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.. <br />The drop structures indicated on the map have not been installed yet, but will be done <br />• this next winter. These are an important but not essential part of the sediment control plan. The <br />main facility, which is in full operation, is the final sediment pond. <br />Spring Rain Damages: Unlike Queens Canyon Quarry, erosional damages from spring rains <br />were not as severe at this operation. Damages were only noted in one area, the cut slope above <br />the access road east of the office. Abou[ five slumps occurred on the slope. <br />One set of slumps occurred near the office and were in an area that had produced <br />problems before. Drainage into this area tends to saturate the soil. The year after the road was <br />built slumpage occurred here, but it has been stable ever since. <br />The rest of the cut slope has been stable ever since built, about 12 years ago. This year, <br />with all the excess moisture, slumpage occurred near the entrance gate. This location was <br />known to be prone to slumpage as it is at the contact between the decomposed granite outwash <br />and the Pierre Shale. The shale layer tends to create a slip zone, so slumping is not surprising. <br />Corrective actions on these slumps will be implemented when the site dries out enough <br />to do something about it. At this point the soils are still saturated and more damage would be <br />done trying to correct the slumps than would occur if it is allowed to dry out first. <br />Status of Older Revegetation: All older revegetation done at this quarry is in excellent <br />condition. Erosional damages are minimal to none. Production and cover is excellent on all <br />areas, except on some south facing slopes where it is slightly less, as would be expected. <br />Enhanced Reclamation <br />Applicabi[iry: Although Castle Concrete is only responsible for the reclamation <br />included in their permit, this quarry, like the other two, also have Enhanced Reclamation <br />Plans. These plans are publicly funded aesthetic mitigation plans that primarily involve more <br />extensive tree and shrub planting than Castle's permit calls for, and rock staining to darken the <br />sites so they are not so evident. The Enhanced Reclamation work performed in to this point is <br />described Here and a separate map in this report is provided for this operation to show where <br />Enhanced Reclamation has been implemented. Castle assumes no responsibility for the success <br />or failure of Enhanced Reclamation and is monitoring the Enhanced Reclamation to ensure that <br />no significant damages are done to the permitted reclamation. <br />Stain Testing: In the fall of 1994, testing of the stain using Permeon was done. Initial tests <br />covered about 1000 square feet with three different concentrations of stain. This allowed an <br />1995 Annual Report Pikeview Quarry M-77-211 May 27, 1995 <br />