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P Table 9 Groundwater Levels and Chemical Analysis Former Mobil Bulk Plant 04-343 Well Date Top of Depth Ground- TPH-G TPH-D Benzene Toluene Ethyl- Total Fecal Lead Phenol Diethyl 2-HEX MTBE ID Casing to water (ppb) (ppb) (ppb) (ppb) benzene Xylenes Coliform (ppb) (ppb) Phthalate (ppb) (ppb) Elevation Water Elevation (ppb) (ppb) (ppb) (ppb) (feet) (feet) (feet) AW-11 10/24195 Dry - - - - - - �-- -- -- -- - - - (don't) 01/26!96 Dry - - - - - - - - - - - - - 04/12196 Dry - -- - - - - -- -- - - - - -- AW-12 041021'93 31.56 10.00 21.56 ND 63 ND NO NO ND --- --- - -- -- - 05/27/93 10.08 21.48 ND ND 9.6 ND ND ND - - - - - - 10/28/93 10.42 21.14 ND ND ND ND ND ND - - - -- 0121/94 10.38 21.18 ND ND NO ND ND ND - - - - - - 05/02194 10.16 21.41 ND NO NO NO ND ND --- -- - - -- - 07/15/94 10.36 21.20 ND NO NO NO NO 0.80 --- -- -- -- -- - f 10/06/94 10.58 20.98 ND ND ND NO ND ND - - - - - -- 01/12/95 10.24 21.32 ND ND ND NO ND ND - - - - - - 0420195 10.35 21.21 87 56 2.1 7.8 5.6 23 - - - - - - 08116M 10.45 21.11 ND ND ND ND ND ND / - - - - - -- 10/24/95 10.54 21.02 NO NO NDI# ND ND ND ✓ - - - - - NO 01/26/96 1020 21.36 ND 87✓ 0.77,,- ND ND ND - - - - - ND 04/12196 10.28 21.28 ND 160 ND ND ND ND -- -- -- - - 0.98,x-' NOTES: ppb= parts per blillon Top of casing elevations were surveyed In reference to a railroad spoe set in an TPH-0= total petroleum hydrocarbons as gasoline Island of the approximate centerilne of East Grantilne Road 19.5 test west from the TPH-D= total petroleum hydrocarbons as diesel centerflne of the raQroad spurtraclds. ND= not detected at or above method detection itmu All wells resurveyed on April 7.1992,by Land IrWrdrvement Servkxm April 7 and 24, -= trot measuredhtot analyzed 1992,data reflect rmrveyed elevations. 2-HEX= 2-Hexen-l-ol(E) '= sample reported as not matching typical gasoline pattern ••= sample reported as not appearing to oontaln gasoline 3"13&GW Data,Ghee Pepe 11 of 11