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41) (408) <br /> Sequoia 885 Jarvis Drive <br /> Morgan Hill CA 95037 <br /> Analytical 776-9600 <br /> FAX(408) 782-6308 <br /> Blaine Tech Services(Chev) Project Chevron 9-9840(4344 Waterloo Rd,Stockton) Sampled 12/3/99 <br /> 1680 Rogers Avenue Project Number 991203 R-3 Received 12/6/99 <br /> San Jose CA 95112 Project Manager Scott Boor Reported 12/16/99 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A/Quality Control <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % No <br /> t <br /> e] <br /> Batch 9120045 Date Prepared 12/9/99 Extraction Method EPA 5030B JP/Tl <br /> Blank 9120045-BLK1 _ <br /> Ethanol 12/9/99 ND ug/l 1000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tent-butyl ether " ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 12-Drchloroethane-d4 500 454 760-114 908 <br /> Blank 9120045-BLK2 <br /> Ethanol 12/13/99 ND ug/l 1000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> 10opropyl ether ,I ND f 2 00 <br /> 1 ter-L-butyl ether ND 200 <br /> Tert-amyl methyl ether _ _ ND 200 <br /> Surrogate I 2-Dichloroethane-d4 500 428 760-114 856 <br /> LCS 9120045-BS1 <br /> Methyl tent-butyl ether 12/9199 500 45 4 ug/l 700-130 908 <br /> Surrogate 1 2-Drchloroethane-d4 " 500 469 760-114 938 <br /> LCS 9120045-BS2 <br /> Methyl Cert-butyl ether 12/13/99 500 449 ug/l 700-130 898 <br /> Surrogate 1 2 Drchloroethane-d450 0 438 760-114 876 <br /> Matrix Spike 9120045-MS1 L912055-03 <br /> Methyl tert-butyl ether 12/9/99 500 8 52 52 5 ug/l 600-140 880 <br /> Surrogate 12-Drchloroethane-d4 500 458 760-114 916 <br /> Matrix Spike Dup 9120045-MSD1 L912055-03 <br /> Methyl tert-butyl ether 12/9199 500 852 53 2 ug/l 600-140 894 250 1 58 <br /> Surrogate 12-Drchloroethane-d4 500 44-5 760-114 890 <br /> Sequoia Analytical- Morgan Full *Refer to end of report for text of notes and definruons <br /> Page 7 of 8 <br />