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Sequoia 819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />(916)921-9600 <br />Analytical fAX (916) 921-0100 <br />FAX <br />Kleinfelder - Stockton <br />Project: <br />1444 Mariposa <br />S309079 <br />2825 East Myrtle Street <br />Project Number: <br />34202 <br />Reported: <br />Stockton CA, 95205 <br />Project Manager: <br />Francis Bean <br />.09/09/03 16:14 <br />- Volatile Organic Compounds by EPA Method 8260B.- Quality, Control <br />Sequoia Analytical - Sacramento <br />Reporting Spike . Source %REC RPD <br />Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 3080408 - EPA 5030B [P/TJ <br />Blank (3080408-BLKI) Prepared & Analvzed: 08/29/03 <br />p-Isopropyltoluene <br />ND <br />0.0050 mg/kg <br />chloride <br />ND <br />0.025 " <br />r-Methylene <br />Methyl tert-butyl ether <br />ND <br />0.0050 <br />aphthalene <br />ND <br />0.0050 <br />n-Propylbenzene <br />ND <br />0.0050 <br />60-140 <br />LStyrene <br />ND <br />0.0050 " <br />I,1,1,2-Tetfachloroethane <br />ND <br />0.0050 " <br />1,1,2,2 -Tetrachloroethane <br />ND <br />0.0050 " <br />Tetrachloroethene <br />ND <br />0.0050 " <br />Toluene <br />ND <br />0.0050 <br />1,2,3-Trichlorobenzene <br />ND <br />0.0050 <br />1,2,4-Trichlorobenzene <br />ND <br />0.0050 " <br />11,1 -Trichloroethane <br />ND <br />0.0050 " <br />,1,2 -Trichloroethane <br />ND <br />0.0050 " <br />Trichloroethene <br />ND <br />0.0050 " <br />L`richlorofluoromethane <br />ND <br />0.025 " <br />1,2,3-Trichloropropane <br />ND <br />0.0050 " <br />1,2,4-Trimethylbenzene . <br />ND <br />0.0050 " <br />1,3,5-Trimethylbenzene <br />ND <br />0.0050 ; <br />Vinyl chloride <br />ND <br />0.025 <br />m,p-Xylene <br />ND <br />0.0050 " <br />ND <br />0.20 <br />4Ethanol <br />ert-amyl methyl ether <br />ND <br />0.0050 <br />thyl tert-butyl ether <br />ND <br />0.0056 <br />Di -isopropyl ether <br />ND <br />0.0050 " <br />CPert -butyl alcohol <br />ND <br />0.050 <br />05'urrogate: DibromoJluoromethane <br />.Surrogate: 1,2 -DCA -d4 <br />LLurrogate: Toluene -d8 <br />surrogate: 4 -BFB <br />Sequoia Analytical - <br />L <br />I <br />0.0448 <br />0.0500 <br />90 <br />60-140 <br />0.0450 <br />0.0500 <br />90 <br />60-140 <br />0.0464 <br />0.0500 <br />93 <br />60-140 <br />0.0464 <br />0.0500 <br />93 <br />60-140 <br />t <br />The results in this report apply to the samples analyzed in accordance with the chaino( <br />custody document. Unless otherwise stated, results are reported on a wet weight basis. <br />This analytical report must be reproduced in its entirety. <br />0 <br />Page 13 of 17 <br />