20211021

RECEIVED
MAY 1 8 2021
All exposed slopes and peaks of the berms will have full ground cover. The pond berms will have a
minimum 1.5 feet of freeboard between the water surface and the top of the sediment pond bank.
Excavation of the main 6.23-acre pond will begin approximately 90 feet from the sediment pond and
work westward and southward. The edge of the sediment pond berm and main excavation will be 75
feet from the nearest wetland swamp. Use of the sediment pond will help forcibly hydrate the nearby
wetlands located north and west of the sediment pond and will minimize dehydration of the wetland
forest.
Sediment pond water level will be controlled by a half -pipe water height control device with a flash
board riser installed in the north edge of the sediment pond berm. This control structure will allow
water to flow across the flash boards into a 25ft long x 15' wide buried PVC pipe leading northward
through the berm 25 feet to a 6-ft wide lined discharge ditch running 195 feet northward until exiting
into the Foster Forbes Ditch blue -line stream. Overflow water will then travel westward and southward
1.12 miles through PFOl/2F (USFWS) semi -permanently flooded Palustrine wetland forest, then 0.17-
mile westward through E2EM1Pd (USFWS) partially flooded estuarine wetlands, and then 0.7-mile
westward through an unnamed tributary to Albemarle Sound.
Dewatering Procedure:
The operator will install an 8-inch diesel engine powered dewatering pump at the south end of the
sediment pond,1300 feet from the closest residence outside of the landowner's property and situated
behind sand berms or below natural ground level to reduce noise. Discharge from the dewatering pump
will flow northward 320 feet from the south end of the sediment pond to the flash board riser overflow
on the northeast end, then eastward 0.7-mile as described earlier to Currituck Sound.
Water will be pumped from the main pond to the sediment pond by the gin gasoline -powered transfer
pump operating at idle speed. Estimated maximum flow from the pump will be 20,000 gallons/hour,
operating 12 hours per day, 0.24 mgd. The operator proposes to drop the water level in the main pond
approximately 20 - 25 feet below normal ground level when needed.
Time and distance will allow all sedimentation to occur to acceptable levels before the overflow water
reaches outfall and then the waters of the State. Water will have to travel a minimum of 270 feet to
reach the overflow point which will give enough surface area to allow sufficient sedimentation to occur.
Stormwater drainage will be unable to enter the sediment area and damage the sediment pond rates,
due to the height of the surrounding sediment pond berm.
Wetlands Protection:
To minimize wetland impacts, the operator will construct a 1200-foot long by 10-ft wide hydration swale
between the west side of the proposed excavation and the adjacent wetlands 75 feet westward. The
ditch will run along the westward edge of the 25-ft wide unexcavated buffer between the perimeter
berm and the 50-ft wide undisturbed buffer boundary. The ditch will be kept artificially full by having
water pumped into It from the excavated pond on a constant basis. Water will be allowed to overflow
along its length and spread in a sheet flow across the foliated undisturbed buffer into the adjacent