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laboratory alkalinity, bicarbonate, boron, calcium, dissolved solids, fluoride, <br />magnesium, potassium, sodium, sulfate, pH, specific conductance, temperature, <br />iron and manganese [4.05.13(1)]. There has been no gravity discharge from the <br />mine or pumped discharge since the mine was placed in permanent cessation. <br />2. The applicant will conduct monitoring of surface water in a manner approved by <br />the Division. The monitoring plan was submitted under 2.05.6(3)(b)(iv) and <br />includes [4.05.13(2)] three surface monitoring stations, one of the outflow of the <br />Harvey Gap reservoir above the mine, one of outflow of the Harvey Gap reservoir <br />below the mine, and one of discharges from the sedimentation pond. The <br />frequency and parameters of Harvey Gap reservoir flow monitoring is monthly <br />estimated flow, water temperature, pH and specific conductance; and semi-annual <br />(high and low) of the pazameters listed in paragraph G.1. above. Quarterly <br />sampling of sediment pond discharges are required in accordance with the <br />Colorado Department of Public Health and Environment discharge permit <br />number COG-850000, Facility No. COG-850019. Pazameters monitored include <br />pH, settleable solids, oil and grease, flow, and total dissolved solids. <br />H. Transfer of Wells <br />No wells are transferred [4.05.14 (2)]. <br />Discharge of Water into an Underground Mine <br />There is no discharge of water into an underground mine [4.05.16 and 4.05.3(1)(f)]. <br />Stream Buffer Zones <br />The Division proposes to perpetuate the previously-approved surface or underground <br />mining features within 100 feet of a stream with a biological corrtmunity. This decision <br />is based on a finding that there was no impact to the original stream channel, water <br />quality and quantity shall not be adversely affected, and riparian vegetation will be not <br />be adversely affected. The buffer zone variance is granted for the two riprap relief <br />drains off the reclaimed facilities and portal area, one terminating 26 feet from, and the <br />other terminating 33 feet from, the stream channel [4.05.18(1)]. <br />K. Probable Hydrologic Consequences [2.07.6(2)(c)] <br />The assessment of the probable cumulative impacts of all anticipated coal mining in <br />the general area on the hydrologic balance, as described in 2.05.6(3), has been made <br />by the Division. This assessment, entitled Cumulative Hvdrologic Impact Assessment <br />,for the Upper Colorado River Basin, Vo/ume II, is available for inspection at the <br />offices of the Division. The Division finds that the reclamation operations proposed <br />under the application have been designed to prevent damage to the hydrologic balance <br />outside the proposed permit area. <br />l2 03/06/00 <br />