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HomeMy WebLinkAboutCT 06-13; Tabata 10; Tentative Map (CT) (3)Phase II Baseline Environmental Site Assessment Tabata Farms 2311 Camino HIM Drive Carlsbad, California 92008 Prepared For: Tabata Family Trust c/o Mr. Gregg Harrington P.O. Box 943 Carlsbad, California 92018 Prepared By: Vinje & Middleton Engineering, Inc. 2450 Vineyard Avenue Escondido, California 92029 November 6, 2006 VME Job # 06-203-H TABLE OF CONTENTS PAGE NO. 1.0 INTRODUCTION 1 2.0 SITE BACKGROUND 1 3.0 FIELDWORK , 2 4.0 ANALYTICAL RESULTS 3 6.0 CONCLUSIONS 4 6.0 LIMITATIONS 4 FIGURES: 1. Regional Index Map 2. Site Plan Map 3. Site Plan Map with Sample Results APPENDICES: A. Laboratory Analytical Report B. References 1.0 INTRODUCTION This report presents the findings of a Phase II Baseline Environmental Site Assessment (ESA) conducted by Vinje & Middleton Engineering, Inc. (VME) on the 10.36 acre Tabata Famris property with street address of 2311 Camino Hills Drive, Carlsbad, California. Subject property is approximately 3.30 miles east of the Pacific Ocean, approximately 900 feet north ofthe intersection of El Camino Real and College Boulevard. Site is located on west side of El Camino Real on gentle northeast sloping terrain. Properties regional [ocation is illustrated on attached Figure 1. This initial baseline assessment was authorized by Mr. Greg Harrington on behalf of the Tabata Family Trust (Client). Analysis of surficial soils was authorized by Client following recommendations presented in VME' Phase I ESA Report, 2311 Camino Hills Drive, Carlshad, California dated April 27, 2006. Past agricultural land use and present storage of one (1) above ground fuel tank are the focus of this assessment 2.0 SITE BACKGROUND Geologically the upper elevations of the project area are mapped as Tertiary Santiago Formation, a pale grey clayey sandstone, clayey siltstone, and claystone. The lower elevations, adjacent E) Camino Real are underlain by recent alluvial stream and valley fill deposits associated with the confluence of Letterbox Canyon and Agua Hedionda Creek, and consist of a brown silty sandy clay with angular 3" minus rock. Clays were stiff to very stiff and expansive. Subject property is located within the Los Monos hydrologic sub-area of the Carlsbad Hydrologic Unit. Surface water within the Lbs Monos hydrologic sub-area has beneficial uses for: municipal, industrial, agricultural, Recreation 1 & 2, warm water habitat, and wildlife. Groundwater within the Los Monos hydrologic sub-area also has beneficial uses for: municipal, agricultural and industrial applications. Research reported no groundwater wells within a one-mile radius ofthe subject property. A concurrent geotechnical investigation conducted to identify engineering conditions for grading recommendations identified groundwater in two soil borings. Soil borings B-2 and B-3 encountered groundwater at 32 and 33 feet below the surface, respectively. Borings are located between the existing house and El Camino Real. Surrounding land use is residential on the north, south and west sides. El Camino Real bounds the property on the east. Land east of El Camino Real is zoned commercial and is vacant as of this writing. Review of historical photographs showing past land use referenced in the April 27, 2006 Phase I ESA, identifies agricultural activity on the nearly 10 acre parcel prior to Tabata Farms ownership (1985). It is estimated that the site has been used for propagation of Phase II Baseline Environmental Site Assessment November 6, 2006 2311 Camino Hill Drive, Carlsbad, California Page 2 various crops for approximately 70 years. In addition, the property has been occupied since the early part ofthe 20'^ Century by a residence, barns, and sheds. A 200-gaIlon steel above ground storage tanks mounted on a single axle frame with ball hitch yoke. Mr. Noboru Tabata told VME during performance of the Phase I ESA that the tank is moved periodically to different sites and has been historically used for fueling farm equipment. Tank contents were identified as diesel fuel. No soil staining, nor distressed vegetation were observed. Based on the properties past land use (agricultural) and its proposed conversion to single family residential lots, the sites past agricultural activity represents a potential environmental concern to future residence. It was VME' recommendation to analyze soil for organochlorine pesticides due to their environmental persistence and negative concerns to acute and chronic human exposure. Analysis of soil forthe carbamate and organophosphorus class of insecticides/herbicides was not recommended by VME due to their relatively short half-life compared to the chlorinated pesticide compounds. Carbamates and organophosphorus pesticides typically break down to inert compounds quickly. 3.0 FIELD WORK On October 23, 2006, VME collected seven (7) soil samples from depths of 0.5 - 2 feet below surface grade. Soil samples SS-1 through SS-7 area located on the attached site plan map as Figure 2. Chlorinated pesticides have a strong bond to soil grains and generally remain where applied. Vertical movement typically occurs within the tillable zone of land farmed, usually restricted to the upper 2-3 feet of soil. It should be noted that VME observed dense soils throughout the site at an approximate depth of 6-8 inches below the surface. It did not appear the site had been disced to significant depths. Tools used in sample collection were cleaned each time before re-use using the 'triple bucket method'. Samples were placed in laboratory provided jars with Teflon lined lids, sealed, labeled, and stored in a cooler at 4°C. Samples were taken by courier with chain- of-custody documentation to a state certified analytical laboratory for analysis. Six of the samples were analyzed for Chlorinated Pesticides using EPA Method 8081 A. One sample was analyzed for Petroleum Hydrocarbons in both the gasoline and diesel ranges using DHS Method 8015B. Phase II Baseline Environmental Site Assessment 2311 Camino Hill Drive, Carlsbad, California 4.0 ANALYTICAL RESULTS November 6, 2006 Page 3 The laboratory results posted no detectable concentration of 21 chlorinated pesticides in the six (6) near surface soil samples analyzed. Analysis of one (1) soil sample for gasoline and diesel fuels below the steel above ground storage tank (AST) also reported no detectable concentration for either gasoline or diesel within their respective carbon ranges. The laboratory results with depth of sample are tabulated below. ^/I- t^Vt ' ^ - 7 Tabata Farms ' ^ ^ - - o ^'"V' „ ^ Camino Hills Dnve.-'CaFlsbad. CA Gasoline x SS-1 0.5 — ND ND SS-2 1.5 ND — — SS-3 2.0 ND — — SS-4 1.5 ND — — SS-5 1.0 ND — — SS-6 0.5 ND — — SS-7 1.0 ND — — NOTES: ND = Not Detected at Laboratory Reporting Limit ug/kg = micrograms of contaminant per kilogram of soii or parts per billion (ppb) — - not analyzed 5.0 CONCLUSION Based on historical land use as agricultural property, a total of six surficial soil samples to a maximum depth of two feet below surface grade were evaluated for twenty one (21) persistent compounds in the chlorinated pesticide group. In addition, one soil sample beneath an above-ground fuel storage tank was evaluated for both gasoline and diesel content at a depth of Yz foot below the surface. It is the judgement of VME that we have performed an adequate baseline assessment of surficial soil given historical land use and the potential environmental concerns associated with the chemicals of concern and the planned development ofthe property into residential building lots. Sample locations were randomly chosen to provide aerial coverage of the site. Phase II Baseline Environmental Site Assessment November 6, 2006 2311 Camino Hill Drive, Carlsbad, California Page 4 This limited assessment, performed on October 23, 2006, of near surface soil at the 2311 Camino Hills Drive property did not identify the presence of chlorinated agricultural chemical residue nor petroleum hydrocarbons. The findings of this assessment does not warrant further evaluation of site soils at this time. 6.0 LIMITATIONS This report was prepared for the exclusive use by our client, Tabata Family Trust, and their designated assignees. The findings of this report are valid as of the date of this report. It should be noted that changes within the condition of a site can occur with time due to natural or man created conditions, either on-site or from adjacent properties. In addition, changes in the standard-of-practice and/or government codes and regulations may occur. These circumstances may result in the invalidation of this report, in part or whole, which may be beyond our control. In performance of our professional services, we comply with the level of care and skill ordinarily exercised by members of our profession currently practicing under similar conditions. The client recognizes that conditions often change and that our conclusions are based upon observations and available information. We shall not be liable for conditions or consequences arising from relevant facts of information either incorrect, concealed, with-held or not fully disclosed from other sources. We appreciate your choosing VME for your environmental needs. If we may be of further assistance on this or any other project, piease contact us at 760-743-1214. VINJE & MIDDLETON •Brad Crawshaw Project Manager PG #7888 BC:njd Distribution: Addressee (3) Jim Boeker, Pasco Engineering (1) Seals 1 : 100,000 1" - -I.semi e 2002 DoLorm*. Topo USA ®. Data copyrlglit or content own.r. www.dvIormv.com - Soil sanple locations for Chlorinated Pesticides - Soil sanple location for Petroleum Hydrocarbons VINJE 8c MIDDLETON ENGINEERING. INC. 2450 Vineyard Avenue. Suite 100 Escondido. California 92029-1229 iPhonei (760) 743-1214 Fax; (760) 739-0343 i i e-nail! vinje.rtiddletonesbcglobal.ne-t Jo^** S q6::2Q3HH Isate' 10/^5/2006 jFlgurej SITE PLAN MAP Tabata Farns Property i 2311 Canino HiUs Drive ! Carlsbad. California 92008 «•« P«*roL Fnction «•« P«*roL Fnction 2.0 ND tcpth <Ft> Fraction 0.5 ND )tpth (TtJ FrttCtion 1.5 ND Icpth (TW rractlon 0«A«> 1.5 ND Fraction MorkwtM Prrtiddf 1.0 ND »pth <rtJ P»trg<. Fractton >ilorlnat*i PtctlcU* 0.5 ND PetroL Hyit-o. FrocVon Mortaatm LO ND Jtpth CFti Fraction PMtlCWB VINJE & MIDDLETON ENGINEERING, INC. 2450 Vineyard Avenue. Suite 100 Escondido. California Soil sanple locations for Chlorinated Pesticides Soil sample location for Petroleum Hydrocarbons - Sample Depth In Feet below surface; Petroleum Hydrocarbon (either gas or diesel. Unit of measure Is either milligron per kilogram or microgram per kilogram. ND - Not Detected --- - _ Not Analyzed Job # : 06-203-H Dote! n/02/2006 Figure! 3 "SITE"PLAN'MAP Vith Sanple Results Tabata Farns Property 2311 Canino HiUs Drive Carlsbad. California 92008 92029-1229 Phone: (760) 743-1214 Fax! (760) 739-0343 e-naiU vinJe.niddleton@sbcglobal.net APPENDIX "A" SunStar Laboratories, Inc. 30 October 2006 Bradley W. Crawshaw Vinje & Middleton Engineering, Inc. 2450 Vineyard Avenue Escondido, CA 92029 RE: Tabata Farms - 2311 Camino Hills Dr. Enclosed are the results of analyses for samples received by the laboratory on 10/24/06 11:15. If you have any questions concerning this report, please feel free to contact me. Sincerely, Maria Bonifacio Project Coordinator 3002 Dow Avenue. Suite 212, Tustin, CA 92780 Phone (714)505-4010 Fax (714) 505-4028 SunStar Laboratories, Inc. 3002 DowAve.. Ste. 212 Tustin, CA 92780 714-505-4010 Chain of Custody Record Client: Page:. Gf \/u^<^ ^ H 16'C) \e.\-dv\ /rnc^,JSvr . Date: \ol%.=^\cL Address:, •^•>S'0 V^i^tT-JcW 4^ • F^Cpwcl ^^^T" C/\ Project Name: Talo.. Ftf.'v. ^ --jl3 f f r'a.^^.i^c t-l. (h 0 74>o • 7 3>' • o^'r.? Collector: &- C-r^u^s. Client Proiect #: O o -S - H Phone: •lt^:c_7/(-? , ] -j^y^ Fax: Project Manager:, Sample ID Date Sampled Time Sample Type Container Type ><s<: it o EDF #: Q o o ro Comments/Preservative X ?7 -3^ 5^-7 6 Relinqj^i^ed by: (signa £21 Received by; (signature) Date / Time Date / Time 'OCo ReceivecUoy: (signature) Dale / Time Received by: (sigr Total # of containers Chain of Custody seals Y(j5^A Seals intact? Y/N/rt^ Received good condifion/cold 7 Notes Date / Time Turn around time: S'h^ ^ <V J Vinje & Middleton Engineering, Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported: Escondido CA, 92029 Project Manager: Bradley W. Crawsiiaw 10/30/06 11:31 AiVALVTICAL REPORT FOR SAMPLES Sample ID Laboratory- ID yiatrix Date Sampted Dare Received SS-1 T601462-01 Soil 10/23/06 10:37 10/24/06 U:15 SS-2 T601462-02 Soil 10/23/06 11:02 10/24/06 11:15 SS-3 T601462-03 Soil 10/23/06 12:47 10/24/06 11:15 SS-4 T601462-04 Soil 10/23/06 13:08 10/24/06 11:15 SS-5 T601462-05 Soil 10/23/06 13:22 10/24/06 11:15 SS-6 T601462-06 Soil 10/23/06 13:34 10/24/06 11:15 SS-7 T601462-07 Soil 10/23/06 13:56 10/24/06 11:15 SunStar Laboratories, Inc. The results in this report apply lo the samples analyzed in accordance with the cham of custody document. This analytical report musl be reproduced in ils entirety. Maria Bonifacio, Project Coordinator Page I of 12 Vinje & Middleton Engineering, Inc. 2450 Vineyard Avenue Escondido CA, 92029 Project: Tabata Farms - 2311 Camino Hills Dr. Project Number: 06-203-H Project Manager; Bradley W. Crawshaw Reported: 10/30/06 11:31 Purgeable Petroleum Hydrocarbons by EPA 8015m SunStar Laboratories, Inc. Analyte Reporting Result Limit Units Dilution Batch Prepared Analyzed Method Note: S5-1 (T601462-01)Soil Sampled: 10/23/06 10:37 Received: 10/24/06 11:15 C6-C12(GR0) ND 500 ug/kg 6102409 10/24/06 10/24/06 EPA 8015m Surrogate: 4-BromofluorQbenzene 95.2 % 65-135 SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report musl be reproduced in ils entirety. Maria Bonifacio, Projecl Coordinator Page 2 of 12 Vinje & Middleton Engineering, Inc. 2450 Vineyard Avenue Escondido CA, 92029 Project: Tabata Farms - 2311 Camino Hills Dr. Project Number: 06-203-H Project Manager: Bradley W. Crawshaw Reported: 10/30/06 11:31 Extractable Petroleum Hydrocarbons by 8015 SunStar Laboratories, Inc. Analyte Reporting Result Limit Units Dilution Batch Prepared Analyzed Method Note: SS-1 (7601462-01) Soil Sampled: 10/23/06 10:37 Received: 10/24/06 11:15 Diesel Range Hydroc^i^ns^ Surrogate: Chrysene ND 5.0 mg/kg 6102502 10/25/06 10/27/06 EPA 8015m 120% 65-135 SunStar Laboratories, Inc. The results in this report apply lo the samples analyzed in accordance wilh the chain of custody document. This analytical report musl be reproduced in ils entirely. Maria Bonifacio, Project Coordinator Page 3 of 12 Vinje & Middleton Engineering, Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported: Escondido CA. 92029 Project Manager: Bradley W. Crawshaw 10/30/06 11:31 Organochlorine Pesticides by EPA Method 8081A SunStar Laboratories, Inc. Rcponmg Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note; SS-2 (T601462-02)SoiI Sampled: 10/23/06 11:02 Received: 10/24/06 11:15 alpha-BHC ND 5.0 ug/kg 1 6102410 10/24/06 10/25/06 EPA 8031A gamma-BHC (Lindane) NT) 5.0 • beta-BHC ND 5.0 " delta-BHC ND 5.0 • - Heptachlor ND 5.0 K - Aldrin ND 5.0 Heptachlor epoxide ND 5.0 - gamma-Chlordane ND to " " * alpha-Chlordane ND to " " Endosulfan I ND 5.0 .1 1. 4,4'-DDE ND 5.0 • " Dieldrin ND 5.0 • Endrin ND 5.0 • • - 4.4'-DDD ND 5.0 Endosulfan H ND 5.0 4,4'-DDT ND 5.0 • Endrin aldehyde ND 5.0 N • - Endosulfan sulfate ND 5.0 •\ " Methoxychlor ND 10 !• t. • • •' Endrin ketone ND 5.0 " • •* Toxaphene ND 200 - • Surrogate: Tetracfiloro-meta-xyiene 130% 35-140 SS-3 {T60I462-03) Soil Sampled: 10/23/06 12:47 Received: 10/24/06 11:15 alpha-BHC ND 5.0 ug/kg 1 6102410 10/24/06 10/25/06 EPA 8081A gamma-BHC (Lindane) ND 5.0 beta-BHC ND 5.0 " " • delta-BHC ND 5.0 • - Heptachlor ND 5.0 • Aldrin ND 5.0 " " • Heptachlor epoxide ND 5.0 - gamma-Chlordane ND 10 " " alpha-Chlordane ND 10 1. K * Endosulfan 1 ND 5.0 " " • 4,4'-DDE ND 5.0 1. ,. • Dieldrin ND 5.0 ,. Endrin ND 5.0 '• 4.4'-DDD ND 5.0 I. Endosulfan II ND 5.0 .. • 4,4-DDT ND 5.0 .. " • Endrin aldehyde ND 5.0 " " Endosulfan sulfate ND 5.0 " " SunStar Laboratories, Inc. Maria Bonifacio, Project Coordinator The results in this report apply lo the samples analyzed in accordance wilh the chain of custody documenl. This analytical report musl be reproduced in its enfirety. Page 4 of 12 Vinje & Middleton Engineering, Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported; Escondido CA, 92029 Project Manager: Bradley W. Crawshaw 10/30/06 11:31 Organochlorine Pesticides by EPA JMethod 8081A SunStar Laboratories, Inc. Analyte Reporting Result Limit Units Dilution Batch Prepared Analyzed Method Note; SS-3 (T601462-03) Soil Sampled: 10/23/06 12:47 Received: 10/24/06 11:15 Metho\7chlor Endrin ketone Toxaphene ND !0 ug/kg 1 ND 5.0 " ND 200 " 6102410 10/24/06 10/25/06 EPA 8081A Surrogate: Tetrachloro-meia-xylene 127% 35-140 SS-4 (T60I462-04)Soil Sampled: 10/23/06 13:08 Received: 10/24/06 11:15 alpha-BHC gamma-BHC (Lindane) beta-BHC delta-BHC Heptachlor Aldrin Heptachlor epoxide gamma-Chlordane alpha-Chlordane Endosulfan I 4,4'-DDE Dieldrin Endrin 4,4'-DDD Endosulfan II 4.4'-DDT Endrin aldehyde Endosulfan sulfate Methoxychlor Endrin ketone Toxaphene Surrogate: Tetrachloro-meta-xylene ND 5.0 ug/kg [ 6102410 10/24/06 10/25/06 EPA 8081A ND 5.0 • ND 5.0 - ND 5.0 - ND 5.0 - ND 5.0 - ND 5.0 • - ND 10 ND 10 ND 5.0 " ND 5.0 ND 5.0 ND 5.0 • ND 5.0 " " ND 5.0 • ND 5.0 • ND 5.0 ND 5.0 " - ND 10 ND 5.0 • ND 200 • 121 % 35-140 The results in this report apply to the samples analyzed in accordance with the chain of custody documenl. This analytical report must be reproduced in its eniireiy. SunStar Laboratories, Inc. Maria Bonifacio, Project Coordinator Pages of 12 Vinje & Middleton Engineering, Inc. Project: Tabata Fanns - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported: Escondido CA, 92029 Project Manager: Bradley W. Crawshaw 10/30/06 11:31 Organochlorine Pesticides by EPA Method 8081A SunStar Laboratories, Inc. Reportmg Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note; SS-5(T601462-05) Soil Sampled: 10/23/06 13:22 Received; 10/24/06 11:15 alpha-BHC ND 5.0 ug/kg 1 6102410 10/24/06 10/25/06 EPA 808IA gamma-BHC (Lindane) ND 5.0 beta-BHC ND 5.0 • 1 N delta-BHC ND 5.0 Heptachlor ND 5.0 Aldrin ND 5.0 " " Heptachlor epoxide ND 5.0 • gamma-Chlordane ND 10 " alpha-Chlordane ND 10 - n Endosulfan I NT) 5.0 4.4-DDE ND 5.0 h • Dieldrin m 5.0 * Endrin ND 5.0 4,4-DDD NT) 5.0 Endosulfan II ND 5.0 n 4,4'-DDT NT) 5.0 - Endrin aldehyde ND 5.0 Endosulfan sulfate ND 5.0 " Methoxychlor ND 10 Endrin ketone NT) 5.0 Toxaphene ND 200 Surrogate: Tetrachloro-meta-xyiene 126 % 35-140 SS-6 (T60I462-06)Soil Sampled: 10/23/06 13:34 Received: 10/24/06 11:15 alpha-BHC ND 5.0 ug/kg 1 6102410 10/24/06 10/25/06 EPA 8081A gamma-BHC (Lindane) ND 5.0 " " beta-BHC ND 5.0 delta-BHC 5.0 - . Heptachlor ND 5.0 Aldrin ND 5.0 " - Heptachlor epoxide ND 5.0 gamma-Chiordane ND 10 H " - alpha-Chlordane ND iO " " - n Endosulfan I ND 5.0 " 4,4-DDE ND 5.0 1. Dieldrin ND 5.0 N II Endrin ND 5.0 H 4,4'-DDD ND 5.0 1. n Endosulfan II ND 5.0 " 4,4'-DDT ND 5.0 " " " Endrin aldehyde ND 5.0 " " " Endosulfan sulfate ND 5.0 SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report musl be reproduced in its enlirety. Maria Bonifacio, Project Coordinator Page 6 of 12 Vinje & Middleton Engineering, Inc. 2450 Vineyard Avenue Escondido CA, 92029 Project: Tabata Farms - 2311 Camino Hills Dr. Projecl Number; 06-203-H Project Manager: Bradley W. Crawshaw Reported: 10/30/06 11:31 Organochlorine Pesticides by EPA Method 8081A SunStar Laboratories, Inc. Analyte Reporting Result Limit Units Dilution Batch Prepared Analyzed Method Note! SS-6 (T601462-06) Soil Sampled: 10/23/06 13:34 Received: 10/24/06 11:15 Methoxychlor ND 10 ug/kg 1 6102410 10/24/06 10/25/06 EPA 8081A Endrin ketone NT) 5.0 • Toxaphene NT) 200 - Surrogate: Tetrachloro-hteta-xylene 117% 35-140 SS-7 (T601462-07) Soil Sampled: 10/23/06 13:56 Received: 10/24/06 11:15 alpha-BHC ND 5.0 ug/kg I 6102410 10/24/06 10/25/06 EPA 8081A gamma-BHC (Lindane) ND 5.0 " '• • beta-BHC ND 5.0 delta-BHC ND 5.0 ,1 - - Heptachlor ND 5.0 - • • Aldrin ND 5.0 • • Heptachlor epoxide ND 5.0 gamma-Chlordane ND 10 • alpha-Chlordane ND 10 Endosulfan I ND 5.0 4,4'-DDE ND 5.0 Dieldrin ND 5.0 » Endrin ND 5.0 - 4,4-DDD ND 5.0 1. • Endosulfan TI ND 5.0 4,4-DDT ND 5.0 Endrin aldehyde ND 5.0 • Endosulfan sulfate ND 5.0 " 1. Methoxychlor ND 10 - Endrin ketone ND 5.0 Toxaphene ND 200 - Surrogate: Tetrachloro-meta-xylene 119% 35-140 SunStar Laboratories, Inc. Maria Bonifacio, Project Coordinator The results in lhis report apply to the samples analyzed in accordance wilh the chain of custody document. This analytical report must be reproduced in its entirely. Page 7 of 12 Vinje & Middleton Engineering. Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avftnue Project Number: 06-203-H Reported: Escondido CA. 92029 Project Manager: Bradley W. Crawshaw 10/30/06 11:31 Purgeable Petroleum Hydrocarbons by EPA 8015m - Quality Control SunStar Laboratories, Inc. Reporting Spike Source %REC RPD Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes Batch 6102409 - EPA 5035 GC Blank (6102409-BLKl) C6-C12(GR0) Surrogate: 4-Bromofluorobenzene LCS (61Q24Q9-BS1)_ C6-C12(GRO) ND 500 ug/kg Prepared & Analyzed: 10/24/06 115 ns 92.0 65-135 Surrogate: 4-Bromofluorobenzene Matrix Spike (61024Q9-MS1) C6-C12(GRO) Surrogate: 4-Bromofluorobenzene '^!?.l"JL?£!l*? .'?fi£j6l02409-MSDO^ C6-Cr2(GRO) Surrogate: 4-Bromofluorobenzene Prepared & Analyzed: 10/24/06 _ 13900 SOO ug/k| 13800 101 75-125 J22 " 125 97.6 65-135 Source: T601462-01 Prepared & Analyzed: 10/24/06 10300 500 ug/kg 13800 ND 74.6 65-135 140 Source: T601462-01 125 112 6S-I35 Prepared & Analyzed: 10/24/06 10700 500 ug/kg 13800 ND 77,5 65-135 127 125 102 65-135 3 81 20 SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain af custody documenl. This analytical report musl be reproduced in its entirely. Maria Bonifacio, Project Coordinator Page 8ofi2 Vinje & Middleton Engineering, Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported: Escondido C.A, 92029 Project Manager: Bradley W. Crawshaw 10/30/06 11:31 Extractable Petroleum Hydrocarbons by 8015 - Qualitj' Control SunStar Laboratones, Inc, Reporting Spike Source %R£C RPD Analyte Result Limit Units Level Result %R£C Limiu RPD Limit Notes Batch 6102502 - EPA 3550B GC B b n k_( 61025Q2jLKl) Diesel Range Hydrocarbons Prepared: 10/25/06 Analyzed: 10/26/06 ND 5.0 mg/Tcg Surrogate: Chrysene LCS.(6102502-BSI) Dicsci Range Hydrocarbons Surrogate: Chrysene Matrix S^ikc_(6lOJ502-MSl) Dicsci Range Hydrocarbons Surrogate' Chrysene Matrix Spike Dup (6102502-MSDl) Dicsci Range Hydrocarbons Surrogate: Chrysene 105 450 100 105 65-135 Prepared: 10/25/06 Analyzed: 10/27/06 3.0 mg/kg 500 90.0 75-125 101 Source^T601461-2t 500 5,0 mg/kg 7/0 100 101 65-135 Prepared: 10/25/06 Analyzed: 10/27/06 500 100 52 S9.6 110 75-125 65-137 490 Source: T601461-21 Prepared: 10/25/06 Analyzed: 10/27/06 "5.0 "mg/kg 500 52 87.6 75-125 2.02 20 108 100 108 65-135 SunSiar Laboratories, Inc. The resuhs in this report apply lo the samples analyzed in accordance wilh the chain of custody document. This analytical report musl be reproduced in its entirety Maria Bonifacio, Project Coordinator Pase9 of 12 Vinje &. Middleton Engineering, Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue ProjecC Number: O6-20J-H Reporled: Escondido CA, 92029 Project Manager: Bradley \V. Crawshaw 10/30/06 11:31 Organochlorine Pesticides by EPA Method 8081A - Qualit>' Control SunStar Laboratones, Inc. Reporting Spike Source roREC RPD Anaiyte Result Limit Units Level Result %REC Limits RPD Limit Notes Butch 6102410 - EPA 3550 ECD/GCMS Bhnk(6102410-BLK1) Prepared: 10/24/06 Analyzed: 10/25/06 alpha-BHC ND 5.0 ug/kg gamma-BHC (Lindane) • ND 5.0 beta-BHC ND 5.0 • delta-BHC ND 5.0 Heptachlor ND 5.0 Aldrin ND 5.0 Heptachlor epoxide ND 5.0 gamma-Chlordanc ND 10 alpha-Chlofdane ND 10 • Endosulfan I ND 5.0 - 4,4'-DDE ND 5.0 - Diftldrin ND 5.0 • Endrin ND 5.0 4,4-DDD ND 5.0 • Endosulfan 11 ND 5.0 • 4,4'-DDT ND 5.0 Endrin aldehyde ND 5.0 Endosulfan sulfate ND 5.0 •* MethoJtychlor ND 10 Endrin ketone ND 5.0 • Tojtaphene ND 200 Surrogate: Tetrachloro-meta-xylene 109 100 109 35-140 LCS (6102410-BSl) Prepared: 10/24/06 Analyzed: 10/25/06 gamma-BHC (Lindane) 91! 5.0 ug/kg 125 72.9 40-120 Heptachlor 113 S.O 125 90 4 40-120 Aldrin 123 5.0 • 125 102 40-120 Dicidrin 320 5.0 313 102 40-120 Endrin 263 5.0 • 313 84.0 40-120 4.4'-DDT 151 5,0 313. 43.2 40-120 Surrogate: Tetrachloro-tneta-xylene 107 100 107 35-140 SunStar Laboratories, Inc. Maria Bonifacio, Project Coordinator The resuhs in this report apply la the samples analyzed in accordance wilh the chain of custody document. This analytical report musl be reproduced in ils enlirety. Page 10 of 12 Vinje & Middleton Engineering, Inc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported: Escondido CA, 92029 Project Manager: Bradley W. Crawshaw 10/30/06 11:31 Organochlorine Pesticides by EPA Method 8081A - Qualitj- Control SunStar Laboratories, Inc. Analyte Result Reporting Limit Units Spike Level Source ResuU %REC %REC Limits RPD RPD Limit Notes Batch 6102410 - EPA 3550 ECD/GCMS Matrix Spike (6102410-MSI) Source: T601462-02 Prepared: 10/24/06 Analyzed: 10/25/06 gamma-BHC (Lindane) 110 5.0 ug/kg 125 ND 88.0 30-120 Heptachlor 146 5.0 * 125 ND 117 30-120 Aldrin 148 5,0 125 ND 113 30-120 Dieldrin 367 5.0 • 313 ND 117 30-120 Endrin 339 5,0 • 313 ND 108 30-120 4,4-DDT 208 5.0 -313 ND 66.5 30-120 Surrogate: Tetrachloro-meta-xylene 130 too 130 35-140 "^liLf C'^ .SpL*te_Dup (6102410-MSD1) ource:T601462-02 Prepared: 10/24/06 Analyzed 10/25/06 gamma-BHC (Lindane) no" 5,0 ug/kg 125 ND 104 30-120 16.7 30 Heptachlor 147 5.0 125 ND 118 30-120 0 851 30 Aldrin 149 5.0 -125 ND 119 30-120 0.844 30 bieldrin 363 5.0 -313 ND 116 30-120 0.858 30 Endrin 376 5.0 -313 ND 120 30-120 105 30 4.4-DDT 241 5.0 • 313 ND 77.0 30-120 14.6 30 Surrogate: Tetrach loro-me la-xylene 139 -100 139 35-140 SunStar Laboratones, Inc. The results in this report apply to ths samples analyzed in accordance iv/th the chain of custody documenl. This analytical report must be reproduced in ils entirety. Maria Bonifacio, Project Coordinator Paae 11 ofl2 Vinje & Middleton Engineering, lnc. Project: Tabata Farms - 2311 Camino Hills Dr. 2450 Vineyard Avenue Project Number: 06-203-H Reported: Escondido CA. 92029 Project Manager: Bradley \V. Crawshaw 10/30/06 11:31 Notes and Definitions DET Analyte DETECTED ND Analyte NOT DETECTED at or above the reporting limit NR Not Reported dry Sample results reported on a dry weight basis RPD Relative Percent Difference SunStar Laboratories, Inc. The resuhs in this report apply lo the samples analyzed in accordance with lhe chain of custody document. This analytical report must be reproduced in its entirety. Maria Bonifacio, Project Coordinator Page 12 of 12 APPENDIX "B" REFERENCES Delorme, Topo USA, 2002 Scale: 1:100,000 SunStar Laboratories, Inc., Analytical Report. Tabata Farms-2311 Camino Hills Drive, Carlsbaci, CA. 10/30/2006. USGS, California Division of Mines & Geology, Open File Report 82-12A, North-Coastal San Diego County Area, July 1981-July 1982. Vinje & Micddleton Engineering, Inc., 2006; Preliminary Geotechnical Investigation, Proposed 26-Lot Subdivision, Camino Hills Drive, Carisbad, California (APN's: 212-050-32 & 33, June 23. Vinje & Middleton Engineering, Inc., 2006; Phase I ESA Report, 2311 Camino Hills Drive. Carlsbad. California. APN's: 212-050-32 & -33, April 27. Win2Data, Assessors Parcel Maps & Ow/nership Records, San Diego County Assessor's Map Book 166 Page 15.