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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> 1 4 (916)921-9600 <br /> 5)5„- Analytical FAX(9 16)921-0 100 <br /> i <br /> Gettler-Ryan-Rancho Cordova Project Tosco#6981, Stockton,CA Sampled 8/23199 <br /> 3164 Gold Camp Dr, Ste 240 Project Number 1401270t Received 8124199 <br /> Rancho Cordova,CA 95670 Project Manager Mike Mitchener Reported 8127199 <br /> Total Purgeable Hydrocarbons(C6-C12), BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov 7Rt7PD=Anal e Analyzed Level Result Result Units Recov Limits % <br /> Batch 9080214 Date Prepared 8125199 Extraction Method EPA 50308 McOH <br /> Blank 9080214-BLK1 <br /> Purgeable Hydrocarbons 8125199 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xy lenes(total) ND 000500 <br /> Methyl tert-butyl ether __ ND _ 00500 <br /> Surrogate a a a-Trifluorotoluene 0200 0 196 60 0-140 980 <br /> LCS 9080214-BSI <br /> Benzene 8125199 0200 0 221 mg/kg 700-130 110 <br /> Toluene 0200 0 220 700-130 110 <br /> Ethylbenzene 0200 0 223 700-130 112 <br /> Oes(total) 0 600 0 601 700-130 100 <br /> l tert-butyl ether_ _ 0200 _0 189 --_ 700-130 94 5 <br /> Surrogate a a a-Trifluorotoluene 0200 0112 60 0-140 106 <br /> Matrix Spike 9080214-MSI S908296-04 <br /> Benzene 8/25199 0200 ND 0208 mg/l,g 60 0440 104 <br /> Toluene 0200 ND 0207 600-140 103 <br /> Ethylbenzene 0200 ND 0208 600-140 104 <br /> Xylenes(total) 0 600 ND 0 574 600-140 957 <br /> Me_thyl_tert-butyl ether _ _ 0200 ND 0 19560_0-140 975 <br /> Surrogate a a,a-Trifluorotoluene 0200 0 241 600-140 _ 120 <br /> Matrix Spike Dup 9080214-MSD1 5908296-04 <br /> Benzene 8125199 0200 ND 0205 mg/kg 600-140 102 250 194 <br /> Toluene 0200 ND 0 196 600-140 980 25 0 498 <br /> Ethylbenzene 0200 ND 0208 600-140 104 25 0 0 <br /> Xylenes(total) 0 600 ND 0 574 600-140 957 250 0 <br /> Methyl tert-butyl ether _ _ 0200 ND 0 188 60_0-140_ 94 0 --250- 366 <br /> Surrogate a a a-Triuorotoluene 0200 0 236 600-140 118 <br /> • <br /> Sequoia Analytical - Sacramento *Refer to end of report jor text ojnotes and definitrons <br /> Page 4 of 5 <br />