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Table A-2 <br /> Ozone Infection-Groundwater Monitoring Data <br /> Con000Phdlips Service Station#6981 <br /> 4707 Pacific Avenue,Stockton California <br /> Monitoring Well MW-16 Moni ring Well VW-7 <br /> Ethyl- Xylenes Ethyl- Xylenes <br /> ORP TPHg Benzene Toluene benzene (total) MtBE ORP TPHg Benzene Toluene benzene (total) MtBE <br /> Date mV (Pgn) (PPA) (pgA) (ugn) MA) (ugA) mV MR) (Pgn) (Pgn) (Pgn) (lignl (pgil) <br /> 6/25/2003 a - 220 24 0 57 3 2 5 6 43 - 14,000 77 110 210 1,100 <20 <br /> 7122!2003 a - 170 27 053 28 82 31 - 3,500 35 37 59 330 <20 <br /> 8/2212003 a - 160 23 063 29 87 26 - 2,200 19 96 38 43 <2 0 <br /> 9/26/2003 - 260 34 067 46 86 32 -- 15,000 53 47 290 1,300 <50 <br /> 10/31/2003 -63 190 22 24 40 78 17 -91 12,000 13 36 170 610 <50 <br /> 11/25/2003 b 130 17 <0 50 30 52 14 -85 6200 84 19 110 180 <10 <br /> 12/17/2003 b -4AC07- 46 - -41 I Z b G O <br /> 3 g', -s I' 7 31 I6 <br /> Definitions Notes <br /> TPHg Total petroleum hydrocarbons as gasoline a Sampled by Gettler-Ryan,Inc <br /> MtBE Methyl tert-butyl ether b Reading is below the lower range of instrument,-99 <br /> ppb Parts per billion - Data not available <br /> ORP Oxidation Reduction Potential <br />