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94954 <br />Sequoia <br />1455 McDowell Blvd. North, Ste. D <br />" V e ' y ®y a Petaluma, 79 -1865 <br />`./. 1 (707) 792-1865 <br />FAX (707) 792-0342 <br />Analytical www.sequoialabs.com <br />Cambria Environmental Project: Equiva <br />270 Perkins St. Project Number: 880 Victor Rd., Lodi, CA Reported: <br />Sonoma CA, 95476 Project Manager. Aubrey Cool 12/12/0011:01 <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 0120081 - EPA 5030 soils <br />Blank (0120081-BLKI) <br />0.0480 <br />Prepared & Analyzed: 12/05/00 <br />Tert-amyl methyl ether <br />ND <br />0.00500 mg/kg <br />Tert-butyl alcohol <br />ND <br />0.100 " <br />Di -isopropyl ether <br />ND <br />0.00500 " <br />Ethanol <br />ND <br />0.200 " <br />Ethyl tert-butyl ether <br />ND <br />0.00500 " <br />Methyl tert-butyl ether <br />ND <br />0.00500 " <br />Surrogate: Dibromofluoromethane <br />0.0480 <br />" 0.0500 <br />96.0 <br />80-120 <br />Surrogate:1,2-Dichloroethane-d4 <br />0.0470 <br />0.0500 <br />94.0 <br />80-120 <br />Surrogate: Toluene -d8 <br />0.0514 <br />0.0500 <br />103 <br />81-117 <br />LCS (0120081 -BSI) <br />_ <br />Prepared & Analyzed: 12/05/00 <br />Methyl tert-butyl ether <br />0.0530 0.00500 mg/kg <br />0.0500 106 75.8-124 <br />Surrogate: Dibromofluoromethane <br />0.0502 <br />0.0500 100 80-120 <br />Surrogate: 1,2-Dichloroethane-d4 <br />0.0504 <br />0.0500 101 80-120 <br />Surrogate: Toluene -d8 <br />0.0499 <br />0.0500 99.8 81-117 <br />Matrix Spike (0120081 -MSI) <br />Source: P011710-13 <br />Prepared & Analyzed: 12/05/00 <br />Methyl tert-butyl ether <br />0.119 0.00500 mg/kg <br />0.125 ND 95.2 75.8-124 <br />Surrogate: Dibromofluoromethane <br />0.104 <br />0.125 83.2 80-120 <br />Surrogate:l,2-Dichloroethane-d4 <br />0.107 <br />0.125 85.6 80-120 <br />Surrogate: Toluene -d8 <br />0.106 <br />0.125 84.8 81-117 <br />Matrix Spike Dnp (0120081-MSDI) <br />Source: P011710-13 <br />Prepared & Analyzed: 12/05/00 <br />Methyl tert butyl ether <br />0.119 0.00500 mg/kg <br />0.125 ND 95.2 75.8-124 0 35 <br />Surrogate: Dibromofluoromethane <br />0.108 <br />0.125 86.4 80-120 <br />Surrogate. 1,2-Dichloroethaned4 <br />0.109 <br />0.125 87.2 80-120 <br />Surrogate: Toluene -d8 <br />0.111 <br />0.125 88.8 81-117 <br />Sequoia Analytical - Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. <br />Page 18 of 19 <br />