NC0004979_Renewal (Application)_20230131

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ROY COOPER ;
Governor s'‘
ELIZABETH S.BISER = tm�°^"
Secretary Q tM
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
January 31, 2023
Duke Energy Carolinas LLC
Attn: Jeffrey Flanagan, GM
253 Plant Allen Road
Belmont, NC 28012
Subject: Permit Renewal
Application No. NC0004979
Plant Allen Steam Station
Gaston County
Dear Applicant:
The Water Quality Permitting Section acknowledges the January 31, 2023, receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sin rely,
�
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
DEW)Q� North Carolina Department of Environmental Quality I Division of Water Resources
Mooresville Regional Office 610 East Center Avenue.Suite 301 Mooresville North Carolina 28115
b..=u=ui7,.......xo�.xy� 704.663.1699

A
len Steam
ation
�� �U KE 2 31 Plant Allen Road
`C ENERGY, Belmont NC,28012
704-829-2587
January 26, 2023
Sergei Chernikov, PhD.
North Carolina Division of Environmental Quality RECEIVED
1617 Mail Service Center
Raleigh,NC 27699-1617
JAN 31 2023
Subject: Duke Energy Carolinas, LLC.
Allen Steam Station NC E /DWA/NpDES
NPDES Permit NC0004979
Permit Renewal Request
Dear Dr. Chernikov:
Duke Energy Carolinas, LLC (Duke Energy) is submitting herewith information in support of the
NPDES renewal and reissuance of the subject NPDES permit. The Allen Steam Station's NPDES
permit will expire on July 31, 2023. Please find enclosed in this application the following items:
• Enclosure 1 - US EPA Form 1 —General Information
• Enclosure 2- US EPA Form 2C
• Attachment 1 - Form 1 —Section 6—Existing Environmental Permits
• Attachment 2- Form 1 —Section 7—Maps
• Attachment 3 - Form 1—Section 2—Line Drawing/Water Balance
• Attachment 4- Form 2C—Section 3-Outfall Flows,Contributing Operations and Treatment Technologies
• Attachment 5- Form 2C—Section 8—Used or Manufactured Toxics
• Attachment 6- NCDEQ NPDES Permit Condition A.(21)Clean Water Act Section 316(a)*
• Attachment 7- NCDEQ NPDES Permit Condition A.(22)Clean Water Act Section 316(b)*
• Attachment 8- NCDEQ NPDES Permit Condition A.(23)Fish Tissue Monitoring*
• Attachment 8- NCDEQ NPDES Permit Condition A.(24)Instream Monitoring
*Only cover letters have been included due to reports sent in a separate package
Duke Energy requests the following updates and changes to the permit:
1. The description of outfall 002 be updated to remove all process wastewater flows from
entering the ash pond. All flows to the ash pond were stopped in February 2019 with the
initiation of decanting.
2. Permit condition A.(2). be removed from the permit since decanting of the ash basin was
completed in June 2020.
www.duke-energy.com

Permit NC0004979 Renewal Request
January 2023
3. Request the following changes to Permit Condition A.(3.):
a. Toxicity sampling frequency be modified to quarterly for outfall 002 as the station
has demonstrated compliance with the modified waste stream flows that lead to
the previously increased testing frequency.
b. Adjust all weekly requirements to monthly or 2/month as the station has
demonstrated compliance with the modified waste stream flows that lead to the
previously increased testing frequency.
c. Remove BOD and Fecal Coliform testing requirements as no domestic
wastewater is directed to the ash basin.
d. Remove Total Copper and Total Iron limits in addition to Footnote 1. as no
chemical metal cleaning wastewaters are discharged to the ash basin.
e. Remove nonstandard permit language concerning 85%of an allowable level of
As, Se, Hg,Ni, and Pb.
f. Remove the following language, "By November 1, 2018 there shall be no
discharge of pollutants in fly ash transport water. This requirement only applies
to fly ash transport water generated after November 1, 2018. "
g. Remove the following language, "In accordance with the N.C.G.S. § 130A-
309.210, by December 31, 2019, the facility shall convert to the disposal of dry
bottom ash, as defined in the Coal Ash Management Act("CAMA"). "
h. Remove the following language, "The facility shall notes DWR Complex NPDES
Permitting Unit and DWR Mooresville Regional Office seven calendar days, in
writing,prior to the commencement of the dewatering. "
i. Remove the following language, "When the facility commences the ash
pond/ponds dewatering, the facility shall treat the wastewater discharged from
the ash pond/ponds using physical-chemical treatment, if necessary, to assure
state Water Quality Standards are not contravened in the receiving stream. Duke
Energy shall notify DWR NPDES Permitting and DWR Mooresville Regional
Office, in writing, within seven calendar days of installing additional physical-
chemical treatment at this Outfall. "
4. Update weekly flow measurement frequency to quarterly for permit condition A.(7.)to
align with quarterly Oil and Grease monitoring.
www.duke-energy.com

Permit NC0004979 Renewal Request
January 2023
5. Request the following changes to Permit Condition A.(9.):
a. Toxicity sampling frequency be modified to quarterly for outfall 006 as the
station has demonstrated compliance with the modified waste stream flows
that lead to the previously increased testing frequency.
b. Remove metals from Effluent Characteristics list not supported by RPA data
to warrant sampling for outfall 006
6. Request the following changes to Permit Conditions A.(12.)through A.(15.):
a. Sampling frequency be modified to annually for outfall(s) 103, 104, 108, and
108B as the station has demonstrated compliance.
b. Remove sampling for mercury, barium, iron, manganese, zinc, copper, selenium,
nitrate, and conductivity.
7. Request the following changes to Permit Condition A.(17.):
modified to quarterlyfor outfall 002 as the station
a. Toxicity sampling frequency be
has demonstrated compliance with the modified waste stream flows that lead to
the previously increased testing frequency.
b. Remove decanting flow reference as decanting was completed in May 2020.
8. Update Condition A.(22.)to reflect station compliance with 316(b).
9. Update Condition A.(23.)to monitoring from Annual to during the third year of the
permit cycle.
10. Update Condition A.(24.)monitoring from monthly to quarterly.
Should you have any questions please contact Ms. Elizabeth Glenn at elizabeth.glenn@duke-
energy.com or at(980) 373 0530.
www.duke-energy.com

Permit NC0004979 Renewal Request
January 2023
CERTIFICATION
"I cert(, 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. "
Sincerel ,
Jeffery as .0
Gener Manger III—Alle eam Station
Attachments
Enclosures
www.duke-energy.com

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Enclosure 1
US EPA Application Form 1 - General Information

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
Form U.S.Environmental Protection Agency
\/EPA Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTION 1.ACTIVITIES REQUIRING AN NPDES PERMIT(40 CFR 122.21(f)and(f)(1))
1.1 Applicants Not Required to Submit Form 1
Is the facility a new or existing publicly owned Is the facility a new or existing treatment works
1.1.1 treatment works? 1.1.2 treating domestic sewage?
If yes,STOP.Do NOT complete No If yes, STOP. Do NOT No
Form 1.Complete Form 2A. complete Form 1.Complete
Form 2S.
1.2 Applicants Required to Submit Form 1
1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
a production facility? currently discharging process wastewater?
Yes 4 Complete Form 1 2 No 0 Yes 4 Complete Form El No
o_ and Form 2B. 1 and Form 2C.
= 1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
Yes 4 Complete Form 1 0✓ No ❑ Yes 9 Complete Form p✓ No
cc and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
' discharge is composed entirely of stormwater
associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
Yes 4 Complete Form 1 E✓ No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
b 15 .
SECTION 2.NAME,MAILING ADDRESS,AND LOCATION(40 CFR 122.21(f)(2))
2.1 Facility Name
Allen Steam Station
O 2.2 EPA Identification Number
NCD043678937
2.3 Facility Contact
Name(first and last) Title Phone number
Michael R Gantt Environmental Professional [phone]
Email address
:c [e-mail]
• 2.4 Facility Mailing Address
Street or P.O. box
253 Plant Allen Road
City or town State ZIP code
Belmont NC 28012
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
6-7 2.5 Facility Location
a . Street,route number,or other specific identifier
Q 0 253 Plant Allen Road
rn
_ o County name County code(if known)
(73 Gaston
- 0
0 _I City or town State ZIP code
z Belmont NC 28012
SECTION 3.SIC AND NAICS CODES(40 CFR 122.21(f)(3))
3.1 SIC Code(s) Description(optional)
4911 Electric Power Services
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3.2 NAICS Code(s) Description(optional)
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SECTION 4.OPERATOR INFORMATION(40 CFR 122.21(f)(4))
4.1 Name of Operator
Duke Energy Carolinas,LLC
4.2 Is the name you listed in Item 4.1 also the owner?
8 ❑✓8Yes ❑ No
4.3 Operator Status
1'0 ❑ Public—federal ❑ Public—state ❑ Other public(specify) _
0 ❑✓ Private ❑ Other(specify)
4.4 Phone Number of Operator
[phone]
4.5 Operator Address
r Street or P.O.Box
.= City or town State ZIP code
0 0
0 U
0. Email address of operator
0
SECTION 5.INDIAN LAND(40 CFR 122.21(f)(5))
-0 5.1 Is the facility located on Indian Land?
❑Yes ❑✓ No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
SECTION 6.EXISTING ENVIRONMENTAL PERMITS(40 CFR 122.21(f)(6))
R 6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
m NPDES(discharges to surface ❑ RCRA(hazardous wastes) ❑ UIC(underground injection of
= water) fluids)
w NC0004979 NCD043678937
w ❑ PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
Tr')
❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ❑ Other(specify)
SECTION 7.MAP(40 CFR 122.21(f)(7))
7.1 Have you attached a topographic map containing all required information to this application?(See instructions for
C specific requirements.)
03
❑✓ Yes ❑ No ❑ CAFO—Not Applicable(See requirements in Form 2B.)
SECTION 8.NATURE OF BUSINESS(40 CFR 122.21(f)(8))
8.1 Describe the nature of your business.
The Allen Steam Station is an electric generating facility consisting of 5 coal burning units with Units 2,3 and 4
cn retired. Units 1 and 5 are still in operation.
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SECTION 9.COOLING WATER INTAKE STRUCTURES(40 CFR 122.21(f)(9))
9.1 Does your facility use cooling water?
ElYes ❑ No 4 SKIP to Item 10.1.
2 9.2 Identify the source of cooling water.(Note that facilities that use a cooling water intake structure as described at
40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
co NPDES permitting authority to determine what specific information needs to be submitted and when.)
v :: Catawba River
SECTION 10.VARIANCE REQUESTS(40 CFR 122.21(f)(10))
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
when.)
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑✓ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
❑ Not applicable
EPA Form 3510-1(revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
SECTION 11.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
Column 1 Column 2
❑✓ Section 1:Activities Requiring an NPDES Permit ❑ w/attachments
❑✓ Section 2:Name,Mailing Address,and Location ❑ wl attachments
❑ Section 3:SIC Codes ❑ w/attachments
❑✓ Section 4:Operator Information ❑ w/attachments
❑✓ Section 5:Indian Land ❑ w/attachments
c
❑✓ Section 6:Existing Environmental Permits ❑✓ w/attachments
a) ❑✓ Section 7:Map ❑ w/topographic ❑ wl additional attachments
1-4 map
o ❑✓ Section 8:Nature of Business ❑ wl attachments
w ❑✓ Section 9:Cooling Water Intake Structures ❑ wl attachments
❑✓ Section 10:Variance Requests ❑ w/attachments
N_ ❑✓ Section 11:Checklist and Certification Statement ❑ w/attachments
11.2 Certification Statement
U
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. lam aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Jeffrey D Flanagan GM III Regulated Stations
Signature Date signed
/210/2.0 Z 3
EPA Form 3510-1(revised 3-19) Page 4

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Enclosure 2
US EPA Application Form 2C - Wastewater Discharge Information

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
Form U.S. Environmental Protection Agency
2C A Application for NPDES Permit to Discharge Wastewater
I
NPDES #EPA EXISTING MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURE
OPERATIONS
SECTION 1. OSTFALL LOCATION (40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below.
° Outfa I I
Receiving Water Name Latitude Longitude
Number
-J
001 South Fork River 35.189444 81.012222
O
SECTION 2. LINE DRAWING(40 CFR 122.21(g)(2))
a) 2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a
° •= water balance? (See instructions for drawing requirements. See Exhibit 2C-1 at end of instructions for
17.1 E example.)
2Yes ❑ No
SECTION 3. AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1, provide average flow and treatment information. Add
additional sheets if necessary.
**Outfall Number** 001
Operations Contributing to Flow
Operation Average Flow
Condenser Cooling Water, Intake Screen 649.4 mgd
Backwash g
mgd
mgd
a)
cts
mgd
Treatment Units
Description Final Disposal of Solid or
Code from Liquid Wastes Other Than
(include size, flow rate through each treatment Table 2C-1 q
unit, retention time, etc.) by Discharge
Screen discharge to surface water 1T, 4A

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
3.1 *"Outfall Number**
cont. Operations Contributing to Flow
Operation Average Flow
mgd
mgd
mgd
mgd
Treatment Units
Description Final Disposal of Solid or
(include size, flow rate through each treatment Code from Liquid Wastes Other Than by
ounit, retention time, etc.) Table 2C-1 Discharge
U
c
a)
E
w
sv
L
_ **Outfall Number**
co
c
Operations Contributing to Flow
Operation Average Flow
mgd
a)
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Table 2C-1 Liquid Wastes Other Than by
unit, retention time, etc.) Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
E
a� El Yes ❑ No SKIP to section 4.
• d
3.3 Have you attached a list that identifies each user of the treatment works?
❑ Yes ❑ No

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 4. INTERMITTENT FLOWS (40 CFR 122.21(g)(4))
Except for storm runoff, leaks, or spills, are any discharges described in Sections 1 and 3 intermittent or
4.1 seasonal?
❑ Yes 0 No y SKIP to section 5
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach add. pages if necessary
Outfall Frequency Flow Rate
Operation
Number (List) Average Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
NA days/ months/ mgd mgd days
week year
days/ months! an d mgd da s
d 001 week year g g y
days/ months/ mgd mgd days
week year g g y
days/ months! mgd mgd days
week year
days/ months! mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/
week year mgd mgd days
days/ months/ mgd mgd days
week year
days! months! mgd mgd days
week ear
SECTION 5. PRODUCTION (40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
0 Yes ❑ No 4 SKIP to Section 6.
g 5.2 Provide the following information on applicable ELGs.
w ELG Category ELG Subcategory Regulatory Citation
power generation
Steam Electric 40 CFR 423
Are any of the applicable ELGs expressed in terms of production (or other measure of operation)?
c 5.3 ❑ Yes 0 No y SKIP to Section 6.
0
w Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
E Outfall Quantity per Unit of
n Operation, Product, or Material
a Number Day Measure
a>
U)
as
m
5.4
_o
Y
V
Ta
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0
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a

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 6. IMPROVEMENTS (40 CFR 122.21(g)(6))
Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing,upgrading,or operating wastewater treatment equipment or practices or any other environmental
6.1 programs that could affect the discharges described in this application?
❑Yes El No SKIP to Item 6.3.
� w
_ = 6.2 Briefly identify each applicable project in the table below.
as a,
m m Brief Identification Affected Final Compliance Dates
-0 > Outfalls
CT) a Sources)of
R o and Description of
(list outfall Discharge
E Project number) Required Projected
Have you attached sheets describing any additional water pollution control programs(or other environmental
6.3 projects that may affect your discharges)that you now have underway or planned?(optional item)
❑Yes ❑ No 0 Not Applicable
SECTION 7. EFFLUENT AND INTAKE CHARACTERISTICS (40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn,the tables
you must complete. Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for
7.1 any of your outfalls?
❑Yes O No SKIP to Item 7.3.
O If yes, indicate the applicable outfalls below.Attach waiver request and other required information to the
7.2 application.
Outfall Number: Outfall Number: Outfall Number:
Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not
7.3 been requested and attached the results to this application package?
as
= q PP� P 9
= O Yes ❑ No A Waiver has been requested from my NPDES permitting authority for all pollutants at all
a, outfalls
w Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry
7.4 categories listed in Exhibit 2C-3?(See end of instructions for exhibit.)
O Yes ❑ No SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
0 Yes ❑No
7.6 List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)
identified in Exhibit 2C-3.
Primary Industry Category Required GC/MS Fraction(s)
(Check applicable Boxes)
Steam electric power plants O Volatile El Acid ❑ Base/Neutral 0 Pesticide
❑Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral ❑ Pesticide

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
7.7 Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the GC/MS
fractions checked in Item 7.6?
El Yes ❑No
7.8 Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
where testing is not required?
El Yes ❑No
Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
7.9 required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
O Yes ❑No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
0 Yes Note that you qualify at the top of Table B,then SKIP to item 7.12 O No
Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have determined
S, 7.11 testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,pollutants you have
= indicated are"Believed Present"in your discharge?
O Yes ❑ No
N
Table C.Certain Conventional and Non-Conventional Pollutants
w
o7 12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed on Table C for
as all outfalls?
U O a) Yes ❑ No
Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
-a 7.13 indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
"Believed Present"?
c
m O Yes ❑No
W
Table D.Certain Hazardous Substances and Asbestos
7.14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
O Yes ❑No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged and
(2)by providing quantitative data,if available?
O Yes ❑No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you know
or have reason to believe that TCDD is or may be present in the effluent?
❑Yes Complete Table E ID No SKIP to section 8
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑Yes ❑No
SECTION 8.USED OR MANUFACTURED TOXICS (40 CFR 122.21(g)(9))
u 8 1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as an
o intermediate or final product or byproduct?
r
O Yes ❑ No SKIP to section 9
8.2 List the pollutants below.
as
1. See attachment 5 4. 7.
2. 5. 8.
a)
3. 6. 9.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 9. BIOLOGICAL TOXICITY TESTS (40 CFR 122.21(g)(11))
Do you have any knowledge or reason to believe that any biological test for acute chronic toxicity has been made
9.1 within the last three years on (1) any of your discharges or(2) on a receiving water in relation to your discharge?
O Yes ❑ No SKIP to section 10.
rn
1- 9.2 Identify the tests and their purposes below.
Submitted to NPDES
Test(s) Purpose of Test(s) Date Submitted
o Permitting Authority?
H
171 Yes Li No
a, Whole Effluent Toxicity Chronic Toxicity Quarterly, monthly
° ❑ Yes ❑ No
m
CJ Yes ❑ No
SECTION 10. CONTRACT ANALYSES (40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in section 7 performed by a contract laboratory or consulting firm?
O Yes ❑ No SKIP to section 11.
Provide information to each contract laboratory or consulting firm below.
10.2 Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
rn Duke Energy Analytical Environmental Testing
Name of Laboratory/firm
Pace Laboratory Solutions
Laboratory address PO Box 7565, Asheville NC
13339 Hagers Ferry Road 28802
L �
UPhone number 9808755275
Nitrate-Nitrite—N.Aroclor 1016.Aroclor 1221.. Sulfate,Fluoride,Bromide,Zinc(Zn),Titanium
Aroclor 1232,Aroclor 1242,Aroclor 1248, (Ti),Tin(Sn),Manganese(Mn),Magnesium
Aroclor 1254,Aroclor 1260,Phosphorus, (Mg),Iron(Fe),Boron(B),Barium(Ba),
Acenaphthene,Acenaphthylene,Anthracene, Aluminum(Al),Thallium(TI)Low Level,Silver
Pollutant(s) analyzed Benzidine,Benzo(a)anthracene, (Ag),Selenium(Se),Nickel(Ni),Molybdenum
Benzo(a)pyrene,Benzo(b)fluoranthene, (Mo),Lead(Pb),Copper(Cu),Cobalt(Co),
Benzo(g,h,i)perylene,Benzo(k)tuoranthene,4- Chromium(Cr),Cadmium(Cd)Low Level,
Bromophenyl phenyl ether,Butyl benzyl Beryllium(Be),Arsenic(As).Antimony(Sb).
phthalate,bis(2-Chloro-1-methylethyl)ether,4- TSS,Oil and Grease
SECTION 11. ADDITIONAL INFORMATION (40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
o ❑ Yes 0 No SKIP to section 12.
11.2 List the information requested and attach it to this application.
1. 3.
47.
2. 4.
3. 5.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 12. CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and (d))
12.1 In Column 1 below, mark the sections of Form 2C that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
O Section 1:Outfall Location p w/attachments
O Section 2:Line Drawing O w/line drawing ❑ w/additional attachments
0 Section 3:Average Flows and Treatment El w/attachments ❑ w/list of each user of privately
owned treatment works
❑ Section 4:Intermittent Flows ❑ w/attachments
❑ Section 5:Production ❑ w/attachments
❑ Section 6:Improvements 0 w/attachments 0 w/optional additional sheets
describing any additional pollution
c ❑ w/request for a waiver and 0 w/explanation for identical outfalls
m
m0 w/small business exemption ❑ w/other attachments
co
o Section 7:Effluent and Intake O w/Table A w/Table B
Characteristics El w/Table C 0 w/Table D
ra
w 0 w/Table E
0 w/analytical results as an attachment
d
U
c O Section 8:Used or Manufactured Toxics El w/attachments
m
r
w ❑ Section 9:Biological Toxicity Tests ❑ w/attachments
Sc-
(.)
d
t ❑ Section 10:Contract Analyses 0 w/attachments
U
O Section 11:Additional Information CI w/attachments
0 Section 12:Checklist and Certification Statement C w/attachments
12.2 Certification Statement
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 fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Jeffrey Flanagan General Manager III
Signature C Date signed

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE A. CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS (40 CFR 122.21(g)(7)(iii))1 OUTFALL 001
Effluent Intake(optional)
Pollutant Maximum Maximum Long-Term Long Term
Waiver Daily Monthly Average Daily Number of Average Number of
Requested Units Discharge Discharge Discharge Analyses Value Analyses
(if applicable) (specify) (required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/L <2.0
1 (BOD5) El
lb/Day <3320
Concentration mg/L <20
2. Chemical oxygen demand (COD) ❑
Mass lb/Day <33200
Concentration mg/L 1.8
3. Total organic carbon (TOC) ❑
Mass lb/Day 2988
Concentration mg/L 4.8
4. Total suspended solids (TSS) ❑
Mass lb/Day 7970
Concentration mg/L <0.10
5. Ammonia (as N) ❑
Mass lb/Day <166
6. Flow ❑ Rate MGD 199
Temperature (winter) ❑ °C °C 18.3
7.
Temperature (summer) ❑ °C °C 18.3
pH (minimum) U Standard Units s.u. 7.0
8.
pH (maximum) U Standard Units s.u. 7.0

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long-
(and
CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2
through 5 of this table. Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Concentration ug/L <1
1.1 Antimony,total(7440-36-0) 0 ❑ 2Mass lb/Day <1.66
Concentration ug/L <1
1.2 Arsenic,total(7440-38-2) E ❑ O
Mass lb/Day <1.66
Concentration ug/L <1
1.3 Beryllium,total(7440-41-7) 0 ❑ E
Mass lb/Day <1.66
Concentration ug/L <0.1
1.4 Cadmium,total(7440-43-9) 0 ❑ 2
Mass lb/Day <0.166
Concentration ug/L <1
1.5 Chromium,total(7440-47-3) O ❑ O
Mass lb/Day <1.66
Concentration ug/L 16.4
1.6 Copper,total(7440-50-8) E p ❑
Mass lb/Day 27.2
Concentration ug/L <1
1.7 Lead,total(7439-92-1) 0 ❑ O
Mass lb/Day <1.66
Concentration ng/L 0.510
1.8 Mercury,total(7439-97-6) p ❑ O
Mass lb/Day 0.000847
Concentration ug/L <1
1.9 Nickel,total(7440-02-0) C ❑ O
Mass lb/Day <1.66
Concentration ug/L <1
1.10 Selenium,total(7782-49-2) p ❑ 0Mass lb/Day <1.66
Concentration ug/L <1
1.11 Silver,total(7440-22-4) O ❑ O
Mass lb/Day <1.66

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 12221(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
CAS Number,if available) Testing Long-
(and
(specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Concentration ug/L <0.2
1.12 Thallium,total(7440-28-0) 0 ❑ ID
Mass lb/Day <0.332
Concentration mg/L 0.015
1.13 Zinc,total(7440-66-6) ❑ 0 ❑
Mass lb/Day 24.9
Concentration mg/L <0.010
1.14 Cyanide,total(57-12-5) 1D ❑ O
Mass lb/Day <16.6
Concentration ug/L 1.9
1.15 Phenols,total O ❑ ❑
Mass lb/Day 3.16
Section 2.Organic Toxic Pollutants(GC/MS Fraction-Volatile Compounds)
Concentration ug/L <5.0
2.1 Acrolein(107-02-8) DI ❑ 0Mass lb/Day <8.3
Concentration ug/L <5.0
2 2 Acrylonitrile(107-13-1) O ❑ p
Mass lb/Day <8.3
Concentration ug/L <1.0
2.3 Benzene(71-43-2) p ❑ p
Mass lb/Day <1.66
Concentration ug/L <1.0
2 4 Bromoform(75-25-2) O ❑ O
Mass lb/Day <1.66
Concentration ug/L <1.0
2 5 Carbon tetrachloride(56-23-5) p ❑ p
Mass lb/Day <1.66
Concentration ug/L <1 0
2.6 Chlorobenzene(108-90-7) ❑ ❑ O
Mass lb/Day <1.66
Chlorodibromomethane Concentration ug/L <1.0
2.7 124-48-1
( ) ❑ Mass lb/Day <1.66
Concentration ug/L <2.0
2.8 Chloroethane(75-00-3) p ❑ El
Mass lb/Day <3.32

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Lon
g
(and CAS Number,if available) (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-chloroethylvinyl ether Concentration ug/L <5.0
2.9 O 0
110-75-8
( ) Mass lb/Day <8.3
Concentration ug/L <1.0
2.10 Chloroform(67-66-3) 0 ❑ O
Mass lb/Day <1.66
Dichlorobromomethane Concentration ug/L <1.0
2.11 75-27-40( ) 0 Mass lb/Day <1.66
Concentration ug/L <1.0
2.12 1,1-dichloroethane(75-34-3) 0 0 0
Mass lb/Day <1.66
Concentration ug/L <1.0
2.13 1,2-dichloroethane(107-06-2) p ❑ 0
Mass lb/Day <1.66
Concentration ug/L <1.0
2.14 1,1-dichloroethylene(75-35-4) 0 ❑ p
Mass lb/Day <1.66
Concentration ug/L <1.0
2.15 1,2-dichloropropane(78-87-5) O ❑ E
Mass lb/Day <1.66
1,3-dichloropropylene Concentration ug/L <1.0
2.16 (542-75-6) 0 0 l7 Mass lb/Day <1.66
Concentration ug/L <1.0
2.17 Ethylbenzene(100-41-4) 0 ❑ p --
Mass lb/Day <1.66
Concentration ug/L <2.0
2.18 Methyl bromide(74-83-9) Q ❑ t]
Mass lb/Day <3.32
Concentration ug/L <2.0
2.19 Methyl chloride(74-87-3) O ❑ 0
Mass lb/Day <3.32
Concentration ug/L <1.0
2.20 Methylene chloride(75-09-2) 0 ❑ O
Mass lb/Day <1.66
1,1,2,2-tetrachloroethane Concentration ug/L <1.0
2.21 (79-34-5) ❑ Mass lb/Day <1.66

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))' OUTFALL 001
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if
Required Believed Believed (specify) Maximum Maximum Average
Number of Term Number
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Tetrachloroethylene Concentration ug/L <1.0
2.22 (127-18-4) 0 0 Mass lb/Day <1.66
Concentration ug/L <1.0
2.23 Toluene(108-88-3) 0 0 p
Mass lb/Day <1.66
1,2-trans-dichloroethylene Concentration ug/L <1.0
2.24
(156-60-5) Mass lb/Day <1.66
1,1,1-trichloroethane Concentration ug/L <1.0
2.25
(71-55-6) Mass lb/Day <1.66
1,1,2-trichloroethane Concentration ug/L <1.0
2.26
(79-00-5) Mass lb/Day <1.66
Concentration ug/L <1.0
2.27 Trichloroethylene(79-01-6) 0 0 0
Mass lb/Day <1.66
Concentration ug/L <1.0
2.28 Vinyl chloride(75-01-4) 0 ❑ 0 <1.66
Mass lb/Day
Section 3.Organic Toxic Pollutants(GC/MS Fraction-Acid Components)
Concentration ug/L <1.6
3.1 2-chlorophenol(95-57-8) 0 0 0
Mass lb/Day <2.66
2,4-dichlorophenol Concentration ug/L <1.6
3.2 (120-83-2) 0 ❑ 0 Mass lb/Day <2.66
2,4-dimethylphenol Concentration ug/L <1.6
3.3 (105-67-9) 0 0 0 Mass lb/Day <2.66
3.4
4,6-dinitro-o-cresol Concentration ug/L <8.0
(534-52-1) 0 ❑ 0 Mass lb/Day <13.3
Concentration ug/L <8.0
3.5 2,4-dinitrophenol(51-28-5) 0 0 0
Mass lb/Day <13.3

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS, CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average Analyses
Discharge Discharge Discharge Value
(required) (if available) (if available)
2-nitrophenol Concentration ug/L <3.2
3.6 0 ❑ o
(88-75-5) Mass lb/Day <5.31
4-nitrophenol Concentration ug/L <8.0
3.7 100-02-7
( ) 0 Mass lb/Day <13.3
p-chloro-m-cresol Concentration ug/L <1.6
3.8 0 ❑ O
(59-50-7) Mass lb/Day <2.66
Pentachlorophenol Concentration ug/L <8.0
3.9 87-86-5
( ) ❑ Mass lb/Day <13.3
Phenol Concentration mg/L <0.0050
3.10
❑ ❑ El
(108-95-2) Mass lb/Day <8.3
2,4,6-trichlorophenol Concentration ug/L <1.6
3.11
(88-05-2) LI ❑ Mass lb/Day <2.66
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Acenaphthene Concentration ug/L <1.6
4.1 83-32-9
( ) ❑ ❑ Mass lb/Day <2.66
Acenaphthylene Concentration ug/L <1.6
4.2 208-96-80( ) 0 Mass lb/Day <2.66
Concentration ug/L <1.6
4.3 Anthracene(120-12-7) ❑ ❑ p
Mass lb/Day <2.66
Concentration ug/L <8.0
4.4 Benzidine(92-87-5) ❑ ❑ p
Mass lb/Day <13.3
Benzo(a)anthracene Concentration ug/L <1.6
4.5 56-55-3
( ) 0 ❑ Mass lb/Day <2.66
Benzo(a)pyrene Concentration ug/L <1.6
4.6
0 0 ID
(50-32-8)
Mass lb/Day <2.66

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
CAS Number,if available) Testing Long-
(and
(specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
3,4-benzofluoranthene Concentration ug/L <1.6
4.7
(205-99-2) Mass lb/Day <2.66
Concentration ug/L <1.6
4.8 Benzo(ghi)perylene(191-24-2) ❑ 0 El
Mass lb/Day <2.66
4.9
Benzo(k)fluoranthene(207-08- Concentration ug/L <1.6
9) 0 0 Mass lb/Day <2.66
Bis(2-chloroethoxy)methane Concentration ug/L <1.6
4.10 111-91-1
( ) 0 0 Mass lb/Day <2.66
4.11
Bis(2-chloroethyl)ether(111-44- Concentration ug/L <1.6
4) 0 0 Mass lb/Day <2.66
Bis(2-chloroisopropyl)ether Concentration ug/L <1.6
4.12 102-80-1
( ) 0 0 Mass lb/Day <2.66
Bis(2-ethylhexyl)phthalate(117- Concentration ug/L <8.0
4.13 81 7
0 0 Mass lb/Day <13.3
4-bromophenyl phenyl ether(101 Concentration ug/L <1.6
4.14 553) 0 0 0
Mass lb/Day <2.66
Concentration ug/L <1.6
4.15 Butyl benzyl phthalate(85-68-7) 0 0 0 '-
Mass lb/Day <2.66
Concentration ug/L <1.6
4.16 2-chloronaphthalene(91-58-7) 0 0 p
Mass lb/Day <2.66
4-chlorophenyl phenyl ether Concentration ug/L <1.6
4.17 (7005-72-3)
Mass lb/Day <2.66
Concentration ug/L <1.6
4.18 Chrysene(218-01-9) 0 0 0
Mass lb/Day <2.66
Dibenzo(a,h)anthracene(53-70-
4.19 Concentration ug/L <1.6
3) � � � Mass lb/Day <2.66

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
CAS Number,if Testing Long-
(and
Re Required (specify) Maximum Maximum Average Number
available) q Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2-dichlorobenzene Concentration ug/L <1.0
4.20 g5-50-1
( ) 0 � U Mass lb/Day <1.66
1,3-dichlorobenzene Concentration ug/L <1.0
4.21 (541-73-1
) Mass lb/Day <1.66
1,4-dichlorobenzene Concentration ug/L <1.0
4.22 (106-46-7) Mass lb/Day <1.66
3,3-dichlorobenzidine Concentration ug/L <8.0
4.23 D p 2
(91-94-1) Mass lb/Day <13.3
Diethyl phthalate Concentration ug/L <1.6
4.24 ❑ p CI
(84-66-2) Mass lb/Day <2.66
Dimethyl phthalate Concentration ug/L <1.6
4.25 131-11-3
( ) � 0 0 Mass lb/Day <2.66
Di-n-butyl phthalate Concentration ug/L <1.6
4.26 84-74-2
( ) Mass lb/Day <2.66
2,4-dinitrotoluene Concentration ug/L <3.2
4.27 121-14-2
( ) � � 0 Mass lb/Day <5.31
2,6-dinitrotoluene Concentration ug/L <3.2
4.28 606-20-2)
( Mass lb/Day <5.31
Di-n-octyl phthalate Concentration ug/L <1.6
4.29 117-84-0
( ) Mass lb/Day <2.66
1,2-Diphenylhydrazine Concentration ug/L <1.6
4.30 (as azobenzene)(122-66-7)
� Mass lb/Day <2.66
4.31 Fluoranthene Concentration ug/L <1.6
(206 44-0) 0 0 2Mass lb/Day <2.66
4.32 Fluorene Concentration ug/L <1.6
� � t]
(86-73-7) Mass lb/Day <2.66

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter TestingUnits Long-Term Long
(and CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
4.33 Hexachlorobenzene Concentration ug/L <1.6
(118-74-1) 0 0 0Mass lb/Day <2.66
Hexachlorobutadiene Concentration ug/L <1.6
4.34 (87-68-3) ❑ 0 0
Mass lb/Day <2.66
Hexachlorocyclopentadiene Concentration ug/L <8.0
4.35 (77-47-4
) Mass lb/Day <13.3
Hexachloroethane Concentration ug/L <1.6
4.36 p p p
(67-72-1) Mass lb/Day <2.66
Indeno(1,2,3-cd)pyrene Concentration ug/L <1.6
4.37 (193-39-5
) Mass lb/Day <2.66
Isophorone Concentration ug/L <1.6
4.38 (78-59-1
) Mass lb/Day <2.66
Naphthalene Concentration ug/L <1.6
4.39 (91-20-3)
Mass lb/Day <2.66
Nitrobenzene Concentration ug/L <1.6
4.40 p p
(98 95 3) Mass lb/Day <2.66
N-nitrosodimethylamine Concentration ug/L <1.6
4.41 (62-75-9) � p OMass lb/Day <2.66
4.42 N-nitrosodi-n-propylamine Concentration ug/L <1.6
(621-64-7) 0 0 Mass lb/Day <2.66
N-nitrosodiphenylamine Concentration ug/L <1.6
4.43 (86-30-6) Mass lb/Day <2.66
Phenanthrene Concentration ug/L <1.6
4.44 p p
(85-01-8) Mass lb/Day <2.66
Pyrene Concentration ug/L <1.6
4.45 p p
(129-00-0) Mass lb/Day <2.66

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2,4-trichlorobenzene Concentration ug/L <1.6
4.46 p
(120-821) Mass lb/Day <2.66
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
5.1
Aldrin Concentration
(309-00-2) C O I7Mass
a-BHC Concentration
5.2 (319 84-6) ❑ ❑ El
Mass
R-BHC Concentration
5.3 (319-85-7) ❑ ❑ C
Mass
y-BHC Concentration
5.4 (58-89-9) C ❑ O
Mass
b-BHC Concentration
5.5 (319-86-8) C ❑ C Mass
Chlordane Concentration
5.6 (57-74-9) C ❑ M
Mass
4,4'-DDT Concentration
5.7 (50 29 3) ❑ C
Mass
4,4'-DDE Concentration
5.8 (72-55-9) � ❑ C Mass
4,4'-DDD Concentration
5.9 (72-54-8) 0 ❑ C Mass
Dieldrin Concentration
5.10 0 ❑ 0
(60-57-1) Mass
a-endosulfan Concentration
5.11 (115-29-7) � ❑ C Mass

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFACE 001
Presence or Absence Effluent Intake
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if {specify} Maximum Maximum Average Number
available Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
5.12 R-endosulfan Concentration
(115-29-7) U U t7 Mass
Endosulfan sulfate Concentration
5.13 (1031-07-8) U U t] Mass
5.14 Endrin Concentration
(72-20-8) U 0 0 Mass
5.15 Endrin aldehyde Concentration
(7421-93-4) U U U Mass
5.16 Heptachlor Concentration
(76-44-8) U U U Mass
Heptachlor epoxide Concentration
5.17 (1024-57-3) U U U Mass
PCB-1242 Concentration ug/L <0.40
5.18 53469-21-9
( ) Mass lb/Day <0.664
PCB-1254 Concentration ug/L <0.40
519
(11097-69-1) U U U Mass lb/Day <0.664
PCB-1221 Concentration ug/L <0.40
5.20 11104-28-2
( ) Mass lb/Day <0.664
PCB-1232 Concentration ug/L <0.40
5.21 11141-16-5
( ) Mass lb/Day <0.664
PCB-1248 Concentration ug/L <0.40
5.22 (12672-29-6)
Mass lb/Day <0.664
PCB-1260 Concentration ug/L <0.40
5.23 11096-82-5
( ) Mass lb/Day <0.664
5.24 PCB-1016 Concentration ug/L <0.40
(12674-11-2) Mass lb/Day <0.664
I

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing
(and CAS Number, if Required (specify) Maximum Maximum Average Long- Number
available) 4 Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
5.25
Toxaphene Concentration
(8001-35-2) O 0 0 Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Presence or AbsenceI Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if available) (specify) Maximum Maximum Average Long- Number
Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
O Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
Bromide Concentration mg/L <0.1
1. ❑ ❑
(24959-67-9) Mass lb/Day <166
Chlorine,total Concentration mg/L <0.028
2. residual n ❑
Mass lb/Day <46.5
Concentration <25.0
3. Color n n
Mass
Concentration CFU/100mL 10
4. Fecal Coliform n ❑
Mass lb/Day
Fluoride Concentration mg/L <0.1
5. (16984-48-8)
❑ ❑ Mass lb/Day <166
Concentration mg/L 0.090
6. Nitrate-nitrite ❑ El
Mass lb/Day 149
Nitrogen, total Concentration mg/L 0.19
7 (as N)
organicEl ❑
Mass lb/Day 315.4
Concentration mg/L <5
8. Oil and Grease ❑ ❑
Mass lb/Day <8300
Phosphorus(as P), Concentration mg/L <0.050
9. total(7723-14-0) ❑ ❑ Mass lb/Day <83
Sulfate(as SO4) Concentration mg/L 4.0
10. (14808-79-8) n ❑ Mass lb/Day 6640
Concentration mg/L <1.0
11. Sulfide (as S) ❑ ❑ Mass lb/Day <1660

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average Analyses
Discharge Discharge Discharge Value
(required) (if available) (if available)
12 Sulfite(as S03) Concentration mg/L 2.5
(14265 45 3) n n Mass lb/Day 4150
Concentration mg/L 0.28
13. Surfactants n n
Mass lb/Day 464.8
14. Aluminum,total Concentration mg/L 0.258
(7429-90-5) n ❑ Mass lb/Day 428
15. Barium, total Concentration mg/L 0.014
(7440-39-3) ❑ n Mass lb/Day 23.2
Boron, total Concentration mg/L <0.05
16.
(7440-42-8) � LI Mass lb/Day <83
17 Cobalt,total Concentration ug/L <1
(7440-48-4) n n Mass lb/Day <1.66
Iron, total Concentration mg/L 0.366
18.
(7439-89-6) n n Mass lb/Day 608
Magnesium, total Concentration mg/L 2.07
19
(7439-95-4) n n Mass lb/Day 3440
20 Molybdenum, total Concentration ug/L <1
(7439-98-7) ❑ n Mass lb/Day <1.66
21 Manganese, total Concentration mg/L 0.041
(7439-96-5) ❑ n Mass lb/Day 68.1
Tin,total Concentration mg/L <0.01
22.
(7440-31-5) n n Mass lb/Day <16.6
23 Titanium, total Concentration mg/L 0.009
n n
(7440-32-6) Mass lb/Day 14.9

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
-
(and CAS Number, if (specify) Maximum Maximum Average Long Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
24. Radioactivity
Concentration
Alpha,total D D
Mass
Concentration
Beta,total ❑ D
Mass
Concentration
Radium,total 0 D
Mass
Concentration
Radium 226, total 0 D
Mass

This page t yin entionall left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
1 Asbestos ❑ a
2. Acetaldehyde ❑ El
3. Allyl alcohol ❑ El
4_ Allyl chloride ❑
5. Amyl acetate ❑ 0
6. Aniline ❑ El
7. Benzonitrile 0 O
8. Benzyl chloride ❑ 17
9. Butyl acetate El 0
10. Butylamine ❑ 0
11. Captan ❑ 13
12. Carbaryl ❑ 0]
13 Carbofuran ❑ 0]
14. Carbon disulfide 0
15. Chlorpyrifos ❑ 01
16. Coumaphos ❑ 01
17. Cresol 0 o
18. Crotonaldehyde El 17
19. Cyclohexane 0 o

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
20. 2,4-D (2,4-dichlorophenoxyacetic acid) El u
21. Diazinon rl El
22. Dicamba Cl C
23. Dichlobenil ❑ E
24. Dichlone ❑ CI I
25. 2,2-dichloropropionic acid ❑ CI
26. Dichlorvos ❑ Ill
27. Diethyl amine El CI
28 Dimethyl amine ❑ El
29. Dintrobenzene El CI
30. Diquat ❑ u
31. Disulfoton El CI
32. Diuron ❑ 0
33. Epichlorohydrin El o
34. Ethion ❑ CI
35. Ethylene diamine ❑ CI
36. Ethylene dibromide ❑ CI
37. Formaldehyde El CI
38. Furfural ❑ 0

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS E40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
39. Guthion ❑ 0]
40. Isoprene ❑ U
41. Isopropanolamine ❑ o
42. Kelthane ❑ o
43. Kepone ❑
44. Malathion ❑ 0
45. Mercaptodimethur ❑ o
46. Methoxychlor ❑ o
47. Methyl mercaptan ❑ o
48. Methyl methacrylate ❑ o
49. Methyl parathion ❑ U
50. Mevinphos ❑ ❑
51. Mexacarbate ❑ o
52. Monoethyl amine ❑ o
53. Monomethyl amine ❑ o
54. Naled ❑
55. Naphthenic acid ❑ o
56. Nitrotoluene ❑ o
57 Parathion ❑

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS (40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge (specify units)
Believed Believed
Present Absent
58. Phenolsulfonate ❑ p
59. Phosgene ❑ p
60. Propargite ❑
61. Propylene oxide ❑ p
62. Pyrethrins O t7
63. Quinoline ❑ ❑
64. Resorcinol ❑ p
65. Strontium ❑ p
66. Strychnine ❑
67. Styrene ❑ p
2,4,5-T(2,4,5- ❑ O
68. trichlorophenoxyacetic acid)
69. TDE(tetrachlorodiphenyl ethane) ❑ p
70 2,4,5-TP[2-(2,4,5-trichlorophenoxy) ❑ rl
propanoic acid]
71. Trichlorofon ❑ p
72. Triethanolamine ❑ O
73. Triethylamine ❑ p
74. Trimethylamine ❑ p
75. Uranium ❑ O
76. Vanadium ❑ p1

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 001
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
77. Vinyl acetate ❑
78. Xylene ❑ O
79. Xylenol ❑
80. Zirconium ❑ p
' Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant
parameters or required under 40 CFR chapter I, subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE E. 2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD)(40 CFR 122.21(g)(7)(viii)) OUTFALL 001
TCDD Presence or Absence
Congeners (check one)
Pollutant Used or - Results of Screening Procedure
Believed Believed
Manufactured Present Absent
2,3,7,8-TCDD ❑ ❑ El
'Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under
40 CFR chapter I, subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
Form U.S. Environmental Protection Agency
2C et EPA Application for NPDES Permit to Discharge Wastewater
EXISTING MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURE
NPDES OPERATIONS
SECTION 1. OSTFALL LOCATION (40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below.
Outfall
Receiving Water Name Latitude Longitude
Number
J
002 Catawba River 35.175 81.005556
O
SECTION 2. LINE DRAWING (40 CFR 122.21(g)(2))
2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a
m • water balance? (See instructions for drawing requirements. See Exhibit 2C-1 at end of instructions for
� c
example.)
0
El Yes ❑ No
SECTION 3. AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1, provide average flow and treatment information. Add
additional sheets if necessary.
**Outfall Number** 002
Operations Contributing to Flow
Operation Average Flow
m
Ash basin discharge 18.6 mgd
mgd
mgd
a)
mgd
Treatment Units
Description Final Disposal of Solid or
Code from Liquid Wastes Other Than
(include size, flow rate through each treatment Table 2C-1 q
unit, retention time, etc.) by Discharge
chemical coagulation, settling,
neutralization 2D, 2K
ion exchange, surface water discharge 1 U

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
3.1 **Outfall Number**
cont. Operations Contributing to Flow
Operation Average Flow
mgd
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Liquid Wastes Other Than by
unit, retention time, etc.) Table 2C-1 Discharge
U
m
a�
I-
**Outfall Number**
Operations Contributing to Flow
Operation Average Flow
mgd
,
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Liquid Wastes Other Than by
Table 2C-1
unit, retention time, etc.) Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
E
m L ❑ Yes ❑ No SKIP to section 4.
�' as
3.3 Have you attached a list that identifies each user of the treatment works?
0 Yes 0 No

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 4. INTERMITTENT FLOWS (40 CFR 122.21(g)(4))
Except for storm runoff, leaks, or spills, are any discharges described in Sections 1 and 3 intermittent or
4.1 seasonal?
❑ Yes ❑ No 4 SKIP to section 5
4.2 Provide information on intermittent or seasonal flows for each applicable outfall. Attach add. pages if necessary
Outfall Frequency Flow Rate
Operation
Number (List) Average 1 Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
days/ months/
t LL
week year mgd mgd days
+' d 002 week myears/ mgd mgd days
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days! months! mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week ear
SECTION 5. PRODUCTION (40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs) promulgated by EPA under Section 304 of the CWA apply to your facility'?
❑ Yes ❑ No 4 SKIP to Section 6.
5.2 Provide the following information on applicable ELGs.
w ELG Category ELG Subcategory Regulatory Citation
w
I Power Generation
steam electric 40CFR 423
Are any of the applicable ELGs expressed in terms of production (or other measure of operation)?
c 5.3 ❑ Yes ❑ No y SKIP to Section 6.
0
Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
E Outfall Quantity per Unit of
Operation, Product, or Material
a Number Day Measure
a
N
f6
m
= 5.4
0
0
0
L
d

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 6.IMPROVEMENTS (40 CFR 122.21(g)(6))
Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing, upgrading,or operating wastewater treatment equipment or practices or any other environmental
6.1 programs that could affect the discharges described in this application?
❑Yes El No SKIP to Item 6.3.
m 6.2 Briefly identify each applicable project in the table below.
CDm Brief Identification Affected Final Compliance Dates
R 'a_
and Description of Outfalls Source(s)of
(list outfall Discharge
° Project number) Required Projected
E
Have you attached sheets describing any additional water pollution control programs(or other environmental
6.3 projects that may affect your discharges)that you now have underway or planned?(optional item)
0 Yes ❑ No El Not Applicable
SECTION 7.EFFLUENT AND INTAKE CHARACTERISTICS (40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn,the tables
you must complete.Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for
7.1 any of your outfalls?
❑Yes El No SKIP to Item 7.3.
If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the
s 7.2 application.
Outfall Number: Outfall Number: Outfall Number:
R
Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not
a 7.3 been requested and attached the results to this application package?
q PP� P 9
❑Yes 0 No A Waiver has been requested from my NPDES permitting authority for all pollutants at all
outfalls.
Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry
7.4 categories listed in Exhibit 2C-3?(See end of instructions for exhibit.)
O Yes ❑ No SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
ElYes No
List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)
7.6 identified in Exhibit 2C-3.
Primary Industry Category Required GC(MS Fraction(s)
(Check applicable Boxes)
Steam electric power plants El Volatile 0 Acid ❑ Base/Neutral ❑ Pesticide
❑Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the GC/MS
7.7 fractions checked in Item 7.6?
El Yes ❑No
Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
7.8 where testing is not required?
El Yes ❑No
Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
7.9 required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
O Yes ❑No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
0 Yes Note that you qualify at the top of Table B,then SKIP to item 7.12 I7 No
Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have determined
7.11 testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,pollutants you have
indicated are"Believed Present"in your discharge?
G U I ❑Yes ❑No
y Table C.Certain Conventional and Non-Conventional Pollutants
•L
d
7 12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed on Table C for
coall outfalls?
l7 Yes ❑ Na
f4
Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
73 7.13 indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
rs "Believed Present"?
El Yes ❑No
W
Table D.Certain Hazardous Substances and Asbestos
7.14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
O Yes ❑No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged and
(2)by providing quantitative data,if available?
El Yes ❑No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you know
or have reason to believe that TCDD is or may be present in the effluent?
0 Yes Complete Table E El No SKIP to section 8
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑Yes ❑No
SECTION 8. USED OR MANUFACTURED TOXICS (40 CFR 122.21(g)(9))
o) 8.1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as an
)7( intermediate or final product or byproduct?
tJ Yes t7 No SKIP to section 9
8.2 List the pollutants below. _
c1. See attachment 5 4. 7.
2
0 2. 5. 8.
a
d
3. 6. 9.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 9. BIOLOGICAL TOXICITY TESTS (40 CFR 122.21(g)(11))
Do you have any knowledge or reason to believe that any biological test for acute chronic toxicity has been made
9.1 within the last three years on (1)any of your discharges or(2) on a receiving water in relation to your discharge?
[] Yes ❑ No SKIP to section 10.
9.2 Identify the tests and their purposes below.
Test(s) Purpose of Test(s) Submitted to NPDES Date Submitted
Permitting Authority?
76
CJ Yes ❑ No
Whole Effluent Toxicity Chronic Toxicity quarterly, monthly
o -
❑ Yes ❑ No
❑ Yes ❑ No
SECTION 10. CONTRACT ANALYSES (40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in section 7 performed by a contract laboratory or consulting firm?
Yes ❑ No SKIP to section 11.
Provide information to each contract laboratory or consulting firm below.
10.2 Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
Duke Energy Analytic Environmental Testing
Name of Laboratory/firm
Pace Laboratory Solutions
Laboratory address PO Box 7565, Asheville NC
13339 Hagers Ferry Road 28802
UPhone number 9808755275
Nitrate-Nitrite—N,Aroclor 1016,Aroclor 1221, Sulfate,Fluoride,Bromide,Zinc(Zn),Titanium
Aroclor 1232,Aroclor 1242,Aroclor 1248, (Ti),Tin(Sn),Manganese(Mn),Magnesium
Aroclor 1254,Aroclor 1260,Phosphorus, (Mg),Iron(Fe),Boron(B),Barium(Ba),
Acenaphthene,Acenaphthylene,Anthracene, Aluminum(Al),Thallium(TI)Low Level,Silver
Pollutant(s)analyzed Benzidine,Benzo(a)anthracene, (Ag),Selenium(Se),Nickel(Ni),Molybdenum
Benzo(a)pyrene,Benzo(b)fluoranthene, (Mo),Lead(Pb),Copper(Cu),Cobalt(Co),
Benzo(g,h,i)perylene,Benzo(k)fluoranthene,4- Chromium(Cr),Cadmium(Cd)Low Level,
Bromophenyl phenyl ether,Butyl benzyl Beryllium(Be),Arsenic(As),Antimony(Sb),
phthalate,bis(2-Chloro-l-methylethyl)ether,4- TSS,Oil and Grease
SECTION 11. ADDITIONAL INFORMATION (40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
° 0 Yes 0 No SKIP to section 12.
11.2 List the information requested and attach it to this application.
1. 3.
2. 4.
3. 5.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 12. CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a) and (d))
12.1 In Column 1 below, mark the sections of Form 2C that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
O Section 1:Outfall Location O w/attachments
O Section 2:Line Drawing O w/line drawing 0 w/additional attachments
0 Section 3:Average Flows and Treatment O w/attachments ❑ w/list of each user of privately
owned treatment works
O Section 4:Intermittent Flows 0 w/attachments
❑ Section 5:Production ❑ w/attachments
❑ Section 6:Improvements 0 w/attachments El w/optional additional additional s
describing any pollution
0 w/request for a waiver and 0 w/explanation for identical outfalls
d
d ❑ w/small business exemption 0 w/other attachments
o ❑ Section 7:Effluent and Intake O w/Table A
O w/Table B
co O w/Table C 0 w/Table D
47.
0 w/Table E 0 w/analytical results as an attachment
m
❑ Section 8:Used or Manufactured Toxics ❑ w/attachments
ca
• ❑ Section 9:Biological Toxicity Tests 0 w/attachments
❑ Section 10:Contract Analyses ❑ w/attachments
O Section 11:Additional Information O w/attachments
O Section 12:Checklist and Certification Statement O w/attachments
12.2 Certification Statement
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 fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Jeffrey Flanagan General Manager III
Signatur\ Date signed
/16,77-0Z-3

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE A. CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS (40 CFR 122.21(g)(7)(iii))' OUTFALL 002
Effluent Intake(optional)
Pollutant Maximum Maximum Long-Term Long Term
Waiver Daily Monthly Average Daily Number of Average Number of
Requested Units Discharge Discharge Discharge Analyses Value Analyses
(if applicable) (specify) (required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/L <2.0
1 (BOD5) ❑ Mass lb/Day <6.96
Concentration mg/L <20
2. Chemical oxygen demand (COD) ❑
Mass lb/Day <69.6
Concentration mg/L 1.1
3. Total organic carbon (TOC) ❑
Mass lb/Day 3.83
Concentration mg/L 2.63
4. Total suspended solids (TSS) ❑
Mass lb/Day <9.16
Concentration mg/L <0.10
5. Ammonia (as N) ❑
Mass lb/Day <0.348
6. Flow n Rate MGD 0.417
Temperature (winter) ❑ °C °C 19.2
7.
Temperature (summer) ❑ °C °C 19.2
pH (minimum) ❑ Standard Units s.u. 7.1
8.
pH (maximum) ❑ Standard Units s.u. 7.1

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
1 Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter TestingUnits Long-Term Lon
g-
(and CAS Number,if Required Believed Believed (specify) Maximum Maximum Average Number of Term Number
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2
through 5 of this table.Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Concentration ug/L <1
1.1 Antimony,total(7440-36-0) p 0 El
Mass lb/Day <0.00348
Concentration ug/L <1
1.2 Arsenic,total(7440-38-2) 0 ❑ IDMass lb/Day <0.00348
Concentration ug/L <1
1.3 Beryllium,total(7440-41-7) C ❑ 0Mass lb/Day <0.00348
Concentration ug/L <0.1
1.4 Cadmium,total(7440-43-9) 0 ❑ O
Mass lb/Day <0.000348
Concentration ug/L <1
1.5 Chromium,total(7440-47-3) O ❑ O
Mass lb/Day <0.00348
Concentration ug/L <2
1.6 Copper,total(7440-50-8) p ❑ 0Mass lb/Day <0.00696
Concentration ug/L <1
1.7 Lead,total(7439-92-1) p 0 p
Mass lb/Day <0.00348
Concentration ng/L 6.63
1.8 Mercury,total(7439-97-6) l7 O ❑
Mass lb/Day 0.0000231
Concentration ug/L 1.43
1.9 Nickel,total(7440-02-0) p p 0
Mass lb/Day 0.00498
Concentration ug/L 7.72
1.10 Selenium,total(7782-49-2) o o 0
Mass lb/Day 0.0269
Concentration ug/L <1
1.11 Silver,total(7440-22-4) p ❑ p
Mass lb/Day <0.00348

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if available) (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Concentration ug/L 0.345
1.12 Thallium,total(7440-28-0) p p ❑
Mass lb/Day 0.0012
Concentration mg/L <0.005
1.13 Zinc,total(7440-66-6) ❑ ❑ IDMass lb/Day <0.0174
Concentration mg/L <0.010
1.14 Cyanide,total(57-12-5) p ❑ p
Mass lb/Day <0.0348
Concentration ug/L <1.6
1.15 Phenols,total O ❑ 1D
Mass lb/Day <0.00557
Section 2.Organic Toxic Pollutants(GC/MS Fraction-Volatile Compounds)
Concentration ug/L <5.0
2.1 Acrolein(107-02-8) C 0 p
Mass lb/Day <0.0174
Concentration ug/L <5.0
2.2 Acrylonitrile(107-13-1) p ❑ p
Mass lb/Day <0.0174
Concentration ug/L <1.0
2.3 Benzene(71-43-2) O ❑ CI
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.4 Bromoform(75-25-2) p 0 GI
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.5 Carbon tetrachloride(56-23-5) El ❑ E
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.6 Chlorobenzene(108-90-7) p ❑ p
Mass lb/Day <0.00348
Chlorodibromomethane Concentration ug/L <1.0
2.7 (124-48-1) 0 ❑ 0 Mass lb/Day <0.00348
Concentration ug/L <2.0
2.8 Chloroethane(75-00-3) p p El
Mass lb/Day <0.00696

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if available) (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-chloroethylvinyl ether Concentration ug/L <5.0
2.9 (110-75-8) 0 0 0 Mass lb/Day <0.0174
Concentration ug/L <1.0
2.10 Chloroform(67-66-3) 0 0 0
Mass lb/Day <0.00348
Dichlorobromomethane Concentration ug/L <1.0
2.11
(75-27-4) ❑ Mass lb/Day <0.00348
Concentration ug/L <1.0
2.12 1,1-dichloroethane(75-34-3) 0 ❑ O
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.13 1,2-dichloroethane(107-06-2) p ❑ p
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.14 1,1-dichloroethylene(75-35-4) O 0 0
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.15 1,2-dichloropropane(78-87-5) 0 0 0
Mass lb/Day <0.00348
1,3-dichloropropylene Concentration ug/L <1.0
2.16 0 ❑ 0
(542-75-6) Mass lb/Day <0.00348
Concentration ug/L <1.0
2.17 Ethylbenzene(100-41-4) 3 0 0
Mass lb/Day <0.00348
Concentration ug/L <2.0
2.18 Methyl bromide(74-83-9) 0 0 0Mass lb/Day <0.00696
Concentration ug/L <2.0
2.19 Methyl chloride(74-87-3) p o 0
Mass lb/Day <0.00696
Concentration ug/L <1.0
2.20 Methylene chloride(75-09-2) 0 ❑ Mass lb/Day <0.00348
1,1,2,2-tetrachloroethane Concentration ug/L <1.0
2.21 (79-34-5) ❑ Mass lb/Day <0.00348

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Lon
(and CAS Number,if (specify) Maximum Maximum Average g Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Tetrachloroethylene Concentration ug/L <1.0
2.22 (127-18-4) 0 0 0
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.23 Toluene(108-88-3) ❑ ❑ 0
Mass lb/Day <0.00348
1,2-trans-dichloroethylene Concentration ug/L <1.0
2.24
❑ CI
(156-60-5) Mass lb/Day <0.00348
1,1,1-trichloroethane Concentration ug/L <1 0
225 i
(71-55-6) ❑ ❑ Mass lb/Day <0.00348
1,1,2-trichloroethane Concentration ug/L <1.0
226 El
ID(79-00-5) Mass lb/Day <0.00348
Concentration ug/L <1.0
2.27 Trichloroethylene(79-01-6) ❑ ❑ p
Mass lb/Day <0.00348
Concentration ug/L <1.0
2.28 Vinyl chloride(75-01-4) ❑ ❑ 0
Mass lb/Day <0.00348
Section 3.Organic Toxic Pollutants(GC/MS Fraction-Acid Components)
Concentration ug/L <1.6
3 1 2-chlorophenol(95-57-8) ❑ ❑ 0 •
Mass lb/Day <0.00557
2,4-dichlorophenol Concentration ug/L <1.6
-
3.2 (120-83-2) 0 0 O Mass lb/Day <0.00557
2,4-dimethylphenol Concentration ug/L <1.6
3.3 (105-67-9) 0 0 ❑ '
Mass lb/Day <0.00557
4,6-dinitro-o-cresol Concentration ug/L <8.0
34 0 0 O
(534-52-1) Mass lb/Day <0.0278
Concentration ug/L <8.0
3 5 2,4-dinitrophenol(51-28-5) 0 ❑ CI
Mass lb/Day <0.0278

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number, if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-nitrophenol Concentration ug/L <3.2
3.6 O ❑ ❑
(88-75-5) Mass lb/Day <0.0111
4-nitrophenol Concentration ug/L <8.0
3.7 (100-02-7) 0 CI
Mass lb/Day <0.0278
p-chloro-m-cresol Concentration ug/L <1.6
3.8 El ❑ 0
(59-50-7) Mass lb/Day <0.00557
Pentachlorophenol Concentration ug/L <8.0
3.9 87-86-50( ) ❑ Mass lb/Day <0.0278
Phenol Concentration mg/L <0.0050
3.10
❑ CI ❑
(108-95-2) Mass lb/Day <0.0174
2,4,6-trichlorophenol Concentration ug/L <1.6
3.11 88-05-2)
( ❑ ❑ Mass lb/Day <0.00557
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Acenaphthene Concentration ug/L <1.6
4.1 0 0 O
(83-32-9) Mass lb/Day <0.00557
Acenaphthylene Concentration ug/L <1.6
4.2 208-96 8
( ) ❑ ❑ Mass lb/Day <0.00557
Concentration ug/L <1.6
4.3 Anthracene(120-12-7) ❑ ❑ 0
Mass lb/Day <0.00557
Concentration ug/L <8.0
4.4 Benzidine(92-87-5) ❑ ❑ 0
Mass lb/Day <0.0278
Benzo(a)anthracene Concentration ug/L <1.6
4.5 56-55-3
( ) ❑ ❑ Mass lb/Day <0.00557
Benzo(a)pyrene Concentration ug/L <1.6
4.6 (50-32-8) 0 0 0
Mass lb/Day <0.00557

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
and CAS Number,if available) Testing Lon
( (specify) Maximum Maximum Average g- Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
3,4-benzofluoranthene Concentration ug/L <1.6
4.7
(205-99-2) Mass lb/Day <0.00557
Concentration ug/L <1.6
4.8 Benzo(ghi)perylene(191-24-2) 0 ❑ ID
Mass lb/Day <0.00557
4.9
Benzo(k)fluoranthene(207-08- Concentration ug/L <1.6
9) � � C Mass lb/Day <0.00557
Bis(2-chloroethoxy)methane Concentration ug/L <1.6
4.10 111-91-1
( ) � � C Mass lb/Day <0.00557
4.11
Bis(2-chloroethyl)ether(111-44- Concentration ug/L <1.6
4) � � C Mass lb/Day <0.00557
Bis(2-chloroisopropyl)ether Concentration ug/L <1.6
4.12 102-80-1
( ) � � C Mass lb/Day <0.00557
Bis(2-ethylhexyl)phthalate(117- Concentration ug/L <8.0
4.13 81 7
� 0 0 Mass lb/Day <0.0278
4-bromophenyl phenyl ether(101 Concentration ug/L <1.6
4.14 55-3) ❑ ❑
Mass lb/Day <0.00557
Concentration ug/L <1.6
4.15 Butyl benzyl phthalate(85-68-7) ❑ El p
Mass lb/Day <0.00557
Concentration ug/L <1.6
4.16 2-chloronaphthalene(91-58-7) C C C
Mass lb/Day <0.00557
4-chlorophenyl phenyl ether Concentration ug/L <1.6
4.17 7005-72-3
( ) Mass lb/Day <0.00557
Concentration ug/L <1.6
4.18 Chrysene(218-01-9) p C 2
Mass lb/Day <0.00557
Dibenzo(a,h)anthracene(53-70 Concentration ug/L <1.6
419 3) 0 0 C Mass lb/Day <0.00557

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1
1,2-dichlorobenzene Concentration ug/L <1.0
4.20 g5 50 1
( ) ❑ ❑ ❑ Mass lb/Day <0.00348
1,3-dichlorobenzene Concentration ug/L <1.0
4.21 ❑ ❑ E
(541-73-1) Mass lb/Day <0.00348
1,4-dichlorobenzene Concentration ug/L <1.0
4.22 106-46-7
( ) ❑ ❑ Mass lb/Day <0.00348
3,3-dichlorobenzidine Concentration ug/L <8.0
4.23 ❑ ❑ p -
(91-94-1) Mass lb/Day <0.0278
Diethyl phthalate Concentration ug/L <1.6
4.24 ❑ ❑ O
(84-66-2) Mass lb/Day <0.00557
Dimethyl phthalate Concentration ug/L <1.6
4.25 (131-11-3) ❑ ❑ Mass lb/Day <0.00557
Di-n-butyl phthalate Concentration ug/L <1.6
4.26 (84 74 2) ❑ ❑ Mass lb/Day <0.00557
2,4-dinitrotoluene Concentration ug/L <3.2
4.27 121-14-2
( ) ❑ ❑ Mass lb/Day <0.0111
2,6-dinitrotoluene Concentration ug/L <3.2
4.28 606-20-2)
( ❑ ❑ Mass lb/Day <0.0111
Di-n-octyl phthalate Concentration ug/L <1.6
4.29 1 17-84-0
( ) ❑ ❑ U Mass lb/Day <0.00557
1,2-Diphenylhydrazine Concentration ug/L <1.6
4.30 ❑ 0❑
(as azobenzene)(122-66-7) Mass lb/Day <0.00557
Fluoranthene Concentration ug/L <1.6
4.31 206-44-0
( ) ❑ ❑ Mass lb/Day <0.00557
Fluorene Concentration ug/L <1.6
4.32
❑ ❑
(86-73-7)
Mass lb/Day <0.00557

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Hexachlorobenzene Concentration ug/L <1.6
4.33 ❑ ❑ 0
(118-74-1) Mass lb/Day <0.00557
Hexachlorobutadiene Concentration ug/L <1.6
4.34 ❑ ❑ l7
(87-68-3) Mass lb/Day <0.00557
Hexachlorocyclopentadiene Concentration ug/L <8.0
4.35 77-47-4
( ) ❑ ❑ U Mass lb/Day <0.0278
Hexachloroethane Concentration ug/L <1.6
4.36 67 72 1 - __ -
( ) ❑ ❑ 0 Mass lb/Day <0.00557
Indeno(1,2,3-cd)pyrene Concentration ug/L <1.6
4.37 (193-39-5) ❑ ❑ U Mass lb/Day <0.00557
Isophorone Concentration ug/L <1.6
4.38 78 59 1
( ) ❑ ❑ U Mass lb/Day <0.00557
Naphthalene Concentration ug/L <1.6
4.39 ❑ ❑ l7
(91-20-3) Mass lb/Day <0.00557
Nitrobenzene Concentration ug/L <1.6
4.40 (98-95-3) ❑ ❑ l7
Mass lb/Day <0.00557
N-nitrosodimethylamine Concentration ug/L <1.6
4.41 62-75-9
( ) ❑ ❑ Mass lb/Day <0.00557
N-nitrosodi-n-propylamine Concentration ug/L <1.6
4.42 (621-64-7) ❑ ❑ U Mass lb/Day <0.00557
N-nitrosodiphenylamine Concentration ug/L <1.6
4.43 ❑ ❑ 0
(86-30-6) Mass lb/Day <0.00557
Phenanthrene Concentration ug/L <1.6
4.44 85-01-8 CI
( ) ❑ ❑ Mass lb/Day <0.00557
Pyrene Concentration ug/L <1.6
4.45 129-00-0
( ) ❑ ❑ Mass lb/Day <0.00557

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long-
(and
CAS Number, if (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2,4-trichlorobenzene Concentration ug/L <1.6
4.46 120-82-1
( ) ❑ ❑ ❑ Mass lb/Day <0.00557
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Aldrin Concentration
5.1 (309-00-2) ❑ ❑ E Mass
a-BHC Concentration
5.2 ❑ ❑ Ll
(319-84-6) Mass
5.3 R-BHC Concentration
(319-85-7) ❑ ❑ [7 Mass
y-BHC Concentration
5.4 (58 89 9) ❑ ❑ lU Mass
b-BHC Concentration
5.5 (319-86-8) ❑ ❑ E
Mass
Chlordane Concentration
5.6 (57-74-9) ❑ ❑ D Mass
4,4'-DDT Concentration
5.7 (50-29-3) ❑ ❑ ❑
Mass
4,4'-DDE Concentration
5.8 (72-55-9) ❑ ❑ 0 Mass
4,4'-DDD Concentration
5.9 (72-54-8) ❑ ❑ t7 Mass
Dieldrin Concentration
5.10 (60-57-1) ❑ ❑ lU Mass
5.11 o-endosulfan Concentration
❑ ❑ U
(115-29-7) Mass

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long-
(and
CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
512 R-endosulfan Concentration
(115-29-7) ❑ ❑ 0 Mass
Endosulfan sulfate Concentration
5.13 (1031-07-8) ❑ ❑ 0 Mass
Endrin Concentration
5.14 (72 20 8) ❑ ❑ 0 Mass
Endrin aldehyde Concentration
5.15 (7421-93-4) ❑ ❑ C Mass
Heptachlor Concentration
5.16 (76-44-8) ❑ ❑ ID Mass
Heptachlor epoxide Concentration
5.17 (1024-57-3) ❑ ❑ C Mass
PCB-1242 Concentration ug/L <0.40
5.18 53469 21-9 CI
( ) ❑ ❑ Mass lb/Day <0.00139
PCB-1254 Concentration ug/L <0.40
5.19 11097-69-1ID( ) ❑ Mass lb/Day <0.00139
PCB-1221 Concentration ug/L <0.40
5.20 (1 1 1 04-28-2) ❑ ❑ 0 Mass lb/Day <0.00139
PCB-1232 Concentration ug/L <0.40
5.21 (11141-16-5) ❑ ❑ Mass lb/Day <0.00139
PCB-1248 Concentration ug/L <0.40
5.22 (12672-29-6) ❑ ❑ Mass lb/Day <0.00139
PCB-1260 Concentration ug/L <0.40
5.23 (11096-82-5) ❑ ❑ El Mass lb/Day <0.00139
PCB-1016 Concentration ug/L <0.40
5.24 ❑ ❑ B
(12674-11-2) Mass lb/Day <0.00139

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
CAS Number, if Testing Long-
(and
Re Required (specify) Maximum Maximum Average Number
available) q Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Toxaphene Concentration .
5.25
0 LI
(8001-35-2) Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Presence or AbsenceI Effluent Intake
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if available) (specify) Maximum Maximum Average Long- Number
Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
Bromide Concentration mg/L 0.14
1 24959-67-9
( ) El Mass lb/Day 0.487
Chlorine, total Concentration mg/L <0.028
2. residual � El
Mass lb/Day <0.0974
Concentration <25.0
3. Color ❑ n
Mass
Concentration CFU/100mL 7
4. Fecal Coliform n n
Mass lb/Day
Fluoride Concentration mg/L 0.20
5. (16984-48-8) n ❑ Mass lb/Day 0.696
Concentration mg/L 0.10
6. Nitrate-nitrite n n
Mass lb/Day 0.348
Nitrogen, total Concentration mg/L 0.64
7
organic(as N) n ❑ Mass lb/Day 2.23
Concentration mg/L <5
8. Oil and Grease ❑ n
Mass lb/Day <17.4
Phosphorus(as P), Concentration mg/L <0.050
9. total 7723-14-0
( ) ❑ n Mass lb/Day <0.174
10. Sulfate(as SO4) Concentration mg/L 28
(14808 79 8) n ❑ Mass lb/Day 97.4
Concentration mg/L <1.0
11. Sulfide(as S) n n
Mass lb/Day <3.48

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
12 Sulfite(as SO3) Concentration mg/L <2.0
(14265-45-3) ❑ n Mass lb/Day <6.96
Concentration mg/L <0.1
13. Surfactants p n
Mass lb/Day <0.348
14. Aluminum, total Concentration mg/L 0.087
(7429-90-5) n Mass lb/Day 0.303
15. Barium, total Concentration mg/L 0.088
(7440-39-3) [l ❑ Mass lb/Day 0.306
Boron, total Concentration mg/L 0.210
16. (7440-42-8) U D Mass lb/Day 0.731
Cobalt, total Concentration ug/L <1
17.
(7440-48-4) n Mass lb/Day <0.00348
Iron, total Concentration mg/L 0.171
18
(7439-89-6) n ❑ Mass lb/Day 0.595
Magnesium,total Concentration mg/L 4.13
19
(7439-95-4) f�7 Mass lb/Day 14.4
Molybdenum,total Concentration ug/L 9.58
20
(7439-98-7) n ❑ Mass lb/Day 0.0333
Manganese, total Concentration mg/L 0.019
21.
(7439-96-5) U U Mass lb/Day 0.0661
Tin, total Concentration mg/L <0.01
22.
(7440-31-5) ❑ n Mass lb/Day <0.0348
Titanium, total Concentration mg/L <0.005
23
❑ n
(7440-32-6) Mass lb/Day <0.0174

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
24. Radioactivity
Concentration
Alpha,total ❑ 0
Mass
Concentration
Beta,total 0 2
Mass
Concentration
Radium,total El 2
Mass
Concentration
Radium 226,total ❑ 2
Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
1 Asbestos El CI
2. Acetaldehyde ❑ o
3. Allyl alcohol El 0
4. Allyl chloride ❑
5. Amyl acetate El 0
6. Aniline ❑ C7
7. Benzonitrile ❑ 0
8. Benzyl chloride ❑ El
9. Butyl acetate ❑ El
10. Butylamine ❑
11. Captan ❑ El
12. Carbaryl El
13. Carbofuran El El
14. Carbon disulfide El 0
15. Chlorpyrifos ❑ El
16. Coumaphos ❑ El
17. Cresol 0
18. Crotonaldehyde El El
19. Cyclohexane ❑ O

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
20. 2,4-D(2,4-dichlorophenoxyacetic acid) 0 0
21. Diazinon El 0
22. Dicamba ❑ El
23. Dichlobenil El El
24. Dichlone El 0
25. 2,2-dichloropropionic acid El 0
26. Dichlorvos ❑ 0
27. Diethyl amine ❑ 0
28 Dimethyl amine 0 El
29. Dintrobenzene El El
30. Diquat ❑ El
31. Disulfoton El El
32. Diuron El 0
33. Epichlorohydrin El El
34- Ethion ❑ El
35. Ethylene diamine ❑ 0
36. Ethylene dibromide ❑ 0
37- Formaldehyde El 0
38. Furfural 0 El

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS 640 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge (specify units)
Believed Believed
Present Absent
39. Guthion ❑ 0
40. Isoprene El 51
41. Isopropanolamine El El
42. Kelthane El v
43. Kepone ❑ Ed
44. Malathion El CI
45. Mercaptodimethur ❑
46. Methoxychlor El O
47. Methyl mercaptan ❑ o
48. Methyl methacrylate ❑ o
49. Methyl parathion El n
50. Mevinphos ID I]
51. Mexacarbate ❑
52. Monoethyl amine ❑ o
53. Monomethyl amine ❑ o
54- Naled ❑ ID
55. Naphthenic acid El I3
56. Nitrotoluene El 1D
57 Parathion ❑ ID

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS (40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge (specify units)
Believed Believed
Present Absent
58. Phenolsulfonate ❑ p
59. Phosgene ❑ p
60. Propargite ❑ 0
61. Propylene oxide ❑ p
62. Pyrethrins ❑ p
63. Quinoline ❑ 0
64. Resorcinol ❑
65. Strontium ❑
66. Strychnine ❑ p
67. Styrene ❑ El
2,4,5-T(2,4,5- ❑
68. trichlorophenoxyacetic acid)
69. TOE (tetrachlorodiphenyl ethane) ❑ p
70 2,4,5-TP[2-(2,4,5-trichlorophenoxy) ❑ O
propanoic acid]
71. Trichlorofon ❑ p
72. Triethanolamine ❑ p
73. Triethylamine ❑ p
74. Trimethylamine ❑ p
75. Uranium ❑ t7
76. Vanadium ❑ p

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 002
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
77. Vinyl acetate ❑ p
78. Xylene ❑ p
79. Xylenol ❑ p
80. Zirconium ❑ p
Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant
parameters or required under 40 CFR chapter I, subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE E. 2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD)(40 CFR 122.21(g)(7)(viii)) OUTFALL 002
TCDD Presence or Absence
(check one
Pollutant CongenersResults of Screening Procedure
Used or Believed Believed
Manufactured Present Absent
2,3,7,8-TCDD ❑ ❑
'Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under
40 CFR chapter I,subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
Form U.S. Environmental Protection Agency
2C IVEPA EXISTING Application for NPDES Permit to Discharge Wastewater
MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURE
NPDES OPERATIONS
SECTION 1.OSTFALL LOCATION(40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below.
c --
° Outfall
Receiving Water Name Latitude Longitude
Number
J
003 South Fork River 35.189722 81.0125
O
SECTION 2. LINE DRAWING (40 CFR 122.21(g)(2))
a) 2 1 Have you attached a line drawing to this application that shows the water flow through your facility with a
= water balance? (See instructions for drawing requirements. See Exhibit 2C-1 at end of instructions for
c
Es example.)
OYes No
SECTION 3. AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1, provide average flow and treatment information. Add
additional sheets if necessary.
**Outfall Number** 003
Operations Contributing to Flow
To' Operation Average Flow
Miscellaneous once through non-contact
t= 4.5 mgd
c cooling water
mgd
0
li mgd
a>
mgd
Treatment Units
Description Final Disposal of Solid or
Code from Liquid Wastes Other Than
(include size, flow rate through each treatment Table 2CC-1 q
unit, retention time, etc.) by Discharge
surface water discharge 4A

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
**Outfall Number**
3.1
cont. Operations Contributing to Flow
Operation Average Flow
mgd
mgd
mgd
mgd
Treatment Units
d Description Final Disposal of Solid or
(include size, flow rate through each treatment Code from Liquid Wastes Other Than by
unit, retention time, etc.) Table 2C-1 Discharge
U
c
a)
m
**Outfall Number**
Operations Contributing to Flow
Operation Average Flow
a)
L. mgd
w
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Table 2C-1 Liquid Wastes Other Than by
unit, retention time, etc.) Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
aEi ;n ❑ Yes El No SKIP to section 4.
in
3.3 Have you attached a list that identifies each user of the treatment works?
❑ Yes ❑ No

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 4. INTERMITTENT FLOWS (40 CFR 122.21(g)(4))
Except for storm runoff, leaks, or spills, are any discharges described in Sections 1 and 3 intermittent or
4.1 seasonal?
❑ Yes El No 4 SKIP to section 5
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach add. pages if necessary
Outfall Frequency Flow Rate
Operation
Number (List) Average Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
days/ months/ mgd mgd days
week year
003 months/
mgd mgd days
week year
d days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week ear
SECTION 5. PRODUCTION (40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
ID Yes ❑ No y SKIP to Section 6.
5.2 Provide the following information on applicable ELGs.
w ELG Category ELG Subcategory Regulatory Citation
a,
power generation steam electric 40 CFR 423
Are any of the applicable ELGs expressed in terms of production (or other measure of operation)?
= 5'3 ❑ Yes 0 No y SKIP to Section 6.
0
`1; Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
E Outfall Quantity per Unit of
11 Operation, Product, or Material
a Number Day Measure
w ,
N
a4
m 5.4
c ,
0
v
0
v
o
L
a

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 6. IMPROVEMENTS (40 CFR 122.21(g)(6))
Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing, upgrading,or operating wastewater treatment equipment or practices or any other environmental
6.1 programs that could affect the discharges described in this application?
0 Yes Cl No SKIP to Item 6.3.
a Y
c c 6.2 Briefly identify each applicable project in the table below.
m a) Brief Identification Affected Final Compliance Dates
a > Outfalls Source(s)of
o and Description of
ar a (list outfall Discharge
E
Project number) Required Projected
� y
Have you attached sheets describing any additional water pollution control programs(or other environmental
6.3 projects that may affect your discharges)that you now have underway or planned?(optional item)
❑Yes 0 No 0 Not Applicable
SECTION 7.EFFLUENT AND INTAKE CHARACTERISTICS (40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables
you must complete. Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for
7.1 any of your outfalls?
❑Yes 0 No SKIP to Item 7.3.
7.2 If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the
application.
Outfall Number: Outfall Number: Outfall Number:
A
Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not
° 7.3 been requested and attached the results to this application package?
q PP� P 9
0 Yes 0 No A Waiver has been requested from my NPDES permitting authority for all pollutants at all
outfalls.
w Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
7.4 Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry
categories listed in Exhibit 2C-3?(See end of instructions for exhibit.)
0 Yes 0 No SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
D Yes ❑No
List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)
7.6 identified in Exhibit 2C-3.
Primary Industry Category Required GC/MS Fraction(s)
(Check applicable Boxes)
Steam electric power plants 0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide
❑Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the GC/MS
7.7 fractions checked in Item 7.6?
O Yes ❑No
7.8 Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
where testing is not required?
I7 Yes ❑No
Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
7.9 required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
O Yes ❑No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
❑Yes Note that you qualify at the top of Table B,then SKIP to item 7.12 0 No
Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have determined
3 7.11 testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,pollutants you have
indicated are"Believed Present"in your discharge?
U
O Yes ❑No
N
N Table C.Certain Conventional and Non-Conventional Pollutants
.� 1
m 7 12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent'for all pollutants listed on Table C for
all outfalls?
t
a) O Yes ❑ No
`.3c Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
-0 7.13 indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
"Believed Present"?
ID Yes ❑ No
W
Table D.Certain Hazardous Substances and Asbestos
Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
7.14 all outfalls?
❑O Yes ❑No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged and
(2)by providing quantitative data,if available?
El Yes ❑No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you know
or have reason to believe that TCDD is or may be present in the effluent?
❑Yes Complete Table E 0 No SKIP to section 8
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑Yes ❑No
SECTION 8.USED OR MANUFACTURED TOXICS (40 CFR 122.21(g)(9))
u 8 1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as an
• intermediate or final product or byproduct?
F-
O Yes D No SKIP to section 9
8.2 List the pollutants below.
15
1. See attachment 5 4. 7.
2
2. 5. 8.
73
3. 6. 9.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 9. BIOLOGICAL TOXICITY TESTS (40 CFR 122.21(g)(11))
Do you have any knowledge or reason to believe that any biological test for acute chronic toxicity has been made
9"1 within the last three years on (1) any of your discharges or(2) on a receiving water in relation to your discharge?
O Yes ❑ No SKIP to section 10.
9.2 Identify the tests and their purposes below.
Submitted to NPDES
Test(s) Purpose of Test(s) Date Submitted
Permitting Authority?
I-
C7 Yes ❑ No
'� Whole Effluent Toxicity Chronic Toxicity Quaterly, Monthly
0
❑ Yes ❑ No
❑ Yes ❑ No
SECTION 10. CONTRACT ANALYSES (40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in section 7 performed by a contract laboratory or consulting firm?
E Yes ❑ No SKIP to section 11.
Provide information to each contract laboratory or consulting firm below.
10.2 Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
Duke Energy Analytical Environmental Testing
a> Name of Laboratory/firm
�. Pace Laboratory Solutions
�a
Laboratory address PO Box 7565, Asheville NC
e. 13339 Hagers Ferry Road 28802
vPhone number 9808755275
Nitrate-Nitrite—N,Aroclor 1016..Aroclor 1221 Sulfate,Fluoride,Bromide,Zinc(Zn),Titanium
Aroclor 1232,Aroclor 1242,Aroclor 1248, (Ti),Tin(Sn),Manganese(Mn),Magnesium
Aroclor 1254,Aroclor 1260,Phosphorus, (Mg),Iron(Fe),Boron(B),Barium(Ba),
Acenaphthene,Acenaphthylene,Anthracene, Aluminum(Al),Thallium(TI)Low Level,Silver
Pollutant(s) analyzed Benzidine,Benzo(a)anthracene, (Ag),Selenium(Se),Nickel(Ni),Molybdenum
Benzo(a)pyrene,Benzo(b)fluoranthene, (Mo),Lead(Pb),Copper(Cu),Cobalt(Co),
Benzo(g,h,i)perylene,Benzo(k)fluoranthene,4- Chromium(Cr),Cadmium(Cd)Low Level,
Bromophenyl phenyl ether,Butyl benzyl Beryllium(Be),Arsenic(As),Antimony(Sb),
phthalate,bis(2-Chloro-1-methylethyl)ether,4- TSS,Oil and Grease
SECTION 11. ADDITIONAL INFORMATION (40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
c
° ❑ Yes 0 No SKIP to section 12.
11.2 List the information requested and attach it to this application.
0
1. 3.
2. 4.
3. 5.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 12. CHECKLIST AND CERTIFICATION STATEMENT (40 CFR 122.22(a) and (d))
12.1 In Column 1 below, mark the sections of Form 2C that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
C Section 1:Outfall Location 0 w/attachments
0 Section 2:Line Drawing 0 w/line drawing ❑ w/additional attachments
0 Section 3:Average Flows and Treatment Cl w/attachments ❑ w/list of each user of privately
owned treatment works
❑ Section 4:Intermittent Flows 0 w/attachments
0 Section 5:Production 0 w/attachments
0 Section 6:Improvements 0 w/attachments 0 w/optional additional sheets
describing any additional pollution
c ❑ w/request for a waiver and 0 w/explanation for identical outfalls
0 w/small business exemption 0 w/other attachments
V1
o Section 7:Effluent and Intake O w/Table A O w/Table B
a Characteristics O w/Table C 0 w/Table D
❑w/Table E 0 w/analytical results as an attachment
0 Section 8:Used or Manufactured Toxics 0 w/attachments
Cs
W 0 Section 9:Biological Toxicity Tests 0 w/attachments
Y
d
s 0 Section 10:Contract Analyses 0 w/attachments
0 Section 11:Additional Information 0 w/attachments
Cl Section 12:Checklist and Certification Statement C w/attachments
12.2 Certification Statement
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 fine
and imprisonment for knowing violations.
Name (print or type first and last name) Official title
Jeffrey Flanagan General Manager Ill
Signature Date signed

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE A. CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS (40 CFR 122.21(g)(7)(iii))1 OUTFALL 003
Effluent Intake(optional)
Pollutant Maximum Maximum Long-Term Long Term
Waiver Daily Monthly Average Daily Number of Average Number of
Requested Units Discharge Discharge Discharge Analyses Value Analyses
(if applicable) (specify) (required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/L <2.0
1 (BOD5) ❑
Mass lb/Day 75.1
Concentration mg/L <20
2. Chemical oxygen demand (COD) ❑
Mass lb/Day <751
Concentration mg/L 1.6
3. Total organic carbon (TOC) ❑
Mass lb/Day 60.1
Concentration mg/L 2.6
4. Total suspended solids (TSS) n
Mass lb/Day 97.6
Concentration mg/L <0.10
5. Ammonia(as N) ❑
Mass lb/Day <3.75
6. Flow ❑ Rate MGD 4.5
Temperature (winter) ❑ °C °C 19.6
7.
Temperature (summer) 0 °C °C 19.6
pH (minimum) Li Standard Units s.u. 6.9
8.
pH (maximum) 11 Standard Units s.u. 6.9

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2
through 5 of this table.Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Concentration ug/L <1
1.1 Antimony,total(7440-36-0) C 0 0
Mass lb/Day <0.0376
Concentration ug/L <1
1.2 Arsenic,total(7440-38-2) M 0 0
Mass lb/Day <0.0376
Concentration ug/L <1
1.3 Beryllium,total(7440-41-7) 0 0 O
Mass lb/Day <0.0376
Concentration ug/L <0.1
1.4 Cadmium,total(7440-43-9) 0 0 0
Mass lb/Day <0.00376
Concentration ug/L <1
1.5 Chromium,total(7440-47-3) 0 0 0
Mass lb/Day <0.0376
Concentration ug/L 4.26
1.6 Copper,total(7440-50-8) 0 0 0
Mass lb/Day 0.16
Concentration ug/L <1
1.7 Lead,total(7439-92-1) 0 0 0
Mass lb/Day <0.0376
Concentration ng/L 0.606
1.8 Mercury,total(7439-97-6) 0 0 0
Mass lb/Day 0.0000228
Concentration ug/L <1
1.9 Nickel,total(7440-02-0) 0 0 O
Mass lb/Day <0.0376
Concentration ug/L <1
1.10 Selenium,total(7782-49-2) CI ❑ E
Mass lb/Day <0.0376
Concentration ug/L <1
1.11 Silver,total(7440-22-4) 0 0 0
Mass lb/Day <0.0376

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
CAS Number, if available) Testing Long-
(and
Required (specify) Maximum Maximum Average Number
q Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Concentration ug/L <0.2
1 12 Thallium,total(7440-28-0) O ❑ O
Mass lb/Day <0.00751
Concentration mg/L 0.009
1.13 Zinc,total(7440-66-6) 17 ID 0
Mass lb/Day 0.338
Concentration mg/L <0.010
1.14 Cyanide,total(57-12-5) p ❑ 0
Mass lb/Day <0.376
Concentration ug/L <1.6
1 15 Phenols,total t7 ❑ I
Mass lb/Day <0.0601
Section 2.Organic Toxic Pollutants(GC/MS Fraction-Volatile Compounds)
Concentration ug/L <5.0
2.1 Acrolein(107-02-8) p ❑ 0
Mass lb/Day <0.188
Concentration ug/L <5.0
2.2 Acrylonitrile(107-13-1) O ❑ 0 --
Mass lb/Day <0.188
Concentration ug/L <1.0
2.3 Benzene(71-43-2) p ❑ p
Mass lb/Day <0.0376
Concentration ug/L <1.0
2 4 Bromoform(75-25-2) p ❑ p
Mass lb/Day <0.0376
Concentration ug/L <1.0
2.5 Carbon tetrachloride(56-23-5) 0 ❑ p
Mass lb/Day <0.0376
Concentration ug/L <1.0
2 6 Chlorobenzene(108-90-7) 0 ❑ p
Mass lb/Day <0.0376
Chlorodibromomethane Concentration ug/L <1.0
27 p ❑ 17
(124-48-1) Mass lb/Day <0.0376
Concentration ug/L <2.0
2 8 Chloroethane(75-00-3) p 0 0
Mass lb/Day <0.0751

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if available) (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-chloroethylvinyl ether Concentration ug/L <5.0
2.9 110-75-8
( ) 0 Mass lb/Day <0.188
Concentration ug/L <1.0
2.10 Chloroform(67-66-3) 0 0 0
Mass lb/Day <0.0376
Dichlorobromomethane Concentration ug/L <1.0
2.11
(75-27-4) ❑ Mass lb/Day <0.0376
Concentration ug/L <1.0
2 12 1,1-dichloroethane(75-34-3) 0 ❑ 0
Mass lb/Day <0.0376
Concentration ug/L <1.0
2.13 1,2-dichloroethane(107-06-2) 0 D 0
Mass lb/Day <0.0376
Concentration ug/L <1.0
2.14 1,1-dichloroethylene(75-35-4) 0 ❑ 0
Mass lb/Day <0.0376
Concentration ug/L <1.0
2 15 1,2-dichloropropane(78-87-5) 0 ❑ 0
Mass lb/Day <0.0376
1,3-dichloropropylene Concentration ug/L <1.0
2.16 0 ❑ 0
(542-75-6) Mass lb/Day <0.0376
Concentration ug/L <1.0
2.17 Ethylbenzene(100-41-4) 0 0 0
Mass lb/Day <0.0376
Concentration ug/L <2.0
2.18 Methyl bromide(74-83-9) 0 ❑ 0
Mass lb/Day <0.0751
Concentration ug/L <2.0
2.19 Methyl chloride(74-87-3) 0 0 O Mass lb/Day <0.0751
Concentration ug/L <1.0
2 20 Methylene chloride(75-09-2) 0 ❑ 0
Mass lb/Day <0.0376
1,1,2,2-tetrachloroethane Concentration ug/L <1.0
221
0 0 0
(79-34-5) Mass lb/Day <0.0376

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number, if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Tetrachloroethylene Concentration ug/L <1.0
2.22 - -
(127184) ❑ ❑ ❑ Mass lb/Day <0.0376
Concentration ug/L <1.0
2.23 Toluene(108-88-3) p El p
Mass lb/Day <0.0376
1,2-trans-dichloroethylene Concentration ug/L <1.0
2.24
❑ El
(156-60-5) Mass lb/Day <0.0376
1 1,1-trichloroethane Concentration ug/L <1.0
2.25
CI ❑ ❑(71-55-6) Mass lb/Day <0.0376
1,1,2-trichloroethane Concentration ug/L <1.0
2.26
❑ ❑ El
(79-00-5) Mass lb/Day <0.0376
Concentration ug/L <1.0
2.27 Trichloroethylene(79-01-6) ❑ ❑ El •-
Mass lb/Day <0.0376
Concentration ug/L <1.0
2 28 Vinyl chloride(75-01-4) 0 0 ❑
Mass lb/Day <0.0376
Section 3.Organic Toxic Pollutants(GC/MS Fraction-Acid Components)
Concentration ug/L <1.6
3.1 2-chlorophenol(95-57-8) ❑ ❑ EI
Mass lb/Day <0.0601
2,4-dichlorophenol Concentration ug/L <1.6
3.2 (120-83-2) 0 0 0 Mass lb/Day <0.0601
•2,4-dimethylphenol Concentration ug/L <1.6 ,
3.3 (105-67-9) 0 ❑ 0 Mass lb/Day <0.0601
.4,6-dinitro-o-cresol Concentration ug/L <8.0
3.4 (534-52-1) O 0 O
Mass lb/Day <0.3
•
Concentration ug/L <8.0
3 5 2,4-dinitrophenol(51-28-5) ❑ ❑ El
Mass lb/Day <0.3

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
and CAS Number, if Testing Lon
( (specify) Maximum Maximum Average Long-
(specify)
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-nitrophenol Concentration ug/L <3.2
3.6 88-75 5) 10
( 0 ❑ Mass lb/Day <0.12
4-nitrophenol Concentration ug/L <8.0
3.7 100-02-7
( ) 0 ❑ Mass lb/Day <0.3
1
p chloro m-cresol Concentration ug/L <1.6
3.8 59-50-70( ) ❑ Mass lb/Day <0.0601
Pentachlorophenol Concentration ug/L <8.0
3.9 87-86-5) 0( 0 Mass lb/Day <0.3
Phenol Concentration mg/L <0.0050
3.10 0 0 0
(108-95-2) Mass lb/Day <0.188
2,4,6-trichlorophenol Concentration ug/L <1.6
3.11 0 ❑ 0
(88-05-2) Mass lb/Day <0.0601
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Acenaphthene Concentration ug/L <1.6
4.1 0 ❑ 0
(83-32-9) Mass lb/Day <0.0601
Acenaphthylene Concentration ug/L <1.6
4.2 (208-96-8
) ❑ ❑ 0 Mass lb/Day <0.0601
Concentration ug/L <1.6
4.3 Anthracene(120-12-7) 0 0 0
Mass lb/Day <0.0601
Concentration ug/L <8.0
4.4 Benzidine(92-87-5) 0 0 0
Mass lb/Day <0.3
Benzo(a)anthracene Concentration ug/L <1.6
4.5 0 0 0
(56-55-3) Mass lb/Day <0.0601
Benzo(a)pyrene Concentration ug/L <1.6
4.6 0 50-32-8
) ❑ O( Mass lb/Day <0.0601

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
CAS Number, if available) Testing Long-
(and
(specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
3,4-benzofluoranthene Concentration ug/L <1.6
4.7 0 CI ID
(205-99-2) Mass lb/Day <0.0601
Concentration ug/L <1.6
4.8 Benzo(ghi)perylene(191-24-2) 0 0 0
Mass lb/Day <0.0601
4.9
Benzo(k)fluoranthene(207-08- Concentration ug/L <1.6
9) 0 CI 0Mass lb/Day <0.0601
Bis(2-chloroethoxy)methane Concentration ug/L <1.6
4.10 111-91-1
( ) Mass lb/Day <0.0601
4.11
Bis(2-chloroethyl)ether(111-44- Concentration ug/L <1.6
4) 0 0 Mass lb/Day <0.0601
Bis(2-chloroisopropyl)ether Concentration ug/L <1.6
4.12 (102-80-1) 0 0 0Mass lb/Day <0.0601
Bis(2-ethylhexyl)phthalate(117- Concentration ug/L <8.0
4.13 81 7
Mass lb/Day <0.3
4-bromophenyl phenyl ether(101 Concentration ug/L <1.6
4.14 55-3
Mass lb/Day <0.0601
Concentration ug/L <1.6
4.15 Butyl benzyl phthalate(85-68-7) 0 0 0
Mass lb/Day <0.0601
Concentration ug/L <1.6
4.16 2-chloronaphthalene(91-58-7) o o 0
Mass lb/Day <0.0601
4-chlorophenyl phenyl ether Concentration ug/L <1.6
4.17 7005-72-3
( ) 0 0 Mass lb/Day <0.0601
Concentration ug/L <1.6
4.18 Chrysene(218-01-9) 0 p 0
Mass lb/Day <0.0601
4.19
Dibenzo(a,h)anthracene(53-70- Concentration ug/L <1.6
3) � 0 0 Mass lb/Day <0.0601

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
CAS Number,if Testing Lon
(and (specify) Maximum Maximum Average Long-
(specify)
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2-dichlorobenzene Concentration ug/L <1.0
4.20 i7 i7 t]
(95-50-1) Mass lb/Day <0.0376
1,3-dichlorobenzene Concentration ug/L <1.0
4.21 ❑ (7 0
(541-73-1) Mass lb/Day <0.0376
1,4-dichlorobenzene Concentration ug/L <1.0
4.22 106-46-7
( ) Mass lb/Day <0.0376
3,3-dichlorobenzidine Concentration ug/L <8.0
4.23 ❑ ❑ Li
(91-94-1) Mass lb/Day <0.3
Diethyl phthalate Concentration ug/L <1.6
4.24 (84-66-2) � U U Mass lb/Day <0.0601
Dimethyl phthalate Concentration ug/L <1.6
4.25 131-11-3
( ) � U i7 Mass lb/Day <0.0601
Di-n-butyl phthalate Concentration ug/L <1.6
4.26 84-74-2
( ) Mass lb/Day <0.0601
2,4-dinitrotoluene Concentration ug/L <3.2
4.27 121-14-2
( ) Mass lb/Day <0.12
2,6-dinitrotoluene Concentration ug/L <3.2
4.28 t] � 3
(606-20-2) Mass lb/Day <0.12
Di-n-octyl phthalate Concentration ug/L <1.6
4.29 117-84-0
( ) Mass lb/Day <0.0601
1,2-Diphenylhydrazine Concentration ug/L <1.6
4.30 (as azobenzene) 122-66-7
( ) � � � Mass lb/Day <0.0601
Fluoranthene Concentration ug/L <1.6
4.31 206-44-0
( ) Mass lb/Day <0.0601
Fluorene Concentration ug/L <1.6
4.32
(86-73-7
) Mass lb/Day <0.0601

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
and CAS Number,if Testing Lon
( (specify) Maximum Maximum Average Long-
(specify)
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Hexachlorobenzene Concentration ug/L <1.6
4.33 118-74-1
( ) ❑ ❑ ❑ Mass lb/Day <0.0601
Hexachlorobutadiene Concentration ug/L <1.6
4.34 0 0 0
(87-68-3) Mass lb/Day <0.0601
Hexachlorocyclopentadiene Concentration ug/L <8.0
4.35 77.47-4
( ) Mass lb/Day <0.3
Hexachloroethane Concentration ug/L <1.6
4.36 67-72-1
( ) ❑ ❑ Mass lb/Day <0.0601
Indeno(1,2,3-cd)pyrene Concentration ug/L <1.6
4.37 193-39-5 CI
( ) ❑ ❑ Mass lb/Day <0.0601
Isophorone Concentration ug/L <1.6
4.38 78-59-1
( ) ❑ Mass lb/Day <0.0601
Naphthalene Concentration ug/L <1.6
4.39 91-20-3
( ) ❑ ❑ Mass lb/Day <0.0601
Nitrobenzene Concentration ug/L <1.6
4.40 (98 95 3) ❑ ❑ 0 Mass lb/Day <0.0601
N-nitrosodimethylamine Concentration ug/L <1.6
4.41 62-75-9
( ) ❑ Mass lb/Day <0.0601
N-nitrosodi-n-propylamine Concentration ug/L <1.6
4.42 621-64-7
( ) ❑ ❑ Mass lb/Day <0.0601
N-nitrosodiphenylamine Concentration ug/L <1.6
4.43 0 0 0
(86-30-6) Mass lb/Day <0.0601
Phenanthrene Concentration ug/L <1.6
4.44
(8501-8) ❑ ❑ 0 Mass lb/Day <0.0601
Pyrene Concentration ug/L <1.6
4.45
❑ ❑ 0
(129-00-0)
Mass lb/Day <0.0601

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Lon
(and CAS Number, if (specify) Maximum Maximum Average g Number
Required Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2,4-trichlorobenzene Concentration ug/L <1.6
4.46 ❑ ❑ ❑l <0.0601
(120-82-1) Mass lb/Day
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
5.1 Aldrin Concentration
(309-00-2) ❑ ❑ C Mass
a-BHC Concentration
5.2 (319-84-6) ❑ ❑ ❑
Mass
13-BHC Concentration
5.3 (319 85 7) E ❑ Mass
y-BHC Concentration
5.4 (58-89-9) ❑ ❑ IE
Mass
b-BHC Concentration
5.5 (319 86 8) ❑ ❑ C Mass
Chlordane Concentration
5.6 (57-74-9) ❑ ❑ C Mass
4,4'-DDT Concentration
5.7 (50-29-3) ❑ ❑ 0 Mass
4,4'-DDE Concentration
5.8 (72-55-9) ❑ ❑ E
Mass
4,4'-DDD Concentration
5.9 (72-54-8) ❑ ❑ C Mass
5.10 Dieldrin Concentration
(60-57-1) ❑ ❑ C Mass
a-endosulfan Concentration
5.11 (115-29-7) ❑ ❑ C Mass

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))' OUTFALL 003
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
(3-endosulfan Concentration
5.12 (115-29-7) 0 i7 C Mass
Endosulfan sulfate Concentration
5.13 (1031-07-8) ❑ ❑ 0
Mass
Endrin Concentration
5.14 (72-20-8) 0 0 0 Mass
Endrin aldehyde Concentration
5.15 (7421-93-4) 0 ❑ Mass
Heptachlor Concentration
5.16 (76-44-8) ❑ � Mass
Heptachlor epoxide Concentration
5.17 (1024-57-3) ❑ ❑ 0 Mass
PCB-1242 Concentration ug/L <0.40
5.18 (53469-21-9) Mass lb/Day <0.015
PCB-1254 Concentration ug/L <0.40
5.19 (11097-69-1) Mass lb/Day <0.015
PCB-1221 Concentration ug/L <0.40
5.20 (11104-28-2) Mass lb/Day <0.015
PCB-1232 Concentration ug/L <0.40
5.21 (11141-16-5) Mass lb/Day <0.015
PCB-1248 Concentration ug/L <0.40
5.22 (12672-29-6) ❑ 0 0Mass lb/Day <0.015
PCB-1260 Concentration ug/L <0.40
5.23 (11096-82-5) ❑ 0 Li Mass lb/Day <0.015
PCB-1016 Concentration ug/L <0.40
5.24 (12674-11-2) 0 � o Mass lb/Day <0.015

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number, if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
5.25 Toxaphene Concentration
(8001-35-2) ❑ U
Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Presence or AbsenceI Intake
Effluent o tianal
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if available) (specify) Maximum Maximum Average Long- Number
Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
Bromide Concentration mg/L <0.1
1 24959-67-911 CI
( ) Mass lb/Day <3.76
Chlorine, total Concentration mg/L <0.028
2. residual ❑ P
Mass lb/Day <1.05
Concentration <25.0
3. Color D P
Mass
Concentration CFU/100mL 7
4. Fecal Coliform E7 ❑
Mass lb/Day
Fluoride Concentration mg/L <0.1
5. (16984-48-8) n PIMass lb/Day <3.76
Concentration mg/L 0.10
6. Nitrate-nitrite P ❑
Mass lb/Day 3.76
Nitrogen, total Concentration mg/L 0.21
7. organic(asN) P ❑
Mass lb/Day 7.88
Concentration mg/L <5
8. Oil and Grease D p
Mass lb/Day <188
Phosphorus(as P), Concentration mg/L <0.050
9. total 7723-14-0
( ) ❑ P Mass lb/Day <1.88
10. Sulfate(as SO4) Concentration mg/L 3.9
(14808-79-8) P ❑ Mass lb/Day 146
Concentration mg/L <1.0
11. Sulfide(as S) ❑ P
Mass lb/Day <37.6

Facility Identification Number NPDES Permit Number Fac ty Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Sulfite(as SO3) Concentration mg/L 2.0
12.
(14265-45-3) n ❑ Mass lb/Day 75.1
Concentration mg/L <0.1
13. Surfactants n n
Mass lb/Day <3.75
Aluminum, total Concentration mg/L 0.286
14.
(7429-90-5) n n Mass lb/Day 10.7
Barium, total Concentration mg/L 0.013
15.
(7440-39-3) n n Mass lb/Day 0.488
16. Boron, total Concentration mg/L <0.05
(7440-42-8) ❑ n Mass lb/Day <1.88
17. Cobalt, total Concentration ug/L <1
(7440-48-4) n n Mass lb/Day <0.0376
Iron, total Concentration mg/L 0.376
18.
(7439-89-6) n ❑ Mass lb/Day 14.1
Magnesium, total Concentration mg/L 2.09
19
(7439-95-4) n n Mass lb/Day 78.5
Molybdenum, total Concentration ug/L <1
20
(7439-98-7) n n Mass lb/Day <0.0376
21 Manganese, total Concentration mg/L 0.042
(7439-96-5) n El Mass lb/Day 1.58
Tin, total Concentration mg/L <0.01
22
(7440-31-5) n n Mass lb/Day <0.376
Titanium, total Concentration mg/L 0.009
23.
n �
(7440-32-6)
Mass lb/Day 0.338

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average Analyses
Discharge Discharge Discharge Value y
(required) (if available) (if available)
24. Radioactivity
Concentration
Alpha, total ❑ (]
Mass
Concentration
Beta,total ❑ 0
Mass
Concentration
Radium,total ❑ p
Mass
Concentration
Radium 226,total 0 p
Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(41 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence
(check one) Available Quantitative Data
Pollutant _ Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
1. Asbestos ❑ 0
2. Acetaldehyde ❑ 0
3. Allyl alcohol ❑ 0
4. Allyl chloride ❑ 0
5. Amyl acetate ❑ o
6 Aniline ❑ I]
7. Benzonitrile 0 0
8. Benzyl chloride ❑ 0
9. Butyl acetate ❑ 0
10. Butylamine 0 01
11. Captan ❑ 0
12. Carbaryl ❑ El
13. Carbofuran 0 0
14. Carbon disulfide ❑ 0
15. Chlorpyrifos ❑ 0
16. Coumaphos ❑ 0
17_ Cresol 0 0
18. Crotonaldehyde 0 0
19. Cyclohexane 0 0

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
20. 2,4-D(2,4-dichlorophenoxyacetic acid) El El
21. Diazinon ❑ 0
22. Dicamba El 0
23. Dichlobenil El 0
24. Dichlone El El
25. 2,2-dichloropropionic acid ❑ 0
26. Dichlorvos ❑ El
27. Diethyl amine ❑ 0
28 Dimethyl amine ❑ 0
29. Dintrobenzene El 0
30. Diquat El El
31. Disulfoton ❑ El
32. Diuron El 0
33. Epichlorohydrin ❑ El
34. Ethion ❑ 0
35. Ethylene diamine 0 0
36. Ethylene dibromide 0 0
37- Formaldehyde ❑ 0
38. Furfural ❑ El

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS 440 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
39. Guthion i1 U
40. Isoprene 1-1 Ll
41 Isopropanolamine El o
42. Kelthane ❑ 91
43. Kepone ❑ o
44. Malathion ❑ 2
45. Mercaptodimethur ❑
46. Methoxychlor E 0
47. Methyl mercaptan ❑ 9]
48. Methyl methacrylate ❑
49. Methyl parathion ❑
50. Mevinphos n O
51. Mexacarbate ❑ 0
52. Monoethyl amine n
53. Monomethyl amine ❑
54- Naled ❑ 0
55. Naphthenic acid ❑ 91
56. Nitrotoluene n o
57 Parathion r] C7

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS (40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
58. Phenolsulfonate ❑ p
59. Phosgene ❑ p
60. Propargite ❑ p
61. Propylene oxide ❑ p
62. Pyrethrins ❑
63. Quinoline ❑ O
64. Resorcinol ❑ p
65. Strontium ❑ p
66. Strychnine ❑ 0
67. Styrene ❑ p
68. 2,4,5-T(2,4,5- ❑ LI
trichlorophenoxyacetic acid)
69. TDE (tetrachlorodiphenyl ethane) ❑
70 2,4,5-TP[2-(2,4,5-trichlorophenoxy)
propanoic acid]
71. Trichlorofon ❑
72. Triethanolamine ❑ 0
73. Triethylamine ❑
74. Trimethylamine ❑ 91
75. Uranium ❑ p
76. Vanadium ❑ p

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 003
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
77. Vinyl acetate ❑
78. Xylene ❑
79. Xylenol ❑
80. Zirconium ❑ p
' Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant
parameters or required under 40 CFR chapter I, subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE E.2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD)(40 CFR 122.21(g)(7)(viii)) OUTFALL 003
•
TCDD Presence or Absence
Pollutant Congeners (check one) Results of Screening Procedure
Used or Believed Believed
Manufactured Present Absent
2,3,7,8-TCDD ❑ ❑ O
'Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under
40 CFR chapter I,subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
Form U.S. Environmental Protection Agency
2C A Application for NPDES Permit to Discharge Wastewater
NPDES EPA EXISTING MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURE
OPERATIONS
SECTION 1. O!TFALL LOCATION (40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below.
° Outfall
Receiving Water Name Latitude Longitude
0
Number
Catawba River/ Internal
R 004 Outfall 35.186944 81.005833
°
0
SECTION 2. LINE DRAWING (40 CFR 122.21(g)(2))
c 2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a
• water balance? (See instructions for drawing requirements. See Exhibit 2C-1 at end of instructions for
2 example.)
1 Yes ❑ No
SECTION 3. AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1, provide average flow and treatment information. Add
additional sheets if necessary.
**Outfall Number*" 004
Operations Contributing to Flow
Operation Average Flow
Miscellaneous once through non-contact 6.5 mgd
cooling water g
N mgd
0
mgd
a,
a)
`° mgd
a,
Treatment Units
Description Final Disposal of Solid or
Code from Liquid Wastes Other Than
(include size, flow rate through each treatment Table 2C-1 q
unit, retention time, etc.) by Discharge
Surface water discharge 4A

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
**Outran Number**
3.1
cont. Operations Contributing to Flow
Operation Average Flow
mgd
mgd
mgd
mgd
Treatment Units
m Description Final Disposal of Solid or
(include size, flow rate through each treatment Code from Liquid Wastes Other Than by
unit, retention time, etc.) Table 2C-1 Discharge
U
d
`L
**Outfall Number**
en
Operations Contributing to Flow
Operation Average Flow
a>
mgd
d
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Table 2C-1 Liquid Wastes Other Than by
unit, retention time, etc.) Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
E
d ❑ Yes El No SKIP to section 4.
3.3 Have you attached a list that identifies each user of the treatment works?
cn
❑ Yes ❑ No

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 4. INTERMITTENT FLOWS (40 CFR 122.21(g)(4))
Except for storm runoff, leaks, or spills, are any discharges described in Sections 1 and 3 intermittent or
4.1 seasonal?
D Yes 0 No » SKIP to section 5
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach add. pages if necessary
Outfall Frequency Flow Rate
Operation
Number (List) Average Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
days/ months/
week year mgd mgd days
days/ months/
mgdmgddays
004 week year y
days/ months/ mgd mgd days
week year g g y
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week ear
SECTION 5. PRODUCTION (40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
O Yes ❑ No y SKIP to Section 6.
g5.2 Provide the following information on applicable ELGs.
ELG Category ELG Subcategory Regulatory Citation
a)
gpower generation
f5 steam electric 40 CFR 423
Are any of the applicable ELGs expressed in terms of production (or other measure of operation)?
c 5.3 ❑ Yes 0 No 4 SKIP to Section 6.
0
al Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
E Outfall Quantity per Unit of
111 Operation, Product, or Material
6 Number Day Measure
a)
Cl)
CO
5.4
0
U
3
13
O
a

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 6.IMPROVEMENTS (40 CFR 122.21(g)(6))
Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing, upgrading,or operating wastewater treatment equipment or practices or any other environmental
6.1 programs that could affect the discharges described in this application?
❑Yes 0 No SKIP to Item 6.3.
ate,
c c 6.2 Briefly identify each applicable project in the table below.
• m Brief Identification Affected Final Compliance Dates
-a > Outfalls Source(s)of
a) a and Description of (list outfall Discharge
E Project number) Required Projected
Have you attached sheets describing any additional water pollution control programs(or other environmental
6.3 projects that may affect your discharges)that you now have underway or planned?(optional item)
❑Yes 0 No O Not Applicable
SECTION 7. EFFLUENT AND INTAKE CHARACTERISTICS (40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables
you must complete.Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for
`f 7.1 any of your outfalls?
❑Yes 0 No SKIP to Item 7.3.
If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the
7.2 application.
Outfall Number: Outfall Number: Outfall Number:
Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not
° 7.3 been requested and attached the results to this application package?
q PP� P 9
m
L4 0 Yes 0 No A Waiver has been requested from my NPDES permitting authority for all pollutants at all
a) outfalls
W Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry
7.4 categories listed in Exhibit 2C-3?(See end of instructions for exhibit.)
CI Yes 0 No SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
1D Yes ❑No
List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)
7.6 identified in Exhibit 2C-3.
Primary Industry Category Required GC/MS Fraction(s)
(Check applicable Boxes)
Steam electric power plants El Volatile C Acid CI Base/Neutral 0 Pesticide
❑Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the GC/MS
7.7 fractions checked in Item 7.6?
O Yes ❑ No
7.8 Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
where testing is not required?
O Yes ❑No
Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
7.9 required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
El Yes ❑No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
❑Yes Note that you qualify at the top of Table B,then SKIP to item 7.12 O No
Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have determined
2 7.11 testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,pollutants you have
C indicated are"Believed Present"in your discharge?
ID Yes ❑No
u, Table C.Certain Conventional and Non-Conventional Pollutants
5,
7 12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed on Table C for
co all outfalls?
U O Yes ❑No
A
Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
a 7.13 indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
"Believed Present"?
c
O Yes ❑No
W
Table D.Certain Hazardous Substances and Asbestos
7 14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
O Yes ❑No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged and
(2)by providing quantitative data,if available?
El Yes ❑No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you know
or have reason to believe that TCDD is or may be present in the effluent?
❑Yes Complete Table E O No SKIP to section 8
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑Yes ❑No
SECTION 8. USED OR MANUFACTURED TOXICS (40 CFR 122.21(g)(9))
u 8 1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as an
•)7( intermediate or final product or byproduct?
r
O Yes ❑ No SKIP to section 9
v
8.2 List the pollutants below.
1. See attachment 5 4. 7.
2. 5. 8.
m
3. 6. 9.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 9. BIOLOGICAL TOXICITY TESTS (40 CFR 122.21(g)(11))
Do you have any knowledge or reason to believe that any biological test for acute chronic toxicity has been made
9.1 within the last three years on (1) any of your discharges or(2) on a receiving water in relation to your discharge?
0 Yes ❑ No SKIP to section 10.
rn
9.2 Identify the tests and their purposes below.
Submitted to NPDES
Test(s) Purpose of Test(s) Date Submitted
o Permitting Authority?
F
7 Yes ❑ No
Whole Effluent Toxicity Chronic Toxicity quarterly, monthly
❑ Yes ❑ No
❑ Yes ❑ No
SECTION 10. CONTRACT ANALYSES (40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in section 7 performed by a contract laboratory or consulting firm?
El Yes ❑ No SKIP to section 11.
Provide information to each contract laboratory or consulting firm below.
10.2 Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
rn Duke Energy Analytical Environmental Testing
a) Name of Laboratory/firm
Pace Laboratory Solutions
7a
c
Laboratory address PO Box 7565, Asheville NC
13339 Hagers Ferry Road 28802
UPhone number 9808755275
Nitrate-Nitrite—N,Aroclor 1016,Aroclor 1221. Sulfate,Fluoride,Bromide,Zinc(Zn),Titanium
Aroclor 1232,Aroclor 1242,Aroclor 1248. (Ti),Tin(Sn),Manganese(Mn),Magnesium
Aroclor 1254,Aroclor 1260,Phosphorus. (Mg),Iron(Fe),Boron(B),Barium(Ba),
Acenaphthene,Acenaphthylene,Anthracene. Aluminum(Al),Thallium(TI)Low Level,Silver
Pollutant(s) analyzed Benzidine,Benzo(a)anthracene, (Ag),Selenium(Se),Nickel(Ni),Molybdenum
Benzo(a)pyrene,Benzo(b)fluoranthene, (Mo),Lead(Pb),Copper(Cu),Cobalt(Co),
Benzo(g,h,i)perylene,Benzo(k)fluoranthene,4- Chromium(Cr),Cadmium(Cd)Low Level,
Bromophenyl phenyl ether,Butyl benzyl Beryllium(Be),Arsenic(As),Antimony(Sb),
phthalate.bis(2-Chloro-1-methylethyl)ether,4- TSS.Oil and Grease
SECTION 11. ADDITIONAL INFORMATION (40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
c
El Yes El No SKIP to section 12.
R
E 11.2 List the information requested and attach it to this application.
`o
Ta 1. 3.
0
2. 4.
3. 5.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 12. CHECKLIST AND CERTIFICATION STATEMENT (40 CFR 122.22(a) and (d))
12.1 In Column 1 below, mark the sections of Form 2C that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
2 Section 1:Outfall Location 2 w/attachments
2 Section 2:Line Drawing O w/line drawing ❑ w/additional attachments
Section 3:Average Flows and Treatment 2 w/attachments 0 w/list of each user of privately
owned treatment works
❑ Section 4:Intermittent Flows ❑ w/attachments
O Section 5:Production ❑ w/attachments
Elw Section 6:Improvements ❑ w/attachments ❑ describinge optional nay additional
al s
any additional pollution
❑ w/request for a waiver and 0 w/explanation for identical outfalls
0 w/small business exemption 0 w/other attachments
N 2 w/Table B
0 2 Section 7:Effluent and Intake w/Table A
Characteristics 2 w/Table C ❑w/Table D
❑w/Table E 0 w/analytical results as an attachment
o 2 Section 8:Used or Manufactured Toxics 2 w/attachments
w
❑s Section 9:Biological Toxicity Tests ❑ w/attachments
0 Section 10:Contract Analyses El IN/attachments
2 Section 11:Additional Information 2 w/attachments
2 Section 12:Checklist and Certification Statement 2 w/attachments
12.2 Certification Statement
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 fine
and imprisonment for knowing violations.
Name (print or type first and last name) Official title
Jeffrey Flanagan General Manager III
Signature Date signed
l l726 72-62.3

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EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE A. CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS (40 CFR 122.21(g)(7)(iii))1 OUTFALL 004
Effluent Intake(optional)
Pollutant Maximum Maximum Long-Term Long Term
Waiver Daily Monthly Average Daily Number of Average Number of
Requested Units Discharge Discharge Discharge Analyses Value Analyses
(if applicable) (specify) (required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/L <2.0
1 (BOD5) ❑ Mass lb/Day 108
Concentration mg/L <20
2. Chemical oxygen demand (COD) ❑
Mass lb/Day <1080
Concentration mg/L 1.6
3. Total organic carbon (TOC) ❑
Mass lb/Day 86.4
Concentration mg/L 3.3
4. Total suspended solids (TSS) C
Mass lb/Day 179
Concentration mg/L <0.10
5. Ammonia (as N) ❑
Mass lb/Day <5.40
6. Flow ❑ Rate MGD 6.5
Temperature (winter) ❑ °C °C 18.0
7.
Temperature (summer) ❑ °C °C 18.0
pH (minimum) ❑ Standard Units s.u. 6.5
8.
pH (maximum) L Standard Units s.u. 6.5

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2
through 5 of this table. Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Concentration ug/L <1
1.1 Antimony,total(7440-36-0) p ❑ El
Mass lb/Day <0.0542
Concentration ug/L <1
1.2 Arsenic,total(7440-38-2) l7 D E
Mass lb/Day <0.0542
Concentration ug/L <1
1.3 Beryllium,total(7440-41-7) 0 ❑ p
Mass lb/Day <0.0542
Concentration ug/L <0.1
1.4 Cadmium,total(7440-43-9) G ❑ 0Mass lb/Day <0.00542
Concentration ug/L <1
1.5 Chromium,total(7440-47-3) O 0 D
Mass lb/Day <0.0542
Concentration ug/L 2.31
1.6 Copper,total(7440-50-8) p 2 ❑
Mass lb/Day 0.125
Concentration ug/L <1
1.7 Lead,total(7439-92-1) ❑ ❑ 0Mass lb/Day <0.0542
Concentration ng/L 2.71
1.8 Mercury,total(7439-97-6) p l7 0
Mass lb/Day 0.000147
Concentration ug/L <1
1.9 Nickel,total(7440-02-0) C ❑ El
Mass lb/Day <0.0542
Concentration ug/L <1
1.10 Selenium,total(7782-49-2) ❑ ❑ 2
Mass lb/Day <0.0542
Concentration ug/L <1
1.11 Silver,total(7440-22-4) El 0 O Mass lb/Day <0.0542

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
Effluent(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing
(and CAS Number,if available) (specify) Maximum Maximum Average Lang- Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Concentration ug/L <0.2
1.12 Thallium,total(7440-28-0) 0 ❑ p
Mass lb/Day <0.0108
Concentration mg/L 0.006
1.13 Zinc,total(7440-66-6) p p 0
Mass lb/Day 0.325
Concentration mg/L <0.010
1.14 Cyanide,total(57-12-5) p ❑ El
Mass lb/Day <0.542
Concentration ug/L <1.6
1.15 Phenols,total p ❑ p
Mass lb/Day <0.0868
Section 2.Organic Toxic Pollutants(GC/MS Fraction-Volatile Compounds)
Concentration ug/L <5.0
2.1 Acrolein(107-02-8) p ❑ ID
Mass lb/Day <0.271
Concentration ug/L <5.0
2.2 Acrylonitrile(107-13-1) p 0 El
Mass lb/Day <0.271
Concentration ug/L <1.0
2.3 Benzene(71-43-2) p ❑ ID
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.4 Bromoform(75-25-2) p ❑ p
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.5 Carbon tetrachloride(56-23-5) p ❑ p
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.6 Chlorobenzene(108-90-7) p ❑ El
Mass lb/Day <0.0542
Chlorodibromomethane Concentration ug/L <1.0
2.7 El
(124-48-1) ❑ Mass lb/Day <0.0542
Concentration ug/L <2.0
2.8 Chloroethane(75-00-3) p ❑ El
Mass lb/Day <0.108

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
and CAS Number,if available) Testing Long-
(and (specify) Maximum Maximum Average g Number
Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-chloroethylvinyl ether Concentration ug/L <5.0
2'9 (110-75-8) ❑ Mass lb/Day <0.271
Concentration ug/L <1.0
2.10 Chloroform(67-66-3) ❑ ❑ O
Mass lb/Day <0.0542
Dichlorobromomethane Concentration ug/L <1.0
2.11 75-27-4
( ) ❑ ❑ ❑ Mass lb/Day <0.0542
Concentration ug/L <1.0
2.12 1,1-dichloroethane(75-34-3) 2 ❑ ❑
Mass lb/Day <0.0542
Concentration ug/L <1.0
2 13 1,2-dichloroethane(107-06-2) p ❑ 0
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.14 1,1-dichloroethylene(75-35-4) 2 ❑ p -- -- --
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.15 1,2-dichloropropane(78-87-5) p ❑ p
Mass lb/Day <0.0542
1,3-dichloropropylene Concentration ug/L <1.0
2.16 O 0 ❑
(542-75-6) Mass lb/Day <0.0542
Concentration ug/L <1.0
2.17 Ethylbenzene(100-41-4) ❑ ❑ 2
Mass lb/Day <0.0542
Concentration ug/L <2.0
2 18 Methyl bromide(74-83-9) ❑ ❑
Mass lb/Day <0.108
Concentration ug/L <2.0
2.19 Methyl chloride(74-87-3) 17 ❑ p
Mass lb/Day <0.108
Concentration ug/L <1.0
2 20 Methylene chloride(75-09-2) CI ❑ ❑
Mass lb/Day <0.0542
1,1,2,2-tetrachloroethane Concentration ug/L <1 0
2.21
12 ❑
(79-34-5)
Mass lb/Day <0.0542

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if
Required Believed Believed (specify) Maximum Maximum Average
Number of Term Number
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available) !
Tetrachloroethylene Concentration ug/L <1.0
2.22 (127-18-4) 0 0 O
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.23 Toluene(108-88-3) 0 ❑ O
Mass lb/Day <0.0542
1,2-trans-dichloroethylene Concentration ug/L <1.0
2.24
❑ ❑(156-60-5) Mass lb/Day <0.0542
1,1,1-trichloroethane Concentration ug/L <1.0
225
El ❑ ❑(71-55-6) Mass lb/Day <0.0542
1,1,2-trichloroethane Concentration ug/L <1.0
226
❑ ❑(79-00-5) Mass lb/Day <0.0542
Concentration ug/L <1.0
2.27 Trichloroethylene(79-01-6) 0 o 0
Mass lb/Day <0.0542
Concentration ug/L <1.0
2.28 Vinyl chloride(75-01-4) 0 0 0
Mass lb/Day <0.0542
Section 3.Organic Toxic Pollutants(GC/MS Fraction-Acid Components)
Concentration ug/L <1.6
3.1 2-chlorophenol(95-57-8) 0 0 I
Mass lb/Day <0.0868
`2,4-dichlorophenol Concentration ug/L <1.6
3.2 120-83-2
( ) 0 0 Mass lb/Day <0.0868
'2,4-dimethylphenol Concentration ug/L <1.6
3.3 (105-67-9) ci 0 C] Mass lb/Day <0.0868
.4,6-dinitro-o-cresol Concentration ug/L <8.0
3.4 0 0 0
(534-52-1) Mass lb/Day <0.434
•
Concentration ug/L <8.0
3.5 2,4-dinitrophenol(51-28-5) 0 0 p
Mass lb/Day <0.434

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
and CAS Number, if 9 Testing Long-
( Required (specify) Maximum Maximum Average Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-nitrophenol Concentration ug/L <3.2
3.6 El ❑ o
(88-75-5) Mass lb/Day <0.174
4-nitrophenol Concentration ug/L <8.0
3.7 100-02-7LI( ) ❑ Mass lb/Day <0.434
p-chloro-m-cresol Concentration ug/L <1.6
3.8 C 0 ❑
(59-50-7) Mass lb/Day <0.0868
Pentachlorophenol Concentration ug/L <8.0
3.9 87-86-5
( ) ❑ 0 Mass lb/Day <0.434
Phenol Concentration mg/L <0.0050
3.10
❑ ❑(108-95-2) Mass lb/Day <0.271
2,4,6-trichlorophenol Concentration ug/L <1.6
3.11 EI 0 ❑
(88-05-2) Mass lb/Day <0.0868
Section 4. Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Acenaphthene Concentration ug/L <1.6
4.1 (83-32-9) ❑ ❑ Mass lb/Day <0.0868
Acenaphthylene Concentration ug/L <1.6
4.2 208-96-8
( ) ❑ ❑ Mass lb/Day <0.0868
Concentration ug/L <1.6
4.3 Anthracene(120-12-7) ❑ ❑ CI
Mass lb/Day <0.0868
Concentration ug/L <8.0
4.4 Benzidine(92-87-5) ❑ ❑ El
Mass lb/Day <0.434
Benzo(a)anthracene Concentration ug/L <1.6
4.5 ❑ 0 O
(56-55-3) Mass lb/Day <0.0868
4 6 Benzo(a)pyrene Concentration ug/L <1.6
❑ ❑ 0
(50-32-8) Mass lb/Day <0.0868

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))' OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number,if available) Testing (specify) Maximum Maximum Average Long- Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
3,4-benzofluoranthene Concentration ug/L <1.6
4.7
(205-99-2) Mass lb/Day <0.0868
Concentration ug/L <1.6
4.8 Benzo(ghi)perylene(191-24-2) D p p
Mass lb/Day <0.0868
Benzo(k)fluoranthene(207-08- Concentration ug/L <1.6
4.9 9) 0 CI Mass lb/Day <0.0868
Bis(2-chloroethoxy)methane Concentration ug/L <1.6
4.10 111-91-1
( ) 0 Mass lb/Day <0.0868
Bis(2-chloroethyl)ether(111-44- Concentration ug/L <1.6
4.11
4) 0 0 CI Mass lb/Day <0.0868
Bis(2-chloroisopropyl)ether Concentration ug/L <1.6
4.12 (102-80-1) 0 0 0 Mass lb/Day <0.0868
Bis(2-ethylhexyl)phthalate(117- Concentration ug/L <8.0
4.13 81-7) 0 Mass lb/Day <0.434
4-bromophenyl phenyl ether(101 Concentration ug/L <1.6
4.14 55-3
0 0 Mass lb/Day <0.0868
Concentration ug/L <1.6
4.15 Butyl benzyl phthalate(85-68-7) p p DI
Mass lb/Day <0.0868
Concentration ug/L <1.6
4.16 2-chloronaphthalene(91-58-7) p p p
Mass lb/Day <0.0868
4-chlorophenyl phenyl ether Concentration ug/L <1.6
4.17 (7005-72-3) � ❑ 3 Mass lb/Day <0.0868
Concentration ug/L <1.6
4.18 Chrysene(218-01-9) p CI p
Mass lb/Day <0.0868
Dibenzo(a,h)anthracene(53-70- Concentration ug/L <1.6
4.19
3) 0 � DI Mass lb/Day <0.0868

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing
(and CAS Number,if Required (specify) Maximum Maximum Average Long- Number
available) q Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2-dichlorobenzene Concentration ug/L <1.0
4.20 g5-50-1
( ) U � U Mass lb/Day <0.0542
1,3-dichlorobenzene Concentration ug/L <1.0
4.21 541-73-1
( ) � Mass lb/Day <0.0542
1,4-dichlorobenzene Concentration ug/L <1.0
4.22 (106-46-7) Mass lb/Day <0.0542
3,3-dichlorobenzidine Concentration ug/L <8.0
4.23 � ❑ (7
(91-94-1) Mass lb/Day <0.434
Diethyl phthalate Concentration ug/L <1.6
4.24 84-66 2
( ) Mass lb/Day <0.0868
Dimethyl phthalate Concentration ug/L <1.6
4.25 131-11-3
( ) � U Mass lb/Day <0.0868
Di-n-butyl phthalate Concentration ug/L <1.6
4.26 84-74-2
( ) Mass lb/Day <0.0868
2,4-dinitrotoluene Concentration ug/L <3.2
4.27 121-14-2
( ) Mass lb/Day <0.174
2,6-dinitrotoluene Concentration ug/L <3.2
4.28 (606-20-2) 0 ❑ O
Mass lb/Day <0.174
Di-n-octyl phthalate Concentration ug/L <1.6
4.29 117-84-0
( ) Mass lb/Day <0.0868
1,2-Diphenylhydrazine Concentration ug/L <1.6
4.30 ❑ p p
(as azobenzene)(122-66-7) Mass lb/Day <0.0868
Fluoranthene Concentration ug/L <1.6
4.31 206-44-0
( ) Mass lb/Day <0.0868
Fluorene Concentration ug/L <1.6
4.32 86 73-7
) U � U
( Mass lb/Day <0.0868

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
and CAS Number,if Testing Lon
( (specify) Maximum Maximum Average g Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available) _
Hexachlorobenzene Concentration ug/L <1.6
4.33 (118-74-1) � � o Mass lb/Day <0.0868
Hexachlorobutadiene Concentration ug/L <1.6
4.34 O 0
(87-68-3) Mass lb/Day <0.0868
Hexachlorocyclopentadiene Concentration ug/L <8.0
4.35 7-47-4
(7 ) � 0 0 Mass lb/Day <0.434
Concentration ug/L <1.6
4.36 Hexachloroethane
(67-72-1) t] 0 U Mass lb/Day <0.0868
Indeno(1,2,3-cd)pyrene Concentration ug/L <1.6
4.37 193-39-5
( ) Mass lb/Day <0.0868
Isophorone Concentration ug/L <1.6
4.38 78-591
( ) � � U Mass lb/Day <0.0868
4.39 Naphthalene Concentration ug/L <1.6
(91-20-3) 0 ❑ U Mass lb/Day <0.0868
Nitrobenzene Concentration ug/L <1.6
4.40 g8-95-3
( ) Mass lb/Day <0.0868
N-nitrosodimethylamine Concentration ug/L <1.6
4.41 62-75-9
( ) Mass lb/Day <0.0868
N-nitrosodi-n-propylamine Concentration ug/L <1.6
4.42 621-64-7
( ) Mass lb/Day <0.0868
N-nitrosodiphenylamine Concentration ug/L <1.6
4.43 86-30-6
( ) Mass lb/Day <0.0868
Phenanthrene Concentration ug/L <1.6
4.44 g5 01-8
( ) � ❑ U Mass lb/Day <0.0868
Pyrene Concentration ug/L <1.6
4.45
(129-00-0) Mass lb/Day <0.0868

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing
(and CAS Number, if Required (specify) Maximum Maximum Average Long- Number
a Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2,4-trichlorobenzene Concentration ug/L <1.6
4.46 (120-82-1) ❑ ❑ n
Mass lb/Day <0.0868
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
5.1 Aldrin Concentration
(309-00-2) C ❑ E
Mass
5.2 o-BHC Concentration
(319-84-6) ❑ ❑ t7
Mass
13-BHC Concentration
5.3 ❑ ❑ n
(319-85-7) Mass
y-BHC Concentration
5.4 (58 89 9) ❑ ❑ El
Mass
O-BHC Concentration
5.5 ❑ ❑
(319-86-8) Mass
Chlordane Concentration
5.6 (57-74-9) C ❑ 17
Mass
4,4'-DDT Concentration
5.7 (50-29-3) C ❑ ❑ Mass
4,4'-DDE Concentration
5.8 (72-55-9) C C t7 Mass
5.9
4,4'-DDD Concentration
(72-54-8) Mass
.
Dieldrin Concentration
5.10 (60-57-1) C C 17 Mass
a-endosulfan Concentration
5.11 0 ❑ E •
(115-29-7) Mass

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence r Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Lon
(and CAS Number, if (specify) Maximum Maximum Average g Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
• Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
5.12 a-endosulfan Concentration
(115-29-7) 0 0 O Mass
5.13 Endosulfan sulfate Concentration
(1031-07-8) 0 0 0 Mass
,5.14 Endrin Concentration
(72-20-8) 0 0 o Mass
5.15 Endrin aldehyde Concentration
(7421-93-4) 0 0 0 Mass
5.16 Heptachlor Concentration
(76-44-8) 0 0 0 Mass
5.17 Heptachlor epoxide Concentration
(1024-57-3) 0 El C Mass
PCB-1242 Concentration ug/L <0.40
5.18 (53469-21-9) Mass lb/Day <0.0217
PCB-1254 Concentration ug/L <0.40
5.19
(11097-69-1) Mass lb/Day <0.0217
PCB-1221 Concentration ug/L <0.40
5.20 (11104-28-2) Mass lb/Day <0.0217
PCB-1232 Concentration ug/L <0.40
5.21
(11141-16-5) Mass lb/Day . <0.0217
PCB-1248 Concentration ug/L <0.40
5.22 (12672-29-6) 0 C 0 Mass lb/Day <0.0217
PCB-1260 Concentration ug/L <0.40
5.230 0 0
( -511096-82 ) Mass lb/Day <0.0217
5.24
PCB-1016 Concentration ug/L <0.40
(12674-11-2) 0 0 0Mass lb/Day <0.0217

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long-
(and CAS Number, if Required Believed Believed (specify) Maximum Maximum Average Number of Term Number
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
5.25 Toxaphene Concentration
(8001-35-2) � L Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Presence or AbsenceII Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if available) (specify) Maximum Maximum Average Long- Number
Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
Bromide Concentration mg/L <0.1
1 24959-67-9CI Cl
( ) Mass lb/Day <5.42
Chlorine, total Concentration mg/L <0.028
2. residual n 0
Mass lb/Day <1.52
Concentration <25.0
3. Color n n
Mass
Concentration CFU/100mL 10
4. Fecal Coliform n Cl
Mass lb/Day
Fluoride Concentration mg/L <0.1
5. n n
(16984-48-8) Mass lb/Day <5.42
Concentration mg/L 0.11
6. Nitrate-nitrite n Cl
Mass lb/Day 5.97
Nitrogen, total Concentration mg/L 0.24
7.
organic(as N) ❑ ❑ Mass lb/Day 13
Concentration mg/L <5
8. Oil and Grease C 0
Mass lb/Day <271
Phosphorus(as P), Concentration mg/L <0.050
9. total(7723-14-0 ❑ M '
Mass Ib/Day <2.71
10. Sulfate(as SO4) Concentration mg/L 3.9
(14808 79 8) n ❑ Mass lb/Day 212
Concentration mg/L <1.0
11. Sulfide(as S) n n
-
Mass lb/Day <54.2

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long-
Number
available) Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) _ (if available) (if available)
Sulfite(as S03) Concentration mg/L 2.5
12.
(14265-45-3) fl ❑ Mass lb/Day 136
Concentration mg/L <0.1
13 Surfactants ❑ p
Mass lb/Day <5.4
14. Aluminum, total Concentration mg/L 0.256
(7429-90-5) n ❑ Mass lb/Day 13.9
15. Barium, total Concentration mg/L 0.012 _
(7440-39-3) n ❑ Mass lb/Day 0.651
16. Boron, total Concentration mg/L <0.05
(7440-42-8) n m
Mass lb/Day <2.71
17. Cobalt, total Concentration ug/L <1
(7440-48 4) ❑ MMass lb/Day <0.0542
18. Iron, total Concentration mg/L 0.303
(7439 89 6) n ❑ Mass lb/Day 16.4
Magnesium, total Concentration mg/L 2.04
19
(7439-95-4) n ❑ Mass lb/Day 111
20 Molybdenum, total Concentration ug/L <1
(7439-98-7) fl Mass lb/Day <0.0542
21 Manganese, total Concentration mg/L 0.034
(7439-96-5) P1 ❑ Mass lb/Day 1.84
22. Tin, total Concentration mg/L <0.01
(7440 31-5) ra PIMass lb/Day <0.542
Titanium, total Concentration mg/L 0.008
23. (7440-32-6) n ❑ Mass lb/Day 0.434

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average Analyses
Discharge Discharge Discharge Value
(required) (if available) (if available)
24. Radioactivity
Concentration
Alpha, total ❑
Mass
Concentration
Beta,total p
Mass
Concentration
Radium,total
Mass
Concentration
Radium 226,total p p
Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
1. Asbestos ❑ El
2 Acetaldehyde 0 0
3. Allyl alcohol El 0
4. Allyl chloride 0 El
5. Amyl acetate ❑ 0
6 Aniline El 0
7. Benzonitrile 0 El
8 Benzyl chloride 0 0
9. Butyl acetate ❑ 0
10. Butylamine ❑ El
11. Captan ❑ o
12. Carbaryl El El
13. Carbofuran ❑ El
14. Carbon disulfide O El
15. Chlorpyrifos ❑ ID
16. Coumaphos El El
17. Cresol 0 CI
18. Crotonaldehyde ❑ 0
19. Cyclohexane 0 El

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
20. 2,4-D (2,4-dichlorophenoxyacetic acid) ❑ El
21. Diazinon n f7
22. Dicamba El D
23. Dichlobenil El 0
24. Dichlone El u
25. 2,2-dichloropropionic acid D 0
26. Dichlorvos El ID
27. Diethyl amine El 0
28 Dimethyl amine ❑ o
29. Dintrobenzene ❑ ❑
30. Diquat ❑ CI
31. Disulfoton n o
32. Diuron ❑ El
33. Epichlorohydrin n El
34. Ethion El o
35. Ethylene diamine ❑ o
36. Ethylene dibromide ❑ o
37. Formaldehyde ❑ o
38. Furfural 0 ID

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS$40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
39. Guthion ❑ t7
40. Isoprene n o
41. Isopropanolamine ❑ O
42. Kelthane ❑ 0
43. Kepone ❑ 0]
44. Malathion ❑ 0
45. Mercaptodimethur ❑ CI
46. Methoxychlor ❑ O
47_ Methyl mercaptan ❑ 01
48. Methyl methacrylate ❑ 0]
49. Methyl parathion ❑ 01
50. Mevinphos El 01
51. Mexacarbate ❑ o
52. Monoethyl amine rl 0]
53. Monomethyl amine ❑ o
54. Naled ❑ o
55 Naphthenic acid ❑ El
56. Nitrotoluene ❑ CI
57 Parathion ❑ 01

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS (40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
58. Phenolsulfonate ❑
59. Phosgene ❑ ci
60 Propargite ❑ L7
61. Propylene oxide ❑
62. Pyrethrins ❑ p
63. Quinoline ❑
64. Resorcinol
65. Strontium ❑ o
66. Strychnine ❑ ci
67. Styrene ❑ 0
2,4,5-T(2,4,5- ❑ ci
68. trichlorophenoxyacetic acid)
69. TDE(tetrachlorodiphenyl ethane) ❑ p
70 2,4,5-TP[2-(2,4,5-trichlorophenoxy) ❑ o
propanoic acid]
71. Trichlorofon ❑ ci
72. Triethanolamine ❑ ci
73. Triethylamine ❑ t7
74. Trimethylamine ❑ El
75. Uranium ❑ ci
76. Vanadium ❑ ci

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 004
Presence or Absence
Pollutant (check one) Available Quantitative Data
Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
77. Vinyl acetate ❑ O
78. Xylene ❑ O
79. Xylenol ❑ p
80. Zirconium ❑ p
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant
parameters or required under 40 CFR chapter I, subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE E. 2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD)(40 CFR 122.21(g)(7)(viii)) OUTFALL 004
TCDD Presence or Absence
Pollutant Congeners (check one) Results of Screening Procedure
Used or Believed Believed
Manufactured Present Absent
2,3,7,8-TCDD ❑ ❑ O
'Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under
40 CFR chapter I,subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD043678937 NC0004979 Allen Steam Station OMB No.2040-0004
Form U.S. Environmental Protection Agency
Application for NPDES Permit to
2C vEPA EXISTING MANUFACTUR IN Discharge
COMMERCIALS MINING, AND SILVICULTURE
NPDES OPERATIONS
SECTION 1. OUTFALL LOCATION (40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below.
c -
Outfa l I
Receiving Water Name Latitude Longitude
Number
006 Catawba River 35.180556 81.013611
cts
SECTION 2. LINE DRAWING (40 CFR 122.21(g)(2))
2.1
a Have you attached a line drawing to this application that shows the water flow through your facility with a
c water balance? (See instructions for drawing requirements. See Exhibit 2C-1 at end of instructions for
E example.)
DYes No
SECTION 3. AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1, provide average flow and treatment information. Add
additional sheets if necessary.
**Outfall Number** 006
Operations Contributing to Flow
Operation Average Flow
as
wastewater treatment system 3.3 mgd
mgd
3
ti mgd
a,
a)
mgd
Treatment Units
Description Final Disposal of Solid or
Code from Liquid Wastes Other Than
(include size, flow rate through each treatment Table 2C-1 q
unit, retention time, etc.) by Discharge
Chemical coagulation, settling,
2D, 2K, 1U, 4A
Neutralization, reduction, surface water

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
3.1 **Outfall Number**
cont. Operations Contributing to Flow
Operation Average Flow
mgd
mgd
mgd
mgd
Treatment Units
3 Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Table 2C 1 Liquid Wastes Other Than by
ounit, retention time, etc.) Discharge
U
m
d
**Outfall Number**
Operations Contributing to Flow
u.
a� Operation Average Flow
L_ mgd
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size, flow rate through each treatment Table 2C 1 Liquid Wastes Other Than by
unit, retention time, etc.) Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
E
❑ Yes El No SKIP to section 4.
3.3 Have you attached a list that identifies each user of the treatment works?
❑ Yes ❑ No

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 4. INTERMITTENT FLOWS (40 CFR 122.21(g)(4))
Except for storm runoff, leaks, or spills, are any discharges described in Sections 1 and 3 intermittent or
4.1 seasonal?
El Yes ❑ No 4 SKIP to section 5
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach add. pages if necessary
Outfall Frequency Flow Rate
Operation
Number (List) Average Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
days/ months/ mgd mgd days
u. week year
days/ months/ an d mgd da s
(1) 006 week year g g y
days
mgd days/ months/
1r ang g y d s
week year
days/ months/ mgd mgd days
week year
days! months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week year
days/ months/ mgd mgd days
week ear
SECTION 5. PRODUCTION (40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
CI Yes El No 4 SKIP to Section 6.
g 5.2 Provide the following information on applicable ELGs.
w ELG Category ELG Subcategory Regulatory Citation
a>
Ipower generation
tg Steam Electric 40 CFR 423
Are any of the applicable ELGs expressed in terms of production (or other measure of operation)?
c 5.3 El Yes O No y SKIP to Section 6.
0
Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
E Outfall Quantity per Unit of
;ii Operation, Product, or Material
a Number Day Measure
a)
U,
co
CO
5.4
0
Ts
0
L
a

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 6.IMPROVEMENTS (40 CFR 122.21(g)(6))
Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing,upgrading,or operating wastewater treatment equipment or practices or any other environmental
6.1 programs that could affect the discharges described in this application?
0 Yes O No SKIP to Item 6.3.
co d 6.2 Briefly identify each applicable project in the table below.
a) a, Brief Identification Affected Final Compliance Dates
> Outfalls Source(s)of
i o and Description of
o. gist outfallDischarge
E Project number)ey) Required Projected
_
Have you attached sheets describing any additional water pollution control programs(or other environmental
6.3 projects that may affect your discharges)that you now have underway or planned?(optional item)
❑Yes ❑ No El Not Applicable
SECTION 7.EFFLUENT AND INTAKE CHARACTERISTICS (40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn,the tables
you must complete. Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for
7.1 any of your outfalls?
�' 0 Yes 17 No SKIP to Item 7.3.
If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the
7.2 application.
tJ a) Outfall Number: Outfall Number: Outfall Number:
Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not
7.3 been requested and attached the results to this application package?
Q Pp� P 9
El Yes 0 No A Waiver has been requested from my NPDES permitting authority for all pollutants at all
outfalls
w Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry
7.4 categories listed in Exhibit 2C-3?(See end of instructions for exhibit.)
O Yes 0 No SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
El Yes ❑No
7.6 List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)
identified in Exhibit 2C-3.
Primary Industry Category Required GC/MS Fraction(s)
(Check applicable Boxes)
Steam electric power plants El Volatile CI Acid ❑ Base/Neutral 0 Pesticide
C Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
7.7 Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the GC/MS
fractions checked in Item 7.6?
ID Yes ❑No
Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
7.8 where testing is not required?
C Yes ❑No
Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
7.9 required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
CI Yes ❑No
qualifyfor a small business exemption under the criteria specified in the instructions?
7.10 Does the applicant p p
0 Yes Note that you qualify at the top of Table B,then SKIP to item 7.12 2 No
Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have determined
S 7.11 testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,pollutants you have
indicated are"Believed Present"in your discharge?
0 Yes ❑ No
w Table C.Certain Conventional and Non-Conventional Pollutants
5,
R 7 12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed on Table C for
a all outfalls?
❑Yes ❑No
Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
c 7.13 indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
"Believed Present"?
c
d O Yes ❑No
W
Table D.Certain Hazardous Substances and Asbestos
7.14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
l7 Yes ❑No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged and
(2)by providing quantitative data,if available?
El Yes ❑No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you know
or have reason to believe that TCDD is or may be present in the effluent?
❑Yes Complete Table E 2 No SKIP to section 8
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑Yes ❑ No
SECTION 8.USED OR MANUFACTURED TOXICS (40 CFR 122.21(g)(9))
`' 8 1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as an
o intermediate or final product or byproduct?
I-
o ID Yes ❑No SKIP to section 9
8.2 List the pollutants below.
1. See attachment 5 4. 7.
m
2
2. 5. 8.
5,
m
3. 6. 9.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 9. BIOLOGICAL TOXICITY TESTS (40 CFR 122.21(g)(11))
Do you have any knowledge or reason to believe that any biological test for acute chronic toxicity has been made
9'1 within the last three years on (1)any of your discharges or(2)on a receiving water in relation to your discharge?
0 Yes ❑ No SKIP to section 10.
N
9.2 Identify the tests and their purposes below.
Submitted to NPDES
Test(s) Purpose of Test(s) Date Submitted
Permitting Authority?
c:s 7 Yes E No
rJ
_O
° ❑ Yes ❑ No
❑ Yes ❑ No
SECTION 10. CONTRACT ANALYSES (40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in section 7 performed by a contract laboratory or consulting firm?
O Yes ❑ No SKIP to section 11.
Provide information to each contract laboratory or consulting firm below.
10.2 Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
Duke Energy Analytical Environmental Testing
Name of Laboratory/firm
Pace Laboratory Solutions
Laboratory address PO Box 7565, Asheville NC
13339 Hagers Ferry Road 28802
ci Phone number 9808755275
Nitrate-Nitrite—N,Aroclor 1016,Aroclor 1221, Sulfate,Fluoride,Bromide,Zinc(Zn),Titanium
Aroclor 1232,Aroclor 1242,Aroclor 1248, (Ti),Tin(Sn),Manganese(Mn),Magnesium
Aroclor 1254,Aroclor 1260,Phosphorus, (Mg),Iron(Fe),Boron(B),Barium(Ba),
Acenaphthene,Acenaphthylene,Anthracene, Aluminum(Al),Thallium(TI)Low Level,Silver
Pollutant(s)analyzed Benzidine,Benzo(a)anthracene, (Ag),Selenium(Se),Nickel(Ni),Molybdenum
Benzo(a)pyrene,Benzo(b)fluoranthene, (Mo),Lead(Pb),Copper(Cu),Cobalt(Co),
Benzo(g,h,i)perylene,Benzo(k)fluoranthene,4- Chromium(Cr),Cadmium(Cd)Low Level,
Bromophenyl phenyl ether,Butyl benzyl Beryllium(Be),Arsenic(As),Antimony(Sb),
phthalate,bis(2-Chloro-l-methylethyl)ether,4- TSS,Oil and Grease
SECTION 11.ADDITIONAL INFORMATION (40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
° ❑ Yes E1 No SKIP to section 12.
E 11.2 List the information requested and attach it to this application.
`o
w
1. 3.
2. 4.
3. 5.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
SECTION 12. CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a) and (d))
12.1 In Column 1 below, mark the sections of Form 2C that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
D Section 1:Outfall Location O w/attachments
El Section 2:Line Drawing O w/line drawing 0 w/additional attachments
w/list of each user of privately
El Section 3:Average Flows and Treatment O w/attachments 0
owned treatment works
❑ Section 4:Intermittent Flows ❑ w/attachments
❑ Section 5:Production ❑ w/attachments
❑ Section 6:Improvements 0 w/attachments 0
e d optional additional sheets
describing any additional pollution
0 w/request for a waiver and 0 w/explanation for identical outfalls
a,
d ❑ w/small business exemption 0 w/other attachments
co
Section 7:Effluent and Intake O w/Table A
O w/Table B
Characteristics p w/Table C 0 w/Table D
❑ w/Table E 0 w/analytical results as an attachment
c 0 Section 8:Used or Manufactured Toxics O w/attachments
co
h O Section 9:Biological Toxicity Tests ❑ w/attachments
0 Section 10:Contract Analyses 0 w/attachments
17 Section 11:Additional Information (] w/attachments
O Section 12:Checklist and Certification Statement O w/attachments
12.2 Certification Statement
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 fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Jeffrey Flanagan General Manager III
Signature Date signed
r 126 /Zc lY

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE A. CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS (40 CFR 122.21(g)(7)(iii))1 OUTFALL 006
Effluent Intake(optional)
Pollutant Maximum Maximum Long-Term Long Term
Waiver Daily Monthly Average Daily Number of Average Number of
Requested Units Discharge Discharge Discharge Analyses Value Analyses
(if applicable) (specify) (required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/L <2.0
1 (BOD5) ❑ Mass lb/Day <4.14
Concentration mg/L <20
2. Chemical oxygen demand (COD) ❑
Mass lb/Day <41.4
Concentration mg/L 2.3
3. Total organic carbon (TOC) ❑
Mass lb/Day 4.76
Concentration mg/L <2.5
4. Total suspended solids (TSS) ❑
Mass lb/Day <5.17
Concentration mg/L 0.66
5. Ammonia (as N) ❑
Mass lb/Day 1.37
6. Flow ❑ Rate MGD 0.248
Temperature (winter) n °C °C 17.1
7.
Temperature (summer) °C °C 17.1
pH (minimum) U Standard Units s.u. 7.0
8.
pH (maximum) U Standard Units s.u. 7.0

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter TestingUnits Long-Term Long-
(and
CAS Number,if Required (specify) Maximum Maximum Average Number
available) 4 Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2
through 5 of this table.Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Concentration ug/L <1
1.1 Antimony,total(7440-36-0) p ❑ O
Mass lb/Day <0.00207
Concentration ug/L <1
1.2 Arsenic,total(7440-38-2) O ❑ p
Mass lb/Day <0.00207
Concentration ug/L <1
1.3 Beryllium,total(7440-41-7) O ❑ O
Mass lb/Day <0.00207
Concentration ug/L 0.186
1.4 Cadmium,total(7440-43-9) p p ❑
Mass lb/Day 0.000385
Concentration ug/L <1
1.5 Chromium,total(7440-47-3) O ❑ p
Mass lb/Day <0.00207
Concentration ug/L 2.28
1.6 Copper,total(7440-50-8) O p o
Mass lb/Day 0.00472
Concentration ug/L <1
1.7 Lead,total(7439-92-1) O ❑ O Mass lb/Day <0.00207
Concentration ng/L 4.74
1.8 Mercury,total(7439-97-6) O O ❑
Mass lb/Day 0.00000981
Concentration ug/L 13.3
1.9 Nickel,total(7440-02-0) O O ❑
Mass lb/Day 0.0275
Concentration ug/L 1.91
1.10 Selenium,total(7782-49-2) O O ❑
Mass lb/Day 0.00395
Concentration ug/L <1
1.11 Silver,total(7440-22-4) O ❑ p
Mass lb/Day <0.00207

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))' OUTFALL 006
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if available) (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Concentration ug/L 0.205
1.12 Thallium,total(7440-28-0) 0 0 ❑
Mass lb/Day 0.000424
Concentration mg/L 0.030
1.13 Zinc,total(7440-66-6) 0 0 ❑ Mass lb/Day 0.0621
Concentration mg/L <0.010
1.14 Cyanide,total(57-12-5) 0 ❑ 0
Mass lb/Day <0.0207
Concentration ug/L <1.6
1.15 Phenols,total 0 ❑ 1=1Mass lb/Day <0.00331
Section 2.Organic Toxic Pollutants(GC/MS Fraction-Volatile Compounds)
Concentration ug/L <5.0
2.1 Acrolein(107-02-8) 0 ❑ 0Mass lb/Day <0.0103
Concentration ug/L <5.0
2.2 Acrylonitrile(107-13-1) 0 ❑ 0 Mass lb/Day <0.0103
Concentration ug/L <1.0
2.3 Benzene(71-43-2) O ❑ 0
Mass lb/Day <0.00207
Concentration ug/L <1.0
2.4 Bromoform(75-25-2) 0 ❑ 0 Mass lb/Day <0.00207
Concentration ug/L <1.0
2.5 Carbon tetrachloride(56-23-5) 0 ❑ O
Mass lb/Day <0.00207
Concentration ug/L <1.0
2.6 Chlorobenzene(108-90-7) 0 ❑ O
Mass lb/Day <0.00207
Chlorodibromomethane Concentration ug/L <1.0
2.7 (124-48-1) 0 ❑ 0 Mass lb/Day <0.00207
Concentration ug/L <2.0
2.8 Chloroethane(75-00-3) 0 ❑ 0
Mass lb/Day <0.00414

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFACE 006
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
and CAS Number,if availableTesting Long-
( )
(specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
2-chloroethylvinyl ether Concentration ug/L <5.0
2.9 (110-75-8) 0 0 0 Mass lb/Day <0.0103
Concentration ug/L <1.0
2.10 Chloroform(67-66-3) 0 0 0
Mass lb/Day <0.00207
Dichlorobromomethane Concentration ug/L <1.0
2 11 75-27-4
( ) ❑ ❑ ❑ Mass lb/Day <0.00207
Concentration ug/L <1.0
2.12 1,1-dichloroethane(75-34-3) 0 ❑ 0
Mass lb/Day <0.00207
Concentration ug/L <1.0
2.13 1,2-dichloroethane(107-06-2) 0 D 0
Mass lb/Day <0.00207
Concentration ug/L <1.0
2.14 1,1-dichloroethylene(75-35-4) 0 ❑ 0
Mass lb/Day <0.00207
Concentration ug/L <1.0
2.15 1,2-dichloropropane(78-87-5) ❑ ❑ 0
Mass lb/Day <0 00207
1,3-dichloropropylene Concentration ug/L <1.0
2.16 0 0 0
(542-75-6) Mass lb/Day <0.00207
Concentration ug/L <1.0
2.17 Ethylbenzene(100-41-4) 0 0 0
Mass lb/Day <0.00207
Concentration ug/L <2.0
2.18 Methyl bromide(74-83-9) 0 0 0
Mass lb/Day <0.00414
Concentration ug/L <2.0
2.19 Methyl chloride(74-87-3) ❑ ❑ 0
Mass lb/Day <0.00414
Concentration ug/L <1.0
2.20 Methylene chloride(75-09-2) 0 ❑ 0
Mass lb/Day <0.00207
1,1,2,2-tetrachloroethane Concentration ug/L <10
2.21 79-34-5
) 0 ❑( Mass lb/Day <0.00207

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Tetrachloroethylene Concentration ug/L <1.0
2.22 (127-18-4) 0 0 0 Mass lb/Day <0.00207
Concentration ug/L <1.0
2.23 Toluene(108-88-3) p 0 0
Mass lb/Day <0.00207
1,2-trans-dichloroethylene Concentration ug/L <1.0
2.24
0(156-60-5) Mass lb/Day <0.00207
1,1,1-trichloroethane Concentration ug/L <1.0
2.25
❑(71-55-6) Mass lb/Day <0.00207
1,1,2-trichloroethane Concentration ug/L <1.0
2.26
0
(79-00-5) Mass lb/Day <0.00207
Concentration ug/L <1.0
2.27 Trichloroethylene(79-01-6) O ❑ 0
Mass lb/Day <0.00207
Concentration ug/L <1.0
2.28 Vinyl chloride(75-01-4) O ❑ p
Mass lb/Day <0.00207
Section 3.Organic Toxic Pollutants(GC/MS Fraction-Acid Components)
Concentration ug/L <1.6
3.1 2-chlorophenol(95-57-8) p ❑ p
Mass lb/Day <0.00331
2,4-dichlorophenol Concentration ug/L <1.6
3.2 (120-83-2) 0 0 0 Mass lb/Day <0.00331
2,4-dimethylphenol Concentration ug/L <1.6
3.3 (105-67-9) 2 ❑ 2
Mass lb/Day <0.00331
4,6-dinitro-o-cresol Concentration ug/L <8.0
3.4 O 0 O
(534-52-1) Mass lb/Day <0.0166
Concentration ug/L <8.0
3.5 2,4-dinitrophenol(51-28-5) 0 ❑ ID
Mass lb/Day <0.0166

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number, if (specify) Maximum Maximum Average Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average Analyses
Discharge Discharge Discharge Value y
(required) (if available) (if available)
2-nitrophenol Concentration ug/L <3.2
3.6
(88-75-5) ❑ Mass lb/Day <0.00662
4-nitrophenol Concentration ug/L <8.0
3.7 100-02-7
( ) O ❑ Mass lb/Day <0.0166
p-chloro-m-cresol Concentration ug/L <1.6
3.8 O ❑ t7
(59-50-7) Mass lb/Day <0.00331
Pentachlorophenol Concentration ug/L <8.0
3.9 87-86-5
( ) O ❑ Mass lb/Day <0.0166
Phenol Concentration mg/L <0.0050
3.10
❑(108-95-2) Mass lb/Day <0.0103
2,4,6-trichlorophenol Concentration ug/L <1.6
3.11 88-05-2
( ) ❑ Mass lb/Day <0.00331
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Acenaphthene Concentration ug/L <1.6
4.1 83-32-9 CI
( ) ❑ ❑ Mass lb/Day <0.00331
Acenaphthylene Concentration ug/L <1.6
4.2 208-96-8 ID
( ) ❑ ❑ Mass lb/Day <0.00331
Concentration ug/L <1.6
4.3 Anthracene(120-12-7) ❑ ❑ p
Mass lb/Day <0.00331
Concentration ug/L <8.0
4.4 Benzidine(92-87-5) ❑ ❑ p
Mass lb/Day <0.0166
Benzo(a)anthracene Concentration ug/L <1.6
4.5 (56-55-3) 0 0 Mass lb/Day <0.00331
Benzo(a)pyrene Concentration ug/L <1.6
4.6 ❑ ❑ p
(50-32-8) Mass lb/Day <0.00331

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFACE 006
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number,if available) Testing
Required Believed Believed (specify) Maximum Maximum Average Long Number of Term Number
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
3,4-benzofluoranthene Concentration ug/L <1.6
4.7
(205-99-2) Mass lb/Day <0.00331
Concentration ug/L <1.6
4.8 Benzo(ghi)perylene(191-24-2) ❑ CI p
Mass lb/Day <0.00331
Benzo(k)fluoranthene(207-08-
4.9 Concentration ug/L <1.6
9) � o Mass lb/Day <0.00331
Bis(2-chloroethoxy)methane Concentration ug/L <1.6
4.10 111-91-10 0 0
( ) Mass lb/Day <0.00331
Bis(2-chloroethyl)ether(111-44-
4.11 Concentration ug/L <1.6
4) � 00 Mass lb/Day <0.00331
Bis(2-chloroisopropyl)ether Concentration ug/L <1.6
4.12 (102-80-1) 0 � 0 Mass lb/Day <0.00331
Bis(2-ethylhexyl)phthalate(117- Concentration ug/L <8.0
4.13 81-7) 0 o Mass lb/Day <0.0166
4-bromophenyl phenyl ether(101 Concentration ug/L <1.6
4.14 55-3) 0 0 0 Mass lb/Day <0.00331
Concentration ug/L <1.6
4.15 Butyl benzyl phthalate(85-68-7) p p CI
Mass lb/Day <0.00331
Concentration ug/L <1.6
4.16 2-chloronaphthalene(91-58-7) ❑ ❑ 0
Mass lb/Day <0.00331
4-chlorophenyl phenyl ether Concentration ug/L <1.6
4.17 7005-72-3
( ) Mass lb/Day <0.00331
Concentration ug/L <1.6
4.18 Chrysene(218-01-9) 0 0 CI
Mass lb/Day <0.00331
Dibenzo(a,h)anthracene(53-70-
4.19 Concentration ug/L <1.6
3) ID � Mass lb/Day <0.00331

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number,if
Required Believed Believed (specify) Maximum Maximum Average
Number of Term Number
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2-dichlorobenzene Concentration ug/L <1.0
4.20 (95-50-1) ❑ ❑ Mass lb/Day <0.00207
1,3-dichlorobenzene Concentration ug/L <1.0
4.21 (541-73-1) ❑ ❑ Mass lb/Day <0.00207
1,4-dichlorobenzene Concentration ug/L <1.0
4.22 106-46-7
( ) ❑ ❑ Mass lb/Day <0.00207
3,3-dichlorobenzidine Concentration ug/L <8.0
4.23 91-94-1
( ) ❑ ❑ Mass lb/Day <0.0166
Diethyl phthalate Concentration ug/L <1.6
4.24 84-66-2
( ) ❑ ❑ Mass lb/Day <0.00331
Dimethyl phthalate Concentration ug/L <1.6
4.25 131-11-3)
( ❑ ❑ Mass lb/Day <0.00331
Di-n-butyl phthalate Concentration ug/L <1.6
4.26 (84 74 2) ❑ ❑ El Mass lb/Day <0.00331
2,4-dinitrotoluene Concentration ug/L <3.2
4.27 (121-14-2) ❑ ❑ C Mass lb/Day <0.00662
2,6-dinitrotoluene Concentration ug/L <3.2
4.28 (606-20-2) ❑ ❑ C Mass lb/Day <0.00662
Di-n-octyl phthalate Concentration ug/L <1.6
4.29 117-84-0
( ) ❑ ❑ 0 Mass lb/Day <0.00331
1,2-Diphenylhydrazine Concentration ug/L <1.6
4.30 (as azobenzene) 122-66-7
( ) ❑ ❑ � Mass lb/Day <0.00331
4.31 Fluoranthene Concentration ug/L <1.6
(206-44-0) ❑ ❑ 0 Mass lb/Day <0.00331
Fluorene Concentration ug/L <1.6
4.32 ❑ ❑ El
(86-73-7) Mass lb/Day <0.00331

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Units Long-Term
Testing
(and CAS Number,if Required (specify) Maximum Maximum Average Long- Number
available) q Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
4.33 Hexachlorobenzene Concentration ug/L <1.6
(118-74-1) ❑ El ❑ Mass lb/Day <0.00331
Hexachlorobutadiene Concentration ug/L <1.6
4.34 ❑ � 17
(87-68-3) Mass lb/Day <0.00331
Hexachlorocyclopentadiene Concentration ug/L <8.0
4.35 ❑ � Ei
(77-47-4) Mass lb/Day <0.0166
Hexachloroethane Concentration ug/L <1.6
4.36 - -1
(6772 ) ❑ C l7 Mass lb/Day <0.00331
Indeno(1,2,3-cd)pyrene Concentration ug/L <1.6
•
4.37 193-39-5
( ) ❑ C C Mass lb/Day <0.00331
Isophorone Concentration ug/L <1.6
4.38 (78 59 1) ❑ ❑ 17 Mass lb/Day <0.00331
Naphthalene Concentration ug/L <1.6
4.39 ❑ ❑ 17
(91-20-3) Mass lb/Day <0.00331
Nitrobenzene Concentration ug/L <1.6
4.40 8 -
(g953) ❑ ❑ O Mass lb/Day <0.00331
N-nitrosodimethylamine Concentration ug/L <1.6
4.41 - 5-9
(627 ) ❑ Mass lb/Day <0.00331
N-nitrosodi-n-propylamine Concentration ug/L <1.6
4.42 ❑ � 7
(621-64-7) Mass lb/Day <0.00331
N-nitrosodiphenylamine Concentration ug/L <1.6
4.43 86-30-6
( ) ❑ ❑ ❑ Mass lb/Day <0.00331
Phenanthrene Concentration ug/L <1.6
4.44 (85-01-8) ❑ ❑ Mass lb/Day <0.00331
Pyrene Concentration ug/L <1.6
4.45 (129-00-0) ❑ ❑ C Mass lb/Day <0.00331

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))' OUTFALL 006
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Long
(and CAS Number, if (specify) Maximum Maximum Average Number
Required Believed Believed Number of Term
available) Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
1,2,4-trichlorobenzene Concentration ug/L <1.6
4.46 ❑ E n
(120 82-1) Mass lb/Day <0.00331
Section 4.Organic Toxic Pollutants(GC/MS Fraction-Base/Neutral Compounds)
Aldrin Concentration
5.1 ❑ ❑
(309-00-2) Mass
a-BHC Concentration
5.2 ❑ ❑ O
(319-84-6) Mass
13-BHC Concentration
5.3 (319-85 7) ❑ ❑ 0
Mass
y-BHC Concentration
5.4 ❑ ❑ C,
(58 89 9) Mass
b-BHC Concentration
55
(319-86-8) ❑ ❑ 0 Mass
Chlordane Concentration
5.6 ❑ ❑ O
(57-74-9) Mass
4,4'-DDT Concentration
5.7 (50-29-3) ❑ ❑ 0
Mass
4,4'-DDE Concentration
5.8 (72-55-9) ❑ ❑ ❑ Mass
,4,4'-DDD Concentration
5.9
(72-54-8) ❑ ❑ 0 Mass
Dieldrin Concentration
5.10 (60-57-1) ❑ 0 t] Mass
a-endosulfan Concentration
5.11 (115 29 7) ❑ ❑ C Mass

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
Testing Lon
(and CAS Number,if (specify) Maximum Maximum Average g Number
available) Required Believed Believed Number of Term
Daily Monthly Daily of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
13-endosulfan Concentration
5.12 (115-29-7) ❑ ❑ 0 Mass
5.13 Endosulfan sulfate Concentration
(1031-07-8) ❑ ❑ D Mass
Endrin Concentration
5.14 0
(72-20-8) Mass
5.15 Endrin aldehyde Concentration
(7421-93-4) 0 D 0 Mass
5.16 Heptachlor Concentration
(76-44-8) ❑ ❑ 0 Mass
Heptachlor epoxide Concentration
5.17 (1024-57-3) ❑ ❑ 1U Mass
PCB-1242 Concentration ug/L <0.40
5.18 (53469-21-9) Mass lb/Day <0.000828
PCB-1254 Concentration ug/L <0.40
5.19 (11097-69-1) ❑ ❑ CIMass lb/Day <0.000828
PCB-1221 Concentration ug/L <0.40
5.20 11104-28-2
( ) Mass lb/Day <0.000828
PCB-1232 Concentration ug/L <0.40
5.21 11141-16-5
( ) Mass lb/Day <0.000828
PCB-1248 Concentration ug/L <0.40
5.22 (12672-29-6
) Mass lb/Day <0.000828
PCB-1260 Concentration ug/L <0.40
5.23 11096-82-5
( ) Mass lb/Day <0.000828
PCB-1016 Concentration ug/L <0.40
5.24 12674-11-2
( ) Mass lb/Day <0.000828

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long Number
available) Required Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
Toxaphene Concentration
5.25 (8001-35-2) � Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
Presence or AbsenceI Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if available) (specify) Maximum Maximum Average Long Number
Believed Believed Number of Term
Present Absent Daily Monthly Daily of
Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the"Presence or Absence"column of Table C for each pollutant.
Bromide Concentration mg/L 1.3
1 (24959-67-9) E ❑ Mass lb/Day 2.69
Chlorine,total Concentration mg/L <0.028
2. residual D t7
Mass lb/Day <0.0579
Concentration <25.0
3. Color ❑ PI
Mass
Concentration CFU/100mL 24
4. Fecal Coliform PI ❑
Mass lb/Day
Fluoride Concentration mg/L <1
5. (16984-48-8) ❑ n Mass lb/Day <2.07
Concentration mg/L 1.0
6. Nitrate-nitrite t7 ❑
Mass lb/Day 2.07
Nitrogen, total Concentration mg/L 2.1
7organic(as N) n ❑
Mass lb/Day 4.34
Concentration mg/L <5
8. Oil and Grease D E
Mass lb/Day <10.3
Phosphorus(as P), Concentration mg/L <0.050
9. total 7723-14-0
( ) ❑ L7 Mass lb/Day <0.103
Sulfate(as SO4) Concentration mg/L 380
10. (14808-79-8) n o Mass lb/Day 786
Concentration mg/L <1.0
11. Sulfide(as S) n n
Mass lb/Day <2.07

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average
Discharge Discharge Discharge Value Analyses
(required) (if available) (if available)
12. Sulfite(as S03) Concentration mg/L 4.0
(14265 45 3) n Mass lb/Day 8.28
Concentration mg/L <0.1
13. Surfactants ❑ M
Mass lb/Day <0.207
14. Aluminum,total Concentration mg/L 0.163
7429-90-5 H CI( ) Mass lb/Day 0.337
15. Barium, total Concentration mg/L 0.029
(7440-39-3) M CIMass lb/Day 0.06
16. Boron, total Concentration mg/L 3.71
(7440 42 8) CI 0Mass lb/Day 7.68
17. Cobalt,total Concentration ug/L 4.78
(7440-48-4) n ❑ Mass lb/Day 0.00989
18 Iron, total Concentration mg/L 0.024
7439-89-6
n ❑
( ) Mass lb/Day 0.0497
19 Magnesium, total Concentration mg/L 34.3
(7439 95 4) n ❑ Mass lb/Day 71
20 Molybdenum, total Concentration ug/L 5.04
(7439-98-7) C] ❑ Mass lb/Day 0.0104
21. Manganese, total Concentration mg/L 0.413
(7439-96-5) m DMass lb/Day 0.855
22. Tin, total Concentration mg/L <0.01
(7440 31 5) ❑ n Mass lb/Day <0.0207
23 Titanium, total Concentration mg/L <0.005
(7440-32-6) ❑ PI
Mass lb/Day <0.0103

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence Intake
Effluent
(check one) (optional)
Pollutant/Parameter Units Long-Term
(and CAS Number, if (specify) Maximum Maximum Average Long- Number
available) Believed Believed Daily Monthly Daily Number of Term of
Present Absent Analyses Average Analyses
Discharge Discharge Discharge Value
(required) (if available) (if available)
24. Radioactivity
Concentration
Alpha, total ❑ p
Mass
Concentration
Beta,total ❑ p
Mass
Concentration
Radium,total ❑ p
Mass
Concentration
Radium 226,total p p
Mass

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
1 Asbestos ❑ CI
2. Acetaldehyde El El
3. Allyl alcohol El El
4. Allyl chloride ❑ El
5. Amyl acetate 0 El
6. Aniline El El
7. Benzonitrile 0 El
8 Benzyl chloride ❑ El
9. Butyl acetate 0 0
10. Butylamine 0 El
11. Captan ❑ ID
12. Carbaryl ❑ El
13. Carbofuran El El
14. Carbon disulfide El El
15. Chlorpyrifos El 0
16. Coumaphos ❑ El
17. Cresol 0 I:
18. Crotonaldehyde ❑ El
19. Cyclohexane 0 0

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
20. 2,4-D (2,4-dichlorophenoxyacetic acid) ❑ o
21. Diazinon ❑ C7
22. Dicamba ❑ El
23. Dichlobenil El E7
24. Dichlone El El
25. 2,2-dichloropropionic acid ❑ El
26. Dichlorvos El CI
27. Diethyl amine El El
28 Dimethyl amine ❑ El
29. Dintrobenzene ❑ f7
30. Diquat ❑ n
31. Disulfoton El El
32. Diuron ❑ CI
33. Epichlorohydrin El ❑
34. Ethion ❑ 0
35. Ethylene diamine El El
36. Ethylene dibromide ❑ El
37. Formaldehyde ❑ O
38. Furfural ❑ El

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS 440 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
39. Guthion ❑ P1
40. Isoprene ❑ 0
41. Isopropanolamine ❑ o
42. Kelthane ❑ o
43. Kepone ❑ P1
44. Malathion ❑ o
45. Mercaptodimethur ❑ o
46. Methoxychlor ❑ o
47_ Methyl mercaptan ❑ P1
48. Methyl methacrylate ❑ o
49. Methyl parathion ❑ []
50. Mevinphos ❑ o
51. Mexacarbate ❑ 111
52. Monoethyl amine ❑ ❑
53. Monomethyl amine ❑ o
54. Naled ❑
55. Naphthenic acid ❑
56. Nitrotoluene fl l7
57 Parathion ❑ P1

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS (40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
58. Phenolsulfonate ❑
59. Phosgene ❑ p
60. Propargite ❑ p
61. Propylene oxide ❑ p
62. Pyrethrins ❑ p
63. Quinoline ❑
64. Resorcinol ❑ p
65. Strontium ❑ p
66. Strychnine ❑ p
67. Styrene ❑
2,4,5-T(2,4,5- ❑ 0
68. trichlorophenoxyacetic acid)
69. TDE (tetrachlorodiphenyl ethane) n a
70 2,4,5-TP[2-(2,4,5-trichlorophenoxy) ❑ I i
propanoic acid]
71. Trichlorofon ❑ 0
72. Triethanolamine ❑ 0
73. Triethylamine ❑
74. Trimethylamine ❑ p
75. Uranium ❑ p
76. Vanadium ❑ p

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(v))1 OUTFALL 006
Presence or Absence
(check one) Available Quantitative Data
Pollutant Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present Absent
77. Vinyl acetate ❑ ci
78. Xylene ❑ ci
79. Xylenol ❑ p
80. Zirconium ❑1 p
Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant
parameters or required under 40 CFR chapter I, subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name
NCD043678937 NC0004979 Allen Steam Station
TABLE E.2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD)(40 CFR 122.21(g)(7)(viii)) OUTFALL 006
TCDD Presence or Absence
Pollutant Congeners (check one)
Used or Results of Screening Procedure
Believed Believed
Manufactured Present Absent
2,3,7,8-TCDD1 ❑ ❑
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under
40 CFR chapter I,subchapter N or O. See instructions and 40 CFR 122.21(e)(3).

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 1
Form 1 - Section 6 - Existing Environmental Permits

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 1
Form 1, Section 6 — Existing Environmental Permits
Issuing Agency Type of Permit Permit or ID Number
NCDEQ - DWR NPDES - WW NC0004979
NCDEQ - DWR NPDES - ISW NCS000546
NCG010000
NCDEQ - DWR NPDES - CSW GASTO 2009-001
GASTO 2021-013
GASTO 2021-014
GASTO 2023-001
NCDEQ - DAQ Title V 03757T49
NCDEQ - DWM EPA Hazardous Material Waste NCD043678937
Generator Number
Oil Spill Prevention Control and
NCDEQ - DWM Countermeasure Plan (SPCC)
incorporated into SWPPP
NCDEQ - DWM Industrial Solid Waste Landfill Permit No. 36-12
Permit

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 2
Form 1 - Section 7 - Maps

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State Grid/Quad: G14NE/Belmont
Receiving Streams: Catawba and South Fork Catawba Rivers Duke Energy Corporation
Stream Class: WS-IV B&WS-V B 8-Digit HUC 03050102 Al len Steam Station
Drainage Basin: Catawba River Basin Sub-Basin: 03-08-34
Latitude(001): 35°11'23" N Longitude(001): 81°00'45" W
Latitude(002): 35°10'30" N Longitude(002): 81°00'23" W
Latitude(002A): 35°11'34" N Longitude(002A): 81°00'22" W Facility
Latitude(002B): 35°11'36" N Longitude(002B): 81°00'30" W x
Latitude(003): 35°11'23" N Longitude(003): 81°00'45" W Location
Latitude(004): 35°11'35" N Longitude(004): 81°00'22" W
Latitude(006): 35°10'50" N Longitude(006): 81°00'49" W
Latitude(007): 35°11'54" N Longitude(007): 81°00'35" w NPDES Permit No. NC0004979
Latitude(008): 35°10'55" N Longitude(008): 81°00'24" W North Gaston County
Latitude(103): 35°10'31" N Longitude(1031: 81°00'22" W
Latitude(104): 35°10'32" N Longitude(104): 81°00'22" W
Latitude(108): 35°10'43" N Longitude(108): 81°00'23" W Map not to scale
Latitude(108B): 35°10'41" N Longitude(108B): 81°00'23" W

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 3
Form 2C - Section 2 - Line Drawing & Flow Balance

Allen Steam Station 2023 Water Schematic
Condenser Outfall 001
► Cooling /
Water 649 MGD South ForkRiver
Sanitary
Waste Landfill Outfall 002A
Leachate Intermittent Catawba River
(existing) __
—0 Coal Yard i Coal Handling
New Landfills Sump Sumps
Closed Loop Leachate 0.36 MGD
► BottomAsh Atm Storage Basin ► Stormwater Holding basin H—
System I
Internal 'I`
4' ► FGD / FGD WWTS Outfall 005 Outfall 002
0.5 MGD Stormwater
3.0 MGD
Water Catawba River
► Treatment FGD Wastewater
Atm Ash Silo
T Sump stormwater _ Ash Basin ► Treatment
Sump System
Seeps
Boiler
w Stormwater ►
► _� Turbine Room — 1.0 MGD
Catawba River Sumps 4..
Boiler Room / Yard Drainage Outfall 006
► Sump / Retention Basin 3.5MGD /
Sumps4 I ► Catawba River
Misc Equipol
Outfall 003
Cooling&Seals 4.5 MGD ►
1.2 MGD South ForkRiver
Limestone
Stormwater ► Groundwater ► Groundwater
Sump Infiltration Wells Extraction Wells
►Powerhouse Outfall 002B
/
Sump (Intermittent) Catawba River
► Intake Screen w Outfall 004 /
Backwash 6.5 MGD Catawba River
Asiatic Clam/
► Debris Filter /
Backwash * Flows are average estimates Catawba River
0 Alternative Flow Path

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 4
Form 2C - Section 3 - Outfall Flows, Contributing Operations and Treatment
Technologies

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
Attachment 4
Form 2C — Section 3 Flow, Sources of Pollution, and Treatment Technologies
The Allen Steam Station is a coal-fired electric generating plant with two operational units rated at a
maximum dependable capacity of 421 mw: Unit 1 at 162 MW and Unit 5 at 259 MW. Units 2, 3 and 4
were retired and disconnected from the grid in 2021. Located in Gaston County, North Carolina the two
units use No. 2 fuel oil for start-up and stabilization of the boiler flame. Water is withdrawn from the
Catawba River. River Water is passed through the once-through cooling system, then into the discharge
canal. River (service make up water) is added to the FGD absorber system to make up for absorber
evaporation loss.
Chemical constituents contained in the discharge from the permitted outfall will, in part, be representative
of the naturally-occurring chemical quality and quantity of the intake water and will also have chemical
constituents of such quality associated with similar discharges for generating facilities of this size, type,
and in this geographical location. Either all or part of the elements in the Periodic Table, either singularly
or in any combination, may from time to time be contained in the discharge.
OUTFALL INFORMATION
Outfall 001- Condenser Cooling Water (CCW)
The CCW system is a once-through, non-contact cooling water system that removes heat
rejected from the condensers and other selected heat exchangers and then discharges into the
South Fork River. Despite the retirement of Units 2-4, the CCW tunnels are all functional and in
use. Each of the 5 units at Plant Allen has two condenser cooling pumps. The number of pumps
used is dependent on unit load and intake temperatures with more pumps running with higher
loads and intake temperatures.
Units 1 and retired unit 2 share a common cooling water supply tunnel served by a total of 4 CCW
pumps. Retired Units 3 and 4 also share a tunnel and 4 CCW pumps. Unit 5 has a separate
tunnel and 2 CCW pumps. The common tunnel design enables three pumps to give Units 1 and 2
or 3 and 4 the equivalent of 1 1/2 pump operation . The 1 1/2 pump operation adds an economical
range or flexibility when units are on partial load and when intake water temperatures are
minimal.
Condenser Cooling Water Pump Capacities
Unit No. 1-PumpGPM 1.5-Pump GPM 2-PumpGPM
1 55,500 74,800 83,500
2 55,500 74,800 83,500
3 83,000 111,200 126,000
4 83,000 111,200 126,000
5 83,000 126,000
Note: Maximum cooling flow 545,000 GPM
All condenser tubes at Plant Allen are cleaned manually with metal or rubber plugs. Mechanical
cleaning is required once a year for most units. A leak test is performed periodically on the
condenser tubes. If leaks are suspected, then one method used to temporarily stop small leaks is
to add sawdust to the CCW system, as previously approved by NC DEQ. The sawdust is added
A4-1

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
at amounts that will plug the leaks and not result in an environmental impact. This is a temporary
measure until the unit can come off-line so the leaks can be permanently repaired.
Asiatic Clam/Debris Filter Backwash
Water for the Unit 5 CCW water is filtered for any twigs, leaves, and other light debris, which
passed through the intake screens. Asiatic clams, which are common in Lake Wylie and can clog
the condenser tubes, are also captured in this filter. This filter is backwashed once a week for 15
minutes. A maximum flow of 3000 GPD is realized. No additives are in the backwash water. The
twigs, leaves, clams and other light debris collected in the debris filter are indigenous to the river
and can be flushed back with no harmful environmental consequences.
Outfall 002 - Ash Basin
Treated wastewater is discharged via riser structure to the Catawba River. Ash pond dewatering,
miscellaneous stormwater flows, groundwater, and extracted groundwater are routed through a
temporary wastewater treatment system (WWTS). This system consists of 2 treatment steps. This
system consists of 2 steps before discharging to the Catawba River. Step 1., includes ballasted
clarification and addition of 25% Sodium Hydroxide, 37% -42% Ferric Chloride, and Polymer for TSS
control. Step 2., involves polishing via gravity filters. Dual pH and TSS monitors are configured in line. If
effluent water does not meet specifications, the discharge will automatically return to the ash basin.
Treated wastewater is discharged via riser structure to the Catawba River.
Outfall 002A - Coal Yard Sump Overflow
An overflow pipe that directs flow from the sump to the Catawba River was included in the construction of
the coal yard sump. This modification was implemented to prevent submergence and damage of the
pump motors within the sumps in the event that all pumps failed or redundant power supply lines could
not be restored in a timely manner.
Outfall 002B - Powerhouse Sump Overflow
An overflow pipe that directs flow from the sump to the ground was included in the construction of the
powerhouse sump. This modification was implemented to prevent submergence and damage of the pump
motors within the sumps in the event that all pumps failed or redundant power supply lines could not be
restored in a timely manner. If enough water overflows, the waste water could potentially discharge into
the Catawba River. Overflow has not occurred during the last permit cycle.
Outfall 003- Misc Equipment Cooling & Seal Water
Outfall 003 discharges into the CCW discharge canal. The discharge consists of cooling water from unit 5
boiler feedpump hydraulic coupling coolers and other miscellaneous equipment cooling. This water is
once-through, non-contact cooling water withdrawn from the service water system.
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Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
Outfall 004 - Equipment Cooling & Intake Screen Backwash
Equipment Cooling Water
Cooling water for boiler feed pump hydraulic coupling coolers and other miscellaneous equipment
is discharged through outfall 004. This water is once-through, non-contact water drawn from the
service water system. Allen has also added a chiller system for comfort cooling that is a once-
through, non-contact cooling water system and discharges back to the river via outfall 004.
Intake Screen Backwash
The intake screens at Plant Allen are flushed on an "as needed" basis. Backwash usually
averages 2 hours per shift. The average volume required is 0.053 MGD. The large debris floating
on the river is caught on the parallel bar screens. This trash is collected and disposed of in a
landfill.
(Internal) Outfall 005 - WWTS Effluent Discharge
FGD purge water is routed to a WWTS consisting of a physical-chemical process designed to precipitate
heavy metals and remove suspended solids. The clarified product water is routed to a series of
bioreactors designed for selenium and nitrate removal, and finally through an ultrafilter for further mercury
removal. The final product water is discharged to the primary retention basin via Outfall 005.
Outfall 006 — Lined Retention Basins (LRBs)
The LRB major basins consists of one 4.5 mgal holding basin, two 1.5 mgal primary basins and one
12.5 mgal final secondary basin.
Stormwater run-off
Storm water run-off is collected by a system of yard drains and is directed to the yard drainage
sump, the coal yard sump, the FGD storm water basin and the landfill leachate sump. The
powerhouse sump and the limestone storm water sump discharges its rainfall run-off into the yard
drainage sump.
Coal Pile Runoff
The coal pile runoff is routed to the concrete-lined holding basin. Flow volumes are related to
rainfall frequency and intensity.
Sanitary Wastes
Sanitary waste at Plant Allen is treated in a septic tank with the effluent from the septic tank being
discharged to the LRBs via the Coal Yard sump. Approximately 115 people are responsible for
the load on this system. An average flow of 4850 GPD is treated by the system. The drinking
water is supplied by City of Belmont Utilities Department.
Recirculating Water System (RCW)
Plant Allen has 2 RCW systems: a chiller system and a pump cooling water system. Both
systems use the biocide Nalco H-550 or similar products. In addition, the corrosion inhibitor Nalco
C-4710 or similar product is used. Generally, these systems are closed loop in nature, but may
A4-3

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
need to be drained occasionally. All such water would enter the floor drains and then be
discharged to the LRBs.
Miscellaneous Waste Streams
Heat Exchanger Cleaning
Periodically, it may be necessary to clean the small heat exchangers with polyacrylamide,
polyacrylate, sodium laurylsulfate and tri-sodium phosphate.
Condensate Polishers
Plant Allen utilizes condensate polishers which divert a portion of the normal condensate
(closed system) flow through one of two cells per unit. The polishers provide filtration as
well as ion exchange functions to remove or substantially reduce dissolved solids and
suspended matter present in the condensate stream. The polishers require precoating
with a combination of anion and cation resin. To facilitate precoating, 125-150 ml of a
solution of polyacrylic acid (25%) is added to the precoat slurry. Upon resin exhaustion,
the precoat is removed from the filters by water/air blasting and flushed to the LRBs via
the boiler sumps. Condensate water is used to remove the exhausted precoat at the rate
of:
o Unit 1 - 1558 gal/precoat
o Unit 5 -2090 gal/precoat
A total average waste flow of approximately 980 gallons per occurrence to the LRBs is
realized.
Condenser Leakage Testing
Fluorescing Dye Method -Approximately 1 lb. of a disodium fluorescing dye added to
280,000 gals of demineralized water is used occasionally to test the condensers for
leakage.
Helium Method - Periodically, helium is injected into the condenser tubes to locate
condenser tube leaks. Helium is a chemically inert, nonflammable, nontoxic gas with an
extremely low water solubility. Most of the helium gas would be volatilized during the
process.
FGD Stormwater Sump
Stormwater collected at FGD site including: the dry ash handling facility, gypsum pile,
WWTS area (not process water), stack, absorbers, switchgear building, dewatering
building, reagent prep building, and the control room area is routed to a large stormwater
collection basin prior to being pumped to the LRBs.
Landfill Leachate collection discharge
Industrial Solid Waste landfill (Permit No. 36-12) is permitted to accept coal combustion
byproducts (fly ash, bottom ash, gypsum, WWTS filter press sludge cake) consists of a
double liner with leachate collection system. This discharge is routed to the LRBs. New
A4-4

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
landfills are under construction and will be routed to the LRBs via a leachate collection
system and leachate collection pond.
Yard Drain Sump
The yard drain sump is a large concrete structure that has three level controlled pumps,
which pump wastewater from Plant Allen to the LRBs. These pumps are operated on a
rotating basis. The combined average flow from all sources tied to the yard drain sump is
approximately 4.0 MGD.
Boiler Room Sumps (Units 1-4)
The water which flows to the boiler room sumps originates from such sources as floor
wash water, boiler blowdown, water treatment waste, condensates, equipment cooling
water, sealing water and miscellaneous leakage (refer to the attached schematic of water
flow for individual flows). The effluent from the units 1 through 4 boiler room sumps is
flushed to the yard drain sump. The effluent from the unit 5 boiler room sump is flushed to
the power house sump, which is then flushed to the yard drain sump.
Turbine Room Sumps
The turbine room sumps accommodate flows from floor washing, leakage, and
occasional condenser water box drainage. Effluent from units 1 through 5 turbine room
sumps is flushed to the yard drain sump.
Limestone Unloading/Storage Area Sump
Limestone sump collects storm water from limestone unloading and storage area and
routes to D sump via PH sump discharge line.
Power House Sump (Unit 5)
The wastes, which enter the floor drains at Plant Allen, accumulate in the boiler room
sumps and turbine room sumps. The water which flows to the boiler room sumps
originates from such sources as floor wash water, boiler blowdown, water treatment
waste, condensates, equipment cooling water, sealing water and miscellaneous leakage.
Effluent from the unit 5 boiler room sump is routed to the powerhouse sump, which is
then flushed to the yard drain sump. This sump also receives storm water from various
drains located on the north end of the powerhouse.
Water Treatment System
The water treatment wastes consist of sedimentation, filter backwash, reverse osmosis
(RO) concentrate, demineralizer regeneration wastes and boiler blowdown. The make-
up water treatment system is comprised of a clarifier, two pressure filters, two activated
carbon filters, pre RO filters, a reverse osmosis unit and one set of demineralizers.
Make-up water is used in the boilers and closed cooling systems.
Clarifier:
The clarifier has an average production of 0.252 MGD. Caustic and ferric sulfate are used
to affect precipitation and thus remove suspended solids from the raw river water.
A4-5

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
Desludging of the clarifier takes place approximately 8% of the unit run-time with an
average volume of 2300 GPO.
Pressure Filters:
There are two pressure filters which follow the clarifier in the water treatment process.
These filters are backwashed once per week with a waste flow of 11,000 gallons per
backwash. Each pressure vessel will contain 84 ft3 of anthracite, 50 ft3 of quartz, 25 ft3
of garnet and 41 ft3 of garnet/quartz support media. Each vessel will use product water to
backwash at a rate of 750 gpm. On average, both vessels are backwashed once per
week. The contents of the pressure filters will be changed out, as internal maintenance
requires, and the used filter medium will be sluiced to the LRBs.
Activated Carbon Filters:
In addition to the pressure filters, there are two activated carbon filters. These filters are
backwashed twice per month. Approximately 30,000 gallons of water are required to
backwash each of these filters. The activated carbon filters are composed of
approximately 250 ft3 of granular activated carbon (coal).
Reverse Osmosis (RO) Unit:
A RO unit is used to decrease the conductivity in the filtered water, thereby increasing the
efficiency of the demineralizers and reducing the amount of chemical needed for
demineralizer regeneration. During operation, the unit has a continual blowdown of 60
gal/min, which is ultimately discharged to the LRBs via the boiler room sumps. The RO
unit is cleaned on a quarterly basis with the waste discharged to the LRBs via the boiler
room sumps. During a cleaning, approximately 30 lbs of a sulfamic acid cleaner along
with 5 gallons of biocide, 2 liters of sodium hydroxide, and 0.5 gallons of sodium lauryl
sulfate is used.
Demineralizer:
The demineralizer consists of two mixed-bed cells. Only one of these cells is operated at
any one time. The cell which is in operation is regenerated approximately once every 7-
14 days of operation. A regeneration requires 42 gallons of sulfuric acid (93%) and 150
gallons of 50% sodium hydroxide. An average dilute waste chemical and rinse flow of
20,000 gal is realized. The dilute acid and caustic are discharged to the floor drains
simultaneously through the same header for neutralization purposes. All regeneration
wastes are ultimately discharged to the LRBs via the boiler room sumps. The
demineralizer resin is changed out approximately once every 10 years and the spent
resin is sluiced to the LRBs.
Approximately 1 milliliter of the surfactant Triton CF-54 or similar product is added to the
new resin to improve separation.
Boiler Blowdown:
Each of the two operational boilers at Plant Allen blowdown at an average rate of
approximately 500 lbs. of steam per hour. The blowdown is allowed to flash in a
blowdown tank. Most of the blowdown is vented to the atmosphere with a minimal
amount of condensate discharged to the boiler room sump. The average condensate flow
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Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
to this sump is 0.002 MGD. Hydrazine is maintained at a concentration of 25 ppb in the
condensate system for deoxygenation.
Preheater Washes
Preheaters are backwashed with raw water on an as needed basis to remove ash and
corrosion products. There are 4 operational preheaters at Allen that would require
approximately 100,000 gallons of backwash water each.
Laboratory Wastes
The plant FGD and WWT chemistry laboratories on-site perform a variety of water
analyses and routine sample collections. Therefore, several chemicals are used in the lab
in small quantities for sample preservation, bottle rinsing, equipment calibration,
conductivity analyses, etc. The wastes are flushed down the sink and discharged into the
yard drain sump. Some of the laboratory chemicals are as follows: ammonia molybdate,
acetic acid, hydrochloric acid, monoethylamine, nitric acid and potassium hydroxide.
Selective Non-Catalytic Reduction (SNCR}
As part of the compliance with the North Carolina Clean Air Initiative (NCCAIR), Allen has
an urea-based "trim" Selective Non-Catalytic Reduction (SNCR) systems on both
operational units. The trim SNCR systems are expected to reduce NOx emissions by
approximately 30%. SNCR systems operate by injecting urea into the upper section of
the boiler where a chemical reaction occurs to reduce the NOx to water and nitrogen.
Flue Gas Desulfurization (FGD}
A Wet Flue Gas Desulfurization (FGD) system has been installed at Allen for the
reduction of SO from the stack gas. The following provides a description of the FGD
system at Allen.
In a Wet Scrubber system, the SO2 component of the flue gas produced from the coal
combustion process is removed by reaction with limestone-water slurry. The particular
system used at Allen collects the flue gas after it passes through the electrostatic
precipitator and routes the gas into the absorber tank. As the gas rises through the tank
to the outlet at the top, the gas passes through a spray header. A slurry of water and
limestone droplets is continually sprayed through this header into the stream of flue
gas. The SO2 in the flue gas reacts with the calcium in the limestone and produces SO3.
The S03 slurry falls to the bottom of the tank where a stream of air is injected to oxidize
the slurry to form gypsum (CaSO4•2H2O). The gypsum slurry is drawn off the absorber
tank and subsequently pumped to a vacuum belt filter. Part of the process water from the
FGD system is blown down to the FGD WWTS in order to maintain the FGD water
chemistry within the FGD system specifications.
The FGD system has a material handling system that supplies limestone to the scrubber
and a gypsum storage area for the gypsum removed from the process. The limestone
comes onto the site by rail and is then transferred to the FGD site via a covered
conveyor. The gypsum is routed from the FGD Filter Feed tank to a dewatering belt and
then to a covered conveyor belt that will carry it to a storage pile.
A4-7

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal Application
Extracted Groundwater System (GW CAP)
The current Allen Groundwater Corrective Action Plan (GW CAP) system consists of 27
extraction wells (23 actively operated). Groundwater is conveyed from the individual
extraction wells to a modular extraction system (MES) container (MEC) system where it
is manifolded together. After manifolding, the combined influent stream enters an
equalization tank. The equalization tank allows for the mixing of extracted groundwater
from individual extraction wells, resulting in homogenization of COI concentrations and
groundwater geochemical properties (e.g., pH, dissolved oxygen, oxygen-reduction
potential, and alkalinity). This mixing of extracted groundwater provides a more
predictable and consistent water quality and flow rate. The groundwater is then sent by a
transfer pump through bag filters to remove solids. From there the water is sent to one of
three tie-in locations the coal yard sump and then where it is conveyed to the Lined
Retention Basin to be prepared for discharge to NPDES Outfall 006.
Outfall 007 — Lined Retention Basin Emergency Spillway
Outfall 007 is the emergency spillway of the new Retention Basin. The spillway is designed for a flood
greater than 100-year event. This outfall discharges to the Catawba River.
Outfall 008 — Retired Ash Basin Emergency Spillway
Outfall 008 is the emergency spillway of the retired ash basin. The spillway is designed for a flood greater
than 100-year event. This outfall discharges to the Catawba River.
Outfalls 103, 104, 108, 108B — Toe Drains
Toe Drain Outfalls all discharge to the Catawba River, except outfall 104, which discharges to an
unnamed tributary to the Catawba River.
Ash Handling
Fly ash is handled dry by a pneumatic system and transported to the onsite permitting landfill. Bottom
ash is handled by a closed-loop submerged flight conveyer system (SFC) and transported to the onsite
permitted landfill.
Herbicide and Pesticide Usage in the Treatment System
Herbicides may be used as needed to control nuisance aquatic vegetation. These herbicides are applied
by licensed applicators, or persons under the immediate supervision of a licensed applicator, in
accordance with the manufacturer's instructions.
Pesticides may be used as needed to perform biological assessments. These pesticides are applied by
licensed applicators, or persons under the immediate supervision of a licensed applicator, in accordance
with the manufacturer's instructions.
A4-8

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 5
Form 2C — Section 8 - Used or Manufactured Toxics (Potential Discharges Not
Covered by Analysis)

Duke Energy Carolinas, LLC NPDES Permit NC0004979
Allen Steam Station 2023 Permit Renewal
Attachment 5
Form 2C — Section 8: Used or Manufactured Toxics - Potential Discharges Not
Covered by Analysis
Estimated
Quantity (per
Chemical year) Frequency Purpose
Steam Station
Ammonia < 150,000 gallons Continuous Urea for SCR system
Ammonium Hydroxide < 1000 gallons Continuous Boiler Water Treatment
Powerhouse
Ferric Sulfate <4,000 gallons Continuous Boiler Water treatment
Sodium Hydroxide(50%) < 10,000 gallons _ Continuous Boiler Water Treatment
Hydrazine <1000 gallons Continuous Boiler Water Treatment
Powerhouse
Sulfuric Acid < 1000 gallons Continuous Boiler Water Treatment
Ferrous Chloride <5,000 gallons Continuous (FGD Waste)Water Treatment
Hydrochloric Acid <10,000 gallons _ Continuous (FGD Waste) Water Treatment
Sodium Hydroxide(25%) —25,000 gallons Batch LRBs
MerControl'""8034+/8035 —15,000 gallons Batch FGD Absorber Treatment
Misc. Lab Reagents Trace Continuous Lab analysis
Vegetation Control
EPA Registration#524-343 As needed, Seasonal
Roundup Custom (Glyphosate) According to (As needed)
manufacturer
directions
EPA Registration#432-1565 As needed, Seasonal
Method (Aminocyclopyrachlor) According to (As needed)
manufacturer
directions
EPA Registration#432-1516 As needed, Seasonal
Esplanade(Indaziflam) According to (As needed)
manufacturer
directions
A5-1

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 6
NCDEQ NPDES Wastewater Permit— Condition A.(21) — Clean Water Act 316(a)
Full report has been submitted separately due to size of file.

e•oN DUKE Allen Steam Station
ENERGY 253 Plant Allen Road(NCSR 2525)
�, Belmont, NC 28012
o:828.478 7600
January 27, 2022
NC Division of Water Resources
Water Sciences Section
1623 Mail Service Center
Raleigh, NC 27699-1621
Subject: Duke Energy, LLC.
Allen Steam Station
NPDES Permit NC0004979
Dear Mr. Chris Johnson,
This letter and the attached materials are provided in support of Duke Energy Carolinas, LLC's(Duke
Energy)application to continue the thermal variance stated in the Allen Steam Station (Allen) NPDES
permit as required by condition A. (21.).The continuation of Duke Energy's thermal variance at Allen is
based on the enclosed comprehensive 316(a) studies undertaken in accordance with permit condition A.
(21.).
Duke Energy(then Duke Power Company)sponsored an initial 316(a)demonstration study for Allen
during 1973-1974 soon after the Clean Water Act(CWA) legislation was enacted in 1972. This included
intensive studies of the lake's ecology and chemical properties. Since then, Duke Energy has performed
fisheries and water quality sampling in Lake Wylie at varying frequencies from 1978 to the late 1980s,
and annually since 1993. These studies also included benthic macroinvertebrates and primary production
assessments at varying frequencies.The most recent balanced and indigenous community (BIC)report for
this sampling was submitted under the previous permit in 2014.
The current NPDES permitted thermal limits under§316(a)of the CWA for Allen's effluent include a
monthly average discharge temperature limit of 38.9°C during June 1 through September 31, and a
monthly average temperature limit of 35°C during October 1 through May 31. To maintain this variance
and in accordance with section A. (21) in the current NPDES permit, Duke Energy has conducted 316(a)
studies as outlined in the approved Study Plan and thus, is submitting the report within 3.5 years from the
effective date of the permit.
Results from the study found that current Allen operations will ensure the survival,reproduction,
development, and growth of representative important species(RIS). Moreover,the Allen thermal plume
has not blocked or inhibited access to any potential spawning habitat, spawning activities,or the
development of early juveniles of RIS. Despite warm water temperatures,the lake was found to have a
balanced and indigenous fish community.

If there are any questions, please contact either:
• Mr.Maverick Raber(Environmental Science Manager)980.875.2021, mavericksaber@duke-
cnergy.com
• Mr. Scott Fletcher(Environmental Science Manager)980.875.6014, scott.netcher@duke-
energy.com
I certify, tinder 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 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
General Manager III
UPS Tracking: 1Z X67 601 24 9139 0760

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 7
NCDEQ NPDES Wastewater Permit— Condition A.(22) — Clean Water Act Section
316(b)
Full report has been submitted separately due to size of file.

DUKE Allen Steam Station
Plant Allen Roao
ENERGY Belmont,NC 28012
°
January 24,2022
North Carolina Department of Environmental Quality
Division of Water Resources
1617 Mail Service Center
Raleigh NC 27699-1617
RE: Duke Energy Carolinas,LLC
Allen Steam Station,NPDES Permit NC0004979
Part A. (22.)Clean Water Act Section 316(b)Submittal
Dear Sir or Madam:
In accordance with the provisions of NPDES Permit NC0004979,Part A. (22.),following and enclosed is
our timely submittal of the requested Clean Water Act§ 316(b) information for the Allen Steam Station.
Specifically,the Department has requested that the submitted 316(b)information be provided by January
31,2022. We believe that this submittal completely satisfies this obligation.
As detailed in the enclosed reports,the Allen Steam Station meets Best Technology Available for
impingement and entrainment through a system of technologies,including flow reductions resulting from
the retirement of three of the five Allen units during 2021.
The system of technologies alternative is justified due to the design of the intake structure and the intake
flow reductions associated with the retirements of Units 2, 3,and 4.
Please contact Michael Smallwood([e-mail],704-382-4117)or Elizabeth
Glenn ([e-mail], 980-737-0530)if there are any questions regarding this
submittal.
Sincerely,
6
Jeff Flank,
General Manager, Allen Steam Stati
Attachment: 316(b)study reports for Allen Steam Station(pdf)
Cc: North Carolina Department of Environmental Quality(pdf and hardcopy)
Water Sciences Section
1623 Mail Service Center
Raleigh NC 27699-1623

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 8
NCDEQ NPDES Wastewater Permit— Condition A.(23) — Fish Tissue Monitoring

(•s DUKE Allen Steam Station
le° 25ENERGY Duke EnergyR
3 Plant Allen Rd
Belmont, NC 28012
828 478-7600
Jan. 17, 2023
NC DEQ, Division of Water Resources NC DEQ, Division of Water Resources
WQ Permitting Section—NPDES Water Sciences Section
1617 Mail Service Center 1621 Mail Services Center
Raleigh, NC 27699-1617 Raleigh, NC 27699-1621
Attn: Sergei Chernikov Attn: Chris Johnson
Subject: Duke Energy Carolinas, LLC
Allen Steam Station
NPDES Permit NC0004979
Fish Tissue Monitoring of Lake Wylie Near Allen Steam Station
Greetings,
This transmittal includes a copy of the Fish Tissue Monitoring in Lake Wylie Near Allen Steam Station
report for review by the North Carolina Department of Environmental Quality (NC DEQ) as required by
the Allen Steam Station NPDES Permit NC0004979.
We look forward to your review and comments regarding the enclosed report. If you have any questions
related to this submittal, please contact either Randy Gantt at 704-829-2587 or michael.gantt@duke-
energy.com or Eric Morris at 980-875-3181 or [e-mail].
I certify, under penalty of low, that this document and all attachments were prepared under my direction of
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,
Jeffre lanaga
General Manager III
Allen Steam Station

Duke Energy Carolinas, LLC
Allen Steam Station
National Pollutant Discharge Elimination System Permit Number NC0004979
Attachment 9
NCDEQ NPDES Wastewater Permit— Condition A.(24) — Instream Monitoring

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