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i KIRKLAND CONSTRUCTION R.L.L.P. P.O. Box 580 Rye, Colorado 81069 Equal Opporlumry Em ployar March 6, 1998 • III IIIIIIIIIIIIIIII 719 / 489.3385 FAX 719 / 489.2265 RECEIVED Division of Mineral and Geology Department of Natural Resources 1313 Sherman Street, Room 215 Denver, CO 80203 Attention: James C. Stevens Re: Two Rivers Pit File M-98-010 Dear Mr. Stevens MAR 10 ~ggg Division of Minerals & Geobgy Following is our response to the concerns you have identified in the adequacy review of the 111 permit application for Two Rivers Pit, File M-98-010. Exhibit C. part b: Stabilization of the topsoil stockpile with vegetative cover will be enacted if this material is not utilized within one growing season. Exhibit C, part f: See Exhibit Map E for dimensions and outline of the pit itself. Blue defines the permit area. Yellow defines the mine area. Exhibit C. part h: The amount of water estimated for dust control is approximately 2000 gallons per day. The estimated amount of water for a wash plant, if needed, is approximately 12,000 gallons per day. Exhibit C, parts i and is Ground water disturbance is not anticipated. The only surface water on site now is impounded in the stock dam. Any storm water will be handled by constructing silt fences and berms in the low spots before any water could exit the mine area. Exhibit C: I do not anticipate any discharges of chemical pollutants or polluted water from the asphalt or concrete plants; however, we will have a berm encompassing the plant site and a I-IDPE lined sediment pond at the low spot inside the bermed area if such a discharge should ever occur. Exhibit D: Storm water control devices, sediment basins, and silt fences will be utilized within the areas being disturbed in the locations where water will be exiting the mined property. Control measures will be installed and maintained prior to ground disturbance, during mining, and reclamation.