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~ III IIIIIIIIIIIII III ~ <br />STATE OF COLORADO <br />Roy Romer, Gove <br />DEPARTMENT OF NATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />FRED R. BANTA, Director <br />DATE: June 8, 1989 <br />T0: Mike Applegate <br />FROM: Nlichael J. Boyd, Reclamation Specialist /~~~ <br />RE: File No. M-89-029 <br />Adequacy Items <br />The following items must be addressed by the applicant in order to satisfy the <br />applicable requirements of C.R.S. 34-32-101 et seq. and the Mineral Rules and <br />Regulations of the Mined Land Reclamation Board- <br />Diawatering. Please provide details regarding your proposed dewatering <br />olrera~ions. What pumping rate do you anticipate will be necessary to <br />de~water the site? During what time periods do you intend to operate <br />the site each year? Will pooping be intermittent or continuous during <br />ttis period. Also, please provide information regarding the location <br />and design of the proposed dewatering trench? <br />2. Ditch Reclamation. The mapping provided indicates that a segment of <br />th' o in an avis Ditch will be relocated. Please provide <br />information describing this feature, including its physical <br />characteristics and capacity. Will the proposed changes in alignment <br />arni gradient pose any problems with maintaining the present capacity of <br />this structure? <br />Ponds/Shorelines. Have you considered whether or not additional <br />protective measures may be necessary to control wave action and prevent <br />erosion on shorelines exposed to prevailing winds? One possibility may <br />be to place riprap along the exposed shorelines. Another may be to <br />provide a region from 5' above the 10' below the water line of lesser <br />slopes to reduce wave action and provide an area of shallows for fish <br />habitat. We also encourage you to consider the possibility of creating <br />several smaller (15 acre) ponds with irregular shorelines rather than <br />two large ponds. This would provide additional wildlife benefits as <br />well as providing a more stable hydraulic/hydrologic configuration. <br />Alternate Mining Plan. Page D-1 of the application contains the <br />1~oT'owin9 statement: "If groundwater inflow into the pit becomes too <br />voluminous to handle efficiently the operator may change mining methods <br />215 Centennial Building, ~ 313 Sherman Street Denver, Colorado 80203-2273 Tel. (303j 866-3567 <br />