WQ0000020_Comments_20131101

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NCDENR
North Carolina Department of Environment and Natural Resources
,. Division of Water Resources
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director Secretary
October 23, 2013 RE EI E IDENPOK
John R. Toepfer, P.E. NODI 0-12013
Duke Energy Progress
410 S. Wilmington Street/PEB14 d�1eUIfBr�rO$eCtiOn Section,
Raleigh, NC 27601
RE: Response to comments from Duke Energy Progress dated September 6, 2013
concerning the Asheville Airport Engineered Fill Project — Area III Development
Dear Mr. Toepfer:.
The Asheville Regional Office of the Division of Water Resources (DWR) acknowledges receiving
a response to our review comments dated August 6, 2013. We have provided additional
questions and comments, in the bulleted paragraphs below. Please note that some comments
include requirements applicable to all structural fill areas at this site: ,
CCP leachate in Area Wand possibly Area III is/will be pumped and hauled by VLS of
South Carolina to their industrial wastewater treatment plant located in Mauldin, SC.
DWR is requesting a letter from VLS of South Carolina specifically agreeing to accept the
CCP leachate and verification that they are authorized to operate an industrial
wastewater treatment facility. Please provide a total volume of CCP leachate•that has
been pumped and hauled to date.
• The Metropolitan Sewerage District (MSD) of Buncome County recently issued an
industrial discharge permit to allow the CCP leachate to be discharged to their public
sewer system from both Area 1V and Area III. Please provide a letter from MSD
specifically agreeing to accept the CCP leachate and a copy of the industrial discharge
authorization.
• In order for DWR to monitor the condition of the ash post -emplacement, please provide
all -existing and future records pertaining to leachate water quality assessment,
discharge and disposal for all CCP fill areas. Please identify whether the leachate is
discharged to MSD (i.e., flow volume) or any pump and haul contractor. This data can bE
WATER QUALITY REGIONAL OPERATIONS SECTION
North Carolina Division of Water Quality —Asheville Regional Office
2090 U.S. Highway 70, Swannanoa, N.C. 28778
Phone (828)
FAX [phone]
Internet: h2o.enr.state.nc.us
An Equal Opportunity/Affirmative Action Employer

Duke Energy Progress - Asheville
October 23, 2013
Page 3 of 3
4. A quality assurance plan for groundwater monitoring.
r • According to 15A NCAC 02T.1204, you are responsible for providing a site plan that
includes the location of all wells (including usage and construction details if available),
streams (ephemeral, intermittent, and perennial), springs, lakes, ponds, and other
surface drainage features within 500 ft. of the CCPs use boundary.
DWR requested the relocation of monitoring wells MW3, MW4, and MW6. The new
locations for MW3 and MW6 are acceptable. The addition and location of MW7 is also
acceptable. It is understood that site conditions prevent the movement of MW4. The
current location of MW4 is acceptable.
Please contact me if you have any questions regarding our review comments. I can be reached
at [phone] or [e-mail].
Sincerely,
Ash
Jon-l'isga`''�'arrd—"DWMVJIFaSg-. -
t Laverty
er Qualit
1 -Regional Operations Section
Tonal Office