Kewaunee Scientific - 11- SSW-SuppEZ-20170329-DEMLR-SW

QuantityInfiltration SystemBioretention CellWet Pond 1Stormwater WetlandPermeable PavementSand FilterRainwater HarvestingGreen RoofLevel Spreader-Filter StripDisconnected Impervious SurfaceTreatment SwaleDry PondApplicant:Name and Title:Organization:Street address:City, State, Zip:Phone number(s):Email:DesignerCertification Statement:Signature of DesignerDatePlease indicate the types, quantities and locations of SCMs that will be used on this project:[e-mail] number(s):P. Scott Bell, PEG.L. Wilson Building Co., Inc.190 Wilson Park RdStatesville, NC 28625704-872-2411 ext [e-mail] SCM 1 (2340 W Front Street, Statesville, NC)SUPPLEMENT-EZ FORM COVER PAGESealviolations as well as a report being made to my professional board. - that the information provided in the form is, to the best of my knowledge - that the engineering plans, specifications, operation and maintenancethe information provided here.I am aware that there are significant penalties for submitting falseinformation including the possibility of fines and imprisonment for knowing and belief, true, accurate, and complete; andagreements and other supporting information are consistent with I certify, under penalty of law: that this Supplement-EZ form and all supportinginformation were prepared under my direction or supervision; Designer information for this project:Location(s)Project Name:AddressCity / TownG.L. Wilson Building Co., Inc.P. Scott Bell, PEA PROPOSED EXPANSION FOR KEWAUNEE SCIENTIFICStatesville2340 W Front StreetEmail:190 Wilson Park RdStatesville, NC 28625704-872-2411 ext 252Company:Contact:Mailing Address:City, State, Zip:Cover Page12:58 PM 11/6/201811/5/2018
WET POND1 Drainage area numberscm 1 Total coastal wetlands area (sq ft) sf - Parking / driveway (sq ft)106453 sfTotal surface water area (sq ft) sf - Sidewalk (sq ft)5123 sfTotal drainage area (sq ft)435164 sf - Roof (sq ft)150840 sfBUA associated with existing development (sq ft)203541 sf - Roadway (sq ft)Proposed new BUA (sq ft)58875 sf - Other, please specify in the comment box below (sq ft) Percent BUA of drainage area60%Total BUA (sq ft)262416 sfDesign rainfall depth (in)1.0 inMinimum volume required (cu ft)24027 cfDesign volume of SCM (cu ft)29450 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)10 ft#1 Surface area of the main permanent pool (square feet)9817 sf#6 Location of vegetated shelf@ Normal Pool#1 Volume of the main permanent pool (cubic feet)29451 cf#6 Elevation of top of shelf (fmsl)952 ft#2 Average depth of the main pool (feet)3 ft #6 Elevation of bottom of shelf (fmsl)951 ft#2 Was the vegetated shelf included in the calculation of average depth? No #6 Slope of vegetated shelf (H:V):1#2 Elevation of the bottom of the permanent pool (fmsl)946 ft #7 Diameter of drawdown orifice (inches)2.0 in#2 Elevation of the top of the permanent pool (fmsl)952 ft #7 Drawdown time for the temporary pool (hours)70 hrs#2 Elevation of the top of the temporary pool (fmsl)955 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? Yes#5 Volume of the forebay (cubic feet)4562#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 embankmentfescue#5 Depth of forebay at entrance (inches)48 in#11 Describe the planting plan for the vegetated shelf:#5 Depth of forebay at exit (inches)42 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):Storm EZ form and this supplemental form do not allow correct input of existing BUA IF portions of that existing BUA are to be converted from existing sidewalk to proposed building.WET POND MDC FROM 02H .1053#4 Describe any measures, such as berms or baffles, that will be taken to improve the flow path:n/asee landscape plan.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 .1050A PROPOSED EXPANSION FOR KEWAUNEE SCIENTIFICWet Pond22:58 PM 11/6/2018