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6 Sequoia819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />a (916)921-9600 <br />Analytical FAX (916) 921-01o0 <br />wwwsequolalabs.com <br />Kleinfelder - Stockton Project: Northbrook <br />2825 East Myrtle Street Project Number: 34202.E01 <br />Stockton CA, 95205 Project Manager: Joe Zilles . <br />Volatile Organic Compounds by EPA Method 8260B <br />Sequoia Analytical Sacramento <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed <br />S308269 <br />Reported: <br />08/20/03 17:53 <br />Method Notes <br />131-6 (5308269 -OS) Soil Sampled: 08/13/03 10:40 <br />Received: 08/13/03 16:50 <br />-Propylbenzene <br />L <br />ND <br />0.0050 <br />mg/kg 1 3080244 08/18/03 08/18/03 EPA 8260B <br />tyrene <br />ND <br />0.0050 <br />1,1,1,2 -Tetrachloroethane <br />ND <br />0.0050 <br />" <br />1,1,2,2 -Tetrachloroethane <br />ND <br />0.0050 <br />" <br />Tetrachloroethene <br />ND <br />0.0050 <br />" <br />Toluene <br />ND <br />0.0050 <br />" <br />2,3-Trichlorobenzene <br />ND <br />0.0050,2,4-Trichlorobenzene <br />l-, <br />ND <br />0.0050 <br />1,1 -Trichloroethane <br />ND <br />0.0050 <br />1,1,2 -Trichloroethane <br />ND <br />0.0050 <br />Trichloroethene <br />ND <br />0.0050 <br />" <br />Trichlorofluoromethane <br />ND <br />0.025 <br />" <br />12,3-Trichloropropane <br />ND <br />0.0050 <br />" <br />1,2,4-Trimethylbenzene <br />ND. <br />0.005.01 <br />" <br />L1,3,5-Trimethylbenzene <br />ND <br />0.0050 <br />Vinyl chloride <br />ND <br />0.025 <br />m,p-Xylene <br />ND <br />0.0050 <br />thanol <br />ND <br />0.20 <br />ert-amyl methyl ether <br />Qthyl <br />ND <br />0.0050 <br />tert-butyl ether <br />ND <br />0.0050 <br />Di -isopropyl ether <br />ND <br />0.0050 <br />alcohol <br />ND <br />0.050 <br />LTjert-butyl <br />urrogate: Dib n" <br />105 % <br />60-140 <br />Surrogate: 1,2 -DCA -d4 <br />110 % <br />60-140 <br />rrogate: Toluene -d8 <br />97% <br />60-140 <br />LUrrogate: 4 -BFB <br />106% <br />60-140 <br />L <br />Sequoia Analytical - Sacramento <br />L <br />+u <br />The results in this report apply to the samples analyzed in accordance with the chain of <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 />Page 19 of 29 <br />