Clean Water Act discharge permit · NPDES GA0046761

COBB COUNTY WATER SYSTEM (NORTHWEST WRF), Kennesaw, GA: NPDES GA0046761 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
19Pollutants under a numeric limit
10Pollutants with an effluent exceedance
0Inspections on file
1Formal enforcement actions

COBB COUNTY WATER SYSTEM (NORTHWEST WRF), held by Cobb County Water System, holds NPDES permit GA0046761. EPA’s file records it issued November 15, 2016 and expiring November 30, 2021.

COBB COUNTY WATER SYSTEM (NORTHWEST WRF), Kennesaw, Georgia: Individual permit GA0046761, held by Cobb County Water System; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued November 15, 2016, term to November 30, 2021; Sewage Treatment Facilities.

Nitrogen, ammonia total [as N]: 4 limits, 35 violations of any kind, 35 effluent exceedances, latest July 31, 2026, largest 2,818% over the limit.
BOD, carbonaceous [5 day, 20 C]: 8 limits, 32 violations of any kind, 32 effluent exceedances, latest August 31, 2024, largest 99,999% over the limit.
Solids, total suspended: 8 limits, 11 violations of any kind, 11 effluent exceedances, latest July 31, 2024, largest 1,579% over the limit.
Phosphorus, total [as P]: 4 limits, 12 violations of any kind, 9 effluent exceedances, latest July 31, 2024, largest 820% over the limit.
Turbidity: 1 limit, 4 violations of any kind, 4 effluent exceedances, latest September 30, 2024.
Flow, in conduit or thru treatment plant: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest September 30, 2009, largest 27% over the limit.
E. coli: 0 limits, 3 violations of any kind, 3 effluent exceedances, latest July 31, 2024, largest 99,999% over the limit.
Chlorine, total residual: 3 limits, 2 violations of any kind, 2 effluent exceedances, latest July 31, 2024, largest 200% over the limit.
pH: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest January 31, 2019.
Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest June 30, 2024, largest 20% over the limit.
Nitrogen, nitrite total [as NO2]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
BOD, carbonaceous, percent removal: 1 limit, 1 violation of any kind, 0 effluent exceedances.
Solids, suspended percent removal: 1 limit, 1 violation of any kind, 0 effluent exceedances.
Phosphate, ortho [as P]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Coliform, fecal general: 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.
Phosphorus, ortho: 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.

May 25, 2026: WW SSO - Discharge to Waters (ST6).
April 2, 2026: State Administrative Order of Consent (State), $11,060 state or local penalty.

Georgia holds 458 Publicly owned treatment works coverages of this permit type in EPA’s file; 270 were issued before GA0046761. Cobb County Water System holds 25 permits in Georgia.

Other permits held by Cobb County Water System

COBB COUNTY WATER SYSTEM (NOONDAY CREEK WRF), Kennesaw: GA0024988, issued February 21, 2020
COBB COUNTY WATER SYSTEM (R.L. SUTTON WRF), Smyrna: GA0026140, issued February 21, 2020
COBB COUNTY WATER SYSTEM (SOUTH COBB WRF), Austell: GA0026158, issued February 21, 2020
SOUTH COBB WATER RECLAMATION FACILITY, Austell: GAIS12035, issued June 28, 2012
RL SUTTON WRF, Smyrna: GAIS12504, issued August 15, 2012
MURDOCK ROAD WATER MAIN REPLACEMENT: GAR247187, issued September 23, 2013
MOUNTAIN BREEZE ESTATES AND BIG OAKS SUBDIVISION WATER MAIN REPLACEMENT: GAR247197, issued September 23, 2013
STILESBORO COVE SUBDIVISION WATER MAIN REPLACEMENT: GAR247198, issued September 23, 2013
DUE WEST HILLS WATER MAIN REPLACEMENT: GAR248253, issued September 23, 2013
GAYDON STATION WATER MAIN REPLACEMENT: GAR248346, issued September 23, 2013

Coverages issued nearest GA0046761

September 26, 2016: BARROW COUNTY BOARD OF COMMISSIONERS (BARBER CREEK WRF), Statham, GA0038733, held by Barrow County Board of Commissioners
September 26, 2016: LUDOWICI, CITY OF (LUDOWICI WPCP), Ludowici, GA0049166, held by Ludowici, City of
September 27, 2016: ELLIJAY-GILMER COUNTY WATER & SEWERAGE AUTHORITY (ELLIJAY WPCP), Ellijay, GA0021369, held by ELLIJAY WPCP
October 11, 2016: ALAPAHA, TOWN OF (ALAPAHA WPCP), Alapaha, GA0033596, held by Alapaha, Town of
October 21, 2016: BRUNSWICK-GLYNN COUNTY JWSC (SAINT SIMONS ISLAND WPCP), Saint Simons Island, GA0021521, held by Brunswick-Glynn County Joint Water and Sewer Commission
November 23, 2016: EMERSON, CITY OF (HENRY JORDAN WPCP), Emerson, GA0026115, held by Emerson, City of
December 19, 2016: BOSTON, CITY OF (BOSTON WPCP), Boston, GA0033715, held by Boston, City of
December 19, 2016: SUNBELT PLANTATIONS INC. (MAGNOLIA PLANTATION WPCP), Eldorado, GA0033928, held by Sunbelt Plantations, Inc.
December 22, 2016: DEKALB COUNTY DEPARTMENT OF WATERSHED MANAGEMENT (SNAPFINGER CREEK AWWTF), Decatur, GA0024147, held by Dekalb County Department of Watershed Management
December 22, 2016: DEKALB COUNTY DEPARTMENT OF WATERSHED MANAGEMENT (POLEBRIDGE CREEK AWWTF), Lithonia, GA0026816, held by Dekalb County Department of Watershed Management

COBB COUNTY WATER SYSTEM (NORTHWEST WRF) among its neighbors

EPA’s permit file holds 297 discharge permits in the Upper Euharlee Creek subwatershed (HUC 031501041404), GA0046761 among them. Its county holds 66, 4 of them major permits; GA0046761 is a major permit.

Other permits in the Upper Euharlee Creek subwatershed (HUC 031501041404)

(CED) CEDARTOWN, GA, Cedartown: GAIS14166, minor permit, permit term to May 31, 2027
11 GARDEN GATE, Kingston: GAR18C23D, minor permit, permit term to July 31, 2028
13 GARDEN GATE, Kingston: GAR18C23F, minor permit, permit term to July 31, 2028
159 HAPPY VALLEY, Dallas: GAR18C223, minor permit, permit term to July 31, 2028
1872 TOWNSHIP, Rockmart: GAR396699, minor permit, permit term to July 31, 2028
1920 - ENPLAS (USA) INC., Marietta: GAIS14911, minor permit, permit term to May 31, 2027
204 BATES FARM, Cartersville: GAR18C1A3, minor permit, permit term to July 31, 2028
242 OLD SANDHILL ROAD, Carrollton: GAR397703, minor permit, permit term to July 31, 2028
28 COHRAN RD, DALLAS, Dallas: GAR18C1F4, minor permit, permit term to July 31, 2028
30 BATES FARM, Cartersville: GAR397762, minor permit, permit term to July 31, 2028

Identity

Facility as filed	COBB COUNTY WATER SYSTEM (NORTHWEST WRF)
Permittee as filed	Cobb County Water System
NPDES ID	GA0046761
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	November 15, 2016
Expiration date	November 30, 2021
Address	Kennesaw, GA 30144
Subwatershed	Upper Euharlee Creek (HUC 031501041404)
Program components on file	POTW, Pretreatment
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

22Pollutants on file
19Under a numeric limit
14With a violation of any kind
10With 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]	4	35	35	July 31, 2026	2,818% over the limit
BOD, carbonaceous [5 day, 20 C]	8	32	32	August 31, 2024	99,999% over the limit
Solids, total suspended	8	11	11	July 31, 2024	1,579% over the limit
Phosphorus, total [as P]	4	12	9	July 31, 2024	820% over the limit
Turbidity	1	4	4	September 30, 2024
Flow, in conduit or thru treatment plant	2	3	3	September 30, 2009	27% over the limit
E. coli	0	3	3	July 31, 2024	99,999% over the limit
Chlorine, total residual	3	2	2	July 31, 2024	200% over the limit
pH	2	1	1	January 31, 2019
Oxygen, dissolved [DO]	1	1	1	June 30, 2024	20% over the limit
Nitrogen, nitrite total [as NO2]	0	2	0
BOD, carbonaceous, percent removal	1	1	0
Solids, suspended percent removal	1	1	0
Phosphate, ortho [as P]	0	1	0
Coliform, fecal general	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
Phosphorus, ortho	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

1Single-event violations

Date	What EPA recorded	Agency
May 25, 2026	WW SSO - Discharge to Waters	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES GA0046761.

Formal enforcement and penalties

1 formal actions, 1 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.

Date	What EPA recorded	Agency	Federal penalty	State or local penalty
April 2, 2026	State Administrative Order of Consent	State		$11,060

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES GA0046761.

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

This public-records page covers Clean Water Act NPDES permit GA0046761 for Cobb County Water System (Northwest WRF) in Kennesaw, GA, a major publicly owned treatment works that EPA's file shows as administratively continued. The page lists 19 pollutants under a numeric limit and 10 pollutants with an effluent exceedance, with the permit's issue date of November 15, 2016 and expiration date of November 30, 2021 as they stood when the record was loaded on October 14, 2026.