NC0025071_Revised Permit_20180223

of Eden
Department of Public Utilities - Wastewater Treatment
February 23, 2018
Monti Hassan
NCDENR/NC DWQ PERCS Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Revised Duke Energy Permit
Dear Mr. Hassan,
RECEIVED/DENWDWH
FEB 2 6 2018
Water Resources
Permitting section
Enclosed you will find the signed revised permit for Duke Energy, a letter
explaining the changes to the permit, and an updated allocation table. Thank you
for your assistance. If you or your staff has any questions regarding this
information, please contact Chris Powell, Pretreatment Supervisor, at 336-627-
1009 ext. 103.
Sincerely,
Chris Powell
Pretreatment Supervisor
Cc: Brad Corcoran, City Manager
Terry Shelton, Public Utilities Director
Melinda Ward, Wastewater Plant Superintendent
P. O. Box 70 • Eden, NC 27289-0070 • [phone] • Fax [phone]

City of Eden
jEDEN )1967-20171
Department of Public Utilities - Wastewater Treatment
February 23, 2018
Lawrence Sparks
Duke Energy/General Manager
864 S. Edgewood Rd.
Eden, N.C. 27288
Subject: Dan River Steam Station -IUP #1013- Discharge Permit
Dear Mr. Sparks,
Your revised Wastewater Discharge Permit (10 13) is enclosed. This permit is issued in response to
your permit renewal application, which was received by the City of Eden on 9/1/17. This new
permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
local Sewer Use Ordinance.
This permit will go into effect on March 1, 2018 and will expire at midnight on February 28, 2019.
Changes from the previous permit include increase in daily flow, removal of non -crucial
parameters, permit limits going from max limit to monthly average, updated waste flow diagram,
and addition of an Ultra Filtration System for pretreatment. We revised the limits for Molybdenum
and Arsenic as agreed upon by the State. As a reminder, a slug/spill plan will need to be available
for review along with the SDS sheets for each chemical within 30 days of you receiving the
previous letter for the Ultra Filtration System.
If any parts, measurement frequencies, or limit changes, contained in this permit are unacceptable to
you, you have the right to an adjudicatory hearing upon written request within thirty (30) days
following receipt of this letter. Unless such demand is made, this decision shall be final and
binding.
Thank you, for your continued cooperation with the City of Eden. If you have any questions or
concerns about this permit, please contact me at 336-627-1009 ext. 103.
Sincerely,
Chris Powell
Chief Operator/Pretreatment Coordinator
cc: Brad Corcoran, City Manager
Terry Shelton, Public Utilities Director
Melinda Ward, Wastewater Plant Superintendent

City of Eden
9
Department of Public Utilities — Wastewater Treatment
Permit No 1013
Leachate from Landfill & Ash Basin
To Discharge Wastewater under -the Industrial Pretreatment Program
In compliance with the provisions of North Carolina General Statute 143-215.1, any applicable federal
categorical pretreatment regulations, all other lawful standards, and regulations promulgated and adopted by the
North Carolina Environmental Management Commission and the City of Eden Sewer Use Ordinance, Chapter
16-150. The following Industry, hereafter referred to by name or as the permittee:
Industry name, pernnPee
Duke Energy, Dan River Combined Cycle Station
Facility Located at Street Address
864 South Edgewood Road
City State, Zip
Eden, North Carolina 27288
Is hereby authorized to discharge wastewater from the facility located at the above listed address into the
sanitary sewer collection system and the wastewater treatment facility of the Control Authority and/or
Municipality listed below:
IUP Control Authority and/or Municipality VJWTP name
City of Eden's Mebane Bridge WWTP
NPDES Number
NCO025071
WWTP Address
204 Mebane Bridge Road
City, State, Zip
Eden, NC 27288
In accordance with effluent limitations, monitoring requirements, and all other conditions set forth in Parts I, II,
and III of this Industrial User Pretreatment Permit (IUP).
Effective date, this permit and the authorization to mscharge shall become effective at midnight on this date
March 1, 2018
Expiration date, this permit and the authorization to discharge shall expire at midnight on this date
February 28, 2019
Signed this the 1 St day of March 2018.
,M1
Melinda S, Ward r
Wastewater Superintendent
By Authority of the City Council of the City of Eden

PANT I
Receiving Control Authority & WWTP name
Specific Conditions
IUP,
PART I, OUTLINE:'
A.)
IUP Basic Information
B.)
IUP Modification History
C.)
Authorization Statement
D.)
Description of Discharges
E.)
Schematic and Monitoring Locations
F.)
Effluent Limits & Monitoring Requirements
G.)
Definitions and Limit Page(s) notes
A. IUP Basic Information:
Receiving Control Authority & WWTP name
POTW NPDES M
City of Eden WWTP
NCO025071
IUP Name
IUP Number
Duke Energy, Dan River Combined Cycle; Station
1013
IUP Effective date
Pipe Numbers, list all regulated pipes
March 1, 2018
001
lUP Expiration date
IUP 40 CFR #
February 28, 2019
423.16
B. IUP History:
Effective Date
Renewal or
Modification
5/22/2016
Permit issued
1/25/2017
Expiration Date
Changed
7/12/2017
Permit Modification
2/7/2018
Permit Modification
Description of changes over previous IUP.
None
February 28, 2018
Molybdenum limit changed from 0.1 mg/L to 1.0 mg/L
Granted approval of an Ultra Filtration System for the
removal of arsenic effective immediately. Added additional
information about bag filter
3/1/18 Permit Renewal Removed some parameters, changed limits from daily max
to monthly average, and increased daily flow.

C.) Authorization Statement:
1.) The Permittee is hereby authorized to ,discharge wastewater in accordance with the effluent
limitations, monitoring requirements, and all other conditions set forth in this Industrial User
Pretreatment Permit (IUP) into the sewer collection system and wastewater treatment facility of the
City of Eden.
2.)
The Permittee is hereby authorized to continue operation of and discharge wastewater from the
following treatment or pretreatment facilities. These facilities must correspond to the treatment units
listed on both the application and inspection forms.
IU Treatment Units
List all Treatment Units Descriptions
-Ultra Filtration System -Pretreatment system designed for the removal of Arsenic from the
water generated from the dewatering wells in the primary basin
-Bag Filter -Filters out -sediment
3.) The Permittee is hereby authorized to, 'if required by the City of Eden and after receiving
Authorization to Construct (A to C) from the City of Eden, construct and operate additional
pretreatment units as needed to meet final effluent limitations.
D.) Description of IUP Discharge:
1. Describe the discharge(s) from all regulated pipes.
Pipe # 001, Description of Discharge
Discharge is from the existing ash basin, the contact storm water from the northeast side of the
property, which includes the area around the ash stacks and powerhouse, as well as leachate
from the new landfill for the existing coal ash
E.) Schematic and Monitoring Locations:
The facility schematic and description of monitoring location given below must show enough detail such
that someone unfamiliar with the facility could readily find and identify the monitoring location and
connection to the sewer. Include and identify all -regulated pipes.

PIPE DESCRIPTION
Discharge of wastewater generated by all industrial processes from all sources at the facility. The drawing
shows the location of Discharge Pipe 001.
PRIMARY
BASIN ULTRA WEIR BAC
EXTRACTION FILTRATION BOXES FILTER
WELLS
SECONDARY
BASIN
"FUTURE
DEWATERING"
CONTACT
CONTACT
STORMWATER
JVATER
"FUTURE
00.1
STORAGE
LEACHATE
REROUTE"
AREA
TANK
LANDFILL
LEACHATE
OUTFALL
001
DUK-- ENERGY PROGRESS I N'C,
a8N AVER STEA%1 STATION
ROCKINGHr't.41 COUNTY, NORTH CAROLINA
SCHEMA110 OF VVA1 Eh FLOW
SHEET S OF 3 I JANUtF1Y1018
PROPOSED WATER BALANCE
DETAIL FOR LEACHATE SYSTEM

IUP, Part 1 Section F:
Effluent Limits and Monitoring Requirements
Categorical 423.16 — Combustion Residual Leachate from Landfills, Pretreatment Standards
Existing Source (PSES)
The Permittee may discharge from Pipe 001 effective immediately and lasting until the
expiration of this permit for all existing sources. This discharge shall be limited and
monitored as specified below.
* Low Level Mercury Analytical Method: EPA 1631E
** No PCBs are allowed in discharge at any time.
G) Definitions and Limit Pages notes:
In addition to the definitions in the City of Eden's Sewer Use Ordinance, the following definitions and
requirements apply.
1. Composite Sample:
Unless defined differently below, a composite sample for the monitoring requirements of this
IUP, is defined as the automatic or manual collection of one grab sample of constant volume, not
less than 100 ml, collected every hour, during the entire discharge period on the sampling day.
Sampling day shall be a typical production, and discharge day.
2. Daily Monitoring Frequency
Daily Monitoring Frequency as specified in this IUP shall mean each day of discharge.
3. Grab Sample
Grab sample for the monitoring requirements of this IUP is defined as a single "dip and take"
sample collected at a representative point in the discharge stream
4. Instantaneous measurement
An Instantaneous measurement for the monitoring requirements of this IUP is defined as a single
reading, observation, or measurement
Concentration Limits
Monitoring Fre uency
Daily
Max
Monthly
Average
Units
By Industry
By POTW
Sample Collection
Method
(C or G)
Required
Laboratory
Detection Level
1
Flow
05
MGD
Daily
1/6 months
Meter
2
BOD
Monitor
mg/L
Monthly
1/6 months
Composite
2 mg/L
3
TSS
Monitor
mg/L
Monthly
1/6 months
Composite
2 mg/L
4
pH
6-11
SU
Weekly
1/6 months
Grab
5
Temperature
40
C
Monthly
1/6 months
Grab
OTHER PARAMETERS. Please List Al habeticall
6 1
Arsenic
0 251
mg/L
1/Monthly
1/6 months
Composite
0 01 mg/L
7
Antimony
0.10
m
1/Monthly
1/6 months
Composite
0 001 mg/L
8
Cadmium
Monitor
mg/L
1/Monthly
1/6 months
Composite
0 001 mg/L
9
Chromium
Monitor
mg/L
1/Monthly
1/6 months
Composite
0 005 mg/L
10
Lead
Monitor
mg/L
1/Monthly
1/6 months
Composite
0 005 mg/L
11
Mercury *
Monitor
ng/L
1/Monthly
1/6 months
Grab
2 5 ng/L
12
Molybdenum
06
mg/L
1/Monthly
1/6 months
Composite
0 005 mg/L
13
Nickel
Monitor
mg/L
1/Monthly
1/6 months
Composite
0 005 mg/L
14
Selenium
0.37
mg/L
I/Monthly
1/6 months
Composite
0 01mg L
15
Zinc
Monitor
mg/L
1/Monthly
1/6 months
Composite
0 01 mg/L
* Low Level Mercury Analytical Method: EPA 1631E
** No PCBs are allowed in discharge at any time.
G) Definitions and Limit Pages notes:
In addition to the definitions in the City of Eden's Sewer Use Ordinance, the following definitions and
requirements apply.
1. Composite Sample:
Unless defined differently below, a composite sample for the monitoring requirements of this
IUP, is defined as the automatic or manual collection of one grab sample of constant volume, not
less than 100 ml, collected every hour, during the entire discharge period on the sampling day.
Sampling day shall be a typical production, and discharge day.
2. Daily Monitoring Frequency
Daily Monitoring Frequency as specified in this IUP shall mean each day of discharge.
3. Grab Sample
Grab sample for the monitoring requirements of this IUP is defined as a single "dip and take"
sample collected at a representative point in the discharge stream
4. Instantaneous measurement
An Instantaneous measurement for the monitoring requirements of this IUP is defined as a single
reading, observation, or measurement

PART II
General Conditions
Outline of PART II,
1.
Representative Sampling
16.
Federal and/or State Laws
2.
Reporting
17.
Penalties
3.
Test Procedures
18.
Need to Halt or Reduce
4.
Additional Monitoring by Permittee
19.
Transferability
5.
Duty to comply
20.
Property Rights
6.
Duty to Mitigate
21.
Severability
7.
Facilities Operation, Bypass
22.
Modification, Revocation, Termination
8.
Removed substances
23.
Reapplication
9.
Upset Conditions
24.
Dilution Prohibition
10.
Right of Entry
25.
Reports of Changed Conditions
11.
Availability of Records
26.
Construction of pretreatment facilities
12.
Duty to provide information
27.
Reopener
13.
Signatory Requirements
28.
Categorical Reopener
14.
Toxic Pollutants
29.
General Prohibitive Standards
15.
Civil and Criminal Liability
30.
Reports of Potential Problems
1. Representative Sampling
Samples and measurements taken as required herein shall be representative of the volume and nature of the
monitored discharge. All samples shall be taken at the monitoring points specified in this permit and, unless
otherwise specified, before the effluent joins or is diluted by any other waste stream, body of water, or
substance. Monitoring points shall not be changed without notification to, and approval by, the permit issuing
authority.
2. Reporting
a.) Monitoring results obtained by the permittee shall be reported on forms specified by the City of Eden,
postmarked no later than the twentieth day of the month following the month in which the samples were
taken. If no discharge occurs during a reporting period (herein defined as each calendar month) in which
a sampling event was to have occurred, a form with the phrase "no discharge" shall be submitted.
Copies of these and all other reports required herein shall be submitted to the Municipality and shall be
sent to the following address:
City of Eden
Melinda S. Ward, Wastewater Superintendent
P. ®. Box 70
Eden, NC 27289
b.) If the sampling performed by the permittee indicates a violation, the permittee shall notify the Control
Authority and/or Municipality within 24 hours of becoming aware of the violation. The permittee shall
also repeat the sampling and analysis and submit the results of the repeat analysis to the Control
Authority and/or Municipality within 30 days after becoming aware of the violation.
c.) If no self-monitoring is required by this IUP, and the sampling performed by the City of Eden indicates a
violation, the City shall notify the permittee within 24 hours of becoming aware of the violation, and the
permittee shall sample for the applicable parameter and submit the results of this analysis within 30 days
after the POTW became aware of the violation.

Test Procedures
Test procedures for the analysis of pollutants shall be performed in accordance with the techniques prescribed in
40 CFR part 136 and amendments thereto unless specified otherwise in the monitoring conditions of this permit.
4. Additional Monitoring by Permittee
If the permittee monitors any pollutant at the location(s) designated herein more frequently than required by this
permit, using approved analytical methods as specified above, the results of such monitoring shall be submitted
to the City of Eden. The City may require more frequent monitoring or the monitoring of other pollutants not
required in this permit by written notification.
5. Duty to Comply
The permittee must comply with all conditions of this 1permit. Any permit noncompliance constitutes a violation
of the City of Eden's Sewer Use Ordinance and is grounds for possible enforcement action.
i
6 Duty to Mitigate - Prevention of Adverse Impact
The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this permit
which has a reasonable likelihood of adversely affecting human health, the POTW, the waters receiving the
POTW's discharge, or the environment. !
7. Facilities Operation, Bypass
The permittee shall at all times maintain in good working order and operate as efficiently as possible, all control
facilities or systems installed or used by the permittee to achieve compliance with the terms and conditions of
this permit. Bypass of treatment facilities is prohibited except when approved in advance by the City of Eden.
Bypass approval shall be given only when such bypass is in compliance with 40 CFR 403.17.
8. Removed Substances
Solids, sludge's, filter backwash, or other pollutants removed in the course of treatment or control of
wastewaters shall be disposed of in a manner such as tb prevent any pollutants from such materials from
entering the sewer system. The permittee is responsible for assuring its compliance with any requirements
regarding the generation, treatment, storage, and/or disposal of "Hazardous waste" as defined under the Federal
Resource Conservation and Recovery Act.
9. Upset Conditions
An "upset" means an exceptional incident in which there is an unintentional and temporary noncompliance with
the effluent limitations of this permit because of factors beyond the reasonable control of the permittee. An
upset does not include noncompliance to the extent caused by operational error, improperly designed or
inadequate treatment facilities, lack of preventative maintenance, or careless or improper operations.
An upset may constitute an affirmative defense for action brought for the noncompliance. The permittee has the
burden of proof to provide evidence and demonstrate that none of the factors specifically listed above were
responsible for the noncompliance
10. Right of Entry
The permittee shall allow the staff of the State of North Carolina Department of Environment and Natural
Resources, Division of Water Resources, the Regional! Administrator of the Environmental Protection Agency,
the City of Eden, and/or their authorized representatives, upon the presentation of credentials:
1. To enter upon the permittee's premises where a� real or potential discharge is located or in which records
are required to be kept under the terms and conditions of this permit; and

2. At reasonable times to have access to and copy records required to be kept under the terms and
conditions of this permit; to inspect any monitoring equipment or monitoring method required in this
permit; and to sample any discharge of pollutants.,
11. Availability of Records and Reports
The permittee shall retain records of all monitoring information, including all calibration and maintenance
records as well as copies of reports and information used to complete the application for this permit for at least
five (5) years. All records that pertain to matters that are subject to any type of enforcement action shall be
retained and preserved by the permittee until all enforcement activities have concluded and all periods of
limitation with respect to any and all appeals have expired
Except for data determined to be confidential under the Sewer Use Ordinance, all reports prepared in
accordance with terms of this permit shall be available for public inspection at the City of Eden. As required by
the Sewer Use Ordinance, effluent data shall not be considered confidential
12. Duty to Provide Information
The permittee shall furnish to the Wastewater Superintendent or their designee, within a reasonable time, any
information which the Superintendent, their designee, or the Division of Water Quality may request to
determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine
compliance with this permit. The permittee shall also furnish, upon request, copies of records required to be
kept by this permit.
13. Signatory Requirements
All reports or information submitted pursuant to the requirements of this permit must be signed and certified by
the Authorized Representative as defined under the Sewer Use Ordinance. If the designation of an Authorized
Representative is no longer accurate because a different individual or position has responsibility for the overall
operation of the facility, or overall responsibility for environmental matters for the company, a new
authorization satisfying the requirements of this section must be submitted to the Wastewater Superintendent
prior to or together with any reports to be signed by an authorized representative.
14. Toxic Pollutants
If a toxic effluent standard or prohibition (including any schedule of compliance specified in such effluent
standard or prohibition) is established under Section 307(a) of the Federal Clean Water Act for a toxic pollutant
which is present in the discharge and such standard or prohibition is more stringent than any limitation for such
pollutant in this permit, this permit may be revised or modified in accordance with the toxic effluent standard or
prohibition and the permittee so notified.
15. Civil and Criminal Liability
Nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for
noncompliance.
16. Federal and/or State Laws
Nothing in this permit shall be construed to pr--clude the institution of any legal action or relieve the permittee
from any responsibilities, liabilities, or penalties established pursuant to any applicable Federal and/or State law
or regulation.
17 Penalties
The Sewer Use Ordinance of the City of Eden provides that any person who violates a permit condition is
subject to a civil penalty not to exceed $25,000 dollars per day of such violation.

Under state law, (NCGS 143-215.6B), under certain circumstances it is a crime to violate terms, conditions, or
requirements of pretreatment permits It is a crime to knowingly make any false statement, representation, or
certification in any record or other document submitted or required to be maintained under this permit, including
monitoring reports or reports of compliance or noncompliance. These crimes are enforced at the prosecutorial
discretion of the local District Attorney.
18 Need to Halt or Reduce not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity to maintain compliance with the conditions of the permit.
19. Transferability
This permit shall not be reassigned or transferred or sold to a new owner, new user, different premises, or a new
or changed operation without approval of the City.
20. Property Rights
This permit does not convey any property rights in either real or personal property, or any exclusive privileges,
nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of
Federal, State or local laws or regulations.
21. Severability
The provisions of this permit are severable and, if any,provision of this permit or the application of any
provision of this permit to any circumstance is held invalid, the application of such provision to other
circumstances and the remainder of this permit shall not be affected thereby.
22 Permit Modification, Revocation, Termination
This permit may be modified, revoked and reissued or, terminated with cause in accordance to the requirements
of the City of Eden's Sewer Use Ordinance and North Carolina General Statute or implementing regulations.
23. Re -Application for Permit Renewal
The permittee is responsible for filing an application for reissuance of this permit at least 180 days prior to its
expiration date.
24. Dilution Prohibition
The permittee shall not increase the use of potable or process water or in any other way attempt to dilute the
discharge as a partial or,complete substitute for adequate treatment to achieve compliance with the limitations
contained in this permit.
25 Reports of Changed Conditions
The permittee shall give notice to the City of Eden of any planned significant changes to the permittee's
operations or system which might alter the nature, quality, or volume of its wastewater at least 180 days before
the change. The permittee shall not begin the changes;until receiving written approval from the City. Also see
Part II, 30 below for additional reporting requirements, for spill/slug issues.
Significant changes may include but are not limited to
(a) increases or decreases to production;
(b) increases in discharge of previously reported pollutants;
(c) discharge of pollutants not previously reported to the City; or
(d) New or changed chemicals.

26. Construction
No construction of pretreatment facilities or additions thereto shall be begun until Final Plans and Specifications
have been submitted to the City of Eden and written approval and an Authorization to Construct (A to C) have
been issued.
27. Reopener
The permit shall be modified or, alternatively, revoked and i eissued to comply with any applicable effluent
standard or limitation for the control of any pollutant shown to contribute to toxicity of the WWTP effluent or
any pollutant that is otherwise limited by the POTW discharge permit. The permit as modified or reissued
under this paragraph may also contain any other requirements of State or Federal pretreatment regulations then
applicable.
28. Categorical Reopener
This permit shall be modified, or alternatively, revoked and reissued, to comply with any applicable effluent
standard or limitation issued or approved Lmder Sections 302(b)(2)(C) and (D), 304(b)(2), and 307(a)(2) of the
Clean Water Act, if the effluent standard or limitation so issued or approved:
1.) Contains different conditions or is otherwise more stringent than any effluent limitation in this
permit; or
2.) Controls any pollutant not limited in this permit.
The permit as modified or reissued under this paragraph shall also contain any other requirements of the Act
then applicable.
29. General Prohibitive Standards
The permittee shall comply with the general prohibitive discharge standards in 40 CFR 403.5 (a) and (b) of the
Federal pretreatment regulations.
30. Potential Problems
The permittee shall provide protection from aezidental and slug discharges of prohibited materials and other
substances regulated by this permit. The permittee shall also notify the POTW immediately of any changes at
its facility affecting the potential for spills and other accidental discharge, discharge of a non -routine, episodic
nature, a non -customary batch discharge, or a slug load as defined in the Sewer Use Ordinance.
Additionally, the permittee shall notify by telephone the City of Eden immediately of all discharges that could
cause problems to the POTW including any slug loadings as defined in the Sewer Use Ordinance If the
permittee experiences such a discharge, they shall inform the City immediately upon the first awareness of the
commencement of the discharge. Notification shall include location of the discharge, type of waste,
concentration and volume if known and corrective actions taken by the permittee. A written follow-up report
thereof shall be filed by the permittee within five (5) days; unless waived by the City.
PART III
Special Conditions
1. Slug/Spill Control Measures
Submit Slug/Spill Control Plan in accordance with SUO [Section 16-133], Implement Upon POTW Approval.

The permittee shall provide updates to the City as required by Part II, 30, of this IUP. Modifications to the
measures shall be approved by the City prior to install;ation/implementation. If a measure fails, the City shall be
notified within 24 hours
2 Sludge Management Plan
Ninety days prior to the initial disposal of sludge generated by any pretreatment facility, the permittee shall
submit a sludge management plan to the Control Authority.
3. Flow Measurement Requirements
The permittee shall maintain appropriate discharge flow measurement devices and methods consistent with
approved scientific practices to ensure the accuracy and reliability of measurements of the volume of monitored
discharges Devices installed shall be a continuous recording flow meter capable of measuring flows with a
maximum deviation of less than 10% from true discharge rates throughout the range of expected discharge
volumes. The devices shall be installed, calibrated, and maintained to ensure accuracy. At the time of issuance
of the permit, this method consists of ultrasound discharge flow meter for Pipe 001. The meter shall be
calibrated every year and documentation submitted to the City within 15 days. Modifications to the flow
metering equipment shall be approved by the City prior to installation. If a required flow measurement device
fails, the City shall be notified within 24 hours.
4. Certified Laboratory Analysis
Pollutant analysis shall be performed by a North Carolina Division of Water Resources Certified Laboratory that
is certified in the analysis of the pollutant in wastewater.
5. Certified Operator
Pursuant to Chapter 90A-44 of North Carolina General Statutes, and upon classification of the facility by the
Certification Commission, the permittee shall employ a certified wastewater pretreatment plant operator in
responsible charge (ORC) of the wastewater treatment facilities Such operator must hold a certification of the
type and grade equivalent to, or greater than the classification assigned to the wastewater treatment facilities by
the Certification Commission. The permittee must also employ a certified backup operator of the appropriate
type and grade to comply with the conditions of Title 15A, Chapter 8A .0202. The ORC of the facility must
visit the wastewater facility as required; must properly manage and document daily operation and maintenance
of the facility; and must comply with all other conditions of Title 15A, Chapter 8A .0202. The permittee shall
submit a letter designating the operator in responsible charge to the Certification Commission or their designee
within thirty days after facility classification.
6. Operation and Maintenance of Pretreatment Facilities
The permittee shall establish an operation and maintenance program for all pretreatment facilities sufficient to
satisfy at a minimum the manufacturers' instructions and recommendations for all equipment. The City reserves
the right to establish stricter operation and maintenance schedules of equipment if it deems necessary for the
proper operations of the equipment. The permittee shall maintain a copy of the manufacturer's instructions at
the facility permitted herein and shall maintain records of operation and maintenance events taken place
sufficient to show compliance with such instructions.
7. Payment of User Charges
The permittee shall pay all user charges for City sewer services promptly upon receipt of regular bills as
required in the City of Eden Code of Ordinance.

8. Code of Ordinance
The permittee shall comply with all sections of Chapter 16 of the City's Code of Ordinance unless otherwise
specified in this permit.
1UP Synopsis
A. IUP Basic Information
Receiving POTW name:
POTW NPDES#-
Mebane Bridge WWTP
NC0025071
IUP name:
IUP Number:
Duke Power, Dan River Combined
1013
Cycle Station
IUP Effective date:
Pipe Numbers, list all regulated pipes:
March 1, 2018
001
IUP expiration date:
IUP 40 CFR#:
February 28, 2019
423.16
B. IUP Survey & Application form
Attached is a completed copy of the Industrial User Wastewater Survey & Application Form.
C. IU Inspection form
Attached is a copy of an Industrial User Inspection Form to be completed by the City within the next 12 months.
D. RATIONALE FOR LIMITATIONS:
As listed on the IUP Limits Pages, PART I, Section F of the IUP
Review of IU Monitoring Data, with no Over Allocation situation.
The following pollutants were assigned numerical limits in this IUP based on a review of monitoring data for
the permittee of stored wastewater to determine what ranges of concentrations could be discharged To account
for sample variability a factor was applied to the monitoring data to determine the permit limit No parameters
were above the 5% MARL. Permit limits assigned by the; City of Eden do not result in an Over Allocation
situation for any pollutants.
Arsenic
Antimony
Cadmium
Chromium
Lead
Mercury
Molybdenum
Nickel
Selenium
Zinc

Workbook Name: Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT
Allocation Table
Renewal
Headworks last approved
08/10/17
Allocation Table updated
08/10/17
Permits last modified
1 03/01/18
NCO025071
Column Totals =>
Basis=>
MAHL from HWA (lbs/day) =>
Uncontrollable Loading (lbs/day) =>
Total Allowable for Industry (MAIL) (lbs/day) =>
Total Permitted to Industry (lbs/day) =>
MAIL left (lbs/day) =>
Percent Allow Ind (MAIL) still available (%) =>
Percent MAHL still available
5 Percent MAHL (lbs/dav) =>
HWA AT
Revised December 2016
Spreadsheet Instructions
1) Applicable Values should be entered in the Heavy Bordered cells Rest of worksheet is protected, password is
,2„
2) Formulas are discussed in the Comprehensive Guidance, Chapter 6, Section C
3) HWA and AT worksheets in this workbook are linked Pollutant Names, MAHLs, Basis, and Uncontrollable load
in this AT worksheet are automatically entered from the HWA spreadsheet This includes pollutant names in
columns AT through BK
Type
Renewal
Industry
of
NP
INDUSTRY NAMES
Permit
Pipe
Count
(please list alpitabebcl))
number
number
1
Mohawk Industries, Inc
1005
1
2
Weil -McLain
1012
1
3
Duke Power Leachate
1013
1
4
870%
753%
0 6750
5
1267
Column Totals =>
Basis=>
MAHL from HWA (lbs/day) =>
Uncontrollable Loading (lbs/day) =>
Total Allowable for Industry (MAIL) (lbs/day) =>
Total Permitted to Industry (lbs/day) =>
MAIL left (lbs/day) =>
Percent Allow Ind (MAIL) still available (%) =>
Percent MAHL still available
5 Percent MAHL (lbs/dav) =>
HWA AT
Revised December 2016
Spreadsheet Instructions
1) Applicable Values should be entered in the Heavy Bordered cells Rest of worksheet is protected, password is
,2„
2) Formulas are discussed in the Comprehensive Guidance, Chapter 6, Section C
3) HWA and AT worksheets in this workbook are linked Pollutant Names, MAHLs, Basis, and Uncontrollable load
in this AT worksheet are automatically entered from the HWA spreadsheet This includes pollutant names in
columns AT through BK
Type
Renewal
Modification Date Permit Limits
of
Effective
Effective Permit
idustry
Date
Date Expires MGD gaUc
2273
1 10/1/2013
9/30/2018 085001 85(
423 16
Printed 2/22/2018, 3 31 PM
Page 1 of 4
Permit Limits Permit Limits
Cone Load Cone Load
1 140001 1,400,000
1 0
10
NPDES
Design
Design
NPDES Permitted Flow--> 135000
29611
25333
33890
3844
6246
10 1110
25767
19086
14000
0
0
87110
25767
19086
862%
1000%
1000%
645%
870%
753%
0 6750
1481
1267

Workbook Name: Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT Printed 2/22/2018, 3 31 PM
Page 2 of 4
Allocation Table
1 0
1 04671
1 00292
1 071311
08632
1 1 1927
Headworks last approved
08/10/17
AS/Nit/TF
Ceiling
Sludge
Allocation Table updated
08/10/17
AS/Nit/TF
Basis=>
inhibition
HASL
Ceding
inhibition
Ceding
Permits last modified
03/01/18
1477181
1 1797
04465
121252
174433
30775
Uncontrollable Loading (lbs/day) =>
Porw=> Mebane Bridge
0 1300
00113
01441
90502
01159
Total Allowable for Industry (MAIL) (lbs/day) =>
1447786
1 0497
JPDEs#=, NCO025071
119810
83930
29616
Total Permitted to Industry (lbs/day) _>
000
10467
00292
07131
08632
1 1927
MAIL, left (lbs/day) =>
Ammonia
Arsenic
Cadmium
Chromium
Copper
Cyanide
Percent Allow Ind (MAIL,) still available (4/o) =>
Industry
03%
Permit Limits
Permit Limits
Permit Limits
Permit Limits
Permit Limits
Permit Limits
1UP INDUSTRY NAMES
Permit
Pipe
Conc Load
Conc Load
Conc Load
Conc Load
Conc Load
Conc Load
Count (please listalphabe°cly)
number
number
m lbs/da
m lbs/da
m I lbs/da
m lbs/day
mgA lbs/da
mg/I lbs/da
1 Mohawk Industries, Inc
1005
1
monitor
monitor
monitor
Imonitor
monitor
0 1300 09216
2 Weil -McLain
1012
1
monitor
monitor
00700 00292
17100 07131
20700 08632
06500 02711
3 Duke Power Leachate
1013
1
02510 10467
monitor
monitor
4
5
Column Totals =>
1 0
1 04671
1 00292
1 071311
08632
1 1 1927
Sludge
AS/Nit/TF
Ceiling
Sludge
AS/Nit/TF
Sludge
AS/Nit/TF
Basis=>
inhibition
HASL
Ceding
inhibition
Ceding
inhibition
MAHL from HWA (lbs/day) =>
1477181
1 1797
04465
121252
174433
30775
Uncontrollable Loading (lbs/day) =>
29395
0 1300
00113
01441
90502
01159
Total Allowable for Industry (MAIL) (lbs/day) =>
1447786
1 0497
04352
119810
83930
29616
Total Permitted to Industry (lbs/day) _>
000
10467
00292
07131
08632
1 1927
MAIL, left (lbs/day) =>
1447786
00030.
04060
112679
75298
17689
Percent Allow Ind (MAIL,) still available (4/o) =>
100 0 %
03%
93 3 °%
940%
8970/
5970/
Percent MAI -11, still available (%) =>
98 0 %
03%
90 9 %
929%
5 Percent MAHL (lbs/day) =>
738 59
00590
0 0223
06063
0 8722
0 1539
HWA AT
Revised December 2016

Workbook Name: Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT
Allocation Table
Headworks last approved 08/10/17
Allocation Table updated 08/10/17
Permits last modified 03/01/18
Po-rw=.I Mebane Bridge
NPDES#=> I NCO025071
Printed 2/22/2018, 3 31 PM
Page 3 of 4
Column Totals =>
02877
1 0000000
25020
Lead
Mercury
Molybdenum
Nickel
Selenium
Silver
Sludge
Industry
Permit Limits
Permit Limits
Permit Limits
Permit Limits
Permit Limits
Permit Limits
IUP
INDUSTRY NAMES
Permit
Pipe
I
Cone Load
Cone Load
Colic Load
Cone Load
Cone Load
Cone Load
Count
(please hm alphabnd))
number
number
mg/1
1 lbs/da
m ]bs/da
mg/I lbs/da
mg/l lbs/da
mg/1 lbs/da
I
Mohawk Industries, Inc
1005
1
or
monitor
monitor
monitor
monitor
monitor
2
Weil -McLain
1012
1
t1bs/daym
0 6900877
monitor
monitor
23800 09925
monitor
02400 0 1001
3
Duke Power Leachate
1013
1
nitor
monitor
06000 25020
monitor
03700 1 5429-
987%
4
90 3 %
92 1 %
-157 4 %
687%
274%
978%
5 Percent MAHL (lbs/day) _>
0 2423
0 003036
5
0 1760
0 1165
03847
Column Totals =>
02877
1 0000000
25020
0 9925
1 5429
01001
Sludge
Sludge
Sludge
Ceding
Sludge
Ceding
AS/Nit/TF
Basis=>
Ceding
Stream Std
HASL
Ceding
HASL
inhibition
MAHL from HWA (lbs/day) =>
48465
0060726
1 0104
3 5195
23301
76937
Uncontrollable Loading (lbs/day) =>
0 1809
0004805
00989
0 1102
0 1498
00707
Total Allowable for Industry (MAIL) (lbs/day) =>
46656
0055921
09115
34092
2 1803
76230
Total Permitted to Industry (lbs/day) =>
02877
0000000
25020
09925
1 5429
01001
MAIL left (lbs/day) =>
43779
0055921
-1 5905
24167
06374
75229
Percent Allow Ind (MAIL) still available (%) _>
93 8 %
100 0 %
-1745%
709%
292%
987%
Percent MAHL still available (%) _>
90 3 %
92 1 %
-157 4 %
687%
274%
978%
5 Percent MAHL (lbs/day) _>
0 2423
0 003036
00505
0 1760
0 1165
03847
HWA AT
Revised December 2016

Workbook Name: Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT
Allocation Table
Industry
Headworks last approved
08/10/17
Allocation Table updated
08/10/17
Permits last modified
03/01/18
Iylebane 1f
NCO025071
HWA AT
Revised December 2016
Printed 2/22/2018, 3 31 PM
Page 4 of 4
Industry
Permit Limits
Permit Limits
IUP
INDUSTRY NAMES Permit Pipe
Cone Load
Cone Load
Count
(plc IntApinkudy) number number
mg/1 lbs/day
mgA lbs/da
1
Mohawk Industries, Inc 1005 1
monitor
monitor
2
Weil -McLain 1012 I
14800 06172
3
Duke Power Leachate 1013 1
monitor
4
5
Column Totals =>
0 6172
000
Sludge
AS/Nit/TF
Basis=>
Ceding
inhibition
MAHL from HWA (lbs/day) =>
353172
76937
Uncontrollable Loading (lbs/day) =>
72752
141
Total Allowable for Industry (MAIL) (lbs/day) =>
280420
76795
Total Permitted to Industry (lbs/day) =>
06172
000
MAIL left (lbs/day) =>
274248
76795
Percent Allow Ind (MAIL) still available (%) —>
0780/
100.0
Percent MARL still available (%) =>
5 Percent MAHL (lbs/day) =>
1 7659
38 4683
HWA AT
Revised December 2016
Printed 2/22/2018, 3 31 PM
Page 4 of 4