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~I~.g <br />I~~n.~ <br />~ blue ~~~ ~~~~~~~~~~~~~~~~ ~~o;,~ <br />S ~ ribbon ~~~~ ~~~~~~~ u~ai company <br />Goal P.o. box 1352 <br />palisade, Colorado 81526 <br />company (303) 464-7951 <br />June 9, 1987 ~~-c~~~®Ng1 <br />JUhd 111987 <br />AhiNEG LArvu <br />t~lECLAMATION DIVISION <br />Susan J. Mowry <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street, Room 423 <br />Denver, CO 80203-2273 <br />Re: Regraded Bench Contours, File C-047-81 <br />Dear Susan: <br />Work was completed June 3, 1987 on regrading the top of the mine <br />bench. The attached diagram was prepared from a stadia survey taken <br />upon completion of the work. The slopes draining into the channel <br />and over the face of the bench were over the 5% requested. The channel <br />generally showed variations from 1.6% to 2.2% slopes with a short <br />3.2% slope on the north end. The overall average slope on the channel <br />was 2.1%. The bottom of the channel is a flat area 7 feet wide and <br />banks of the channel are the adjacent slopes, 12 - 20%, rather than <br />the 2v:lh designs. <br />Re vegetation work on the bench will be done this fall. The final <br />reclamation shrub seed mix will be broadcast seeded and approximately <br />1 ton of straw mulch per acre will be distributed on the 0.8 acres. <br />Due to the shallow slopes and location, netting will not be done. <br />Let me know if you have any further questions. <br />Sincerely, <br />Larr~ M. Reschke, P.E. <br />Protect Engineer <br />LMR:jp <br />Enclosure <br />