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1455 McDowell Blvd North,Ste D <br /> ' Petaluma,GA 94954 <br /> Sequoia (707)792-1865FAX{707}792-0342 <br /> Analytical wwwsequatalabs coin <br /> Cambna Environmental Project Equiva 5-7d <br /> 270 Perkins St ProlectNumber 440 West Charter Way,Stockton Reported <br /> Sonoma CA,95476 Project Manager Aubrey Cool 12/12/00 07 37 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 0120141 -EPA 5030 waters <br /> Blank(0120141-BLK2) Prepared&Analyzed 12/07/00 <br /> Tent-amyl methyl ether ND 1 00 ugA <br /> Tert-butyl alcohol ND 200 " <br /> Di-isopropyl ether ND 100 " <br /> 1,2-Dibromoethane(EDB) ND 0 500 " <br /> 1,2-Dtchloroetbane ND 0 500 " <br /> Ethanol ND 100 " <br /> Ethyl tert-butyl ether ND 1 00 " <br /> Methyl tent-butyl ether ND 0 500 - <br /> Surrogate Dibromofluoromethane 486 500 972 88-118 <br /> Surrogate 1 2-Drchloroethane-d4 464 500 928 81-130 <br /> Surrogate Toluene-d8 502 500 100 84-115 <br /> ft(0120141-BSI) Prepared&Analyzed 12/07/00 <br /> thyl tert-butyl ether 443 0 500 ug/1 500 886 79-118 <br /> Surrogate Dtbromofluoromethane 485 500 970 88-118 <br /> Surrogate 11-Dichloroethane-d4 454 500 908 81-130 <br /> Surrogate Toluene-d8 506 500 101 84-115 <br /> LCS(0120141-BS2) Prepared&Analyzed 12/07/00 <br /> Methyl tent-butyl ether 450 0 500 ug/l 500 900 79-118 <br /> Surrogate Dtbromofluoromethane 479 500 958 88-118 <br /> Surrogate 12-Drchloroethane-d4 449 500 898 81-130 <br /> Surrogate Toluene-d8 497 500 994 84-115 <br /> Matrix Spike(0120141-MSI) Source P011716-31 Prepared&Analyzed 12/07/00 <br /> Methyl Cert-butyl ether 214 250 ug/l 250 ND 856 79-1.18 <br /> Surrogate Dtbromofluoromethane 488 500 976 88-118 <br /> Surrogate 11-Dichloroethane-d4 459 500 918 81-130 <br /> Surrogate Toluene-d8 508 500 102 84-115 <br /> quota Analytical-Petaluma The results to this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced to its entirety <br /> Page 34 of 41 <br />