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i <br /> i <br /> Table 1A <br /> Groundwater Analytical Data <br /> 7-Eleven Store#19976 <br /> 1399 North Main Street <br /> Manteca,California <br /> Well No 1 Ethyl- MTBE Dissolved <br /> Elevation Date Benzene Toluene benzene Xylenes TPH-G 8020 8260 TBA DIPE ETBE TAME 1,2-DCA Ethanol Methanol Oxygen DTW SPT WTE <br /> (TOC) (11g/L) (lig/L) (lag/L) ( g/L) (Ng/L) (!3g/L) (lig/L) (lig/L1 z (lig/L) (4i IL) (jig/t.) (pg/L) (mg11.) (mg/L) {mglL) (ft) (ft) (ft) <br /> MW-6 <br /> 33 65 01/24100 1 1 327 183 173 1,010 <5 <5 <20 a <5 <5 <5 — -- -- 0 9 19 40 0 00 14 25 <br /> 04/06/00 <0 5 084 2 27 390 -- <1 <50 <2 1 <2 <2 -- -- 1 2 1825 000 1540 <br /> 07/21100 <0 5 27 51 54 1,200 -- <1 <50 <2 <2 <2 <1 <5 <5 07 1973 000 1392 <br /> 10/12/00 061 <0 5 29 65 200 — <1 <25 <2 <2 <2 <1 1 <5 <5 05 1985 000 1380 <br /> 01/16/01 <0 5 06 3 0"* 4 210 — <1 <50 <2 <2 <2 - — — 10 1977 000 1388 <br /> 04/02/01 <0 5 27 6 83 560 — <1 <50 <2 <2 <2 -- - 07 2056 000 1309 <br /> 06126/01 <0 5 <0 5 12 26 150 -- <1 <50 <2 <2 <2 -- - — 07 2250 000 11 15 <br /> 11/28/01 1 <0 5 077 22 170 <5 <20 <5 <5 <5 - - 1 4 2280 000 1085 <br /> 01/30102 <0 5 <0 5 <0 5 <0 5 88 -- <5 <20 <5 <5 <5 -- -- — 1 2 2056 000 1309 <br /> 04/04/02 <0 5 <0 5 <0 5 <0 5 180b <5 063 7 6 <0 5 <0 5 <0 5 - -- -- 1 1 21 42 000 12 23 <br /> 07/08/02 <0 5 085 <0 5 <0 5 100 <5 0 73 <5 <0 5 <0 5 <0 5 — -- 12 2255 000 11 10 <br /> MW-7 <br /> 3245 10/12/00 -- <br /> 01/16/01 096 <0 5 1 5*"* 23 <100 - 66 <50 <2 <2 <2 - — 06 1864 000 1381 <br /> 04/02/01 <0 5 <0 5 1 2 27 150 — 42 <50 <2 <2 <2 _ __ -. 1 0 1944 000 1 1301 <br /> 06/26/01 <0 5 <0 5 1 5 27 170 — 56 <50 <2 <2 <2 - - 09 21 70 000 1075 <br /> 11/28/01 <0 5 <0 5 <0 5 <0 5 57 — <5 <20 <5 <5 <5 - -- 1 0 21 81 000 1064 <br /> 011301021 <0 5 <0 5 <0 5 LO 52 91 — 13 <20 <5 <5 <5 -- -- - 1 0 19 56 000 t20 <br /> 04/04102 <0 5 <0 5 <0 E. <br /> Ej <br /> <50 82 86 <5 <0 5 <0 5 <0 5 - - 1 3 2037 000 07/08/02 <0 5 085 <0 5 69 <5 38 <5 <0 5 <0 5 <0 5 — - 1 1 21 50 4 00 <br /> Explanation <br /> TPH G=Total petroleum hydrocarbons-as-gasoline pg/L=micrograms per Liter <br /> MTBE a Methyl tert butyl ether rng1L=milligrams per Liter <br /> TBA=tert Butanol —=Not analyzed/Not available <br /> RIPE=Diisoprophyl ether '=Deep zone well <br /> ETBE=Ethyl tett-butyl ether "'=Laboratory results for the 11104199 samples collected from the nested wells MW 1 and MW-1A were switched The table shows corrected data <br /> TAME a tert Amylmathyl ether '*`=Method Blank Contamination The method blank contains the targeted analyte at a reportable level <br /> 1 2 DCA=1 2 dicbioroethane <br /> 7-11/19976 tab xls Page 5 of 5 08-15-02 <br />