_INSPECTION - C1994082 (41) - Laserfiche WebLink

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III. COMMENTS-COMPLIANCE Below are comments on the inspection. The comments include discussion of observations made during the inspection. Comments also describe any enforcement actions taken during the inspection and the facts or evidence supporting the enforcement action. i comparable to adjacent undisturbed slopes and grade depicted on PMT map Exhibit 20-2. The only maintenance item remaining was that holes in the TRM liner were still evident in a couple locations along the upper TRM segment(Photo#631 and#632). TRM maintenance is warranted to prevent further scour beneath the liner. YPM 6-2 Drainage Downstream of the undisturbed aspen grove, the main valley drainage re-enters land disturbed by minjng activity. The channel is designated YPM 6-2. The steep tributary YPM-7 enters the upper end of YPM 6 from the northeast at the disturbance boundary. YPM-7 was included in the SL- release request area, but it had been severely eroded by spring runoff in 2009. Rough grading had been completed along YPM-7,but channel shaping and liner installation had not been completed(Photo #531 is the lower segment of YPM-7). Downstream of YPM-7, Chanel shaping has not been completed and liner has not been installed (see Photo#640 from 8/12/09 inspection). SCC had excluded a narrow corridor along the YPM 6-2 channel extending down to the large"Pond 12 slide" exclusion area. The e is a temporary maintenance road that extends from the Section 17/20 boundary near the no; end of the YPM-7 drainage, crosses over to the north side of YPM-7 north of the aspen g e, and then continues to the west through the lower south facing slopes of the YPM 6-2 dramage, into the "Pond 12 slide" area. A section of the maintenance road in the YPM 6-2 watershed is shown in Photo #641. The maintenance road alignment was excluded from the SL- 2 re ease request by SCC,but slopes adjacent to the road were included. There are rilled road run-out channels in locations between the road and YPM 6-2 that require maintenance (Photo #64 ). There is a scraper road that extends across the south facing slope north of the maii itenance road, diverging from the maintenance road a couple hundred feet west of the YPM- 7 crossing, and extending up to Topsoil Stockpile"L" on the ridge northeast of Pond 012. The scraer road was included by SCC in the SL-2 release request area. The scraper road will continue to be used for at least the next year, during final remediation of the Pond 012 slide area, and upon completion of that project the route will need to be graded to tie into the adjacent terr�m and prevent concentration of runoff, then will need to be topsoiled and seeded. The scraper road and various features in the general vicinity are depicted on Photo#0137, a DRMS aerial photo taken 8/28/09. The Division believes it would be appropriate to exclude a larger, contiguous block of land in the YPM-7 and upper YPM 6-2 watersheds, due to the extent of on- goi g activity associated with scraper and other equipment access to the Pond 012 slide vicinity and Topsoil Pile"L", as well as on-going and future reclamation and stabilization work ass crated with the maintenance road, the scraper route, lower Channel YPM-7, and Channel 10