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Month <br />(1) <br />(2) <br />(3) <br />(4) <br />(5) <br />Evaporation from <br />Exposed Ground Water <br />Depletions from Dust <br />Suppression <br />Depletions from Material <br />Removed <br />Depletions from Concrete <br />Batch Plant <br />Depletions for Existing <br />and Expanded <br />Operations <br />(acre feet) <br />(acre feet) <br />(acre feet) <br />(acre feet) <br />(acre feet) <br />Jan <br />0.00 <br />0.03 <br />0.29 <br />0.12 <br />0.44 <br />Feb <br />1.34 <br />0.03 <br />0.29 <br />0.11 <br />1.77 <br />Mar <br />4.23 <br />0.04 <br />0.29 <br />0.12 <br />4.69 <br />Apr <br />7.86 <br />0.04 <br />0.29 <br />0.19 <br />8.38 <br />May <br />11.61 <br />0.04 <br />0.29 <br />0.22 <br />12.16 <br />Jun <br />15.50 <br />0.05 <br />0.29 <br />0.44 <br />16.28 <br />Jul <br />14.37 <br />0.05 <br />0.29 <br />0.44 <br />15.15 <br />Aug <br />10.64 <br />0.05 <br />0.29 <br />0.44 <br />11.43 <br />Sep <br />9.03 <br />0.04 <br />0.29 <br />0.22 <br />9.58 <br />Oct <br />5.15 <br />0.04 <br />0.29 <br />0.19 <br />5.67 <br />Nov <br />2.25 <br />0.04 <br />0.29 <br />0.12 <br />2.71 <br />Dec <br />0.00 <br />0.04 <br />0.29 <br />0.12 <br />0.45 <br />Totals <br />I <br />82.0 I <br />0.49 I <br />3.53 <br />2.73 I <br />88.7 <br />Column Notes <br />Table 3 <br />Four Corners Materials - Bayfield Gravel Operation <br />Water Depletions for Year Three and Four <br />(1) Based on site specific evaporation calculations and 24.93 acres of current pit surface area and a 0.16 acre de- watering trench. <br />(2) From existing augmentation plan. <br />(3) Equals 120,000 tons of gravel removed and washed per year (10,000 tons per month) x 4% x (2,000 lbs / ton) / (62.5 lbs / ft 3 ) / (43,560 ft / AF). <br />(4) Depletions from batch plant cited from existing augmentation plan. <br />(5) Sum of columns 1 - 4 <br />P: \031 - 007\100 - Pine River\Bayfield Facility\SWSP\SWSP Renewal 2011\Red Dot Wright Water Engineers, Inc. <br />Bayfield PT SWSP Tables wcr Feb 17 2011 \Table 3 Depletions Current March 2011 <br />Des by: BAP <br />Ckd by: PRF <br />