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Table 2 <br /> Ozone Injection System Groundwater Monitoring Data <br /> 76(Former BP)Station No.11195 <br /> 16500 Interstate 5 South,Lathrop,California <br /> MonitoringWell:MW-3 MonitoringWell:MW-10 <br /> Ethyl- Xylenes Ethyl- Xylenes <br /> ORP DO TPHg Benzene Toluene benzene (total) MtBE ORP DO TPHg Benzene Toluene benzene {total) MtBE <br /> Date mV m 11 (Vg/1) (pgrq {Ngn) (ugfi) (Nan) (wo mV m 11 (ilgrq (ugn) (Nen) (Merl) (p9n) (YO) <br /> 1111812002 a - <500 <5.0 <5.0 <5.0 <10.0 1,300 <500 <5.0 <5.0 <5.0 <10 860 <br /> 2/1 312 00 3 a -- - <500 <5.0 <5.0 <5.0 <10.0 1,500 - - <50 <0.50 <0.50 <0.50 <1.0 53 <br /> 312112003 a - - 320 <0.50 <0.50 <0.50 <0.50 1,700 - - <50 <0.50 <0.50 <0.50 <1.0 5.1 <br /> 4!2212003 a - - 6,700 <2.5 <2.5 <2.5 <2.5 4,400 - -- <50 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> 5/1 212 00 3 a - <1000 <10 <10 <10 <20 1,300 - - <50 <0.50 <0.50 <0.50 <1.0 <2.0 <br /> 6/20/2003 a -- - 140 <0.50 <0.50 <0.50 <0.50 180 - - <50 <0.50 <0.50 <0.50 <0.50 1.5 <br /> 9/23/2003 - 11,000 <50 <50 <50 <50 13,000 - - <50 <0.50 <0.50 <0.50 <0.50 <5.0 <br /> 10131/2003 - <5000 <50 <50 <50 <100 6,700 - - <50 <0.50 2.4 <0.50 2.0 0.60 <br /> 1/20/2004 100 -- 630 <5 <5 <5.0 <10 1,100 142 -- <50 <0.50 <0.50 <0.50 <1.0 <2.0 <br /> 2/27/2004 105 <250 <2.5 <2.5 <2.5 <5.0 300 137 -- <50 <0.50 <0.50 <0.50 <1.0 11 <br /> 3/31/2004 68 -- 220 <1.0 <1.0 <1.0 <2.0 270 128 -- <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 412712004 b 93 1.45 1300 <10 <10 <10 <20 1,200 90 2.39 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 5/25/2004 54 6.46 1600 <10 <10 <10 <20 1,600 56 6.49 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 6/16/2004 37 5.46 760 1 <2.5 <2.5 <2.5 <5.0 850 87 6.45 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 7/6/2004 15 6.47 260 1.9 <1.0 <1.0 <1.0 210 94 5.97 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 8/9/2004 -9 5.67 120 <0.50 <0.50 <0.50 <1.0 120 94 5.93 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 9/23/2004 -39 c 200 <1.0 <1.0 <1.0 <2.0 180 51 c 70 <0.50 <0.50 <0.50 <1.0 8.0 <br /> 10/22/2004 -51 1.89 110 <0.50 <0.50 <0.50 <1.0 94 47 3.40 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 11/5/2004 6 2.67 180 <1.0 <1.0 <1.0 <2.0 130 56 3.94 <50 <0.50 <0.50 <0.50 <1.0 0.97 <br /> 1202004 b 99 6.75 330 <1.0 <1.0 <1.0 <2.0 330 102 5.15 71 <0.50 <0.50 <0.50 <1.0 1.1 <br /> 1/10/2005 43 5.88 <50 <0.50 <0.50 <0.50 <1.0 380 83 6.05 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 2/28/2005 172 6.39 <5 1 <0.50 <0.50 <0.50 <1.0 20 192 8.21 1 <50 <0.50 <0.50 <0.50 <1.0 160 <br /> 3/29/2005 148 8.16 <50 <0.50 1 <0.50 <0.50 <1.0 22 179 7.57 <50 1 <0.50 1 <0.50 <0.50 <1.0 <0.50 <br /> Definitions: Notes: <br /> TPHg=Total petroleum hydrocarbons as gasoline or gasoline range organics(GRO) - =Data not available <br /> MtBE=Methyl tert-butyl ether a =Sampled by Gettler-Ryan,Inc. <br /> pg/L=Micrograms per liter b =Hydrocarbon in gasoline range does not match laboratory gasoline standard. <br /> µg11=Micrograms per liter c =No data due to meter malfunction <br /> ORP=Oxidation Reduction Potential d =Data not available at time of reporting <br /> mV=Miiivolts <br /> DO=Dissolved Oxygen <br /> mgll=Miligrams per liter <br /> I;0onmoPhillipslRetail 3ites11119510&m511195 RM&R Ozone Sparge Workbook.As Page 1 of 1 <br /> __------ <br /> .=� :c�4 .^., ....................--.-.:- ._ -- +,--- <br />