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•~~ f III III III IIIIIII III <br />- Y ~~~ ~~1 <br />~ockq tYlountain . - . - .. <br />~uroe~or~ - r : - :. <br />~ '~ ~ :.~ <br />P.O. Box 275, Oak Creek, CO 80467 (30.3) 736-8563 <br />October 12, 1984 <br />Mr. Bob Sherman <br />Ryan Corporation <br />P. O. Box 773987 ' <br />Steamboat Springs, CO 80477 <br />Re: Haulroad Slopes 6 Sedimentation Pond S~-~~-J ~ / <br />Dear Bob, <br />~~` <br />~~~~ <br />On October 4, we measured the existing slopes, both cut and fill, <br />of the haulroads in the Grassy Creek Mine. At no place were the <br />fill slopes steeper than 1-1/2:1. In fact the majority were at 2:1 <br />or flatter. The cut slopes were separated into two categories: <br />consolidated and unconsolidated material. <br />Starting at County Road 33, measurements were taken on both sides <br />of the haulroad with the distance from the county road recorded. <br />The following tables show the mileage from the beginning, the type <br />of cut slope material and the mileage at each measured slope. <br />Table 1 shows the main haulroad to Pit 4. Table 2 shows the access <br />road from the main haulroad to Pits 1 b 6. Table 3 shows the road <br />to Pits 2 6 3 from the Pit 1 access road. <br />Also enclosed are the x-sections of the sedimentation ponds in Pits <br />2 6 3. Should you need any further information on these or the <br />haulroad slopes, please let me know. <br />Sincerely, <br />~~ ~~ <br />Ken Rossi <br />/bjb <br />