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i • i <br /> Table B 2 <br /> Ozone Injection-Groundwater Monitoring Data <br /> 76 Station 011192 <br /> 1403 Country Club Blvd Stockton California <br /> Monitoring Well MW-3 Monitoring Well MW-4 <br /> Ethyl Xylenes Ethyl- Xylenes <br /> ORP DO TPHg Benzene Toluene benzene (toted MtBE TBA ORP DO TPHg Benzene Toluene benzene (total) MtBE TBA <br /> Date m u n (Ngm (4�a+9 (PIM (lig, (Ngm (PSIM (PA m u A (PA (Ngsl (Neil (Pgm (PA (pg- (pgm <br /> 1111512002 a — <12 000 <120 <120 <120 <120 <500 180 000 » 150 <0 50 067 <0 50 0 64 150 <500 <br /> 1!3!2003 a — — <10 000 <100 <100 <100 <100 <400 150 000 — — <50 <0 50 <0 50 <0 50 <1 0 130 <500 <br /> 1131/2003 a — — <25 000 <250 <250 <250 <500 <1 000 160 000 — <50 <0 50 <0 50 <0 50 <1 0 64 <100 <br /> 2/19/2003 a — — 3 300 <5 0 <5 0 <5 0 <10 280 — — — <50 <0 50 <0 50 <0 50 <1 0 30 — <br /> 312112D03 a — — 250 4050 <0 50 <0 50 <0 50 14 — <50 <0 50 <0 50 <0 50 <0 50 37 <br /> 4/22/2003 a — — 220 <0 50 <0 50 <0 50 <0 50 15 — — — <50 <0 50 <0 50 <0 50 <0 50 2 1 — <br /> 511412o03 a — — <5 000 <50 <50 <50 <50 <200 120 000 — — <50 <0 50 <0 50 <0 50 <0 50 19 <500 <br /> 6/20/2003 a — 180 <0 50 <0 50 <0 50 <0 50 13 160 000 — — <50 <0 50 <0 50 <0 50 <0 50 43 18 <br /> 7/22/2003 a — — <5 000 <50 <50 <50 <50 <200 110 000 — — 65 <0 50 <0 50 <0 50 <0 50 39 140 <br /> 9/26/2003 — — 1 400 <1 0 <1 0 <1 0 <1 0 320 — — — <50 <0 50 <0 50 <0 50 <0 50 <5 0 — <br /> 10/31/2003 60 — <25000 <260 <250 <250 <500 <250 — 206 — <50 <0 50 2 5 0 51 2 6 <0 50 — <br /> 11/2512003 7 — <5000 <50 <50 <50 <100 <200 — 165 — <50 <0 50 <0 50 <0 50 <1 0 <2 0 — <br /> 12/17/2003 — — <10000 <100 <100 <100 e200 <400 110 000 — — <50 <0 50 <0 50 <0 50 <1 0 <2 0 <100 <br /> 1/20/2004 -36 — <5000 <50 <50 <50 <100 <20D 99 000 166 — <50 <0 50 <D 50 <0 50 <1 0 81 <100 <br /> 2/12/2004 — — <10000 <100 <100 <100 <200 <400 110 000 — — <50 <0 50 <0 50 <0 50 <1 0 3 9 <100 <br /> 3/31/2004 -1 — <5000 <50 <50 <50 <100 <50 58 000 115 — <50 <0 50 <0 50 <0 50 <1 0 34 <5 0 <br /> 4/23/2004 13 7 55 <5000 <50 <50 <50 <100 <50 69 000 64 649 <50 <0 50 <0 50 <0 50 <1 0 16 <5 0 <br /> 5/19/2004 3 2 14 <100000 <109 <100 <100 <200 <100 67 000 67 4 96 <50 <0 50 <0 50 <0 50 <1 0 17 <5 0 <br /> 6/21/2004 -14 594 <100000 <100 <100 <100 <200 <100 61 000 43 635 <50 <0 50 <0 50 <0 50 <1 0 <5 0 4 0 <br /> IF <br /> Definitions Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline a =Sampled by Gettler-Ryan Inc <br /> MtBE=Methyl tert-butyl ether — =Data not available <br /> ppb=Parts per billion <br /> ORP=O)adabon Reduction Potential <br /> I <br />