Laserfiche WebLink
<br />Quarterly analysis of the following parameters is to be <br />performed on water from these three sites when they are not <br />dry or frozen: <br />pH Sodium <br />Conductivity at 25°C Sulfate <br />Total Dissolved Solids Arsenic <br />Total Suspended Solids Iron <br />Bicarbonate Lead <br />Calcium Manganese <br />Magnesium Mercury <br />Ammonia Selenium <br />Nitrate-Nitrite Zinc <br />Phosphate <br />There is no sampling site upstream of the mine on Taylor <br />Creek because the head of the Taylor Creek watershed will be <br />mined through by the Section 16 Pit. <br />In addition to the monitoring discussed above, the operator <br />is required to monitor discharges from all NPDES discharge <br />points (sediment ponds) as required by the mine's NPDES <br />permit. Results of this monitoring are reported to the <br />Colorado Department of Health on a quarterly basis and to the <br />Division on a yearly basis. <br />H <br />Transfer of Wells <br />No transfer of wells is proposed. All monitoring wells will <br />be reclaimed prior to bond release (4.05.14). <br />I <br />J <br />K <br />Discharge of Water into an Underground Mine <br />1. No surface water will be discharged into underground mine <br />workings (4.05.15). <br />Stream Buffer Zones <br />1. The Division proposes to approve surface or underground <br />mining activities within 100 feet or through a perennial <br />stream or stream with a biological community. This decision <br />is based on a finding that the original stream channel will <br />be restored, water quality and quantity shall not be <br />adversely affected, and appropriate riparian vegetation will <br />be reestablished. The buffer zone variance is granted for <br />portions of Goodspring Creek near the sediment ponds which <br />discharge into that creek, and Taylor Creek near the loadout <br />(4.05.18(1)). <br />Probable Hydrologic Consequences <br />A discussion of the probable hydrologic impacts of mining and <br />reclamation operations is contained in pages 2.04.7-85 through 101 <br />_19_ <br />