NC0047384_Pretreatment_IUP_PGBrown01_Modification_20240509

CITY OF GREENSBORO
WATER RESOURCES DEPARTMENT
INDUSTRIAL WASTE SECTION
SIGNIFICANT INDUSTRIAL USER
WASTEWATER DISCHARGE PERMIT
SIU PERMIT NUMBER P031-01
PROCTER AND GAMBLE MANUFACTURING COMPANY
IS AUTHORIZED TO DISCHARGE WASTEWATER
FROM A FACILITY LOCATED AT
6200 BRYAN PARK ROAD
BROWN SUMMIT, NORTH CAROLINA
into the City of Greensboro Sanitary Sewer System
to the T.Z. OSBORNE Water Reclamation Facility
[NPDES PERMIT NUMBER NCO047384]
in accordance with the limitations and conditions set forth in this permit.
This permit shall become effective
SEPTEMBER 12, 2023
This permit and the authorization to discharge shall
expire at midnight on
AUGUST 31, 2028
or upon permit reissuance, whichever comes first.
Amy Va i oski Date
Pretreat ent Coordinator

Page 3, SIU Permit#P031-01
PROCTER AND GAMBLE-BS
Effective September 12, 2023
SECTION I—PERMIT MODIFICATION HISTORY
DATE MODIFIED REASON & DESCRIPTION OF MODIFICATION OR ACTION
March 30, 1998 PERMIT RENEWAL
September 21, 2001 New Pharmaceutical Manufacturing Categorical Effluent Limitations
Added [40 CFR Part 439.46]
Slurries were included in the P&G—Swing Rd permit and should have
been included in P&G Brown Summit Permit instead. Page 3A -
September 28, 2001 Description of Discharge Pipe 01 —Process Wastewater From
antiperspirant, toothpaste and denture adhesive manufacturing processes
including dentifrice slurries.
Include submittal dates for self-monitoring:
Samples for Jan 1-Jim 30 shall be taken in months Jan., Feb., and/or
July 1, 2002 March and compliance report submitted on or before Apr. 20th of each
year. Samples for Jul. 1-Dec. 31 shall be taken in months Jul., Aug.,
and/or Sept. and compliance report submitted on or before Oct. 20th of
each year.
Flow readings for compliance are to be obtained from effluent process
October 10, 2002 meter in lieu of incoming water meter (City meter). Ethyl Acetate limit is
being imposed in lieu of monitoring only. Two sampling events have
shown this pollutant to be present in P&G's discharge.
May 1, 2003 PERMIT RENEWAL
January 11, 2004 Increase Flow Limitation—Increase flow from 400,000 gpd daily
maximum to 500,000 gpd daily maximum due to increase in business
Zinc Limit—P&G will be producing a new product that will increase the
July 1, 2004 amount of zincdischarged to the POTW. This increase in zinc will be
greater than 5%of the MARL, therefore, a 13 pound daily maximum zinc
limit is being incorporated into this permit.
Transfer of flow from North Buffalo to T. Z. Osborne. A new lift station,
January 1, 2005 Reedy Fork, was constructed to handle growth on the North side of town.
The North Buffalo facility could not handle the increase in flow.
Zinc will no longer be 5% of POTW MAHL once P&G begins discharging
March 1, 2005 to T. Z. Osborne. Zinc limit is being removed and will be a monitoring
only parameter.
PERMIT RENEWAL
May 1, 2007 Remove requirement for back-up generator (page 8). Should power go
out, no discharge can occur because pumps shut down.
PERMIT RENEWAL
Page 4, Section II.B. Modification of pretreatment processes; Page 5,
Section IIL —Reduced Daily Maximum flow limit of 500,000 gpd to
September 1, 2008 Monthly Average limit of 375,000 gpd; Page 6, Section IV.A.3. —
Incorporated requirement to submit flow data by the 15th for the previous
month's readings; Section IV.A.4. — Clarified reporting periods for meter
calibration; Section; Section IV.A.5. —Included additional POTW contact
information; Page 7, Section IV.B. —Modification of language regarding
September 12,2023 Permit Modification

Page 3A, SIU Permit#P031-01
PROCTER AND GAMBLE-BS
Effective September 12, 2023
SECTION I—PERMIT MODIFICATION HISTORY cont'd
DATE MODIFIED REASON & DESCRIPTION OF MODIFICATION OR ACTION
alternate test methods & incorporated requirement of semi-annual
September 1, 2008 certification statement for pollutants not present; Page 9, Section IV.D. -
(cont'd) Modified perm ittee sampling requirements and due dates and
incorporated requirement to submit written notice of zero discharge for a
reporting period.
January 1, 2009 Flow Increase from monthly average of 375,000 gpd to 450,000 gpd
Omission of total suspended report submittal data for quarterly sampling
January 1, 2010 (page 9). Report due 15th of month for prior month's sampling (ex.
March sampling, report due by April 15th)
Permit Modification
1) Page 5, Section III-Changed minimum sampling requirement for City
to 1/year. 2) Page 6, Section IV.A.4.—Changed effluent meter calibration
July 1, 2011 requirement from once per six-month period to once a calendar year; 3)
Page 6, Section IV.A.5. and 6. - Deleted names from permit and included
the position titles only; 4) Page 9, Section IV.D. —Report Submittal date
changed to 15th in lieu of 20th
PERMIT RENEWAL
Section III— City monitoring frequency set to 1/6 months;Added
applicability of 40 CFR Part 439.36 and cyanide limit because at least
September 1, 2013 one product uses chemical synthesis in the manufacturing process;
Removed TSS limit; Section IV. -Added Special Condition G (Slug/Spill
Control Plan)per DWQ guidance; Added Special Condition H-Cyanide
Certification;Added Special Condition I for sampling/review of newly
regulated parameters.
Permit Modification
Section IV. Special Conditions, A 10,flow, BOD, TSS and Zinc
January 1, 2018 compliance will be based on the combined, respective, parameter
averages from P031 pipe -01 and pipe -02. Moved re-confirmation
organic parameters from page 5 to page 5A.
September 1, 2018 PERMIT RENEWAL
Transferred 100,000gpd of flow from Pipe 02 to Pipe 01 (Pipe 02 now
limited to 100,000gpd and Pipe 01 now limited to 550,000gpd); Special
Conditions Changes: Added Flow Measurement Calibration/ Verification
Section; Modified Flow Language;Added Combined Limitation
Calculations Section; Modified Cyanide Certification language; Modified
Annual Chemical Reconfirmation Analyses language.
September 1, 2023 PERMIT RENEWAL
September 12,2023 PERMIT MODIFICATION
Cover page modified to correct permit effective dates. Although the
remainder of the permit indicated effective September 1, 2023, Cover did
not.
September 12,2023 Permit Modifcation