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120th Estates Partners Sand and Gravel Mine <br /> Les Ewegen, Project Manager <br /> 4545 East 60"` Avenue, Suite 102 <br /> Commerce City, CO 80022 <br /> (970) 454-3039 <br />MONTH: YEAR: <br />Sand and Gravel Production: <br />Monthly Total: tons = [A] <br />YTD: tons <br />Exposed Water Surface Areas: <br />Rinse Water Lagoon: acres <br />Dewatering Pond: acres <br />Monthly Total: acres = [B] <br />Water Loss in Material: <br />Monthly Total: acre-feet = ([A] x 0.04 x 2000 / 62.4) / 43560 = [C] <br />YTD: acre-feet <br />Dust Suppression: <br />Monthly Total: acre-feet applied = [D] <br />YTD: acre-feet applied <br />Evaporation: <br />Monthly Total: acre-feet = Monthly Net Evaporation (below) x [B] = [El <br />YTD: acre-feet <br />Total Water Use = [C] + [D] + [E] <br />Monthly Total: <br />YTD: <br />Replacement Water Required: <br />Monthly Total: <br />YTD: <br />acre-feet <br />acre-feet <br />acre-feet (Table 3, Column 2) <br />acre-feet <br />Lagged Accretions from Henderson Ski Lake: <br />Monthly Total: acre-feet (Table 3, Column 4) <br />YTD: acre-feet <br />Augmentation Water From Brighton: <br />Monthly Total: acre-feet <br />Source: <br />YTD: acre-feet <br />Total Augmentation Water: <br />Monthly Total: acre-feet <br />YTD: acre-feet <br /> <br /> <br />Month Monthly Net <br />Evaporation <br />(Feet) <br />JAN 0.08 <br />FEB 0.10 <br />MAR 0.13 <br />APR 0.24 <br />MAY 0.31 <br />JUN 0.44 <br />JUL 0.45 <br />AUG 0.42 <br />SEP 0.30 <br />OCT 0.21 <br />NOV 0.10 <br />DEC 0.08