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COLORADO DEPARTMENT OF HEALTH <br />• Water Quality Control Division <br />4210 East 11th Avenue <br />Denver, Colorado 80220 <br />RATIONALE <br />AMENDMENT X12 <br />BLUE RIBBON COAL COh;PANY <br />BLUE RIBBON MINE <br />PERMIT NUMBER CO-0033553 <br />DELTA COUNTY <br />The office phone number for Blue Ribbon Coal Company has now been changed to <br />(303)+464-7951. In a letter dated June 25, 1986, Larry Reschke of Hlue Ribbon <br />Coal Company requested that two modifications be made to their existing permit. <br />• The old location of Discharge Point 001 (from former Pond No. 1) has been <br />changed to a new location from Pond No.S, which is just east of former Pond <br />1. Pond No. 5 has a design capacity of 0.421 acre-feet with a design maximum <br />discharge of 1.4 cfs at the 10-year, 24-hour event. She change to Pond No. 5, <br />according to Blue Ribbon Coal Company, will eliminate inflow from springs <br />which went into the former Pond lvo. 1. <br />The second change is that Discharge 004 from the mine will be eliminated. The <br />last date of discharge from 004 was November 19, 1985. Blue Ribbon Coal <br />Company has decided to close the nine. The mine has been sealed and <br />reclamation is scheduled for summer 1966. No discharge is now authorized from <br />004. Thus, the discharges only involve surface runoff; the fee category for <br />this will be changed to category 2, subcategory 1. <br />Both changes are indicated in the amended figure 7 on page if and in the <br />amended page ld and deleted page lc of the permit. <br />• Don Holmer. <br />July 7, 1986 <br />