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2015 Water Balance: Loioff Pit Substitute Water Supply Plan <br />Milan aC <br />Table( <br />Submitted by: <br />Paul Weiss, P.E. <br />5255 Ronald Reagan Boulevard, Suite 220 <br />Johnstown, CO 80534 <br />Depletions <br />Replacements <br />Month <br />Monthly <br />Net <br />Evap <br />(ft) <br />Exposed <br />Water <br />Surface Area <br />(acres) <br />Evaporative <br />Losses <br />(ac -ft) <br />Mining <br />Production <br />(tons) <br />Water <br />Retained <br />in Material <br />(ac -ft) <br />Water <br />Used For <br />DustControl <br />(ac -ft) <br />Total <br />CU <br />(ac -ft) <br />lagged <br />Depletions <br />4c -ft) <br />GIC <br />Deliveries <br />(ac -ft) <br />GIC Return <br />Flow <br />Obligation <br />(ac -ft) <br />. GIC <br />Net <br />Credit <br />(ac -ft) <br />Greeley <br />Leased <br />Effluent <br />(ac -ft) <br />Water <br />Balance <br />(ac -ft) <br />(A) <br />(B) <br />(C) <br />(D) <br />(E) <br />(F) <br />(6) <br />(H) <br />(I) <br />() <br />(K) <br />(1) <br />(P4 <br />Jan -15 <br />0.09 <br />1.52 <br />0.13 <br />24,000 <br />0.35 <br />0.20 <br />0.69 <br />1.26 <br />0.00 <br />0.35 <br />-0.35 <br />L75 <br />0.14 <br />Feb -15 <br />0.10 <br />1.52 <br />0.16 <br />24,000 <br />0.35 <br />0.20 <br />0.71 <br />1.19 <br />0.00 <br />0.33 <br />-0.33 <br />1.75 <br />0.73 <br />Mar -15 <br />0.16 <br />1.52 <br />0.24 <br />24,000 <br />0.35 <br />0.40 <br />1.00 <br />1.19 <br />0.00 <br />0.31 <br />-0.31 <br />175 <br />0.25 <br />Apr -15 <br />0.26 <br />1.52 <br />0.40 <br />36,000 <br />0.53 <br />0.40 <br />1.33 <br />1.28 <br />118 <br />057 <br />0.61 <br />L50 <br />0.83 <br />May -15 <br />0.35 <br />1.52 <br />0.53 <br />60,000 <br />088 <br />0.40 <br />1.81 <br />1.44 <br />3.14 <br />1.09 <br />2.05 <br />0.00 <br />0.61 <br />Jun -15 <br />0.42 <br />1.52 <br />0.64 <br />60,000 <br />0.88 <br />0.40 <br />1.93 <br />1.61 <br />3.33 <br />1.19 <br />2.15 <br />0.00 <br />0.54 <br />Jul -15 <br />0.44 <br />1.52 <br />0.67 <br />64,000 <br />0.94 <br />0.50 <br />2.11 <br />1.74 <br />4.31 <br />1.46 <br />2.86 <br />0.00 <br />1.12 <br />Aug -15 <br />0:39 <br />1.52 <br />0.60 <br />64,000 <br />0.94 <br />0.50 <br />2.04 <br />1.82 <br />3.72 <br />1.35 <br />2.38 <br />0.00 <br />0.56 <br />Sep -15 <br />0.29 <br />152 <br />0.44 <br />60,000 <br />0.88 <br />0.40 <br />1.73 <br />1.81 <br />2.35 <br />102 <br />1.33 <br />1.00 <br />0.52 <br />Oct -15 <br />0.20 <br />1.52 <br />0.31 <br />36,000 <br />0.53 <br />0.30 <br />1.14 <br />1.66 <br />1.57 <br />0.82 <br />0.75 <br />1.00 <br />0.09 <br />Nov -15 <br />0.12 <br />1.52 <br />0.18 <br />24,000 <br />0.35 <br />0.20 <br />0.73 <br />1.43 <br />0.00 <br />0.41 <br />-0.41 <br />2.00 <br />0.16 <br />Dec -15 <br />0.09 <br />1.52 <br />0.13 <br />24,000 <br />0.35 <br />0.20 <br />0.69 <br />1.24 <br />0.00 <br />0.39 <br />-0.39 <br />2.00 <br />0.37 <br />TOTAL <br />2.92 <br />4.43500,000 <br />7.36 <br />4.10 <br />15.89 <br />17.67 <br />19.6 <br />9.28 <br />10.32 <br />12.7s <br />5.40 <br />Notes: <br />(A) Monthfrevaporation <br />(B) Exposed water surface <br />(C) Monthly evaporation =(C) x (B) <br />(0) Estimated Production <br />(E) Water Retained in Material, assuming 2% Retention <br />(9 Estimated Water Use for Dust Control <br />(6) Total Consumptive Use = (C) +(E) + (9 <br />(H) lagged Depletions computed with AWAS <br />(1) Estimated GIC Deliveries per share <br />(3) Return Flow associated with one share of GIC <br />(K) Net River Credit for GIC share <br />(L) Effluent Credit from City of Greeley <br />(M) Net Impact toPoudre River =(K)+(L)-(H) <br />WWC Water Resource Engineering <br />