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QSequoia <br />Analytical <br />40W <br />1551 Industnal Road <br />San Carlos CA 94070-4111 <br />(650) 232-9600 <br />FAX (650) 232-9612 <br />www sequotalabs com <br />Gettler-Ryan/Geostrategies(1) <br />Project <br />Gettler-Ryan/Chevron(2) <br />Sampled <br />813100 <br />6747 Sierra Court, Suite J <br />Project Number <br />Chevron 9-5775301 Kettleman mane <br />Received <br />814100 <br />Dublin, CA 94568 <br />Project Manager <br />Scott Polston <br />EM Dried <br />817100 <br />Total Purgeable Hydrocarbons (C6 -C12) and BTEX by DHS LUFT/Quality Control <br />Sequoia Analytical - San Carlos <br />Date Spike Sample QC Reporting Limit Recov RPD RPD <br />Analvzed Level Result Result Units Recov Limits % Limit % N <br />Batch: 0090021 <br />Date Prepared <br />814100 <br />Extraction Method EPA 5030B IPITI <br />Blank <br />0080021-BLK2 <br />Purgeable Hydrocarbons as Gasoline <br />8/4/00 <br />250 <br />217 <br />ug/l <br />Purgeable Hydrocarbons as Gasoline <br />814100 <br />Surrogate a,a,a-Trifluorotoluene <br />ND <br />ug/1 <br />500 <br />Benzene <br />103 <br />Matrix Spike <br />ND <br />L007174-05 <br />0 500 <br />Toluene <br />Purgeable Hydrocarbons as Gasoline <br />ND <br />250 ND <br />0 500 <br />ug/l <br />Ethylbenzene <br />104 <br />Surrogate a,a,a-Trrfluorotoluene <br />CVD <br />100 <br />0 500 <br />Xylenes (total) <br />113 <br />Matrix Spike Dug <br />ND <br />0 500 <br />Surrogate a,a,a-Trifluorotoluene <br />Purgeable Hydrocarbons as Gasoline <br />100 <br />989 <br />259 <br />600-140 <br />98 9 <br />LCS <br />0080021 -BSI <br />" <br />100 <br />105 <br />ff600-140 <br />Benzene <br />8/4/00 <br />100 <br />957 <br />ug/l <br />700-130 <br />95 7 <br />Toluene <br />100 <br />886 <br />it700-130 <br />Purgeable Hydrocarbons as Gasoline <br />886 <br />Ethylbenzene <br />ND <br />to 0 <br />9 07 <br />700-130 <br />907 <br />Xvlenes (total) <br />ND <br />300 <br />278 <br />700-130 <br />927 <br />a,a,a-Tnfluorotoluene 11100 101 11600-140 Jul <br />LCS <br />0080021-BS2 <br />Purgeable Hydrocarbons as Gasoline <br />8/4/00 <br />250 <br />217 <br />ug/l <br />70 0-130 <br />868 <br />Surrogate a,a,a-Trifluorotoluene <br />100 <br />103 <br />600-140 <br />103 <br />Matrix Spike <br />0080021 -MSI <br />L007174-05 <br />Purgeable Hydrocarbons as Gasoline <br />8/4/00 <br />250 ND <br />259 <br />ug/l <br />600-140 <br />104 <br />Surrogate a,a,a-Trrfluorotoluene <br />" <br />100 <br />113 <br />600-140 <br />113 <br />Matrix Spike Dug <br />0080021-MSDI L007174-05 <br />Purgeable Hydrocarbons as Gasoline <br />814100 <br />250 ND <br />259 <br />ug/l <br />600-140 <br />104 250 0 <br />Surrogate a a a-Trifluorotoluene <br />" <br />100 <br />105 <br />ff600-140 <br />105 <br />Batch 0080022 <br />Date Prepared <br />8/4/00 <br />Extraction Method EPA 5030B IPITI <br />Blank <br />0080022-BLK2 <br />Purgeable Hydrocarbons as Gasoline <br />814100 <br />ND <br />ugll <br />500 <br />Benzene <br />ND <br />0 500 <br />Toluene <br />ND <br />0 500 <br />Ethylbenzene <br />It <br />ND <br />0 500 <br />Xylenes (total) <br />It <br />ND <br />It <br />0 500 <br />Surrogate a,a,a-Trtfluorotoluene <br />1110 <br />0 <br />101 <br />600-140 <br />102 <br />LCS <br />0080022-BS1 <br />Benzene <br />8/4/00 <br />10 0 <br />11 0 <br />ug/1 <br />700-130 <br />110 <br />Toluene <br />100 <br />10 6 <br />1.700-130 <br />106 <br />Ethylbcnzene <br />10 0 <br />t04 <br />700-130 <br />104 <br />�lenes (total) <br />300 <br />313 <br />70 0430 <br />104 <br />Sequoia Analytical - San Carlos <br />*Refer to end of report for text of notes and definitions <br />Page 6 of 9 <br />