NC0001422_Effluent Channel Fish Screen Proposal_20160506

ste:a DUKE L.V.Sutton Energy Complex
801 Sutton Steam Plant Rd
ENERGY® Wilmington, NC 28401
PROGRESS o.910.341.4750
t.910.341.4790
June 3, 2016
Certified Mail#7012 1640 0000 4619 8245(2 copies)
Mr. Eric Fleek
NCDE
OSciences Section, Biological Assessment Branch REc NEDir aItoDEQ'DVdR
Water
1621 Mail Service Center 0 & 215
Raleigh, NC 27699-1621 }UN
water
Subject: Duke Energy Progress, LLC ,9 Section
L. V. Sutton Energy Complex NPDES Permit NC0001422
Effluent Channel Fish Screen Proposal
Dear Mr. Fleek: Perm
In accordance with the requirements of the NPDES permit for the L.V. Sutton Energy Complex
(Sutton), Duke Energy Progress, LLC (Duke Energy) hereby submits the attached proposed
design for a fish screen in our effluent channel. This submittal is required by section A(9), Note
5, of our NPDES permit which became effective on December 7, 2015.
Note 5 of Section A(9) requires that "The facility shall install a screen or barrier at the end of the
Effluent Channel to minimize fish migration into the Channel. The design of the screen/barrier
shall be submitted to the Division for approval no later than 6 months from the effective date of
the permit. The screen/barrier shall be installed no later than 6 months after Division approval."
As you are aware, Duke Energy is required by the Coal Ash Management Act to close the two
Sutton ash ponds by August 2019. Closure of these ponds will be accomplished by excavating
and removing the ash to offsite locations and/or a proposed onsite landfill. The effluent channel,
which conveys wastewater from the Sutton Plant to the cooling pond (Sutton Lake) is flanked on
either side by legacy ash disposal areas. Full excavation of the ash will require that the portions
of the berms on either side of the effluent channel be removed and rebuilt. Significant work will
be performed within the effluent channel itself, including barge and equipment access. Current
proposals include the construction of sheet piling walls within the channel to facilitate full ash
removal. Due to the extent and complexity of these activities, and the urgency and priority with
which Duke Energy must perform the excavation activities, Duke Energy requests that the
Division allow the installation of a fish barrier after pond closure is complete and the effluent
channel has been re-established.
Once you have had an opportunity to review this submittal, we would request the opportunity to
meet with you to discuss the proposal, the ash excavation activities, and any other questions
you may have.
Duke Energy remains committed to safely closing ash basins at all of our North Carolina sites.
We look forward to continuing to work with staff from your agency in a collaborative manner to
facilitate this work.

L.V.Sutton Electric Plant NPDES Permit NC0001422
Effluent Channel Fish Screen Proposal
Page 2 of 2
If there are any questions on this submittal, please contact either:
• Ms. Toya Ogallo, Environmental Specialist at our North Carolina Regional Headquarters,
phone [phone] or email [e-mail], or
• Mr. Kent Tyndall, Environmental Professional for the L. V. Sutton Energy Complex Plant;
phone [phone] or e-mail [e-mail].
I certify, under penalty of law, that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information submitted. Based on
my inquiry of the person or persons who manage the system, or those persons directly
responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and
imprisonment for knowing violations.
Sincerely,
nit 6' It
Jesse E. Huntley, II
Station Manager
Enclosures
cc:
Sergei Chernikov, NCDEQ, NPDES Complex Permitting Unit
Jim Gregson, Supervisor, Surface Water Protection Section, Wilmington Regional Office

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CHANNEL MARKER / �\ ' 2.ELEVATIONS IS REQUIRED 3HOOWN ARE NAVDR TO FINAL 188 BASED
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(..._COOLING / SHEET PILE, BY OTHERS FOR ASH EXCLUDE FISH 4 INCH IN LENGTH AND LARGER ASSUMING FISH
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