NC0038377_Quarterly Progress Report for July-September, 2016_20161007

DUKE
ENERGY®
PROGRESS
File: Mayo 12520 B-1
Mr. Danny Smith, Surface Water Supervisor
North Carolina Division of Water Resources
1628 Mail Service Center
Raleigh, NC 27699-1628
Subject: Duke Energy Progress, LLC.
Mayo Electric Generating Plant
Special Order by Consent
EMC SOC WQ S 10-012
Quarterly Progress Report for July - September, 2016
Dear Mr. Smith:
October 5, 2016
Mayo Steam Plant
Duke Energy Progress
10660 Boston Road
Roxboro, NC 27574
OCT 0 7 2016
Wa:er Quality
Permitting Section
In accordance with the NC Environmental Management Commission Special Order by Consent, EMC
SOC WQ S 10-012, Duke Energy Progress, LLC. (Duke) is hereby submitting this Quarterly Progress
Report. This quarterly progress report submittal covers activities and progress for the calendar quarter of
July through September, 2016.
If you have any questions, please contact Mr. Shannon Langley [phone] or Mr. Bert Lea (336)
597-7309.
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. 1 am aware that there are
significant penalties for submitting false information, including the possibility of fines and imprisonment
for knowing violations.
Sincerely,
Tom Copolo — Plant Manager
Mayo Electric Generating Plant
Enclosure
TC/esl
Cc: Wastewater Branch
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617

Duke Energy Progress, LLC.
Mayo Electric Generating Plant
Special Order by Consent EMC SOC WQ S10-012
Quarterly Progress Report July — September 2016
-Attachment A: Schedule -
Action Item
Reporting requirements
Status
(1) Investigations
Provide written investigations report to
Complete - The required investigative report
RRO and Central Office within 225
was submitted to the Raleigh Regional office and
days of the effective date of this order.
DWQ Central Office on February 1, 2013. A
follow up meeting to discuss the report was held
on February 14, 2013. Approval of the report
was received from DWQ in a letter dated March
11, 2013.
(2) Submit Construction
Submit proposed schedule to RRO and
Complete - The Construction schedule was
Schedule
Central Office.
submitted to DWQ on May 3, 2013.
(3) Begin Construction
Construction status must be
As detailed in the Construction schedule
communicated in quarterly report.
submitted May 3, 2013 and amended on October
17, 2013 and July 18, 2014:
I. The partial Zero Liquid Discharge system for
FGD wastewater began construction on January
28, 2013. As of March 31, 2015, constriction of
this system was 100910 complete. The p-ZLD
system was turned over to plant operations on
February 15, 2015. /n accordance with the
terms of the SOC, notification of completion was
filed on March 9, 2015.
2. The Dry bottom ash handling system began
construction on December 14, 2012. As of
March 31, 2014, construction of this system was
100% complete. 1n accordance with the terms of
the SOC, notification of completion was f led on
October 17, 2013.
3. The monofill to be used to receive partial ZLD
conditioned ash began construction on
September 17, 2012. As of December 31, 2014,
Phase 1 of the monofill was 1000/c complete.
Notification of the completion of the monofill
was noted as part of the required quarterly
report dated January 22, 2015.
4. Construction of the dryfly ash reliability
project began on June 9, 2014 with the
installation of some initial footers. This project
is approximately 80 % complete as of September
30, 2016.
(4) End Construction
Upon completion of construction
Pending completion of action item (3).
written notice must be provided to
DWQ.
(5) Achieve Compliance
Operational Status must be
Pending completion of action item (4).
with NPDES Permit
communicated in quarterly report.
Limits
Provide Final Written Account
illustrating pollutant loading reduction
within 545 days of construction
completion.

-Attachment B Interim Effluent Limitations and Monitoring Requirements -
Action Item
Reporting Requirements
Status
New interim limitations in
DMR/reporting modified accordingly
Duke complied with all relaxed interim monthly
effect
Quarterly Progress Report
average and daily maximum limits during the
tissue monitoring.
quarter.for which this report is made.
-Addendum 1.0 -
Action Item
Reporting Requirements
Status
Additional lake and fish
Quarterly Progress Report
Complete - Duke sampling ongoing as referenced per
tissue monitoring.
EMC SOC WQ S10-012 Addendum 1.0.
Reporting of monitoring
Quarterly Progress Report
Ongoing - Duke submitted results of additional
reservoir and fish tissue monitoring to the NC DWR on
September 25, 2012, September 19, 2013, September 23,
2014, Se tember 28, 2015 and September 28, 2016.
Signage
Quarterly Progress Report
Complete - Installation completed the week of July 23,
2012.
EMC SOC WQ S 10-012 Quarterly Progress Report October 2016