_INSPECTION - C1994082 (66) - 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. Pond 11 discharge was also somewhat discolored and a sample was obtained and split with the operator. Settleable Solids was analyzed by Grand Junction Laboratories on 4/24/09, and the reported value was 0.1 ml/I, which is below the CDPS permit standard of 0.5 ml/I. As with Pond 12, there was heavy flow of sediment laden snowmelt runoff into the pond at the time the sample was taken. Inflow was discharging over the top of the spillway riser. Ponds 13 and 14 were both discharging over the top of their spillway risers due to snowmelt inflow, but in both cases the discharge was relatively clear. Backfilling and Grading; Slides & Damage Due to remnant snow cover in some areas and limited accessibility due to snow and mud, detailed observations were precluded in most areas. The large Pond 12 slope failure that occurred last spring has not yet been remediated, due to on-going monitoring being conducted to allow for development of an effective remediation plan. The main body of the slide appears much as it did last spring. However, there appears to have been additional movement along the west end of the slide immediately north of Pond 12. Where there were only cracks last year, there is now a settling scarp several feet high,just upslope from a temporary road north of Pond 12 that was constructed to allow access for monitoring and remediation. A report and remediation plan for the slide is to be submitted later this year. Given the relatively large acreage of recent steep slope reclamation, it is anticipated that a considerable amount of rill and gully repair work will be warranted this field season (both permanent channel and hillslope areas). In- slopes of new Pond 12A were heavily rilled in a few locations, and minor settling cracks were evident on the steep slope west of Pond 12A. The operator is responsible for conducting site inspection and identifying rill and gully and slide features that require repair in the annual Rill and Gully Inspection Map, as soon as practicable following the end of snowmelt runoff. The Division will assess these topics more thoroughly in a subsequent inspection, when site conditions allow for better access and visibility. Topsoil & Revegetation Due to snow cover, limited access, and season, these topics could not be closely evaluated at this time. 5