2011-08-08_INSPECTION - M1976009HR

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within 20 to 30 feet of the affected land boundary. The road is, on the average, about 90 feet from the affected land boundary. The second page of photos shows the stitched assembly of the aerial photos used to prepare a new topographic map. This photo was taken in 2004. The top photo shows the entire quarry with the approximate location of the permit and affected land boundaries overlain on the photo as well as the location of the spill. The second photo shows the spill area in greater detail along with more precise locating of the boundaries. These photos are the best available images of the condition of the site prior to the lowering of the "northeast knob." As can be seen, the slope where the spill occurred was a sparsely vegetated scree slope. Unfortunately, the time of the aerial photo and its resolution is not sufficient to show any detail about the amount of rock originally in the stream channel. Recollection though is that it was very rocky. This would be consistent with its location at the toe of the steep scree slope. A Google satellite image taken in April 2005 showed similar characteristics, but with even less detail than the 2004 aerial. Thus it appears to be certain that the stream channel where the spill occurred contained a good deal of rock even before the spill. However, the additional rock would have definitely been too much for Turkey Creek to handle and there was some risk that the spill might actually act as a porous dam in the stream that could produce some minor pooling upstream that could alter the local growth environment of the streamside vegetation. Fortunately, due to severe drought, no stream flow occurred after the spill or during the corrective work. Therefore, impacts on water quality or quantity did not occur. During the inspection by the Division on June 15, 2011, there was quite a bit of discussion as to how much rock needed to be removed. Clearly, what had been spilled needed to be removed, but it became difficult to determine what was a natural fallen rock and what was a spill rock. So trying to limit the removal to just the spill rock was almost. In fact, during the rock removal an attempt was made to determine, based on rock color, what rock was pre -spill and what was not. It became impossible to separate one from the other. Therefore the approach taken was to simply rehabilitate the entire stream channel without regard to which rock was pre -spill and which was not. It is likely that a bit more rock was removed than was originally there, but it was already known that the stream flowed mostly beneath a veneer of large rock at this location and that was generating some problems with bank erosion on the west side of Turkey Creek that was slowly undermining the scree slope. Thus limiting this stream shifting, which could translate both up and down stream from this location, seemed prudent. Therefore, the original channel was re- established but configured to allow it to be a bit more free flowing than it was in 2004 and before. That was done by generally leaving only rocks about 12" to 18" or smaller in the stream bed and removing anything larger. Last it is important to note that Turkey Creek has not carried any water in quite some time. In fact, it was basically dry all winter in 2010/2011 and as of this writing still has not produced one Corrective Action Completion Report Menzel Quarry M- 1976 - 009 -HR 08/08/2011 Page 2 of 6