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,~ , I i ~,Ss ~Un~ 1 CCk~nMNY J SNOWMASS COAL COMPANY Mine Olhce. P.O. Box 960 Carbondale, Coio ratio 81623 (303) 963~34a0 Denver O/li[e: April 12, 1983 Suile 2300 410 Seventeenth Street Denver, Colorado 80202 (303) B26~ 1966 Mr. Jim Goodyear 0323 Elk Rnage Drive Carbondale, CO 81623 Dear Mr. Goodyear: 'Enclosed you will find a map made from the U.S.G.S. Stony Ridge 1; min. Quad map. This map shows the location of the 4 proposed weirs that Snowmass Coal Company wishes to install. The purpose of these weirs is to accurately mea- sure the quantity of water passing over our mine site. Snowmass Coal Company proposes to install rectangular weirs with end contrac- tions. The rectangular notch will be 7 feet wide and 2 feet deep. The bot- tom of the notch will be 4.3 feet above the bottom of the creek beds. The length of the weir will depend on the actual width of the creeks. Measure- ments have shown that these weirs will range from 28 feet to 35 feet in length depending on the location. The weirs will be formed out of concrete and measure one-half foot thick. In discussing this proposal with the Army Corps of Engineers, it was determined that a 404 permit was needed to construct the weirs. The Corps requested that we contact the Division of Wildlife and see if some sort of fish ladder will be required for these weirs. In talking with you, and Mr. Sidel, it is apparent that some sort of device will be required. I would appreciate it if you could send any information regarding the design of fish ladders so that I may incorporate them into the weir design. Once the weir design has been finalized, I will send a copy of the final drawings to you for your inspection before the 404 application is sent to the Army Corps of Engineers. nt