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• MAY-08-2000 16 51 CAMBRIA 510 420 9170 P 21/24 <br /> ` Sequoia ��tal(707 7994954 <br /> (707) 792-1845 <br /> Analytical FAX(707) 792-034Z <br /> FAX <br /> sequolalabs abs eo eom <br /> 0 <br /> Cambria Environmental-Oakland Projeot Equivd Sampled 4/28100 <br /> 1144 65th St,Suite C Project Number 341 E Main SL,Ripon Received 511/00 <br /> Oakland CA 94608 Protect Manager Owen Ratell o Rcmicd 513100 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M18020AUQuahty Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte <br /> Analyzed Bevel Result Result Units Recov Lututs % Limit °/a Notes"` <br /> Batch 0050065 Datr Prepared 512/00 Extraction_Method EPA 5030 waters <br /> Blank 0050065-BLK1 <br /> Gasohnt 512/00 ND ug/1 Sao <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Elhylbctucnc ND 0 500 <br /> Xylenes(total) _ _ " _ND " __ 0.500 <br /> Surroga_le a,a,a-Trifluorotoluane 300 317 " 650-135 106 <br /> Surrogate 4-Bromofhroroberrzene 300 286 650-13.5 9.53 <br /> LCS 0050065-BSI <br /> G_asolinc __ 512/00 1000 969 ug/1 650-135 969 <br /> Surrogate 4-Brompfluorobenrene od 300 293 65 0-135 <br /> Matnx Spike 005Q065-MS1 P005018-04 <br /> oline _ 5/2100-_-- 1000 ND 986 ug/l 650-135 986 <br /> rrogate 4-Bromofluoroben_:ene 300 304 65 0-135 101 <br /> Matrix Spike Du p 0050065-MSD] P005018-04 <br /> Gasoline _— 512/00 1000 ND 969 uc650-135 969 20 0 174 _ <br /> Surrogate 4-Bromofluorobrazene 300 295 45-0.135 983 w--� <br /> uoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> Page 5 of 7 <br />