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CHEVRON USA 925 842 8370 11 /16 198 16 : 43 N0 . 045 07107 <br /> FROM GETTLER-RYAN INC. PHONE N0. 916 631 1317 Nov. 13 1998 04 : 18PM P3 <br /> TABLE 2 - GROUNDWATER CHEMICAL ANALY'T'ICAL DATA <br /> Cbeeron Statiou 7194232 <br /> 8660 Lower Sacramento Road <br /> Stockton, Cal9foroia <br /> wbyb Total <br /> Well ED/ Date DTW GWE TFft Bemene Toluene benne Xylenes MTBE <br /> TOC 0) Collected (ft) (msD (p»b) (pob) Copb) (pub) (ppb) (pgb) <br /> MW-1/ <br /> 99. 17 11/4/98 31 .93 67.24 000 13 < 1 .0 43 < 1.0 24/ < 2.0' <br /> MW-2/ <br /> 99.91 1 ] /4/98 X07 63.84 120,000 23,000 18,000 4,300 15,000 < 1,000/ < 2t>(>t <br /> MW-3/ <br /> 99.00 11/4/98 35.22 63.78 18,000 2,900 720 11100 2,500 < 125/ < 40r <br /> Trip Blank 1 ) /4/98 _-_e < 50 < 0. 50 < 0. 50 < 0. 50 < 0. 50 < 2.5 <br /> �pitiBBfimti. <br /> TOC — Top of casing e]evadeo AnglM1rrinat Ijbmatmy. <br /> 04) = feet Sequoia Analytical (ELAP #1210) <br /> DTW = DqA to Water <br /> GWR - Groundwater elevadon almlytica, Medwa <br /> ms1 s Magurement referux;ed relative to mean sea level TPHUIBTEX/MTBE = EPA Method 8015 Mod/8020 <br /> TPHg = Total Pewleum Hydrocarbons as gasoiius <br /> BTEX a benzene, toluene, ethylbeaune, total xylenes <br /> MTBE - Methyl-tert-butyl-ether <br /> ppb = puol yet billion <br /> ---- = not applicable <br /> a MTBE result confirmed by EPA Method 8260. Sample also analyzed for the oxygenates ethanol ( < 500 ppb), <br /> vert-batanol. ( < 100 ppb), di4sopropyl ether ( <2.0 ppb), ethyl, tcrt-butyl ether (<2.0 ppb), tert-amyl methyl edm ( < 2.0 ppb). <br /> Z MTBE result mnffrmed by }IPA Method 8260. Semple also analyzed for the oxygerattes ethanol ( < $09000 ppb). <br /> tert-buuanol ( < 10,000 ppb), di4sopropyl ether ( < 200 ppb), ethyl text-butyl ether (< 200 Ppb), and ten amyl ether ( < 200 ppb). <br /> 9 MTBE result confirmed by EPA Method 8260, Semple Woo analyzed for the oxygeogtes edwacei. ( < 10,000 ppb, <br /> test-beta" ( < 29000 Ppb), di-isopropyl ether ( < 40 ppb), ethyl ten-butyl ether ( < 40 ppb), and Cert-amyl methyl ether ( < 40 pp <br /> 3ae16S.01 <br />