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Lotoff Pit <br />EvaporaN-- tosses <br />Table 1 <br />Total Exposed Water Surface Areal <br />Distribution of Annual Evaporation' <br />Net Free Water Surface Evaporation (feet)3 <br />Net Evaporation at Loloff Pit (ac -ft) <br />1.521 <br />acres <br />weasconetizas <br />Submitted by: <br />Paul Weiss, P.E. <br />5255 Ronald Reagan Boulevard, Suite 220 <br />Johnstown, CO 80534 <br />January <br />February <br />March <br />April <br />May <br />June <br />July <br />August <br />September <br />October <br />November <br />December <br />TOTAL <br />0.030 <br />0.035 <br />0.055 <br />0.090 <br />0.120 <br />0.145 <br />0.150 <br />0135 <br />0.100 <br />0.070 <br />Q040 <br />0030 <br />1.000 <br />0088 <br />0.102 <br />0.160 <br />0.263 <br />0.350 <br />0.423 <br />0.438 <br />0.394 <br />0.292 <br />0204 <br />0.117 <br />aoe8 <br />2.917 <br />0.133 <br />0.155 <br />0.244 <br />0.399 <br />0.532 <br />0.643 <br />Q665 <br />0599 <br />0.443 <br />0.310 <br />0.177 <br />0.133 <br />4.433 <br />Notes: <br />See Map2 for the delineation of the de -watering pond exposed water surface area. <br />' Distribution of annual evaporation per DWR Guidelines for gravel pits at elevations below 6,500feet. <br />'Annual gross evaporation rate of 45 incises taken from NOAA Technical Report NWS 33. <br />Consistent with previously approved Loloff SWSP, a credit of 9.97 inches of effective preapitation results in approximately 35 inches net evaporation. <br />Loloff Pit <br />Production losses <br />Table 2 <br />Monthly Production (tons) <br />Water Retained in Product (ac -ft)' <br />Water used for Dust Control (ac -ft) <br />Total Production Losses (ac -ft) <br />%tamsand 1 CanniksLLC <br />Submitted by: <br />Paul Weiss, P.E. <br />5255 Ronald Reagan Boulevard, Suite 220 <br />Johnstown, CO 80534 <br />January <br />February <br />Mardi <br />April <br />May <br />June <br />July <br />August <br />ieptembet <br />October <br />November <br />December <br />TOTAL <br />24,000 <br />24,000 <br />24,000 <br />36,000 <br />60,000 <br />60,000 <br />64,000 <br />64,000 <br />60,000 <br />36,000 <br />24,000 <br />24,000 <br />500,000 <br />0.35 <br />0.35 <br />0.35 <br />0.53 <br />0.88 <br />0.88 <br />0.94 <br />0.94 <br />0.88 <br />0.53 <br />0.35 <br />0.35 <br />7.36 <br />0.20 <br />0.20 <br />0.40 <br />0.40 <br />0.40 <br />0.40 <br />0.50 <br />0.50 <br />0.40 <br />0.30 <br />0.20 <br />0.20 <br />4.10 <br />0.55 <br />0.55 <br />0.75 <br />0.93 <br />1.28 <br />1.28 <br />1.44 <br />1.44 <br />1.28 <br />0.83 <br />0.55 <br />0.55 <br />11.46 <br />Notes: <br />' Material mined below the ground water table, but in a dewatered state. Material has 2% moisture content. <br />WWC Water Resource Engineering <br />