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Table 3 <br />Martin Marietta <br />Overland Ponds Site <br />Evaporative and Operational Consumptive Use <br />Month <br />Percent of <br />Annual <br />Evaporation <br />(A <br />Gross Lake <br />Evaporation <br />(ft) <br />B <br />Evaporation <br />Effective <br />Precipitation Precipitation <br />(in) (ft) <br />C (D <br />Net Lake Net Exposed <br />Evaporation Water SurfaceEvaporation <br />(acre-ft/acre) (acre) <br />E ( <br />Total Lake <br />(acre-feet) <br />(G <br />Crushed <br />Aggregate <br />(tons) <br />Washed <br />Aggregate <br />(tons) <br />(I <br />Operation I <br />Water Retained <br />in Product <br />(acre-feet) <br />J <br />Water Used foronsumptive <br />Dust Control <br />(acre-feet)acre-feet) <br />KM <br />M(acre-fect) <br />Total <br />Use <br />Total <br />Lagged <br />Depletions <br />(acre-feet) <br />NJan-15 <br />3.0% <br />0.10 <br />0.36 <br />0.02 <br />000 <br />000 <br />000 <br />21,200 <br />31,800 <br />1 25 <br />0001.25 <br />1.66 <br />Feb -15 <br />3 5% <br />0iI <br />0.48 <br />003 <br />000 <br />000 <br />0.00 <br />23,400 <br />28,600 <br />1.19 <br />000 <br />1.19 <br />141 <br />Mar -15 <br />55% <br />0.17 <br />1 18 <br />0.07 <br />0.11 <br />000 <br />0.00 <br />35,550 <br />43,450 <br />1.80 <br />000 <br />1 80 <br />1.80 <br />145 <br />Apr- 15 <br />9 0% <br />0.29 <br />1 97 <br />Oil <br />0.17 <br />0.00 <br />000 <br />36,000 <br />44,000 <br />1.82 <br />0.00 <br />1 82 <br />1.82 <br />1 65 <br />May- 15 <br />12.0% <br />038 <br />274 <br />0.16 <br />022 <br />0.00 <br />0.00 <br />0 <br />0 <br />000 <br />0.00 <br />000 <br />0.00 <br />1.24 <br />Jun -15 <br />14.5% <br />046 <br />1 83 <br />Oil <br />035 <br />000 <br />0.00 <br />0 <br />0 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.55 <br />Jul -15 <br />15.0% <br />048 <br />1 62 <br />009 <br />0.38 <br />000 <br />000 <br />0 <br />0 <br />0.00 <br />0.00 <br />000 <br />0.00 <br />0.22 <br />Aug-] 5 <br />13.50/. <br />043 <br />1.42 <br />0.08 <br />034 <br />000 <br />000 1 <br />0 <br />0 <br />0.00 <br />0.00 <br />000 <br />0.00 <br />0.09 <br />Sep- 15 <br />10.0% <br />032 <br />127 <br />007 <br />1 024 <br />000 <br />0.00 <br />0 1 <br />0 <br />000 <br />000 <br />0.00 <br />0.00 <br />004 <br />Oct -15 <br />7.0% <br />022 <br />1 1 13 <br />0.07 <br />0.16 <br />0.00 <br />000 <br />0 <br />0 <br />000 <br />0.00 <br />0.00 <br />0.00 <br />002 <br />Nov -15 <br />4.0% <br />0 13 <br />0.59 <br />003 <br />0.09 <br />0.00 <br />000 <br />0 <br />0 <br />000 <br />000 <br />000 <br />0.00 <br />0.01 <br />Dec -15 <br />3.0% <br />0.10 <br />049 <br />0.03 <br />0.00 <br />0.00 <br />0.00 <br />0 <br />0 <br />000 <br />000 <br />0.00 <br />000 <br />000 <br />Total <br />100% <br />3.17 <br />1 15.08 <br />0.88 <br />2.06 <br />0.00 <br />116,150 <br />147,850 <br />6.06 <br />0.00 <br />6.06 <br />6.06 <br />8.33 <br />Gross Exposed Water Surface 0.00 acres within current permit boundary <br />Annual Precipitation = 1 15.5 inches -Based on Western Regional Climate Center Fort Collins, CO Station (050035) <br />Gross Annual Evaporation = 38 inches -Taken from NOAA Technical Report NWS 33 <br />Notes <br />(A) Taken from General Guidelines for Substitute Water Supply Plans for Sand and GrLn el Pits Submitted to The Stare Engineer <br />(B) Gross lake evaporation = (A) *(Gross Annual Evaporation / 12). <br />(C) Estimated using annual precipitation and monthly distribution of precipitation from the Western Regional Climate Center - Fort Collins, CO (050035) <br />(D) Effective precipitation = 0.7*(C)/12. <br />(E) Net lake evaporation from exposed water surfaces = (B) - (D), there is no evaporation December - February due to below -freezing average monthly temperatures. <br />(F) Net exposed surface area No exposed surface area is expected to be exposed through 2015. <br />(G) Total lake evaporation from exposed water surfaces = (E) * (F) <br />(11) Crushed aggregate amounts provided by Martin Marietta. <br />(1) Washed aggregate amounts provided by Martin Marietta <br />(J) Water retained in product equals 4% of total weight of washed aggregate produced and 2% of total weight of crushed aggregate produced <br />(K) Dust control water volumes provided by Martin Marietta. <br />(L) Equals (J) + (K). <br />(M) Equals (G)+ (L) <br />(G) Lagging calculations were based on the following parameters <br />Distance from stream = 2,000 ft, Transmissivity = 160,000 gpd/ft, Specific Yield = 0.2, No -flow Boundary = 3,000 ft <br />0� BBA <br />