20210125 - ADI Response Cover

THE CULLIPHER GROUP, P.A.
ENGINEERING & SURVEYING SERVICES
January 18, 2021 RECEIVED
Mr. Adam Parr
Division of Land Resources JAN 2 5 2021
Department of Environmental Quality
(.AND QUALITY
1612 Mail Service Center
MINING PROGRAM
Raleigh, NC 27699-1612
Re: Simpson Hocutt Mine, Carteret County, White Oak River Basin
Mr. Parr,
I have written responses to your comments below. Please review and let me know if I can provide
additional information.
1. Please provide a Jurisdictional Determination from the US Army Corps of Engineers to ensure
that the wetland boundaries are accurately buffered.
Response: Attached to this package is an approved JD Map signed by the Army Corps of
Engineers certifying the wetlands line as shown on the Mining Site Plans.
2. Please include Erosion and Sediment Control (E&SC) measures and show on the map in the NW
area of the mine to ensure no offsite sediment leaves the property during clearing and grubbing.
Response: Silt fence is now proposed along the northern boundary of the mining operation.
3. During site inspection a ditch was noticed running through the mine boundary leading north to
404 wetlands. E&SC measures need to be installed and shown on the map to prevent offsite
sediment leaving site via the ditch during clearing and grubbing.
Response: A note addressing this ditch has been added to the Mining Map stating, "Existing
ditch beside haul road shall have stone check dams every 200' and tie into mining operation to
prevent sediment from leaving site." I have spoken with contractor and he understands to
outlet the ditch into the "pond". There is also a ditch stabilization detail on the plans.
Sincerely,
l—
Charles M. Cullipher, PE
Vice President
HESTRON PLAZA TWO
1S1-A NC HWY 24
MOREHEAD CITY, NC 28SS7
(2S2)773-0090