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Table 22 <br />CDCR EW-2 Step Test Results <br />Forward Landfill, Manteca, California <br />Time <br />(min) <br />Pumping <br />Rate <br />(gpm) <br />Depth to <br />Water <br />(ft btoc) <br />Drawdown <br />(ft) <br />Water <br />Column in <br />Well1 <br />(ft) <br />Percentage <br />Water <br />Column <br />Drawdown <br />Water Column <br />Above Screen <br />(ft) <br />Specific Capacity <br />(gal/ft drawdown) <br />Average <br />Specific <br />Capacity per <br />Step <br />Static 0 0 50.75 0.00 73.25 0%53.25 -- <br />5 10.1 55.27 4.52 68.73 6%48.73 2.2 <br />15 10.1 55.28 4.53 68.72 6%48.72 2.2 <br />30 10.1 55.29 4.54 68.71 6%48.71 2.2 <br />40 15.1 58.18 7.43 65.82 10%45.82 2.0 <br />50 15.1 58.20 7.45 65.80 10%45.80 2.0 <br />60 15.1 58.22 7.47 65.78 10%45.78 2.0 <br />70 20.1 61.26 10.51 62.74 14%42.74 1.9 <br />80 20.1 61.36 10.61 62.64 14%42.64 1.9 <br />120 20.1 61.43 10.68 62.57 15%42.57 1.9 <br />130 24.4 64.21 13.46 59.79 18%39.79 1.8 <br />160 24.4 64.37 13.62 59.63 19%39.63 1.8 <br />200 24.4 64.52 13.77 59.48 19%39.48 1.8 <br />Notes: <br />1 - Water column is considered to bottom of screen and does not include the well sump <br />ft - feet <br />gpm - gallons per minute <br />min - minute <br />btoc - below top of casing <br />% - Percentage <br />gal/ft drawdown - gallons per foot of drawdownStep 12.2 <br />Step 22.0 <br />Step 31.9 <br />Step 41.8 <br />Page 1 of 1