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S <br /> Table 1 - <br /> Groundwater Elevation and Analytical Data <br /> Former ARCO Service Station#84493 <br /> 205 North Center street <br /> Stockton,California <br />[ Well DWM GrourmMater Change In TPH as Ethyl- <br /> WON pate Eleyoon toVVdK ElWAlbn Groundwater Gasoline Benzene Toluene benzene Xylenes MBE DO <br /> Number E!M&g (f9K MSLTOC MSL fed,MSL b b L <br /> E MW-1 2/16/99 11.94 13..85 -1.41 -- 231 1.35 ND 2.37 NO ND' -- <br /> 3110M 13.01 -1.07 0.34 -- - -- - <br /> <50 3,52 <0.5 <0.5 3.02 <2. <br /> 06117/99 11.89 0.05 1.4 2 0 -- <br /> 09124199 -.. Well lnaccessable---- ------ ------- - <br /> f 12!16199 NP 14.39 -2.45 - <50 2.35 <0.5 <0.5 3.02 <2.50 2.9 <br /> 03128100 P 1212 -0.18 2.27 132 0.864 <0.5 <0.5 <0.5 <2.60 1.82 <br /> MW-2 216199 12.43 14.58 -2.13 -- ND ND ND ND ND ND' -- <br /> 3110V99 13.70 -1.27 0.86 - - -- -- - <br />& 06117!99 1252 -0.09 1.18 <br /> <50 <0,5 <0.5 <0.5 <0.5 <2.0' <br /> 09/24199 NP 12.24 0.19 0.28 <50 <0_5 <0.5 <0.5 <0.5 <5.0 4.2 <br /> 12/16199 NP 15.29 -286 -3.05 <br /> <50 <0.5 <0.5 <0.5 <0.5 <2.50 4.3 <br />- <br /> r 03128/00 P 12.86 -0.62 2.34 52.2 <0.5 <0.6 <0.5 1.22 <2.50 2.88 <br /> i. <br /> MW-3 2116199 12.51 1464 -2.13 - ND ND ND ND ND 7,06D - <br /> 3110199 13.99 -1.48 0,65 - -- - - -' - <br /> 06/17/99 1297 -0.46 1.02 <50 <0.5 <0.5 <0.5 2,26 144° <br /> 09124199 --------- - <br /> Well Inaccessable--- <br /> 1216199 NP 15.53 -3.02 - <50 <0.5 <0.5 <0.5 <0.5 <2.50 4.1 <br /> 03188100 P 13.21 -0.7 2.32 <50 <0.5 <0.5 <0.5 <0.5 246 2.24 <br /> E. <br /> MW-4 2/16199 12.19 14.41 -2.22 -- 15,000 503 ND 707 1,550 9, - <br /> 3/10199 13.61 -1.42 0.8 -- - - -- <br /> 6/17199 12.43 -0.24 1.18 10,800 230 17.7 597 936 766° - <br /> 09/24/99 NP 12.72 • -0.53 -0.29 4,880 173 <10.0 262 <10 670 4-9 <br /> 12!16/99 NP 15.17 -2.98 -2.45 7,830 260 <10.0 570 113 1,310 1.9 <br /> 03/28/00 P 1223 .0.64 2.34 5,330 298 <20.0 318 443 4,960 1.00 <br /> TOC =Top of casing <br /> MSL =Mean Sea Level <br /> TPH =Total pefroietnm hydrocarbons <br /> ppb =Parts per bison <br /> P =Wei purged prior to sample 0060clion <br /> NP =Well not purged prior to aarrple odec tion <br /> < =below dd dlor limit <br /> a =SaM1jonv am d fW T$A,MT, E,TAW,and 1,2-DCA by EPA Mathod by 8260. All oxygenates were reported non-detect. <br /> b =Samples mere arnalyted fat TBA,DrE,W TliK.and 1,243CA by EPA Melhod by 8260. All oxygenates except KBE were reported non-detect. <br /> NO ■ as rcatoddEt <br /> 077.41819.0021GW Tables <br />