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III ~II~I~lll~lll~ll CHIMNEY ROCK COAL ~ f ' <br />105 East Kiowa, Suite 200 • Colorado Springs, Colorado • 80903 • (303) 475-7005 <br />March 12, 1982 <br />Mr. Mike Long <br />Reclamation Specialist <br />Mined Land Reclamation Division <br />1313 Sherman Street, Room 423 <br />Denver, CO 80203 <br />Re: March 2, 1982 Inspection Report <br />Dear Mr. Long: <br />The purpose of this letter is to respond to a number of items <br />presented in the above referenced inspection report. In <br />particular, the information described under 4.05 Hydrologic <br />Balance and 4.08 Explosives. <br />4.05 Hydrologic Balance <br />First, surface mining operations have advanced in an up-dip <br />direction since the time of your inspection. Consequently, <br />pit water is not a current problem. In approximately two <br />months, mining operations will once again approach the <br />down-dip wherein pit water becomes a problem. By that time <br />we should be well on the way to solving the issue of pit <br />water treatment. In the interim, we will continue to draw <br />down the sediment pond to its full containment capacity. <br />Water from the pond is currently being pumped into the water <br />wagon for dust suppression. <br />Second, the inspection report indicates mine personnel were <br />observed pumping water from the pit into the sediment pond <br />prior to the on-site inspection. It further states that the <br />pond was completely filled and had discharged over the <br />emergency spillway. In order to confirm this, I contacted <br />the Mine Superintendent and Mine Foreman. I was informed <br />that the pond discharged through the principal spillway at <br />approximately 4:00 am on February 26, 1982. I also requested <br />backup data from our engineering department. The principal <br />spillway consists of 3 8" steel pipes approximately 8 feet <br />