NC0001422_Operation Condition Clarification_20140828

NCDEN
North Carolina Department of Environment and Natural Resources
Pat McCrory John E, Skvada, III
Governor Secretary
September l9, 2014
CERTIFIED MAII. 7013 2630 0001 9"S 1567
RETURN RECEIPT REOUESTED
Mark McIntire
Duke Energy
410 S. Wilmington Street
Raleigh, NC 27601
Subject: Withdrawal of August 28, 2014 Operating Condition Clarification letter
Allen Steam Station NC0004979 Gaston County
Buck Steam Station NC0004774 Rowan County
Marshall Steam Station NC0004987 Catawba County
Lee Steam Electric Plant NC0003417 Wayne County
Weatherspoon Steam Electric Plant NC0005363 Robeson County
Mayo Steam Electric Power Plant NCO038377 Person County
Roxboro Steam Electric Power Plant NCON3425 Person County
Riverbend Steam Station NC0004961 Gaston County
Asheville Steam Station NC000396 Buncombe County
Belews Creek NCO024406 Stokes County
L.V. Sutton Electric Plant NC0001422 New Hanover County
Cape Fear Steam Electric NC0003433 Generating Plant Chatham County
Dan River Combined Cycle Plant NC0003468 Rockingham County
Cliffside Steam Station NC0005088 Gaston County
Dear Mr. McIntire:
The Division hereby withdraws the letter sent to you dated August 28, 2014 that attempted to define
operating conditions to allow the initiation of coal ash removal under your existing NPDES permits. The
letter is being withdrawn due to concerns that were raised by the EPA in the attached September 16, 2014
letter.
Notwithstanding the delay in removing coal ash associated with a modification of your permits, NCDENR
agrees with EPA's suggestion that a modification process may be a better vehicle to initiate this work. If
you have any questions about this letter or the additional application requirements, please contact me at
(919) 807 -6309, or via e-mail at ieff nouvart(a)ncdenr.eov.
Sincerely,
Jeff Poupart
Water Quality Permitting Section Chief
cc: EPA Region IV, Mark Nufher
Central Files
DWR Regional Offices
1611 Mail Service Center, Raleigh, North Carolina 27699.1611
Phone, 919 - 707 -90001 Internet: www.ncwaler.org
An Equal Opportunity'. Affirmative Acfion Employer - Made in part by recycled paper

RCUR
CDM
North Carolina Department of Environment and Natural Resources
Pat McCrory John E. Skvada, III
Governor Secretary
August 28, 2014
CERTIFIED MAIL 7013 2630 00019"9 1581
RETURN RECEIPT REQUESTED
Mark McIntire
Duke Energy
410 S. Wilmington Street
Raleigh, NC 27601
Subject: Duke Energy Notice of Operating Condition Clarification
Allen Steam Station NC0004979 Gaston County
Buck Steam Station NCO004774 Rowan County
Marshall Steam Station NC0004987 Catawba County
Lee Steam Electric Plant NCO003417 Wayne County
Weatherspoon Steam Electric Plant NCO005363 Robeson County
Mayo Steam Electric Power Plant NCO038377 Person County
Roxboro Steam Electric Power Plant NC0003425 Person County
Riverbend Steam Station NCO004961 Gaston County
Asheville Steam Station NCO00396 Buncombe County
Belews Creck NCO024406 Stokes County
L.V. Sutton Electric Plant NC0001422 New Hanover County
Cape. Fear Steam Electric NCO003433 Generating Plant Chatham County
Dan River Combined Cycle Plant NC0003468 Rockingham County
Cliffside Steam Station NCO005088 Gaston County
Dear Mr. McIntire:
This letter is to clarify operating conditions for NPDES Permits issued to the above listed facilities. The
Permittee is authorized by the existing NPDES wastewater permits to decant all the wastewater in the ash
pond above the ash level provided the supernatant is directed through the same discharge point and
monitored in accordance with the NPDES permit requirements,
The Penmittee is prohibited from removing wastewater by dredging the ash, excavating the trenches, or
any other mechanical movement of the ash. Duke Energy shall submit the chemical characterization of
the interstitial ash water from the ash basin and predicted volume of wastewater that wil l be generated by
mechanical dewatering.
If you have any questions about this letter, please contact me at (919) 807 -6309, or via e-mail at
ieffmounan nr.ncdenneov.
Sincerely,
Jeff Poupart
Water Quality Permitting Section Chief
cc: EPA Region IV, Mark Nuiher
Central Files
DWR Regional Offices
1611 Marl Service Center, R*Igh, North Caroirna 27699 -1611
Phone [phone]Internet www ri rater.ag
An Equal OppxWM'. Afrmar ve Arum Employer -made m Fart by rec"a paper