.50 0.33 III 8,9 6.0, 3.5 ' -- ' -- 3.75 0.61 ' 3.75 0.53 3.75 0.46 Footing/Slab Dimensions The footing width, depth and the structural slab-on-grade thickness shall be as specified by the structural engineer based upon the soil parameters provided by PSE and the requirements of the most current UBC. Under-Slab Requirements —Foundation Categories I, II and III A 10-mu (minimum) 'polyvinyl membrane should be placed below all slabs-on-grade within living and moisture sensitive areas. This membrane should be covered with a minimum of two (2) inches of clean sand: This membrane should, also be underlain with two (2) inches of clean sand. Slab Subgrade Moisture Requirements Foundation Category II Minimum of 120 percent of optimum moisture at least 24 hours prior to placing concrete to a depth of 12 inches. Foundation Category III Minimum of 140 percent'of optimum moisture at least 48 hours prior to placing concrete to a depth of 12 inches. Footing Embedment , ' ' .• If exterior footings adjacent to drainage swales are to exist within five (5) feet horizontally of the swale, the footing should be embedded sufficiently to assure embedment below the swale bottom is 'maintained. Footings adjacent to slopes should be embedded such that at least seven (7) feet are provided horizontally from edge of the footing to the face of the slope. • 1.4 Seismic Design Seismic design should be based on current and applicable building code require- ments and the parameters presented below in Table 1.3. The nearest known active ' fault is the Rose Canyon Fault Zone, located approximately 6.6 miles (1,0.7 km) , from the subject site. Lot specific seismic soil profile types are listed on Table 1.1. [J U PACIFIC SOILS ENGINEERING, INC. I Lis I Work Order 400942 : Page 5. July 9, 2004 . . .. . . TABLE 1.3 Seismic Design Parameters. Recommended Values Seismic Parameter (1997 UBC) Building pads Building, pads (Shallow Fill < 10 It) (Deep Fill> 10 It) Soil Profile Type Sc . SD Seismic Zone Factor z . 0.4 . 0.4 Seismic Coefficient ca 0.40 N0 . 0.44 N,., Seismic Coefficient Cv . 0.56 Nv .: 0.64 Nv Near Source Factor Na 1.0 . . 1.0 Near Source Factor Nv' . 1.0 . ' 1.0 : Seismic Source Type . B . . B 1.4.1 Seismically Induced Liquefaction or Dynamic Settlement Based upon PSE's observations during grading and due to the competency and density of the compacted fills and, supporting bedrock, the potential for seismically induced liquefaction or dynamic settlement is considered to be very low.. . . '. . . 1 .5 Moisture Barrier Slab-on-grade foundation systems should, be underlain with a moisture barrier to minimize the potential for moisture migration from the subgrade soils through the slab. It is recommended that the moisture barrier should also be placed below the garage slab. Minimally, it is recommended that the moisture barrier should consist of a 1,0-mil polyvinyl membrane. Care should be taken during construction so that , the lO-mil polyvinyl membrane is not punctured or violated. Further, it 'is recom-' mended that the polyvinyl membrane should be overlapped or glued at the joints to 'further reduce the potential of moisture and/or vapor migration. PACIFIC SOILS ENGINEERING, INC. ' , " Work Order 400942 . . . Page 6 July 9, 2004. , 1.6 Minimum Depth of Embedment For the subject site, where foundations for residential structures are to exist, in prox- imity to slopes, the footings should be embedded to satisfy the requirements pre- . . sented in Figure 1. . , FIGURE 1 , . . FACE OF . . ., . FOOTING . sFpO FACE 01' H/3 BUT NEED NOT EXCEED 40 Fr. (12.192 MAX. OE:OF SLOPE H12 BUfl\::D NOT EXCEED ISFr. (4.572 ni) MAX. . 1.7 Backyard Improvements Future improvements such as patios, slabs, pools, and perimeter screen walls can be constructed within the setback zones; however, the design and siting of all such im- provements should be reviewed by a soil engineer who is familiar with hillside grading techniques, in general, and the site-specific conditions in particular. Foot- ings for the perimêtcr walls at the top of natural slopes should be founded in compe- tent, unweathered bedrock or compacted fill. This may require deepening to extend S S through weathered zones or colluviated areas adjacent to daylight cuts. All walls should be structurally separated at twenty (20) foot, or less increments, and at per- pendicular corners. S , • ' S • • • • S • , SS S 1 .8 Retaining Wall Design • , 55 5 Retaining wall foundations may be designed with the criteria presented in Section. 112 and the following: S . S • . S S • S S • • 5 5 5 • .PACIFIC SOILS ENGINEERING, INC. '. •. ,. Co pacte5dBàékfiU ..• ,Ntive Sils. Parameter * . . .1einforcd). :.(Retáined, oündaon) . Cohesion, C (lbs./ft2) . 0 300 Internal Friction Angle, 0 (degrees). . 32 ,' 29 .. Moist Unit Weight, 5y (Ibs./ft.3) . 130 . . . 120 .5,. .5 . . . . 5,. 5 .. . .1 S , 1.8.1 Earth Pressure Coefficients The following earth pressure coefficients may be used for design of retaining • walls . .• 'S S - ' S. TABLE L5 * SELECT BACKFILL (1= 130, .b = 320) 5. S . . Rankine Equivalent Fluid Level Backfill Coefficients Pressure (psf/lin ft) Coefficient of Active Pressure Ka = 0 31 39.9 Coefficient of Passive Pressure K = 3 25 423.1P Coefficient of at Rest Pressure X. = 0.47 61.1 Rankine Equivalent Fluid 2 1 Backfill Coefficients Pressure (psi/lin ft) Coefficient of Active Pressure K = 0.47 611 Coefficient of Passive Pressure: . . . . . ' • •. • Ascending K1) (+) = 8.6 1 1119 4 Descending K (-) = 1.23 160.5 Coefficient of At Rest Pressure K0 = 0.85 110.5 S •.' S S . .5. S , 10 8 2 Retaining Wall Foundations , ,• Retaining walls should be founded on compacted fill or bedrock Founda- tion design for retaining walls should be in accordance with recommenda- tions presented in Section 1 2 S • • • • 0 . . . • 5 - : S_ . • 4 • . S S PACIFIC SOILS ENGINEERING, INC. • .. . S Work Order 400942 Page 8 . July 9,2004 . . . . . . . '. . .8.3 Other Design Considerations . Additional surcharge loads should be included in. addition to the values listed above. In addition, the design 'engineer should consider K,, when . ' retaining walls are positioned at the top of slopes and/or on the' face of slopes. Retaining wall design should consider additional surcharge loads from superjacent slopes and/or footings, where appropriate. .' . ' 1.8.4 Retaining Wall Backfill, Waterproofing and Drainage Systems Cantilever and/or restrained retaining walls should be waterproofed to ac- commodate the anticipated irrigation water to minimize water marks. Addi- tionally, retaining walls should be baçkfilled with a free draining material '(SE >20)"extending horizontally from the back of the retaining wall a minimum of one-half (0.5) the height -of the retaining wall to within twelve , ' " . (12) inches of grade (Figure 4). Backfill should be compacted to project' specifications. Native soils shall be utilized in the upper'twelve (12) inches. Drainage systems including should consist, as a minimum, of four- (4) inch diameter perforated drain line surrounded by four (4) cubic feet per lineal 'foot of three-quarters- '(3/4) inch to one- (1) inch crushed rock wrapped with a suitable filter fabric, should be provided to cantilever and, restrained retain- ing walls to relieve hydrostatic pressure. . 0, ' . ' PACIFIC SOILS ENGINEERING, INC. . Work Order 400942 July .9, 2004 I FIGURE. 2 Retaining Wall Backfill (N.T.S.) I2 IN. MIN. NATiVE OR SELECT fiACKFILL SELECT = i. BACKFILL DRAIN OR HOLES El s20 iI\ ASREQUIRED 'AND' - LDRAINN!2o 11 Page 9 ... . * ..-: OR AS MODIFIED I BYA SPECIFIC REPORT 0 4 INCH PERFORAiEDP Q,SCHEDULE.40:SDR.35:QR APPROVED.ALTERNATE,PLACE PERFORATIONS DOWN AND SURROUND WITH 4 CU. FT. PER. Fr; OF 14 INCH ROKOR APPROVED TERNATE AND MIF.I14o.FILTEFABIc..oR A PROVED EQUIVALENT OPTIONAL - PLACE.DRAIN AS SHOWN WHERE MOISTURE MIGRATION IS UNDESIRABLE Footing Inspections . . . Footing excavations for retaining walls should be observed by the project . soil engineer or his representative. . . . . . 1.9 Temporary Construction Backcuts/Shoring Parameters Construction backcuts shall be excavated as per OSHA requirements. Soil parameters for use in shoring design are as follows: Unit Weight of Soil = 130 lbs./cu.ft. 29 degrees Ka 0.35 C = 0 lbs./sq.ft. K 2.88 . . External loads that may affect the shoring include: 1) groundwater; 2) adjacent un- derground conduits and utilities;. 3) surface and sub-surface structures; 4) loading and vibration from traffic and construction equipment; and 5) loads that may be ap- plied by construction supplies and excavation soil. PACIFIC SOILS ENGINEERING, INC. Work Order 400942 Page 10 July 9, 2004 . S. 1.10 Exterior Slabs and Walkways .10.1 Subgrade Moisture S The subgrade below exterior slabs, sidewalks, driveways, patios, etc. should be moisture conditioned toa minimum of 110 percent of optimum moisture content prior to concrete placement. I .10.2 Slab Thickness Concrete flatwork and driveways should be designed utilizing four- (4) inch minimum thickness. S 1.10.3 Control Joints S Weakened plane joints should be installed on walkways at intervals of ãp- proximately eight (8) feet. Exterior slabs should be designed to withstand shrinkage of the concrete. S 1.10.4 Flatwork Reinforcement Consideration should be given to reinforcing exterior flatwork using minimum reinforcement of No. 6 Welded Wire Mesh on 6 by6 inches. 1.11 Chemical Testing Soluble sulfate testing has been conducted on the subject site. Laboratory tests in- • dicate that subgrade soils possess "negligible" to "severe" sulfate concentrations in accordance with Table 19-A-4 (UBC 1997). Accordingly, structural concrete for . . . S Buildings 1, 7 and 9 should be'designed for "severe" sulfate exposure. Building 2 . S through 6, 8 and 10 should utilize structural concrete designed.for "moderate" sul- fate exposure. Determination as to the need and specification for sulfate resistant concrete and cathodic protection for metal construction materials should be pro- vided by anengineer(s) specializing in corrosion. Test results are presented in the Appendix. • S • S • S • • . 555 PACIFIC SOILS ENGINEERING, INC. Work Order 400942 . . . Page 11 July .9, 2004 S 2.0 OTHER DESIGN AND CONSTRUCTION CONSIDERATIONS 2.1 Site Drainage . S Positive drainage away from structures should be provided and maintained. Roof, . . . pad and slope drainage should be collected. and directed away from the proposed structures to approved disposal areas. It is important that drainage be directed away from foundations. This is especially.true in patio areas and greenbelt areas. The recommended drainage patterns should-be established at the time of fine grading and maintained throughout the life of the structure. • . 2.2 Service Utility Trench Backfill • . . Service. utility trench backfill should be accomplished in accordance with the pre- vailing criteria of the City of Carlsbad. S • . • .2.3 Seismic Design . . . . S • Seismic design should be based upon current and applicable building code require- ments. • . . S • . . 5S • S S S .• PACIFIC SOILS ENGINEERING, INC. Work Order 400942. '- S Page 12 July 9, 2004 S " Conditions of the referenced reports remain applicable unless specifically superceded herein If you have any questions or should you require any additional information, please contact the under- signed. S '. Respectfully submitted, PACIFIC SOILS ENGINEERING, INC. Reviewed by: By S ANDRESBERNAL, RCE 62366 2314' Project Engineer er of otechnic , ervices B Reviewed by: C 6,2366 rn _A.. HANSON, CEG 990 A. ' Vice President ' S OF C Dist: (6) Addressee (2) City of Carlsbad, Attn: Tim Fennessy S ' ç..oFESSIo4, S (1) Davidson Reinforcement, Attn: Ron Martin A S , S , No. ' S A13/JAC/013/IAH js 400942 July 9 2004 UP. 6/30/07 S S 5 S PACIFIC SOILS ENQINEERIr.JG, INC. S S S S r PACIFIC SOILS ENGINEERING, INC. 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 0 1014 E. Cooley Dr., Suite A, Cokon, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Or., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 51st St Suite 120 Phoenix, AZ 85044 (480) 785 0043 FAX (480) 785-0851 L1 e I Mar Analytical LABORATORY REPORT Prepared For: Pacific Soils Engineering, Inc. Project: '400942G 7715 Convoy Court San Diego, CA 92111 Attention: Ron Buckley Sampled: 06/09/04 . . . . . Received: 06/17/04 .. Issued: 06/24/04 16:22 NELAP #01 IO8CA CA ELAP#1197 CSDLAC #10117 . 0 The results listed within this Laboratory Report pertain only to the samples tested in the laboratory. The analyses contained in this report were performed in accordance with the applicable certifications as noted. All soil samples are reported on a wet weight basis unless otherwise noted in the report. This Laboratory Report is confidential and is intendedfor the sole use of Del Mar Analytical and, its client. This report shall not be reproduced, except in full, without written permission from Del Mar Analytical. The Chain of Custody, I page, is included and is an integral pars of this report. . This entire report has reviewed and approved for release. . - ' SAMPLE CROSS REFERENCE LABORATORY ID CLIENT ID' 0 MATRIX ' INFI 136-01 •. -El-8 Lot Soil . . lNFl136-02 . . . El-lO Lot i , . . , . , '. Soil.' • 0 0 0 O Reviewed By: . . , . . 0 ' • '0 • - k Del Mar Analytical, Irvine Heather Bean For Anianda Cordova. Project Manager 0 . . . 0 • IA'FI.I36 . <Page I of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr. Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 Del t\4 a r 9830 So 1: a, 0: Anal yti cal 2520 E. Sunset Rd. #31, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 Pacific Soils Engineering, Inc. Project ID: 400942G 7715 Convoy Court Sampled: 06/09/04 • San Diego, CA 92111 Report Nuriiber: INFI 136 Received: 06/17/04 • Attention: Ron Buckley INORGANICS 'S Reporting Sample Dilution Date Date Data • Analyte Method Batch Limit Result Factor Extracted Analyzed Qualifiers Sample ID: INF1136-01 (EI-8 Lot 2 - Soil) •• Reporting Units: % Soluble Sulfate EPA 300.0 4F23055 0.00050 0.048 I 6/23/2004 6/23/2004 Sample ID: INFIl36-02 (El-JO Lot - Soil) -. • Reporting Units: % Soluble Sulfate EPA 300.0 4F23055 0,0050 0.24 • 10 6/23/2004 6/23/2004 • S • 0 S. Del Mar Analytical, Irvine Heather Bean For Arnanda Cordova • • • Project Manager • 0 • • S 5 0 • • The levis/IS perlilill rut/i Iii I/Ic' .vonipk's uesued in the /i'ihuiciiriri. This s,'porl v/ii's/I nol be uc'prodiiced. - • CXCC/fl ii full. Iuil/tO!uI surillen peruslissioll univ Dcl ,)'/ar Auua/t,iccuL INFJI36 <Page 2 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 S . . 1014 F. Cooley Dr., Suite A, Colton; CA 92324 (909) 370-4667 FAX (949) 370-1046 . 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 Del Mar Analytical ,unset 9830 South 5 st LSu B 0Phoenix 85044 (480) 7850043 (480) 785-0851 ( Pacific: Soils Engineering, Inc. Project.ID: 400942G : 7715 Convoy Court . . . Sampled: 06/09/04 • San Diego, CA 92111 ,Report Number: INF.1 136 . . Received: 06/17/04 Attention: Ron Buckley . . . . . . . . METHOD BLANK/QC DATA . .. • . . . . INORGANICS .. . . .. Reporting Spike Source %REC . . RPD Data Analyte . Result Limit Units Level Result %REC Limits RPD Limit Qualifiers Batch: 4F23055 Extracted: 06/23/04 . . . . . . . . Blank Analyzed: 06/23/04 (4F23055-BLK1) . . . Soluble Sulfate Nb . 0.00050 % . ., . LCS Analyzed- 0.6/23/04 (4F23055-BSI) . . . . . . .. Soluble Sulfate . 0.00974 0.00050. . 0.0101 . 96 90-110 . Matrix Spike Analyzed: 06/23/04 (4F23055-MS1) . . . . Source: INF1409-01 . . Soluble Sulfate . 0.0113 0.00050 % 0.0101 0.0018 . 94 80-120 . . Matrix Spike Dup Analyzed: 06/23/04 (4F23055-MSD1) Source: INF1409-01 . . Soluble Sulfate . 0.0118 0.00050 0.0101 0.0018 99 . 80-120 4 . 20 . • . . . 5 S . ••.• . S Del Mar Analytical, Irvine . S . S . .• Heather Bean For Amanda Cordova . S Project Manager . Tltc' ,estilis pciiciin wi/t io i/ic' sriiiipks ic'sied ii, i/it lahoriiio,t. This tv/to/i s/to/I it//i he ivpiocliicc'd. S . . . JiVE/I 36 <P age e.vic-/.ii in fit/I. i/u/toni i//ii!c'it /,eii,i,ssunt /,,ii Del ,)'/w .'(iio/ii,col. e 3 of - 2852 Altos Ave., (Moe CA 92606 (949) 261-1022 FAX (949) 261-1228 S . .. . 1014 E. Cooley Dr., Suite A, Colton CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 798-3621 Del !4 a r Analyti cal . 9830 South 51st St., Suite B-120, Phoenix, AZ 85044 (480) 785-0043 FAX (480) -3620 FAX : 785-0851 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702098 Pacific Soils Engineering, Inc. Project ID: 400942G 7715 Convoy Court . . . . . Sampled: 06/09/04 San Diego,.CA 92111 . Report Number: INFI 136 Received: 06/17/04 Attention: Ron Buckley . DATA QUALIFIERS AND DEFINITIONS .. ND Analyte NOT DETECTED at or above the reporting limit or MDL, if MDL is specified. RPD Relative Percent Difference . . . . . I . . . . . ... -. . I , . .. Del Mar Analytical, Irvine . Heather Bean For Amanda Cordova . . Project Manager .. . . . . - . The ,esults pcosclii? ott/i to the suniples ,e.sie,.i ii, the /ül,o,ato,t. This Fe/JOlt 5/1(1/I Fill! he rc'prol/llcerl. eyed)t ill fit/I. it j(IlQFlJ FFFilleli /JeFF?liSSiFtFtfiFEFF Del Mo, llflrF/lJical. fl"' 1.136 <Pi1gL' 4 0J,3> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 • 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 Del a r 9830 South 51st St., Suite B-1 20, Phoenix, AZ 85044 080) 785-0043 FAX (480) 785-0851 tv'i Analytical 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 Pacific Soils Engineering, Inc. Project ID: 400942G . 7715 Convoy Court S Sampled: 06/09/04 San Diego, CA 92111 Report Number: INFI 136 Received: 06/17/04 Attention: Ron Buckley S Certification Summary Del Mar Analytical, Irvine , Method Matrix NELAP CA EPA 3000 Soil X X S NV and NELAP provide analyte specific accreditations. Analyte spec/lc information for Del Mar Analytical may be obtained by contacting the laboratory or visiting our website at www.dmalabs.com. S S S 5 55 5 ' S •S S S S Del Mar Analytical, Irvine • : Heather Bean For Arnanda Cordova S • Project Manager S S • The re.vuli.v pc/twit on/v /0 rIte scoop/es jested in //re lcrho,ajort. This report s/ta/I ito, he reprrtcluced. - 5 except itt/h/I. ttii/ioul trilic,, pert,ii.vsitt,Ih;itt Del (br .-Ina/incal. . j11136 <Pa/,'e 5 (?1'5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949)261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 51st St., Suite 3-120, Phoenix, AZ 85044 (480) 785-0043 FAX (480) 785-0851 Del Mar'Anälytical 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 LABORATORY REPORT : Prepared For: Pacific Soils Engineering, Inc. , Project:40094213 7715 Convoy Court . San Diego, CA 92111 Attention: Ron Buckley ' Sampled: 05/14/04 Received: 05/20/04 Issued: 05/28/04 08:45 NELAP#01108CA CA ELAP #1197 CSDLAC#10117 The results listed Wit/tin this Laboratory Report pertain only to the samples tested in the laboratoty The analyses contained in this repo 11 were peiformed in accordance with the applicable certifications as noted. All soil samples are reported on a wet weight basis unless. otherwise noted in the report. This Laboratoty Report is confidential and is intended for the sole use of Del Mar Analytical and its client: This report shall not be reproduced, except in full, without written permission from Del Mar ,4na1ytiàa1. The chain of-Custody, I page, is included and is an integral part of this report. This entire report was reviewed andapproved for release. SAMPLE CROSS REFERENCE LABORATORY H) CLIENT ID MATRIX INE1297-01 El-i lot lO Soil PACiFIC SOiLs ENG. 04 Reviewed By: .. (.k) Del Mar Analytical, Irvine Heather Bean For Amanda Cordova Project Manager: INE1297 <Page 1 of 5> fl U 2652 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 ( , 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 .Del I I\/t a. r Analytical 9830 South 51 St St., Suite 6-120, Phoenix, AZ 85044, (480) 785-0043 FAX (480) 785-0851 2520 E. Sunset Rd. #3, Las'Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 Pacific Soils Engineering, Inc. Project ID: 400942G . . . . . 7715 Convoy Court . , . Sampled: 05/14/04 San Diego, CA 9211,1 .. Report Number: INE1297 . Received: 05/20/04 Attention: Ron Buckley . . . INORGANICS. Reporting " - Reporting Sample Dilution Date Date Data 'Analyie . Method Batch Limit Result Factor Extracted Analyzed Qualifiers Sample ED: INE1297-01 (El-I lot'IO - Soil) Reporting Units: % Soluble Sulfate' , EPA 300.0 . . 4E24036 00025 0.14 5 5/24/2004 5/24/2004 . . . . S Del Mar Analytical, -Irvine Heather Bean For Amanda Cordova Project Manager The results pertain on/i' to the samples 'tested in the laborato,-v. This report shall not be reproduced.. except in full, wit/iout written permission from Del Mar Analytical. , INE129 7 <Page 2 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 Del I tsv'i a r Anal ytical 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 51st St., Suite B-120, Phoenix, AZ 85044 (480) 785-0043 FAX (480) 785-0851 '2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 ' r ific' Soils Engineering, Inc. Project ID: 400942G 5'Coñvoy Court Diego, CA 92111 ReportNumber: INE1297 ention: Ron Buckley Sampled: 05/14/04 Received: 05/20/04 METHOD BLANKIQC DATA INORGANICS , '• Reporting Spike Source , %REC ' RPD Data Analyte ' , Result Limit Units Level Result %REC Limits RPD 'Limit Qualifiers Batch: 4E24036 Extracted: 05/24/04 Blank Analyzed: 05/24/04 (4E24036-BLKI) Soluble Sulfate ND 0.00050 % LCS Analyzed:' 05/24/04. (4E24036-BSI) Soluble Sulfate ' ' 0.00967 0.00050 % 0.0101 96 ' 90-1,10 Matrix Spike Analyzed: 05/24/04 (4E24036-MS1) Source:' INE1408-01 Soluble Sulfate ' 0.0106 0.00050 0.0101 ' 0.0012 93 80-120 Matrix Spike Dup Analyzed: 05124/04 (4E24036-MSDI) • Source: INE1408-01 Soluble Sulfate ', ' , 0.0105 0.00050 % 0.0101 0.0012 92 80-120 1 • 20 rj $ • Del Mar Analytical, Irvine • ' • Heather Bean For Amanda Cordova Project Manager • . • • ' The results pet-lain onit' to the samples tested in the laboratory. This report shall not be reproduced. except in full. without written permission from Del Mar AnaIvtical. INE129 7 <Page 3 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-102 FAX(949)261-1228 1014 E. Cooley Dr., Suite A, Cotton, CA 92324 (909) 370.4667 FAX (949) 370-1046 Del I Mar r n a I yti cal 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123' (858) 505-8596 FAX (858) 05-9689 983Ô South 51st St., Suite B-i 20, Phoenix, AZ 85044 (480) 785-0043 FAX (480) 785-0851 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702)798-3620 FAX (702) 798-3621 C Soils Engineering, Inc. Project ID: 400942G . Convoy Court S Sampled: 05/14/04 :ego, CA 92111 Report Number: INE1297 . . . . Received: 05/20/04 ::on: Ron Buckley DATA QUALIFIERS AND DEFINITIONS ND Analyte NOT DETECTED at or above the reporting limit or MDL, if MDL is specified. RPD Relative Percent Difference . . Del Mar Analytical,. Irvine Heather Bean For Amanda Cordova Project Manager . The results pel-iain on/v to the samples tested in the laboratoi-t'. This report shall not be reproduced. except in full. without written bermissionfroni Del Mar Analytical. INE1297 <Page 4 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261.1022 FAX (949) 261-1228 1014 F. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX(949)370-1046 ) S 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX(858)505-9689 ( Eli) e I !\4 A I t I 9830 South 51st St., Suite 8-120, Phoenix, AZ 85044 (480) 785-0043 FAX(480)785-0851 I 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702)798-3620 FAX(702) 798-3621 Pacific Soils Engineering, Inc. Project ID: 400942G 7715 Convoy Court Sampled: 05/14/04 San Diego,: CA 92111 •. Report Number: INE1297 Received: 05/20/04 Attention: Ron Buckley Certification Summary S Del Mar Analytical, Irvine S Method Matrix NELAP CA EPA 300.0 Soil •X X NV and NELAF provide analyte specific accreditations. Analyle specific information for Del Mar Analytical may be obtained by. contacting the laboratoty or visiting our webs ite at www.dmalabs.com. •• S S S S 5 .5 Del Mar Analytical, Irvine S S Heather Bean,1E'or Amanda Cordova Project Manager The results pertain on/via the samples tested in the laboratorv. This report shall not be reproduced. • except in full. without serif/en permission from Del Mar Analytical. INE129 7 <Page 5 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 51st St., Suite B-120, Phoenix, AZ 85044 (480)785-0043 FAX (480)785-0851 i1 Del'Mar Analytical 2520 E. Sunset Rd. #3, Las Vegas, 'NV 89120 (702) 798-3620 FAX (702) 798-3621 LABORATORY REPORT fl Prepared For: Pacific Soils Engineering, Inc.' Project:400942-g .7715 Convoy Court ' San Diego, CA 92111 Atteñtiôn: Brian McCormick Sampled: 05/14/04 Received: 05/27/04 Issued: 06/03/04 16:20' NELAP #01IO8CA CA ELAP #1197 CSDLAC #10117 The results listed within this Laboratory Report pertain only to the samples tested in the iaboratoiy.' The analyses contained in this report fl were performed in accordance with the applicable certifications as noted. All soil samples are reported on a wet weight basis unless otherwise noted in the report. This Laboratoiy Report is confidential and is intended for the sole use of Del Mar Analytical and its client. This report shall not be reproduced; except in full, without written permission from Del Mar Analytical. The Chain of Custody, ]page, is included and is an integral part. of this report. This entire report was reviewed and appro ved for release. .................................................................................... ' . ' SAMPLE CROSS REFERENCE LABORATORY ID ' CLIENT ID' ' ' MATRIX JNE1800-01 . ' . ' ' E12 lot Soil INE1800-02 , ' El 3 lot 7 ' ' . Soil [NEI800-03' ' El 4 lot 8 Soil INE 1800-04 ' , El 5 lot 4 ' ' ' ' , ,' Soil PACiFiC SO!LS ENG. 72OO4 ' ................. 'Reviewed By: • Del Mar Analytical, Irvine Kathleen A. Robb For Amanda Cordova Project Manager INE1800 <Page 1 of 5>' Del Mar Analytical 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 51st St., Suite B-120, Phoenix, AZ 85044 (480) 785-0043 FAX (480) 785-0851 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 l Pacific Soils Engineering, Inc. Project ID: 400942-g 7715 Convoy Court Sampled: 05/14/04 San Diego, CA 92111 Report Number: INE1800. Received: 05/27/04 Attention: Brian McCormick INORGANICS Reporting Sample Dilution Date Date Data :S Analyte Method Batch Limit Result Factor Extracted • Analyzed Qualifiers Sample ID: INE1800-01 (El 2 lot 9 - Soil) Reporting Units: % Soluble Sulfate EPA 300.0 4F0 1046 0.0050 0.37 10 6/1/2004 6/1/2004 Sample ID: INE1800-02 (El 3 lot 7 - Soil) Reporting Units: % Soluble Sulfate EPA 300.0 4F01046 0.0050 0.39 10 6/1/2004 6/1/2004 Sample ID: LNE1800-03 (El 4 lot 8 - Soil) Reporting Units: % Soluble Sulfate EPA 300.0 4F01046 0.0025 0.080 5 6/1/2004 6/1/2004 Sample ID: 1NE1800-04 (El 5 lot 4 - Soil) Reporting Units: % Soluble Sulfate EPA 300.0 4F01046. 0.00050 0033 1 6/1/2004 6/1/2004 i S S Del Mar Analytical, Irvine Kathleen A. Robb For Amanda Cordova Project Manager • • 5 • The results pertain only to the samples tested in the laboratory. This report shall not be reproduced. except in full, without written permission from Del Mar Analytical. INE1800 <Page 2 of 5> Del Mar Analytical 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite'A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858)505-8596 FAX (858)505-9689 9830 South 51St St., Suite B-i 20, Phoenix, AZ 85044 (480) 785-0043 FAX (480) 785-0851 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 acific Soils Engineering, Inc. Project ID: 400942-9 1715 Convoy Court Sampled: 05/14/04 an Diego, CA 92111 Report Number: [NE 1800 Received: 05/27/04 Attention: Brian McCormick METHOD BLANK/QC DATA S INORGANICS Reporting Spike Source %REC RPD Data Analyte Result ' Limit Units Level Result %REC Limits RPD ' Limit Qualifiers Batch: 4F01 046 Extracted: 06/01/04 ' ' • Blank Analyzed: 06/01/04 (4F01046-BLKI) ' Soluble Sulfate ND '0.00050 % LCS Analyzed: 06/01/04 (4F01046-BS1) , . .' ' ' ' Soluble Sulfate 0.0102 0.00050 % 0.0101 , 101 go-110 Matrix Spike Analyzed: 06/01/04 (4F01046-MS1) ' ' ' Source: INF0001-01 Soluble Sulfate 0.0107 0.00050 % '0.0101 0.0010 96 80-120 ' • Matrix Spike Dup Analyzed: 06/01/04 (4F01046-MSD1) Source: INF0001-01 , • Soluble Sulfate , • 0.0106 0.00050 % • 0.0101 0.0010 95 , 80-120 1 20 • • - n Del Mar Analytical, Irvine Kathleen A. Robb For Amanda Cordova Project Manager The results pertain only to the samples tested in the laboraion'. This report shall not be reproduced. except in full, without written permission from Del Mar Analytical. INE1800 <Page 3 of 5> 2852 Alton Ave. Irvine CA 92606 (949) 261-1022 FAX (949)261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 51st St., Suite B-120, Phoenix, AZ 85044 (480) 785-0043 FAX (480)785-0851 Del IVI a r-Analytical 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 Soils Engineering, Inc. Project ID: 400942-g Convoy Court . Sampled: 05/14/04 iego, CA 92111 Report Number: NE 1800 Received: 05/27/04 ion: Brian McCormick DATA QUALIFIERS AND'DEFINITIONS ND Analyte NOT DETECTED at or above the reporting limit or MDL, if MDL is specified. S RPD Relative Percent Difference S S. Del Mar Analytical, Irvine Kathleen A. Robb For Amanda Cordova Project Manager . The results pertain on/v to the samples tested in the laboratory. This report shall not be reproduced. except in full. without written penn ission front Del Mar Analytical. INE1800 Page 4 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 . . 1014 E. Cooley Dr.', Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 ) ' S 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123, (858) 505-8596 FAX (858) 505-9689 ( Del lvi Anal ytical 9830 South 51st St., Suite B-120, Phoenix, AZ 85044 (480)785-0043 FAX (480)785-0851 e Mar ii a i i ca , 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) 798-3620 FAX (702) 798-3621 Pacific Soils Engineering, Inc. Project ID: 400942-g 7715 'Convoy Court . . Sampled: 05/14/04 . San Diego, CA 92111 ' Report Number: INE 1800 . . Received: 05/27/04 , 'Attention: Brian McCormick Certification Summary . Del Mar Analytical, Irvine . . Method Matrix NELAP CA . .'• EPA 300.0 Soil X X NV and NELAP provide analyte specific accreditations. Analyte specific information for Del Mar Analytical may be obtained by contacting the 1aboratoiy or visiting our website at www.dmalabs.com. • , S ., . .. .. . S S a S S S S , , : S S . Del Mar Analytical, Irvine S •' Kathleen A. Robb For Arnaxda Cordova S Project Manager S S S The results pertain on/i' to the samples tested in the Iaboratoiy. This report shall not be reproduced. S ' except in full. without written permission from Del Mar Ana,vtical. INE1800 <Page 5 of 5> 0 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 0851 Del !'A a r Analytical 9830 So 20,h: 2520 E. Sunset Rd. #3, Las Vegas, NV : I. LABORATORY REPORT • Prepared For: Pacific Soils Engineering, Inc. Project: 400942G 7715 Convoy Court San .Diego, CA 92111 Attention: Ron Buckley . . Sampled: 05/27/04-05/28/04 . . Received: 06/11/04 . . . . . . . Issued: 06/22/04 10:31 . . NELAP#OIIO8CA CAELAP.#1197 CSDLAC#10117 . The results listed within this Laboratory Report pertain only to the samples tested in the laboratory. The analyses contained in this report were performed in accordance with the applicable certifications as noted All soil samples are reported on a wet weight basis unless otherwise noted in the report. This Laboratory Report is confidential and is intendedfor the sole use of Del Mar Analytical and its client. This report shall not be reproduced, except in full, without written permission from Del Mar Analytical. The Chain of Custody, I page, is . - included and is an integral part of this report. . S This entire report was reviewed and approvedfor release. . - : SAMPLE CROSS REFERENCE S S LABORATORY ID • • CLIENT ID • 0 MATRIX -. • INF0766-01 0 • • El-6 LOT 5 0 Soil 1NF0766-02 • El-7 LOT3 0 • • • Soil a.. Reviewed By: biij S (L..t/UL :'; Del Mar Mar Analytical, Irvine Heather Bean For Amanda Cordova Project Manager . 0 • • <I'a,i,ae 1 OJS> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Os., Suite A, Cotton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 I FAX 785-0851 [1) e Mar Analytical 9830 2520 E. Sunset Rd. #3, Las Vegas, NV 89120 (702) ;: : Pacific Soils Engineering, Inc. Project ID: 400942G 7715 Convoy Court 0 Sampled: 05/27/04-05/28/04 • San Diego, CA 92111 . Report Number:. 1NF0766 . Received: 06/11/04 Attention: Ron Buckley . . . . INORGANICS . Reporting Sample Dilution Date Date Data • Analyte . Method Batch Limit Result Factor Extracted Analyzed Qualifiers Sample ID.: INF0766-01 (El-6 LOT 5 - Soil) S . Sampled: 05/27/04 Reporting Units: % . . . Soluble Sulfate EPA 300,0 4F15045 0,0050 0.19 10 6/15/2004 6/15/2004 Sample ID: INF0766-02 (El-7 LOT 3 - Soil) . . Sampled: 05/28/04 . . . .. . . . S • Reporting Units: % . . . . . . . . . . Soluble Sulfate . EPA 300.0 4F15045 0.0050 ' 0.16 10 6/15/2004 6/15/2004 • .5 . . 0•• 5 S • . . . 5, .0 . 'S S 'S. 0' Del Mar Analytical, Irvine . . . . . . . Heather Bean For Anianda Cordova . . S. Project Manager The lxtills pt-ratio ott/i to the samples ie,cic'rl #0 the Ia/vnu,ri'. This re1,or, s/ta/I not be reproduced.' creep, iii full. iril/loul tin/len pci'nhis./unt front Del Mar .'(ito/nilcci/. •. INFO 766 <Page 2 of' _- > 2852 Alton Ave. Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 • - 1014 E. Cooley Or., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 Del Mar Anal ytical 9830 South 51st St SuIed8 120 Phoenix, AZ 85044 (480) 785-0043 FAX (480) 785-0851 ( Pacific. Soils Engineering, Inc Project ID: 400942G S 7715 Convoy Court Sampled: 05/27/04-05/28/04 • San Diego, CA 92111 Report Number INF0766 Received: 06/11/04 Attention: Ron Buckley - METHOD BLANK/QC DATA. INORGANICS S Reporting . Spike.Source %REC RPD Data Analyte . Result Limit Units Level Result %REC Limits RPD Limit Qualifiers • Batch: 4F15045 Extracted: 06/15/04 Blank Analyzed: 06/15/04 (4F15045-BLK1) . . Soluble Sulfate ND : 0.00050 . . . •. . LCS Analyzed: 06/15/04 (4F15045-BS1) . . . . Soluble Sulfate . 0.0101 . 0.00050 % 0.0101 100 907110 . Matrix Spike Analyzed:. 06/15/04 (4F15045-MSI) . . Source: 1NF0838-01 . Soluble Sulfate 0.0113 . 0.00050 0.0101 0.0014 98 80-120 - •• Matrix Spike Dup Analyzed: 06/15/04 (4F15045-MSD1) . - Source: 1NF0838-01 Soluble Sulfate - - - • - . 0.0113 0.00050 % 0.0101 0.0014 - 98 80-120 0 • 20 • S • • S - S • S. S , S • S S. S. • Del Mar Analytical, Irvine - . - S • Heather Bean For Amanda Cordova Project Manager • - - S • • S - S The tests/Is jx'rtoin ott/i to the son,p/c's tested in the /aho,awrs. Thhs report shs,h/ i:t he Ispros his-ed. • - - eves-pt ilt/l1/, without sr',j,,e,t pertnissio!t Item Del !(lOi .(noe lirstl. '"'b 0.766 <Page 3 of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 50S9689 S Suite IIi1eI Mar Analytical 5044 1480) 785-GO43 FAX (480) 785-0851 Pacific Soils Engineering, Inc. Project ID: 400942G - . .. 7715 Convoy Court . S . . Sampled: 05/27/04-05/28/04 San Diego, CA 92111 Report Number: 1NF0766 S Received: 06/11/04 Attention: Ron Buckley . . . . . . DATA QUALIFIERS AND DEFINITIONS ND Analyte NOT. DETECTED at or above the reporting limit or MDL, if MDL is specified. S •• RPD Relative Percent Difference . . . S • • •• S : S S •5 55 55 , S 5 55 S S S S S : S S Del Mar Analytical, Irvine • S • . S • • S Heather Bean For Amanda Cordova S 5 5 Project Manager • 5 5 5 5 5 '• S S The results /)eIluIilt Oil/I 11.1 I/IC SulIll/ufeS leSicil ut the /ru/)IIlaii)II. • 7/us ic/tar! shall 11111 he r'piii(/luiell.. . S 5 5 5 • • Wi ui/I. II•il/Ii)Ill lullileil peiiuur'siiinfiaiuu Del ('Jar •4ua/t'iical. . INFO 766 <Page 4 of 5> 2852 Alton Ave.,(rvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Di., Salle A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 S 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 Del Mar Analytical 9830 2520 E. Sunset Rd #31 V te B-1 20, Phoenix, AZ 85044 : ;:: FAX :i:. Paèific Soils Engineering, Inc. Project ID: 400942G 7715 Convoy Court Sampled: 05/27/04-05/28/04 San Dego, CA 92111 Report Number: . lNF0766 Received: 06/11/04 Attention: Ron Buckley Certification Summary Del Mar Analytical, Irvine Method. Matrix NELAP CA EPA:300.0 Solid . X X . . NV 6nd NELAP provide analyte specIc accreditations. Analyle specific information for Del Mar Analytical maybe obtained by contacting the laboratory or visiting our webs ite at.www.dmalabs.com. : S . .5 .5. . . 5. • Del Mar Analytical, Irvine . . Heather Bean For Amanda Cordova S Project \4anager . . . . The lesli/Is /)erlui,i On/I /0 the .swtipies ,e.oed in the /ahuruio,. This ,e,u,i s/ni/I not be ie/11Oc/ilccn/ exi.epl in /u// iiiil,oi,t rn1en /,erlll issi it /101,7 /)/ ,k/c,r 4,ujl,jila/ JA'FO.766 <Pafle 5 o/ 5> S 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261-1228 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 ( Del Mar Analytical 9830 teB 120 oenx 0043 FAX (480).785-0851 25-20 E. Sunset Rd. #3, Las Vegas, NV89120 (702) 79.8-3620 FAX (702) 798-3621 LABORATORY REPORT S Prepared For: Pacific Soils Engineering, Inc. Project: 400942G 7715 Convoy Court San Diego, CA 92111 • S Attention: Ron Buckley . . . . . Sampled: 06/09/04 Received: 06/16/04 . . . . . . . . Issued' 06/22/04 11:52. NELAP #01 1.O8CA CA ELAP #1197 CSDLAC #10117 The results listed within this Laboratory Report pertain only to the samples tested in the laboratory. The analyses contained in this report were performed in accordance with the applicable certifications as noted All soil samples are reported on a we/ weight basis unless otherwise noted in the report. This Laboratory Report is confidential and is intendedfor the sole use of Del Mar Analytical and its client. This report shall not be reproduced, except in full, without written per,nissionfroin Del Mar Analytical. The Chain of Custody, I page, is included and is an integral part of this report. This entire report was reviewed and approved for release. . . . . . . . . SAMPLE CROSS REFERENCE . . LABORATORY ID . CLIENT ID . S S MATRIX INFIO73-01 . EI-9 LOT . Soil S.. . . . . . S . S • Reviewed By: ,.r jt:{"1L . : U? ni Del Mar Analytical, Irvine Heather Bean For Amanda Cordova Project Manager IiVFlO73 <Page] of 5> 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261.1228 S 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370.1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9659 Del Mar Analytical 9830 South 51st :t Suite AZ 85044 (480) 785 0043 FAX (480) 785-0851 Pacific Soils Engineering, Inc. Project ID: 400942G • 7715 Convoy Court Sampled: 06/09/04 . San Diego, CA 92111 Report Number: INF 1073 Received: 06/16/04 Attention: Ron Buckley INORGANICS S Reporting Sample Dilution Date Date Data • Analyte Method Batch Limit Result Factor Extracted Analyzed Qualifiers Sample ID: INF1073-01 (EI-9 LOT 6 - Soil) Reporting Units: % S S Soluble Sulfate EPA 300.0 4F18042 0.0050 0.12 10 6/18/2004 6/18/2004 • S S S 5 0 I•:. S Del Mar Analytical, Irvine S. • • 0 Heather Bean For Amanda Cordova • S S S Project Manager 0 5 5 5 5 • Tile results pertuill ,.'n/r to the saurpli's tested it) the /a/.,O,alorr. This repair sholl not be reproriric'ed. except in [u/I. withoutirrinen per,nissirjn/rrnri Del Mar .4na/rtica/. 1iVI'1073 <Page 2 oJ5> 2852 Mon Ave., Irvine CA 92606 (949) 261:1022 FAX (949)261-.1228 • 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909)370- 4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South 516t 51 Su4edB.120 FAX (480) 785.0851 ( Eli) e I Mar Analytical Pacific Soils Engineering, Inc. Project ID: 400942G 7715 Convoy Court Sampled: 06/09/04 • San Diego, CA 92111 Report Number: INF1073 Received; 06/16/04 Attention: Ron Buckley - S METHOD BLANK/QC DATA ' S. INORGANICS S. Reporting . Spike Source %REC RPD Data Analyte Result 'Limit Units Level Result %REC Limits RPD. Limit Qualifiers • Batch: 4F18042 Extracted: 06/18/04 Blank Analyzed: 06/18/04 (4F18042-BLKI) .. . . . • Soluble Sulfate . ND 000050 % . . LCS Analyzed: 06/18/04 .(4F18042-BS1) . . . . : : • Soluble Sulfate 0.00979 0.00050 % 0.0101 97 90-110 I. Matrix Spike Analyzed: 06/18/04 (4F18042-MSI) . . . Source: INF1143-01 . Soluble Sulfate 0,0114 0.00050 0.0101 0.0019 94 80-120 Matrix Spike Dup Analyzed: 06/18/04 (4F18042-MSDI) . Source: INF1143-01 Soluble Sulfate . • 0.0116 0.00050 %. 0.0101 0.0019 • 96 . :80-120. 2 20 '. S.... 5.. 5 .5 . 5 • S. S • •, • .5 . S S 555 5' 5 5 5 S • S • S S S • Del Mar Analytical, Irvine • S • • • • - S • ' ' S • • Heather Bean Fo.Amanda Cordova • 5 5 5 0 • Project Manager . S • S 5 .5 .. ,• S S • • The ,.e.y,i/is pet lclii? on/i' to i/se .soiiip/e.s tested iii the Ia/',a'ato,i. S This se/sort shall not be ,e1nodiied. INFI 073 <Page 3 of 5> S • except in fill. iiilioi,t t'ii,ten pesmi.s'.cioti/s'osti Del Mar ,litii/tiieo/. 2852 Alton Ave., Irvine CA 92606 (949) 261-1022 FAX (949) 261.1228 S - 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 South Suite Vegas, o phoenix. 85044 (4o 785-0043 FAX (48d( 785-0851 Del Mar An a lyti cal Pacific Soils Engineering, Inc. Project ID: 400942G , '7715 Convoy Court : Sampled: 06/09/04 San Diego, CA 9211:1 Report Number: 1NF1073 S Received: 06116/04 Attention: Ron Buckley S DATA QUALIFIERS AND DEFINITIONS -• ND Analyte NOT DETECTED at or above the reporting limit or MDL, if MDL is specified. RPD Relative Percent Difference S S S 40 S S •55 - , 55 • -. S - 5• 55 - -- S., 0 5 Del Mar Analytical, Irvine - - Heather Bean For Amanda Cordova Project Manager - - The rent/is pertain anti- in ilk' .'wiiplvs jested hi the /abrc,u.rrt-. Tins report shall ins, be rc'/n. n/need. - - except in full. without ss',-iue,, /,er,nission frost, Del :1/ar Asu,Irtir'a/. INb 1(173 <Page 4 of .> 2852 Alton Ave., Intine CA 92606 J949)261-1022 FAX (949) 261-1228 . - 1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370-4667 FAX (949) 370-1046 9484 Chesapeake Dr., Suite 805, San Diego, CA 92123 (858) 505-8596 FAX (858) 505-9689 9830 -0851 uth Sist St., Suite B-1 20, Phoenix, AZ 85044 (480) 785-0043 FAX (480) ;: Mar. Analytical El) e I t4 a r 2520 E Sunset d Pacific Soils Engineering, Inc. Project ID: 400942G . . . 7715 Convoy Court . . .. 'Sampled: 06/09/04 San Diego, CA 92111 . . . Report Number: 1NF1073 . , - Received: 06/16/04 Attention: Ron Buckley . . . . . . . Certification Summary Del Mar Analytical, Irvine . . .. . - Method Matrix . NELAP CA EPA 300.0 Soil . X X NV and NELAP provide analytè specific accreditations. Analyte specific information for Del Mar Analytical may be.obtained by contacting the laboratory or visiting our website at www.dmalabs.com. p Del Mar Analytical, Irvine . - . . .. Heather Bean For Amanda Cordova Project Manager . . . . .. The ,es,,/ts pertain m7l.v IU IIW swap/er tested it, i/re /obotawrr'. This report s/ni/I no, be teprodined. . , - weep! info/I. tithoni 'ritten pr'rtnission trout Del A/rn '),,c,/Irtieur/ INFI 073 <Page 5 oJ .>