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Sequoia <br />819 Striker Avenue, Suite 8 <br />Sacramento C 95834 <br />(916) 922 1-9600 <br />Blank <br />FAX (916) 921-0100 <br />�„� Analytical <br />www sequoialabs <br />Gettler-Ryan - Dublin Project Chevron 9-5775, Lodi, CA Sampled 8116100 <br />6747 Sierra Court, Ste J _ Project Number 101207 01 Received 8116100 <br />Dublin, CA 94568 Project Mana er S Polston Reported 8117-18100 -- <br />Total Purgeable Hydrocarbons (C6 -C12) and BTEX in Air by DHS LUFT/Quality Control <br />Sequoia Analytical - Sacramento <br />Spike Sample QC Reporting Limit Recov RPD RPD <br />Level Result Result Units Recov Limits % Limit % Notes* <br />11111111111111111[Batch-0080223 <br />Date Pre ared =8116100 <br />Extraction Method EPA 5030B WTI <br />Blank <br />0080223-BLKI <br />Purgeable Hydrocarbons <br />8116100 <br />ND <br />mg/ml Air too <br />Benzene <br />mg/ml Air <br />ND <br />00500 <br />Toluene <br />ND <br />00500 <br />Ethylbenzene <br />1 93 <br />ND <br />00500 <br />" 0 0500 <br />Surrogate a a a-Trifluorotoluene 11200 <br />ND <br />210 600-140 105 <br />LCS <br />0080223 -BSI <br />Benzene <br />8116100 <br />200 <br />1 85 <br />mg/ml Air <br />700-130 <br />925 <br />Toluene <br />200 <br />1 93 <br />700-130 <br />965 <br />Ethylbenzene <br />200 <br />t 94 <br />700-130 <br />970 <br />Xylenes (total) <br />600 <br />532 <br />700-130 <br />887 <br />Surrogate a s a-Trifluorotoluene <br />2 00 <br />204 <br />600-140 <br />102 <br />MEW <br />LCS Dup <br />0080223-BSDI <br />Benzene <br />8116100 <br />200 <br />188 <br />mg/m' Air <br />700-130 <br />940 <br />25 0 <br />161 - <br />Toluene <br />200 <br />184 <br />700-130 <br />920 <br />250 <br />477 <br />Ethylbenzene <br />200 <br />236 <br />700-130 <br />118 <br />250 <br />195 <br />Xylenes (total) <br />600 <br />550 <br />700-130 <br />917 <br />250 <br />3 33 <br />Surrogate a a a-Trifluorotoluene <br />200 <br />2 05 <br />600-140 <br />102 <br />Batch 0080234 <br />Date Prepared <br />8117100 <br />Extraction Method EPA 5030B <br />(PIT) <br />Blank <br />0080234-BLKI <br />Purgeable Hydrocarbons <br />8117100 <br />ND <br />mg/ml Air <br />100 <br />Benzene <br />11ND <br />- 00500 <br />u <br />Toluene <br />ND <br />00500 <br />Ethylbenzene <br />ND <br />00500 <br />Xylenes (total) <br />ND <br />00500 <br />Surrogate a a,a-Trifluorotoluene <br />2 00 <br />208 <br />600-140 <br />104 <br />LCS <br />0080234 -BSI <br />- <br />_ <br />Benzene <br />8117100 <br />200 <br />1 96 <br />mg/ml Air <br />700-130 <br />980 <br />Toluene <br />200 <br />208 <br />700-130 <br />104 <br />Ethylbenzene <br />200 <br />1 99 ` <br />700-130 <br />995 <br />Xylenes (total) <br />600 <br />571 <br />700-130 <br />95 2 <br />Surrogate a a a-Trifluorotoluene <br />2 00 <br />2 10 <br />600-140 <br />105 <br />LCS Dun <br />0080234-BSD1 <br />Benzene <br />8117/00 <br />200 <br />197 <br />mglm' Air <br />700-130 <br />985 <br />250 <br />0 509 . <br />Toluene <br />1.200 <br />2 09 <br />„ <br />700-130 <br />104 <br />250 <br />0 <br />Sequoia Analytical - Sacramento *Refer to end of report for text of notes and definitions <br />- - Page 11 of 16 <br />