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STATE OF COLORADO <br /> Roy Romer, Governor <br /> *1876 l <br /> �i <br /> DEPARTMENT OF NATURAL RESOURCES <br /> MINED LAND RECLAMATION DIVISION ; <br /> DAVID C. SHELTON, Director J <br /> July 1 , 1987 <br /> Mr. Doug Bowman <br /> Environmental Coordinator <br /> Mid-Continent Resources, Inc. <br /> Box 158 <br /> Carbondale, Colorado 81623 <br /> Re: C-81-017 - Ten-Day Notice - No. X-87-02-107-1 <br /> Dear Mr. Bowman: <br /> During the joint Federal/State inspection of June 23 to June 26, it was noted <br /> the lower rock tunnel pond has no open channel emergency spillyway. Review of <br /> the permit shows the culvert spillway with no emergency spillway to be the <br /> approved design. However, this design is at variance to Rule 4.05.6(3)(d). <br /> In order to bring this pond into compliance, and clear up the Ten-Day Notice, <br /> Mid-Continent must submit a design for an open channel emergency spillway <br /> capable of passing the peak flow generated from a 25-year, 24-hour event for <br /> the area. This design should be submitted in the form of a minor revision by <br /> July 15, 1987. <br /> Sincerely, <br /> Candace M. Thompson <br /> Hydrologist <br /> CMT/lal <br /> 0828F <br /> 423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866-3567 <br />