NC0004987_Application_20180719

sc, DUKEDuke Energy
EC13K 526 South Church Street
ENERGY®
Charlotte, NC 28202
July 19, 2018 Mailing Address:
PO Box 1006
Mr.John Hennessy Charlotte, NC 28201-1006
NC Division of Water Resources
Surface Water Protection Section
1617 Mail Service Center
Raleigh,NC 27699-1617
Subject: Application for Certification of Pollution Control Facility �Ec�9v���������W�
Marshall Steam Station 2o1$
Sherrills Ford,North Carolina; Catawba County JUL �,O
NPDES Permit No.NC0004987
\Nater 'esSect on
Dear Mr. Hennessy, P
erm►tttng
Pursuant to North Carolina General Statute(NCGS) §105-275(8),Duke Energy Carolinas,LLC. is requesting tax
exemption certification for qualifying water pollution control equipment currently being installed at the referenced
plant. The qualifying water pollution control equipment and appurtenances,operating in accordance with the terms and
conditions of the referenced NPDES permit,are detailed in the attached North Carolina Department of Environment
and Natural Resources,Division of Water Resources Application for Tax Certification and Exemption Form TC-WQ.
In accordance with NCGS §105-275(8), form TC-WQ details the facility's water cleaning devices and appurtenances,
which are"[Rjeal and personal property that is used...exclusively for ... waste disposal or to abate, reduce or prevent
the pollution of...water..."
Submission of this application is required as a process step in the State of North Carolina Department of Revenue's
pollution control certification process for real and personal property tax exemption of certain assets used in pollution
control capacities within the facility. The equipment's primary function is the waste disposal, reduction,or prevention
of water pollution.
Please send one copy of the completed tax exemption certification to the following address:
Ms. Anne Pifer
Manager EHS-CCP Permitting and Compliance
Duke Energy
526 S. Church Street,EC 13K
Charlotte, North Carolina 28202
If you have any questions regarding this request for tax exemption certification,please contact me at
[phone].
Sincerely,
A-ku
Anne Pifer
Manager,EHS-CCP Permitting and Compliance
Enclosure
c: Ms. Cindy Mobberley,Duke Energy
www.duke-energy.com

,
DIVISION OF WATER RESOURCES ; y` TCN:
APPLICATION FOR TAX CERTIFICATION This application is to be used only for waste treatment systems and equipment Rev.
& EXEMPTION FORM TC-WQ under the authority of the NC Division of Water Resources (DWR) 01/29/2016
DIRECTIONS: Complete and mail signed copies of the application form and all supporting information to both: 1)the County Tax Administrator for the County in which the facility is located(one copy)
AND 2)to the NC Division of Water Resources,Surface Water Protection Section, 1617 Mail Service Center, Raleigh,NC 27699-1617(two copies). Type or print in blue or black ink. A separate
application package is required for each facility where property proposed for tax certification is located.
THIS APPLICATION WILL NOT BE PROCESSED WITHOUT COMPLETE AND ACCURATE INFORMATION. If you have any questions regarding this application,please call the local tax office or the
NC Division of Water Resources at 919/807-6300 or their web site at https://ox.deq.prod.nc.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater/tax-
certification for more specific contact information.
Please Note:
a)Tax Certifications will only be processed for facilities under the authority of the DWR and only if the DWR has found that the described property:
1. Has been or will be constructed or installed;
2. Complies with or that plans therefore which have been submitted to the DWR indicate that it will comply with the requirements of the Environmental Management Commission;
3. Is being effectively operated or will,when completed,be required to operate in accordance with the terms and conditions of the permit,certificate of approval,or other document of approval
issued by the DWR;and
4. Has or,when completed,will have as its PRIMARY rather than incidental purpose the reduction of water pollution;
5.Is being used exclusively(100%)for waste treatment.
b)If approved,the Tax Certification issued will incorporate all requested assets at the facility that meet the criteria for Tax Certification by DWR. Therefore this application must include any new assets
for which Tax Certification is being requested,as well as any assets previously receiving Tax Certification from DWR for which Tax Certification is still needed.
A.Applicant(Applicant is the owner of,and taxpayer for,the property described in this application for tax certification.)
Name of Applicant: Name of Facility:
Duke Energy Carolinas,LLC. Marshall Steam Station
Address of Applicant,if different from facility where property located: Physical Address of Facility where property located(no P.O. Box):
8320 NC-150 8320 NC-150
Sherrills Ford,NC 28673 Sherrills Ford,NC 28673
(address) (city) (zip) (street address) (city) (zip)
Business Relationship of Applicant to facility where property located:
County where property located: Catawba
Name of Contact Person at Facility where property located:
Brad Loveland
Does the Applicant hold any NC Division of Water Resources Permits?
®Yes / 0 No Title: Sr.Environmental Specialist Phone Number: 980-373-2820
If yes,please list Permit No.NC0004987
Permit No(s):
If approved,will this be the first Tax Certification issued for this Facility? If no,attach any previously issued
❑ Yes / ® No tax certifications
B.Complete this Section only if the Operator/User of the facility and equipment is different from the Owner of the facility.
Name of Operator/User:
Operator/User Address:
(address) (city) (zip)
Operator/User Contact Name:
Relationship between Operator/User of facility and equipment and applicant:
***ATTACH A PROCESS SCHEMATIC TO YOUR APPLICATION The number of each item for which Tax Certification is being requested must be shown on the schematic*** Application continues on
Next page

DIVISION OF WATER RESOURCES TAX CERTIFICATION & EXEMPTION APPLICATION PAGE 2
Waste Treatment Systems & Equipment: Waste treatment systems&equipment must be used exclusively for the abatement of water pollution Rev.09/01/2013
For DWR Use Was asset listed in Asset Number, %of time item is Is this asset
For County Only'A' Year of Original Historical
U.Only Approved'D' Description of Waste Treatment Systems or Equipment the permit(Yes/No) Vehicle Identification How is this equipment used for pollution abatement? used for pollution replacing a prior
Disapproved Number(VIN) abatement Acquisition Cost" asset?
Included in updated Under
1 Dry bottom ash handling NPDES permit application WA Bottom ash handling system to replace ash basin per CCR requirements 100%construction 2018 $98,192,136 No
Included in updated Under
2 Lined Retention Basins NPDES permit application WA Lined retention basin to replace ash basin per CCR requirements 100%construction 2018 $35,049,617 Yes
Included in updated Piping installed to reroute plant water away from Ash basin and to new Lined Under
3 Plant water reroute NPDES permit application N/A Retention Basin 100%construction 2018 $48,991,521 No
Included in updated Physical/chemical wastewater treatment system installed to treat FGD Under
4 FGD Wastewater Treatment System NPDES permit application N/A wastewater to meet updated permit limits 100%construction 2018 $85,899,031 Yes
5
6
7
11
a
9
10
11
12
13
14
15
Attach additional pages if necessary
•If the asset is listed in the DWO permit,the description must be identical as listed on the current permit. If the asset is not specifically listed in the DWO permit,the applicant must attach detailed information as to why the asset should qualify for Tax Certification.
When certifying systems or equipment,DENR is not certifying the cost of the equipment or the year of acquisition.
Facilities: To qualify for tax certification,the building or section of building being applied for,must be used exclusively for water pollution prevention. A sketch of the building,square footage along with details
as to how the building is used for water pollution prevention,is required.
Land: To qualify for tax certification,the land must be used exclusively for water pollution prevention. A schematic diagram of the facility detailing the land being applied for is required. The amount of land
(acreage)is required and how this land is being used to prevent water pollution. For wastewater treatment and irrigation system list separately the acreage used for actual treatment from the acreage required by
the facility's water quality permit for buffers and setbacks.
SIGNATURE:
I hereby certify that the above equipment,facilities and/or land are used for the purpose stated,and that the information presented in this application is accurate. Furthermore,I certify that any portable or mobile
equipment listed on this application will be used exclusively in the state of North Carolina.
Applicant
Signature: Dave Renner Title: VP CCP Engineering Date: ?`j-if
4..4.,...---
(print name also)
NOTICE: The penalty for fals_ ment,representation or certification Of: Duke Energy Carolinas,LLC
herein includes imprisonment- d/or the assessment of civil penalties. (Name of Applicant Business Entity) TC-Wo

Attachment A
Dry Bottom Ash Handling System
As a result of Coal Ash Management Act and the federal CCR Rule, Marshall's bottom ash handling must be
converted from a wet sluice operation to a dry ash handling system. The Dry Bottom Ash Handling System project
will include the following water pollution control facilities:
• three(3) United Conveyor Corporation(UCC)supplied Remote Submerged Flight Conveyors(RSFC)
• Overflow surge tank
• Associated pumps(15)
• Load-out bunkers
• Pipe rack to SFC Island and associated pipes
See photos below for more information on placement of these water pollution control facilities.
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• Lined Retention Basins
In response to the CCR Rule, Marshall Steam Station will be closing the ash basin that currently accepts
sluiced bottom ash. This project will reroute process piping and storm water flows to new lined retention
basins. The new structures will be in compliance with ELG,CAMA and CCR Rules. The Lined Retention
Basins project will include the following water pollution control facilities:
• two lined basin primary cells
• one secondary lined polishing pond
• chemical addition equipment at the inlet and outlet
• one holding basin to provide retention and treatment for high-volume flows
See diagram below for more information on placement of these water pollution control facilities.
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Plant water reroute
At Marshall Steam Station, low volume and process flow streams are routed to the ash basin prior to discharging
through Outfall.As a result of CAMA and the CCR Rule, Marshall's ash basin will not be allowed to receive these
flows.This project will redirect all of the process and storm water flow streams,that currently go to the ash basin,
to the new lined retention basins for treatment prior to discharge.The Plant Water Reroute project will include the
following water pollution control facilities:
• Seven Lined Basins—Two Primary and One Secondary Retention Basins(19.5 ac), Holding Basin (12.5
acres),Two Coal Pile Basins, Gypsum Basin
• Twenty Two(22) New Process Pumps, including installation of four(4) 10000 GPM Flygt Pumps to support
new Yard Sump 1A
• Three Chemical Feed Locations—Influent and effluent of the retention basin as well as the holding basin—
Ancillary Equipment requires routing service water and potable water out to the retention basins and
holding basins
• 68,000 LF of Underground Piping
• Three PCMs
See diagram below for more information on placement of these water pollution control facilities.
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FGD Wastewater Treatment System- Replacement
Installation of a new FGD wastewater treatment(WWT)system at Marshall Station to meet the requirements of
the NPDES program.The new WWT system will include the following water pollution control facilities:
• equalization tanks(2)
• reaction tanks(3)
• clarifiers(2)
• pumping and delivery systems for chemical additions and pH control
• media filtration
• attached growth bioreactors
• filter presses(3)
• ultra-filtration
• compressed air system
• utility piping
• electrical system and equipment
• control room with distributed control system (DCS)
See diagram below for more information on placement of these water pollution control facilities
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