Full Gospel Tabernacle Church - 18080144-01_Supplmental EZ Form

WET POND1 Drainage area number1 Total coastal wetlands area (sq ft) - Parking / driveway (sq ft)181536 sfTotal surface water area (sq ft) - Sidewalk (sq ft)20697 sfTotal drainage area (sq ft)381150 sf - Roof (sq ft)32146 sfBUA associated with existing development (sq ft) sf - Roadway (sq ft).0 sfProposed new BUA (sq ft)239580 sf - Other, please specify in the comment box below (sq ft) Percent BUA of drainage area63%Total BUA (sq ft)Design rainfall depth (in)7.9 inMinimum volume required (cu ft) 26403 cfDesign volume of SCM (cu ft)36150 cf#1 Is the SCM sized to treat the SW from all surfaces at build-out? Yes#7 If applicable, with the SCM be cleaned out after construction?Yes#2 Is the SCM located on or near contaminated soils? No#8 Does the mainetenance access comply with General MDC (8)?Yes#3 What are the side slopes of the SCM (H:V)? 3:1#9 Does the drainage easement comply with General MDC (9)?Yes#3 Does the SCM have retaining walls, gabion walls or other engineered side slopes? No#10 If the SCM is on a single family lot, does the plat comply with General MDC (10)?#4 Are the inlets, outlets, and receiving stream protected from erosion (10-year storm)? Yes#11 Is there an O&M Agreement that complies with General MDC (11)?Yes#5 Is there a a bypass for flows in excess of the design flow?Yes#12 Is there an O&M Plan that complies with General MDC (12)?Yes#6 What is the method for dewatering the SCM for maintenance?Drawdown Orifice#13 Was the SCM designed by an NC licensed professional?Yes#1 Method usedSA/DA#6 Width of the vegetated shelf (feet)6 ft#1 Surface area of the main permanent pool (square feet) 11090 sf#6 Location of vegetated shelf@ Normal Pool#1 Volume of the main permanent pool (cubic feet) 36150 cf#6 Elevation of top of shelf (fmsl)202 ft#2 Average depth of the main pool (feet) 3 ft #6 Elevation of bottom of shelf (fmsl)201 ft#2 Was the vegetated shelf included in the calculation of average depth? Yes #6 Slope of vegetated shelf (H:V)6:1#2 Elevation of the bottom of the permanent pool (fmsl) 198 ft #7 Diameter of drawdown orifice (inches)3.1 in#2 Elevation of the top of the permanent pool (fmsl) 201.5 ft #7 Drawdown time for the temporary pool (hours)52 hrs#2 Elevation of the top of the temporary pool (fmsl) 204 ft #7 Does the orifice drawdown from below the top surface of the permanent pool?Yes#3 Depth provided for sediment storage (inches) 12 in#8 Does the pond minimize impacts to the receiving channel from the 1-yr, 24-hr storm? Yes#4 Are the inlet(s) and outlet located in a manner that avoids short-circuiting?Yes #9 Are fountains proposed?No#9 If yes, is documentation provided per Wet Pond MDC (9)?#10 Is a trash rack or other device provided to protect the outlet system? No#5 Volume of the forebay (cubic feet) 5400#11 Are the dam and embankment planted in non-clumping turf grass? Yes#5 Is this 15-20% of the volume in the main pool? Yes#11 Species of turf that will be used on the dam and embankment#5 Depth of forebay at entrance (inches) 30 in#11 Describe the planting plan for the vegetated shelf:#5 Depth of forebay at exit (inches) 36 in#5 Does water flow out of the forebay in a non-erosive manner?Yes#5 Clean-out depth for forebay (inches) 12 in#5 Will the forebay be cleaned out when the depth is reduced to less than the above? YesTHE DRAINAGE AREABreak down of BUA in the drainage area (both new and existing):COMPLIANCE WITH THE APPLICABLE STORMWATER PROGRAMStormwater program(s) that apply (please specify):WET POND MDC FROM 02H .1053#4 Describe any measures, such as berms or baffles, that will be taken to improve the flow path:ADDITIONAL INFORMATIONPlease use this space to provide any additional information about this wet pond that you think is relevant to the review:GENERAL MDC FROM 02H .1050Full Gospel Tabernacle ChurchWet Pond23:12 PM 1/2/2019