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I • SIERRA Table 2. Analytic Results for Ground Nater- Chevron Service Station 119-6171. 6633 Pacific Avenue. Stockton.California(continued) �. ANALYfiC I.;13011ATORIE5: y EXPLANATION: TITH(G)-Total Purgeable Petroleum 1lydrocarbons as Gasoline ESequoilyti lLabrat lZedwwd City, California TOG=Toand Grcnsc STL A c oInof nmcnt California 13=Bcvcme � • SAL =Superior Analyilc.d L-thontory of M..rtlnts,California T=Toluene NOTES: E=Ethylbenzene X=Xykries -rhts Other VOCs=Other volatile organic compounds t 1,2- ich aas dry EDI3=Ethylcncdibromtde # 1,2-Dtchlomcth;tnc detected at Ito ppb, DI[S UAL for this compound 5.0 PPI)- EDB pb. ED= Et lone dm bacteria Tetmchloroethcne detwcd at 4 ppb,DI IS RAL for this compound=5.0 ppb. P =Not a coitfod/not applicable #$ 1,2-Dichlaroethanc detected at 26 ppb and Tetrachloroethylene dete'rtCd at to pp)for the March ` DI IS=Department o Health Services 14, 1991 sampling event. Other VOCs not detected at detection]tints of 3 to 20 pp'.). MCLS=Maximum Contaminant Se Levels $$$ 1,2-Dichloroethartc detected at 16 ppb and Tetrachloroethane deWeted at i 1 ppb. Other VOCs =Recommended Action levels net defected at detection III-nits.tof 3 to 20 ppb. IZALs $$$$ 1.2-Diehlorocthanc detected at 15 ppb. Other VOCs not detected at dctectian limits from 3 to 20 NE=Not established Typical gasoline pattern not prescnt, Peak at 7.2 minutes subtracted from 1;:c5oiinc rutgc brfon: ppb- ,WAL1'RC ME1fiODS: Typicalculating gasoline concentration. 015=EPA Method 5030/8015 fOCTPPH(G) •' Non-gasoline components which wcre not identified by the laboratory present in sample at 150 64 602=EPP_Method 6D2 far B'CEX ppb,11/29/90. Nan-gasoline rnmponcnls which•.i•crc not ldest[ilied b}-the laboratory present in Y' 8020=EPA Methad 6020 for BTEX .•, sample at 300 ppb,3/14/91. 504=EPA Method 504 for EDB Nat detected at detection IimiLs of<3 to<20 ppb,1.i-Dichlarocthanc detected at:ppb- DE 151L1L # 503E=Standard Methods Method 5133E for TOG for this compound is 0.5 pph. DHS MCLS and RAL s for VOCs vary. ' 624=EPA Method 624 for VOCs I Gasoline range concentration reported. Peaks not associated with ga5oiine are abscrved carp•in 8240=EPA Method 8240 for VOCs the chromatogram. 910=EPA Method 910 for Fecal coliform bacteria Gasoline range concentration reported. 7'hc chromatogram shaves only a:i^hie peak- Both gasoline and a single solvent peak are observed in the chromatogrcm 14604T.Gw �_ -