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1455 McDowell Blvd North,Ste D <br /> Sequoia Petaluma,CA 94954 <br /> (707)792-1865 <br /> FAX(707)792-0342 <br /> Analytical www sequoialabs com <br /> Cambna Environmental Project Equiva 5-7d <br /> 270 Perkins St Project Number 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 Lima Units Level Result %REC Limits RPD Limit Notes <br /> Batch 0110346-EPA 5030 waters <br /> LCS(0)10346-BSI) Prepared 11/13/00 Analyzed 11/14/00 <br /> Methyl ten-butyl ether 481 0 500 ug/l 500 962 79-118 <br /> Surrogate Dibromofluoromethane 511 500 102 88-118 <br /> Surrogate 12-Dichloroethane-d4 514 500 103 81-130 <br /> Surrogate Toluene-d8 495 500 990 84-115 <br /> Matnx Spike(0110346-MSI) Source P011213-01 Prepared 11/13/00 Analyzed 11/14/00 <br /> Methyl tert-butyl ether 4650 500 ugA 5000 ND 905 79-118 <br /> Surrogate Dibromofluoromethane 492 300 984 88-118 <br /> Surrogate 11-Dichloroethane-d4 495 500 990 81-130 <br /> Surrogate Toluene-d8 497 500 994 84-115 <br /> Matnx Spike Dup(0 1 10346-MSD 1) Source P011213-01 Prepared 11/13/00 Analyzed 11/14/00 <br /> Methyl tert-butyl ether 4800 500 ug/I -- 5000 ND 935 79-118 317 20 <br /> Surrogate Dibromofluoromethane 505 Soo 101 88-118 <br /> Surrogate 1 2-Dichloroethane-d4 518 500 104 81-130 <br /> Surrogate Toluene-d8 497 500 994 84-115 <br /> Batch-0120141=EPA 5030 waters <br /> Blank(0120141_BLKI) _ _ _ _ __ Prepared_&Analyzed=12/07/00 <br /> Tert-amyl methyl ether ND 100 ugA <br /> Tert-butyl alcohol - -- - - - ND - — 200 --- <br /> Di-isopropyl ether ND 100 " <br /> 1,2-Dibromoethane(EDB) ND 0 500 " <br /> 1,2-Dichloroethane ND 0500 " <br /> Ethanol ND 100 <br /> Ethyl tert-butyl ether ND 100 " <br /> Methyl ten-butyl ether ND 0 500 " <br /> Surrogate Dibromofluoromethane 486 500 971 88-118 <br /> Surrogate 12-Dichloroeihane-d4 463 500 926 81-130 <br /> Surrogate Toluene-d8 506 Soo 101 84-115 <br /> Sequoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chae <br /> custody document This analytical report must be reproduced in its entirety <br /> 51 Page 33 of 41 <br />