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• material. A crack in the top of the dam was observed during the <br />inspection. The depth of the crack could not be determined at the <br />time of inspection. <br />41-G -- The elevation of the spillway crest needs to be reduced by <br />at least 0.23 feet in order to meet the 4 foot requirement. Also <br />the spillway needs to be extended 20 feet below the toe of the dam <br />and this extension will require erosion control material. All <br />slopes of this pond appear to meet the specified requirements. A <br />crack in the top of the dam was observed during the inspection but <br />the depth of the crack could not be determined. <br />41-H -- The elevation of the spillway crest needs to be reduced by <br />at least 1.4 feet. This will then correct the lack of residual <br />freeboard at peak flow that currently exists (2' minimum <br />requirement.). The spillway needs to be extended 20 feet below the <br />toe of the dam and this extension will require erosion control <br />material. All slopes of this pond appear to meet the specified <br />requirements. <br />OSP-A -- This pond was actually built in Area 31 and is now <br />designated as 31-I. This pond was still holding water at the time <br />of inspection. <br />OSP-B -- The spillway crest elevation of this pond needs to be <br />reduced by at least 2.53 feet. This will result in a maximum pond <br />• depth of 1.45 feet. The spillway modification will also correct the <br />inadequate residual freeboard at peak flow that currently exists. <br />The spillway needs to be extended 20 feet below the toe of the dam <br />and this extension will require erosion control material. All <br />slopes of this pond appear to meet the specified requirements. <br />Several cracks were observed in the embankment at the time of the <br />inspection. The depth of these cracks could not be determined. <br />OSP-C -- This pond will drain out of the back of the pond before it <br />drains out of the spillway. However, you have informed me that this <br />pond was a pre-existing pond and CYCC was not responsible for the <br />installation of this pond. Therefore, it is my understanding that <br />CYCC is not responsible for removing or repairing this pond. <br />31-A -- The spillway crest elevation needs to be reduced by 1.54 <br />feet. The spillway also needs to be extended 20 feet below the toe <br />of the dam and erosion control material will be required in this <br />extension. The majority of the slopes meet the 3:1 requirement <br />except for one area on the southeast side of the pond which <br />measures 2.57:1. The material obtained from reducing the spillway <br />crest elevation should be used to correct this slope. Reducing the <br />spillway crest elevation will also correct the inadequate residual <br />freeboard at peak flow that currently exists. A crack in the top of <br />the dam was also observed during the inspection. The depth of the <br />crack could not be determined at the time of inspection. <br />. 31-B -- The spillway crest elevation needs to be reduced by 1.74 <br />feet. The spillway also needs to be extended 20 feet below the toe <br />