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HomeMy WebLinkAboutCUP 99-30; Cannon Court; Conditional Use Permit (CUP) (5)ENGmEERD»iG,INC. August 31. 2001 CoNSMCnoN TESTING & ENGINEERING, INC. SAN DIEGO, CA 2414 Vineyard Ave. Suite G Escondido, CA 92029 (760) 746-4955 (760) 746-9806 FAX RIVERSIDE, CA 490 E. Princeland Ct. Suite 7 Corona, CA 91719 (909)371-1890 (909) 371-2168 FAX VENTURA, CA 1645 Pacific Ave. Suite 105 Oxnard, CA 93033 (805) 486-6475 (805) 486-9016 FAX TRACY, CA 242 W. Larch Suite F Tracy, CA 95304 (209) 839-2890 (209) 839-2895 FAX LANCASTER, CA 42156 10th St. W. UnitK Lancaster, CA 93534 (661)726-9676 (661) 726-9676 FAX SACRAMENTO, CA 3628 Madison Ave. Suite 22 N. Highlands CA 95660 (916)331-6030 (916) 331-6037 FAX CTEJobNo. 10-3715 Mr. John Buza J. A. Buza Corporation POBox 8617 Rancho Santa Fe. Califomia 92067 Subject: Limited Phase II Environmental Site Assessment Proposed Cannon Court Development APN 223-051-12 Carlsbad, Califomia Mr. Buza: At your request, we have performed an update limited Phase II Environmental Site Assessment (ESA) at the referenced site. The specific scope of work followed is outlined in a following section of this report entitled: "Specific Scope of Technical Activities - Update Phase II ESA." In a 1998 Phase I ESA Converse Consultants (Converse, 1998) indicated that agricultural chemicals had been used at this site. Subsequently, this firm conducted a limited Phase II Environmental Site Assessment in 1999 to evaluate the site for the presence of agricultural chemicals (CTE. 1999a). Toxaphene, also known as chlorinated camphene, was discovered to be present in surface soils at that time. Discussions of the results of that sampling are presented in the following section entitled: "Background." It appears that some grading or disturbance of the surface has occurred at the site since our earlier sampling and analyses. As a consequence a second round of sampling and analyses was conducted at this site by this firm. This latest round of work was based on the Interim Guidance for Sampling Agricultural Soils promulgated by the State of Califomia Department of Toxic Substances Control (DTSC). This guideline provides for specific sampling volumes and analyses based on the size of the site and the suspected potential contaminants. Figure 1 shows the general location of the site. A list of references is presented in Appendix A. BACKGROUND During the course of our geotechnical investigation at this site (CTE, 1999b), we collected soil samples for environmental analysis from each of our seven geotechnical borings. Since the samples were intended to screen for the potential presence of agricultural chemicals the samples were composited into three samples before delivery to a State of California-certified environmental laboratory. The three soil samples sent to the laboratory were designated: B-l, B- 4; B-2. B-3; and, B-5, B-6, B-7. These designations were intended to clarify the borings from GEOTECHNICAL • ENVIRONMENTAL • CONSTRUCTION INSPECTION AND TESTING • CIVIL ENGINEERING • SURVEYING Limited Phase II Environmental Site Assessment Page 2 Proposed Cannon Court Development Carlsbad, Califomia •August 31. 2001 CTEJobNo. 10-3715 pwhich each composite sample came. The only constituent detected, using the selected analyses, was toxaphene. Detected concentrations ranged from 4,540 to 22.200 |ig/kg. .Appropriate protocols (outlined in the San Diego County, Department of Environmental Health manual) were followed to ensure the integrity of the samples. Additionally, all samples were retained in an iced cooler immediately following their collection and were delivered under chain- of-custody protocol. SPECIFIC SCOPE OF TECHNICAL ACTIVITIES - UPDATE PHASE II ESA Soil Sampling: Soil samples were collected from 15, backhoe excavated test pits at the site. The test pits were numbered consecutively Test Pit 1 through Test Pit 15 (TP-1 through TP-15). Per the DTSC guidelines the depths of sampling were generally approximately 0 to one feet below grade (fbg). However, selected samples were collected at depths of up to five fbg. Figure 2 shows the approximate locations of the samples collected. Before sampling the site was gridded into 15 sections (Figure 2). The samples were randomly collected from each of the sections under the supervision of an environmental geologist from CTE. As allowed under the DTSC guidelines soil samples were composited before being delivered to a State of California-certified environmental laboratory under appropriate chain-of- custody protocol. Samples were labeled Composite 1 and 2, Composite 3 and 4, Composite 5 and 6, Composite 7 and 8. Composite 9 and 10, Composite 11 and 12, Composite 13 and 14, and 15. These designations were intended to clarify the test pits from which each composite sample came. Sample depths were included on the sample labels. Environmental Laboratorv Analvsis: As noted, soil samples delivered to California-certified, environmental laboratory for analysis. Per the DTSC guidelines selected samples were analyzed for organo-chlorine pesticides, lead, and CAM 17 metals. Each of the composite samples was analyzed for organo-chlorine pesticides (using EPA Method 8081 A) and lead (using EPA Method 601 OB). In addition, per the DTSC guidelines four samples were collected and analyzed to determine background concentrations of CAM 17 metals. Composite samples were all collected at depths of 0 to 1 fbg. The four samples collected and analyzed for background CAM 17 metals concentrations were assessed using EPA Method 601 OB. The results of the environmental laborator}' analyses are presented on Tables 1, 2, and 3 (attached). Reporting: This summary report, documenting the scope of activities outlined above was prepared. Included are conclusions and recommendations for this site, figures, and copies of laborator}' data including Quality Assurance/Quality Control Data. F:\Projects 10-3001 to IO-4000\IO-37l5\Rpt_Update. Limited Phase II ESA.doc Limited Phase II Environmental Site Assessment Proposed Cannon Court Development Carlsbad, California August 31. 2001 Page 3 CTE .Iob No. 10-3715 RESULTS, DISCUSSION. AND CONCLUSION Laboratory Results Summarized The only constituents detected in the samples analyzed for organo-chlorine pesticides were 4. 4'- DDT and its related compounds 4,4'-DDD and 4,4'-DDE. Lead was detected in all of the analyzed samples. This was expected, as lead is a common constituent in soils. In addition, various concentrations of CAM 17 metals were also detected in the analyzed samples. Again, this was an expected result as many of these constituents are common to soils of this region. Presented in Table 1 below are the concentrations of organo-chlorine pesticides detected in the analyzed samples. Also presented are the concentrations for each of these chemicals given in the United States Region IX Environmental Protection Agency (EPA) Preliminary Remediation Goals (PRGs). The PRGs are risk-based concentrations derived from standardized equations, combining exposure information assumptions and EPA toxicity data. These guidelines are available online from the EPA website. 1 TABLE I SELECTED ENVIRONMENTAL LABORATORY ANALYSES Sample Designation Detected Organochlorine Pesticides and Concentrations Detected Region IX PRG Concentrations (Mg/kg) Composite 1 and 2 0-1" 4,4'-DDE, 25 \ig/kg 1,700 Residential/ 12,000 Industrial Composite 3 and 4 @ 0- T 4,4'-DDE, 630 ug/kg 4,4'-DDT, 430 ^g/kg 1,700 Residential/ 12,000 Industrial 1.700 Residential/ 12,000 Industrial Composite 7 and 8 (2^ 0-1" 4,4'-DDE,41 ug/kg 1,700 Residential/ 12,000 Industrial Composite 9 and 10 0- P 4.4'-DDE, 640 ^g/kg 4,4'-DDT, 590 ^g/kg 1,700 Residential/ 12,000 Industrial 1,700 Residential/ 12,000 Industriai Composite 11 and 12 0-1' 4,4'-DDE, 2,400 ug/kg 1,700 Residential/ 12,000 Industrial Composite 13 and 14 @ 0-1' 4,4'-DDE, 110 ug/kg 1,700 Residential/12,000 Industrial \5@o-r 4,4'-DDE, 220 ug/kg 4,4'-ODD, 170 ug/kg 4.4'-DDT. 640 ^g/kg 1,700 Residential/ 12,000 Industrial 2,400 Residential/ 17,000 Industrial 1,700 Residential/ 12,000 Industrial Average Concentrations of Detected Chemicals 4,4'-DDE, 581 ug/kg 4,4'-DDD. 170 ug/kg 4.4'-DDT, 553 ^g/kg 1,700 Residential/ 12,000 Industrial 2,400 Residential/ 17,000 Industrial 1.700 Residential/ 12.000 Industrial Presented in Table 2 below is a comparison of CAM 17 metals concentrations to offsite background metals concentrations from a similar geologic setting (uplifted marine terrace at a similar elevations) less than 10 miles from the site in Oceanside, Califomia. F.AProjecis 10-3001 to 10-4000\IO-3715\Rpi_Updaie. Limited Phase II ESA.doc Limited Phase II Environmental Site Assessment Proposed Cannon Court Development Carlsbad, Califomia August 31. 2001 Page 4 CTE .lob No. 10-3715 TABLE 2 CAM 17 METAL LABORATORY ANALYSES Detected CAM 17 Average Off-Site Average On-Site Maximum On-Site 1 METAL Concentration, Concentration Concentration Comparison Site (mg/kg) (mg/kg) (mg/kg) Barium 60.5 39.5 55.0 Chromium 33.9 9.4 11.4 Cobalt 7.06 4.61 5.09 Copper 24.0 3.08 4.48 Lead 6.54 3.58 6.56 Nickel 15.5 2.85 3.25 Vanadium 31.01 28.23 35.20 Zinc 21.94 8.65 10.10 Discussion As shown on the table above concentrations of 4,4'-DDD, 4,4'-DDE, 4,4'-DDT were detected in soils at this site. In all cases except one the detected concentrations were below the EPA Region IX PRGs. However, in all cases the average concentration was less than the EPA Region IX PRGs. Therefore, none of the detected organo-chlorine pesticides were determined to be Chemicals Of Potential Concem (COPC) and a risk assessment was not deemed necessary. For CAM 17 metals, the goal was to determine which, if any, metal concentrations were sufficiently different (higher) than background such that they should be included as COPCs for health risk screening purposes. On this basis none of the detected CAM 17 metals was determined to be a COPC and a risk assessment was not deemed necessary. Conclusions As indicated above, it appears that some grading has occurred at the site since our earlier sampling event. Therefore, this second round of sampling was conducted to evaluate the potential presence of organo-chlorine pesticides. Concentrations of 4,4'-DDT and its related compounds (4,4'-DDD and 4,4'-DDE) were detected in some of the composited samples. However, the average detected concentrations were below the Region IX EPA PRGs and therefore a risk assessment was not deemed to be required for this site. Concentrations of CAM 17 metals were also determined to be present in onsite soils. However, the average detected concentrations did not exceed background CAM 17 metals concentrations from a similar site in the project area. Therefore, a risk assessment was not deemed to be required for this site. We conclude that the detected concentrations of organo-chlorine pesticides do not pose an unacceptable health risk for the occupants of the proposed development. As outlined the F:\Prqiccls 10-3001 to IO-4000\IO-37l5\Rpt_Update. Limited Phase II ESA.doc Limited Phase II Environmental Site Assessment Proposed Cannon Court Development Carlsbad, Califomia August 31, 2001 Page 5 CTE Job No. 10-3715 proposed development includes a gasoline service station and motel complex. If you have any questions regarding our findings or recommendations, please do not hesitate to contact this office. The opportunity to be of service is appreciated. Respectfully submitted, CONSTRUCTION TESTING &. ENGINEERING, INC. Geotechnical Engineering Manager tathan Gdodmacher, REA II # 21037 'Registered Environmental Assessor F:\Projects 10-3001 to IO-4000\IO-37l5\Rpl_Update, Limited Phase II ESA.doc Table of Soil Sample Results, Organo-chlorine Pesticides by EPA Method 8081A CONSTRUCTION TESTING & ENGINEERING, m. Proposed Cannon Court Development, Carslbad, Califomia i»ncM«M.m(xmTmicnaNtNO>«MMii*iiNOMDimrKTiaN Sample Name»»» Dopth (feet) Dilution Factor Comp. of 1 and 2 0to1 Comp. of 3 and 4 Oto 1 50 Comp. of 5 and 6 Ofo1 Comp. of 7 and 8 Ofol 5 Comp. of 9 and 10 0to1 SO Comp. of 11 and 12 0to1 1000 Comp. of 13 and 14 0to1 10 IS 0to1 20 Units >»» Compound Alpha-BHC Gamma-BHC Beta-BHC Heptachlor Delta-BHC Aldrin Heptachlor Epoxide Endosulfan I Diekfrin 4,4'-ODE Endrin Endrin Aldejude 4,4'-DDD Endosulfan II 4,4'-DDT Endosulfan Sulfate Methoxychlor Chlofdane Toxaphene Endrin Ketone Amount Found <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 25 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 Amount Found pgM<g <250 <250 <250 <250 <250 <250 <250 <250 <260 630 <250 <250 <250 <250 430 <250 <250 <260 <250 <250 Amount Found Mg\kg <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 25 <5.0 <5.0 <5.0 <5.0 <6.0 <5.0 <5.0 <50 <100 <5.0 Amount Found pg^kg <25 <25 <25 <25 <25 <25 <25 <25 <25 41 <25 <25 <25 <25 <25 <25 <25 <250 <500 <25 Amount Found pgM<g <250 <250 <250 <250 <250 <250 <260 «:250 <250 640 <250 <250 <250 <250 590 <250 <250 <2600 <5000 <250 Amount Found pg\kg <1000 <1000 <1000 <1000 <1000 <1000 <1000 <iaoo <1000 2400 <iaoo <1000 <1000 <iaoo <1000 <1000 <1000 <10000 <20000 <1000 Amount Found pg^kg <50 <50 <50 <50 <50 <50 <50 <50 <50 110 <50 <50 <50 <50 <50 <50 <50 <500 <1000 <50 Amount Found pgM<g <100 <100 <100 <100 <100 <100 <100 <100 <100 220 <100 <100 170 <100 640 <100 <100 <iao <100 <100 ug/kg = micrograms per kilogrsm Page 1 of 3 Table of Spil Sample Results, CAM 17 Metals by EPA 6010B/7471A ING, INC Proposed Cannon Court Development, Carslbad, Caiifomia •sSSTOTW: acorcowcALWocommucTiON ewmnnwo Tvtiww Ati6)MtTCCTto^4 Simple Na'ne»»>»: 12 1 6 Depth (feel) OtD 1 2to3 2to3 2to3 QHution Fai:tor 1 1 1 1 Amount i-ound »\mount Fourxl A/nount Found AmoufTt Found Units »:•» pgHs pgVkg pgVkg pgVkg CompouiNl Ajrtimony <0.750 <0.750 <0.750 <0.750 A^reenic <0.750 <0.750 <0.750 <0.750 ^arium 55.iD 47.5 26.2 29.1 ^eryllium <0.250 <0.250 <0.250 <0.250 (^admiun\ <0.5D0 <0.500 <0.500 <0.500 Qhromlun) (Total) 6.11 8.78 11.4 11.3 qobalt 4.a3 4.51 4.73 5.09 popper 4.4,3 3.51 2.18 2.14 Lead 2.7J 2.41 2.01 2.22 Mercury <0.0{i35 <0.0835 <0.0835 <0.0835 Molybdef^um <0.250 <0.250 <0.250 <0.250 h| Ickel 2.57 3.25 2.70 2.86 ^elenium <0.750 <0.750 <0.750 <0.750 ^Hver <0.250 <0.250 <0.250 <0.250 Thallium <0.750 <0.750 <0.750 <0.750 Vanadiuni 17.2 25.7 35.2 34.8 Zinc 10.1 9.93 7.12 7.43 mg/kg » mjlltgmmt p#»r kltogiam Page 2 of 3 Table of Soil Sample Results, LEAD by EPA 6010B: NG,INC. (>COrtCtWUl.AND CONtlKUCTKM ENCINURM TClTmS ANO MmCTrajT Proposed Cannon Court Development, Carslbad, California Sannjjte Name»»»>: Dept)i (feet) Dilutixi Factor pomp. (>f 1 and 2 Comp. ot 3 and 4 Comp. of 5 and 6 Comp. of 7 and 8 Comp. of 9 and 10 Comp. of 11 and 12 Comp. of 13 and 14 Otol Ot<i1 Otol Otol Oto1 Otol Otol 1111111 Units »»> Compound Lead Amour.t Found mj|\kg 251 Amount Found mg\kg 3.^1 Amount Found mg\kg 2.59 Amount Foynd mg\kg 3.03 Amount Found mg\kg 3.17 Amount Found mg\kg 6.56 Amount Found mg\kg 3.57 Page 3 of 3 N A 1/4 1320 \7 2640 I MILES 5280 FEET SOURCE THOMAS BROTHERS MAPS 19% SAN DIEGO EOrriON JT%L CONSTRUCTION TESTING & ENGINEERING, INC. OEOTECHNIC ANI) CONSTRUCTION ENOINEERING TESTING AND INSPECTION ENGIKFERINGJNC SITE INDEX MAP PROPOSED CANNON COURT DEVELOPMENT CANNON COURT CARLSBAD, CALIFORNIA CTEJOBNO 10-3715 SITE INDEX MAP PROPOSED CANNON COURT DEVELOPMENT CANNON COURT CARLSBAD, CALIFORNIA ""^"-^ AS SHOWN SITE INDEX MAP PROPOSED CANNON COURT DEVELOPMENT CANNON COURT CARLSBAD, CALIFORNIA DATE FIGURE , 12/99 1 LEGEND Tl'-I PC t-' O > a H n Ai'l'ROXIMATi; LOCATHW OF TEST PIT APPROXIMATE LOCATION OF GRID LINES USED IN DESIGNATING SAMPLE LOCATIONS CANNON ROAD Jf^ CONSTRUCTION TESTING & ENGINEERING, INC. • GEOTECHNICAL AND CONSTRUCTION ENGINEERING TESTING AND INSPECTION 24U VINEYARD AVENUE. STEO ESCONDIDOCA ')202'l(7<«)74(,.4'I55 EXPLORATION LOCATION MAP PROPOSED CANNON COURT DEVELOPMENT CANNON COURT CARLSBAD, CALIFORNIA CTEJOBNO 10-3715 SCXLE NO SCALE ""^ 08/011"™"^ 2 APPENDIX A REFERENCES CITED REFERENCES CITED 1. Converse Consultants, Orange County, 1998, Phase I Environmental Site Assessment Report, Assessors (sic) Parcel No. 210-010-32, (6.6 acres of undeveloped property). Cannon Road at the San Diego Freeway, Carlsbad, Califomia 92008 [consultant report]. 2. Construction Testing and Engineering, Inc., 1999a, "Limited Phase II Environmental Site Assessment, Proposed Cannon Court Development, APN 223-051-12. Cannon Court, Carlsbad, Califomia" [consultant report]. 3. Constmction Testing and Engineering, Inc., 1999b, "Geotechnical Investigation, Proposed Cannon Court Development, Cannon Court, Carlsbad, Califomia" [consultant report]. 4. United States Region IX Environmental Protection Agency (EPA) Preliminary Remediation Goals (PRGs), http:/./\vwav.epa.<>ov/region09/waste/sfund/prg. F:\Prqjccts 10-3001 to IO-4000\IO-3715\Rpt_Update. Limited Phase 11 ESA.doc APPENDIX B ENVIRONMENTAL LABORATORY REPORTS INCLUDING QA/QC F:\Prqiects 10-3001 to IO-4000\IO-37l5\Rpt_Updale. Limited Phase II ESA.doc Jalscience tSj^vironmental aboratories, Inc. June 01, 2001 Steve Teel Construction Testing & Engineering 2414 Vineyard, Ste. G Escondido, CA 92075 Subject: Calscience Work Order No.: 01 -05-1245 Client Reference: 10-3715 / Cannon Court Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 5/25/2001 and analyzed in accordance with the attached chain-of-custody. The results in this analytical report are limited to the samples tested and any reproduction ofthis report must be made in its entirety. If you have any questions regarding this report, require sampling supplies or field services, or information on our analytical services, please feel free to call me at (714) 895-5494. Sincerely, Calscience Envirciinmfentai (/William H. Christensen Laboratories, Inc. Quality Assurance Manager Nick C. Adolfo Project Manager 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 ,alscience tmj^vlronmental laboratories, Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: Total Digestion Method: EPA 601 OB Project: 10-3715 / Cannon Court Page 1 of 2 Client Sample Number: Lab Sample Date Date Date Number: Matrix: Collected: Prepared: Analyzed: QC Batch ID: Comp. at 1 & 2 @ 0-1' 01-05-1245-1 Solid 05/24/01 05/29/01 05/30/01 010S29ICS8 Parameter Lead Result 2.51 RL 0.50 DF Qual Units mg/kg Comp. at 3 & 4 @ 0-1* 01-05-1245-2 Solld 05/24/01 05/29/01 05/30/01 010S29ICS8 Parameter Lead Result 3.61 RL DF 0.50 1 Qual Units mg/kg Comp. at 5 & 6 @ 0-1 • 01-05-1245-3 Solid 05/24/01 05/29/01 05/30/01 010529lcs8 Parameter Lead Result 2.59 RL DF 0.50 1 Qual Units mg/kg Comp. at 7 8> 8 @ 0-1 • 01-05-1245.4 Solid 05/24/01 05/29/01 05/30/01 010S29ICS8 Parameter Lead Result 3.03 RL DF 0.50 1 Qual Units mg/kg Comp. at 9 & 10(1 go-r 01-05-1245-5 Solld 05/24/01 05/29/01 05/30/01 010529lcs8 Parameter Lead Result 3.17 RL DF 0.50 1 Qual Units mg/kg Comp. at 11 8.12 @o-r 01-05-1245-6 Solid 05/24/01 05/29/01 05/30/01 010529ICS8 Parameter Lead Result 6.56 RL DF 0.50 1 Qual Units mg/kg Comp. at 13 & 14 @0-1' 01-05-1245-7 Solid 05/24/01 05/29/01 05/30/01 010529ICS8 Parameter Lead Result 3.57 RL DF 0.50 1 Qual Units mg/kg RL - Reporting Limii DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 , alscience Sj^vironmental laboratories, Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: Total Digestion Method: EPA 601 OB Project: 10-3715 / Cannon Court Page 2 of 2 Client Sample Number: Lab Sample Number: Matrix: Date Collected: Date Prepared: Date Analyzed: QC Batch ID: Method Blank 097-01-002-2,454 Solid N/A 05/29/01 05/30/01 010529ICS8 Parameter Result RL DF Qual Units Lead ND 0.500 1 mg/kg RL - Reporting Limit , DF - Dilution Factor , Qua! - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 r alscience Sjivironmental ^ aboratories. Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: Total Digestion Method: EPA6010B/EPA7471A Project: 10-3715 / Cannon Court Page 1 of 2 Client Sample Number: Lab Sample Date Date Date Number: Collected: Matrix: Prepared Analyzed: QC Batch ID: i5@o-r 01-05-1245-8 05/24/01 Solid 05/29/01 05/30/01 010529ICS8 Comment(s): Mercury was analyzed on 5/29/2001 5:58:52 PM with batch 010529lcs1 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Antimony ND 0.750 1 mg/kg Mercury ND 0.0835 1 mg/kg Arsenic ND 0.750 1 mg/kg Molybdenum ND 0.250 1 mg/kg Barium 55.0 0.5 1 mg/kg Nickel 2.57 0.25 1 mg/kg Beryllium ND 0.250 1 mg/kg Selenium ND 0.750 1 mg/kg Cadmium ND 0.500 1 mg/kg Silver ND 0.250 1 mg/kg Chromium (Total) 6.11 0.25 1 mg/kg Thallium ND 0.750 1 mg/kg Cobalt 4.09 0.25 1 mg/kg Vanadium 17.2 0.2 1 ' mg/kg Copper 4.48 0.50 1 mg/kg Zinc 10.1 1.0 1 mg/kg Lead 2.79 0.50 1 mg/kg - 12 @ 2-5' 01-05-1245-9 05/24/01 Solid 05/29/01 05/30/01 010529ICS8 Comment(s): Mercury was analyzed on 5/29/2001 6:01:50 PM with batch 010529lcs1 Parameter Result Ek DF Qual Units Parameter Result RL DF Qual Units Antimony ND 0.750 1 mg/kg Mercury ND 0.0835 1 mg/kg Arsenic ND 0.750 1 mg/kg Molybdenum ND 0.250 1 mg/kg Barium 47.5 0.5 1 mg/kg Nickel 3.25 0.25 1 mg/kg Beryllium ND 0.250 1 mg/kg Selenium ND 0.750 1 mg/kg Cadmium ND 0.500 1 mg/kg Silver ND 0.250 1 mg/kg Chromium (Total) 8.78 0.25 1 mg/kg Thallium ND 0.750 1 mg/kg Cobalt 4.51 0.25 1 mg/kg Vanadium 25.7 0.2 1 mg/kg Copper 3.51 0.50 1 mg/kg Zinc 9.93 1.00 1 mg/kg Lead 2.41 0.50 1 mg/kg 1 @ 2-3' 01-05-1245-10 05/24/01 Solid 05/29/01 05/30/01 010529ICS8 Comment(s): Mercury was analyzed on 5/29/2001 6:04:49 PM with batch 010529lcs1 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Antimony ND 0.750 1 mg/kg Mercury ND 0.0835 1 mg/kg Arsenic ND 0.750 1 mg/kg Molybdenum ND 0.250 1 mg/kg Barium 26.2 0.5 1 mg/kg Nickel 2.70 0.25 1 mg/kg Beryllium ND 0.250 1 mg/kg Selenium ND 0.750 1 mg/kg Cadmium ND 0.500 1 mg/kg Silver ND 0.250 1 mg/kg Chromium (Total) 11.4 0.2 1 mg/kg Thallium ND 0.750 1 mg/kg Cobalt 4.73 0.25 1 mg/kg Vanadium 35.2 0.2 1 mg/kg Copper 2.18 0.50 1 mg/kg Zinc 7.12 1.00 1 mg/kg Lead 2.01 0.50 1 mg/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 ,alscience Sj^vironmental laboratories. Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: Total Digestion Method: EPA 6010B/EPA7471A Project: 10-3715 / Cannon Court Page 2 of 2 Client Sample Number: Lab Sample Date Date Date Number: Collected: Matrix: Prepared Analyzed QC Batch ID: 6 @ 2-3' 01-05-1245-11 05/24/01 Solid 05/29/01 05/30/01 010529lcs8 Comment(s): Mercury was analyzed on 5/29/2001 6:07:49 PM with batch 010529lcs1 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Antimony ND 0.750 1 mg/kg Mercury ND 0.0835 1 mg/kg Arsenic ND 0.750 1 mg/kg Molybdenum ND 0.250 1 mg/kg Barium 29.1 0.5 1 mg/kg Nickel 2.86 0.25 1 mg/kg Beryllium ND 0.250 1 mg/kg Selenium ND 0.750 1 mg/kg Cadmium ND 0.500 1 mg/kg Silver ND 0.250 1 mg/kg Chromium (Total) 11.3 0.2 1 mg/kg Thallium ND 0.750 1 mg/kg Cobalt 5.09 0.25 1 mg/kg Vanadium 34.8 0.2 1 mg/kg Copper 2.14 0.50 1 mg/kg Zinc 7.43 1.00 1 mg/kg Lead 2.22 0.50 1 mg/kg Method Blank 099-04-007-978 N/A Solid 05/29/01 05/29/01 010529ICS1 Parameter Result RL DF Qual Units Mercury ND 0.0835 1 mg/kg Method Blank 097-01-002-2,454 N/A Solid 05/29/01 05/30/01 010529ICS8 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Antimony ND 0.750 1 mg/kg Molybdenum ND 0.250 1 mg/kg Arsenic ND 0.750 1 mg/kg Nickel ND 0.250 1 mg/kg Barium ND 0.500 1 mg/kg Selenium ND 0.750 1 mg/kg Beryllium ND 0.250 1 mg/kg Silver ND 0.250 1 mg/kg Cadmium ND 0.500 1 mg/kg Thallium ND 0.750 1 mg/kg Chromium (Total) ND 0.250 1 mg/kg Vanadium ND 0.250 1 mg/kg Cobalt ND 0.250 1 mg/kg Zinc ND 1.00 1 mg/kg Copper ND 0.500 1 mg/kg Lead ND 0.500 1 mg/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 ^alscience tmnvironmental laboratories. Inc. ANALYTICAL REPORT Construction Testing Se Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: EPA 3545 Method: EPA 8081A Project: 10-3715 / Cannon Court Page 1 of 5 Client Sample Number: Lab Sample Date Date Date Number: Collected: Matrix: Prepared: Analyzed: QC Batch ID: Comp. atl 8i2@0-1' 01-05-1245-1 05/24/01 Solid 05/29/01 05/29/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 5.0 1 ug/kg Endrin ND 5.0 1 ug/kg Gamma-BHC ND 5.0 1 ug/kg Endrin Aldehyde ND 5.0 1 ug/kg Beta-BHC ND 5.0 1 ug/kg 4,4'-DDD ND 5.0 1 ug/kg Heptachlor ND 5.0 1 ug/kg Endosulfan II ND 5.0 1 ug/kg Delta-BHC ND 5.0 1 ug/kg 4,4-DDT ND 5.0 1 ug/kg Aldrin ND 5.0 1 ug/kg Endosulfan Sulfate ND 5.0 1 ug/kg Heptachlor Epoxide ND 5.0 1 ug/kg Methoxychlor ND 5.0 1 ug/kg Endosulfan 1 ND 5.0 1 ug/kg Chlordane ND 50 1 ug/kg Dieldrin ND 5.0 1 ug/kg Toxaphene ND 100 1 ug/kg 4,4'-DDE 25 5 1 ug/kg Endrin Ketone ND 5.0 1 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 102 50-130 2,4,5,6-Tetrachloro-m-Xylene 79 50-130 Comp. at 3 8i 4 @ 0-1' 01-05-1245-2 05/24/01 Solid 05/29/01 05/30/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 250 50 ug/kg Endrin ND 250 50 ug/kg Gamma-BHC ND 250 50 ug/kg Endrin Aldehyde ND 250 50 ug/kg Beta-BHC ND 250 50 ug/kg 4,4'-DDD ND 250 50 ug/kg Heptachlor ND 250 50 ug/kg Endosulfan II ND 250 50 ug/kg Delta-BHC ND 250 50 ug/kg 4,4'-DDT 430 250 50 ug/kg Aldrin ND 250 50 ug/kg Endosulfan Sulfate ND 250 50 ug/kg Heptachlor Epoxide ND 250 50 ug/kg Methoxychlor ND 250 50 ug/kg Endosulfan 1 ND 250 50 ug/kg Chlordane ND 2500 50 ug/kg Dieldrin ND 250 50 ug/kg Toxaphene ND 5000 50 ug/kg 4.4'-DDE 630 250 50 ug/kg Endrin Ketone ND 250 50 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 96 50-130 2,4,5,6-Tetrachloro-m-Xylene 67 50-130 RL - Reporting Limit . DF - Dilufion Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 , alscience tinvironmental ^ aboratories, Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: EPA 3545 Method: EPA 8081A Project: 10-3715 / Cannon Court Page 2 of 5 Client Sample Number: Lab Sample Date Date Date Number: Collected: Matrix: Prepared: Analyzed: QC Batch ID: Comp. atS&6@0-1' 01-05-1245-3 05/24/01 Solld 05/29/01 05/29/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 5.0 1 ug/kg Endrin ND 5.0 1 ug/kg Gamma-BHC ND 5.0 1 ug/kg Endrin Aldehyde ND 5.0 1 ug/kg Beta-BHC ND 5.0 1 ug/kg 4,4'-DDD ND 5.0 1 ug/kg Heptachlor ND 5.0 1 ug/kg Endosulfan II ND 5.0 1 ug/kg Delta-BHC ND 5.0 1 ug/kg 4,4'-DDT ND 5.0 1 ug/kg Aldrin ND 5.0 1 ug/kg Endosulfan Sulfate ND 5.0 1 ug/kg Heptachlor Epoxide ND 5.0 1 ug/kg Methoxychlor ND 5.0 1 ug/kg Endosulfan 1 ND 5.0 1 ug/kg Chlordane ND 50 1 ug/kg Dieldrin ND 5.0 1 ug/kg Toxaphene ND 100 1 ug/kg 4,4'-DDE ND 5.0 1 ug/kg Endrin Ketone ND 5.0 1 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 103 50-130 2,4,5,6-Tetrachloro-m-Xylene 73 50-130 Comp. at 7 818 @ 0-1' 01-05-1245-4 05/24/01 Solid 05/29/01 05/30/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC Gamma-BHC Beta-BHC Heptachlor Delta-BHC Aldrin Heptachlor Epoxide Endosulfan I Dieldrin 4,4'-DDE Surrogates: Decachlorobiphenyl ND ND ND ND ND ND ND ND ND 41 REC (%) 107 25 25 25 25 25 25 25 25 25 25 Control Limits 50-130 ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Endrin Endrin Aldehyde 4,4'-DDD Endosulfan II 4,4'-DDT Endosulfan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone ND ND ND ND ND ND ND ND ND ND Qual Surrogates: REC (%) 2,4,5,6-Tetrachloro-m-Xylene 73 25 25 25 25 25 25 25 250 500 25 Control Limits 50-130 ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual RL - Reporting Limit DF - Dilution Faclor Qual - Qualifiers 7440 Lincoln Way. Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 ^alscience environmental laboratories. Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: EPA 3545 Method: EPA 8081A Project: 10-3715 / Cannon Court Page 3 of 5 Client Sample Number: Lab Sample Date Date Date Number: Collected: Matrix: Prepared: Analyzed: QC Batch ID: Comp. at 9 & 10 @ 0-1' 01-05-1245-5 05/24/01 Solid 05/29/01 05/30/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 250 50 ug/kg Endrin ND 250 50 ug/kg Gamma-BHC ND 250 50 ug/kg Endrin Aldehyde ND 250 50 ug/kg Beta-BHC ND 250 50 ug/kg 4,4'-DDD ND 250 50 ug/kg Heptachlor ND 250 50 ug/kg Endosulfan II ND 250 50 ug/kg Delta-BHC ND 250 50 ug/kg 4,4'-DDT 590 250 50 ug/kg Aldrin ND 250 50 ug/kg Endosulfan Sulfate ND 250 50 ug/kg Heptachlor Epoxide ND 250 50 ug/kg Methoxychlor ND 250 50 ug/kg Endosulfan 1 ND 250 50 ug/kg Chlordane ND 2500 50 ug/kg Dieldrin ND 250 50 ug/kg Toxaphene ND 5000 50 ug/kg 4,4'-DDE 640 250 50 ug/kg Endrin Ketone ND 250 50 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 115 50-130 2,4,5,6-Tetrachloro-m-Xylene 50 50-130 Comp. at 11 & 12 @ 0-1' 01-05-1245-6 05/24/01 Solid 05/29/01 05/30/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 1000 200 ug/kg Endrin ND 1000 200 ug/kg Gamma-BHC ND 1000 200 ug/kg Endrin Aldehyde ND 1000 200 ug/kg Beta-BHC ND 1000 200 ug/kg 4,4'-DDD ND 1000 200 ug/kg Heptachlor ND 1000 200 ug/kg Endosulfan II ND 1000 200 ug/kg Delta-BHC ND 1000 200 ug/kg 4,4'-DDT ND 1000 200 ug/kg Aldrin ND 1000 200 ug/kg Endosulfan Sulfate ND 1000 200 ug/kg Heptachlor Epoxide ND 1000 200 ug/kg Methoxychlor ND 1000 200 ug/kg Endosulfan 1 ND 1000 200 ug/kg Chlordane ND 10000 200 ug/kg Dieldrin ND 1000 200 ug/kg Toxaphene ND 20000 200 ug/kg 4,4'-DDE 2400 1000 200 ug/kg Endrin Ketone ND 1000 200 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 100 50-130 2,4,5,6-Tetrachloro-m-Xylene 69 50-130 RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 ^alscience Environmental laboratories. Inc. ANALYTICAL REPORT Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: EPA 3545 Method: EPA 8081A Project: 10-3715 / Cannon Court Page 4 of 5 Client Sample Number; Lab Sample Date Date Date Number: Collected: Matrix: Prepared: Analyzed: QC Batch ID: Comp. at 13 & 14 @ 0-1' 01-05-1245-7 05/24/01 Solid 05/29/01 05/30/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 50 10 ug/kg Endrin ND 50 10 ug/kg Gamma-BHC ND 50 10 ug/kg Endrin Aldehyde ND 50 10 ug/kg Beta-BHC ND 50 10 ug/kg 4,4'-DDD ND 50 10 ug/kg Heptachlor ND 50 10 ug/kg Endosulfan II ND 50 10 ug/kg Delta-BHC ND 50 10 ug/kg 4,4'-DDT ND 50 10 ug/kg Aldrin ND 50 10 ug/kg Endosulfan Sulfate ND 50 10 ug/kg Heptachlor Epoxide ND 50 10 ug/kg Methoxychlor ND 50 10 ug/kg Endosulfan 1 ND 50 10 ug/kg Chlordane ND 500 10 ug/kg Dieldrin ND 50 10 ug/kg Toxaphene ND 1000 10 ug/kg 4,4'-DDE 110 50 10 ug/kg Endrin Ketone ND 50 10 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 107 50-130 2,4,5,6-Tetrachloro-m-Xylene 61 50-130 15 @ 0-1' 01-05-1245-8 05/24/01 Solid 05/29/01 05/30/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 100 20 ug/kg Endrin ND 100 20 ug/kg Gamma-BHC ND 100 20 ug/kg Endrin Aldehyde ND 100 20 ug/kg Beta-BHC ND 100 20 ug/kg 4,4'-DDD 170 100 20 ug/kg Heptachlor ND 100 20 ug/kg Endosulfan II ND 100 20 ug/kg Delta-BHC ND 100 20 ug/kg 4,4'-DDT 640 100 20 ug/kg Aldrin ND 100 20 ug/kg Endosulfan Sulfate ND 100 20 ug/kg Heptachlor Epoxide ND 100 20 ug/kg Methoxychlor ND 100 20 ug/kg Endosulfan 1 ND 100 20 ug/kg Chlordane ND 1000 20 ug/kg Dieldrin ND 100 20 ug/kg Toxaphene ND 2000 20 ug/kg 4,4'-DDE 220 100 20 ug/kg Endrin Ketone ND 100 20 ug/kg Surrogates: REC (%) Confrol Qual Surrogates: REC (%) Control Qual REC (%) Limits Limits Decachlorobiphenyl 117 50-130 2,4,5,6-Tetrachloro-m-Xylene 60 50-130 RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 ^alscience tinvironmental 1^ aboratories. Inc. ANALYTICAL REPORT Construction Testing & Engineering 2414 Vineyard, Ste. G Escondido, CA 92075 Date Received: Work Order No: Preparation: Method: 05/25/01 01-05-1245 EPA 3545 EPA 8081A Project: 10-3715 / Cannon Court Page 5 of 5 Client Sample Number: Lab Sample Number: Date Collected: Matrix: Date Prepared: Date Analyzed: QC Batch ID: Method Blank 095-01-014-2,153 N/A Solid 05/29/01 05/29/01 0105293 Parameter Result RL DF Qual Units Parameter Result RL DF Qual Units Alpha-BHC ND 5.0 1 ug/kg Endrin ND 5.0 1 ug/kg Gamma-BHC ND 5.0 1 ug/kg Endrin Aldehyde ND 5.0 1 ug/kg Beta-BHC ND 5.0 1 ug/kg 4,4'-DDD ND 5.0 1 ug/kg Heptachlor ND 5.0 1 ug/kg Endosulfan II ND 5.0 1 ug/kg Delta-BHC ND 5.0 1 ug/kg 4,4'-DDT ND 5.0 1 ug/kg Aldrin ND 5.0 1 ug/kg Endosulfan Sulfate ND 5.0 1 ug/kg Heptachlor Epoxide ND 5.0 1 ug/kg Methoxychlor ND 5.0 1 ug/kg Endosulfan 1 ND 5.0 1 ug/kg Chlordane ND 50 1 ug/kg Dieldrin ND 5.0 1 ug/kg Toxaphene ND 100 1 ug/kg 4,4'-DDE ND 5.0 1 ug/kg Endrin Ketone ND 5.0 1 ug/kg Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 110 50-130 2,4,5,6-Tetrachloro-m-Xylene 92 50-130 RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 r alscience Environmental aboratories. Inc. Quality Control - Spike/Spike Duplicate Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: Total Digestion Method: EPA 601 OB Project: 10-3715 / Cannon Court Spiked Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Numtier Comp. at7&8@ 0-1' Solid ICP 3300 05/29/01 05/30/01 052901 msS Parameter MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers Antimony 18 19 50-115 4 0-20 3 Arsenic 91 78 75-125 15 0-20 Barium 98 85 75-125 6 0-20 Beryllium 95 88 75-125 7 0-20 Cadmium 95 89 75-125 6 0-20 Chromium (Total) 99 90 75-125 7 0-20 Cobalt 98 91 75-125 6 0-20 Copper 94 89 75-125 4 0-20 Lead 92 84 75-125 8 0-20 Molybdenum 79 72 75-125 9 0-20 3 Nickel 97 91 75-125 6 0-20 Selenium 81 64 75-125 24 0-20 3,4 Silver 95 89 75-125 7 0-20 Thallium 87 81 75-125 8 0-20 Vanadium 96 82 75-125 9 0-20 Zinc 98 90 75-125 5 0-20 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL (714)895-5494 • FAX: (714) 894-7501 ^alscience Environmental ^ aboratories. Inc. Quaiity Control - Spike/Spike Duplicate Construction Testing & Engineering 2414 Vineyard, Ste. G Escondido, CA 92075 Project: 10-3715 / Cannon Court Date Received: Work Order No: Preparation: Method: 05/25/01 01-05-1245 Total Digestion EPA 7471A Spiked Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number 01-05-1251-10 Solid Mercury 05/29/01 05/29/01 052901 msl Parameter MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers Mercury 133 116 76-136 14 0-16 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL (714)895-5494 • FAX: (714) 894-7501 alscience nvironmental aboratories. Inc. Quality Control - LCS/LCS Duplicate Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No 01-05-1245 Escondido, CA 92075 Preparation: Total Digestion Method: EPA 601 OB Project: 10-3715 / Cannon Court Date Date LCS/LCSD Batch LCS Sample Number Matrix Instrument Prepared Analyzed Number 097-01-002-2,454 Solid ICP 3300 05/29/01 05/30/01 010S29ICS8 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers Antimony 85 89 80-120 4 0-20 Arsenic 82 86 80-120 6 0-20 Barium 98 98 80-120 1 0-20 Beryllium 94 96 80-120 3 0-20 Cadmium 98 101 80-120 3 0-20 Chromium (Total) 98 99 80-120 1 0-20 Cobalt 100 103 80-120 3 0-20 Copper 97 99 80-120 2 0-20 Lead 94 97 80-120 3 0-20 Molybdenum 95 99 80-120 4 0-20 Nickel 99 100 80-120 1 0-20 Selenium 94 96 80-120 2 0-20 Silver 97 97 80-120 1 0-20 Thallium 96 98 80-120 2 0-20 Vanadium 94 98 80-120 4 0-20 Zinc 101 104 80-120 3 0-20 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 ,alscience EnWronmenfa/ Quality Control - Laboratory Control Sample /laboratories, Inc. Construction Testing & Engineering 2414 Vineyard, Ste. G Escondido, CA 92075 Project: 10-3715 / Cannon Court Date Received: Work Order No: Preparation: Method: 05/25/01 01-05-1245 Total Digestion EPA 7471A LCS Sample Numtjer Matrix Instrument Date Analyzed Lab File ID LCS Batch Number 099-04-007-978 Solid Mercury 05/29/01 010529 1 010529ICS1 Parameter Cone Added Cone Recovered %Rec %Rec CL Qualifiers Mercury 0.835 0.917 110 82-124 7440 Lincoln Way. Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 alscience nvironmental aboratories. Inc. Quality Control - LCS/LCS Duplicate Construction Testing & Engineering Date Received: 05/25/01 2414 Vineyard, Ste. G Work Order No: 01-05-1245 Escondido, CA 92075 Preparation: EPA 3545 Method: EPA 8081A Project: 10-3715 / Cannon Court Date Date LCS/LCSD Batch LCS Sample Number Matrix Instrument Prepared Analyzed Number 095-01-014-2,153 Solid GC 16 05/29/01 05/30/01 0105293 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers Gamma-BHC 71 71 50-135 0 0-25 Heptachlor 77 75 50-135 2 0-25 Endosulfan 1 73 72 50-135 2 0-25 Dieldrin 71 71 50-135 0 0-25 Endrin 68 68 50-135 0 0-25 4,4'-DDT 77 76 50-135 1 0-25 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL (714)895-5494 • FAX: (714) 894-7501 ^c/ence GLOSSARY OF TERMS AND QUALIFIERS Environmental laboratories. Inc. Work Order Number: 01-05-1245 Qualifier Definition 3 Spike or Spike Duplicate compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. 4 The MS/MSD RPD was out of control due to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. ND Not detected at indicated reporting limit. 7440 Lincoln Way, Garden Grove. CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 m l/iNC CHAIN-OF-CU UVBGRATORIESflNC 148 So. Vinewood Stiret. Escondido, CA 92029-1921 (760) 735-3208 FAX (760) 735-2469 DY RECORD MOL: Date: Page. of Clieni: r Site Addres.s: ProjectNo.: Sampler/Project Manager:. Analysis Requested Turnaround Requested • Onsite/24-48 hrs. Offsite • Other Sample ID Date ^~TT- Time Location 7 " > 'i 221. ^-1 V / ? " n'7iL £1. V > Comments: , i . i , I ^ i / f Comments: , i . i , I ^ i / f Sample Receipt Intact: (JT) No Seal Intact: . Yes No / N7^ Cold: (@ No 5^/AJJleceived on site) Relinqti^^ (Sj^tj^) Receyed by: (Signature) Time: Sample Receipt Intact: (JT) No Seal Intact: . Yes No / N7^ Cold: (@ No 5^/AJJleceived on site) A^edved by: (Signature) • V,^ Date: Sample Receipt Intact: (JT) No Seal Intact: . Yes No / N7^ Cold: (@ No 5^/AJJleceived on site) R< ^jljjfnshed by: (Signature) ^ ^ ReUred:bv:l:Signaty»^, f Date/ Tinie: ^ 16-^^ Sample Receipt Intact: (JT) No Seal Intact: . Yes No / N7^ Cold: (@ No 5^/AJJleceived on site) ~4 nature constitutes authorisation to proceed with analysis and acceptance of condilions on back. Sample Receipt Intact: (JT) No Seal Intact: . Yes No / N7^ Cold: (@ No 5^/AJJleceived on site)