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III. COMMENTS - COMPLrANCE <br />Below are comments on the inspection. The comments include discussion of observations made <br />during the inspection. Comments also describe any enforcement actions taken during the inspection <br />and the facts or evidence supporting the enforcement action. <br />This was a partial inspection of the McClane Canyon Mine, conducted by Dan Mathews of DMG, <br />accompanied by Chuck Silengo and Walter Whitledge of LEI. Weather was cleaz and cool. There was <br />patchy snow cover on north facing slopes in the mine vicinity, with muddy conditions throughout most of <br />the mine disturbed azea. <br />ROADS <br />Road ditches inmost azeas, including those segments that function as sediment pond collection ditches <br />were in need of maintenance due to recent precipitation and soil thaw. Silt fence ditch outlet sediment traps <br />will need to be cleaned out and silt fence will probably need to be replaced. The in-ditch sediment trap <br />above the sediment pond had been recently cleaned out and was in good condition. Upon completion of the <br />sediment pond dirt work (see below) the 36" culvertjustupgradient from the sediment pond inlet will need <br />to be removed, to restore the open ditch inlet per approved design. <br />HYDROLOGIC BALANCE <br />Upland diversions in the portal bench azea and soil stockpile azea were properly maintained and functional, <br />as were SAE sediment traps in the soil stockpile and office facility azea. <br />The sediment pond clean-out had been completed and the pond now has excess storage capacity and <br />contained no standing water. However, the sediment excavation resulted in oversteepened pond inslopes. <br />The operator is to regrade the pond as necessary to provide for 2:1 inslopes pursuant to Rule 4.05.9(7)(e), <br />while maintaining conformance with design specifications of Figure 2.2-3, and other applicable permit <br />tables, text, and appendices; including minimum 6' embankment top width, and required sediment storage <br />and water storage capacities. In addition, pond inlet ditches need to be further graded to establish uniform <br />gradient into the pond, and emergency spillway needs to beriprapped, with provision for specified flow <br />depth and free-boazd above the riprap. A functional, accessible primary spillway gate or cap needs to be <br />provided, to replace the inlet gate that proved to be impractical when the pond was filled by flood waters <br />last year. <br />An initial P.E, certification was submitted upon completion of pondcleanout, that noted the oversteepened <br />pond inslope. Additional grading work as described above is to be completed as soon as possible, with a <br />P.E. certification documenting compliance of the reconstructed pond with applicable requirements, to be <br />submitted to DMG no later than March 31, 2002. Enforcement will be taken if this work is not <br />completed by the specified deadline. , <br />TOPSOIL <br />Interim seeding and mulching of the currently non-vegetated or poorly vegetated topsoil and subsoil <br />stockpiles, and the pond cleanings stockpile material is to be completed as soon as practicable, and no <br />later than March 31, 2002. Enforcement will be taken if this work is not completed by the specified <br />deadline. <br />