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4 <br /> Table 2 - Performance Test Data-April 9, 1999 <br /> Tosco 76 Branded Facility No. 11195 <br /> 16500 South Interstate Five <br /> Lathrop, California <br /> Elapsed Conductor Casing(CC) MW-3 MW-4 MW-6 Notes <br /> Time in Depth to Depth to Depth to Depth to <br /> Minutes Groundwater Groundwater/ Groundwater/ Groundwater/ <br /> 45' from CC 8' from CC 114' from CC <br /> 0 8.51 8.48 7.78 -- Start pumping groundwater <br /> 5 9.02 8.53 7.82 -- <br /> 10 9.22 8.63 .7.89 7.03 <br /> 15 9.72 8.72 7.95 7.04 <br /> 20 9:86 8.82 7.99 7.07 <br /> 25 10.27 8.90 8.05 7.10 <br /> 30 10.43 9.01 8.09 7.13 <br /> 35 -- 9.10 8.15 7.15 Stop pumping;--5,000 gallons <br /> 40 9.80 9.15 8.16 7.17 <br /> 45 9.64 9.17 8.15 7.20 <br /> 50 9.58 9.17 8.15 7.20 <br /> 55 1 9.53 9.18 8.14 7.21 <br /> 60 9.50 9.16 8.14 7.21 <br /> 65 J, 9.47 9.15 8.14 7:22 <br /> 70 9.44 9.14 8.14 7.22 <br /> 75 9.42 9.13 8.13 7.23 <br /> 80 9.40 9.12 8.13 7.23 <br /> 85 9.39 9.11 8.12 7.23 <br /> 90 9.36 9.10 8.12 7.23 <br /> 100 9.32 9.07 8.1 f 7.23 <br /> 110 9.30 9.06 8.11 7.22 <br /> 120 9.28 9.05 8.10 7.22 <br /> 130 9.24 9.03 8.09 7.22 <br /> 140 9.22 9.02 8.09 7.22 <br /> 150 9.20 9.00 8.08 7.22 <br /> 160 9.18 8.99 8.08' 7.22 1 hour 40 minutes total time <br /> 1.98'drawdown(until dry) 0.70'drawdown 038'drawdown 0.20'drawdown <br /> in 35 minutes in 55 minutes in 40 minutes in 75 minutes <br /> Notes: <br /> Depth to groundwater measured from top of casing. <br /> (CC) = Conductor Casing <br /> -- =not measured <br /> i <br /> 140193.07 1 6/17/99 <br /> i, <br />