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Sequoia 680 Chesapeake Drive Redwood City,CA 940 (415) 364-9600 FAX(415) 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 9459b (510) 988-9600 FAX(510)988.9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> Kleinfelder-Stockton Project: N/A Sampled: 7/16/98 <br /> 2825 East Myrtle Street Project Number: 20-4202-O1.PO2 Received: 7/20/98 <br /> Stockton,CA 95205 Project Manager: Tony Martin Reported: 8/11/98 <br /> Organochlorine Pesticides and PCBs by EPA Method 8080A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analvzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> Batch: 8070352 Date Prepared: 7/28'98 Extraction Method: EPA 3550A <br /> Blank 8070352-BLKI <br /> Aldrin 8/5/98 ND ug.Ig 1.00 <br /> alpha-BHC ND 1.00 <br /> beta-BHC ND 1.00 <br /> delta-BHC ND 1.00 <br /> gamma-BHC(Lindane) ND 1.00 <br /> Chlordane(tech) ND 20.0 <br /> 4,4'-DDD ND 6.00 <br /> 4,4'-DDE ND 2.00 <br /> 4,4'-DDT ND 6.00 <br /> Dieldrin ND 2.00 <br /> Endosulfan I ND 2.00 <br /> Endosulfan II ND 2.00 <br /> Endosulfan sulfate ND 6.00 <br /> Endrin ND 2.00 <br /> Endrin aldehyde ND 6.00 <br /> Heptachlor ND 1.00 <br /> Heptachlor epoxide ND 1.00 <br /> Methoxychlor ND 20.0 <br /> Toxaphene ND 80.0 <br /> Aroclor 1016 ND 20.0 <br /> Aroclor 1221 ND 80.0 <br /> Aroclor 1232 ND 20.0 <br /> Aroclor 1242 ND 20.0 <br /> Aroclor 1248 ND 20.0 <br /> Aroclor 1254 ND 20.0 <br /> Aroclor 1260 ND 20.0 <br /> Surrogate: TCMX 12.5 7.80 40.0-140 62.4 <br /> Surrogate: Decachlorobiphenyl 12.5 13.3 40.0-140 106 <br /> l CS 8070352-BSI <br /> Aldrin 8/5/98 2.50 1.77 ug/kg 40.0-140 70.8 <br /> Dieldrin 5.00 4.20 40.0-140 84.0 <br /> Heptachlor 2.50 2.05 40.0-140 82.0 <br /> Surrogate: TCMX 12.5 8.73 40.0-140 69.8 <br /> Surrogate: Decachlorobiphenyl 12.5 13.0 40.0-140 104 <br /> Matrix Spike 8070352-M11S1 S807216-01 <br /> Aldrin 8/5198 2.50 ND 1.74 ug/kg 40.0-140 69.6 <br /> Dieldrin 5.00 ND 4.15 40.0-140 83.0 <br /> Heptachlor 2.50 ND 2.12 40.0-140 84.8 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Linda C.Schneider,Laboratory Director Paoe 21 of 25 <br /> ([ <br /> A I <br />