NC0025071_Industrial User_20180816

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Department of Public Utilities —Wastewater Treatment
August 16,2018
Monti Hassan
NCDENR/NC DWQ PERCS Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Industrial Wastewater Discharge Permit Renewal.
IU NO. 1005-Mohawk Industries, Inc. Karastan Division.
Dear Mr. Hassan,
Enclosed is the permit renewal for SIU Mohawk Industries, Inc. Karastan Division, permit NO. 1005.Also
you will see I have provided a permit synopsis, modification histories, permit application, last SIU
Inspection,and allocation table. Data summary sheets for Karastan were collected from January 1, 2017
through December 31,2017.
If you have any questions regarding this information, 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

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City of Eden
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CITY OF EDEN, NORTH CAROLINA
Permit No. 1005
To Discharge Wastewater Under the
Industrial Pretreatment Program
In compliance with Chapter 16-150 of the Code of Ordinances of the City of Eden,North
Carolina and 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.
Mohawk Industries, Inc. Karastan Division
712 Henry Street
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 City of Eden, Mebane Bridge WWTP NPDES NC0025071 located at 204 Mebane
Bridge Road, 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).
This permit will become effective October 1, 2018. This permit and the authorization to
discharge shall expire at midnight on September 30, 2023.
Signed this the 16th day of August 2018.
I . /�I.:.%s IA A.
Melinda S. Ward
Wastewater Superintendent
by Authority of the City Council
of the City of Eden

' Industrial User Pretreatment Permit (IUP)
PART I
ji
Specific Conditions
A. IUP Basic Information:
Receiving Control Authority&WWTP name: POTW NPDES#:
City of Eden,Mebane Bridge WWTP NC0025071
IUP Name: IUP Number:
Mohawk Industries,Inc. Karastan Division 1005
IUP Effective date: Pipe Numbers,list all regulated pipes:
October 1,2018 01
IUP Expiration date: IUP 40 CFR#(if applicable),or N/A:
September 30, 2023 N/A
•
B. IUP History.
Permit History Attached
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.
Continue operation of pretreatment consisting of a bar screen, parshall
flume, and flow meter and sampling equipment.
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 meetfinal effluent
limitations.
D.) Description of IUP Discharge(s):
1. Describe the discharge(s)from all regulated pipes. :
Discharge of wastewater generated by all industrial processes and all domestic
wastewater:from all sources at the facility. The drawing shows the location of
Discharge Pipe 01'.
2

' Industrial User Pretreatment Permit (IUP)
4 PART I
Specific Conditions
E.) Schematic and Monitoring Locations
The facility schematic and description of monitoring location(s) given below must
show enough detail such that someone unfamiliar with the facility could readily find
and identify the monitoring location(s) and connection to the sewer. Include and
identify all regulated pipes.
SEE ATTACHMENT
3

INDUSTRIAL USER PERMIT
MODIFICATION HISTORY
INDUSTRY
Karastan Rug Mill
IUP NUMBER
1U1005
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 2018 Permit Renewal
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 2013 Permit Renewal
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 2008 Permit Renewal: Numerical limits for the following
parameters were dropped due to being less than 5%
MAHL: Bod, TSS, Cadmium, Chromium, Copper,
Nickel, Lead, Zinc and Arsenic. These parameters
along with all other parameter listed in IUP will be
monitored by the IU each quarter for LTMP.
Increased Cyanide limit from 0.10 mg/L to 0.13 mg/L
to help IU achieve compliance with permit.
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 2005 Removal of Mercury limit due to reporting limit range
Modification # 2 variance for method 245 and having no problems with
Hg within the plant. Removal of Silver limit based on
historical data from IU showing no Silver discharge
and having no problems with silver within the plant
Increased cyanide limit to 0.100mg/I from 0.04mg/I to
help IU achieve compliance with permit. Changed
sample type of sulfide from composite to grab.
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
August 1, 2005 Average monthly flow limit added to permit due to
Modification # 1 change to City of Eden's NPDES permit flow limit.
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 2003 Permit Renewal: Since the last permit was issued in
August 2001, the following pollutants have appeared
in the discharge of the SIU above Sewer Use
Ordinance Limits. Included in this new permit are

1 C
, S
numeric limits for Arsenic and Cyanide. Monitoring
requirements for Molybdenum and Selenium.
Sampling for all parameters has changed from 5
consecutive days per 6 months to monthly monitoring.
Decreased numeric limits for BOD, pH, TSS,
Chromium, Nickel, Temperature and Mercury.
Increased numeric limits for Copper and Silver.
Removed monthly average flow.
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 2001 Permit Renewal
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
October 1, 1996 Permit Renewal
DATE MODIFIED . REASON & DESCRIPTION of MODIFICATION
March 4, 1994 Corrections made to the "sample type", weekly
flow limit deleted, mercury detection limit specified
to 0.0002 mg/L, reference to Part I, D, 3 corrected to
Part I, C, 3.
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
January 1, 1994 Permit Renewal
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
September 13, 1993 Fieldcrest Cannon, Inc. sold Karastan Rug Mill
to Mohawk, Inc.
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
August 1, 1991 Permit Extension to December 31, 1993
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
December 23, 1991 Permit Extension to September 1, 1992
DATE MODIFIED REASON & DESCRIPTION of MODIFICATION
July 1, 1987 This is revision No. 1, Changes: (1) Date signed
(2) Discharges Limitations Designated as Average
(3) BOD Limit Increased From 150 mg/L to 200
mg/L

PERMIT 1005
• r PAGE 3
I t
Part I. Effluent Limitations and Monitoring Requirements
A.) Description of Discharge:
PIPE DESCRIPTION
01 Discharge of wastewater generated by all industrial processes and all domestic
wastewater from all sources at the facility. The drawing shows the location of
Discharge Pipe 01.
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Ec*C
a®-ater r,
7,--7---_______________w BARSCREEN
V
PARSHALL FLUME SAMPLE
HOUSE
PIPE,01
I NY
BRIDGE STREET 0
PUMP STATION

IUP, Part 1 Section F:
Effluent Limits and Monitoring Requirements _
The Permittee may discharge from this specific
Pipe number- according to these specific dates, Receiving POTW name=> Mebane Bridge IU name=> Mohawk Industries,Inc.
effluent limits, and monitoring requirements Karastan Division
Receiving POTW NPDES#_> NC0025071 IUP#_> 1005
Effective date for these Limits=> October 1,2013 Pipe#_> 01
Expiration date for these Limits=> September 30,2018 40 CFR#_> N/A
if not applicable put N/A
THE LIMITS ON THIS PAGE ARE,(Check one below):
LIMITS for ENTIRE permit period => X
Concentration Limits Mass Limits Monitoring Frequency
Sample Required
Collection Laboratory
Monthly Monthly Method Detection
Daily Max Average Units Daily Max ; Average Units By Industry By POTW (C or G) Level_
1 Flow 1.2 0.850 MGD _ Daily 1/6 months meter
2 BOD mg/1 1/quarter* 1/6 months Composite 2mg/1
3 TSS mg/1 1/quarter* 1/6 months Composite 2mg/1
4 Temperature 40 C Monthly 1/6 months Grab
5 PH 6-11 SU Monthly 1/6 months Grab
OTHER PARAMETERS;Please List Alphabetically
6 ADMI _ _ Twice per week 1/6 months Composite 25
7 Ammonia(NH3) 1/quarter* 1/6 months Composite 0.1mg/1
8 Arsenic 1/quarter* 1/6 months Composite 0.01mg/1
9 Cadmium 1/quarter* 1/6 months Composite 0.002mg/1
10 Chromium 1/quarter* 1/6 months Composite 0.005mg/1
11 Copper 1/quarter* 1/6 months Composite 0.002mg/1
12 Cyanide 0.13 mg/I Monthly 1/6 months Grab 0.01 mg/1
13 Lead 1/quarter* 1/6 months Composite 0.01 mg/1
14 Mercury 1/quarter* 1/6 months Composite 0.0002mg/1
15 Molybdenum _ _ 1/quarter* 1/6 months Composite 0.10mg/1
16 Nickel 1/quarter* 1/6 months Composite 0.01 mg/1
17 Oil&Grease 1/quarter* 1/6 months Grab 5.0 mg/1
18 Phenol 1/Iuarter* 1/6 months Grab 0.01 m:
19 Selenium 1/quarter* 1/6 months Composite 0.01 mg/1
20 Silver 1/quarter* 1/6 months Com sosite 0.005m: 1
21 Sulfide 1/quarter* 1/6 months 0.10 m: 1
22 Zinc 1/quarter* 1/6 months Composite 0.01 mg/1
*Quarterly sampling shall be performed in the months of March,June, September and December.
1 r

' t- ' Industrial User Pretreatment Permit (IUP)_
PART I
Specific Conditions
G.) Definitions and Limit Page(s) 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.
5

Industrial User Pretreatment Permit (IUP)
PART II
ti -
General Conditions
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 wastestream, 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 City of Eden and shall be
sent to the following address:
Melinda S. Ward
Wastewater Superintendent
City of Eden
PO. Box 70
Eden,North Carolina 27289-0070
b.) If the sampling performed by the permittee indicates a violation,the permittee
shall notify the City of Eden 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 City of Eden 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 of Eden shall repeat the
sampling and analysis and receive-the results of the repeat analysis within 30
days after becoming aware of the violation.
3. 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.
6

Industrial User Pretreatment Permit (IUP)
{ PART II
5 !'
General Conditions
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 of Eden 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 permit. Any permit
noncompliance constitutes a violation-of the City of Eden Sewer Use Ordinance
and is grounds for possible enforcement action.
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, sludges, filter backwash, or other pollutants removed in the course of
treatment or control of wastewaters shall be disposed of in a manner such as to
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.
7

Industrial User Pretreatment Permit (IUP)
PART II
N
General Conditions
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 Quality, 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 three 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 Director of Public Works or his/her designees,
within a reasonable time, any information which the Director, his/her 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.
8

Industrial User Pretreatment Permit (IUP)
PART II
General Conditions
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 POTW Director 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 Actfor 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 preclude 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.
9

Industrial User Pretreatment Permit (IUP)
PART II
General Conditions
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
Town.
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 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 of Eden. Also see Part II, 30 below for additional reporting requirements for
spill/slug issues. Significant changes may include but are not limited to
10

Industrial User Pretreatment Permit (IUP)
PART II
General Conditions
(a) increases or decreases to production;
(b) increases in discharge of previously reported pollutants;
(c) discharge of pollutants not previously reported to the City of Eden;
(d) new or changed product lines;
(e) new or changed manufacturing processes and/or chemicals; or
(f) new or changed customers.
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 reissued 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 under
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 reissuedunder 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.
11

Industria l User Pretreatment Permit (IUP)
PART II
General Conditions
30. Potential Problems
The permittee shall provide protection from accidental 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 of Eden 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 of Eden.
12

Industrial User Pretreatment Permit (IUP)
PART III
Special Conditions
1. Slug/Spill Control Measures
In addition to the requirements in Part II, 30, the Permittee shall complete
installation and/or commence implementation, operation, and/or maintenance of
the following specific protection Measures, Activities, Plans. Etc. (Items without
specific completion dates, or marked as "Continuous." must be performed for the
entire duration of the permit):
Required
Completion/
Implementation
Description of Measure,Activity,Plan, etc. Date
Implement approved 2006 Slug/Spill Control Plan Continuous
The permittee shall provide updates to the City of Eden as required by Part II, 30,
of this IUP. Modifications to the measures shall be approved by the City of Eden
prior to installation/implementation. If a measure fails, the Control Authority
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 at for Pipe 001. The meter shall be calibrated every
year and documentation submitted to the Control Authority within 15
days. Modifications to the flow metering equipment shall be approved by the Control
Authority prior to installation. If a required flow measurement device fails, the Control
Authority shall be notified within 24 hours.
13

Industrial User Pretreatment Permit (IUP)
PART III
Special Conditions
4. Certified Laboratory Analysis
Pollutant analysis shall be performed by a North Carolina Division of Water
Quality 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 service promptly upon
receipt of regular bills as required in'the City of Eden Code of Ordinance, as
presently stated and is hereafter amended.
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.
14

j
Permit No. 1005
INDUSTRIAL USER PERMIT
SYNOPSIS
A. IU INFORMATION
Receiving POTW: City of Eden, Mebane Bridge Wastewater Treatment Plant
NC0025071
IU Name: Mohawk Industries, Inc. Karastan Division
Permit No. 1005
Pipe No., : 01
IUP Effective Date: October 01, 2018
IUP Expiration Date: September 30, 2023
IUP 40 CFR #: N/A
B. IU SURVEY & APPLICATION
Attached is a copy of the Industrial User Wastewater Survey and Application Form.
C. IU INSPECTION
Attached is a copy of the last inspection that was done on 3/27/17.
D. RATIONALE FOR LIMITATIONS:
As listed on the Permit Limits Pages, PART I, Section F.
1

r
Permit No. 1005
RATIONALE#1:
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 to determine what ranges of concentrations are currently
being discharged. To account for sample variability a factor was applied to the
monitoring data to determine the permit limit. Permit limits assigned by the Local.IUP
Control Authority can not result in an,Over Allocation situation for any pollutants.
Cyanide
RATIONALE#2a:
Categorical Industrial Limits,with no Over Allocation situation:
Check here if Combined Wastestream Formula(CWF) or other categorical limits calculations
were used. If used,Please attach calculations:
The following pollutants were assigned numerical limits in this IUP based on the categorical
regulations. These limits do not result in over allocations.
RATIONALE#3a:
Over Allocation Prevention, with IU pollutant reduction:
The following pollutants were assigned numerical limits in this IUP based on allocating
the Maximum Allowable Industrial Loading (MAIL) determined with the Headworks
Analysis (HWA) among all Industrial Users. The total loading of each pollutant from all
permitted discharges does not exceed•the MAIL. These limits do not result on over
allocations.
RATIONALE #3b:
Interim Limits for IU pollutant reduction:
The following pollutants were assigned:interim numerical limits in this IUP to allow time
for the industry to come compliance with final limits that will not in over allocations.
2

i
Permit No. 1005
RATIONALE #4:
4.) Other Rationale for Limitations: '
The following rationale was used for developing IUP Limits.
pH and Temperature limits were based on the City of Eden Utilities Ordinances,
Chapter 16, Article III. Wastewater System, general sewer use requirements. The
Daily Maximum Flow Limit and Monthly Average Flow was assigned to allow
Mohawk Industries, Inc. to meet production needs and to maintain reserve capacity
for the treatment plant.
RATIONALE #5a:
Non-Categorical Parameters where No Limit needed or assigned in an IUP:
The following pollutants were not assigned numerical limits in this IUP because the
loadings for these pollutants from this IU were less than 5% of the MARL. The loading
of these pollutants from this IU is considered insignificant at this time.
Pollutant Avg SIU mg/1 Avg SIU lbs/day 5%MAHL, lbs/day
Ammonia 5.27 ' 37.36 858.27
Arsenic .0029 .0206 0.05 .
BOD 84 . 241.97 1481
Cadmium .0005 .0035 0.1471
Chromium .0025 .0177 0.7045
Copper .0382 0.2708 4.5628
Lead .0025 .0177 0.8940
Mercury 0.00010 0.00071 0.00304
Molybdenum 0.0099 0.0702 0.5650
Nickel .0025 _ .0177 , 0.4470
Phenol 0.0693 0.2025 0.05
Sulfide .0500 0.3545 44.7015
Tss 27.52 ' 77.14 1267
Zinc .2183 1.5475 4.7965
Oil&Grease
3

Permit No. 1005
RATIONALE #5b:
Categorical Parameters with Waived Monitoring:
Monitoring is waived for the following categorical parameters (attach documentation of
waiver justification).
4

SIU INSPECTION FORM
City of Eden
Name Of Industry:l(areacsa0, IUP# I°"6
Address Of Industry: 117 genes.) Sic-eek- IUP Expiration Date:
sele.J, Ne 212.88
Industry Representatives: Title
Pleagor C.nlinee6A% fnanaset'-
POTW Representatives: Title
C\ct6 ' owe\\ Pre cea\rtzt.� Ccoc�: \oC
l.oa vleish&- Rtii e t ovetc\oc.
Date Of Inspection: 5-1- 18 Time Of Inspection: o R 0 D �pm
Purpose of Inspection: Annual Other(Describe)
POTW to which IU discharges Mebane. At;13e. Wct3T P NPDES#twco 2co1 i
Is SIU currently in SNC? 0 If yes,for what?
PART I-INITIAL INTERVIEW
Has anything changed since the last inspection or IUP application in the following:
COMMENTS
Product YES/
Raw materials used YES/4
Manufacturing processes YES/
Categorical,if applicable YES/ •
Production rate YES j
Number of employees YES/ 225
Number of shifts YES/NO 3 6iN'S.V5j. 2411.
Comments:
PART II -PLANT TOUR-Visit all areas where wastewater is generated or where there
are drains to the POTW.
Plant Tour Section A-PRODUCTION AND STORAGE AREAS
1. Are there floor drains in the production area? NO Where do they go?
2. Are production areas diked,contained,or othe ise constructed in such a way as to prevent harm to the
WWTP,especially from spills or slugs? YES/�0 Comments: Dye aced Vta5
3. Are there floor drains in the storage area? G/NO Where do they go? C:41 Sewec-
4. Are storage tanks and areas diked,contained,or oth ise constructed in such a way as to prevent harm
to the WWTP,especially from spills or slugs? YES/(N Comments: Area ►n dY, I ,c ce -
5. Are process and storage tanks and pipes labeled? �)/NO
6. How are off-spec raw materials,and products disposed of?
7. When is the production area cleaned? Oa:1v.
8. Is the wastewater from cleaning the production area discharged to the POTW? YES)NO
9. What non-process wastewaters are discharged to POTW? Fire 34 P?frx,01i.
Comments:
Title. SIU Inspection Form
Page 1

SIU INSPECTION FORM
City of Eden
PART II-Plant Tour Section B -PRETREATMENT SYSTEM
Ask the operator to describe pretreatment system.
1. Does operator seem knowledgeable about the system? NO Comments:
2. Are all units operational? 0 NO
3. How often does operator/maintenance .erson check system? t s\y
4. Is there an operator for each shift? tWit NO
5. How and when is sludge disposed of?
6. Is there a schedule for preventative maintenance? 6.0 NO
Comments:
PART II-Plant Tour Section C - SAMPLING POINT(S)AND FLOW
MEASUREMENT
(Collect a sample if desired.)
1. Does an outside lab complete sampling? NO If yes,name of lab. Qace•
2. If industry completes sampling,ask the industry representative to describe sampling procedures.
Comments: \itS•
3. Is flow measurement equipment operational? NO Comments:
4. Is there a calibration log for the flow meter? YES/ 0 Comments:
Comments:
PART III-EXIT INTERVIEW
Review monitoring records ascLuKier SIU records required by IUP.
1. Are files well organized? /NO Comments:
2. Are sample collection/chain-of-custody forms filled out properly? YES/NO Comments:
3. Do results in files agree with reports sent to POTW?•NO Comments:
4. Who has authority to shut down production should a spill or slug discharge occur? Qic,Aa Ina,Sscs (So%)
5. How does SIU inform employees of whom to call at POTW in case of spill/slug? Face Xo Ica<t•
If slug/spill plan is already required by P•, eview procedures.
6. Is SIU implementing slug/spill plan? 0 Comments:
Comments:
INSPECTION RESULTS
Slug/Spill Control Plan Needed? 4210" 0
Comments,Required Or Recommended Actions:
Title. SN Inspection Form
Page 2

SIU INSPECTION FORM
n City of Eden
Signature Of Inspectors) Date: 6-1-t S
Date: 5-1-v%
Spill Prevention:
Are chemicals handled or stored outside the facility?Yes( ) No(.-.) .-
If
"If yes,where does rainwater from these areas drain? FAe1.
Are chemicals handled or stored near floor drains in facility? Yes(' )
If yes,where do floor drains lead?
Are hazardous wastes generated or stored on site? Yes( ) No(IV
If yes,attach sheet addressing:
1. Name of waste
2. Type of waste—listed or characteristic
3. Hazardous characteristics
4. Annual quantity generated
5. Waste source(s)
6. Average quantity stored
7. Storage method and location
8. Disposal method
Area all hazardous wastes covered by a RCRA permit? Yes( ) No(�
If no,explain
Does the facility hold any other environmental permits? Yes( ) No( )
If yes,list type(Air,NPDES,RCRA,etc.),permit number and expiration date:
Permit Type Permit Number Expiration Date
NP 0£5-5)0(nw&&c( NSG-%l000d -Su1y,3I,L019
A.e 65719 Rik, .4"Ceirbe47 }ebili a64/7p/7o25
Additional Comments:
Title: SIU Inspection Form
Page 3

•
SIU INSPECTION FORM
t City of Eden
Inspection Checklist:
Review last year's inspection
Review schematics with facility layout
Review latest permit application(Take copy along)
Check and note date of last slug control plan (date)
Review most recent permit/modifications
Look at facility compliance history for past year
Equipment required for inspection:
Safety Shoes
Hard Hats
Safety Glasses
Protective Clothing
List of facility contacts
pH meter
Gas detector
Cooler
Sample containers
Chain of Custodies
Hearing Protection
Other
Title: SN Inspection Form
Page 4

Workbook Name : Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT Printed:4/9/2018,3:04 PM
Page 1 of 4
Allocation Table Spreadsheet Instructions:
Headworks last approved: 08/10/17 1)Applicable Values should be entered in the Heavy Bordered cells. Rest of worksheet is protected,password is
Allocation Table updated: 08/10/17 2)Formulas are discussed in the Comprehensive Guidance,Chapter 6,Section C.
Permits last modified: 03/01/18 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.
POTW” Mebane Bridge
NPDES#> NC0025071
FLOW BOD TSS
Industry Type Renewal Modification Date Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe of Effective Effective Permit Conc. Load Conc. Load
Count (please list v cy) number number Industry Date Date Expires MGD gal/day �m /I lbs/day /l lbs/day
1 Mohawk Industries,Inc. 1005 1 I 2273 10/1/2013 9/30/2018 0.8500 850,000_monitor monitor
2 Weil-McLain 1012 1 3444 8/1/2015 7/31/2020 0.0500 50,000 monitor monitor
3 Duke Power Leachate 1013 1 423.16 03/01/18 02/28/18 0.5000 500,000 monitor monitor
I
4
5
Column Totals=> 1.4000 1,400,000 i__0. 1 01
Basis=> NPDES Design Design
MAHL from HWA(lbs/day)_> NPDES Permitted Flow=> 13.5000 29611 25333
Uncontrollable Loading(lbs/day)_> 3.3890 3844 6246
Total Allowable for Industry(MAIL)(lbs/day)_> 10.1110 25767 19086
Total Permitted to Industry(lbs/day)_> 1.4000 0 0
MAIL left(lbs/day)=> 8.7110 25767 19086
Percent Allow.Ind.(MAIL)still available(%)_> 86.2% 100.0% 100.0%
Percent MAHL still available(%)_> 64.5% 87.0% 75.3%
5 Percent MAHL(lbs/day)_> 0.6750 1481 1267
c
IIWA.AT
kevised:December 2016

Workbook Name : Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT Printed:4/9/2018,3:04 PM
Page 2 of 4
Allocation Table
Headworks last approved: 08/10/17
Allocation Table updated: 08/10/17
Permits last modified: 03/01/18
Pores=, Mebane Bridge
NPDESip> NC0025071
Ammonia Arsenic Cadmium Chromium Copper Cyanide
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
Count (plmse hat a1ph beticy) number number mg/I lbs/day mg/1 lbs/day mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/I lbs/day
1 Mohawk Industries,Inc. 1005 1 monitor monitormonitor monitor monitor ' 0.1300 0.9216
2 Weil-McLain 1012 1 monitor ~�monitor _ 0.0292� 0.7131 2.0700 0.8632 0.6500 0.2711
3 Duke Power Leachate 1013 1 1.0467 monitor' monitor
4
r... memsEmmonsex immin
5
Column Totals=> 0 1.0467 0.0292 0.7131 0.8632 1.19271
Sludge
AS/Nit/TF Ceiling Sludge AS/Nit/TF Sludge AS/Nit/TF
Basis=> inhibition HASL Ceiling inhibition Ceiling inhibition
MARL from HWA(lbs/day)_> 14771.81 1.1797 0.4465 12.1252 17.4433 3.0775
Uncontrollable Loading(lbs/day)=> 293.95 0.1300 0.0113 0.1441 9.0502 0.1159
Total Allowable for Industry(MAIL)(lbs/day)=> 14477.86 1.0497 0.4352 11.9810 8.3930 2.9616
Total Permitted to Industry(lbs/day)_> 0.00 1.0467 0.0292 0.7131 0.8632 1.1927
MAIL left(lbs/day)_> 14477.86 0.0030 0.4060 11.2679 7.5298 1.7689
Percent Allow.Ind.(MAIL)still available(%)_> 100.0% 0.3% 93.3% 94.0% 89.7% 59.7%
Percent MAHL still available(%)_> 98.0% 0.3% 90.9% 92.9% 43.2% 57.5%
5 Percent MARL(lbs/days_> 738.59 0.0590 0.0223 0.60631 0.8722 0.1539
4
tIVVA.AT
Revised:December 2016
s

Workbook Name : Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT Printed:4/9/2018,3:04 PM
Page 3 of 4
Allocation Table
Headworks last approved: 08/10/17
Allocation Table updated: 08/10/17
Permits last modified: 03/01/18_
POTw=> Mebane Bridge
NPDESF> NC0025071
Lead Mercury Molybdenum Nickel Selenium Silver
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load
Count (please list,ipnaxncty) number number mg/1 lbs/day mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/I lbs/day mg/1 lbs/day
1 Mohawk Industries,Inc. 1005 1 monitor monitor monitor monitor monitor monitor
_
2 Weil-McLain 1012 1 0.6900 0.2877 monitor monitor 2.3800 0.9925 monitor' 0.2400 0.1001
3 Duke Power Leachate 1013 I monitor monitor�0 2.5020 monito 0.3700 1.5429
4
5 Iiimi __
Column Totals=> 0.2877 I 0.000000 2.5020 0.9925 1.5429 0.10011
Sludge Sludge
Sludge Ceiling Sludge Ceiling AS/Nit/TF
Basis=> Ceiling Stream Std HASL Ceiling HASL inhibition
MAHL from HWA(lbs/day)=> 4.8465 0.060726 1.0104 3.5195 2.3301 7.6937
Uncontrollable Loading(lbs/day)_> 0.1809 0.004805 0.0989 0.1102 0.1498 0.0707
Total Allowable for Industry(MAIL)(lbs/day)_> 4.6656 0.055921 0.9115 3.4092 2.1803 7.6230
Total Permitted to Industry(lbs/day)_> 0.2877 0.000000 2.5020 0.9925 1.5429 0.1001
MAIL left(lbs/day)_> 4.3779 0.055921 -1.5905 2.4167 0.6374 7.5229
Percent Allow.Ind.(MAIL)still available(%)_> 93.8% 100.0% -174.5% 70.9% 29.2% 98.7%
Percent MAHL still available(%)_> 90.3% 92.1 % -157.4% 68.7% 27.4% 97.8%
5 Percent MARL(lbs/day)_> 0.2423 0.003036 0.0505 0.1760 0.1165 0.3847
it
I
to
IfIWA.AT
Revised:December 2016
7 -

Workbook Name : Eden.MB.HWA.AT.2017.Final, Worksheet Name: AT Printed:4/9/2018,3:04 PM
Page 4 of 4
Allocation Table
Headworks last approved: 08/10/17
Allocation Table updated: 08/10/17
Permits last modified: 03/01/18
Pores=, Mebane Bridge
NPOES > NC0025071
Zinc Sulfide
Industry Permit Limits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load
Count (please bst a1phcy) number number mg/1 lbs/day mg/1 lbs/day
1 Mohawk Industries,Inc. 1005 1 monitor _monitor
2 Weil-McLain 1012 1 1.4800 0.6172
3 Duke Power Leachate 1013 1 monitor
4
5
Column Totals=> 0.61721 1 0.001
Sludge AS/Nit/TF
Basis=> Ceiling inhibition
MAHL from HWA(lbs/day)=> 35.3172 769.37
Uncontrollable Loading(lbs/day)=> 7.2752 1.41
Total Allowable for Industry(MAIL)(lbs/day)_> 28.0420 767.95
Total Permitted to Industry(lbs/day)_> 0.6172 0.00
MAIL left(lbs/day)_> 27.4248 767.95
Percent Allow.Ind.(MAIL)still available(%)_> 97.8% 100.0%
Percent MARL still available(%)_> 77.7% 99.8%
5 Percent MAHL(lbs/day)=> 1.7659 38.4683
t
HVuA.AT
Revised:December 2016