Clean Water Act discharge permit · NPDES GA0030121

THOMASTON, CITY OF (TOWN BRANCH WPCP), Thomaston, GA: NPDES GA0030121 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
18Pollutants under a numeric limit
14Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

THOMASTON, CITY OF (TOWN BRANCH WPCP), held by Thomaston, City of, holds NPDES permit GA0030121. EPA’s file records it issued May 14, 2018 and expiring May 31, 2023.

THOMASTON, CITY OF (TOWN BRANCH WPCP), Thomaston, Georgia: Individual permit GA0030121, held by Thomaston, City of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued May 14, 2018, term to May 31, 2023; Sewage Treatment Facilities.

Nitrogen, ammonia total [as N]: 28 limits, 34 violations of any kind, 34 effluent exceedances, latest October 31, 2016, largest 500% over the limit.
Solids, suspended percent removal: 1 limit, 34 violations of any kind, 34 effluent exceedances, latest February 29, 2008, largest 680% over the limit.
BOD, 5-day, 20 deg. C: 20 limits, 25 violations of any kind, 25 effluent exceedances, latest May 31, 2026, largest 489% over the limit.
BOD, 5-day, percent removal: 1 limit, 19 violations of any kind, 19 effluent exceedances, latest October 31, 2007, largest 567% over the limit.
Coliform, fecal general: 2 limits, 13 violations of any kind, 13 effluent exceedances, latest March 31, 2012, largest 99,999% over the limit.
pH: 2 limits, 10 violations of any kind, 10 effluent exceedances, latest October 31, 2023.
Oxygen, dissolved [DO]: 2 limits, 9 violations of any kind, 9 effluent exceedances, latest June 30, 2008, largest 100% over the limit.
Solids, total suspended: 8 limits, 6 violations of any kind, 6 effluent exceedances, latest March 31, 2025, largest 201% over the limit.
Flow, in conduit or thru treatment plant: 2 limits, 4 violations of any kind, 4 effluent exceedances, latest April 30, 2025, largest 25% over the limit.
Mercury, total [as Hg]: 0 limits, 3 violations of any kind, 3 effluent exceedances, latest March 31, 1995, largest 900% over the limit.
Chlorine, total residual: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2006, largest 5% over the limit.
Cadmium, total [as Cd]: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest September 30, 1994, largest 100% over the limit.
Copper, total [as Cu]: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest March 31, 1995, largest 500% over the limit.
Zinc, total [as Zn]: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest September 30, 1994, largest 270% over the limit.
Phosphorus, total [as P]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Nitrogen, organic total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl, total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Phosphate, ortho [as P]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Solids, sludge, total, dry weight: 1 limit, 0 violations of any kind, 0 effluent exceedances.
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Noel Statre 7Day Chronic Pimephales: 1 limit, 0 violations of any kind, 0 effluent exceedances.

August 13, 2026: Evaluation (S).
January 27, 2026: Notice of Noncompliance Issued (State).

Georgia holds 458 Publicly owned treatment works coverages of this permit type in EPA’s file; 369 were issued before GA0030121. Thomaston, City of holds 3 permits in Georgia.

Other permits held by Thomaston, City of

THOMASTON, CITY OF (BELL CREEK WPCP), Thomaston: GA0020079, issued February 13, 2018
THOMASTON, CITY OF, Thomaston: GAG820057, issued July 20, 2021

Coverages issued nearest GA0030121

February 16, 2018: RICEBORO, CITY OF (RICEBORO WPCP), Riceboro, GA0038491, held by Riceboro, City of
March 21, 2018: AILEY, CITY OF (AILEY WPCP), Ailey, GA0049247, held by Ailey, City of
April 20, 2018: GRIFFIN, CITY OF (CABIN CREEK WPCP), Griffin, GA0020214, held by Griffin, City of
April 20, 2018: BRUNSWICK-GLYNN COUNTY JOINT WATER & SEWER COMISSION (SOUTHPORT WPCP), Brunswick, GA0038938, held by Brunswick-Glynn County Joint Water & Sewer Commission
April 20, 2018: CRAWFORD, CITY OF (CRAWFORD WPCP), Crawford, GA0039144, held by Crawford, City of
May 14, 2018: BANKS COUNTY BOARD OF COMMISSIONERS (HUDSON RIVER WPCP), Commerce, GA0050215, held by Banks County Board of Commissioners (BOC)
May 30, 2018: WARNER ROBINS, CITY OF (OCMULGEE RIVER WPCP), Warner Robins, GA0037796, held by Warner Robins, City of
June 8, 2018: ROCKDALE COUNTY WATER RESOURCES (SCOTT CREEK WPCP), Conyers, GA0026239, held by Rockdale County Water Resources
June 14, 2018: WARNER ROBINS, CITY OF (SANDY RUN CREEK WPCP), Warner Robins, GA0030325, held by Warner Robins, City of
July 12, 2018: MONROE, CITY OF (JACK'S CREEK WPCP), Monroe, GA0047171, held by Monroe, City of

THOMASTON, CITY OF (TOWN BRANCH WPCP) among its neighbors

EPA’s permit file holds 229 discharge permits in the Cole Creek-Tobesofkee Creek subwatershed (HUC 030701031401), GA0030121 among them. Its county holds 11, 2 of them major permits; GA0030121 is a major permit.

Other permits in the Cole Creek-Tobesofkee Creek subwatershed (HUC 030701031401)

120 ABBERLEY LN, Macon: GAR3976C6, minor permit, permit term to July 31, 2028
3430 AIRLINE ROAD, Mcdonough: GAR18C1EF, minor permit, permit term to July 31, 2028
3450 AIRLINE ROAD, Mcdonough: GAR18C1E7, minor permit, permit term to July 31, 2028
A NEW FACILITY FOR UNIVERSAL INDUSTRIAL GASES, INC., Warner Robins: GAR153582, minor permit, permit term to July 31, 2018
AAA COOPER TRANSPORTATION - MAC, Macon: GAIS14617, minor permit, permit term to May 31, 2027
AGGREGATES USA, LLC (MACON QUARRY), Macon: GAG300102, minor permit, permit term to July 31, 2026
ALDEN ESTATES, PHASE 1, LOT 14, 250 GARNET DR S, MBC, ESPCP, Lizella: GAR39774D, minor permit, permit term to July 31, 2028
AMAZON.COM SERVICES LLC ? WGR1, Macon: GAIS14937, minor permit, permit term to May 31, 2027
ANDERSON COVE, Covington: GAR39778A, minor permit, permit term to July 31, 2028
ARCILLA MINING & LAND COMPANY, LLC (M94L), Dry Branch: GA0050273, minor permit, permit term to June 30, 2023

Identity

Facility as filed	THOMASTON, CITY OF (TOWN BRANCH WPCP)
Permittee as filed	Thomaston, City of
NPDES ID	GA0030121
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	May 14, 2018
Expiration date	May 31, 2023
Address	Thomaston, GA 30286
Subwatershed	Cole Creek-Tobesofkee Creek (HUC 030701031401)
Program components on file	POTW, Pretreatment
NAICS	221320 – Sewage Treatment Facilities
SIC	1623 – Water, Sewer, And Utility Lines

Effluent limits and exceedances

22Pollutants on file
18Under a numeric limit
14With a violation of any kind
14With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	28	34	34	October 31, 2016	500% over the limit
Solids, suspended percent removal	1	34	34	February 29, 2008	680% over the limit
BOD, 5-day, 20 deg. C	20	25	25	May 31, 2026	489% over the limit
BOD, 5-day, percent removal	1	19	19	October 31, 2007	567% over the limit
Coliform, fecal general	2	13	13	March 31, 2012	99,999% over the limit
pH	2	10	10	October 31, 2023
Oxygen, dissolved [DO]	2	9	9	June 30, 2008	100% over the limit
Solids, total suspended	8	6	6	March 31, 2025	201% over the limit
Flow, in conduit or thru treatment plant	2	4	4	April 30, 2025	25% over the limit
Mercury, total [as Hg]	0	3	3	March 31, 1995	900% over the limit
Chlorine, total residual	1	1	1	December 31, 2006	5% over the limit
Cadmium, total [as Cd]	0	1	1	September 30, 1994	100% over the limit
Copper, total [as Cu]	0	1	1	March 31, 1995	500% over the limit
Zinc, total [as Zn]	0	1	1	September 30, 1994	270% over the limit
Phosphorus, total [as P]	4	0	0
Nitrogen, organic total [as N]	1	0	0
Nitrogen, Kjeldahl, total [as N]	1	0	0
Nitrite + Nitrate total [as N]	1	0	0
Phosphate, ortho [as P]	1	0	0
Solids, sludge, total, dry weight	1	0	0
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia	1	0	0
Noel Statre 7Day Chronic Pimephales	1	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES GA0030121.

Inspections

Date	What EPA recorded	Agency
August 13, 2026	Evaluation	S

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

Date	What EPA recorded	Agency
January 27, 2026	Notice of Noncompliance Issued	State

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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers the NPDES GA0030121 discharge permit held by Thomaston, City of for the THOMASTON, CITY OF (TOWN BRANCH WPCP) facility in Thomaston, GA, showing an administratively continued status with a Major Discharger class. The page lists 18 pollutants under a numeric limit and 14 pollutants with an effluent exceedance, within the Cole Creek-Tobesofkee Creek subwatershed (HUC 030701031401).