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<br />TR9PPER DINING <br />Certified <br />• ~~I ~~~I~~~~~~~~~~~~ <br />999 <br />1VE~ <br />July 8, 1991 JUL 1 2 1991 <br />Mined i_and <br />Reclamation piviSion <br />Mr. Kent Gorham <br />Colorado Mined Land Reclamation Division <br />215 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br />Subject: Trapper Mine Second Quarter (1991) Sediment Pond Inspection Report <br />Dear Kent: <br />Trapper's Second Quarter sediment pond inspection report (1991) is attached. All <br />spring/early summer storm runoff has passed without an incident. All dams including dam <br />#9 in Johnson Gulch have functioned as designed. The minor structural repairs <br />accomplished at Johnson Gulch Dam #9 during April have performed exceptionally. <br />Trapper's intent is to complete permanent spillway redesign during 1991. <br />All other dams with the principal spillway culvert design (Johnson #10, No Name #2 and <br />No Name #4) are functioning properly and show no evidence of piping. We closely <br />monitored those dams during this period. There are no other structural or erosional <br />problems to report. <br />Please call if you have any questions or concerns. <br />Attachment <br />WA/Ikw/026 <br />pc: J. M. Mattern <br />W. S. Harding w/o encl. <br />B. D. Nicholson w/o encl. <br />file <br />Sincerely, <br />~~~~ <br />William Agnew <br />Sr. Environmental Engineer <br />f <br />P.O. Box 187 Craig, Colorado 81626 (303) 824-4401 <br />