NC0005363_Discharge from Outfall 001_20200624

4., DUKE W. H.Weatherspoon Plant
ENERGY 491 Power Plant Rd
Lumberton,NC 28358
PROGRESS RECEIVED
Mailing Address:
JUN 2 9 2020 Kent Tyndall
L.V.Sutton Energy Complex
NCDEQ/DWRINPDES 801 Sutton Steam Plant Rd
Wilmington,NC 28401
June 24, 2020 o 910.341-4775
f 910.341-4790
Certified Mail ie 7018 1 130 0001 4419 9597(2 copies)
NCDEQ-DWR, FRO
225 Green Street, Suite 714
Fayetteville, NC 28301
Subject: Weatherspoon's June 2020 Discharge from Outfall 001
Dear NCDEQ-DWR Regional Supervisor:
In accordance with A. (1) Footnote 1 of National Pollutant Discharge Elimination System
(NPDES) Permit No. NC0005363; we are submitting this written information on the June 19,
2020, discharge from Outfall 001 to the Lumber River. The following written information is
provided within ten (10) days of the discharge:
• At 1:00 PM on June 18, 2020; verbal 24-hours in advance notification made to NC DWR-
FRO estimating 200 million gallons would be discharged beginning 6/20/2020 1:00 PM
at 4 MGD. We have corrected these total gallons to 100 million to be discharge via
email.
• At 1:42 PM on June 18, 2020; verbal 24-hours in advance notification attempt was made
to NC DWR-NPDES Permitting Unit. This was followed up with an email at 14:48 PM.
• At 1:48 PM on June 18, 2020; voice message 24-hours in advance notification made to
NC WRC.
• At 1:00 PM on June 19, 2020; Safety and mobilization activities began, and Outfall 001
was discharging at 4 MGD flow by 2:15 PM. This discharge will continue until the cooling
pond level lowers to its normal operating level. At this time, we cannot provide a date the
discharge will cease but expect it to last approximately 4 - 6 weeks.
• The purpose of the maintenance discharge is to lower the Weatherspoon cooling pond
level to facilitate tree cutting and vegetation maintenance on the dam.
• Once the cooling pond reaches the desired level the discharge from Outfall 001 will
cease.
• No other maintenance discharges of Outfall 001 are expected, therefore there are no
steps to take to eliminate or prevent the recurrence of the discharge.
• Since this was a planned discharge due to maintenance activities, the discharge start
date and time was communicated in the advance notification.
• We will monitor the discharge and provide the data as specified by our NPDES Permit.
• Instream monitoring of the Lumber River will be conducted upstream and downstream
as required by our NPDES permit and reported on the monthly DMR.

Weatherspoon's June 2020 Discharge from Outfall 001
June 24.2020
Page 2
If there are any questions, please contact either:
• Mr. Kent Tyndall, EHS Professional for the W. H. Weatherspoon Plant; phone (910) 341-
4775 or e-mail Kent.Tvndall@duke-ener•y.com; or
• Ms. Joyce Dishmon, Environmental Specialist with our Environmental Permitting and
Compliance Group, phone [phone] or email [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,
Jeffrey Flanagan
Station Manager
C: Certified Mail#7018 1130 0001 4419 9603(1 copy)
NC DEQ- DWR, NPDES Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Certified Mail#7017 2680 0000 1260 9324(1 copy)
NC WRC
1722 Mail Service Center
Raleigh, North Carolina 27699