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HomeMy WebLinkAboutCT 02-07; EMERALD POINT ESTATES; SUPPLEMENTAL AGRICULTURAL CHEMICAL RESIDUE SURVEY; 2005-02-2811 I I I I I I I I I I I I I I I I I I -,.----.~-.--.--._-_._-.----_._--.. ' ... --. ~ ... -" ./".- ,/ SUPPLEMENTAL AGRICULTURAL CHEMICAL RESIDUE SURVEY· EMERALD POINTE ESTATES CITY OF CARLSBAD, SAN DIEGO COUNTY, CALIFORNIA 92009 FOR RWR HOMES, INC •. 2710 LOKER AVENUE WEST, SUITE 30 CARLSBAD, CALIFORNIA 92008 ~ .. r: " W.O. E4706-SC • FEBRUARY 28, 2005 RECEIVED JUN 23 z005 ENGINEERiNG DEPARTMENT Geotechnical • Geologic • Environmental I I I I I I I I I I I I I I I I I I· I SUPPLEMENTAL AGRICULTURAL CHEMICAL RESIDUE SURVEY EMERALD POINTE ESTATES CITY OF CARLSBAD, SAN DIEGO COUNTY, CALIFORNIA 92009 FOR RWR HOMES, INC. 2710 LOKER AVENUE WEST, SUITE 30 CARLSBAD, CALIFORNIA 92008 W.O. E4706-SC FEBRUARY 28, 2005 I I I I I I I I I I I I I I I I I I I Geotechnical • Geologic • Environmental 5741 PalmerWay· Carlsbad,California92008 • (760)438-3155 • FAX(760)931-0915 February 28, 2005 RWR Homes, Inc. 2710 Loker Avenue West, Suite 350 Carlsbad, California 92008 Attention: Mr. Don Maclean 1\ W.O. E4706-SC. Subject: Supplemental Agricultural Chemical Residue .Survey, Emerald Pointe Estates, City of Carlsbad, San Diego County, California 92009 Dear Mr. Maclean: At your request and authorization, GeoSoils, Inc. (GSI), has prepared this report for a supplemental agricultural residue survey on the subject property in the City of Carlsbad, San Diego County, California. The general area of the site is presented on the Site Map, Figure 1. As required by the City of Carlsbad's Standard Agricultural Area Mitigation Condition (for agricultural sites), the purpose of the survey was to evaluate the historical agricultural use(s) of the subject property, addressing the presence of restricted agricultural residues on the subject site. As part of the mitigation condition, a detailed survey report should be presented to the County of San Diego Department of Environmental Health (DEH), Site Assessment and Voluntary Assistance Program NAP) for review and comment. The scope of work was based upon our knowledge of the property (GSI, 1998b), our past experiel1ce with similar land use changes in the City of Carlsbad, information provided by the DEH on similar projects in the vicinity, as well as information provided in the County Site Assessment and Mitigation (SAM) Manual regarding pesticide residue investigations, and requirements of the California Regional Water Quality Control Board (RWQCB). Soil samples were collected to supplement the existing limited chemical residue survey (GSI, 1998b). This report is also based upon the available data that restricted agricultural chemicals utilized on the site were applied properly to the farmland, under a use permit by the San Diego County Department of Agriculture. . BACKGROUND Based upon our information provided in the referenced Phase I Environmental Site Assessment (ESA) report on historical land use (GSI, 1998b), the subject property was utilized for agricultural purposes from at least the early 1940s until sometime in the 1960s. Based upon our previous limited chemi~al testing of near surface soils onsite (GSI, 1998), detectable concentrations of restricted agricultural residues exist within the subject site. I I I I I I I I I I I I I I I I I I I Base Map: TOPO!® ©2003 National Geographic, USGS Encinitas Quadrangle, California-San Diego Co., 7.5-Minute, dated 1997, current 1999. Base Map: The Thomas' Guide, San Diego Co. Street Guide and Directory, 2005 Edition, by Thomas Bros. Maps, page 1127. Reproduced with permission granted by Thomas Bros. Maps. This map is copyrighted by Thomas Bros. Maps. It is unlawful to copy or reproduce ali or any part thereof, whether for personal or resale, without permission. All rights Reserved N LOCATION AND SCALES APPROXIMATE ~, 4~~ .. ~.~ '-, -......... ~-.,p*l.i·~ ... W.O. E4706-SC . ~ --'~ . "~.' ./. ' .. -~ .~.~ .. _"-_ .... ,- SITE LOCATION MAP Fiaure 1 I I I I I I I I I I I I I I I I I I I HYDROGEOLOGIC SETTING The property lies within the Encinas Hydrologic Area (HA 904.40) of the Carlsbad Hydrologic Unit (HU 904.00) within the San Diego Region (State RWQCB, 1994). Carlsbad falls within Region 9 (San Diego) of the State Regional Water. Quality Control Board (RWQCB). Existing beneficial uses of groundwater within this' HA is excepted from municipal and domestic supply. No beneficial or potential beneficial use of groundwater is reported. Overall, the regional groundwater gradient is estimated to be in a westerly direction; however, local groundwater flow may be in a northerly direction, following local natural drainages. Surface signs of water wells were not observed onsite during our site reconnaissance. Regional groundwater maps (State of California, 1967) indicate no permitted water wells exist within the site. There are, however, two wells located west ofthe property, In Canyon de las Encinas. Measured groundwater depths were reported to be on the order of 25 to 75 feet. Groundwater was not encounterecf in any of the excavations completed as a part of the. previous study (Geotechnical Exploration, 1998). Data provided in our previous geotechnical report (GSI, 1998a) during excavation of two large diameter borings to depths of 26 and 58 feet, reported no groundwater encountered. "Perched" groundwater, where relatively impermeable fill and/or sediments underlie relatively permeable fill and/or sediments filled with water may be encountered at shallower depths onsite, especially during the rainy season. SCOPE OF WORK As directed in the City of Carlsbad's Standard Agricultural Area Mitigation Condition, a testing and analysiS report shall be prepared and submitted to the DEH for review and comment. The DEH has generated a list of 18 Hazardous Agricultural Substances, including organochlorine and organophosphorus pesticides and herbicides (Le., restricted agricultural chemicals), which are (and have been) commonly used in the agricultural industry throughout California. The residue survey consisted of random soil samples collected from depths of 6 inches and 8 inches of existing earth materials at nine locations onsite (one sample per one to two acres). The site consists of approXimately 18 acres; however, it is estimated that only 10 of the 18 acres were cultivated, generally on the mesa area. GSI previously collected six soil samples at depths between 0 and.1 foot (GSI, 1998b). The 15 recent and previous sample locations are provided.on Figure 2. Holes were excavated utilizing a hand auger. Samples were collected, stored, and transported to a California D~partment of Health Services (DHS) certified laboratory the same day, following quality assurance/quality control procedures (QNQC) during all soil sampling activities. A Chain-of-Custody record was recorded with the laboratory and is RWR Homes, Inc. Emerald Pointe Estates, Carlsbad Rle:e:\wp9\env\e4700\e4706.dac GeoSoils, Inc. w.o. E4706-SC February 28, 2005 Page 3 - - - - - - - - - - - - ---.----. _. ---_ .. _------------_. - ! ® • "\ • en 8 J ... 01 .® 0) = 0'» -,"0 0"0 ::r-' CD ~ 3 --iii· --3 o m m ....... ~ ~ ~ ~ ~ en ,.a .. 0 1,,'1·:\ r ,'.:'~.' .... 0 ... " en ~:~~~~) ~ » ~ • JiI!t .. ~ ~ -0 ~;~~~; .-• -0 m r ! 0 () iIi § ~ ""1 ~ 0 • z al:la IV ____ . _____ . __ ... ___ .. _-______ 0_--·-- I I I I I I I I I I I I I I I I I I I included in the laboratory reports in Appendix B. Chemical analyses included the following substances: • Soil samples analyzed for Chlorinated Pesticides and PCB's utilizing EPA Test Method 8081A. • Soil samples analyzed for Organophosphorous pesticides, utilizing EPA Test Method 8141A. • Soil samples analyzed for Chlorinated Herbicides utilizing EPA Test Method 8151 A. Laboratory Chemical Test Results Except for DDT, DOD, and DOE (Le., DDT (Total» and toxaphene, no constituents of the Chlorinated Pesticides were reported above the laboratory detection limits (Le., non-detect). Based upon the laboratory test results, concentrations of DDT/DOD/DOE (Le., DDT (Total» were detected at 14 of the 15 sample locations on the subject property, ranging from 0.0018 milligrams per kilogram (mg/kg) to 0.203 mg/kg. For comparison purposes, the regulatory action level for hazardous waste criteria (Le., Total Threshold Limit Concentration or TTLC) for DDT (Total) is 1.0 mg/kg. Concentrations of toxaphene (0.210 mg/kg to 0.330 mg/kg) were detected at five of. the fifteen sample locations onsite. The regulatory action level for hazardous waste criteria (Le., TTLC) for toxaphene is 5.0 mg/kg. Laboratory test results were reported as "not detected at or above the laboratory detection limits" for Organophosphorus Pesticides (EPA Test Method 8141A) and Chlorinated Herbicides (EPA Test Method 8151A). Laboratory reports are provided in Appendix B. Provided below (Table 1) is a summary of test results for the ~ample locations with concentrations reported as greater than the laboratory detection limits, as well as criteria ,limits for the preliminary estimate of risk to human health (Le., Preliminary Remedial Goals-P8G's) and the TTLC. Soil sample locations are provided on Figure 2. The laboratory report for our recent sampling is provided in Appendix B. RWR Homes, Inc. Emerald Pointe Estates, Carlsbad File:e:\wp9\env\e4700\e4706.dac GeoSoils, Ine. w.o. E4706-SC February 28, 2005 PageS I I I I I I I I I I I I I I I I I I I . · .. SAMPLE,., .... DATE LOCATION SAMPLED. 5-1 @D-1' 6-1-98 5-2@D-1' 6-1-98 5-3 @D-1' 6-1-98 5-4@0-1' 6-1-98 5-5 @D-1' 6-1-98 5-6 @D-1' 6-1-98 5-7@6" 2-15-05 5-8@8" 2-15-05 5-9@6" 2-15-05 5-10@8" 2-15-05 5-11 @6" 2-15-05 5-12@8" 2-15-05 5-13@6" 2-15-05 5-14@8" 2-15-05 5-15@6" 2-15-05 TABLE 1 SUMMARY OF CHEMICAL TEST RESULTS EPA TEST METHOD 8081A . .. -:~.DDT . " .. TOXAPHENE .TTLC .PRG .: (TOTAL)' .: (mg/kg) (mQ/kQ) .. (mg/kg) '. (mg/kgj : NO 5.0 0.44 0.0122 NO 5.0 0.44 0.0107 NO 5.0 0.44 NO NO 5.0 0.44 0.0018 NO 5.0 0.44 0.00468 NO 5.0 0.44 0.0039 0.25 5.0 0.44 0.106 0.28 5.0 0.44 0.129 NO 5.0 0.44 0.05 NO 5.0 0.44 0.482 0.31 5.0 0.44 0.203 0.21 5.0 0.44 0.202 NO 5.0 0.44 0.114 0.33 5.0 0.44 0.157 NO 5.0 0.44 0.059 PRG {11 -Preliminary Remedial Goals -Toxaphene (Smucker, 2000) PRG (2) -Preliminary Remedial Goals -OOT*. OOE*(1.7 PRG). and 000**(2.4 PRG) (Smucker. 2000) NO -Not detected at or above laboratory detection limits .. . : " "':;'=;. : .' .. '.: _. TTLC, ".;.:. PRG (mg/kg):·· . 'imjJ/kJO ' 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.1*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** 1.0 1.7*/2.4** Residue concentrations of DDT (Total) and toxaphene detected in soil samples onsite were compared to the US~PA Preliminary Remedial Goals (PRGs) for residential soil concentrations (Smucker, 2000). PRG tables combine existing USEPA toxicity values with generally accepted exposure factors to estimate concentrations in soil that do not represent a cancer risk to humans greater than one-in-one million (Le., 1 x 10-6). Exposure pathways considered include ingestion, inhalation and dermal absorption. Chemical concentrations presented in the PRG tables, therefore, can be directly compared to the residue concentrations detected in soils within the property. The PRG tables may be initially used in lieu of a health based risk assessment to determine the need for furt~er evaluation of sites with concentrations of known cancer-causing contaminants (Le., site screening) . It should be noted that human health based risk concentration levels, which are typically lower than hazardous waste criteria concentrations, will likely be the default factor RWR Homes, Inc. Emerald Pointe Estates, Carlsbad File:e:\wp9\env\e4700\e4706.dac GeoSoils,Ine. W.O. E4706-SC February 28, 2005 Page 6 I I I I I I I I I I I I I I I I I I I regarding the depth and amount of remedial grading needed to mitigate concentrations of pesticide residues detected onsite. Remedial grading may include (but not limited to) removal and burial of impacted earth materials at locations and depths with which will effectively eliminate future human contact, as well as eliminate potential impacts to surface water and groundwater. If concentrations of a substance are encountered, a CCR (California Code of Regulations) WET (Waste Extraction Test) extraction should be conducted to ascertain the Soluble Threshold Limit Concentration (STLC). If the regulatory level for STLC of a substance is exceeded, then it is considered a hazardous toxic waste. The STLO for toxaphene is 0.5 milligrams per Liter (mg/L), and for DDT (retail the STLC is 0.1 mg/L. Further, the Federal criteria for residual toxaphene concentrations to be classified as a RCRA hazardous waste is set a 0.5 mg/L as determined using the Toxicity Characteristic Leaching Procedure (TCLP). If any concentration of pesticides is detected onsite, and the affected soil is to be re-used onsite (such as compacted fill during grading), waste discharge requirements (WDRs) must be obtained by the owner/discharger from the RWQCB; however, prior to obtaining the WDRs, a Report of Waste Discharge (RWD) must be submitted to the Regional Water Quality Control Board (RWQCB). The type of supporting information provided to the RWQCB in support of a RWD and application for WDRs and permit for grading depends on if the pesticide concentrations are found to be nonhazardous waste or hazardous waste (concentrations of pesticides encountered onsite have been nonhazardous). CONCLUSIONS AND RECOMMENDATIONS Conclusions Based upon the information obtained during the course of this study, as well as information provided in the referenced texts, GSI presents the following summary of findings, conclusions, and recommendations: • To evaluate the potential for restricted agricultural chemical residues, surficial soil samples were collected from depths of 0 to 1 foot, 6 inches, and 8 inches within the subject property. Sampling of earth materials within the subject parcel, consisted of a total of 15 soil samples collected. Soil samples collected were analyzed for Chlorinated Pesticides (EPA Test Method'8081A), Organophosphorous Pesticides (EPA Test Method 8141A), and Chlorinated Herbicides (EPA Test Method 8151A). Sample locations are shown on the enclosed Soil Sample Location Map, Figure 2. The recent laboratory report is provided in Appendix B. • There were no concentrations of constituents/parameters reported within the Organophosphorous Pesticides (EPA test method 8141A), and Chlorinated Herbicides (EPA test method 8151) suite of laboratory tests. RWR Homes, Inc. Emerald Pointe Estates, Carlsbad File:e:\wp9\env\e4700\e4706.dac GeoSoils, Ine. W.O. E4?06-SC February 28, 2005 Page? I I I I I I I I I I I I I I I I I I I • • • Except for DDT, DOD, and DOE (Le., DDT (TOtal» and toxaphene, no constituents of the Chlorinated Pesticides were reported above the laboratory detection limits (Le., non-detect). Concentrations of toxaphene (0.0018 mg/kg to 0.203 mg/kg) were detected in five of the sample locations. Concentrations of DDT (Total) (0.210 mg/kg to 0.330 mg/kg) were detected in fourteen of the sample locations. For comparison purposes, regulatory action levels for hazardous waste criteria (Le., Total Liniit Threshold Concentration) for toxaphene is 5.0 mg/kg and 1.0mg/kg for DDT (Total). Detected concentrations of toxaphene and DDT (Total) onsite are considerably lower than the TILC criteria. Where applicable, GSI has used existing regulatory data as a screening tool for the detected concentrations of pesticides and other contaminants within the property. Preliminary Remedial Goals (pRGs), which combine existing USEPA toxicity values with generally accepted exposure factors to estimate concentrations in residential soil that do not represent a cancer risk to humans greater than. one-in- one million (Le., 1 x 10-6), are 1.7 mg/kg DDT (Total) and 0.44 mg/kg for toxaphene. Concentrations of DDT (Total) and toxaphene were found to be less than the criteria established as a potential risk to human health (Smucker, 2000). • The regulatory action levels for hazardous waste criteria (Total Threshold Limit Concentration-TILC), the Preliminary Remediation Goals (PRGs) for chemical residues (detected and non-detected onsite), and the chemical laboratory detection limits were compared. In summary, detection limits utilized by the testing laboratory were overall at least an order of magnitude (Le., 10 times) below TILC and PRG levels for all constituents. It appears, therefore, that detection limits utilized by the laboratory are suitable for agricultural-use chemicals. Recommendations A copy of this report should be submitted to the DEH Site Assessment and Voluntary Assistance Program for review and comment. Based upon the scope of limited work completed, GSI concludes that the concentrations of DDT (Total) and toxaphene detected in earth materials on the subject property are sufficiently below Preliminary Remedial Goals (pRGs) so as not to represent a risk to human health. However, based upon the RWQCB requirements for solid waste discharge to land, if the soil is to be re-used as c.ompacted fill onsite, further testing may be prudent at this time to assess vertical extent of the contaminants and test for the STLC using the California Department of Toxic Substances Control (DTSC) method, Toxicity Characteristic Leaching Procedure (TCLP) using EPA test method 1311, and SPLP using EPA Test Method 1312. The SPLP is an EPA SW-846- analytical method designed to determine the mobility (Le., leachability) oftoxic organic and inorganc soil contaminants to water, such as the groundwater table. - RWR Homes, Inc. Emerald Pointe Estates, Carlsbad Rle:e:\wp9\env\e4700\e4706.dac GeoSoils, Ine. W.O. E4706-SC February 28, 2005 PageS I I I I I I I I I I I I I I I I I I I LIMITATIONS GSI has performed the services for this project in accordance with the terms of a contract between GSI and Client and in accordance with current professional standards for investigations of this type. The conclusions presented in this report are based on the information collected during the study, the present understanding of the site conditions, and professional judgment. Please note, subsurface and hazardous waste/toxic sUbstance conditions may vary from those provided in historical documents reviewed by GSI. The interpretations and recommendations of GSI are based solely o'n such information and/or information supplied by Client. Findings of this assessment based on data provided by others carries no warranty, expressed or implied, as a result of the usage of such data. . It is possible that future assessments may reveal additional data or variations ofthe current data which may require the current conclusions and recommendations to be reevaluated. As a result, GSI makes no warranty, either express or impli?d, as to its findings, opinions, recommendations, specifications, or professional advice except that they were promulgated after being prepared in accordance with generally accepted standards of care and diligence normally practiced by recognized consulting firms performing services of a similar nature. The information in this report is relevant to the date of the site work and should not be relied on to represent conditions at any later date. Facts, conditions, and acceptable risk factors change with time, accordingly, this report should be viewed within this context. RWR Homes, Inc. Emerald Pointe Estates, Carlsbad File:e:\wp9\env\e4700\e4706.dac GeoSoils, Inc. w.o. E4706-SC February 28, 2005 Page 9 I I I I I I I I I I I I I I I I I I I The opportunity to be of services is appreciated. If you should have any questions, please do not hesitate to contact the undersigned at (760) 438-3155. Respectfully submitted, GeoSoils, Inc. Donna Gooley Director of Environment REA-1 6400, CEG 2336 DG/JPF/jk Attachments: Appendix A -References Appendix B -Laboratory Report and Chain-of-Title Distribution: (4) Addressee RWR Homes, Inc. Emerald Pointe Estates, Carlsbad File:e:\wp9\env\e4700\e4706.dac GeoSoiis, Inc. w.o: E4706-SC February 28,2005 Page 10 I I I I I I I APPENDIX A I REFERENCES I I I I I I I I I I -- I I I I I I I I I I I I I I I I I I I I APPENDIX A REFERENCES California Regional Water Quality Control Board, 1994, Water quality control plan, San. Diego Basin (9), dated September 8 (Approved 1995). GeoSoils, Inc., 1998a, Review and supplemental geotechnical evaluation, Emerald Pointe Estates, Carlsbad, California, W.O. E2468-SC, dated August 7. __ , 1998b, Phase I environmental site assessment and preliminary agricultural chemical residue survey, proposed Emerald Pointe Estates, APN 212-040-50, City of Carlsbad, San Diego County, California 92009, W.O. E2468-SC, dated July 2. Geotechnical Exploration, Inc., 1998, Report of preliminary geotechnical investigation, proposed Emerald Pointe Estates, BCS, property, APN 212-040-50, Carlsbad, California, Job No. 97-7189, dated March 15. Smucker, Stanford J., United States Environmental Protection Agency (USEPA), Region IX, Region 9 Preliminary Remediation Goals (pRGs) Table 2000 Update, dated November 1 . State of California, 1967, Department of Water Resources, Bulletin 106-2, Groundwater occurrence and quality: San Diego Region, vol. II: plates, dated June. Geo$oils,lne. I I I I I I I I I I I I I I I I I I I APPENDIX B LABORATORY REPORTS AND CHAIN-OF-TITLE HISTORY I I I ,,= alscience ~ =nvironmental g abQratories, Inc. ~~,~-~~~~ "~~~;;~;!'\' (~; ~. ':~ .. ~ I February 23, 2005 I I I I I I I I I I I I I I Donna Gooley GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Subject: Calscience Work Order No.: 05-02-0935 Client Reference: Emerald Pointe Estates I E4706 Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 2/16/2005 and analyzed in accordance with the attached chain-of-custody. Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Assurance Program Manual, applicable standard operating procedures, and other related documentation. The original report of any subcontracted analysis is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories, Inc. Steven L. Lane Laboratory Director .1. I CA-ELAP 10: 1230· NELAP 10: 03220CA. • CSOLAC 10: 10109 • SCAQMO 10: 93LA0830 I ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 89~-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I C alscience ~§ffffnVironmental g aboratories, Inc. GeoSoils, Inc. 5741 PalmerWay Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Parameter Result R!.. Disulfoton ND 0.50 Demeton-o ND 0.50 Demeton-s ND 0.50 Stirophos NO 0.50 Fensulfothion NO 0.50 Boistar ND 0.50 Diazinon NO 0.50 DichlolVos ND 0.50 Ethoprop NO 0.50 Merphos ND 0.50 Methyl Parathion NO 0.50 Surrogates: REC(%) Control Limits 1,3-Dimethyl-2-Nitrobenzene 90 30-130 Parameter Result RL Disulfoton ND 0.50 Oemeton-o ND 0.50 Demeton-s ND 0.50 Stirophos ND 0.50 Fensulfothion NO 0.50 Boistar ND 0.50 Diazinon ND 0.50 DichlolVos ND 0.50 Ethoprop NO 0.50 Merphos ND 0.50 Methyl Parathion ND' 0.50 Surrogates: REC(%) Control Limits 1,3-Dimethyl-2-Nitrobenzene 91 30-130 DF 1 1 1 1 1 1 1 1 1 1 1 DF 1 1 1 1 1 1 1 1 1 Analytical Report Lab Sample Number Qygj Qual Qual Qual Date Received: Work Order No: Preparation: Method: Units: Matrix Parameter Mel.inphos Naled Phorate Ronnel Fenthion Chlorpyrifos Trichloronate Tokuthion Azinphos Methyl Coumaphos Parameter Mel.inphos Naled Phorate Ronnel Fenthion Chlorpyrifos T richloronate Tokuthion Azinphos Methyl Coumaphos .1. I RL -Reporting Limit, DF -Dilution Factor. Qual-Qualifiers Date Prepared Result ND ND NO ND ND ND ND NO NO NO Result NO NO ND NO ND ND ND ND ND ND RL 0.50 4.0 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 RL 0.50 4.0 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 02/16/05 05-02-0935 EPA 3545 EPA 8141A mg/kg Page 1 of 5 QC Batch ID }i~!i~~~;~~i} ~~:~: DF 1 1 1 1 1 1 1 1 1 1 1 1 1 . Qual ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I .==.. i.u== a/science ;; snvironmental ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Parameter Disulfoton Demeton-o Demeton-s Stirophos Fensulfothion Boistar Diazinon Dichlorvos Ethoprop Merphos Methyl Parathion Surrogates: Parameter Disulfoton Demeton-o Demeton-s Stirophos Fensulfothion Boistar Oiazinon Dichlorvos Ethoprop Merphos Methyl Parathion Surrogates' 1.3-Dimethyl-2-Nitrobenzene Result NO NO NO NO NO NO NO NO NO NO NO REC(%l 88 Result NO NO NO ND NO NO NO NO NO ND NO REC (%l 78 RL 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Control Limits 30-130 RL 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Control Limits 30-130 OF 1 , 1 1 1 DF 1 Analytical Report Date Received: Work Order No: Preparation: Method: Units: Lab Sample Date Number Collected Matrix Qual Parameter Me\linphos Naled Phorate Ronnel Fenthion Chlorpyrifos TJichloronate Tokuthion Azinphos Methyl Coumaphos Qual Qual Parameter Mellinphos Naled Phorate Ronnel Fenthion Chlorpyrifos TJichloronate Tokuthion Azinphos Methyl Coumaphos Qual ,,/,,<,0 \I'\ A G~~~~~~:\( ," ;r '(: . Result B!.. NO 0.50 NO 4.0 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 0.50 Result RL NO 0.50 NO 4.0 ND 0.50 NO 0.50 ND 0.50 NO 0.50 NO 0.50 NO 0.50 . ND 0.50 NO 0.50 -\ 02/16/05 05-02-0935 EPA 3545 EPA 8141A mg/kg Page 2 of5 QCBatch 10 OF Qual 1 1 1 1 1 1 1 OF Qual 1 1 1 1 1 1 1 1 1 1 .11, I '" RL. --" R,eporting Limit. DF -Dilution Fador • Qual-Qualifiers ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I i: a/science ~ =nvironmental . i aboratories, Inc. GeoSoils, Inc. 5741 PalmerWay Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Client Sample Number Parameter Disulfoton Demeton-o Demeton-s Stirophos Fensulfothion Boistar Diazinon Dichlorvos Ethoprop Merphos Methyl Parathion Surrogates: Parameter Disulfoton Demeton-o Demeton-s Stirophos Fensulfothion Boistar. Diazinon Dichlorvos Ethoprop Merphos Methyl Parathion Surrogates: 1,3-Dimethyl-2-Nitrobenzene Result ND ND ND ND ND ND ND ND ND ND ND REC (%) 58 Result ND ND ND ND ND ND ND ND ND ND ND REC(%) 65 R!. 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Control Limits 30-130 RL 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Control Limits 30-130 DF 1 1 1 1 1 1 1 1 1 1 DF Analytical Report Lab Sample Number Qual Qual Qual Qual Date Received: Work Order No: Preparation: Method: Units: Matrix Parameter Mellinphos Naled Phorate Ronnel Fenthion Chlorpyrifos Trichloronate Tokuthion Azinphos Methyl Coumaphos Parameter Mellinphos Naled Phorate Ronnel Fenthion Chlorpyrifos Trichloronate Tokuthion Azinphos Methyl Coumaphos .1. I RL -Reporting Liinit, DF -Dilution Factor, Qual -Qualifiers Date Date 02/16/05 05-02-0935 EPA 3545 EPA 8141A mg/kg Page 4 of 5 Prepared Analyzed QC Batch ID :~~;~1~[6~~~~~,~!s!4~i~i~ Result RL DF Qual ND 0.50 1 ND 4.0 1 ND 0.50 1 ND 0.50 1 ND 0.50 1 ND 0.50 1 ND 0.50 ND 0.50 1 ND 0.50 1 ND 0.50 1 Result RL DF .QJml ND 0.50 1 ND 4.0 1 ND 0.50 1 ND 0.50 1 ND 0.50 1 ND 0.50 1 ND 0.50 ND 0.50 ND 0.50 ND 0.59 ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I i: alscience ~ §f€nvironmental § aboratories, Inc. GeoSoils, Inc. 5741 PalmerWay Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates I E4706 Analytical Report Date Received: Work Order No: Preparation: Method: Units: Date 02116/05 05-02-0935 EPA 3545 EPA 8141A mg/kg Pag~ 5 of5 Date Date Collected Matrix Prepared Analyzed QC Batch ID -'~~!9.~{~fp~i~~?:~.~~~~~!~':~!;:;~~~~~Wi~g", Parameter Result B.!. OF Qual Parameter Result RL OF Qual Disulfoton ND 0.50 1 Mevinphos NO 0.50 1 Demeton-o NO 0.50 Naled ND 4.0 Oemeton-s ND 0.50 Phorate ND 0.50 Stirophos NO 0.50 Ronnel ND 0.50 1 Fensulfothion NO 0.50 1 Fenthion ND 0.50 1 Bolstar NO 0.50 1 Chlorpyrifos NO 0.50 1 Diazinon NO 0.50 1 Trichloronate ND 0.50 1 Oichlorvos ND 0.50 1 Tokuthion NO 0.50 Ethoprop NO 0.50 1 Azinphos Methyl ND 0.50 Merphos ND 0.50 1 Coumaphos ND 0.50 Methyl Parathion ND 0.50 1 Surrogates: REC(%l Control Qual Limits 1.3-Dimethyl-2~Nitrobenzene 79 30-130 ::~~~;1~:~i~~1~1G~~~--;=~!~~i~~:r;~~~~it1-t~~~~~~:~t~: . ':~:Q~¥!i~tiii,fJE~' Parameter Result RL DF Qual Parameter Result RL OF .Q!@! Disulfoton ND 0.50 Mevinphos ND 0.50 1 Oemeton-o ND 0.50 Naled NO 4.0 1 Demeton-s NO 0.50 1 Phorate ND 0.50 1 Stirophos NO 0.50 1 Ronnel NO 0.50 Fensulfothion NO 0.50 1 Fenthion NO 0.50 1 Bolstar NO 0.50 1 Chlorpyrifos NO 0.50 1 Oiazinon NO 0.50 1 Trichloronate NO 0.50 Dichlorvos NO 0.50 1 Tokuthion NO 0.50 Ethoprop ND 0.50 1 Azinphos Methyl NO 0.50 1 Merphos NO 0.50 1 Coumaphos ND 0.50 1 Methyl Parathion ND 0.50 Surrogates: REC(%l Control Qual Limits 1.3-0imethyl-2-Nitrobenzene 84 30-130 J I I RL -Reporting Limit OF -Dilution Factor. Qual -Qualifiers ~ 7440 Lincoln Way. Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I C alscience ~ g;gnvironmental jj aboratories, Inc. GeoSoils, Inc. 5741 PalmerWay Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Analytical Report Date Received: Work Order No: Preparation: Method: Units: ... ;\,~,~~,;:~~(~;~!:~~~,j .... .... ',;. "'"- t?' (, , , ... t :± " 02/16/05 05-02-0935 EPA 8151A EPA 8151A ug/kg Page 1 of 3 Lab Sample Date Date Date Number Collected Matrix Prepared Analyzed QC Batch 10 ,:·;~J.:~,:~::~?_~~:f,~~k1~~~~~:~itL~:~t.!;~~~{~{9.~'~:~1;~:§.~~~:1~:~:$:~~~vlii:~~~~~~~~W~~!q\:~~,· Parameter Dalapon Oicamba MCPP MCPA Dichlorprop Surrogates: 2,4-0ichlorophenylacetic acid Parameter Oalapon Oicamba MCPP MCPA Oichlorprop Surrogates: 2,4-Dichlorophenylacetic acid Parameter Dalapen Oicamba MCPP MCPA Oichlorprop Surrogates; Parameter Dalapon Oicamba MCPP MCPA Dichlorprop Surrogates: 2,4-Dichlorophenylacetic acid Result ND NO NO NO NO REC (%) 94 Result ND ND ND ND NO REC (%1 98 Resu!t NO ND NO ND NO REC(%l 100 Result ND ND NO ND NO REC(%l 103 RL 250 10 10000 10000 100 Control Limits 30-130 RL 250 10 10000 10000 100 Control Limits 30-130 B6 -250 10 10000 10000 100 Control Limits 30-130 RL 250 10 10000 10000 100 Control Limits 30-130 OF Qual Parameter 1 2,4-0 1 2,4,5-TP (Silvex) 1 2,4,5-T 1 2,4-DB Dinoseb Qual OF Qual Parameter 1 2,4-D 1 2,4,5-TP (Silvex) 1 2,4,5-T 1 2,4-0B 1 Oinoseb .Qlli!l OF Qual Parameter 1 2,4-0 1 2,4,5-TP (Silvex) 1 2,4,5-T 1 2,4-0B Oinoseb Qual OF Qual Earameter 1 2,4-D 1 2,4,5-TP (Silvex) 1 2,4,5-T 1 2,4-DB Oinoseb Qual .I. I RL -Reporting Limit. DF -Dilution Factor. Qual-Qualifiers Result B6 OF .Qlli!l ND 100 1 NO 10 1 NO 10 1 NO, 100 1 NO 50 1 Result B6 OF .Qlli!l NO 100 1 NO 10 1 NO 10 1 NO 100 ND 50 1 Result B6 DF Qual NO 100 ND 10 NO 10 1 NO 100 1 ND 50 '~~![9~?~~-~~~j~ ,!:.'l: . Result B6 OF Qual NO 100 1 NO 10 1 NO 10 1 ND 100 1 ND 50 ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I :: a/science = snvironmental ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Analytical Report Date Received: Work Order No: Preparation: Method: Units: tt·\ AC(?o ~ ,,{!;P,~':~~~-'=rl~\~" ,.> :~. -;:: ~: 't..J .: -~ <t 02/16/05 05-02-0935 EPA 8151A EPA 8151A ug/kg Page 2 of 3 Lab Sample Date Date Number Collected Matrix Prepared QC Batch 10 ~~~f:t);~~~~~:;_i~M~~~~!~_~~1,3~;·;;:~;p~j~iif4:tl;~it¥~~~~r~l:t~~~~{':~~L. __ Parameter Dalapon Dicamba MCPP MCPA Dichlorprop Surrogates: 2,4-0ichlorophenylacetic acid Parameter Oalapon Oicamba MCPP MCPA Oichlorprop Surrogates: 2,4-0ichlorophenylacetic acid Parameter Oalapon Oicamba MCPP MCPA Oichlorprop SUrrogates: 2,4-0ichloropheny/acetic acid Result NO NO NO NO NO REC(%1 95 Result NO NO NO NO NO RECI%l 98 Result NO NO NO NO NO REC 1%) 101 RL 250 10 10000 10000 100 Control Limits 30-130 RL 250 10 10000 10000 100 Control Limits 30-130 R!. 250 10 10000 10000 100 Control Limits 30-130 OF 1 1 1 OF 1 OF 1 1 1 1 Qual Parameter 2,4-0 2,4,5-TP (Silvex) 2,4,5-T 2,4-0B Oinoseb Qual Qual Parameter .Q.YE! Qual 2,4-0 2,4,5-TP (Silvex) 2,4,5-T 2,4-0B Oinoseb Parameter 2,4-0 2,4,5-TP (Silwx) 2,4,5-T 2,4-0B Oinoseb ~~~~~~~~~~~~~~~~~~~~~~ _, ~~'!~~9.~~~;;~,~~~:~:ri~):§.l9§.l Parameter Oalapon Oicamba MCPP MCPA Oichlorprop Surrogates: 2,4-0ichlorophenylacetic acid Result NO NO NO NO NO REC(%) 101 RL 250 10 10000 10000 100 Control Limits 30-130 OF Qual Parameter 1 2,4-0 1 2,4,5-TP (Silwx) 1 2,4,5-T 1 2,4-0B 1 Oinoseb Qual J I I RL -Reporting Umit, OF • Dilution Factor, Qual· Qualifiers Result NO NO NO NO NO Result NO NO NO NO NO Result NO NO NO NO NO Result NO NO NO NO NO Rb OF Qual 100 1 10 10 100 1 50 1 Rb OF Qual 100 1 10 1 10 1 100 50 R!. 100 10 10 100 50 1 RL OF Qual 100 1 10 1 10 100 1 50 1 ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I .1 I I I I I I I I I I I I I I ~ a/science ;; ~nvironmental i aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Parameter Result R!,. Dalapon NO 250 Oicamba ND' 10 MCPP ND 10000 MCPA NO 10000 Oichlorprop NO 100 Surrogates: REC{%l Control Umits 2,4-Dichloropheny/acetic acid 30-130 Parameter Result RL Oalapon NO 250 Oicamba ND 10 MCPP ND 10000 MCPA ND 10000 Oichlorprop NO 100 Surrogates: REC{%l Control Umits 2,4-Dichloropheny/acetic acid 81 30-130 Analytical Report Date Received: Work Order No: Preparation: Method: Units: Lab Sample Date Number Collected Matrix OF Qual Earameter 1 2,4-0 2,4,5-TP (Silvex) 1 2,4,5-T 2,4-0B 1 Oinoseb Qual OF Qual Parameter 1 2,4-0 1 2,4,5-TP (Silvex) 1 2,4,5-T 1 2,4-D8 '1 Oinoseb Qual .1. I RL -Reporting Umit, DF -Dilution Factor, Qual-Qualifiers Result ND NO ND NO NO Result NO NO NO NO ND RL 100 10 10 100 50 RL 100 10 10 100 50 02116/05 05-02-0935 EPA 8151A EPA 8151A ug/kg Page 3 of3 QC Batch ID DF Q!m! 1 1 1 1 1 DF .Q!ml ~ 7440 Lincoln Way, Garden Grove. CA 92841-1427 • TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I == L alscience === = iffnvironmental ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Parameter Alpha-SHC Gamma-SHC Beta-BHC Heptachlor Delta-BHC Aldrin Heptachlor Epoxide Endosulfan I Oieldrin 4,4'-DOE Surrogates: Parameter Alpha-BHC Gamma-BHC Beta-BHC Heptachlor Delta-BHC Aldrin Heptachlor Epoxide Endosulfan I Oieldrin 4,4'-DDE Surrogates: Oecachlorobipheny! Result NO NO NO NO NO NO NO NO NO 74 REC{%l 88 Result NO NO NO NO NO NO NO NO NO 100 REC (%) 67 RL 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 25 Control Limits 50-130 RL 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 25 Control Limits 50-130 Analytical Report OF 1 1 1 1 1 1 5 OF Qual 1 1 1 5 Date Received: Work Order No: Preparation: Method: Units: Date Matrix Prepared Iij{~lj~,~:~7Jj!!l Parameter Result Endrin NO Endrin Aldehyde NO 4,4'-000 NO Endosulfan II NO 4,4'-OOT 32 Endosuffan Sulfate NO Methoxychlor NO Chlordane NO Toxaphene 250 Endrin Ketone NO Surrogates: REC(%) 2,4,5,6-Tetrachlor!HT1-Xyfene 70 Parameter Result Endrin NO Endrin Aldehyde NO 4,4'-000 NO Endosulfan " NO 4,4'-OOT 29 Endosuffan Sulfate NO Methoxychlor NO Chlordane NO Toxaphene 280 Endrin Ketone NO Surrogates: REC{%) 2.4,5,6-Tetrachloro-m-Xyfene 59 .1. I RL -Reporting Umit, OF -Dilution Factor. Qual-Qualifiers RL 5.0 5.0 5.0 5.0 5 5.0 5.0 50 100 5.0 Control Limits 50-130 .B!. 5.0 5.0 5.0 5.0 5 5.0 5.0 50 100 5.0 Control Limits 50-130 02116/05 05-02-0935 EPA 3545 EPA 8081A ug/kg Page 1 of 5 QC Satch 10 OF Qual 1 1 1 1 1 1 Qual ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I C alscience - = Environmental Ii aboratories, Inc. GeoSoils, Inc. 5741 PalmerWay Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates I E4706 Parameter Result B6 Alpha-SHC NO 5.0 Gamma-SHC NO 5.0 Seta-SHC NO 5.0 Heptachlor NO 5.0 Oelta-SHC NO 5.0 Aldrin NO 5.0 Heptachlor Epoxide NO 5.0 Endosulfan I NO 5.0 Dieldrin NO 5.0 4,4'-00E 39 10 Surrogates: REC (%) Control Limits 50-130 Parameter Result RL Alpha-SHC NO 5.0 Gamma-SHC NO 5.0 Seta-SHC NO 5.0 Heptachlor NO 5.0 Oelta-SHC NO 5.0 Aldrin NO 5.0 Heptachlor Epoxide NO 5.0 Endosulfan I NO 5.0 Dieldrin NO 5.0 4,4'-00E 41 10 Surrogates: REC(%) Control Limits Oecachlorobiphenyl 81 50-130 OF 1 1 1 2 OF 1 1 1 1 1 2 Analytical Report Lab Sample Number Qual Qual Date Received: Work Order No: Preparation: Method: Units: Date Collected Matrix Parameter Endrin Endrin Aldehyde 4,4'-000 Endosulfan II 4,4'-00T Endosulfan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone Surrogates: Parameter Endrin Endrin Aldehyde 4,4'-000 Endosulfan (( 4,4'-00T Endosulfan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone Surrogates: 2,4,5,6-Tetrachloro-m-Xylene .1. I RL -Reporting Limit, DF -Dilution Factor, Qu,,!1 -Qualifiers Result NO NO NO NO 11 NO NO NO NO NO REC(%) 66 Result NO NO NO NO 7.2 NO NO NO NO NO REC(%) 55 RL 5.0 5.0 5.0 5.0 5 5.0 5.0 - 50 100 5.0 Control 02/16/05 05-02-0935 EPA 3545 EPA 8081A ug/kg Page 2 of 5 QC Satch 10 OF Qual 1 1 1 1 1 1 l~~~~~~I~«~~~li.~i~~~~ RL OF Qual 5.0 1 5.0 1 5.0 5.0 5.0 1 5.0 1 5.0 1 50 1 100 1 5.0 1 Control .Qyg! Limits 50-130 ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I, I I C alscience == = anvironmental Ii aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Parameter Result RL Alpha-SHC NO 5.0 Gamma-SHC NO 5.0 Seta-SHC NO 5.0 Heptachlor NO 5.0 Oelta-SHC NO 5.0 Aldrin NO 5.0 Heptachlor Epoxide NO 5.0 Endosulfan I NO 5.0 Dieldrin NO 5.0 4,4'-00E 150 50 Surrogates: REC(%) Control Limits Oecachlorobiphenyl 72 50-130 Parameter Result RL Alpha-SHC NO 5.0 Gamma-BHC NO 5.0 Seta-BHC NO 5.0 Heptachlor NO 5.0 OeHa-SHC NO 5.0 Aldrin NO 5.0 Heptachlor Epoxide NO 5.0 Endosulfan I NO 5.0 Dieldrin NO 5.0 4,4'-00E 150 25 Surrogates: REC(%l Control Limits Decachlorobiphenyl 68 50-130 OF 1 1 1 1 1 1 1 10 OF 1 1 , 1 5 Analytical Report Date Received: Work Order No: Preparation: Method: Units: Qlli!.! Parameter Endrin Endrin Aldehyde 4,4'-000 Endosulfan II 4,4'-00T Endosuffan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone Qual Surrogates: 2,4,5,6-Telrachloro-m-Xylene Parameter Endrin Endrin Aldehyde .4,4'-000 Endosulfan II 4,4'-00T Endosulfan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone Surrogates: 2,4,5,6-Tetrachloro-m-Xylene .1. I RL -Reporting Limit, DF -Dilution Factor, Qual -Qualifiers Result NO NO NO NO 53 NO NO NO 310 NO REC(%) 64 Result NO NO NO NO 52 NO NO NO 210 NO REQ(%} 55 B.!. 5.0 5.0 5.0 5.0 50 5.0 5.0 50 100 5.0 Control Limits 50-130 RL 5.0 5.0 5.0 5.0 25 5.0 5.0 50 100 5.0 Control Limits 50-130 02/16/05 05-02-0935 EPA 3545 EPA 8081A ug/kg Page 3 of 5 OF Qual 1 1 10 1 1 1 1 1 Qual OF Qual 1 1 1 1 5 1 1 1 Qlli!.! ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I C alscience ~ =nvironmental ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 9?008-0000 Analytical Report Date Received: Work Order No: Preparation: Method: Units: 02116/05 05-02-0935 EPA 3545 EPA 8081A ug/kg Project: Emerald Pointe Estates 1 E4706 Page 4 of5 Lab Sample Date Date Date Number Collected Matrix Prepared Analvzed QC Satch 10 ";';;";I~A~~M~?:!~f:~~~1~~~I~{Q~;~~~~~~~p.!!~1~~~l;i~~!:-. C:l~-';:;e~~~f9~~:~~fo§.[~t~t~~t~~:~{~~;!: Parameter Result RL OF Qual Parameter Result RL OF Qual Alpha-SHC NO 5.0 1 • Endrin NO 5.0 1 Gamma-SHC NO 5.0 1 Endrin Aldehyde NO 5.0 Seta-SHC NO 5.0 4,4'-000 NO 5.0 Heptachlor NO 5.0 Endosulfan II NO 5.0 1 Oelta-SHC NO 5.0 4,4'-ODT 22 5 1 Aldrin NO 5.0 Endosulfan Sulfate NO 5.0 1 Heptachlor Epoxide NO 5.0 Methoxychlor NO 5.0 1 Endosulfan I NO 5.0 Chlordane NO 50 1 Dieldrin NO 5.0 Toxaphene NO 100 1 4,4'-DOE 92 25 5 Endrin Ketone NO 5.0 1 Surrogates: REC(%} Control Qual Surrogates: REC (%) Control Qual Limits Limits 88 50-130 2,4,5,6-Tetrachloro-m-Xylene 58 50-130 "Q-~:nJ~~~~~)~i~~~~'~~~~t Parameter Result RL OF Qual Parameter Result RL OF Q.ygJ Alpha-SHC NO 5:0 1 Endrin NO 5.0 1 Gamma-SHC NO 5.0 1 Endrin Aldehyde NO 5.0 1 Seta-BHC NO 5.0 1 4,4'-000 NO 5.0 Heptachlor NO 5.0 Endosulfan II NO 5.0 Delta-SHC NO 5.0 4,4'-ODT 37 5 Aldrin NO 5.0 1 Endosulfan Sulfate NO 5.0 1 Heptachlor Epoxide NO 5.0 1 Methoxychlor NO 5.0 1 Endosulfan I NO 5.0 1 Chlordane NO 50 1 Dieldrin NO 5.0 Toxaphene 330 100 1 4,4'-DDE 120 50 10 Endrin Ketone NO 5.0 1 Surrogates: REC(%} Control Q.ygJ Surrogates: REC(%) Control Qual Limits Limits Decachlorobiphenyl 88 50-130 2,4,5,6-Tetrachloro-m-Xylene 73 50-130 J I I RL -Reporting Limit, DF -Dilution Factor. Qual -Qualifiers ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I ::: alscience ;; Environmental ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates 1 E4706 Parameter Alpha-SHC Gamma-BHC Seta-BHC Heptachlor Delta-SHC Aldrin Heptachlor Epoxide Endosulfan I Dieldrin 4,4'-DDE Surrogates: Parameter Alpha-SHC Gamma-BHC Seta-SHC Heptachlor Oelta-SHC Aldrin Heptachlor Epoxide Endosulfan I Dieldrin 4,4'-ODE Surrogates: Decachlorobiphenyl Result ND ND ND ND ND ND ND ND ND 44 REC(%) 102 Result NO ND ND ND ND ND NO ND ND NO REC(%} 98 RL 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 10 Control limits 50-130 RL 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Control Limits 50-130 1 1 2 DF 1 1 1 1 1 1 . 1 1 Analytical Report Date Received: Work Order No: Preparation: Method: Units: Qual Parameter Qual Qual Endrin Endrin A1dehyqe 4,4'-DOO Endosulfan If 4,4'-00T Endosulfan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone Surrogates: Parameter Endrin Endrin Aldehyde 4,4'-DOO Endosulfan If 4,4'-DOT Endosulfan Sulfate Methoxychlor Chlordane Toxaphene Endrin Ketone Surrogates: 2,4,5,6-Tetrachloro-m-Xylene .1. I RL -Reporting Umtt, DF -Dilution Faclcr, Qual -Qualifiers q" AG('o '') ~.;'-'~~~~~~"··"'!~~~I,<~<, q. oJ: {; 'J ~ Resuij R!: NO 5.0 ND 5.0 NO 5.0 ND 5.0 15 5 NO 5.0 ND 5.0 NO 50 ND 100 ND 5.0 REC(%) Control limits 50-130 Resuij R!: NO 5.0 ND 5.0 NO 5.0 ND 5.0 NO 5.0 ND 5.0 NO 5.0 NO 50 ND 100 NO 5.0 REC(%) Control Limits 79 50-130 0211.6/05 05-02-0935 EPA 3545 EPA 8081A ug/kg Page 5 of5 QC Batch ID DF 1 1 1 1 1 1 1 1 1 1 DF Qual 1 1 1 1 1 1 1 1 1 1 Qual ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I .;.= alscience :: /,vironmental Quality Control -Spike/Spike Duplicate ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmervyay Carlsbad, CA 92008-0000 Project Emerald Pointe Estates 1 E4706 Quality Control Sample 10 Matrix Parameter MS%REC Fensulfothion 106 Ethoprop 95 Phorate 100 Ronnel 82 Trichloronate 81 Tokuthion 83 RPD -Relative Percent Difference. CL -Control Limit Date Received: Work Order No: Preparation: Method: Instrument MSO%REC %RECCL RPO 97 30-130 9 85 30-130 10 90 30-130 10 75 30-130 9 74 30-130 9 76 30-130 9 ~\l t~et;Q::;-,~;.:~~': . "'~~-~~'~~~\::" .~ ~ l..J .' (J . <>: . RPDCL 0-30 0-30 0-30 0-30 0-30 0-30 ..... 7. 02/16/05 05-02-0935 EPA 3545 EPA 8141A MS/MSO Batch Number Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427. TEL:(714) 895-5494. FAX: (714) 894-7501 I I I I I I I I I I I I I I. I I I I I :.= alscience ;;; anvironmental Quality Control -Spike/Spike Duplicate ~ aboratoriesl Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project Emerald Pointe Estates 1 E4706 Quality Control Sample 10 Matrix Parameter MS%REC 2,4-0 60 2,4,5-T 62 2,4-0B 60 . RPD -Relative Percent Difference, CL -Control Umit " . Date Received: Work Order No: Preparation: Method: Instrument MSD %REC 43 50 37 Date Prepared %RECCL 30-130 30-130 30-130 RPD 34 20 48 ~/:~.:~'!;E"'~\ C5,'~~~:~c~, .:~. ~ ~. Date Analyzed RPDCL 0-30 0-30 0-30 .... 02/16/05 05-02-0935 EPA 8151A EPA 8151A MS/MSD Batch Number Qualifiers 4 4 7440 Lincoln Way, Garden Gro'le, CA 92841-1427. TEL:(714) 895-5494. FAX: (714) 894-7501 I I I I I I I I I I I. I I I I I I I I ic= alscience ;; anvironmental Quality Control -Spike/Spike Duplicate ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project Emerald Pointe Estates 1 E4706 Quality Control Sample 10 Matrix Parameter Gamma-BHC Heptachlor Endosulfan I Dieldrin Endrin 4,4'-DDT MS%REC 57 58 51 41 60 44 RPD -Relative Percent Difference, CL -Control Umit Date Received: Work Order No: Preparation: Method: Date Instrument Prepared MSD%REC %RECCL 54 50-135 54 50-135 50 50-135 39 50-135 57 50-135 31 50-135 02116/05 05-02-0935 EPA 3545 EPA 8081 Al8082 Date MSIMSD Batch Analyzed Number ,~i.~?trf,!§§:~~}:~tJ~,:' RPD RPDCL Qualifiers 6 0-25 7 0-25 2 0-25 5 0-25 3 5 0-25 37 0-25 3',4 7440 Lincoln Way, Garden Grove, CA 92841-1427. TEL:(714) 895-5494. FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I C a/science = _nvironmenta/ Quality Control -LCS/LCS Duplicate i aboratories, Inc. GeoSo"ils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates! E4706 Date Received: Work Order No: Preparation: Method: N!A 05-02-0935 EPA 3545 EPA 8141A Date Date lCS/LCSD Batch Qualily Control Sample ID Matrix Instrument Prepared Analyzed Number Parameter LCS%REC LCSD%REC %RECCL RPD RPDCL Qualifiers Fensulfothion 74 82 30-130 10 0-30 Ethoprop 65 74 30-130 13 0-30 Phorate 70 78 30-130 11 0-30 Ronnel 58 64 30-130 10 0-30 Trichloronate 58 65 30-130 10 0-30 Tokuthion 59 66 30-130 10 0-30 .1. I RPD -Relative Percent Difference, CL -Control Limit ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427. TEL:(714) 895-5494. FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I ;.= a/science ;; §fpvironmenta/ ,,;} ~:. :;~,"~:::-~~~;i:;;'~~.::,;, V· Quality Control -LCS/LCS Duplicate ~ aboratories, Inc. GeoSoils, Inc. 5741 PalmerWay Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates I E4706 Date Received: Work Order No: Preparation: Method: N/A 05-02-0935 EPA 8151A EPA 8151A Date Date LCSILCSD Batch Quality Control Sample 10 Matrix Instrument Prepared Analyzed Number Parameter LCS%REC LCSD %REC %RECCL R~D RPOCL Qualifiers 2,4-0 73 80 30-130 9 0-30 2,4,5-T 102 101 30-130 1 0-30 2,4-0B 91 90 30-130 1 0-30 .1. I RPD -Relative Percent Difference. CL -Control Limit JI\JIJJt.r.}-.. 7440 Lincoln Way, Garden Grove, CA 92841-1427. TEL:(714) 895-5494. FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I ia= a/science ;; =nvironmenta/ Quality Control -LCS/LeS Duplicate .;/ '::~;:"'~W~~ (. 0 -? 0 <; 'If:', "to ~ ~ aboratories, Inc. GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92008-0000 Project: Emerald Pointe Estates I E4706 Date Received: Work Order No: Preparation: Method: c .. ; (;~ -\ ...... : . N/A 05-02-0935 EPA 3545 EPA 8081A Date Date LCS/LCSD Batch Quality Control Sample 10 Matrix Instrument Prepared Analyzed Number Parameter LCS%REC LCSD%REC %RECCL RPD RPDCL Qualifiers Gamma-SHC 82 92 50-135 12 0-25 Heptachlor 76 87 50-135 14 0-25 Endosulfan I 77 89 50-135 15 0-25 Dieldrin 79 92 50-135 15 0-25 Endrin 71 81 50-135 13 0-25 4,4'-DDT 75 83 50-135 11 0-25 .11 I RPD -Relative Percent Difference, CL-Control Limit ~ 7440 Lincoln Way, Garden Grove, CA 92841-1427. TEL:(714) 895-5494. FAX: (714) 894-7501 I I I I I I I I I I I I I I I I I I I :. = alscience :: _nvironmental ,~_:_<,} \\\ ~~:(:~~-1~:., '" -,-Glossary of Terms and Qualifiers I aboratories, Inc. '.J (J Work Order Number: 05-02-0935 Qualifier * 1 2 3 4 5 A B C E H J N NO Q U X Z Definition See applicable analysis comment. Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. Recovery of the Matrix Spike or Matrix 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. 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. The PDS/PDSD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported with no further corrective action required. Result is the average of all dilutions, as defined by the method. Analyte was present in the associated method blank. Analyte presence was not confirmed on primary column. Concentration exceeds the calibration range. Sample received and/or analyzed past the recommended holding time. Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. Nontarget Analyte. Parameter not detected at the indicated reporting limit. Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. Undetected at the laboratory method detection limit. % Recovery and/or RPD out-of-range. Analyte presence was not confirmed by second column or GC/MS analysis. . 7440 Lincoln Way, Garden Grove, CA 92841-1427· TEL:(714) 895-5494· FAX: (714) 894-7501 - ---- - - -- - ------ --TIiIP Chain of Custody Record f o'c[ '!J5" ") ~: 9.-/S-05" o 148 S. Vinewood St., Escondido, CA 92029 • ph 760.735.3208 • fax 760.735.2469 HPL Project # __________ _ o 432 N. Cadros Ave., Solana Beach, CA 92075 • ph 858.793.0401 • fax 858.793.0404 LABS o 2373 208th Street Unit F-1, Torrance, CA 90501 • ph 310.782.2929· fax 310.782.2798 Outside Lab: _'--_________ _ Client: GeeSC I' Is. Address: ~o;is ~jme c , W~t()08 Phone: ?fo. 0 tf~8 :3 ISS" __ ~ Fax:1foO q3 {f.J9t5 Notes: Sample s -"/(iV Co II , . .5 -A iii) ~II -.;.::::::;; S -t]o ~ f.o If ~, S -IOLD ~ "'="--, S-l/~(ol .......... <, -(2 ((9, gil ,), .1 -t!S(Q) _ \V ~ -It./@. A" :~ -/~ @. /0'( --.;;;:;:; Depth I Time R~!Rquished by: (Slgnalure), J 0 I Jtr:M../l'\il.... • I~ RliIIIiquished by: (Slgnature)'V () ~S~ I Date I~%< 17 \ I \ J , ) Sample Container Type Type --..1i'I /) ('ay I" ,J/ "-\ ) , , / \ \ J I I Gflnv) (company) ~ ·Slgnature consll~ aUIh~o ~~YSIS and acceptance of condilion on back, Collector: llionQ Goole~ Page: of __ l __ _ Client Project # e: q '1 0 (p Project Manager ________ _ Location: E r(Yl e eel. ! d. Po I r'\ +e.. E s fu,ies Turn around time: V10rmal , ' U) 8260B I I ISample Receipt "0 c ::J ci3 0 D. Int~cl: 0 Yes 0 No E ~f 8 "' 1ii UJ ~ "* Seal Intact: 0 Yes 0 No 0 NIA U) ~ Ul m ~ Ql C ro' Ql c ~ Cold: 0 Yes 0 No ~ -"D '" C -< Ql Ol Ql X Q) .2 ~ 0 UJ .E "0 I-'" :x: UJ Ql -N/A (Received on Site) 8 a c m :x: 0.. Q) "0 UJ ~ ~ ~ Ul ~ .... ... 0:: 0 ro c Ql '" '0 '" oS! oS! I--c 10 c (!) OJ Q) ~ Q) U) UJ ~ '"' J: ,... N ... OJ (J (J .., :x: N cO ~ Q) .sc ~ iii ~ 0.. 0 0 ;: 0 ~ ,!S Field Notes ;2 I-eo eo 0 ;> ::;: u. X ,X 'X Ix Ix. Ix IX. X ~ X-X ht. IX X 'A !V-X X Ix "-" 'f.. X )( X. A )( ~dbY: (Sigmitur~ ;:::;:;:-~ ------~mpany) !~b¥I'j(~ Recelve~ L-(company) DiI"te: I I 'TIme: ~ '" n ure) \. MA/~-cet::.ny ) 1~~17t;fJ Sampla disposal instruct/on: o Disposal @ $2.00 aach o Relurn 10 cllenl TI PIckup - - ------ -- - - -- - - - -,--IXIP Chain of C~stody Record f'O'1~5') ~e: a-IS-os: D o D 148 S. Vinewood St.. Escondido. CA 92029· ph 760.735.3208· fax 760.735.24'69 HPL Project # __________ _ LABS 432 N. Cedros Ave .• Solana Beach, CA 92075 • ph 858.793.0401 • fax 858.793.0404 2373 208th Street Unit F-1. Torrance, CA 90501 • ph 310.782.2929· fa~ 310.782.2798 Outside Lab: ___________ _ Geos..,' Is.. 'v\~ C'~"t. '1~1 ~h'lec ==608 Add",,, &ts = "",110 0 9.3 ( 69JS Phone: '1 fa 0 Lf ~8 3 JS'C:;- Notes: Sample Container Depth I Time I Date Type Type Sample S -1r4> Co II ~;Sn!t -~ 1cu:::. '05-81& 811 (" f'l ..JL ......... s _-=1_~ fo If '\ " _\ '-' I S -/0.6) ~ 1 1 S-l/;;(o;( L s - ( 2. @. fY' ~'1_ ..... I:&cv _ (ptt \ I ~ ~ 1 I ~ -It./({P. A" :~ _/~ @ _ lair - R.~~ .. qulshed by: (Signature). 1 0 lJ~~~ r~. ny) G~'L R6lII'iquished by: (Slgnllture)'V 0 (company) RliHllqulsheb by: (S~ ~ 'stgnature consll~o ~ed ~YSIS and acceptance of condition on back. Collector: [bona Goo(e~ Page: Of_-.-:.l __ _ Client Project # r;::: Q'1 0 (P Project Manager ______ ~-_ Location: E rmeca.(d Po ( ttte. Es'bies Turn around time: Vlormal OJ 8260B "0 c: :l ~ 0 a E ~fl '8 II> "iii UJ ~ ~ OJ ~ "' c: Q) ~ Q) '6 ~ c: ~ -Q) c: -< "0 0> Q) Q) Q) .2 J: g 0 :« ~ c: "0 co ~ "0 ~ .-:a c: CD J: a. gj ~ 0:: c: Q) til ... ... III III S S I--c: tIJ c: (9 _ V: OJ Q) ~ ~ " OJ (11 '0 J: J: ... ... cO g t) t) ti " GC @:6ti N N ~ ~ ~ a. a. 0 0 :q: :iE l-I-<X) <X) III X -)<. X Ix IX. IX Ix x. "J. X-x.. ~ Ix X 'A 1)( X X X A ~ A X X A )... X' ~e~ ~mpany) Recelve~ L-(company) .'RBi:el~rel \. .-" Uk-x ~ny) Sample disposal instruction: D Disposal @ $2.00 each D Return to client Sample Receipt Intact: 0 Yes 0 No Seal Intact: 0 Yes 0 No 0 N/A I l'! .S ~ Cold: 0 Yes 0 No N/A (Received on Site) 'l5 1-------------------11 ~ Field Notes .l!! ~ 1~4?¥_I/j/r odIe: I I lime: -~ " l~jl?17t:£J D' Pickup