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Home My WebLink AboutSW6230401_Supplement-EZ Form_20230612 WET POND 1Drainage area number1 2Minimum required treatment volume (cu ft)2326 cf GENERAL MDC FROM 02H .1050 3Is the SCM sized to treat the SW from all surfaces at build-out?Yes 4Is the SCM located away from contaminated soils?Yes 5What are the side slopes of the SCM (H:V)?3:1 Does the SCM have retaining walls, gabion walls or other 6Yes engineered side slopes? Are the inlets, outlets, and receiving stream protected from erosion 7Yes (10-year storm)? Is there an overflow or bypass for inflow volume in excess of the 8Yes design volume? 9What is the method for dewatering the SCM for maintenance?Pump (preferred) 10If applicable, will the SCM be cleaned out after construction?Yes 11Does the maintenance access comply with General MDC (8)?Yes 12Does the drainage easement comply with General MDC (9)?Yes If the SCM is on a single family lot, does (will?) the plat comply with 13N/A General MDC (10)? 14Is there an O&M Agreement that complies with General MDC (11)?Yes 15Is there an O&M Plan that complies with General MDC (12)?Yes 16Does the SCM follow the device specific MDC?Yes 17Was the SCM designed by an NC licensed professional?Yes WET POND MDC FROM 02H .1053 18Sizing method usedSA/DA 19Has a stage/storage table been provided in the calculations?Yes Elevation of the excavated main pool depth (bottom of sediment 20363.50 removal) (fmsl) 21Elevation of the main pool bottom (top of sediment removal) (fmsl)364.50 22Elevation of the bottom of the vegetated shelf (fmsl)370.50 23Elevation of the permanent pool (fmsl)370.50 24Elevation of the top of the vegetated shelf (fmsl)371.50 25Elevation of the temporary pool (fmsl)371.50 26Surface area of the main permanent pool (square feet)2038 27Volume of the main permanent pool (cubic feet)6128 cf 28Average depth of the main pool (feet)3.01 ft 29Average depth equation usedEquation 2 30 If using equation 3, main pool perimeter (feet) 31 If using equation 3, width of submerged veg. shelf (feet) 32Volume of the forebay (cubic feet)1151 cf 33Is this 15-20% of the volume in the main pool?Yes 34Clean-out depth for forebay (inches)30 in 35Design volume of SCM (cu ft)3511 cf 36Is the outlet an orifice or a weir?Orifice 37 If orifice, orifice diameter (inches)3/4" 38 If weir, weir height (inches) 39 If weir, weir length (inches) 40Drawdown time for the temporary pool (days)3.27 Are the inlet(s) and outlet located in a manner that avoids short- 41Yes circuiting? 42Are berms or baffles provided to improve the flow path?No 43Depth of forebay at entrance (inches)54 in 44Depth of forebay at exit (inches)42 in 45Does water flow out of the forebay in a non-erosive manner?Yes 46Width of the vegetated shelf (feet)6 ft 47Slope of vegetated shelf (H:V)6:1 Does the orifice drawdown from below the top surface of the 48Yes permanent pool? Does the pond minimize impacts to the receiving channel from the 1- 49Yes yr, 24-hr storm? Are fountains proposed? (If Y, please provide documentation that 50No MDC(9) is met.) 51Is a trash rack or other device provided to protect the outlet system?Yes 52Are the dam and embankment planted in non-clumping turf grass?Yes 53Species of turf that will be used on the dam and embankmentCentipede 54Has a planting plan been provided for the vegetated shelf?Yes ADDITIONAL INFORMATION Please use this space to provide any additional information about 55 the wet pond(s): Wet Pond19:06 AM 5/22/2023