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ID (91819 Striker Avenue,Suite 8 <br /> SequoiaSacramento,CA 95834 <br /> Analytical FAX <br /> 6)921-9600 <br /> (916)921-0100 <br /> Kleinfelder-Sacramento Project: N/A Sampled: 12/29/99 <br /> 3077 Fite Circle Project Number: 23-483849-1303 Received: 1/3/00 <br /> Sacramento,CA 95827 Project Mana er: Tim Crandall Reported: 1/18/00 <br /> Organophosphorus Pesticides by EPA Method 8141A/Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 0010278 Date Prepared: 1/11/00 Extraction Method: EPA 3550A <br /> Blank 0010278-BLKI <br /> Azinphos methyl 1/12/00 ND ug/kg 40.0 <br /> Bolstar ND 20.0 <br /> Chlorpyrifos ND 20.0 <br /> Coumaphos ND 40.0 <br /> Demeton ND 20.0 <br /> Diazinon ND 20.0 <br /> Dichlorvos ND 20.0 <br /> Disulfoton ND 20.0 <br /> Ethion ND 20.0 <br /> Ethoprop ND 20.0 <br /> EPN ND 20.0 <br /> Fensulfothion ND 20.0 <br /> Fenthion ND 20.0 <br /> Malathion ND 20.0 <br /> Merphos ND 20.0 <br /> Mevinphos ND 20.0 <br /> Monocrotophos ND 20.0 <br /> Naled ND 40.0 <br /> Parathion-ethyl ND 20.0 <br /> Parathion-methyl ND 20.0 <br /> Phorate ND 20.0 <br /> Ronnel ND 20.0 <br /> Stirophos ND 40.0 <br /> Sulfotep ND 20.0 <br /> Tokuthion(Prothiofos) ND 20.0 <br /> Trichloronate ND 20.0 <br /> Surrogate: Triphenyl phosphate 83.3 71.1 30.0-150 85.4 <br /> LCS 0010278-BSI <br /> Diazinon 1/12/00 83.3 72.5 ug/kg 50.0-150 87.0 <br /> Disulfoton 83.3 75.2 50.0-150 90.3 <br /> Parathion-methyl 83.3 64.5 50.0-150 77.4 - <br /> Surrogate: Triphenyl phosphate 83.3 78.9 30.0-150 94.7 <br /> Matrix Spike 0010278-MS1 5001026-03 <br /> Diazinon 1/12/00 83.3 ND 79.5 ug/kg 50.0-150 95.4 <br /> Disulfoton it83.3 ND 82.2 50.0-150 98.7 <br /> Parathion-methyl 83.3 ND 74.3 50.0-150 89.2 <br /> Surrogate: Triphenyl phosphate 83.3 75.4 30.0-150 90.5 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Page 30 of 33 <br />