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1 <br /> COULSON EXCAVATING COMPANY, INC. Month: <br /> CHALLENGER PIT Year. <br /> SUBSTITUTE WATER SUPPLY PLAN <br /> MONTHLY ACCOUNTING FORM <br /> DESCRIPTION TOTALS FOR MONTH <br /> 1 Sand and Gravel Production (tons) <br /> 2 Moisture Loss in Material(ao-ft) <br /> 3 Dust Control(ao-ft) <br /> 4 Evaporation(ao-ft) <br /> Totals(ac-ft)[Line 2+Line 3+Line 41 <br /> 2=(tons of material mined'0.04 '2000!62.4)143560 <br /> 3=(gallons used 17.48)143560 <br /> 4=monthly net evaporation'exposed water surface area <br /> Exposed water surface area= acres <br /> Month Monthly Net Evaporatlon ft) <br /> Jan 0.08 <br /> Feb 0.10 <br /> Mar 0.14 <br /> r 0.22 <br /> May 0.27 <br /> Jun 0.38 <br /> Jul 0.43 <br /> Aug0.40 <br /> Sep 0.29 <br /> Oct 0.18 <br /> Nov 0.11 <br /> Dec 0.08 <br /> Gross Annual Evaporation =41 inches <br /> Annual Precipitation= 12.54 inches (taken from Windsor Weather Station) i <br />