_INSPECTION - C1982057 (33) - Laserfiche WebLink

Home Browse Search

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. installation is warranted along the road ditch segment, and along the lower segment of the reclaimed stockpile access which is also rilled. Further to the east, a segment of 005 Gulch downstream of the reclaimed"D" Pit area runs roughly parallel and in close proximity to the road between Stock Pond T-20 and Culvert G-5. The channel segment was not included in the SL-2 release request area,but is immediately adjacent to the boundary of the release request, and was walked during the inspection. The drainage channel along this segment conveys runoff from the "D" Pit area down to Sedimentation Pond 005. The channel segment is designated as a"minimal disturbance area" within the approved permit(see permit Exhibit 12-2). Due to channel incision and bank sloughage along the channel, the operator has performed stabilization grading and riprap installation along much of the reach(see Photos SL2-6, and SL2-8). Although the reasons for erosion along the channel are not known with certainty, a significant portion of the watershed was mined and reclaimed, and thus the operator has undertaken measures to stabilize the reach. One location was noted during the inspection where additional grading and riprap installation is warranted to stabilize an active headcut. The headcut is located at the location where a pasture fenceline crosses the drainage, upstream of Stock Pond T-22 (see Photo SL2-9). Review of photos taken in recent years at the same location show that the channel incision in this location has deepened and progressed several feet upstream. The Ridgeline Access Road is a continuation of the primary landowner access route, with its start point at the lower end of the "D" Pit reclaimed area, near the north boundary of Section 15. A typical section of the road through the reclaimed "C" Pit area in the northern portion of the original permit area is shown in Photo SL2-13. The road generally appeared to be in good condition and to conform to approved criteria. Scoured ditch segments were noted along the road in the vicinity of the PM-4 culvert location; maintenance such as rock checks or TRM liner installation is warranted. A recently regraded gully was observed in the"D"Pit reclaimed area, south of Channel 005-E1, that originated from a road ditch outlet along the segment between Culvert PM-3 and the fenced shrub plot in the upper 005-El watershed (Photo SL2-11). The gully had been regraded as a shallow "V" shaped tributary channel,but had apparently not yet been seeded. Stabilization seeding of the repaired gully channel will be necessary, and installation of appropriate TRM matting appears to be warranted due to the flow concentration. The southern terminus of the Ridgeline Access Road is at a major intersection,where proposed permanent Road "J" takes off to the south (to the South Extension Area), and the reclaimed 6