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i-iil~~-~~IIIIIIIII <br />• • <br />STATE OF COLORADO <br />MINED LAND RECLAMATION DIVISION <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />303 666-3567 <br />Fn x: 303 832-Bt06 - <br />J anuary 24, 1991 <br />Mr. Bill Agnew <br />Trapper Mining, Inc. <br />P.O. Box 187 <br />Craig, Colorado 81626 <br />OF COrO <br />/.~'~~9QQ <br />. ~ ,o <br />r + <br />• re l6 ~ <br />Roy Romer. <br />Governor <br />Fretl R. Banta. <br />Division Director <br />RE: Updated Culvert Inventory -Technical Revision 50 -Trapper Mine - <br />C-81-010 <br />Dear Mr. Agnew: <br />On December 20, 1990, we received the above-referenced technical revision <br />application. A final decision will be made no later than February 18, 1991. <br />Please respond to the following comments prior to that date. <br />1) Please revise Page 4-173, to eliminate the last paragraph. All <br />culvert installations, made in conjunction with mining activities, <br />must be approved prior to installation. <br />2) Your assistance in locating culverts PY-1 and DUC-1 on the maps <br />would be appreciated. I have probably simply overlooked them; <br />however, if they are not shown, please add them to revised maps. <br />3) The previously approved wording in the second paragraph (Page <br />4-173) indicates that the projected 10 year, 24 hour precipitation <br />event will not produce runoff. This seems a bit suspect. Please <br />explain the statement. <br />Please call with any questions, and thank you for a very thorough submittal. <br />Si ncerel <br />~serry <br />ion Specialist <br />DAB/yjb <br />CC: Jim Stevens <br />2999E <br />