NC0038377_Quartely Progress Report for Jan.-March, 2017_20170420

DUKE
.. ENERGY®
File Mayo 12520 B-1
Mr Danny Snuth, 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 January - March, 2017
Dear Mr Smith
April 20, 2017
RECEIVED
APR 28 2017
STORMWDENRAER ND EUALITy
RMITT
1NG
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
January through March, 2017
If you have any questions, please contact Ms Lori Tollie [phone] or Mr Bert Lea (336) 597-
7309
1 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 passibility of fines and imprisonment
for knowing violations
Sincerely,
Tom Copolo — Plant Manager
Mayo Electric Generating Plant
Enclosure
TC/1 wt
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 January — March 2017
-Attachment A: Schedule -
Action Item
Reporting requirements
Status
(1) Investigations
Provide written investigations
Complete - The tegtitred investigative
report to RRO and Central Office
report was submitted to the Raleigh
within 225 days of the effective
Regional office and DWQ Central Office oil
date of this order
February 1, 2013 A follow up meeting to
discuss the report was held on February
14, 2013 Approval of the report was
received frons DWQ in a letter dated Mai ch
11, 2013
(2) Submit Construction
Submit proposed schedule to RRO
Complete - The Construction schedule was
Schedule
and 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
1 The partial Zero Liquid Discharge
system for FGD wastewater began
construction oil January 28, 2013 As of
March 31, 2015, construction of this system
was 100% complete The p-ZLD system
was turned over to plant operations oil
February 15, 2015 In accordance with the
terms of the SOC, notification of
completion ivas 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 the
project was 100% complete In accordance
with the terms of the SOC, notification of
completion was filed on October 17, 2013
3 The nionofill to be used to receive partial
ZLD conditioned ash began construction
on September 17, 2012 As of December
31, 2014, Phase 1 of the nionofill was
100% complete. Notification of the
completion of the nionofill was noted as
part of the required quarterly report dated
January 22, 2015
4 Construction of the dryfly ash reliability
project began on Jime 9, 2014 with the
installation of some initial footers As of
September 30, 2016, this project was 100%
complete Notification of the completion of
the construction oil the project was
submitted on October 19, 2016
(4) End Construction
Upon completion of construction written
See dates of notice provided under item #3
notice must be provided to DWQ
above
(5) Achieve Compliance
Operational Status must be communicated
Pollutant loading reduction to achieve NPDES
with NPDES Permit
in quarterly report Provide Final Written
Permit Limits is currently being demonstraned
Lt mics
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
DMR/reporting modified
Duke complied with all relaxed interim
in effect
accordingly
monthly average and daily niaxiniuni
tissue monitoring
hints during the quarter for which this
re ort is made
-Addendum 1.0 -
Action Item
Reporting Requirements
Status
Additional lake and fish
Quarterly Progress Report
Complete - Duke sampling ongoing as
tissue monitoring
referenced per EMC SOC WQ SIO -012
Addendum 10
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,
September 28, 2015 and Septeniber28, 2016
Signage
Quarterly Progress Report
Complete - Installation completed the week of
July 23, 2012 It was noted to the fall that the
signage had been removed by someone so new
signage was installed and a quartet ly
preventative maintenance task of venfymg the
boat dock signage is in place has been created