20110717 Ver 1_More Info Received_20110823

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9 North Carolina Wildlife Resources Commission 0
Gordon S. Myers, Executive Director
Division of Water Quality
Central Office
1650 Mail Service Center
Raleigh, NC 27699-1650
919 807-6364
ATTN: Karen Higgins
August 18, 2011
Re: NCWRC Hyco Afterbay Boating Access Area (BAA)
Hyco Lake [030205, 22-58- (0.5), WS-V, B]
Roxboro, NC - Person County
Dear Ms. Higgins:
I?
AUG 2 3 2011
DENR- WATER QUALITY
'WETLANDSAND S,ORMVVATER SRWN ,
Please find below an itemized response to your request for additional information for the
project referenced above.
l.Per the GC 3693, `if concrete is used during construction ... prevent direct contact between curing
concrete and stream water .... and possible aquatic life/fish kills ". Please explain how you will
accomplish this during construction especially given the time of year (October) you propose to start
and potential for large rain events.
NCWRC standard construction practice is to pour the concrete ramp on high
ground away from the stream or lake and push it into final position with a bulldozer.
This process is called push slab construction and prevents contact of the curing
concrete with surface waters. Local weather forecasts are consulted when scheduling
concrete pours; any large rain event such as a tropical storm will result in
rescheduling the concrete pour thereby preventing the curing concrete from being
contacted by rainfall and being carried into the stream or lake via runoff. If there is a
chance of a local un-forecasted rain event, plastic sheeting sufficient to cover the
curing concrete is on hand to prevent curing concrete from being washed into the
stream or lake.
Mailing Address: N.C. Wildlife Resources Commission • 1720 Mail Service Center • Raleigh NC 27699-1720
Telephone: [phone]
.a Hyco Afterbay BAA
New Construction Page 2 August 18, 2011
Pearson County, NC
2. Once obtained, please provide DWQ with the lease agreement from Progress Energy. This
project will be put on hold (at your request) until the agreement is obtained.
The lease agreement will be provided as soon as possible after it is executed.
Five copies of this letter are provided as requested.
Thank you for working with us to complete the permitting process for this project. If you
have any questions or require additional information, please contact me via phone at 919 707-0363
or via email at [e-mail].
Respectfully,
J '?-. z .-
Daniel E. Cabe
Project Engineer