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14 Sequoia <br />wo <br />Analytical <br />819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />(916) 921-9600 <br />FAX (916) 921-0100 <br />www.sequoialabs.com <br />Kleinfelder - Stockton Project: Granite Burnpile <br />2825 East Myrtle Street Project Number: 20-1108-33 Reported: <br />Stockton CA, 95205 Project Manager: Doug Heard 08/15/01 17:24 <br />Semivolatile Organic Compounds by EPA Method 8270C - Quality Control <br />Sequoia Analytical - Walnut Creek <br />Reporting Spike Source %REC RPD <br />Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 1H02022 - EPA 3550B Sonication <br />Blank (1H02022-BLKI) <br />Prepared: 08/02/01 Analyzed: 08/04/01 <br />2,4-Dinitrotoluene <br />ND <br />0.20 mg/kg <br />2,6-Dinitrotoluene <br />ND <br />0.20 " <br />Di-n-octyl phthalate <br />ND <br />0.20 " <br />Fluoranthene <br />ND <br />0.10 " <br />Fluorene <br />ND <br />0.10 " <br />Hexachlorobenzene <br />ND <br />0.20 " <br />Hexachlorobutadiene <br />ND <br />0.20 " <br />Hexachlorocyclopentadiene <br />ND <br />0.20 " <br />Hexachloroethane <br />ND <br />0.20 " <br />Indeno (1,2,3 -cd) pyrene <br />ND <br />0.10 " <br />Isophorone <br />ND <br />0.20 " <br />2 -Methylnaphthalene <br />ND <br />0.20 " <br />2-Methylphenol <br />ND <br />0.10 " <br />4-Methylphenol <br />ND <br />0.10 " <br />Naphthalene <br />ND <br />0.10 " <br />2-Nitroaniline <br />ND <br />0.50 " <br />3-Nitroaniline <br />ND <br />0.50 " <br />4-Nitroaniline <br />ND <br />0.50 " <br />Nitrobenzene <br />ND <br />0.20 " <br />2-Nitrophenol <br />ND <br />0.10 " <br />N-Nitrosodimethylamine <br />ND <br />0.10 " <br />4-Nitrophenol <br />ND <br />0.50 " <br />N-Nitrosodiphenylamine <br />ND <br />0.20 " <br />N-Nitrosodi-n-propylamine <br />ND <br />0.10 " <br />Pentachlorophenol <br />ND <br />0.50 " <br />Phenanthrene <br />ND <br />0.10 " <br />Phenol <br />ND <br />0.10 " <br />Pyrene <br />ND <br />0.20 " <br />1,2,4-Trichlorobenzene <br />ND <br />0.20 " <br />2,4,5 -Trichlorophenol <br />ND <br />0.10 " <br />2,4,6 -Trichlorophenol <br />ND <br />0.10 " <br />Surrogate: 2-Fluorophenol 3.69 5.00 73.8 25-121 <br />Surrogate: Phenol -d6 3.82 5.00 76.4 24-113 <br />Surrogate: Nitrobenzene -d5 2.37 3.33 71.2 23-120 <br />Surrogate:2-Fluorobiphenyl 2.92 3.33 87.7 30-115 <br />Sequoia Analytical - Sacramento 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 16 of 20 <br />