NC0021121_Industrial User_20191202

CITY OF MOUNT AIRY WWTP
P.O. Box 70
Mount Airy, NC 27030
December 2, 2019
Mr. Monti Hassan
NCDEQ/PERCS Unit RECEIVED
1617 Mail Service Center
Raleigh, NC 27699-1617 DEC 1 1 2019
Subject: Termination of Industrial User Permit#0001 NCDEQ/DWR/NPDES
Dear Mr. Hassan,
This letter is in reference to Hanesbrands, Inc. closing its West Pine Street Facility
on August 28, 2019. The City worked with Hanesbrands over the last few months as they
finished production and liquidated inventory. The City conducted an inspection
November 18 to ensure all discharges had cease.
The City will terminate I.0 Permit #0001 and remove Hanesbrands, Inc. from the
Pretreatment Program, effective December 5, 2019.
Enclosed with this letter you will find a copy of Industrial User Permit #0001, a copy of
the termination documentation sent to the industry, and an up to date Allocation Table.
Should you have any questions or concerns, feel free to contact me at [phone].
Sincerely,
m,„„
Christopher S. Marion
WWTP Supervisor
City of Mount Airy

CITY OF MOUNT AIRY WWTP
P.O. Box 70
Mount Airy,NC 27030
December 2, 2019
Mr. Carl Whitaker
Maintenance& Services Manager
Hanesbrands, Inc.
645 West Pine Street
Mount Airy,NC 27030
Subject: Termination of Industrial User Permit#0001
Dear Mr. Whitaker
This letter is to inform you that the City of Mount Airy will terminate your discharge
permit effective December 5, 2019. As per an inspection conducted on November 18 by
this department, all operations at the facility have stopped and the building is currently for
sale.
Therefore, the City has terminated I.0 Permit#0001 and has removed Hanesbrands, Inc.
from the Pretreatment Program, effective December 5, 2019.
Should you have any questions or concerns, feel free to contact me at [phone].
Sincerely,
_,2
Christopher S. Marion
WWTP Supervisor
City of Mount Airy

CITY OF MOUNT AIRY WWTP
P.O. Box 70
Mount Airy, NC 27030
December 2, 2019
To Whom It May Concern:
Effective December 5, 2019 at midnight,
The City of Mount Airy will hereby TERMINATE
Industrial User Permit #0001 , issued to HANESBRANDS,
INC. on July 1, 2016.
Anyone wishing to contest this Permit Termination should
contact Mr. Christopher S. Marion, during normal business
hours, at [phone].
This Permit shall not be resigned, transferred, sold,
reissued, relocated to a new premises, or changed without
the approval of the City of Mount Airy's WWTP.
Signature of WWTP Supervisor

PERMIT
Industrial User Pretreatment Permit (IUP)
To Discharge Wastewater Under the
Industrial Pretreatment Program
IUP Number #0001
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 Mount Airy Sewer Use Ordinance. The following Industry,
hereafter referred to by name or as the permittee:
Hanesbrands, Inc.
645 West Pine Street
Mount Airy, NC 27030
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 Mount Airy.
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 shall become effective July 1, 2016.
This permit and the authorization to discharge shall expire at midnight on June 30, 2021.
Signed this L dayof �l
fl , 2016.
hristopher S. Marion
WWTP Supervisor
IUP #: 0001
Page: 1

IUP, PART I,
Industrial User (IU) Specific Conditions
IUP, PART I, OUTLINE:
A.) IUP Basic Information
B.) IUP Modification History
C.) Authorization Statement
D.) Description of Discharges
E.) Schematic
F.) Effluent Limits & Monitoring Requirements
G.) Definitions & Limit page(s) notes
A. IUP Basic Information:
Receiving POTW name : POTW NPDES # :
City of Mount Airy NC0021121
IUP Name IUP Number
Hanesbrands, Inc. #0001
IUP Effective date : Pipe Numbers, list all
July 1, 2016 regulated pipes: #01
IUP Expiration date : IUP 40 CFR #
June 30, 2021 N/A
B. IUP Modification History:
Date Modified: Reason for & Description of modifications:
7/1/03 IUP Renewal. Increased limits for BOD and TSS. Reduced
limits for all other parameters except Copper, which remains
the same. Expires 6/30/07.
10/1/03 Changed IUP number back to original IUP number as per
Division recommendation.
9/15/06 Modify IUP to reflect industry's name change from Sara Lee
Sock Company to Hanesbrands, Inc.
7/1/07 IUP Renewal. Reduced limits for TSS and Zinc. No limit
imposed for Oil & Grease however does have monitoring
requirement. Expires 6/30/11.
7/1/11 IUP Renewal. No changes. Expires 6/30/16.
7/1/16 IUP Renewal. Increased limit for silver. Expires 6/30/21.
IUP #: 0001
Page: 2

IUP, PART I,
Industrial User (IU) Specific Conditions
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 Mount Airy.
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.
IIU Treatment Units
List all Treatment Units:
1. N/A
2. N/A
3.) The Permittee is hereby authorized to, if required by the City of Mount Airy
and after receiving Authorization to Construct (A to C) from the City of Mount
Airy, construct and operate additional pretreatment units as needed to meet
final effluent limitations.
D.) Description of IUP Discharge(s):
1. Describe the discharge(s) from all regulated pipes.
Pipe#01
The discharge consists of process wastewater, cooling water, and boiler
blowdown from textile manufacturing.
IUP#: 0001
Page: 3
I� -

IUP, PART I,
Industrial User (IU) 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.
IUP #: 0001
Page: 4

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IUP, Part I, Section F: Receiving POTW name => Mount Airy IU name => Hanesbrands, Inc
Receiving POTW NPDES#_> NC0021121 IUP# => 0001
Effluent Limits and Monitoring Requirements:
pipe number Effective date for these Limits => 7/1/2016 Pipe# => 001
The permittee may discharge from this specific
Expiration date for these Limits => 6/30/2021 40 CFR #_> N/A
according to these specific dates, effluent limits, and monitoring
requirements. THE LIMITS ON THIS PAGE ARE, (Check one below):
LIMITS for ENTIRE permit period =>
INTERIM Limits for period# 1 =>
INTERIM Limits for period#2 =>
FINAL Limits Page => X
Concentration Limits Mass-Based Limits Monitoring,Frequency Sample Required
CONVENTIONAL Daily Monthly Units Daily Monthly Units Collection Laboratory
PARAMETERS Max Avg. Max Avg by Industry by POTW Method Detection
1. Flow (C or G) Limits
MGD 0.525 0.425 MGD DAILY CONT. N/A
2. BOD mg/I 2300 1650 lbs/day 3/6 months C 2
3. TSS mg/I 900 500 lbs/day 3/6 months C 2
4. temperature Deg. C 55 Deg. C 3/6 months G N/A
5. pH Std. Units _ 5-11 Std. Units 3/6 months G N/A
OTHER PARAMETERS, Please list alphabetically
6. Arsenic mg/I Monitoring Requirement lbs/day 1/6 months C 0.01
7. Cadmium mg/I 0.03 0.02 lbs/day 3/6 months C 0.002
8. Chromium mg/I 0.3 lbs/day 1/6 months C 0.005
9. Copper mg/I 1 0.75 lbs/day 3/6 months C 0.002
10. Cyanide mg/I 0.2 0.1 lbs/day 3/6 months G
11. Lead 0 01
mg/I 0.1 lbs/day 1/6 months C 0 01
12. Mercury mg/I Monitoring Requirement lbs/day 1/6 months C
13. Molybdenum 0 0002
Y mg/I Monitoring Requirement lbs/day 1/6 months C 0.1
14. NH3 mg/I 20 lbs/day 1/6 months C
15 Nickel 0.1
mg/I 0.2 0.1 lbs/day 3/6 months C 0.01
16. Oil&Grease ' mg/I Monitoring Requirement Ibs/day 1/6 months G N/A
17. Selenium mg/I Monitoring Requirement lbs/day 1/6 months C
18. Silver 0 01
mg/I 0.3 lbs/day 1/6 months C 0.005
19. Zinc mg/I 2 1 lbs/day 3/6 months C
001
(See next section, IUP, PART I, Section G.)
for Definitions and Limit Page(s) notes:
IUP, PART I. Page: 5

IUP, PART I,
Industrial User (IU) Specific Conditions
G.) Definitions and Limit Page(s) notes:
In addition to the definitions in the City of Mount Airy Sewer Use Ordinance tf:c
following definitions 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 50 ml, collected
every hour during the entire discharge period on the sampling day.
Sampling day shall be a typical production, and discharge day.
2. Composite Sample, alternative definition, N/A for this IUP:
A composite sample for the monitoring requirements of this IUP is the
same as described above unless specifically defined below as the
automatic or manual collection of constant volume and constant time grab
samples collected and composited according to the following criteria:
specific volume of each grab sample = 200 milliliters
specific time interval between samples = 4 hours
total duration of sample collection period = 24 hours
total number of grab samples to be composited = 6 samples
3. Daily Monitoring Frequency
Daily Monitoring Frequency as specified in this IUP shall mean each
working day.
4. 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.
5. Instantaneous measurement
An Instantaneous measurement for the monitoring requirements of this
IUP is defined as a single reading, observation, or measurement.
IUP #: 0001
Page: 6

IUP, PART I,
Industrial User (IU) Specific Conditions
G.) Definitions and Limit Page footnotes: (continued)
6. Control Authority
a.) the POTW if the POTW's submission for its pretreatment program has beer
approved and that approval has not been subsequently withdrawn, or;
b.) the approval authority if the submission has not been approved or the
Division has subsequently withdrawn pretreatment program approval.
IUP #: 0001
Page: 7

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_ SANITARY SEWER

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
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 19. Transferability
Permittee
5. Duty to comply 20. Property Rights P s
Y 9
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 g 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 wastestream, body of water, or
substance. Monitoring points shall not be changed without notification to, and
approval by, the City of Mount Airy.
IUP #: 0001
Page: 8

2. Reporting
(A.) Monitoringresults obtained b the permittee p mittee shall be reported
specified by the City of Mount Airy. The report on form
postmarked no later than the twentieth day of
of the monthfollowine results g thell
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 Mount Airy at the
following address:
Attention: Christopher S. Marion
WWTP Supervisor
City of Mount Airy
P.O. Box 70
Mount Airy, NC 27030
(B.) If the sampling performed by the permittee indicates a violation, the
permittee shall notify the City of Mount Airy within 24 hours of become
aware of the violation. The permittee shall also repeat the sampling and
analysis and submit the results of the repeat analysis to the City within 30
days after becoming aware of the violation.
(C.) If no self-monitoring is required by this IUP, and the sampling performed
the Cityof Mount Airyindicatesp 9 P ed by
a violation the Ci
ty of Mount Airyshall
notify
the permittee within 24 hours of becoming aware of the viola
tion.
The City of Mount Airy shall sample for the applicable parameter within
30 days of becoming aware of the violation.
3. Test Procedures
Test procedures p ures for the analysis of pollutants p utants 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 .
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 permit. Any permit
noncompliance
p e constitutes a violation of the City of Mount Airy's Sewer Use
Ordinance and may constitute a violation of state and / or federal regulations.
Therefore anypermit
noncompliance
P mit is grounds for possible enforcement action.
IUP #: 0001
Page: 9

6. Duty to Mitigate - Prevention of Adverse Impact
The permittee shall take all reasonable steps to minim
ize or prevent any
discharge in violation
g o anon 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
yp s of treatment facilities is prohibited except when approved in advance by
the City. 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 thispermit
factors bey
ond the reasonable
because of
control of the permit
tee.ee. 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
noncompliance. g t for the
oncom p ance. The permittee has the burden of proof to provide evidence and
demonstra
te that none of the factors specifically lis
ted y above were responsible
for the noncompliance. p e
10. Right of Entry
The permittee shall allow the staff of the St
ate of Nor
th Carolina Department of
Environmental Quality
, Division of Water Resources, the Regional Administrator
of the Environmental Protection Agency, the City of Mount Airy, and/or their
authorized representatives, upon the presentation of credentials:
IUP #: 0001
Page: 10

1. To enter upon the permittee's premises where a real or potentier
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. P
Except for data determined to be confidential under the City of Mount Airy
Sewer Use Ordinance and state and
federal pretreatment regulations, all reports
prepared in accordance with terms of this permit shall be available for public
inspection at the City. As required by the Sewer Use Ordinance and state rules
effluent data shall not be considered confidential.
12. Duty to Provide Information
The permittee shall furnish to the WWTP Supervisor or his/her designees, within
a reasonable time, any information which the WWTP Supervisor, his/her
designee, or the Division of Water Resources 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 WWTP Supervisor prior to or together with any
reports to be signed by an authorized representative.
IUP #: 0001
Page: 11

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 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 Mount Airy 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.
IUP #: 0001
Page: 12

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 Mount Airy'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 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.
26. Construction
No construction of pretreatment facilities or additions thereto shall be begun until
Final Plans and Specifications have been submitted to the City and written
approval and an Authorization to Construct (A to C) have been issued.
27. Reopener
The permittee 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:
IUP #: 0001
Page: 13

1.) contains different conditions or is otherwise more stringent t E
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 contE.v- E 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. Reports of 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 of a non-routine,
episodic nature, a non-customary batch discharge, or a slugload as
the City's Sewer defined in
y Use Ordinance.
Additionally, the permittee shall notify by telephone the City immediately of all
discharges that could cause problems to the POTW including any slug loadings
as defined in the City's Sewer Use Ordinance. If the permittee experiences such
a discharge, they shall inform the POTW 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
with the City by the permittee within five (5) days, unless waived by the WWTP
Supervisor.
IUP #: 0001
Page: 14

PART III,
Industrial User Pretreatment Permit (IUP)
Special Conditions
1. Slug/Spill Control Plan
The permittee shall provide protection from accidental and slug discharges of
prohibited materials and other substances regulated by this permit. The
permittee shall develop a written slug/spill control plan and submit it to the City.
This plan shall include but is not limited to:
(a) A description of discharge practices, including non-batch discharges
(b) A description of stored chemicals
(c) Procedures for immediately notifying WWTP of slug discharges that would
cause a violation of CFR 40 CFR 403.5 (b), with procedures for the follow
up notification within five (5) days.
(d) If necessary, procedures to prevent adverse impact from accidental spills,
including inspection and maintenance of storage areas, handling and
transfer of materials, loading and unloading operations, control of plant site
run-off, worker training, building of containment structures or equipment,
measures for containing toxic organic pollutants (including solvents), and/or
measures and equipment for emergency response.
This plan shall be reviewed and/or revised if any of the following changes occur:
(a) Facility layout or design
(b) Process or operations
(c) Maintenance operations
(d) Hazardous chemicals used
IUP #: 0001
Page: 15

2. 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 continuous recording flow meter capable of measuring flows
with a maximum deviation of less than 10% from true discharge rates throughcL't
the range of expected discharge volumes. The devices shall be installed,
calibrated, and maintained to ensure accuracy. The meter shall be calibrated
every six (6) months by an outside contractor. Calibration log sheets shall be kept
on file for inspection purposes. 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. Flow Measurement Frequency and Reporting
The flow measurement frequency for pipe 01 required by this permit is
continuous. In addition, the total flow from pipe 01 must be recorded daily and
documented on the monthly flow summary report. All flow measurement records
shall be available during inspections by the City, the North Carolina Division of
Water Resources, and the EPA. The permittee shall provide a summary of these
flow values to the City on a monthly basis. These flow reports shall be submitted
to the City by the fifteenth (15) day of the following month. The example being the
January flow report shall be submitted to the City by February fifteenth (15).
5. 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.
IUP #: 0001
Page: 16

Workbook Name: City of Mount Airy HWA/AT 2015 Printed: 12/3/2019, 10:01 AM
Page 1 of 5
Allocation Table
Spreadsheet Instructions:
Headworks last approved: 05/20/16 1)Applicable Values should be entered in the Heavy Bordered cells. Rest of worksheet is protected,password is"2".
Allocation Table updated: 12/05/19 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
Permits last modified: 07/01/16 this AT worksheet are automatically entered from the HWA spreadsheet. This includes pollutant names in columns
AT through BK.
Po7W=> City of Mount Airy
NPDESC> NC0021121
FLOW BOD TSS
Industry Type Renewal Modification Date Permit Limits Permit Limits Permit I,imits
IUP INDUSTRY NAMES Permit Pipe of Effective Effective Permit Conc. I,oad Conc. Load
Count (pInsclistalphabetick) number number Industry Date Date Expires MGD gal/day m /I Ibs/da m /1 Ibs/da
1
2
3 ,
4
5 a
6
7 A —
8 .--� .._.._.
9
10 .���
Column Totals
Basis=> NPDES Design Design
MAUL from HWA(lbs/day)=> NPDES Permitted Flow=> 7.0000 11676 11676
Uncontrollable Loading(lbs/day)=> 1.4490 1955 1698
Total Allowable for Industry(MAIL)(lbs/day)_> 5.5510 9721 9978
Total Permitted to Industry(lbs/day)_> 0.0000, 0.00 0
MAIL left(lbs/day)=> 5.5510 9721.43 9978
Percent Allow.Ind.(MAIL)still available(%)_>
Percent MAHL still available(%)_> •
5 Percent MAHL(lbs/day)=> 0.3500 584 584
HWA.AT
Revised:November 2005

Workbook Name: City of Mount Airy HWA/AT 2015 Printed: 12/3/2019, 10:01 AM
Page 2 of 5
Allocation Table
Headworks last approved: 05/20/16
Allocation Table updated: 12/05/19
Permits last modified: 07/01/16
POTW” City of Mount Airy
NPDES#=s NC0021121
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. I,oad Conc. Load Conc. Load
Count (please list alphabeticlt) number number mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/1 lbs/day mg/I lbs/day
1
2
4
5
6
7
8 -
9
10 ' ���
Column Totals=> I
Digester Digester AS/N/Nit/TF Digester
Basis=> Inhibition Inhibition Stream Std inhibition Inhibition Stream Std
MAHI.from IIWA(lbs/day)=> 532.81 1.0230 0.5706 7.4677 18.4147 1.5186
Uncontrollable Loading(lbs/day)_> 192.87 0.0604 0.0121 0.0302 0.4121 0.0604
Total Allowable for Industry(MAIL)(lbs/day)=> 339.94 0.9626 0.5585 7.4375 18.0026 1.4581
Total Permitted to Industry(lbs/day)=> 0.00 0.0000 0.0000 0.0000 0.0000 0.0000
MAIL left(lbs/day)_> 339.94 0.9626 0.5585 7.4375 18.0026 1.4581
Percent Allow.Ind.(MAIL)still available(%)_>
Percent MAHL still available(%)_>
5 Percent MAIIL(lbs/day)_> 26.64 0.0512 0.0285 0.3734 0.9207 0.0759
HWA.AT
Revised:November 2005

Workbook Name: City of Mount Airy HWA/AT 2015 Printed: 12/3/2019, 10:01 AM
Page 3 of 5
Allocation Table
Headworks last approved: 05/20/16
Allocation Table updated: 12/05/19
Permits last modified: 07/01/16
PorN City of Mount Airy
NPDES , NC0021121
Lead Mercury Molybdenum Nickel Selenium Silver
Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit I.imits Permit Limits
IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. I,oad Conc. Load
Count (please listalphaberidc) number number mg/1 lbs/day mg/1 lbs/day mg/1 lbs/day mg/I lbs/day mg/1 lbs/day 1 mg/I lbs/day
I
'
3 —
4
s l6I
• , __7 a� I �� � i
8 1 - — ,
9 �._
10 t—� ,,�
Column Totals=>
AS/Nita
AS/Nit/TF F
Basis=> Stream Std Stream Std inhibition Stream Std inhibition
MARL from'TWA(lbs/day)=> 6.0353 0.032280 4.0221 0.9415 4.3238
Uncontrollable Loading(lbs/day)_> 0.0604 0.001329 0.6042 0.0604 0.0604 0.0302
Total Allowable for Industry(MAIL)(lbs/day)_> 5.9748 0.030951 3.9617 0.8811 4.2936
Total Permitted to Industry(lbs/day)=> 0.0000 0.0000 0.0000
MAIL left(lbs/day)_> 5.9748 #VALUE! 3.9617 #VALUE! 4.2936
Percent Allow. Ind.(MAIL)still available(%)_>
Percent MAHL still available(%)=>
5 Percent MAUL(lbs/day)=> 0.3018 0.001614 0.2011 0.0471 0.2162
HWA.AT
Revised:November 2005

r
Workbook Name: City of Mount Airy HWA/AT 2015 Printed: 12/3/2019, 10:01 AM
Page 4 of 5
Allocation Table
Headworks last approved: 05/20/16
Allocation Table updated: 12/05/19
Permits last modified: 07/01/16
POTW=> City of Mount Airy
NPOES#=> NC0021121
Zinc Total Nitrogen Total Phos. Oil & Grease d e
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 ca:asc Its:=roha cly7 number number mg/1 lbs/day mg/1 lbs/day mg/1 lbs/day mg/1 lbs/day mg/I lbs/day mg/I lbs/day
1
2 , �..
3 1
4
5 ■--�
6 —
7 ��
8 • -
9
10 I .� , . ...
Column Totals=> 0.0000 0.0000
AS/Nit/TF
Basis=> inhibition
MAHL from HWA(lbs/day)_> 24.8492
Uncontrollable Loading(lbs/day)=> 1.2568 437.2230
Total Allowable for Industry(MAIL)(lbs/day)_> 23.5924
Total Permitted to Industry(lbs/day)_> 0.0000 0.0000 0.0000
MAIL left(lbs/day)=> 23.5924
Percent Allow.Ind.(MAIL)still available(%)_> ####### #######
Percent MAHL still available(%)_> ####### #######
5 Percent MAHL(lbs/day)=> 1.2425
HWA.AT
Revised:November 2005