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1551 Industrial Road <br />Sequoia San Carlos CA 94070-4111 <br />(650)232-9600 <br />FAX (650) 232-9612 <br />%www <br />bs `°`� <br />Gettler-Ryan/Geostrategies(I) Project Gettler-Ryan/Chevron(1) Sampled 7110100 <br />6747 Sierra Court, Suite J Project Number Chevron #9-57751301 West Kettleman Ln Received 7111/00 1055 <br />Dublin, CA 94568 project Manager Scott Polston Reported 7111/00 1445 <br />Total Purgeable Hydrocarbons (C6 -C12) and BTEX by DHS LUFTlQuality Control ' <br />Sequoia Analytical - San Carlos <br />Date Spike Sample QC Reporting Limit Recov RPD RPD <br />Analyte Analyzed Level Resuit Result Units Recov Limits % Limit % Notes* <br />Batch 0070040 Date Prepared 1/11/00 Extraction Method EPA 5030B IPITI <br />Blank 0070640-BLKI <br />Purgeable Hydrocarbons as Gasoline 7/11/00 ND ug/l 50 0 <br />" ND 0.500 <br />Benzene " ND 0.500 <br />Toluene „ 0.500 <br />" <br />Ethylbenzene <br />pate pre red. 7111/00 <br />ND <br />0.500 <br />Bateh. 0072b41 <br />Xylenes (total)9 <br />10 0 <br />68 <br />600-1 <br />96 8 <br />Surrogate a a a -Tri luoratoluene <br />Blank <br />0070041-BLK1 <br />ND <br />,C <br />0070040-BS1 <br />IO 0 <br />946 ug/1 <br />700-130 <br />946 <br />Benzene <br />7/11/00 <br />100 <br />863 <br />700-130 <br />863 <br />Toluene <br />100 <br />866 " <br />700-130 <br />866 <br />Ethylbetizene <br />300 <br />0 <br />700-130 <br />7 <br />Xylenes (total) <br />too <br />1 <br />100 3 <br />d0 0-140 <br />1 103 <br />Surrogate a a,a-Tnfluoratoluene <br />ND <br />O -w <br />AQ Gacnhne <br />Surrogate <br />0070040-BS2 <br />7111100 250 <br />241 <br />999 <br />700-130 964 <br />600-140 999 <br />Page 3 of 4 <br />rxti <br />pate pre red. 7111/00 <br />Extraction Method. EPA 50308 IPM <br />Bateh. 0072b41 <br />Blank <br />0070041-BLK1 <br />ND <br />ug/1 <br />5500 <br />Purgeable hydrocarbons as Gasoline <br />7111/00 <br />„ <br />ND <br />0.500 <br />Benzene <br />ND <br />" <br />O.SOO <br />Tobuaie <br />ND <br />" <br />OSOO <br />Ekhylbenzene <br />ND <br />O -w <br />x (total)" <br />00 <br />10 S <br />" <br />60x140 <br />105 <br />Surrogate. a,a.a-Trri luorotoluene <br />LCS <br />0070041-B <br />10 0 <br />9 l <br />ugd <br />700-130 <br />915 <br />Benzene <br />7/11/00 <br />10 0 <br />868 <br />700.130 <br />868 <br />Tohieiie <br />too <br />8 41 <br />" <br />70 0-130 <br />84 L <br />Ethylbenzene <br />" <br />30 0 <br />25 5 <br />" <br />700- 130 <br />850 <br />Xylenes () <br />too <br />933 <br />600-140 <br />933 <br />Surrogate a a a-Tnfluorotoluene <br />LCS <br />0070041-BS2 <br />250 <br />210 <br />ug/b <br />700-13fl <br />84 0 <br />Purgeable Hydrocarbons as Gasoline <br />7/11/00 <br />989 <br />600-140 <br />98 9 <br />Surrogate a a,a-Tnfluorotoluene <br />" <br />too <br />*Refer to end of report for text of now and definthons <br />Sequoia Analytical - San Carlos <br />Page 3 of 4 <br />rxti <br />