NC0024333_Industrial User (CM-15)_20220523

-.4111 Monroe
North Carolina
May 20, 2022 RECEIVED
Mr. Larry Allen IViAY
EHS Manager 2 3 2022
ATI Allvac NCDEQ/DWR/NPDES
2020 Ashcroft Avenue
Monroe,North Carolina 28110
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Dear Mr. Allen:
Please find enclosed herein Industrial User Permit CM-15 authorizing ATI Allvac to continue to
discharge wastewater to the City of Monroe sewer system for further treatment at the City of
Monroe Wastewater Treatment Plant through June 30, 2025 and specifying the conditions
governing this discharge. All Significant Industrial permits are subject to review and approval by
NCDWR PERCS Unit. Please review this permit carefully in order to meet all requirements.
This IUP renewal/modification includes permit limit changes for Ammonia, Chromium,
Cyanide, Fluoride,Nickel and Zinc.
Consistent with the provisions of§ 52.051 of the City's Sewer Use Ordinance, the terms and
conditions of this permit are binding upon the industrial user.
§ 52.051 WASTEWATER PERMITS.
(I) Hearings.
(1) Initial Adjudicatory Hearings. An applicant whose permit is denied, or is granted
subject to conditions he deems unacceptable, a permittee/user assessed a civil penalty under §
52.999, or one issued an administrative order under § 52.120 shall have the right to an
adjudicatory hearing before the POTW Director or other hearing officer appointed by the POTW
Director upon making written demand, identifying the specific issues to be contested, to the
POTW Director within 30 days following receipt of the significant industrial user permit, civil
penalty assessment, or administrative order. Unless such written demand is made, within the time

specified herein, the action shall be final and binding and further appeal is barred. For modified
permits, only those parts of the permit being modified may be adjudicated. The hearing officer
shall make a final decision on the contested permit penalty, or order within 45 days y of the receipt
of the written demand for a hearing. The POTW Director shall transmit a copy of the hearing
Consistent with the provisions of§ 52.051 of the City's Sewer Use Ordinance, the terms and
conditions of this permit are binding upon the industrial user.
Should you require additional information please do not hesitate to contact me.
Respectfully,
Kevin Keesler
Pretreatment Coordinator
c: WWTP/IUP file
I:\8040 WWTP and Collection\Pretreatment program\Industries\ATI Allvac
City of Monroe • PO Box 69 • Monroe,NC 28111-0069
Tel: [phone] • Fax: [phone]
www.monroenc.org

City of Monroe WWTP
Municipality Name
hereafter in this permit to as the
Control Authority
PERMIT
Industrial User Pretreatment Permit(IUP)
To Discharge Wastewater Under the
Industrial Pretreatment Program
CM-15 - 471
IUP Number 40 CFR Category
(if Applicable)
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 Monroe
Sewer Use Ordinance. The following Industry,hereafter referred to by name or as the permittee:
Industry name,permittee:
ATI Allvac
Facility Located at Street Address:
2020 Ashcraft Avenue
City
Monroe
State,Zip
North Carolina, 28110
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 Monroe
listed below:
IUP Control Authority WWTP name:
City of Monroe WWTP
NPDES Number:
NC0024333
WWTP Address:
Post Office Box 69
State,Zip
Monroe,NC 28111-0069
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 discharge shall
become effective at midnight on this date:
July 1,2022
Expiration date,this permit and the authorization to discharge shall
expire at midnight on this date:
June 30,2025
S�.'? O ' 2 2
Date Director of Water Resources
Page:1
Effective Date:July 1,2022

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 and Monitoring Locations
F) Effluent Limits&Monitoring Requirements
G) Definitions and Limit Page(s)notes
A. IUP Basic Information
Receiving POTW name: POTW NPDES#:
City of Monroe Wastewater Treatment Plant NC0024333
IUP Name: IUP Number:
ATI Allvac CM-15
IUP Effective date: Pipe Numbers,list all regulated pipes:
July 1,2022 01,02
IUP Expiration date: IUP 40 CFR#(if applicable),or N/A:
June 30,2025 471
B. IUP History:
Effective Date: Renewal or Modification: Description of modifications:
7/1/95
permit issued
Date Modified
7/1/98 permit renewal
Date Modified
6/29/01 Permit extension
10/1/01 Permit renewal;name change;dropped
Silver on pipe 01.Limits changed on
pipe 02 for BOD,Chromium,Nickel;
dropped Cadmium,Mercury,Silver;
changed monitoring frequency for pipe
02;changed verbiage in PART I(F) 1),
PART II 17),PART II 29),PART III 1);
added TTO limit for pipe 01,added
PART III 7),changed verbiage for TTO;
added Mo,Al monitor only.
7/1/04 Permit issued; changed description
of discharge to include Hauled
wastewater from Allvac Bakers
facility, changed verbiage PART III
5.
A Complete Permit modification History is required
IUP#=>CM-15
Page: 2
Effective Date:July 1,2022

Effective Date: Renewal or Modification: Description of modifications:
1/1/07 Permit modification;changed detection
limit for cyanide
7/1/07 Renewal and Mod. Permit issued;changed PART I B.
heading;changed page 6 F)to G);
changed verbiage in PART I G) 1.,2.,
3.;changed verbiage in PART II 2.a),
b),c); 10.; 13.; 16.;25.;27.;30.;
changed verbiage in PART III 2.2.;2.3.;
added PART 7.;changed PART 7.to 8.
and changed verbiage;added PART III
9., 10., 11.
changed monitoring
7/1/10 Renewal Permit issued;
g
frequency for flow;changed verbiage in
PART I G)
7/1/13 Renewal Permit issued;name changed;changed
TSS detection limit;changed
monitoring frequency.
7/1/16 Renewal Permit issued
4/16/18 Modified Permit modified for Chromium and
Nickel due to updated 471 production
calculations.
5/3/19 Renewal and Mod. Permit issued;changed limits for
Ammonia,Chromium,Cyanide,
Fluoride,Nickel and Zinc.
7/1/22 Renewal and Mod. Permit issued;changed limits for
Ammonia,Chromium,Cyanide,
Fluoride,Nickel and Zinc.
IUP#=>CM-15
Page: 2A
Effective Date:July 1,2022

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 Monroe.
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:
Chemical Precipitation
Floculation
pH adjust
Sedimentation
Spill Protection
Filtration
3) The Permittee is hereby authorized to, if required by the City of Monroe and after
receiving Authorization to Construct (A to C) from the City of Monroe, 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,Description of Discharge:
Process wastewater and hauled wastewater from the Allvac Bakers facility
located at 1700 Teledyne Road Monroe,N.C.
Pipe#02,Description of Discharge:
Process and Domestic Wastewater, along with cooling tower blowdown and
cooling water
IUP#=>CM-15
Page: 3
Effective Date:July 1,2022

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. See map Page 4A.
IUP#_>CM-15
Page: 4
Effective Date:July 1,2022

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IUP,Part I, Section F: Receiving POTW name=>City of Monroe IU name=>ATI Allvac
Effluent Limits and Monitoring Requirements Receiving POTW NPDES#=>NC0024333 IUP#=> CM-15
Effective date for these Limits=>7/1/22 Pipe#_> 01
The permittee may discharge from this specific pipe Expiration date for these Limits=>6/30/25 40 CFR#=>471
number according to these specific dates,effluent if not applicable put N/A
limits,and monitoring requirements. THE LIMITS ON THIS ARE, (Check one below):
LIMITS for ENTIRE permit period=> X
INTERIM Limits for period# 1 =>
INTERIM Limits for period#2=>
FINAL Limits Page=>
Conventional Concentration Limits Mass-Based Limits Monitoring Frequency Sample Required
Parameters' Daily Monthly Units Daily Monthly Units by Industry by POTW Collection laboratory
Max Avg. Max Avg. Method Detection
(C or G) Limits
Flow MGD MGD Daily Every sample Meter
BOD mg/1 lbs/day
TSS mg/I lbs/day
Temperature Deg. C Deg. C
pH 6 to 11 Std.Units 6 to 11 Std.Units 4/6 Months' 1/6 months G
Other Parameters,Please list alphabetically
Ammonia 23 mg/1 lbs/day 4/6 months 1/6 months C .5 mg/1
Chromium .14 mg/1 lbs/day 4/6 months 1/6 months C .010 mg/1
Cyanide .09 mg/1 lbs/day 4/6 months 1/6 months G .010 mg/1
Lead .15 mg/1 lbs/day 4/6 months 1/6 months C .005 mg/1
Nickel .33 mg/1 lbs/day 4/6 months 1/6 months C .010 mg/1
Zinc .48 mg/1 lbs/day 4/6 months 1/6 months C .010 mg/1
Fluoride 23 mg/1 lbs/day 4/6 months 1/6 months C or G .1 mg/1
mg/1 lbs/day
TTO3 2.13 mg/1 1/6 months .010 mg/1
1 Parameters and Prohibitions not specified above are regulated and limited by the (See next section,IUP,Part I, Section G.)
City of Monroe Sewer Use Ordinance. for Definitions and Limits Page(s) notes:
2 4/6 months shall be 4 sampling events consisting of 1 day each every 6 months.. IUP,PART I,Page: 5
3 See Part Ill 4.
Effective Date:July 1,2022

IUP, Part I, Section F: Receiving POTW name=>City of Monroe IU name=>ATI Allvac
Effluent Limits and Monitoring Requirements Receiving POTW NPDES#=>NC0024333 IUP#=> CM-15
Effective date for these Limits=>7/1/22 Pipe#_> 02
The permittee may discharge from this specific pipe Expiration date for these Limits=>6/30/25 40 CFR#=>471
number according to these specific dates, effluent if not applicable put N/A
limits, and monitoring requirements. THE LIMITS ON THIS ARE, (Check one below):
LIMITS for ENTIRE permit period=> X
INTERIM Limits for period# 1 =>
INTERIM Limits for period#2=>
FINAL Limits Page=>
Conventional Concentration Limits Mass-Based Limits Monitoring Frequency Sample Required
Parameters' Daily Monthly Units Daily Monthly Units by Industry by POTW Collection laboratory
Max Avg. Max Avg. Method Detection
(C or G) Limits
Flow .124 MGD MGD Daily* Every sample Meter
BOD mg/1 310 lbs/day 4/6 Months2 1/6 Months C 2.0 mg/1
TSS mg/1 310 lbs/day 4/6 Months 1/6 Months C 2.5 mg/1
Temperature Deg. C Deg. C
pH 6 to 11 Std.Units 6 to 11 Std.Units 4/6 Months 1/6 Months G
Other Parameters,Please list alphabetically
Ammonia mg/1 24 lbs/day 4/6 months 1/6 Months C .5 mg/1
mg/1 lbs/day
Chromium mg/1 .14 lbs/day 4/6 months 1/6 Months C .010 mg/1
Copper mg/1 .26 lbs/day 4/6 months 1/6 Months C .010 mg/1
Cyanide mg/1 .09 lbs/day 4/6 months 1/6 Months G .010 mg/1
Lead mg/1 .1 lbs/day 4/6 months 1/6 Months C .005 mg/1
mg/1 lbs/day
Nickel mg/1 .34 lbs/day 4/6 months 1/6 Months C .010 mg/1
mg/1 lbs/day
Zinc mg/1 .30 lbs/day 4/6 months 1/6 Months C .010 mg/1
Aluminum monitor only mg/1 4/6 months C .005 mg/1
Molybdenum monitor only mg/1 4/6 months C .005 mg/1
1 Parameters and Prohibitions not specified above are regulated and limited by the (See next section,IUP,Part I, Section G.)
City of Monroe Sewer Use Ordinance. for Definitions and Limits Page(s)notes:
2 4/6 months shall be 4 sampling events consisting of 1 day each every 6 months. IUP,PART I,Page: 5A
*The flow meter totalizer shall be recorded each day of discharge with the data submitted as required in PART II(2).
Effective Date:July 1,2022

IUP, PART I
Industrial User (IU) Specific Conditions
G) Definitions and Limit Page(s) notes:
In addition to the definitions in the City of Monroe Sewer Use Ordinance the following
definitions and requirements apply:
1. Composite Sample:
a) A composite sample for the monitoring requirements of this IUP, is defined as the
automatic or manual collection of a series of grab samples of constant volume,not less
than 100 ml,collected at equal time intervals during the entire discharge period on the
sampling day. The time interval between grab samples shall be no greater than once
per hour,or
b) a single,continuous sample collected over a 24 hour period proportional to the rate
of flow. 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 over a period of time not
exceeding 15 minutes. The grab sample can be taken manually. Grab samples must be
representative of the discharge.
4. Instantaneous measurement
An Instantaneous measurement for the monitoring requirements of this IUP is defined as a
single reading,observation,or measurement.
IUP#=>CM-15
Page: 6
Effective Date:July 1,2022

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 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 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 Monroe, postmarked no later than the twentieth day of the month
following the month in which the samples were taken. Results based on laboratory
analysis shall include the laboratory report. 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 under the
signatory requirements of Part II, Section 13. Copies of these and all other reports
required herein shall be submitted to the City of Monroe to the following address:
Pretreatment Coordinator
City of Monroe
PO Box 69
Monroe,NC 28111
b) If the sampling performed by the permittee indicates a violation,the permittee shall
notify the City of Monroe 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 Monroe within 30 days after becoming aware of the
violation.
IUP#=>CM-15
Page: 7
Effective Date:July 1,2022

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
c) Laboratory reports shall include the following:
1. sample preparation-type and date(s) and time(s)performed;
2. analysis start dates and times;
3. analyst(s)initials;
4. analytical techniques and methods used;
5. results of the analyses;
6. chain of custody records which contain the following Information
a. sampling location;
b. date(s)/time(s) sample(s)taken;
c. sample type: composite(time,flow or hand)or grab
d. container type;
e. teflon liner and/or zero headspace,if applicable;
f. type of preservative used, if any;
g. sample iced upon receipt;
h. parameters to be run from that particular bottle;
i. individual(s)who performed the sampling and/or field measurements;
j. samples relinquished/received by who and when(date&time).
In addition,the laboratory performing the analysis shall maintain on file for up to three
years after the analysis all laboratory data taken and calculations during the analysis,
including dates and times, the analyst performing the work, and the data and
calculations from all quality assurance procedures and testing. This data shall be
available for inspection by personnel of the City of Monroe upon request.
3. Test Procedures
Test procedures for the analysis of pollutants shall be performed by a North Carolina Certified
Wastewater Lab in accordance with the techniques prescribed in 40 CFR part 136 and
amendments thereto unless specified otherwise in the monitoring conditions of this permit. The
laboratory shall be certified by the State of North Carolina for each specific test parameter on
which their results are reported.
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 Monroe. The City of Monroe 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 Monroe Sewer Use Ordinance and is grounds for possible
enforcement action; for Permit termination, revocation, and reissuance, or modification; or
denial of a Permit renewal application.
IUP#=>CM-15
Page: 8
Effective Date:July 1,2022

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
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 Monroe. Bypass approval shall be
given only when such bypass is in compliance with 40 CFR 403.17.Treatment facilities shall be
as diagrammed in Figure 2.
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 City of Monroe sewer system or the surface waters of the
State of North Carolina. 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. the permittee
shall maintain records of disposal of these substances for a minimum of three years.
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. Such evidence shall include
operating logs properly signed,or other relevant evidence that:
1. An upset occurred and that the permittee can identify the cause(s)of the upset;
2. The permittee facility was at the time being properly operated; and
3. the permittee submitted notice of the upset as required in Part H,Section 30,of
this permit
4. The permittee complied with any remedial measures required under Part II,
Section 5,of this permit
IUP#=>CM-15
Page: 9
Effective Date:July 1,2022

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
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 Monroe,and/or their authorized representative,
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 Monroe. 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 Water Resources 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 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
accompanied by the following certification by the Authorized Representative:
"I certify under penalty of law that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of
the person or persons who manage the system,or those persons directly responsible for
IUP#=>CM-15
Page: 10
Effective Date:July 1,2022

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
gathering the information,the information submitted is,to the best of my knowledge and belief,
true, accurate, and complete. I am aware that there are significant penalties for submitting
false information,including the possibility of fine or imprisonment for knowing violations."
The Authorized Representative shall be as defined by the City of Monroe 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 ofthe facility,
lzatior
overall responsibility for environmental matters for the company,
a new n
satisfying the requirements of this section must be submitted to the City of Monroe Water
Resources Director or his/her designee 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 preclude
liabilities,orinstitution of any legal penalt s established pursuant
anyto
relieve the permittee from any responsibilities,
any applicable Federal and/or State law or regulation.
17. Penalties person who violates a
The Sewer Use Ordinance of the City of Monroe s per day of such violap onmit
condition is subject to a civil penalty not to exceed$25,000 dollar
IUP#=>CM-15
Page: 11
Effective Date:July 1,2022
L

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
Under state law,(NCGS 143-21 reB)eatment permits certain circu 1 It isla crime to knowingly make any fstances it is a crime to violate a se
conditions,or requirements of p
statement,representation,or certification in any record or other document
submitted or required to be maintained under
this
crimes permit,
tare including
r enforced at itheing reports or
prosecutorial
reports of compliance or noncompliance. These
discretion of the local District Attorney.
The City of Monroe enforcement response will
Di vs►on of Environmental Management and
an Enforcement
Response Plan approved by the North Carolina
on file in the office of the Pretreatment Coordinator
18. Need to Halt or Reduce not a Defense
een
It shall not be a defense for a permittee d activityenforcement t maintain complain it would have
the conditions
necessary to halt or reduce the permit
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 of this permit or the
The provisions of this permit are severable and, if any provisionapplication
f applicationsuch is any provision icumstanceof this sland the remainder of this it to any circumstance is hpermit shall not be affected
of provision to other c
thereby.
22. Permit Modification,Revocation,Termination
This permit may be modified, revokedn nd reissued or terminated with cause in accordance
Monroe Sewer Use Ordinance and North Carolina General
with the requirements of the City of Mo
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 120
days prior to its expiration date. The permittee
deadlineisnot authori has not been to
discharge after the
expiration date of this permit if this re-application
24. Dilution Prohibition
The permittee shall not increase the use of potable
substitute forrocess aadequ to other way
to attemptchiee
to dilute the discharge as a partial or complete
compliance with the limitations contained in this permit.
IUP#=>CM-15
Page: 12
Effective Date:July 1,2022

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
25. Reports of Changed Conditions
The permittee shall give notice to the City of Monroe 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 60 days before the change. Such changes,however, do not stay any
condition of this permit. If the changes require additions or modifications to pretreatment
facilities to comply with this permit,all such modifications shall be approved and constructed
until es
before planned changes are made. The permittee shall not begin the changes receiving
written approval from the City of Monroe.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 of Monroe and written approval and an
Authorization to Construct has 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 for 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 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,and shall comply with the prohibitive
discharge standards in §52.020 and §52.023 of the City Sewer Use Ordinance except as
specifically stated otherwise in this permit.
IUP#=>CM-15
Page: 13
Effective Date:July 1,2022
L

PART II
General Conditions
Industrial User Pretreatment Permit (IUP)
30. Reports of Potential Problems
The permittee shall provide protection from accidential and slug discharges of prohibited
materials and other substances regulated by this permit. The permittee shall also notify the
City of Monroe immediately of any changes at its facility affecting the potential for spills and
other accidential discharge,discharge of a non-routine,episodic nature,a non-customary batch
discharge,or a slug load as defined in the City of Monroe Sewer Use Ordinance.
Additionally, the permittee shall notify by telephone the City of Monroe 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 Monroe Pretreatment Coordinator,telephone number(704)282-4632,if no answer,the
Wastewater Treatment Plant, telephone number [phone] and [phone], if no
anwer, the Wastewater Treatment Plant Superintendent, telephone number [phone]
immediately upon the first awareness of the commencement of the discharge. Leaving a
message will not be acceptable until all phone numbers listed above have been attempted.
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(5) days,unless waived by the City of Monroe.
IUP#=>CM-15
Page: 14
Effective Date:July 1,2022

PART III
Special Conditions
Industrial User Pretreatment Permit (IUP)
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 and
update,as required,a written slug/spill plan including procedures for preventing a slug or spill
which could cause a violation of the discharge standards of this permit. Any revision copy of
this plan shall be submitted to the City of Monroe no more than 60 days after the change(s)are
made.If no changes are made to the plan,a written statement to that effect must be submitted
to the City of Monroe on or before January 31, of each year throughout the duration of the
permit.The plan shall include the following at a minimum:
1) identification of all chemicals,by name,quantity,and storage location which would
cause a violation of this permit in the event of a spill and the means at each location to
prevent the spill from entering the City sewer system or surface waters of the State of
North Carolina.
2) who has the authority to halt production and/or wastewater discharge in the event
of a spill or upset condition(include phone numbers)
3) who is responsible for implementation and updating of the plan
4) the personnel that should be familiar with the plan
5) the person(s) responsible for notifying the City of Monroe immediately upon
discovery of a problem affecting the characteristics of the wastewater
2. Flow Measurement
1. The Permittee shall provide and operate monitoring facilities for the inspection,
sampling and flow measurement of the permittee's process wastewater discharges.
2. The permittee shall maintain appropriate discharge flow measurement devices and
methods consistent with approved engineering and 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 5% from true discharge rates throughout the
range of expected discharge volumes.
3. The approved wastewater meter shall be installed,maintained,and calibrated once
every six months.
4. The wastewater meter must have a non-resettable mechanical totalizer that reads in
gallons.
IUP#=>CM-15
Page: 15
Effective Date:July 1,2022

PART III
Special Conditions
Industrial User Pretreatment Permit (IUP)
5. Flow monitoring equipment and sampling point should be located in an area
accessible to the City of Monroe personnel without prior notification. The City of
Monroe must be supplied with any keys and/or other tools necessary to perform the
aforementioned.
6. There shall be no by-pass capability of the wastewater metering devices or the
sampling point.
7. The permittee shall maintain flow, maintenance, and calibration records for a
minimum of three years.
8. In the event of temporary unintentional failure of the flow meter,the permittee shall
notify the Pretreatment Coordinator as soon as possible,but in no case beyond 24 hours
after first becoming aware of the failure. Repair shall be under taken as quickly as
possible.
3. High Strength Surcharges
Notwithstanding any concentrations permitted for total suspended solids, 5 day BOD or
nitrogen ammonia stated in Part I, Section F of the Permit,the permittee shall be responsible
for the payment of high strength surcharges at rates that may be established in the future by
the Monroe City Council.
4. Total Toxic Organics
The term"Total Toxic Organics"shall mean the sum of the concentrations of each of the toxic
organic compounds listed in 40 CFR Part 433.11(e)which are found at concentrations greater
than 0.010 mg/1.
5. Total Toxic Organics Sampling
If there is a change in process which may result in discharge of Total Toxic Organics(TTO),
the permittee shall perform a TTO sampling event based on a sample that is characteristic of
the permittee's usual wastewater flow,and submit the laboratory results from this sampling
event to the City of Monroe Industrial Pretreatment Office within 45 days of the process
change.
6. Total Toxic Organics (TTO)Certification
In lieu of monitoring for TTO,the permittee may,upon submitting to the City of Monroe one
sample showing TTO compliance and a Toxic Organic Management Plan,provided no
process change affecting TTO has occurred,make the following certification every six month
compliance period:
IUP#=>CM-15
Page: 16
Effective Date:July 1,2022

PART III
Special Conditions
Industrial User Pretreatment Permit (IUP)
"Based on my inquiry of the person or persons directly responsible for managing compliance
with the permit limitation for total toxic organics (TTO),I certify that,to the best of my
knowledge,no discharging of concentrated toxic organics into the wastewater has occurred
since filing of the last monitoring report.I further certify that this facility is implementing the
Toxic Organic Management Plan submitted to the City of Monroe."
The certification statements are due on June 15 of each year covering the January through
June six month reporting period, and November 15 of each year covering the July through
December six month reporting period.
If the certification is not submitted for both periods within 7 days of the due date the City of
Monroe will collect TTO samples before December 31 and the permittee shall be billed for the
cost of the TTO sampling.
7. Toxic Organic Management Plan
Within sixty days of the effective date of this Industrial User Permit,the permittee shall develop
and submit to the City of Monroe a toxic organic management plan.
8. Production Records
The permittee shall keep records of the number of off-pounds of metal processed each day of
production for each core and ancillary operation covered by 40 CFR 471. These records shall
be submitted to the City of Monroe by January 31 of each year and shall cover the previous
calendar year. Additionally, the permittee shall notify the POTW director within two (2)
business days after the User has a reasonable basis to know that the production level will
significantly change within the next calendar month.40 CFR 403.6(c)(9).
9. Special Reopener
The City of Monroe reserves the right to reopen and modify/change limits and or sampling
frequency as deemed necessary.
10. Sludge Management Plan
Within sixty days of the effective date of this Industrial User Permit,the permittee shall submit
a sludge management plan to the City of Monroe.
IUP# CM-15
Page: 17
Effective Date:July 1,2022

PART III
Special Conditions
Industrial User Pretreatment Permit (IUP)
11. 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.
IUP#=CM-15
Page: 18
Effective Date:July 1,2022

IUP Synopsis
A. IUP Basic Information
Receiving POTW name: POTW NPDES#:
City of Monroe NC0024333
IUP name: IUP Number:
ATI Allvac CM-15
IUP Effective date: Pipe Numbers,list all regulated pipes:
July 1,2022 01,02
IUP expiration date: IUP 40 CFR#,if applicable:
June 30, 2025 471
B. IUP Survey&Application form
Attach a completed copyof the Industrial User Wastewater Survey&
p
Application Form (see appendix 6-A)
C. IU Inspection form
Attach a copy of an Industrial User Inspection Form (see chapter 7) completed
by the Control Authority within the past 12 months.
D. RATIONALE FOR LIMITATIONS:
As listed on the IUP Limits Page(s), PART I, Section F of the IUP.
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.
1

IUP Synopsis
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: (see CWF
Spreadsheet, Appendix 6-F)
Were not used Were used(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.
Pipe 01: Ammonia, Cr, Pb, Ni, Zn, Cn-, Fluoride, TTO
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 penuitted discharges does not exceed the
MAIL. These limits do not result on over allocations.
Pipe 02: BOD, TSS, Ammonia, Cr, Cu, Cn, Pb,Ni, Zn
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 result in over allocations.
2

IUP Synopsis
RATIONALE#4:
4.) Other Rationale for Limitations:
The following rationale was used for developing IUP Limits.
Parameter Rationale
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 MAHL. 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
H
RATIONALE#5b:
Categorical Parameters with Waived Monitoring:
Monitoring is waived for the following categorical parameters (attach
documentation of waiver justification).
7
3

yr._ '2 22 2.2 1L
rem. 2- 2-2-
AT
2020 Ashcraft Avenue, P.O. Box 5030, Monroe, NC 28110
phone: [phone] fax: [phone]
email: [e-mail]
February 16, 2022
Mr. Kevin Keesler
City of Monroe
P.O. Box 69
Monroe, NC 28111
RE: ATI SPECIALTY MATERIALS—MONROE SITE
PRETREATMENT PERMIT APPLICATION RENEWAL:
Dear Mr. Keesler:
Enclosed is the Pretreatment Permit Application (CM-15) for the Monroe Facility. Please feel free
to call me should you have any questions.
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete.
I am aware that there are significant penalties for submitting false information, including the
possibility of fine or imprisonment for knowing violations.
Sincerely,
41/11A( OSL- •
Larry Allen,
EHS Manager
ATI—Monroe

COVER PAGE
Company Name: ATI AI tv u,t�
Name of responsible person on site at the facility authorized to represent the Name of alternative on site person familiar with the day to day operations,
company in official dealings with the Sewer Authority and/or the City. environmental permitting requirements, monitoring, record keeping, and
Larry Allen data management. Tommy Long
Tide EHS Manager Years with firm 41 Tide Lead Environmental Tech Years with firm 47
Phone# [phone] Fax# [phone] Phone# [phone] Fax# [phone]
Physical street address of facility Official mailing address,if different. Note if same.
2020 Ashcraft Ave. PO Box 5030
City Monroe state NC zip 28111 city Monroe state NC Zip 28111
The information provided by you on this questionnaire serves two functions:
1. The information is used to determine if your facility needs an Industrial
User Pretreatment Permit (IUP) for the discharge of wastewater to the
local sewer.
2. If an Industrial User Pretreatment Permit (IUP) is required, this survey
serves as the application for an Industrial User Pretreatment Permit (IUP).
Requests for confidential treatment of information provided on this form shall be governed by
procedures specified in 40 CFR Part 2. In accordance with Title 40 of the Code of Federal Regulations
Part 403, Section 403.14 and the Local Sewer Use Ordinance (SUO), information and data provided in
this questionnaire which identifies the content, volume and frequency of discharge shall be available to
the public without restriction.
This is to be signed by an authorized official of your firm,as defined in the Local Sewer Use Ordinance or the NC Model
Sewer Use Ordinance,Section 1.2,after completion of this form.
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based upon my inquiry of
the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of myknowledge and
g g g
belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and/or imprisonment for
knowing violations.
y ,1J2Qt
Si Signature Representative Date
listed above (seal if applicable)
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-[UP Permit Renewal.doc
Revision date: 12/30/97 Page 1 of 19

1. Provide a brief narrative description of the type of business, manufacturing
processes, or service activities your firm conducts at this site.
Manufacturer and processing of nickel, cobalt and titanium alloys, and specialty steels
through vacuum induction melting, remelting, forging, rolling, finishing, etching and heat
treating processes.
2. List the primary products produced at this facility:
Nickel, cobalt and titanium alloys, and specialty steels in billet, bars and shapes.
3. List raw materials and process additives used:
Ni, Co, Cb, Al, Ti, Cu, Fe, C, Si, Cr, Mn, Mo, V, Zr and Mg
4. Are biocides added to any water discharged to the POTW,
if yes describe:
Yes
No X
5. Describe weekly production schedule, including shifts worked per day,
employees per shift, and primary operation during shift.
3 shifts/day
7 days/week
Average number of employees per shift:
First: 700
Second: 300
Third: 200
6. Production process is: Check, if all continuous
Check, if all batch X
If both please enter, % continuous = % % Batch = %
7. Does production vary significantly (+- 20 %) by season. Describe.
Yes
No X
8. Are any significant (+- 20 %) changes in production that will affect wastewater
discharge expected in the next 5 years. If yes, please describe.
Yes
No X
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 2 of 19

9. List all current waste haulers. Give name, address, phone numbers, volume and
materials hauled off.
Used Oil (— 21,000 gal/yr) General Garbage (>2,500 Tons)
Wallace Industrial Inc. Wallace Industrial Inc.
3521 Barr Road 3521 Barr Road
Concord, NC 28027 Concord, NC 28027
[phone] [phone]
10. Attach a copy of laboratory analyses performed in the last year on the wastewater
discharge(s) from your facilities. Summarize data on the attached Data Summary
Form.
Attached
11. Attach sketch or schematic showing sampling points and all connections to the sewer.
Pipe 01 —Pretreatment discharge to POTW
Pipe 02—Domestic and pretreatment discharge to POTW
12. Complete the Wastewater Pollutants Checklist attached to this Survey.
Attached
13. Do you have, or have you ever applied for, been issued, or been denied
an NPDES permit to discharge to the surface waters or storm sewers of
North Carolina? If yes, list all other NPDES permits, permit numbers,
dates, and names used to apply for them, or reason denied.
If yes: Permit,#,date,applicant name NC0045993, 06/01/2018, Cooling Ponds Yes X
If yes: Permit,#,date,applicant name NCS000330, 8/01/2019, Stormwater No
-14. Do you have, or have you ever applied for or been issued an Industrial
User Pretreatment Permit (IUP) to discharge wastewater to the sewer
collection system. If yes, list all other IUP permits, permit numbers,
dates, and names used to apply for them.
If yes: Permit,#,date,applicant name CM-15, July 1st, 2020, Pretreatment Yes X
If yes: Permit,#,date,applicant name
No
15. Do you have, or have you ever applied for or been issued any other
Environmental Permits (for example; air, RCRA, groundwater,
stormwater, general, Non-Discharge, septic tank, etc.). If yes, list all
other permits, permit numbers, dates, and names used to apply for them.
If yes: Permit type,#,date,applicant name Air Quality#4330R33, June 10th, 2019 Yes X
Title: [U Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 3 of 19

f" '
If yes: Permit type,#,date,applicant name No
16. Is a Spill Prevention Control and Countermeasure (SPCC) Plan
prepared for this facility?
YesX
No
17. Is a Spill /Slug Control Plan required by the POTW, prepared for this
facility?
Yes X
No
18. Do you have any underground storage tanks at your facility? If yes, list
contents and volume of each tank.
1) 20,000 gallons of K 1 Kerosene Yes X
2) 20,000 gallons of K1 Kerosene No
19. Do you have any above ground storage tanks at your facility? If yes,
for each tank, list the contents, volume, whether the tank has any spill
prevention or containment devices, such as dikes, and procedures for
draining any containment devices.
Yes X #of Tanks 26
See attached list for descriptions No
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 4 of 19

ATI - Monroe Plant
Part II, Water Supply, Use, & Disposal Worksheet
Water Ave.Flow Max Flow Measured Estimated Disposal Ave.Flow Max Flow Measured Estimated
Wastewater Source Source gal./day gal./day Methods gal./day gal./day
Sample Prep. Area 1 10,000 12,000 X 1 8,500 10,000 X
Coolants - Finishing 1 200 600 X 1 175 500 X
Coolants - Conditioning 1 750 1,200 X 1 600 1,000 X
Coolants - Lab 1 200 400 X 1 125 300 X
Ultrasonic 1 600 1,800 X 1 375 1,500 X
Zyglo Rinse 1 2,500 3,200 X 1 2,200 3,000 X
Forging equip cleaning water 1 2,500 3,200 X 1 2,200 3,000 X
Forging hydraulic fluid leakage 1 2,500 3,200 X 1 2,200 3,000 X
Wet Scrubber 1 6,000 6,600 X 1 4,500 6,000 X
Ti Furnace Water (from Bakers) 1 300 1,200 X 1 150 1,000 X
Equipment Washdown 1 400 1,200 X 1 250 1,000 X
Lab Drains 1 7,500 12,000 X 1 250 1,000 X
Boiler Blowdown 1 150,000 200,000 X 1 20,000 25,000 X
Cooling Tower Blowdown 1 & 4 200,000 250,000 X 2 20,000 30,000 X
Employee Sewer Use 1 25,000 30,000 X 2 25,000 30,000 X
Water Sources Disposal Methods
1. City Water 1. Sanitary Sewer, with Pretreatment
4. Private Ponds 2. Sanitary Sewer, without Pretreatment

PART III, PRETREATMENT FACILITIES:
Are there any pretreatment devices or processes used for treating wastewater
before being discharged to the sewer? Check all that are present, and describe.
No pretreatment facilities => 1
I. Flow equalization Aerated equalization =>
NON-Aerated equalization => X
Total volume of equalization (million gal.) => 30,000 gal
2. Activated Carbon Yes No X Describe any, if present.
3. Activated Sludge Yes No X
4. Air Stripping Yes No X
5. Centrifugation Yes No X
6. Chemical Precipitation Yes X No
7. Chlorination Yes No X
8. Cyanide Destruction Yes No X
9. Cyclone Yes No X
10. Dissolved Air Floatation Yes No X
11. Filtration Yes X No Solids filtered out through Sludge
Press.
12. Flocculation Yes X No
13. Grease Trap Yes No X
14. Grit Removal Yes No X
15. Ion Exchange Yes No X
16. Neutralize, pH adjust Yes X No
17. Other Biological Treatment Yes No X
18. Ozonation Yes No X
19. Reverse Osmcsis Yes No X
20. Screening Yes No X
21. Sedimentation Yes X No Sedimentation in EQ tanks.
22. Septic Tank Yes No X
23. Silver Recovery Yes No X
24. Solvent Separation Yes No X
25. Spill protection Yes X No High level alarms, secondary
containment
List any others.
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 7 of 19

PART IV, CATEGORICAL INFORMATION:
1. When were operations started at this facility Facility start up date 1957
2. List all Standard Industrial Classification (SIC) codes for your facility.
These may be found on State Unemployment forms, tax forms,
accounting records, or from the Chamber of Commerce.
3341 3356
3. Has this facility ever been considered a Categorical Industrial User
(CIU) as described by the Code of Federal Regulations (40 CFR)?
If yes, give complete 40 CFR number => 40CFR 471
No
4. Are any other facilities owned and/or operated by your company
permitted as Categorical Industrial Users (CIUs) as described by the
Code of Federal Regulations (40 CFR)?
If yes please give name(s), location, and 40 CFR number. Yes 40CFR 471
ATI Specialty Materials—Richburg, SC; No
ATI Specialty Materials—Bakers South, Bakers, NC
Title: IU Wastewater Survey & Permit Application
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Revision date: 12/30/97 Page 8 of 19

PART IV, CATEGORICAL INFORMATION:
(continued)
5. Check any activities listed below that are performed at your facility:
Check 40 Industrial Activity Check 40 Industrial Activity
below CFR# below CFR#
467 Aluminum Forming 432 Meat products
427 Asbestos Manufacturing 433 Metal finishing
461 Battery Manufacturing 464 Metal molding and casting
431 Builders paper&board mills 436 Mineral mining and processing
407 Canned&preserved fruits&veg. X 471 Nonferrous Metal, Form & Powders
408 Canned &preserved seafood 421 Nonferrous Metals Manufacturing
458 Carbon black Manufacturing 414 OCPSF, Organic Chemicals,Plastics,
411 Cement Manufacturing & Synthetic Fiber Manufacturing
437 Centralized Waste Treatment 435 Oil &gas extraction
434 Coal Mining 440 Ore mining and dressing
465 Coil Coating 446 Paint formulating
468 Copper Forming 443 Paving and roofing materials Mfg.
405 Dairy products processing 455 Pesticide Manufacturing
469 Electrical, electronic components 419 Petroleum Refining
413 Electroplating 439 Pharmaceutical Manufacturing
457 Explosives Manufacturing 422 Phosphate Manufacturing
412 Feedlots 459 Photographic supplies
424 Ferro allay Manufacturing 463 Plastics molding and forming
418 Fertilizer Manufacturing 466 Porcelain enameling
464 Foundries,Metal Mold&Casting 430 Pulp,paper, and paperboard
426 Glass Manufacturing 428 Rubber Manufacturing
406 Grain mills 417 Soap&Detergent Manufacturing
454 Gum&Wood Chemicals Mfg. 423 Steam Electric power Generation
460 Hospitals 409 Sugar processing
447 Ink formulating 410 Textile Mills
415 Inorganic chemical Manufacturing 429 Timber products processing
420 Iron &Steel Manufacturing 442 Transportation Equipment Cleaning
425 Leather Tanning&Finishing Others
Title: IU Wastewater Survey & Permit Application
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Revision date: 12/30/97 Page 9 of 19

Wastewater Pollutant Checklist
Chemical Name EPA Check if Check if Check if Check if Concentration
Storet Present at Absent at Present in Absent in in Discharge,
Code Facility Facility Discharge Discharge if Known
(mg/1)
Acid Extractable Organics
2-Chlorophenol 34586 X X
2,4-Dichlorophenol 34601 X X
2,4-Dimethylphenol 34606 X X
2,4-Dinitrophenol 34616 X X
2-Methyl-4,6-dinitrophenol 34657 X X
4-Chloro-3-methylphenol 34452 X X
2-Nitrophenol 34591 X X
4-Nitrophenol 34646 X X
Pentachlorophenol 39032 X X
Phenol 34694 X X
2,4,6-Trichlorophenol 34621 X X
Base Neutral Organics
1,2,4-Trich lorobenzene 34551 X X
1,2-Dichlorobenzene 34536 X X
1,2-Diphenylhydrazine 34346 X X
1,3-Dichlorobenzene 34566 X X
1,4-Dichlorobenzene 34571 X X
2,4-Dinitrotoluene 34611 X X
2,6-Dinitrotoluene 34626 X X
2-Chloronaphthalene 34581 X X
3,3-Dichlorobenzidine 34631 X X
4-Bromophenyl phenyl ether 34636 X X
4-Chlorophenyl phenyl ether 34641 X X
Acenaphthene 03405 X X
Acenaphthylene 34200 X X
Anthracene 34220 X X
Benzidine 39120 X X
Benzo (a) anthracene 34526 X X
Benzo (a)pyrene 34247 X X
Benzo (b) fluoranthene 34230 X X
Benzo (ghi) perylene 34521 X X
Benzo (k) fluoranthene 34242 X X
Bis(2-chloroethoxy) methane 34278 X X
Bis(2-chloroethyl) ether 34273 X X
Bis(2-chloroisopropyl) ether 34283 X X
Bis(2-ethylhexyl) phthalate 39100 X X
Butyl benzyl phthalate 34292 X X
Chrysene 34320 X X
Di-n-butyl phthalate 39110 X X
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Divisicn\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 10 of 19

Wastewater Pollutant Checklist
Chemical Name EPA Check if Check if Check if Check if Concentration
Storet Present at Absent at Present in Absent in in Discharge,
Code Facility Facility Discharge Discharge if Known
(mg/1)
Base Neutral Organics (continued)
Di-n-octyl phthalate 34596 X X
Dibenzo (a,h) anthracene 34556 X X
Diethyl phthalate 34336 X X
Dimethyl phthalate 34341 X X
Fluoranthene 34376 X X
Fluorene 34381 X X
Hexachlorobenzene 39700 X X
Hexachlorobutadiene 34391 X X
Hexachlorocyclopentadiene 34386 X X
Hexachloroethane 34396 X X
Indeno(1,2,3-cd) pyrene 34403 X X
Isophorone 34408 X X
N-nitroso-di-n-propylamine 34428 X X
N-nitrosodimethylamine 34438 X X
N-nitrosodiphenylamine 34433 X X
Naphthalene 34696 X X
Nitrobenzene 34417 X X
Phenanthrene 34461 X X
Pyrene 34469 X X
Metals
Aluminum 01104 X X
Antimony 01097 X X
Arsenic 01002 X X
Beryllium 01012 X X
Cadmium 01027 X X
Chromium 01034 See Data
X X Summary
Form
Copper 01042 See Data
X X Summary
Form
Lead 01051 X X
Mercury 71900 X X
Molybdenum 01062 See Data
X X Summary
Form
Nickel 01067 X X See Data
Summary
Title: 1U Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-1UP Permit Renewal.doc
Revision date: 12/30/97 Page 11 of 19

Form
Selenium 01 147 X X
Silver 01077 X X
Thalium 00982 X X
Zinc 01092 See Data
X X Summary
Form
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 12 of 19

Wastewater Pollutant Checklist
Chemical Name EPA Check if Check if Check if Check if Concentration
Storet Present at Absent at Present in Absent in in Discharge,
Code Facility Facility Discharge Discharge if Known
(mg/1)
Other Inorganics
Barium 01007 X X
Chloride 00940 X X
Cyanide 00720 X X 0,00395
Fluoride 00951 X X 15
Purgeable Volatile Organics
1,1,1-Trichloroethane 34506 X X
1,1,2,2-Tetrachloroethane 34516 X X
1,1,2-Trichloroethane 34511 X X
1,1-Dichloroethane 34496 X X
l,1-Dichloroethylene 34501 X X
1,2-Dichloroethane 34531 X X
1,2-Dichloropropane 34541 X X
2-Chloroethyl vinyl ether 34576 X X
Acrolein 34210 X X
Acrylonitrile 34215 X X
Benzene 34030 X X
Bromodichloromethane 32101 X X
Bromoform 32104 X X
Bromomethane 34413 X X
Carbon tetrachloride 32102 X X
Chlorobenzene 34301 X X
Chloroethane 34311 X X
Chloroform 32106 X X
Chloromethane 34418 X X
cis 1,3-Dichloropropene 34704 X X
Dibromochloromethane 32105 X X
Ethylbenzene 34371 X X
Methylene chloride 34423 X X
Tetrachloroethylene 34475 X X
Toluene 34010 X X
trans 1,3-Dichloropropene 34699 X X
trans-1,2-Dichloroethylene 34546 X X
Trichloroethylene 39180 X X
Trichlorofluoromethane 34488 X X
Vinyl chloride 39175 X X
Others
Xylene X X
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 13 of 19
l

Data Summary Form
Monroe <= Receiving POTW
<= Receiving NPDES #
Pipe 01 <= Specific Sample Location !
i.e.,Give IU Name,IUP#,and/or pipe#
Chromium Cyanide Fluoride
Lab=> Laboratory performing analysis=> Pace Pace Pace
MDL=> Laboratory Method detection limits=> 0.01 mg/1 0.01 mg/1 0.1 mg/1
Notes=> Notes=>
Q =Flow Conc. results from Lab Conc. results from Lab Conc. results from Lab
Sample Date Collected Notes M or E MUD gal/day <? mg/1 <? mg/1 <? mg/1
1 1/8/2021 M 28,372 0.028 0.008 0.004 13.50
2 2/5/2021 M 25,446 0.011 0.008 0.004 9.90
3 3/5/2021 M 28,240 0.014 0.008 0.004 6.50
4 4/9/2021 M 24,299 0.028 0.008 0.004 20.00
5 7/2/2021 M 16,919 0.020 0.008 0.004 19.30
6 8/13/2021 M 19,508 0.027 0.008 0.004 16.40
7 9/10/2021 M 29,245 0.021 0.008 0.004 17.30
8 10/8/2021 M 38,052 0.022 0.008 0.004 10.00
TNS=> Total Number of Samples=> 8 8 8
Max. Value=> Maximum data value(mg/1)=> 0.028 0.004 20.00
Avg.(use 1/2 BDL)_> Avg.data value,Include BDL values as 1/2 det.limit=> 0.0214 0.0040 14.113

Data Summary Form
Monroe <= Receiving POTW
<= Receiving NPDES#
Pipe 01 <= Specific Sample Location !
i.e.,Give IU Name,IUP#,and/or pipe#
Lead Ammonia Nickel Zinc
Lab=> Pace Pace Pace Pace
MDL=> 0.005 mg/1 0.5 mg/1 0.01 mg/1 0.01 mg/1
Notes=>
Cone.results from Lab Conc.results from Lab Conc.results from Lab Conc. results from Lab
Sample Date Collected <? mg/1 <? mg/1 <? mg/1 <? mg/1
1 1/8/2021 0.005 0.003 0.940 0.058 0.059
2 2/5/2021 0.005 0.003 0.570 0.016 0.043
3 3/5/2021 0.005 0.003 0.350 0.018 0.072
4 4/9/2021 0.005 0.003 1.600 0.063 0.079
5 7/2/2021 0.005 0.003 1.700 0.110 0.140
6 8/13/2021 0.005 0.003 0.590 0.023 0.110
7 9/10/2021 0.005 0.003 0.240 0.014 0.062
8 10/8/2021 0.005 0.003 0.200 0.016 0.076
rNs=> 8 8 8 8
Max.value=> 0.003 1.700 0.110 0.140
Avg.(use 1/2 BDL)=> 0.00250 0.77 0.040 0.0801

Data Summary Form
Monroe <=Receiving POTW
<=Receiving NPDES #
Pipe 02 <=Specific Sample Location !
i.e.,Give IU Name,IUP#,and/or pipe#
BOD TSS Ammonia
Lab=> Laboratory performing analysis=> Pace Pace Pace
MDL=> Laboratory Method detection limits=> 2.0 mg/1 2.5 mg/1 0.5 mg/1
Notes=> Notes=>
Q =Flow Conc. results from Lab Conc. results from Lab Conc. results from Lab
Sample Date Collected Notes M or E MGD gal/day <? mg/1 <? mg/1 <? mg/1
1 1/8/2021 _ M 36,058 31 23 5.40
2 2/5/2021 M 53,175 75 54 7.30
3 3/5/2021 M 51,984 78 22 5.70
4 4/9/2021 M 55,597 123 33 11.00
5 7/2/2021 , M 65,181 75 34 4.10
6 8/13/2021 _ M 49,469 26 15 8.10 _
7 9/10/2021 M 62,381 21 21 8.40
8 10/8/2021 M 69,889 29 17 6.90
TNS=> Total Number of Samples=> 8 8 8
Max.Value=> Maximum data value(mg/1)=> 123 53.6 11
Avg. (use 1/2 BDL)=> Avg.data value,Include BDL values as 1/2 det.limit=> 57 27 7.11

Data Summary Form
Monroe <= Receiving POTW
<= Receiving NPDES #
Pipe 02 <= Specific Sample Location !
i.e.,Give IU Name,IUP#,and/or pipe#
Chromium Copper Cyanide Lead
Lab=> Pace Pace Pace Pace
MDL=> 0.01 mg/1 0.01 mg/1 0.01 mg/1 0.005 mg/1
Notes=>
Conc. results from Lab Conc.results from Lab Conc.results from Lab Conc.results from Lab
Sample Date Collected <? mg/1 <? mg/1 <? mg/1 <? mg/1
1 1/8/2021 0.014 0.008 0.013 0.005 0.003
2 2/5/2021 0.016 0.027 0.008 0.004 0.005 0.003
3 3/5/2021 0.013 0.007 0.008 0.004 0.005 0.003
4 4/9/2021 0.021 0.008 0.008 0.004 0.005 0.003
5 7/9/2021 0.013 0.015 0.540 0.005 0.003
6 8/13/2021 0.010 0.012 0.008 0.004 0.005 0.003
7 9/10/2021 0.013 0.008 0.008 0.004 0.005 0.003
8 10/8/2021 0.019 0.009 0.008 0.004 0.005 0.003
ms=> 8 8 8 8
Max.Value=> 0.021 0.027 0.54 0.0025
Avg.(use 1/2 BDL)=> 0.0149 0.0117 0.0721 0.0025
L

Data Summary Form
Monroe <=Receiving POTW
<= Receiving NPDES #
Pipe 02 <= Specific Sample Location !
i.e.,Give IU Name,IUP#,and/or pipe#
Aluminum Nickel Molybdenum Zinc _
Lab=> Pace Pace Pace Pace
MDL=> 0.005 mg/1 0.01 mg/1 0.005 mg/1 0.01 mg/1
Notes=>
Conc. results from Lab Conc.results from Lab Conc.results from Lab Conc.results from Lab
Sample Date Collected <? mg/1 <? mg/1 <? mg/1 <? mg/1
1 1/8/2021 0.0100 0.0090 0.033 0.140 0.130
2 02/052021 0.0100 0.0090 0.037 0.021 0.170
3 3/5/2021 0.0100 0.0090 0.019 0.190 0.180
4 4/9/2021 - 0.2300 0.029 0.250 0.180
5 7/092021 _ 0.1400 0.063 0.380 0.170
6 8/13/2021 - 0.1100 0.016 0.210 0.087
7 9/10/2021 _ 0.1200 0.021 0.310 0.072
8 10/8/2021 0.1500 0.034 0.430 0.070
TNS=> 8 8 8 8
Max.value=> 0.23 0.063 0.43 0.18
Avg.(use 1/2 BDL)_> 0.0971 0.0315 0.2414 0.1324

Part V, Waste Reduction Information :
State Pretreatment Rule 15A NCAC 2H.0916 (c)(1)(M) requires Significant Industrial
Users to include a description of current and projected waste reduction (pollution
prevention) activities. The codes listed are standard EPA codes found on Toxic Release
Inventory and other environmental forms. Please check all applicable codes for your
facility related to wastewater discharge.
Current Projected Code Description
X W13 Improved maintenance scheduling recordkeeping, or procedures
W14 Changed production schedule to minimize equipment and feedstock
changeovers
W19 Other changes in operating practices (explain briefly in comments)
W21 Instituted procedures to ensure that materials do not stay in inventory
beyond shelf-life
W22 Began to test outdated material-continue to use if still effective
W23 Eliminated shelf-life requirements for stable materials
X W24 Instituted better labeling procedures
W25 Instituted clearinghouse to exchange materials that would otherwise
be discarded
W29 Other changes in Inventory control (explain briefly in comments)
X W31 Improved storage or stacking procedures
X W32 Improved procedures for loading, unloading and transfer operations
X W33 Installed overflow alarms or automatic shutoff valves
X W34 Installed secondary containment
W35 Installed vapor recovery systems
X W36 Implemented inspection or monitoring program of potential spill or
leak sources
W39 Other spill and leak prevention (explain briefly in comments)
W41 Increased purity of raw materials
W42 Substituted raw materials
W49 Other raw material modifications (explain briefly in comments)
X W51 Instituted recirculation within a process
Title: IU Wastewater Survey&Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doc
Revision date: 12/30/97 Page 18 of 17

Current Projected Code Description
X W52 Modified equipment, layout, or piping
W53 Use of a different process catalyst
X W54 Instituted better controls on operating bulk containers to minimize
discarding of empty containers
X W55 Changed from small volume containers to bulk containers to
minimize discarding of empty containers
W58 Other process modifications (explain briefly in comments)
W59 Modified stripping/cleaning equipment
W60 Changed to mechanical stripping/cleaning devices (from solvents or
other materials)
W61 Changed to aqueous cleaners ( from solvents or other materials)
W62 Reduced the number of solvents used to make waste more amenable
to recycling
X W63 Modified containment procedures for cleaning units
W64 Improved draining procedures
W65 Redesigned parts racks to reduce dragout
W66 Modified or installed rinse systems
W67 Improved rinse equipment design
W68 Improved rinse equipment operation
W71 Other cleaning and degreasing operation (explain briefly in comments)
W72 Modified spray systems or equipment
W73 Substituted coating materials used
W74 Improved application techniques
W75 Changed from spray to other system
W78 Other surface preparation and finishing (explain briefly in comments)
W8 1 Changed product specifications
W82 Modified design or composition of product
W83 Modified packaging
W89 Other product modifications (explain briefly in comments)
W99 Other (specify in comments )
Comments (Please list corresponding code)
Title: IU Wastewater Survey & Permit Application
File name: O:\EHS\Environmental\Division\Monroe\PreTreatment\Permit\Permit Renewal-2022\2022-IUP Permit Renewal.doe
Revision date: 12/30/97 Page 19 of 19

Stormwater Systems & SPCC
Monroe Facility Audit
Dept Description Contain Cap. Tank Valves Pumps Piping Sec Comments/
Type (gal) Cont Corrective Actions
6600 #5 Generator Bldg.-Kerosene(Double Wall) Port 250
Gen.Plant
6600 Gen.Plant Generators-(2)Kerosene(Double Wall) Port 250
4170 Oil Storage Area Drums 660
Machine Shop
6605 Trash Compactor-Melt Perm
WasteWater
6600 Stock Room-Drum Storage Drums 7000
Gen.Plant
4100 Melt Maint-Oil Storage Port 550
Melt Maint.
6600 Vehicle Refuel Station-Gas Perm 1000
Gen.Plant
6600 Vehicle Refuel Station-Diesel Perm 1000
Gen.Plant
6600 Vehicle Refuel Station-Varsol Perm 550
Gen.Plant
6600 Vehicle Refuel Station-Kerosene Perm 250
Gen.Plant
1120 Oil Storage Area(Rear)-Tex Rando HD46 Perm 1500
Press
1120 Oil Storage Area(Rear)-Used Oil Perm 3000
Press
1120 Used Oil Port 125
Press
1120 Double Wall Tank-Deisel Fuel Perm 1000 ■
Press
1130 Oil Storage Area(Rear) Drums
GFM
1130 Used Oil(Rear) Perm 1000
GFM
EHS-SW-Monroe SW Inspection Form-Rev.0011

Stormwater Systems & SPCC
Monroe F a cilit Audit
Dept Description Contain Cap.
Type (gal)
1130 4r.,5 z.,
GFM Milling Area(Rear)-Used Oil&Coolant Port 350 ■
6605 Trash Compactor-GFM Perm
WasteWater
4130 Used Oil-(Rear) Port El
Conditioning
6605 Wastewater-Waste Staging Area Drums
WasteWater
1140 Conditioning Coolant Tote Storage Area Port 350
1140 Conditioning Macro Bulk Acid Area-HCI Totes(2)350 gal Port 700
1140 Macro Bulk Acid Area-Spent Acids Perm 1500
Conditioning
6605 Wastewater-Used Oil Perm 3000
WasteWater
6605 Wastewater-Ferric Chloride Port 350
WasteWater
1
Conditioning Small Acid • .•-Area-Acids Drums 440
1
MacroConditioning •Oil Port 350
•
Macro-Nitric Acid Port 350
Conditioning
61 . Peeler CoolantPerm 11Finishin
■ ■
1160 Coolant Storage Area Drums •-/
Finishing
1160 Used Coolant Containers Port 220 ■
Finishing
4515 Lab-Quench Oil Drums <100
Lab
Yes No
6600 SW Outfall#04(M)
Gen.Plant
6600 SW Outfall#06(M)
Gen.Plant
6600 SW Outfall#03(M)
Gen.Plant
6600 Any non-stormwater discharges present?
Gen.Plant SW Outfall#02(M)
6600 SW Outfall#01(M)
Gen.Plant
6600 SW Outfall#05(M)
Gen.Plant
All portable tanks should be stored inside secondary containment area,or in building where spill would be contained by the building.
All material drums stored outside should be securely covered.
Other Notes:
Auditor: Date:
EHS-SW-Monroe SW Inspection Form-Rev.0011

P.O. Box 5030
2020 Ashcraft Ave.
Monroe,NC 28111
January 14, 2022
Larry.Allen @atimetals.com
Phone: [phone]
EXT 3823
Kevin Keesler
City of Monroe
P.O. Box 69
Monroe, NC 28110
SUBJECTS: Monroe Site
2021 Production Records Report, Slug/Spill Control Plan, and Sludge
Management Plan
Dear Kevin:
Attached are the 2021 Production Records and Slug/Spill Control Plan for ATI—Monroe Site.
Note: The 2021 Production lbs were lower than prior year and are not indicative of normal
operation due to decreased demand for our material during the Global Pandemic. The business
forecast and backlog indicate production will see a significant ramp up in 2022. We request that
this be taken into consideration.
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties fox submitting false information,
including the possibility of fine or imprisonment for knowing violations."
If you have any questions or need any additional information, please contact me at 704-289-
4511.
Thank you.
Sin ely,
OAAA-(4e21^'
Larry Allen
EHS Manager

ATI Ailvac-Monroe Site
2021 Production Update
Wastestream Flows to WWTP and Categorical Determination
Subject to Cr Ni F Cn Pb Zn NH,
40 CFR 471.XX Regulated Metals) Caagnri®1 Daily Max.Max.Mo.Avg Daily Max.I Max.Mo.Avg Daily Max.Max.Mo.Avg Daily Max.I Max.Mo.Avg Daily Max.Max.Mo.Avg Daily Max.I Max.Mo.Avg Daily Max.Max.Mo.Avg
Wastewater Source Category Production Standard? Regulation Regulated Cont. (IbAINI Ib) (lb/v1M lb) OMA1A1 Ib), (lb/MM lb) (1b/IM lb) (Ili/M11 Ib) (Ih/11(M Ib)1 (lb/1I11 16) (lb/JIM Ib) (Ib/YMM1lb) (lb/MM lb)I (Ib/11M Ib) (lb/1131lb) IIbM11 Ib)
-
Sample Prod 1,2. ' - \ I # I l
I
Sawing or grinding rinse/ I Ni-Cr Y 471.34(z) G Ni 1 0.067 ti 07- u.l 0.067 t 10.8 478
Coolants-Finishing - t
contact water Ti Y 471.64(v) Co.Ph,Zn,NH;N( ( l 28.3 12.6 0 I,8 0.2 0i aF ,9,2 0 291 _ 6z 5
Cailanto-Conditioning Sawingor nod nose/ NI-Cr Y 47L34(z) Cr.Ni, i n67 I.1.,_- nl L Ir
grinding III8 47
contact water TO Y 471.64(v) Cn.Pb,Zn.NH;A I 1 o 6 I,I .a t v � 0595 I 291 6,: "9
Coolants-Lab ---P - N
1,9t sordi testing wastewater H}dr tstal c tubetoting and Ni Cr
` ultrasoOs teat,
+astewater I
Y 47134(bb) trio allowance) #
fi
Zyglu Rinse Dve penetrant testing 'aC Y 147 134Idd) Cr NI. .1079 0.0s7 I 0.7I ti.ui9 i I_'7 5.63 ,
wastewater II
Y 471.610w4 Ca l b.Zn.NH N ( 66.7 29.6 0 375 II 135 0.471 0 224 I/I 0.6,8 119 55,
-------i
Forging equip cleaning wane Forging equtpr nem cleaning Ni-Cr Y 471.34(3) Cr Nt,F II 1 w 2 ,,x for I t w,2 0002 0.238 0.106
wastewater 11 Y 471.64(i) Cn,Pb Zn.NH;M t 23K 1.06 t. I I' a(r h ! r __-
Forging hydraulic fluid Forging press hydraulic fluid Ni-Cr Y 471.34(l) Cr,Ni,F tor,,, o o28 0.103 0.069 11.2 4.94 � 1. i.
leakage leakage Tr Y 471.64(j) Cn,Pb,Zn,NH)-N `" .,y 60 I 26.7 0 2y( 0121 1 ,4_'» I > .t6I6 59 7
Rc1 Aar PolIutton Control AI Cr Y I 471 xx(n Cr
Ronalones NI b3 fl l'_'_ t14, 113 48' ?I t ( ..
Scr I bu lllowduw n I i T I 1'I ns,0, Co(h In.NH;N 12.8 5 6s 0 067 0 .2.5 0.09 11,11 0111 0 131 28.; 17 6
1 Furnace W ater(Bakers) \
! 1 r
Equipment W ashdown ' N I
� ( t
Lab Drains IN _ I
Miscellaneous wastewater Miscellaneous wastewater N'i-Cr Y 471 34 HO (i.Ni,F n u91 5,7 ',I_I?6 0 091 14 7 6 50
sources sources Ti Y 471.64(x) Cn.Ph.Zn,NH:\ 1. 1 _ 1.93 0.856 0.014 (1.(617 0.048 0LI20 437. I.90

TABLE 1: CALCULATION OF ALLOWABLE MASS LIMITS BASED ON CATEGORICAL STANDARDS
CY 2020 Production HIM 471.XX Allowance IIb/XIM 16i Mass Allowance
Toad Flow Nkkd Titanium I-day Max Monad)Aug Max (Ib/dor1.. IlWdayle.w,,,
{Yastewamr tiuune turd/day) Ilb/yry (lb/d y) (INyr) tlb/d y).,, CrNI F Cr Pb Zr NH, Cr Ni F Co Pb ;ZnNH, CrNi F Co I Pb Zit NH CrNI F CnPb ZnNH,
Sample Prop..Area 8_iW _ `,,c`:lr, ,.r -_.: ',Y.* --x '�4 :�--iiii1 ;'1a...11 y f a-,,,
Coolants-Finishing 175 I 1 , r 1 •1 1 I 1 I 1 1 11 I 1 11 111 I I I 1 70951
•
11 I 1 - 1 .2x, t- a
Gxlanu-Conditioning 600 t I ��®®® ® 0.03447 I 03310 0 007200 01044 I 036,8 3 31512 0.01389 I 0.90373 0.00298 0.00496 11
�_ ..._ _
Ultrasonic 250 _xxe^ v s.i * �--. - -w .t"nii 4 V F5".� ,,z,ffa .5n - f : r E2T {r
11
117
79
Zyglo Rinse 2,200 1,514,933 6.060 2.780,218 11,121 1 £ 1 1 ;n;I ) �^ 00479 0 10709 0 8187" 000361 0005,41 1 .,4 165701 0001941 00479 0 363,9 000150 000,49 0 00710 I I
I 1 11 1 (11()6
Forging equip cleaning water 2.200 4.J 14,664 I7,659 36,615.744 146,463 _ �� , +,;?� S)lx'IC}�a� ry 0.00035 0.0(1035 0.00420 I11 0.00035 0.00187
pj
s., r+ 67FT
4.664 17.659 36615.744 146.463 _ 169 / 1 1. 1 11 1 1 1 1 1 1 1 1> _ 4..�,..�_.. >14 _, _Y
POliahen) 15W 9.993 10,080 5,772 267 3,089 ..,st 1>.8 O 2"- 1 1 11-043 1 1 1 1 111 0.65804• 0.01230 0.03024 I 0.000600.00099 0.00302 1 I
E ui Trent Washdown 50 , ... •y _ ,_
4 P
Ti Furnace Water 150
Lab Drains 6500 I j i i I ( 1 ( 1 _ I f /
Miscellaneous wastewater 0.001 0.136 14.7 I I I I 0.0 a/ 10,3)1•6 50 ,- .w„r 'x`t U5df,
wmcY.S 6,000 26,953.916 107,816 784,300 3,137 :,_, L93 OCR: i, I -ts I O.8i6U.UIYi OW7 00_ L90 0.09811 0.14663 1.5)093 0.0UW3 0.00004 0.WU15 0.01355 0.03989 0.09811 0.70349 0.00001 0.00002 0.00006 0.00596
Total Flow: 30,650 Totals 0.085 0.127 13.410 0.059 0.085 0.296 27.017 0.035 0.085 5.957 0.024 0.040 0.123 11.858
NOTES:
II Total flows IgaVdayi and CY 2020 Rndo:non IINyr values for each pnazss were hove(nobly rnwdo.
21 CY 2020 Production:Nday/„r=CY 21120 Production INyr//150 wkty x 5 day/wk/
31 Flow AmibutiogIgol/dayl=Total FlowIgaYdayl x ICY 21120 Ptwurxim INyr//I CY 7020 Production INynl
JI 40 CFR of I.XX Allowance INMM bl values are from JO CFR 471.31 and J71.64.as appbuble
51 Mass Allowance
al tNdn)).,.=IlldoYMxx AWswancew.aw OM"lb).CY 2n211 Pmdnalw,,u.,,.INday/„r1+11day Max Allowaner,.,o I ROAM N/x CY 2020Priductionn.,,..,:Nday),,.,lll/I1.1001.1XIIVMhf)
bl(IWO/e,a,,.s=IfMonthly Max Allowarcews_aINMM 61x CY 2)120 Pmdiuuoo,,.,,,d INdayl„,1+(Monthly Max AW,wanq,.s,,,/110MM Ott x CY 2020 Pndunon,,,,,,INday)„alh/t I.ax1.010VMMi

ATI SPECIALTY MATERIALS - MONROE
TABLE 2: CALCULATION OF ALLOWABLE CONCENTRATIONS BASED
ON CATEGORICAL STANDARDS
Allowable Permit Limits
(Total Flow)
Daily Max Monthly Average
Parameters (lb/day) (mg/L) (lb/day) (mg/L)
Chromium 0.085 0.33 0.035 0.14
Nickel 0.127 0.50 0.085 0.33
Fluoride 13.4 52 6.0 23
Cyanide 0.059 0.23 0.024 0.09
Lead 0.085 0.33 0.040 0.16
Zinc 0.296 1.16 0.123 0.48
Ammonia 27.0 106 11.9 47
Total flow concentrations based on: 30,650 gal/day
NOTE:
1) Mass allowance values are obtained from Table 3,rounding to the nearest 0.001,except for fluoride and
ammonia,which are rounded to the nearest 0.1.
2) Allowable Permit Limits(Total Flow):
a) (lb/day) values are those calculated in Table 2.
b) (mg/L)=(lb/day)/[Total Flow(gal/day)x 8.344 lb/gal/ 1,000,000 mg/L]

SIU INSPECTION FORM
Name Of Industry: A'T L p-t w a c- IUP# C" 16
Address Of Industry: 7 0 20 Pfske r.,-(44- l41/4J--e IUP Expiration Date:
rr\c.n tie, NC a -) I O 6 -30 a,
'Lcts.4 Any a!is (Rz J.6.:5)
Indus Representatives:g TitlZ.V9
Moser tv-L`C& t- .v1
tA .4.s (3K:ter.,►v.)
POTW Representatives:` Title /�
r1-e.v1r\ \C-e.aP.SI.2r Pi- C C0irt ).
Date Of Inspection: !l- C)-a) Time Of Inspection: loon pm I(a5
Purpose of Inspection: Annual Other(Describe)
POTW to which IU discharges C_i-I-y el-e- fP or ro NPDES# N C_OO2,4 333
Is SIU currently in SNC? Po If yes,for what?
PART I- INITIAL INTERVIEW
Has anything changed since the last inspection or IUP application in the following:
COMMENTS
Product YES/140
Raw materials used YES/g Manufacturing processes YES/
Categorical,if applicable Y / Wit / Ni /'1 l'
Production rate /NO t
Number of employees e' I N 6 cl&n -Crow. ‘O D 0
Number of shifts YES/ t• 514 S
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? G/NO Where do they go? ?T
2. Are production areas diked,contained, o ierwise constructed in such a way as to prevent harm to the
WWTP,especially from spills or slugs? E /NO Comments:
3. Are there floor drains in the storage area? '? /NO Where do they go? "T-
4. Are storage tanks and areas diked,contained, • : erwise constructed in such a way as to prevent harm
to the WWTP,especially from spills or slugs? /NNO'�Comments:
5. Are process and storage tanks and pipes labeled? i i NO (
6. How are off-spec raw materials,and products disposed of? W 0-LI ec.e i t i-V+f I.c` 1
7. When is the production area cleaned? ekr-t l v
8. Is the wastewater from cleaning the production area discharg d to the POTW?` Y S/N d
9. What non-process wastewaters are discharged to POTW? 6 a l G/ W Ot VC 1O.�ciaw
Comments:
PART II - Plant Tour Section B- PRETREATMENT SYSTEM
Title: SIU lnpsection Form
File name: COMP.INSP App 7-D Page 1
Revision data: August 1,1994

SIU INSPECTION FORM
Ask the operator to describe pretreatment system.
1. Does operator seem knowledgable about the system? "/NO Comments:
2. Are all units operational? )/NO
3. How often does operator/maintenance perso heck system?
4. Is there an operator for each shift? YES/�"J ' S4-�-1 / c,1(.0(reNs Ss2ret- 40 3'.. 4 I- o.I)e
5. How and when is sludge disposed of? A,; n c Q„y \c.U.-('1I
6. Is there a schedule for preventative maintenance? 4/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? a/NO If yes,name of lab. (PC4 C.e.._
2. If industry completes sampling,ask the industry representative to describesampling procedures.
Comments: 15 M t r.
3. Is flow measurement equipment operational? DES NO Comments:
4. Is there a calibration log for the flow meter? ES/NO Comments:
Comments:
PART III - EXIT INTERVIEW
Review monitoring records an�I •ther SIU records required by IUP.
1. Are files well organized., 41p,/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?0/NO Comments:
4. Whhas as au c ty to shut down production should a spill or slug discharge occur?
iJ off.rw- rs
5. How does SIU inform employees of whom to call at POTW in case of spill/slug?
If slug/spill plan is already required by POW,review procedures.
6. Is SIU implementing slug/spill plan? ES/NO Comments:
Comments: . .¢►�� c,c p\\c..cz-I o r
INSPECTION RESULTS
Slug/Spill Control Plan Needed? YES/0
Comments,Required Or Recommended Actions:
Signature Of Inspector(s) o ._0\062,2r, di Date: so -5-a,
Date:
Title: SIU Inpsection Form
File name: COMP.INSP App 7-D
Revision data: August 1,1994 Page 2