NC0005363_Hurricane Florence 10 day letter - cooling pond discharge_20180924

4' DUKE
ENERGY®
PROGRESS
September 24, 2018
Trent Allen, Supervisor
North Carolina Division of Environmental Quality
225 Green Street, suite 714
Fayetteville, NC 28301-5095
Subject: Duke Energy Progress, LLC
Weatherspoon Plant
10 written follow up on discharge from cooling pond
NC0005363
Robeson County
Dear Mr. Allen,
W. H. Weatherspoon Plant
491 Power Plant Rd
Lumberton, NC 28358
The purpose of this letter is to follow-up on a 48 hour verbal notification made under the requirements
of the Weatherspoon plant's NPDES Permit Number NC0005363. Section A(1), Note 1 of the subject
permit requires that the permittee provide a written description to the Division of a discharge of the
cooling pond within 10 days of a discharge event. The discharge event associated with Hurricane
Florence has continued over a number of days and for the purposes of this notification is considered to
be one singular discharge event.
Description and duration of Cooling Pond Discharge
As you are aware there recently was a significant rain event attributed to Hurricane Florence in much of
eastern North Carolina. The subject facility outside of Lumberton, NC received approximately 46.4"
inches of rainfall from this system. On September 15, 2018 at approximately 7:00 pm, it was observed
that floodwaters from Jacobs swamp, had risen and were entering the permitted wastewater cooling
pond. This, along with the significant rainfalls, resulted in a release from the cooling pond via the
permitted outfall which began on September 15, 2018 at approximately 7:40 p.m. This discharge was
reported to staff of the Division of Water Resources on September 15`" at approximately 8:10 pm. As
required, samples of the discharge were taken. These sample results will be reported on our Discharge
Monitoring report for September, 2018.
As of the date of this letter, the discharge is continuing from permitted outfall 001. The discharge will
continue until such time that the water level return to normal operational levels. It is anticipated that
this discharge will cease within the week. Should that estimate change we will provide an update
during our ongoing verbal communications with your staff.
Duke staff have been obtaining and analyzing daily samples from within the Lumber River above and
below the Weatherspoon plant since September 17, 2018. These results have been provided to your
agency as results have become available and indicate that there is not any impact within the river
caused by this release.

Duke Energy Progress LLC
10 written follow up on discharge from cooling pond
September 25, 2018
Page 2 of 2
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.
If there are any questions regarding the information provided in this letter, please contact Steve Cahoon
at [phone] or Kent Tyndall, at [phone].
Sincerely,
Thomas Hanes
Station Manager- Weatherspoon Plant
Cc via email:
Anthony Locklear, Duke Energy Progress, LLC- Weatherspoon Plant
Kent Tyndall, Duke Energy Progress, LLC— Sutton Plant
Steve Cahoon - NCRH15
Via USPS
Jeff Poupart
1617 Mail Service Center
Raleigh, NC 27699-1617