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ATTACHMENT E <br />41-A -- This pond needs to have the spillway extended at least 20 <br />feet below the toe and erosion control material installed in this <br />extension. All other parameters of this pond appear to meet <br />specifications. <br />41-B -- This pond does not meet the 4 foot requirement for the <br />distance from the crest of the spillway to the top of the dam. This <br />crest needs to be lowered by at least 0.93 feet. Also, the spillway <br />needs to be extended to a distance 20 feet below the toe of the <br />dam. This spillway extension will require erosion control material. <br />The resulting spillway width after correction shall be at least 8 <br />feet wide or additional calculations will be required for the <br />spillway. The majority of the side slopes meet the 3:1 requirement <br />except for an area along the south side of the pond. This can be <br />corrected by using the material obtained when the spillway crest is <br />reduced. <br />41-C -- The crest of the spillway needs to be dropped by 1.4 feet <br />to meet the 4 foot requirement. However, once this is done the <br />bottom of the pond will be at a higher elevation than the crest. <br />Therefore, the pond should either be removed or rebuilt per the <br />permit requirements. <br />• 41-D -- The major problem with this pond is that it does not meet <br />the minimum 10 acre requirement for the tributary area. However, <br />you had mentioned that CDMG may allow this pond to be retained <br />through the submittal of a minor revision. It is assumed that if <br />the minor revision is approved, the pond will still have to meet <br />all other requirements of the permit and the two agencies listed <br />above. Therefore, the side slopes on the south side of the pond <br />will have to be reduced since there is an area where the slopes are <br />steeper than 3:1. Also, the spillway will have to be extended and <br />the spillway will have to be widened. The calculations performed <br />were for a 10 foot wide spillway. If the final spillway width is <br />less than 10 feet, additional calculations will have to be <br />performed. The material obtained from widening the spillway could <br />be used to correct the steep slopes on the south side of the pond. <br />The embankment width needs to be widened to at least 8 feet while <br />maintaining the 4 foot spillway crest to top of dam requirement. A <br />crack in the top of the embankment was also observed during the <br />inspection. The depth of the crack could not be determined at the <br />time of inspection. <br />41-F -- The crest of the spillway needs to be dropped in elevation <br />by at least 0.5 feet. The embankment width needs to be widened to <br />at least 8 feet over its entire length. While the majority of the <br />slopes of this pond are less than 3:1, there is one area on the <br />southeast side where the slopes are 2.875:1. The material obtained <br />from reducing the spillway crest elevation can be used to correct <br />• this slope. The spillway also needs to be extended 20 feet below <br />the toe of the dam and this extension will require erosion control <br />