NC0003417_Correction_20190612

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
June 12, 2019
Mr. Paul Draovitch, Senior Vice President EH&S
Duke Energy Carolinas, LLC
Mail Code: EC 13K
P.O. Box 1006
Charlotte, NC 28201-1006
Subject: Error Correction Letter
Permit NC0003417
H.F. Lee Energy Complex
Wayne County
Facility Class I
Dear Mr. Draovitch:
On June 5, 2019, the Division of Water Resources issued a Permit Renewal (NPDES permit No.
NC0003417) for H.F. Lee Energy Complex. It has been brought to our attention that the Permit
has an error in the Special Condition A. (17.).
Therefore, the Division made a correction to the appropriate page in the Permit. Please insert
the enclosed corrected sheet and discard the old sheet. This permit modification becomes
effective on the effective date of the permit.
All other terms and conditions in the original permit remain unchanged and in full effect.
These modifications are issued pursuant to the requirements of North Carolina General Statute
143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
If any parts, measurement frequencies or sampling requirements contained in this modification
are unacceptable to you, you have the right to an adjudicatory hearing upon written request
within thirty (30) days following receipt of this letter. This request must be in the form of a
written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, Post Office Drawer 11666, Raleigh, North Carolina
27604. Unless such demand is made, this decision shall be final and binding. If you have any
questions concerning this permit, please contact Sergei Chernikov at telephone number (919)
707-3606.
Sincerely, (�
4 ' Linda Culpepper
TDirector, Division of Water Resources
Hardcopy: NPDES Files
Central Files
E-copy: DWR/Washington Regional Office / Water Quality
US EPA Region 4
North Carolina Mpartintrst of ErMrorsrntntaf Qafty I DN*sbn ci Water Rtsourct, -
5R North Sabsbury Stetet I WWI SttWt Ctrder I Raleigh. North Crrahna 27699-1611

Permit NC0003417
j) The term chemical metal cleaning waste means any wastewater resulting from cleaning any
metal process equipment with chemical compounds, including, but not limited to, boiler tube
cleaning (40 CFR 423.11 (c)).
k) The term metal cleaning waste means any wastewater resulting from cleaning [with or
without chemical cleaning compounds] any metal process equipment including, but not
limited to, boiler tube cleaning, boiler fireside cleaning, and air preheater cleaning (40 CFR
423.11 (d)).
1) For all outfalls where the flow measurement is to be "estimated" the estimate can be done by
using calibrated V-notch weir, stop -watch and graduated cylinder, or other method approved
by the Division.
A. (16.) BIOCIDE CONDITION [NCGS 143-215.1]
The permittee shall not use any biocides except those approved in conjunction with the permit
application or in accordance with this condition. The permittee shall notify the Director in writing not
later than ninety (90) days prior to instituting use of any additional biocide used in cooling systems
which may be toxic to aquatic life other than those previously reported to the Division of Water
Resources. Such notification shall include completion of Biocide Worksheet Form 101 and a map
locating the discharge point and receiving stream. Completion of Biocide Worksheet Form 101 is not
necessary for those outfalls containing toxicity testing. Division approval is not necessary for the
introduction of new biocides into outfalls currently tested for whole effluent toxicity.
A. (17.) CLEAN WATER ACT SECTION 316(B) [40 CFR 125.951
The permittee shall comply with the Cooling Water Intake Structure Rule per 40 CFR 125.95. Pursuit
to 40 CFR 125.98 the Director has determined that operating and maintaining the existing Closed -
cycle recirculating system meets the requirements for an interim BTA.
The permittee shall submit the following information as required in §122.21 (except 122.21 (r)(6)) by
July 31, 2022.
§122.21(r)(2) Source Water Physical Data
§/ 22.2 1 (r) (3) Cooling Water Intake Structure Data
§ 122.21(r)(4) Source Water Baseline Biological Characterization Data
§/22.21(r)(5) Cooling Water System Data
§122.21(r)(6) Chosen Method(s) of Compliance with the Impingement Mortality Standard (the chosen
method will be defined after the site -specific BTA determination is made by the Director)
§ 122.21(r) (7) Entrainment Performance Studies
§ 122.21(r) (8) Operational Status
Based on the Director's selection of entrainment, this permit may be reopened to establish a
schedule to implement the selected technology to comply with the Rule.
Copies of all the study plans, study results, and any other applicable materials should be submitted
to:
1. Electronic Version Only (PDF and CD)
Division of Water Resources
WQ Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
2. Electronic Version (PDF and CD) and Hard Copy
Division of Water Resources
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