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OZONE-SFARGING REMEDIATION SYSTEM <br /> DISSOLVED OXYGEN CONCENTRATIONS IN SURROUNDING MONITORING WELLS <br /> SINGH'S UNOCAL <br /> 574 WEST GRANT LINE ROAD, TRACY, CALIFORN IA <br /> DISSOLVED OXYGEN. CONTENT (mg/L) <br /> DATE MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 <br /> 8/13/2002* 0.38 0.35 0.56 0.20 0.75 5.54 <br /> 8/15/02 0.25 0.43 0.70 1.24 0.32 1.74 <br /> 8116/02 0.30 0.83 1.94 3.32 0.85 3.52 <br /> 8/19/02 0.24 0.20 1.21 2:90 0.61 3.67 <br /> - 8120102 0.31 0.67 1.42 2:80 0.83 3.82 <br /> 8/30/02 0.22 0.79 1.53 4.13 0.46 4.60 <br /> 9/6102 0.59 0.65 1.04 5.54 0.91 5.11 <br /> 9111102 0.56 0.67 1.88 5.60 0.76 5.21 <br /> 9/19/02 0.64 0.91 1.92 5.62 0,81 5.28 <br /> 9/26/02 0.48 0.34 2.21 7.05 0.69 5.02 <br /> 10/3/02 0.41 0.33 1.98 6.85 0.66 4.87 <br /> 10/10/02 0.23 0.29 . 1.12 5.63 0.76 4,80 <br /> 10/16/02 0.39 0.80 1.98 8.38 0.85 5.13 <br /> 10/31/02 0.41 0.71 1.10 8.32 0.72 5.11 <br /> 11/6/02 0.56 0.68 1.64 7.37 0.62 4.98 <br /> 11/15/02 0.54 0.72 1.75 7.27 0.65 4.75 <br /> 11/22/02 0.38 0.65 1.66 7.66 0.75 4.62 <br /> 11/28/02 0.44 0.58 1.55 6.95 0.72 4.95 <br /> 1214102 0.42 0.44 1.69 6.85 0.69 5.21 <br /> T~ 12112/02 -0.39 0:69 1.72 7.23 0,73 4.32 <br /> 12/20/02 0.51 0.71 1.33 6.90 0.81 4.11 <br /> 12/30/02 0.50 0.58 1.52 6.85 0.74 . 5.25 <br /> i <br /> V9103 0.48 0.66 1.32 7.21 0.66 4.22 <br /> 1/15/03 0.38 0.68 1.44 7.23 0.58 4.56 <br /> a <br /> NOTE: <br /> The a5teriok Symbol (') 5howe the di000lved oxygen concentrations in the Surrounding <br /> monitoring wells prior to turning the ozone-5parging System on. <br /> l <br />