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Sequoia 819 r Avenue Suite 8 <br />Sacramento CA 95834 <br />(916) 921-9600 <br />Analytical FAX (916) 921-otoo <br />Gettler-Ryan - Rancho Cordova <br />Protect <br />Chevron 9-5775, Lodi, CA <br />Sampled <br />2/28/00 <br />3164 Gold Camp Dr, Ste 240 <br />ProjectNumber <br />346408 06 <br />Received <br />2/29/00 <br />Rancho Cordova, CA 95670 <br />Project Manager <br />David Herzog <br />Reported <br />312/00 <br />Total Purgeable Hydrocarbons (C6 -C12) and BTEX by DHS LUFTIQuahty Control <br />Sequoia Analytical - Sacramento <br />Date Spike Sample QC Reporting Limit Recov RPD RPD <br />A 1-r, Analvzed Level Result Result Units Recov Limits % Limit % Notes* <br />Batch 0030013 <br />Blank <br />Purgeable Hydrocarbons <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total) <br />Surrogate a,a a-Trifluorotoluene <br />Date Prepared 311100 <br />0030013-BLK1 <br />3/1/00 <br />11 <br />Fr 0200 <br />Extraction Method EPA 5030B (MeOH) <br />ND mg/kg <br />ND " <br />ND " <br />ND " <br />ND " <br />0203 <br />100 <br />000500 <br />000500 <br />000500 <br />000500 <br />600-140 101 <br />LCS <br />0030013 -BSI <br />5002337-04 <br />Benzene <br />3/1/00 0200 <br />0209 mg/kg <br />700-130 <br />105 <br />Toluene <br />0200 <br />0 214 <br />700-130 <br />107 <br />Ethylbenzene <br />0200 <br />0 210 <br />700-130 <br />105 <br />Xylenes (total) <br />0 600 <br />0 590 <br />700-130 <br />983 <br />_ <br />Surrogate a a a-Trrfluorotoluene <br />0200 <br />_ <br />0 214 <br />600-140 <br />107 . <br />Matrix Spike <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total) _ <br />Surrogate a a a-Trifluorotoluene <br />Matrix Spike Duo <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total)_ <br />Surrogate a a,a-TriJluorotoluene <br />0030013-MS1 <br />5002337-04 <br />3/1100 <br />0200 <br />ND <br />0 187 mg/kg <br />600-140 <br />935 <br />" <br />0200 <br />ND <br />0 195 <br />600-140 <br />975 <br />" <br />0200 <br />ND <br />0 195 <br />600-140 <br />975 <br />" <br />0 600 <br />ND <br />0 544 <br />600-140 <br />907 <br />_ <br />0200 <br />0 214 <br />600-140 <br />107 <br />0030013-MSD1 <br />S002337-04 <br />3/1100 <br />0200 <br />ND <br />0 189 mg/kg <br />600-140 <br />945 <br />250 <br />106 <br />" <br />0200 <br />ND <br />0 182 <br />600-140 <br />910 <br />250 <br />690 <br />" <br />0200 <br />ND <br />0 196 <br />600-140 <br />980 <br />250 <br />0 512 <br />0 600 <br />ND <br />0 543 <br />600-140 <br />905 <br />250 <br />0 221 <br />0200 <br />0 216 <br />600-140 <br />108 <br />• <br />Sequoia Analytical - Sacramento _ *Refer to end of report for text of notes and defin� It+ ns <br />Page 4 of 6 <br />