NC0047384_Pretreatment_IUP_Gilbarco_Modification_20240509

NC Division of Water Resources
Streamlined Industrial User Permit (IUP) Review
Streamlined Industrial User Permit Review Submittal Form
One form may cover multiple IUPs submitted together.
Program Name: City of Greensboro
WWTP Name: T.Z. Osborne WRRF
Permit Renewals
Date application(s) received
Date of most recent on-site inspection(s)
Date allocation table updated
Are any changes to SIU name, IUP number, pipe number, limits or treatment units?
(Changes do not have to be listed here)
Permit Modifications:
NO Are any changes to SIU name, IUP number, pipe number, limits or treatment units?
(Changes do not have to be listed here)
I certify that the attached permit(s) has been prepared under my direct supervision and that the permit
meets the requirements of all applicable Federal and State Rules and requirements.
Signature of approved permit writer Date
[e-mail] 0125
Email Address: you will receive an email confirmation of receipt Approval number
Streamlined IUP Review Submittal Form: Version 1.0
Revision Dates: 2/16/2011

CITY OF GREENSBORO
WATER RESOURCES DEPARTMENT
INDUSTRIAL WASTE SECTION
SIGNIFICANT INDUSTRIAL USER
WASTEWATER DISCHARGE PERMIT
SIU PERMIT NUMBER P033
GILBARCO, INC
IS AUTHORIZED TO DISCHARGE WASTEWATER
FROM A FACILITY LOCATED AT
7300 WEST FRIENDLY AVENUE
GREENSBORO, 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
JAN UARY 9, 2024
This permit and the authorization to discharge shall
expire at midnight on
AUGUST 31, 2028
or upon permit reissuance, whichever comes first.
jM' o q/'-�w
Amy Vdwinoski Date
Pretreatment Coordinator

Page 2, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
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.
Janzimy 9,2024 Permit Modification

Page 3, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
SECTION I- PERMIT MODIFICATION HISTORY
DATE MODIFIED REASON & DESCRIPTION OF MODIFICATION OR ACTION
September 1, 1998 PERMIT RENEWAL-No changes
February 9, 2000 Name Change (cover page) and inclusion of tvvo parts washers as
regulated wastestreams (page 3), monitoring frequency (page 4)
April 2, 2002 Name change due to purchase of Marconi Commerce Systems by
Danaher. No changes in operation or effluent characteristics
March 1, 2003 Inclusion of additional process discharges. This modification will add
additional Pipes.
September 1, 2003 PERMIT RENEWAL-No changes
September 15,2003 Increase inflow limit for Pipe 02 to 20,500 and Pipe 04 to 5,500. This
increase is being made to allow for growth in business at Gilbarco
from these hvo processes.
December 1, 2003 Increase inflow limit for Pipe 03 to 5,500 gpd(daily max.). This
increase is being made to allow for growth in business at Gilbarco.
September 15, 2004 Inclusion of additional process discharge. Pipe 05-Machining. This
pipe is regulated under 40 CFR Part 433-Metal Finishing.
October 1, 2004 Delete Section IV. C. Zero Discharge from Machining Area. Gilbarco
will be discharging through Pipe 05- Machining. Removal of this
clause was omitted during the inclusion of Pipe 05.
December 1, 2004 Flow increase for Pipe 01 from 10,000 gpd maximum limit to 20,000
gpd maximum limit
October 1, 2006 Flow increase for Pipe 02 from 20,500 gpd maximum limit to 30,000
gpd maximum limit
September 1, 2008 PERMIT RENEWAL
Page 4, Section 11. A -Pipe 05, Machining, changed to zero
discharge; Section II1, B, C and D-Removed Pipe 05; Section IL B.2,
Page 4- Pretreatment equipment changed based on a review by SIU of
current treatment processes; Page 5, Section III flow limit Pipe 01
changed from daily maximum of 20,000 to monthly average of 8,000;
Page 6, Section III flow limit Pipe 02 changed from daily maximum of
30,000 to monthly average of 18,000; Page 7, Section III flow limit
Pipe 03 changed from daily maximum of 5,500 to monthly average of
3,000; Page 8, Section III flow limit Pipe 04 changed from daily
maximum of 5,500 to monthly average of 1,000; Page 9, Section III,
effluent limits removed, changed to zero discharge Section IV.A, Page
10-added due dates for TTO certification; Section IV.B, added flow
submittal due date requirement; Page 11, Section IV.C, added
requirements for self-monitoring reports when no discharge.
July 1, 2011 1) Pages 5,6,7,8, Section III-Changed Minimum sampling
requirement for City to11year; 2) Page 11.IV.B- Changed effluent
meter calibration requirement from once per six-month period to once
a calendar year; 3) Page 11 Section IV.C. - Changed self-monitoring
report due date to 151h of month
January 9,2024 Permit Modification

Page 3A, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
SECTION I- PERMIT MODIFICATION HISTORY CONT'D
DATE MODIFIED REASON & DESCRIPTION OF MODIFICATION OR ACTION
September 1, 2013 PERMIT RENEWAL
Section IV. -Modified Special Condition A (TTO);Added Special
Condition E (Slug/Spill Control Plan); Section III-Added TTO
sampling frequency and sample type for POTW on all limits pages;All
changes per DWQ guidance; Section III-Pipe 01 flow increased to
10,000 gpd monthly average; Pipe 02 decreased to 16,000 gpd monthly
average per user request.
May 1, 2015 Permit Modification
Increased Pipe 01 permitted flow to 12,000 gpd and decreased Pipe 02
permitted flow to 14,000 gpd per user request with no net change in
flow. Replaced Pipe 01 categorically regulated zinc phosphating
process with zirconium process that is not clearly categorically
regulated. Increased cyanide limit on Pipe 02 to 0.50mg/7.
February 27, 2017 Permit Modification
The discharge for Pipe 01 will include other locations 1-4 and will
have a proportion assigned based on five years of sampling data.
Locations 1-4 will be combined as new Pipe 01 to provide a
composited sample representative of the four ancillary locations. This
will simplify sampling and compliance judgment to one combined
sample since all four locations are subject to the same limits. Location
5 will be non-discharging-- with certification of non-discharge
submitted once per year. Descriptions,processes and flow reporting of
each separate location remain the same and will continue to be defined
as such in the permit. —
April 19, 2018 Permit Modification
Set provisional limit for Cyanide while investigating likely sources of
interference.
September 1, 2018 PER RENEWAL
Provisional Cyanide Limit Retained; Special Conditions Changes:
Added Flow Measurement Calibration/Verification Section; Modified
Flow Language; Modified Total Toxic Organics Certification
language.
February 3, 2022 PERMIT MODIFCATION
Section ILA.-Location 3 modified to zero discharge; Section
IL B,C,D,&E.-Removed Location 3; Section IL E.-updated Flow
Average Proportioning for composites, added proportioning for grabs;
Section III, page 5-removed Location 3,page 5A added Location 3 as
zero discharge wastestream.
September 1, 2023 PERMIT RENEWAL
January 9, 2024 PERMIT MODIFICATION EFFECTIVE
Section ILA. - Corrected description of discharge for Location 2;
Section III. -Corrected description of discharge for Locations 2 & 3
January 9,2024 Permit Modification

Page 4, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
SECTION II - GENERAL INFORMATION
A. Description of Discharge
Process Wastewater From new Pipe 01:
Location 1: Zirconium process with pretreatment
Location 2: Better engineering/Ranshoff washer—cleaning operation
Location 3: Tumbling room - zinc and aluminum parts (zero discharge)
Location 4: Magnus washer—cleaning operation
Location 5: Spent Machining Coolant Tank (zero discharge)
Locations 1 —5 do not include domestic waste discharge
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.
Location 1 Location 2 Location 4
Hold/EQ/Spill Protection No pretreatment processes No pretreatment processes
Chemical Precipitation
Flocculation
pH Adjustment _
Sedimentation
Bag/Sand Filter
Filter Press
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 Locations
Location 1: Discharge valve behind coalescing treatment tanks and in front of paint spray
booth#2 (within the Paint Department)
Location 2: Floor Drain in the Fast Factory Room
Location 4: Sample from one wash tank and two rinse tanks (1/3 each)
January 9,2024 Permit Modification

Page 4A, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
D. Composite Sampling Technique
Location 1 will be a 24-hour composite sample over the workday
Locations 2 and 4 will be grab samples.
These samples are all composited into Pipe 01 sample according to the flow volume proportions
in Section E below.
E. Sample Collection: Flow Average Proportioning
Composite Samples - Samples made up of average flow representative portions collected from
all three locations (1, 2, and 4)will be measured via a graduated cylinder into one single plastic
1-liter bottle for analyses requiring a composite sample. The average flow volume proportions
(based on a percentage-updated in 2022) are as follows:
Location 1— 950 milliliters
Location 2— 40 milliliters
Location 4— 10 milliliters
Grab Samples—Grab samples collected from all three locations (1, 2, and 4) will be measured
via a graduated cylinder into one single plastic 500mL bottle for analyses requiring a grab
sample. The average flow volume proportions are as follows:
Location 1 —475 milliliters
Location 2—40 milliliters
Location 4— 10 milliliters
January 9,2024 Permit Modification

Page 5, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
SECTION III - EFFLUENT LIMITS AND MONITORING REQUIREMENTS
Effluent Limits and Monitoring Requirements for
Location 1 : Zirconium Treatment, Parts Washing
Location 2 : Ranshoff washing & cleaning
Location 4 : Magnus washing & cleaning
THIS FACILITY IS REGULATED BY FEDERAL CATEGORICAL PRETREATMENT
STANDARDS FOR NEW SOURCE METAL FINISHING
40 CFR PART 433.17
EFFLUENT LIMITATIONS MONITORING FREQUENCY
EFFLUENT Daily Monthly Sample PERMITTEE CITY OF
CHARACTERISTICS Maximum Average Type
GREENSBORO
Flow (gallons per day) 30,000 # DAILY
Cadmium T m /1 0.11 m /I 0.07 m /1 C 2/6 months 1/ ear
Chromium T m /1 2.77 m /1 1.71 m /I C 2/6 months 1/ ear
Copper T m /1 3.38 mg/1 2.07 m /I C 2/6 months 1/ ear
Lead T m /1 0.69 m /I 0.43 m /I C 2/6 months 1/ ear
Nickel T m /1) 3.98 m /I 2.38 m /I C 2/6 months 1/ ear
Silver T m /1 0.43 m /I 0.24 m /1 C 2/6 months 1/ ear
Zinc T) m /1 2.61 m /I 1.48 m /I C 2/6 months 1/ ear
Cyanide (total) m /1 0.50 m /I - Grab 1/6 months 1/ ear
Total Toxic Or anics^ 2.13 m /I - Grab *x xx
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]
January 9,2024 Permit Modification

Page 5A, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
SECTION III - EFFLUENT LIMITS AND MONITORING REQUIREMENTS
Effluent Limits and Monitoring Requirements for
Location 3 —Zinc & Aluminum Parts Tumbling
Location 5—Spend Machining Coolant Tank
THIS FACILITY IS REGULATED BY FEDERAL CATEGORICAL PRETREATMENT
STANDARDS FOR NEW SOURCE METAL FINISHING
[40 CFR PART 433.171
Any wastewater generated in these areas is to be disposed of offsite. Manifests must be
kept on file for all wastewaters hauled offsite for disposal and shall be available to the IWS
upon request.
Location 3 - Tumbling has no direct discharge connection to the City of Greensboro
Sanitary Sewer. At no time is there to be a discharge from the tumbling operation pits to
the regulated process discharge point without first submitting a written request and
receiving approval and permit modification from the City of Greensboro.
Location 5 - Machining has no direct discharge connection to the City of Greensboro
Sanitary Sewer. At no time is there to be a discharge from any process in the Machining
Coolant Tank via hoses, piping and/or pumps to the regulated process discharge point
without first submitting a written request and receiving approval and permit modification
from the City of Greensboro.
Notification is required prior to installation of any new Machining lines or changes in the
current processes.
Gilbarco is required to submit an annual certification statement to the City of Greensboro
by January 1511' for the prior year. Certification statements must not be signed prior to the
end of the reporting year.
CERTIFICATION STATEMENT
"I certify to the best of my knowledge and belief, no dumping from Location 5-Machining into
the sanitary sewer has occurred since filing the last annual certification report."
I hereby certify that I have examined and am familiar with the information submitted in this
document and that the information is trite, accurate and complete. I am aware that there are
significant penalties for submitting false information."
January 9,2024 Permit Modification

Page 6, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
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 I 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 Meter: The incoming process flow 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 Industrial Waste Section monthly. Flow data is to
be submitted by the 151" 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.
See Flow Meter Calibration/Verification Requirements in another subpart of this section.
Jamuag 9,2024 Permit Modification

Page 7, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
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 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 tivho 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 knoiving violations. [40 CFR Part 403.6]
January 9, 2024 Permit 11odification

Page 8, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
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 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 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 contain, at a
minimum the following elements:
■ 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 METER 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.
January 9,2024 Permit Modification

Page 9, SIU Permit#P033
GILBARCO, INC.
Effective January 9, 2024
The following flow meters/systems have no calibration requirements:
I. 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.
Jamimy 9,2024 Permit Allodification