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Sequoia 1551 f al Road <br /> San Carlos <br /> los CCA 94074 <br /> & Analytical (650)232 9600 <br /> FAX(650)232-9612 <br /> www u quoialabs com <br /> Fb47 <br /> ler-Ryan/Geostrategies(l} Project Unoca](4) <br /> Sierra Court,Suite J Project Number Fortner Unocal#+5098, Stockton Reported <br /> lip CA,94568 Project Manager Deanna Harding 07/0I/02 07 46 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - San Carlos <br /> Analyte Reporting Spike Source %REC RPD <br /> Result Lnnrt Units Level Result %REC l.rmits RPD Luna Notes <br /> ttch 2060034-EPA 5030B PIT <br /> nk(2060034-B1 Kl) Prepared&Analyzed 06/21/02 <br /> -Drchloroethane ND 2 0 ugll <br /> -Dichloroethene ND 20 " <br /> -1,2-Dichloroethene ND 2 0 " <br /> trans-l,2-Dichloroethene ND 20 " <br /> -Dichloropropane ND 20 <br /> -Dichloropropane ND 20 <br /> 2,2-Dichloropropane ND 20 „ <br /> tDich;oropropent ND 20 „ <br /> ylbenzene ND 20 „ <br /> Hexachlorobutadiene ND 20 " <br /> ropylbenzene ND 20 " <br /> opropyltoluene ND 20 <br /> Methylene chloride ND 50 " <br /> alene ND 5 0 " <br /> (benzene ND 20 " <br /> enc ND 20 „ <br /> 111,2-Tetrachloroethane ND 20 " <br /> lf2-Tetrachloroethane ND 20 <br /> achloroethene ND 20 " <br /> Toluene ND 20 " <br /> t-Trichlorobenzene ND 20 <br /> -Triehlorobenzene ND 20 „ <br />,1,1-Trichloroethane ND 20 " <br /> if-Trichloroethane ND 20 <br /> loroethene ND 20 „ <br /> nchloro$uoromethane ND 50 ^ <br /> -Trichloropropane ND 20 „ <br /> -Trimethylbenzene ND 20 <br /> „ <br /> 05-Trimethylberizene ND 20 " <br /> tchloride ND 20 u <br /> 1 <br /> i Xylenes ND 20 " <br /> urrogate 1,2-Drchloroethane-d4 106 100 106 76-114 <br /> irrogate Toluene-d8 10 2 100 101 88-110 <br /> gate 4-BFB 906 100 906 86-115 <br /> ota Analytical- San Carlos 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 to its entirety <br /> r <br /> Page 91 of 103 <br /> r <br />