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Kaufman and Sons, Inc. Month: <br /> Wagner/Kaufman Pit#3 Year: <br /> SUBSTITUTE WATER SUPPLY PLAN <br /> MONTHLY ACCOUNTING FORM <br /> DESCRIPTION TOTALS FOR MONTH YTD <br /> 1 Sand and Gravel Production (tons) <br /> 2 Moisture Loss in Material (ac-ft) <br /> 3 Evaporation (ac-ft) <br /> 2= (tons of material mined '0.04 ' 2000/62.4)143560 <br /> 3 = monthly net evaporation .exposed water surface area <br /> Exposed water surface area= acres <br /> Month Monthly Net Evaporation ft <br /> Jan 0.07 <br /> Feb 0.08 <br /> Mar 0.09 <br /> Apr 0.19 <br /> May 0.25 <br /> Jun 0.35 <br /> Jul 0.39 <br /> Aug0.35 <br /> Sep 0.21 <br /> Oct 0.18 <br /> Nov 0.08 <br /> Dec 0.08 <br /> Gross Annual Evaporation = 38 inches <br /> Annual Precipitation = 14.74 inches (from Loveland NCWCD Station) <br />