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. *1E1 • <br /> WELL CONCENTRATIONS <br /> C M Weber Enterprises Property <br /> 141 N EI Dorado Street <br /> Stockton,California <br /> WIC#204-7524-1509 <br /> I <br /> Sample Measured Corrected SP TPPH B T E X MTBE Methanol dO dO I Comments <br /> GW Depth GW Elev <br /> Date (ft) (ft) (ft) (uglL) (ug/L) (ug/Q (ug/L) (ug/-, (uglL} mg/L (mg/L) Method <br /> VEW-1 Top casing elevation (ft) NA <br /> 05 Sep-96 2321 NA 000 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NA NA NA <br /> 25-Oct 96 2369 NA 000 <50 <0 50 <0 50 <0 50 098 <2 5 NA 44 YSI Meter <br /> 31-Jan-97 1895 NA 000 <50 <0 50 <0 50 <0 50 <0 50 (a) NA 32 YSI Meter <br /> 02 Apr 97 2071 NA 000 <50 1 5 20 <0 50 17 15 NA 28 YSI Meter <br /> 09-Jul-97 } 2082 NA 000 <50 <0 50 <0 50 <0 50 <0 50 21 NA 17 YSI Meter I <br /> 09 Oct 97 21 25 NA 0 00 <50 <0 50 <0 50 <0 50 <0 50 35 <1 0 30 YSI Meter All Oxygenate Compounds by 8260 ND except for MTBE 50 ppb <br /> 13-Jan-98 2094 NA 000 <50 20 13 086 39 84 <1 0 05 YSI Meter All Oxygenate Compounds by 9260 ND except for MTBE 77 ppb <br /> 22-Apr 98 1783 NA 000 <50 <0 50 <0 50 <0 50 <0 50 180 NA0 7 YSI Meter <br /> 28-Jul-98 1677 NA 000 <50 <0 50 <0 50 <0 50 <0 50 230 NA 07 YSI Meter <br /> VEW-1 (DUP) <br /> 13-Jan-98 NA NA NA <5D 1 5 0 95 0 62 2 7 87 <1 0 NA I NA All Oxygenate Compounds by 8260 ND except for MTBE 79 ppb <br /> VEW-2 Top casing elevation (ft) NA <br /> 05 Sep-96 NA NA NA NA NA NA NA NA NA NA NA ! NA Well dry <br /> 25-Oct-96 NA NA NA NA NA j NA NA NA NA NA NA NA Well dry <br /> 31-Jan-97 1910 NA 000 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NA 18 YSI Meter <br /> 02 Apr 97 2078 NA 000 <50 <0 50 <0 50 <0 50 <0 50 49 NA 1 8 YSI Meter <br /> 09 Jul 97 2080 NA 000 <50 <0 50 <0 50 <0 50 <0 50 75 NA 20 YSI Meter <br /> 09 Oct-97 21 30 NA 000 <50 <0 50 c0 50 <0 50 <0 50 99 <1 0 18 YSI Meter All Oxygenate Compounds by 8260 ND except for MTBE 16ppb <br /> 13-Jan-98 2109 NA 000 <50 <0 50 <0 50 <0 50 <0 50 41 <1 0 04 YSI Meter All Oxygenate Compounds by 8260 ND except for MTBE 25 ppb <br /> 22-Apr-98 1798 NA 000 <50 <0 50 <0 50 <0 50 <0 50 33 NA 04 1 YSI Meter <br /> 28-Jul-98 16 93 NA 000 <50 <0 50 <0 50 1 <0 50 <0 50 57 NA 06 YSI Meter <br /> VEW-3 Top casing elevation (ft) NA <br /> 05 Sep-96 2391 NA 000 <50 <D 50 <0 50 <0 50 <0 50 NA NA NA NA MTBE by 8260 4 0 ppb <br /> 25 Oct-96 2438 NA 000 <50 <0 50 <0 50 <0 50 <0 50 NA" NA 42 YSI Meter MTBE by 8260 2 5 ppb <br /> 31-Jan-97 1967 NA 000 <50 <0 50 <0 50 <0 50 <0 50 (a) NA 34 YSI Meter <br /> 02-Apr 97 21 29 NA 000 <50 <0 50 <0 50 <0 50 <0 50 (a) NA 31 YSI Meter EPA 8010 Detections <br /> 09-Jul-97 21 41 NA 000 <50 <0 50 <0 50 <0 50 <0 50 42 NA 26 YSI Meter EPA 8010 Detections <br /> 09-Oct 97 21 78 NA 000 <50 <0 50 <0 50 j <0 50 -,050 <2 5 <1 0 1 0 YSI Meter All Oxygenate Compounds by 8260 ND except for MTBE 4 0 ppb <br /> All Oxygenate Compounds by 8260 ND except for MTBE 6 4 ppb <br /> 13 Jan 98 21 56 NA 000 <50 1 25 1 5 081 36 89 <1 0 08 YSI Meter See Lab data for HVOCs <br /> 22-Apr 98 1845 NA 000 <50 <0 50 <D 50 <0 50 <0 50 19 NA 04 YSI Meter See Lab data for HVOCs <br /> 28-Jul-98 1740 NA 000 <50 <0 50 <0 50 <0 50 <0 50 27 NA 08 YSI Meter See Lab data for HVOCs <br /> 1 <br /> 2400821 7 <br />