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Table B-Historical Diesel Thickness Measurements and Product Recovery Data (6/18/99 through 11/9/05) Date Recovery Depth to Depth to Diesel Cumulative Operations and Maintenance Notes Well Floating Groundwater Thickness Diesel Diesel Removed (gallons) RW-1 sheen 13.79 sheen RW-2 14.44 14.79 0.35 20.30 7/30/04 RW-3 14.42 14.69 0.27 14.95 Skimmer pump in RW-4 set on(3)3-minute cycles/day. Approximately 22.00 gallons RW-4 13.94 14.20 0.26 90.70 in product recovery barrel.The battery was dead on arrival and was replaced. RW-5 - 13.62 - RW-6 14.19 14.32 0.13 1.25 RW-1 13.92 13.94 0.02 RW-2 14.59 14.97 0.38 20.30 8/5/04 RW-3 14.55 14.84 0.29 14.95 Skimmer pump in RW-4 set on(3)3-minute cycles/day. Approximately 22.25 gallons RW-4 14.10 14.41 0.31 90.95 in product recovery barrel.Battery voltage good at 12.72 volts. RW-5 - 13.77 - RW-6 14.35 14.52 0.17 1.25 RW-1 14.04 14.06 0.02 RW-2 14.69 15.56 0.87 20.30 Skimmer pump in RW-4 set on (3) 3-minute cycles/day. Two modified passive 8/13/04 RW-3 14.66 .14.99 0.33 14.95 skimmers were set in RW-2 and RW-3.Approximately 22.5 gallons in product recovery RW-4 14.20 14.67 0.47 91.20 barrel.Battery voltage good at 12.71 volts. Recovery wells are getting too dry to skim RW-5 - 13.93 - at. RW 6 14.47 14.67 0.20 1.25 RW-I 14.14 14.17 0.03 RW-2 15.02 15.41 0.39 20.30 Skimmer pump in RW-4 set on(3)3-minute cycles/day. Approximately 22.5 gallons in 8/19/04 RW-3 14.89 15.07 0.18 14.95 product recovery barrel.The level was misread and noted as 24.0 gallons on the field RW-4 14.27 14.91 0.64 91.20 form(corrected on 8/26/04 field form).Battery voltage good at 12.52 volts.Skimmer RW-5 - 14.05 - not effective due to low water levels in recovery wells. Skimmer system deactivated. RW-6 14.57 14.82 0.25 1.25 RW-1 14.27 14.30 0.03 RW-2 15.05 15.46 0.41 20.30 RW-3 14.93 15.11 0.18 14.95 8/26/04 Skimming system deactivated due to low water levels in the recovery wells. RW-4 14.37 15.39 1.02 91.20 RW-5 - 14.20 RW-6 14.70 15.01 0.31 1.25 RW-1 14.42 14.45 0.03 RW-2 15.14 15.48 0.34 20.30 Approximately 22.50 gallons it product recovery barrel.Skimmer pump in RW-4 had 9/3/04 RW-3 15.02 15.13 0.11 14.95 been deactivated daring the 8/26/04 event due to low fluid column levels.Two modified RW-4 14.47 15.62 1.15 91.20 passive skimmers were set in RW-2 and RW-3.Battery voltage good at 12.46 volts.No RW-5 - 14.37 - product recovered. RW-6 14.85 15.24 0.39 1.25 RW-1 - 14.59 - RW-2 15.49 20.30 10/8/04 RW-3 DRY DRY DRY 14.95 0.125 gallons recovered from RW-6.Approximately 22.63 gallons in product recovery RW4 14.86 15.61 0.75 91.20 barrel.The passive skimmer set it RW-3 was relocated to RW-6. RW-5 - 14.83 - R W-6 15.26 15.91 0.65 1.38 RW-I DRY DRY DRY RW-2 SHEEN 15.49 SHEEN 20.30 Skimming system removed from RW4.Small quantities of diesel were removed from 10/18/04 RW-3 DRY DRY DRY 14.95 the two modified passive skimmers set it RW-2 and RW-6(<0.01 gallons). Bailers RW-4 14.92 15.62 0.70 92.12 were used to remove 0.92 and 0.48 gallons from RW-4 and RW-6, respectively. RW-5 - 14.95 odor Approximately 24.04 gallons in product recovery barrel. RW 6 15.22 15.73 0.51 1.86 RW-1 14.31 14.32 0.01 A trace of diesel was removed from the bailer inspection sample from RW-1. The RW-2 15.08 15.49 0.41 20.55 modified passive skimmer set in RW-2 had insufficient fluid column to operate.Bailers RW-3 14.95 15.12 0.17 14.95 l 1/24/04 were used to remove 0.25, 1.20, and 0.45 gallons from RW-2, RW-4 and RW-6, RW-4 14.25 15.57 1.32 93.32 respectively.The passive skimmer set in RW-2 was relocated to RW4.Approximately RW-5 - 14.17 - 25.94 gallons in product recovery barrel. RW-6 14.68 15.17 0.49 2.31 RW-I 14.31 14.32 1 0.01 Diesel was removed from the two modified passive skimmers set it RW-4 and RW-6. RW-2 Unable to access well due to construction 20.55 Both skimmers were full and contained approximately 0.15 gallons each.Bailers were RW-3 14.94 15.13 0.19 14.95 12/23/04 used to remove 1.15 and 0.03 gallons from RW-4 and RW-6,respectively.The fluid RW-4 14.32 15.67 1.35 94.62 column it RW-3 was too short to bail diesel.Approximately 27.42 gallons in product RW-5 14.16 14.16 0.00 recovery barrel. RW-6 14.75 14.96 0.21 2.49 RW-1 Unable to access.Car parked over well. RW-2 Unable to access.Trailer parked over well. 20.55 Unable to access RW-I and RW-2 due to Site construction,RW-4 was submerged from 1/11/05 RW-3 13.92 I 13.98 I 0.06 14.95 recent rain event.Modified passive skimmers set in RW-4 and RW-6.Approximately RW-4 Unable to access.Flooded from rain event 94.62 0.13 gallons of product recovered from passive skimmer in RW-6.Approximately 27.4 RW-5 - 12.80 gallons in product recovery barrel RW-6 13.89 13.90 0.01 2.62 Table 8 111005 Pana R of 11