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Home My WebLink About20120779 Ver 1_Staff Comments_20120924Lucas, Annette From: Lucas, Annette Sent: Monday, September 24, 2012 1 35 PM To: Witherspoon, Lauren Cc: Lucas, Annette Subject: 12 -0779 55 James at Midtown Attachments: 12 -0779 55 James at Midtown docx LC, Here are the updated bullets. Thanks, Annette 12 -0779 55 James at Midtown AML comments September 24, 2012 Many required items listed in the Level Spreader- Vegetated Filter Supplement Form were omitted. In your resubmittal, please include ALL of the required items (with all listed elements and at the specified scales). Failure to do so will result in a return of application. In particular, please be sure to include one foot topo lines between the level lip and top of stream bank. 2. The level spreader should not be located upslope of the future Apex Peakway R/W. Instead, it should be located upslope of a stream or other water. Because the riparian buffer appears to be steep, it may be necessary to provide a 30 -foot wide engineered filter strip (please see Chapter 8 of the BMP Manual for design requirements). 3. Please provide the supporting calculations for the flows from the wet detention pond. The level spreader must be correctly sized for the flows that it will receive. It may be designed for the maximum drawdown flow from the wet detention pond if the outlet device bypasses larger storm flows to another location. 4. Please provide a full -size plan sheet showing the entire site with its storm drainage system, including every inlet, outlet and conveyance device. Please show how diffuse flow requirements have been met at every proposed outlet location. 5. Please provide documentation of the Town of Apex's approval of the stormwater management plan for this project by providing EITHER: • A valid approval letter from the Town of Apex indicating that the proposed activity has an approved SMP and one copy of the approved SMP, including full -sized plan details, calculations and other supporting information, OR • A set of stormwater plan details and calculations stamped as "Approved" by the Town of Apex.