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Rule 4.05.2 states that sedimentation ponds and other treatment facilities for surface <br />drainage from the disturbed area shall be maintained until removal is authorized by <br />the Division and the disturbed area has been revegetated and stabilized, the <br />untreated drainage from the disturbed area ceases to contribute additional suspended <br />solids above natural conditions, and the quality of untreated drainage from the <br />disturbed area meets the State and Federal water quality standard requirements <br />applicable after the sedimentation ponds and treatment facilities are removed, if any, <br />for receiving streams. <br />The two sediment ponds (Ponds 1 & 2) subject to removal at this time (2009) are <br />located within the rail loop. The essentially flat area within the rail loop causes <br />precipitation to infiltrate rather than run-off. There has never been a discharge of <br />water from either of the sediment ponds. There are very seldom puddles or pools of <br />water in either of the sediment ponds. <br />The disturbed area will not contribute additional suspended solids above natural <br />conditions, and the quality of untreated drainage from the disturbed area will meet the <br />State and Federal water quality standard requirements applicable after the <br />sedimentation ponds and treatment facilities are removed because there is virtually no <br />run-off from the disturbed area. Additionally, all run-off from the disturbed area is <br />contained within the rail loop so it will not contribute suspended solids above natural <br />conditions. Therefore, a sediment loss demonstration should not be required. <br />The Corps of Engineers jurisdictional determination is located in Appendix 15-2. <br />Jurisdictional wetlands are also shown on Exhibits 10C and 11 C. The Applicant will <br />not impact the wetlands so a Corps of Engineers 404 permit is not required. <br />The large wetland adjacent to sediment pond #2 dictates the revisions to the <br />reclamation plan. The wetland restricts reclamation of sediment pond #2 to the west. <br />Since the wetland is the low point in the area, run-off from the reclaimed ponds will <br />need to be directed to the wetland. A drainage swale collects run-off from the <br />reclaimed ponds and directs that run-off to the large wetland. <br />Reclamation of sediment pond #1 will involve placing fill nearly level with light use <br />road number 4. The fill will then be sloped to drain to the drainage swale. <br />Reclamation of sediment pond #2 will also involve placing fill nearly level with light use <br />road number 4. The fill to the north will be sloped to the drainage swale. The fill to the <br />west will be sloped towards the wetland. No fill will be placed in the wetland. <br />The drainage swale is relatively deep, ranging from 1-foot deep on the north end to <br />three to four feet deep as it enters the wetland. It will be constructed in the <br />approximate location of the channel that connects ponds 1 and 2. The disturbance <br />associated with the reclamation of ponds #1 and #2 and the drainage swale will be <br />seeded and mulched. The seed mixture will be the lowland component listed in Table <br />14-8. The slope gradient of the swale is approximately 0.55%. This flat gradient and <br />associated slow velocity combined with revegetation will cause water to infiltrate and <br />solids to settle thus virtually eliminating the discharge of water or sediment into the <br />large wetland. <br />TR-59 14-9i (Rev. 08/09)