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®la ® 1455 McDowell Blvd. Noah Ste. . <br />Petaluma, CA 949544 <br />(707)792-1865 <br />FAX (707) 792-2 <br />Analytical www.sequoial bscom <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 12/12/00 11:01 <br />Volatile Organic Compounds by EPA Method 8021B - 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 0110657 - EPA 5030, soils McOH <br />Blank (0110657-BLKI) <br />Prepared & Analyzed: 11/28/00 <br />Surrogate. Bromochloromethane <br />4.00 mg/kg 3.00 133 65-135 <br />Surrogate: a,a,a-Tri�luorotoluene <br />3.44 3.00 115 65-135 <br />Surrogate:l,4-Dichlorobutane <br />3.24 3.00 108 65-135 <br />_LCS (0110657 -BSI) <br />3.30 <br />Prepared & Analyzed: 11/28/00 <br />Benzene <br />0.999 <br />0.0500 <br />mg/kg 1.00 99.9 65-135 <br />Chlorobenzene <br />1.11 <br />0.0500 <br />1.00 111 65-135 <br />I,1-Dichloroethene <br />0.962 <br />0.0500 <br />" 1.00 96.2 65-135 <br />Toluene <br />1.01 <br />0.0500 <br />1.00 101 65-135 <br />Trichloroethene <br />1.05 <br />0.0500 <br />1.00 105 65-135 <br />Surrogate: Bromochloromethane <br />3.30 <br />3.00 <br />110 <br />65-135 <br />Surrogate: a,a,a-Tris luorotoluene <br />3.40 <br />3.00 <br />113 <br />65-135 <br />Surrogate:l,4-Dichlorobutane <br />2.98 <br />3.00 <br />99.3 <br />65-135 <br />Matrix Spike (0110657-MS1) <br />Source: P011665-01 <br />Prepared & Analyzed: 11/28/00 <br />Benzene <br />0.928 <br />0.0500 mg/kg <br />1.00 <br />ND <br />92.8 <br />65-135 <br />Chlorobenzene <br />1.01 <br />0.0500 <br />1.00 <br />ND <br />101 <br />65-135 <br />1,1-Dichloroethene <br />0.941 <br />0.0500 <br />1.00 <br />ND <br />94.1 <br />65-135 <br />Toluene <br />0.943 <br />0.0500 " <br />1.00 <br />ND <br />94.3 <br />65-135 <br />Trichloroethene <br />0.961 <br />0.0500 <br />1.00 <br />ND <br />96.1 <br />65-135 <br />Surrogate. Bromochloromethane <br />3.11 <br />3.00 <br />104 <br />65-135 <br />Surrogate: a a,a-Trifluorotoluene <br />3.09 <br />3.00 <br />103 <br />65-135 <br />Surrogate.1,4-Dichlorobutane <br />2.76 <br />3.00 <br />92.0 <br />65-135 <br />Matrix Spike Dup (0110657-MSDI) <br />Source: P011665-01 <br />Prepared & Analyzed: 11/28/00 <br />Benzene <br />0.931 <br />0.0500 mg/kg <br />1.00 <br />ND <br />93.1 <br />65-135 <br />0.323 35 <br />Chlorobenzene <br />1.01 <br />0.0500 <br />1.00 <br />ND <br />101 <br />65-135 <br />0 35 <br />1,1-Dichloroethene <br />0.882 <br />0.0500 <br />1.00 <br />ND <br />88.2 <br />65-135 <br />6.47 35 <br />Toluene <br />0.941 <br />0.0500 <br />1.00 <br />ND <br />94.1 <br />65-135 <br />0.212 35 <br />Trichloroethene <br />0.908 <br />0.0500 <br />1.00 <br />ND <br />90.8 <br />65-135 <br />5.67 35 <br />Surrogate: Bromochloromethane <br />3.14 <br />" <br />3.00 <br />105 <br />65-135 <br />Surrogate: a, a, a-Trifluorotoluene <br />3.06 <br />3.00 <br />102 <br />65-135 <br />Surrogate:l,4-Dichlorobutane <br />2.80 <br />3.00 <br />93.3 <br />65-135 <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 17 of 19 <br />