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Sequoia <br />•�' Analytical <br />885 Jarvis Drive <br />Morgan Hill, CA 95037 <br />(408) 776-9600 <br />FAX (408) 782-6308 <br />Blaine Tech Services (Chev) <br />Project <br />Chevron 9-5775 (301 W kettleman Ln , Lodi) <br />Sampled <br />12/3199 <br />1680 Rogers Avenue <br />Project Number <br />991203 R-2 <br />Received <br />1216199 <br />San Jose CA 95112 <br />Project Manager <br />Scott Boor <br />Reported <br />12/22/99 <br />Total"Purgeable-Hydrocarbons (C6 -C12), BTEX and MTBE'by DHS LUFT/Quality Control <br />- Sequoia Analytical - Morgan Hill x y <br />Date Spike Sample QC Reporting Limit Recov RPD RPD <br />Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br />Batch 9120425 <br />Date Prepared <br />12/14/99 <br />Extraction Method EPA 5030B IP/TI <br />Blank <br />9120425-BLKI <br />Purgeable Hydrocarbons <br />12/14/99 <br />ND <br />ug/l <br />500 <br />Benzene <br />" <br />ND <br />0 500 <br />Toluene <br />ND <br />0 500 <br />Ethylbenzene <br />ND <br />0 500 <br />Xylenes (total) <br />ND <br />0 500 <br />Methyl tert-butyl ether <br />ND <br />250 <br />Surrogate a a,a-Trifluorotoluene <br />100 <br />859 <br />700-130 <br />85 9 <br />LCS <br />9120425 -BSI <br />Benzene <br />12/14/99 <br />100 <br />9 54 <br />ug/I <br />700-130 <br />954 <br />Toluene <br />100 <br />9 67 <br />700-130 <br />967 <br />100 <br />9 81 <br />700-130 <br />981 <br />Wylbenzene <br />eDCS (total) <br />300 <br />294 <br />700-130 <br />98 0 <br />Surrogate a,a,a-Trafluorotoluene <br />100 <br />896 <br />700-130 <br />896 <br />Matrix Spike <br />9120425 -MS] <br />M912171-02 <br />Benzene <br />12/14/99 <br />100 <br />ND <br />837 <br />ug/l <br />600-140 <br />837 <br />Toluene <br />100 <br />ND <br />845 <br />600-140 <br />84 5 <br />Ethylbenzene <br />100 <br />ND <br />846 <br />600-140 <br />846 <br />Xylenes (total) <br />300 <br />ND <br />25 3 <br />600-140 <br />843 <br />Surrogate a a,a-Trtfluorotoluene <br />10 0 <br />722 <br />700-130 <br />72 2 <br />Matrix Spike Dup <br />9120425-MSDI M912171-02 <br />Benzene <br />12/14/99 <br />100 <br />ND <br />922 <br />ug/l <br />600-140 <br />922 <br />25 0 966 <br />Toluene <br />100 <br />ND <br />931 <br />600-140 <br />93 1 <br />25 0 968 <br />Ethylbenzene <br />100 <br />ND <br />941 <br />600-140 <br />94 I <br />25 0 106 <br />Xylenes (total) <br />300 <br />ND <br />290 <br />600-140 <br />933 <br />25 0 101 <br />Surrogate a a a-Triuorotoluene <br />100 <br />901 <br />700-130 <br />901 <br />Batch 9120473 <br />Date Prepared <br />12/15/99 <br />Extraction Method EPA 5030B <br />IP/TI <br />Blank <br />9120473-BLKI <br />Purgeable Hydrocarbons <br />12/15/99 <br />ND <br />ug/I <br />500 <br />Benzene <br />ND <br />0 500 <br />Toluene <br />ND <br />0 500 <br />Ethylbenzene <br />ND <br />0 500 <br />Xvlenes (total) <br />ND <br />0 500 <br />Methyl tert-butyl ether <br />ND <br />250 <br />Surrogate aaa-Trtflum otol uene <br />100 <br />988 <br />700-130 <br />988 <br />0 <br />Sequoia Analytical - Morgan Hill "Refer to end of report for text of notes and definitions <br />Page 6 of 1 <br />