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1 inundation area would be failed to provide a~l4 to 3% cross-slope into the channel with an overall 89i to 5% resultant channel slope. Natural siltation would occur in this pilot channel area. Atypical configuration is illustrated on the area 1 detail included with this submittal. Regarding the toe of Areas 3 and 4, a field inspection was made to determine if any impact to the actual stream thread had occurred during the disturbances. It was found in the case of Areas 2, 3 and 4 that none of the fill had reached the stream thread. The lowest field stations shown on the CAP were originally presented as limits of disturbance. They were actually field locations oP the stream thread obtained. to confirm the accuracy of the topographic base map being used for .the C'AP..,- In the case of Area 4, there were S to ]0 large boulders observed at and near the stream thread that were apparently the result of dumpini; of material at the Area 4 roadway Pill as directed by the then Cedar Heights developer. The boulders in no way impede the natural stream flow. .4ny attempt to remove them would result in significant disturbance to not:ive vegetation and trees. The Operator has ¢onflrmed no channelization is required within the Snyder Tributary except in the inundation area and commits to that work as indicated in this Response. ITEM NO. 14 & 15 RESPONSE: The Operator commits to design and construction of a silt retention facility in accordance with the writer Quality section found on Pages 12 and 13 oP the CAP. The design will be based on an accurately surveyed or mapped watershed. The facility will be. .. adequately sized to operate in a 10 year 24 hour storm event. Emergency spillway configuration will accommodate a 100 year storm event. The location and size oP the facility will be designed to accommodate the required silt retention geometry, realigned Access Road, inflow from the Quarry along the Visual Berm and construction of a silt retent:lon access road for maintenance purposes. All design plans, details, and support data will be submitted to the MLRD in a format to expedite review and comments within 60 days of anticipated construction. The Operator commits to having the facility in place and operational prior to the Spring rain season. B. SLOPE STABILITY ITEM NO. 16 RESPONSE: The Operator commits to reshaping the Area 1 slope as shown on the referenced section. The base area below Sta. 3+x;6.6 is shown at approximately 8:1. The slope above this station will be shaped to 2:1 maximum as shown. The section has been revised to clarify the Operator's commitment in Area 1. ITEM NO. 17 RESPONSE: The Operator has proposed the approach as presented for several reasons which follow: