Laserfiche WebLink
SEDCAD 4 for Windows <br />r..,..a+. .ov o.w. ~ c..~.w <br />• _ Pond 11 <br />Storm: 1.8", 25 year - 24 hour <br />SuGwatershed Hydrology Detail: <br />SuGwatersl~ed Sedimentology Detail: <br /> <br />Sediment pond 11 was designed to initially contain the run-off from Cameo <br />Borrow Area No. 2 (CBA-2) and later contain run-off from Cameo Refuse <br />Disposal No. 3 (CRDA-3). CRDA-3 will not be constructed. Therefore, sediment <br />pond sizing is only for run off and sediment from CBA-2. The size of sediment <br />pond 11 was increased substantially by borrow operations from CBA-2 during <br />2002. Post 2002 contours of pond 11 are shown on Exhibit 55. <br />Rule 4.05.9(2)(e) allows the DMG to approve a temporary impoundment that <br />relies primarily on storage to control run-off from the design event specified in <br />4.05.9(2)(c). As shown on Exhibit 55, pond 11 has adequate capacity to contain <br />the 25 year 24 hour precipitation event and associated sediment with substantial <br />freeboard. Therefore, an emergency spillway is not required at pond 11. <br />• <br />Fun(.] i i -1'J : `+_u <br />