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Sequoia 819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />Analytical FAX (916) 921-9600 <br />(916) 921-0100 <br />l einfelder - Stockton <br />Project: N/A <br />Sampled: <br />6/14/99 to 6/20/99 <br />East Myrtle Street <br />Project Number: 20-3978-03.W36 <br />Received: <br />6/22/99 <br />J825 <br />Stockton, CA 95205 <br />Project Manager: Tony Martin <br />Reported: <br />7/12, 23/99 <br />Volatile'Organic Coirtpound ty EPA,Method; 8 6OA1Quality C,ontrol,' <br />tth9060419-MSD1 <br />nzene <br />6/30/99 <br />Sequoia Analytical - Sacramento <br />ND <br />2410 <br />ug/kg 60.0-140 <br />96.4 <br />25.0 <br />5.54 <br />lorobenzene <br />Date Spike Sample QC <br />Reporting Limit Recov. <br />RPD RPD <br />knalyte <br />Analyzed Level Result Result Units <br />Recov. Limits % <br />Limit %Notes* <br />Slatrix pike (continued) <br />9060419-MSl S906400-04 <br />2500 <br />arrogate.• 4 -BFB <br />6/30/99 <br />2500 <br />2070 <br />ug/kg 70.0-130 <br />82.8 <br />5906400-04 <br />tth9060419-MSD1 <br />nzene <br />6/30/99 <br />2500 <br />ND <br />2410 <br />ug/kg 60.0-140 <br />96.4 <br />25.0 <br />5.54 <br />lorobenzene <br />2500 <br />ND <br />2390 <br />60.0-140 <br />95.6 <br />25.0 <br />6.48 <br />1,1-Dichloroethene <br />2500 <br />ND <br />2110 <br />60.0-140 <br />84.4 <br />25.0 <br />5.85 <br />Iffoluene <br />2500 <br />ND <br />2420 <br />60.0-140 <br />96.8 <br />25.0 <br />5.52 <br />richloroethene <br />2500 <br />ND <br />2260 <br />60.0-140 <br />90.4 <br />25.0 <br />6.86 <br />7urrogate: Dibromofluoromethane <br />2500 <br />2510 <br />70.0-130 <br />100 <br />Surrogate: 1,2 -DCA -d4 <br />2500 <br />2640 <br />70.0-130 <br />106 <br />urrogate: Toluene -d8 <br />2500 <br />2560 <br />70.0-130 <br />102 <br />arrogate: 4 -BFB <br />2500 <br />2220 <br />70.0-130 <br />88.8 <br />moBatch: 9060421 <br />Date Prepared: <br />6/30/99 <br />Extraction Method; EPA <br />5030B <br />(P/Tl <br />ke,,ene <br />9060421-BLKI <br />6/30/99 <br />ND <br />ug/l 2.00 <br />Bromobenzene <br />ND <br />2.00 <br />ND <br />2.00 <br />tromochloromethane <br />romodichloromethane <br />ND <br />2.00 <br />Bromoform <br />ND <br />2.00 <br />romomethane <br />ND <br />5.00 <br />(Butylbenzene <br />ND <br />2.00 <br />c-Butylbenzene <br />ND <br />2.00 <br />tert-Butylbenzene <br />ND <br />2.00 <br />arbon tetrachloride <br />ND <br />2.00 <br />hlorobenzene <br />ND <br />" 2.00 <br />Chloroethane <br />ND <br />5.00 <br />Chloroform <br />ND <br />2.00 <br />thloromethane <br />ND <br />5.00 <br />-Chlorotoluene <br />ND <br />2.00 <br />4-Chlorotoluene <br />ND <br />2.00 <br />ibromochloromethane <br />ND <br />2.00 <br />2-Dibromoethane <br />(ibromomethane <br />ND <br />2.00 <br />ND <br />2.00 <br />1,2-Dibromo-3-chloropropane <br />ND <br />5.00 <br />1 2 -Dichlorobenzene <br />ND <br />2.00 <br />,3 -Dichlorobenzene <br />ND <br />2.00 <br />1,4 -Dichlorobenzene <br />ND <br />2.00 <br />ichlorodifluoromethane <br />ND <br />5.00 <br />ll-,2-Dichloroethane1-Dichloroethane <br />1' <br />ND <br />;' 2.00 <br />ND <br />2.00 <br />equoia Analytical - Sacramento <br />*Refer to end of report for text <br />of notes and definitions. <br />Page 26 of 33 <br />