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Cross Gold Mine <br />December 2024 G1-4 <br /> <br /> <br />The Waste Rock Landform will drain to a sediment pond installed at its toe. The sediment pond <br />will contain the 10-YR event with at least 1-foot of freeboard. The sediment pond will discharge <br />to Coon Track Creek via its own discharge pipe. Table G1-1 compares the runoff volume to the <br />sediment capacity. <br />Table G1-1. Waste Rock Landform Drainage Basin Runoff and Sediment Pond Volume <br />Drainage Basin 10-YR Runoff Volume (ac-ft) Sediment Pond Capacity (ac-ft) <br />Basin 5 – Idaho Tunnel Operations <br />Area <br />0.065 0.533 <br />Stormwater control measures at the Cross Gold Mine have been designed and evaluated for sufficiency <br />by a professional engineer licensed in the State of Colorado. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />