NC0047384_Pretreatment_IUP_Machine_Renewal_20240509

CITY OF GREENSBORO
WATER RESOURCES DEPARTMENT
INDUSTRIAL WASTE SECTION
SIGNIFICANT INDUSTRIAL USER
WASTEWATER DISCHARGE PERMIT
SIU PERMIT NUMBER P070
MACHINE SPECIALTIES, INC.
IS AUTHORIZED TO DISCHARGE WASTEWATER
FROM A FACILITY LOCATED AT
6511 FRANZ WARNER PARKWAY
WHITSETT, NORTH CAROLINA
into the City of Greensboro Sanitary Sewer System
to the T.Z. OSBORNE Water Reclamation Facility
[NPDES PERMIT NUMBER NC0047384]
in accordance with the limitations and conditions set forth in this permit.
This permit shall become effective
SEPTEMBER 1, 2023
This permit and the authorization to discharge shall
expire at midnight on
AUGUST 31, 2028
or upon permit reissuance,whichever comes first.
6"fm 1)(LULOW-j-,- � � l31a
Amy N#Jinoski Date
Pretreatment Coordinator

Page 2, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
INDUSTRY OFFICIAL RESPONSIBLE FOR PERMIT COMPLIANCE
This signatory official shall be responsible for permit compliance, including monitoring, report
submittals, accidental discharge notification, and permit renewal. Although certain of these
activities may be delegated to other individuals, the Signatory Official is ultimately responsible
for compliance with all permit conditions, limits, activities and terms.
I am aware of my responsibilities as Signatory Official and I am aware of the terms and
conditions set forth in this wastewater discharge permit and the City of Greensboro Sewer Use
and Pretreatment Ordinance.
Signatory Official NAME (PLEASE PRINT)
Signatory Official TITLE (PLEASE PRINT)
Signatory Official Signature
Date:
CHANGE OF SIGNATORY OFFICIAL
If there is a change of the Signatory Official for this facility, the City of Greensboro shall be
notified of such change within thirty (30) days. A new page 2, "INDUSTRY OFFICIAL
RESPONSIBLE FOR PERMIT COMPLIANCE" shall be submitted to the Industrial Waste
Section with the name, title and signature of the new official.

Page 3, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
SECTION I—PERMIT MODIFICATION HISTORY
DATE MODIFIED REASON & DESCRIPTION OF MODIFICATION OR ACTION
July 1, 2004 PERMIT RENEWAL —No changes. Permit expires July 1, 2008.
Revised expiration date per comment from the State, that the permit cannot
July 1, 2004 exceed S years from original issuance date. Expiration date changed to
May 31, 2008
July 13, 2005 Inclusion of Process Wastewater- Page 4, A. Description of Discharge
changed to include tumbling as part of the process wastewater
May 1. 2007 PERMIT RENEWAL—No changes
September 1, 2007 Remove tumbling process from wastewater discharge -Page 2, Section II
A. Description of Discharge
PERMIT RENEWAL
1) Section ILA —added chemical conversion to Description of Discharge;
2) Section I1.B.2, Page 4- Pretreatment equipment added that was
previously omitted; 3) Section IIC Page 4- Clarification of sampling
location; 4) Section IID, Page 4—Sampling techniques clarified to be a
September 1, 2008 minimum of every 30 minutes; 5) Page 5, Section III flow limit changed
from daily maximum of 20,000 to monthly average of 10,000 and effective
date incorporated; 6) Section IV.A, Page 6—Added due dates for TTO
certification; Section IV.B,flow submittal due date and requirement for
flow meter calibration incorporated; Section IF C. -Added requirements
for self-monitoring reports.
Facility is re-locating to a new location in Whitsett, NC. Page 1 includes
an address change. Section ILA. will include scrubber water from metal
finishing line. The equipment at the current location for the metal finishing
operation will be moved to the new location. There will be one change in
the pretreatment system: The size of the 2 dump tanks that are currently
January 1, 2010 500 gallons will be changed to 1,900 gallon tanks. Page 5,flow increase
from 10,000 gpd monthly average to 20,000 gpd monthly average,
cadmium limits have been changed to a daily maximum local limit of 0.07
mg/1, cyanide limits have been changed to a daily maximum local limit of
0.03 mg/1. Section IV. Language has been added to B. Flow
Measurements and D. Signatory Requirements for Industrial Users
Reports for clarity
1) Page 5 Section III-Changed minimum sampling requirement for City to
July 1, 2011 1/year; 2) Page 7-IV.B— Changed effluent meter calibration requirement
from once per six-month period to once per calendar year 3) Page 7—
Section IV.C.- Changed self-monitoring report due date to I5th of month.
PERMIT RENEWAL
Section IV. -Modified Special Condition A (TTO); Added Special
September 1, 2013 Condition E (Slug/Spill Control Plan); Section III-Added TTO sampling
frequency and sample type for POTW; All changes per DWQ guidance.
Section III. —Reduced self-monitoring to Avice per 6-months based on
historical data.

Page 3A, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
SECTION I—PERMIT MODIFICATION HISTORY cont'd
DATE MODIFIED REASON & DESCRIPTION OF MODIFICATION OR ACTION
PERMIT RENEWAL
September 1, 2018 Special Conditions Changes:Added Flow Measurement Calibration/
Verification Section; Modified Flow Language; Modified Total Toxic
Organics Certification language;
September 1, 2023 PERMIT RENEWAL

Page 4, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
SECTION II - GENERAL INFORMATION
A. Description of Discharge
Pipe 01 —Process Wastewater From the anodizing, chemical conversion and passivation
processes (stainless steel) and scrubber system for cadmium and chromium
Pipe 01 does not include domestic waste, boiler and cooling tower blowdown
B. 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 Greensboro
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.
Flow Equalization Chemical Precipitation Flocculation
Neutralization, pH Adjustment Spill Protection Solids Removal
Clarifier Filter Press Sedimentation
3. The permittee is hereby authorized to, if requested by the City of Greensboro and after
receiving Authorization to Construct (A to C) from the City of Greensboro, construct and operate
additional pretreatment units as needed to meet final effluent limitations.
C. Monitoring Location
Peristaltic pump located on the northeast wall of Finishing Room behind the
neutralization/clarifier tank and beside the alkaline storage tank.
D. Composite Sampling Technique
A composite sample for the purposes of this permit is:
Sample collected by a peristaltic pump, at a minimum of every 30 minutes. Samples shall be of
equal volume taken over the entire workday.

Page 5, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
SECTION III - EFFLUENT LIMITS AND MONITORING REQUIREMENTS
Effluent Limits and Monitoring Requirements for Pipe 01
THIS FACILITY IS REGULATED BY FEDERAL CATEGORICAL PRETREATMENT
STANDARDS FOR NEW SOURCE METAL FINISHING
[40 CFR PART 433.171
EFFLUENT LIMITATIONS MONITORING FREQUENCY
EFFLUENT Daily Monthly Sample PERMITTEE CITY OF
CHARACTERISTICS Maximum Average Type
GREENSBORO
Flow (gallons per day) 20,000 # DAILY
Cadmium T m /1 0.07 - C 2/6 months 1/ ear
Chromium T m /1) 2.77 1.71 C 2/6 months 1/ ear
Copper T m /1 3.38 2.07 C 2/6 months 1/ ear
Lead T m /1 0.69 0.43 C 2/6 months 1/ ear
Nickel T m /1 3.98 2.38 C 2/6 months 1/ ear
Silver T m /1 0.43 0.24 C 2/6 months 1/ ear
Zinc T m /1 2.61 1.48 C 2/6 months 1/ ear
Cyanide (total) (mg/1) 0.03 - Grab 1/6 months 1/year
Total Toxic Organics' 2.13 Grab ** 1/year**
m /1
ALL METALS ARE TO BE ANAL YZED AS TOTAL METALS
# The Greensboro Industrial Waste Section does not consider Flow to be a pollutant and
flow data is not considered to be a report.
** A certification statement can be submitted semi-annually in lieu of sampling for total
toxic organics (TTO). See Section IV—Special Permit Conditions
^ See attached list for Definition of Total Toxic Organics under 40 CFR Part 433
C - Composite Sample [See Section II Part D for permit-specific definition]
G - Grab Sample
M- Monitoring Only [See Local Pollutant Allocation Document to determine if an
Allocation has been issued for this parameter]

Page 7, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
SECTION IV - SPECIAL PERMIT CONDITIONS
A. TOTAL TOXIC ORGANICS CERTIFICATION IN LIEU OF MONITORING
[40 CFR Part 413, Part 433, and Part 469]
Per 40 CFR Part 413.03, 433.12, or 469.13, in lieu of monitoring for Total Toxic Organics
(TTO) this facility may complete, sign, date, and submit a semi-annual certification statement,
which includes the following language:
"Based on my inquiry of the person or persons directly responsible for managing compliance
with the pretreatment standard for total toxic organics (TTO), I certify that, to the best of my
knowledge and belief, no dumping of concentrated toxic organics into the wastewaters has
occurred since filing the last discharge monitoring report" because (select correct statement
below):
I further certify that no toxic organics (as defined by EPA), are used at this facility
I further certify that this facility is implementing the current toxic organic management
plan submitted to the City of Greensboro.
I hereby certify that I have personally examined and am familiar with the information submitted
in this document and that the information is true, accurate and complete. I am aware that there
are significant penalties for submitting false information. "
The semi-annual TTO certification statements are due by July 15th of each year (covering the
previous January 1 through June 30 period) and January 15th of each year (covering the previous
July 1 through December 31 period). Certification statements must not be signed prior to the end
of the semi-annual period.
B. FLOW MEASUREMENT
Compliance with the flow limit in this permit shall be documented in the following manner:
Flow Meters: Incoming City Water Meter
This flow meter shall be read, recorded and the daily flow calculated in gallons per day. Flow
measurement records shall be submitted to the City of Greensboro Industrial Waste Section
monthly. Flow data is to be submitted by the 15th of each month for the previous month's flow
measurements. The Industrial Waste Section may also require submission of flow deduct meter
records. If no discharge occurs during the month, the permittee shall submit the monthly record
on time and state "NO DISCHARGE" on the record.
The permittee shall maintain permanent flow records and meter maintenance records on-site for
a minimum of three (3) years. These records shall be available to the City of Greensboro
Industrial Waste Section during inspections or upon request.

Page 8, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
See Flow Meter Cal ibration/Verification Requirements in another subpart of this section.
C. PERMITTEE SAMPLING AND MONITORING REPORT SUBMITTAL DATES
Permittee Sampling for the pollutant limitations in Section III (Effluent Limits and Monitoring
Requirements) of this permit shall be conducted in the following manner:
1. Samples for the January 1-June 30 Reporting Period shall ALL be taken during the
months of January, February and/or March. The compliance report shall be submitted on
or before APRIL 15 of each year.
2. If there are no discharges during months designated for sampling, the April 15
compliance report shall be submitted with the notation"NO DISCHARGE/NO
SAMPLING". If there is a discharge after March and prior to June 30, self-monitoring is
still required to meet the permit monitoring requirements and that data shall be submitted
with the corresponding monthly flow data.
3. Samples for the July 1-December 31 Reporting Period shall ALL be taken during the
months of July, August and/or September. The compliance report shall be submitted on
or before OCTOBER 15 of each year.
4. If there are no discharges during months designated for sampling, the October 15
compliance report shall be submitted with the notation"NO DISCHARGE/NO
SAMPLING". If there is a discharge after September and prior to December 31, self-
monitoring is still required to meet the permit monitoring requirements and that data shall
be submitted with the corresponding monthly flow data.
If there are no discharges during an entire semi-annual reporting period, a letter must be
submitted to the Industrial Waste Section by July 15 or January 15 stating there was no discharge
and no sampling for that period. This letter must be signed and certified by the signatory official.
D. SIGNATORY REQUIREMENTS FOR INDUSTRIAL USER REPORTS
All self-monitoring and re-sampling data submitted for compliance to the City of Greensboro
shall include the certification statement below and shall be signed by the
person on-site at the facility who is authorized to represent the company in an official capacity
concerning matters that involve the City of Greensboro Industrial Waste Section ("Signatory
Official").
I certify tinder penalty of law that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information submitted. Based on my
inquiry of the person or persons who manage the system, or those persons directly
responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fine and
imprisonment for knowing violations.

Page 9, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
E. SLUG/SPILL CONTROL PLAN
The permittee shall provide protection from accidental and slug discharges of prohibited
materials and other substances regulated by this permit, which may have a reasonable potential
to cause Interference or Pass Through, or in any other way violate the POTW's regulations, local
limits or Permit conditions.
The permittee shall notify the Industrial Waste Section immediately of any changes at its facility
affecting the potential for a Slug Discharge.
The permittee shall submit a new or updated slug/spill control plan for approval when so directed
in writing by the City of Greensboro Industrial Waste Section. The plan shall include, but is not
limited to:
■ Description of discharge practices, including non-routine batch discharges;
■ Description of stored chemicals;
■ Procedures for immediately notifying the POTW of slug discharges that would cause a
violation of 40 CFR Part 403.5 (b) [EPA Specific Prohibitions included in Greensboro
SUO Article II, Section 1. B.], with procedures for follow up written notification within 5
days;
■ 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.
Any current slug/spill control plan developed by the permittee and approved by the City of
Greensboro is hereby incorporated as a condition of this Significant Industrial User Permit.
F. FLOW MEASUREMENT CALIBRATION/VERIFICATION
Flow meters used for flow monitoring under this permit shall be calibrated in accordance with
manufacturer's recommendation by an independent contractor or a Greensboro Industrial Waste
Section approved in-house technician. Calibration documentation shall be maintained for a
minimum of three (3) years and made available upon request and during on-site inspections.
1. Industries with a highly-accurate (< 0.5% variance) flow meter, such as a magnetic or
ultrasonic (Doppler and transit) meter, must have the meter calibrated/verified once every
five years.
2. Industries with effluent wastewater meters that are used for City of Greensboro sewer
billing purposes, must calibrate the meters annually. Permanent records in the form of
electronic data trend sheets, strip or circular chart recordings that have back-up and fail-
safe capabilities are also required to be maintained.
3. Any industry may conduct meter calibration more frequently than required in this permit.

Page 10, SIU Permit#P070
MACHINE SPECIALTIES, INC.
Effective September 1, 2023
The following flow meters/systems have no calibration requirements:
1. Industries with custom built MemtekO pretreatment systems have a permanently
calibrated flow measurement system (as long as the plumbing remains intact and the
viscosity of the liquid does not change) and no calibration is required.
2. Industries with a non-discharge closed-loop system are not required to have any meter on
the system calibrated.
3. Industries that record daily flow from a City of Greensboro owned, maintained, and
calibrated incoming potable water meter are not required to have the meters calibrated.
4. The Industrial Waste Section does not require deduct meters to be calibrated.
Industries with an electronic data base with power back-up do not need to maintain redundant
paper recorders.

Total Toxic Organics (TTO) List
40 CFR Part 413-Electroplating and 40 CFR Part 433 Metal Finishing
The term TTO shall mean total toxic organics,which is the summation of all quantifiable
values greater than 0.01 milligrams per liter(mg/1)for the following toxic organics:
[From 40 CFR Part 413.02(i)]
Acenaphthene 4-Chlorophenyl phenyl ether
Acrolein 4-Bromophenyl phenyl ether
Acrylonitrile Bis (2-chloroisopropyl) ether
Benzene Bis (2-chloroethoxy)methane
Benzidine Methylene chloride[Dichloromethane]
Carbon tetrachloride[Tetrachloromethane] Methyl chloride[Chloromethane]
Chlorobenzene Methyl bromide[Bromomethane]
1,2,4-Trichlorobenzene Bromoform[Trihromomethane]
Hexachlorobenzene Dichlorobromomethane
1,2-Dichloroethane Chlorodibromomethane
I;1,1-Trichloroethane Hexachlorobutadiene
Hexachloroethane Hexchlorocyclopentadiene
1-1-Dichloroethane Isophorone
1,1,2-Trichloroethane Naphthalene
1,1,2,2-Tetrachloroethane Nitrobenzene
Chloroethane 2-Nitrophenol
Bis (2-chloroethyl) ether 4-Nitrophenol
2-Chloroethyl vinyl ether (mixed) 2,4-Dinitrophenol
2-Chloronaphthalene 4,6-Dinitro-o-cresol
2,4,6-Trichlorophenol N-nitrosodimethylamine
Para-chloro-meta-cresol N-nitrosodiphenylamine
[4-chloro-3-methyl phenol] N-nitrosodi-n-propylamine
Chloroform[Trichloromethane] Pentachlorophenol
2-Chlorophenol Phenol
1,2-Dichlorobenzene Bis (2-ethylhexyl)phthalate
1,3-Dichlorobenzene Butyl benzyl phthalate
1,4-Dichlorobenzene Di-n-butyl phthalate
3,3-Dichlorobenzidine Di-n-octyl phthalate
1,1-Dichlororethylene Diethyl phthalate
1,2-trans-Dichloroethylene Dimethyl phthalate
2,4-Dichlorophenol 1,2-benzanthracene [Benzo(a)anthracene]
1,2-Dichloropropane Benzo(a)pyrene[3,4-benzopyrene]
1,3-Dichloropropylene 3,4-Benzofluoranthene
[1,3-dichloropropene] I [Benzo(b)fluoranthene]
2,4-Dimethylphenol 11,12-Benzofluoranthene
2,4-Dinitrotoluene [Benzo(k)fluoranthene]
2,6-Dinitrotoluene Chrysene
1,2-Diphenylhydrazine Acenaphthylene
Ethylbenzene Anthracene
Fluoranthene 1,12-Benzoperylene[Benzo(ghi)perylene]
2018 Total Toxic Organics List for 40 CFR Part 413-Electroplating and Part 433-Metal Finishing Page 1 of 2

Fluorene
Phenanthrene
1,2,5,6-Dibenzanthracene
[Dibenzo(a,h)anthracene]
Indeno (1,2,3-cd)pyrene
[2,3-o phenylene pyrene]
Pyrene
Tetrachloroethylene
Toluene
Trichloroethylene
Vinyl chloride[Chloroethylene]
Aldrin
Dieldrin
Chlordane(technical mixture and
metabolites)
4,4-DDT
4,4-DDE[p,p-DDX]
4,4-DDD[pp-TDE]
Alpha-endosulfan
Beta-endosulfan
Endosulfan Sulfate
Endrin
Endrin aldehyde
Heptachlor
Heptachlor epoxide
[BHC-hexachl orocyclohexane]
Alpha-BHC
Beta-BHC
Gamma-BHC[Lindane]
Delta-BHC
[PCB polychlorinated biphenyls]
PCB-1242 [Arochlor 1242]
PCB-1254 [Arochlor 1254]
PCB-1221 [Arochlor 1221]
PCB-1232 [Arochlor 1232]
PCB-1248 [Arochlor 1248]
PCB-1260[Arochlor 1260]
PCB-1060 [Arochlor 1016]
Toxaphene
2,3,7,8-Tetrachlorodibenzo-p-dioxin
[TCDD]
NOTE:Names in brackets and italics are alternate names for the same chemical
2018 Total Toxic Organics List for 40 CFR Part 413-Electroplating and Part 433-Metal Finishing Page 2 of 2