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NPDES GA0026158 · Clean Water Act

COBB COUNTY WATER SYSTEM (SOUTH COBB WRF), Austell, GA: NPDES GA0026158 discharge permit, effluent exceedances, inspections, penalties

COBB COUNTY WATER SYSTEM (SOUTH COBB WRF), Austell, Georgia: Individual permit GA0026158, held by Cobb County Water System; Publicly owned treatment works; Administratively continued; issued February 21, 2020, term to November 30, 2021; Sewage Treatment Facilities.

7 of the 20 pollutants listed for NPDES GA0026158 have no violation or effluent exceedance.

  • Solids, total suspended: 8 limits, 64 violations of any kind, 64 effluent exceedances, latest February 28, 2025, largest 723% over the limit.
  • Nitrogen, ammonia total [as N]: 4 limits, 28 violations of any kind, 28 effluent exceedances, latest May 31, 2016, largest 678% over the limit.
  • Flow, in conduit or thru treatment plant: 2 limits, 19 violations of any kind, 19 effluent exceedances, latest February 29, 2020, largest 42% over the limit.
  • Phosphorus, total [as P]: 4 limits, 16 violations of any kind, 15 effluent exceedances, latest February 28, 2019, largest 140% over the limit.
  • Coliform, fecal general: 2 limits, 13 violations of any kind, 13 effluent exceedances, latest October 31, 2007, largest 99,999% over the limit.
  • Oxygen, dissolved [DO]: 1 limit, 5 violations of any kind, 5 effluent exceedances, latest September 30, 2024, largest 60% over the limit.
  • Solids, suspended percent removal: 1 limit, 4 violations of any kind, 4 effluent exceedances, latest April 30, 2016, largest 99% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 8 limits, 7 violations of any kind, 3 effluent exceedances, latest November 30, 2006, largest 103% over the limit.
  • Chlorine, total residual: 3 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2006, largest 10% over the limit.
  • Temperature, water deg. fahrenheit: 3 limits, 2 violations of any kind.
  • NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia: 1 limit, 1 violation of any kind.
  • Noel Statre 7Day Chronic Pimephales: 1 limit, 1 violation of any kind.
  • Phosphate, ortho [as P]: 0 limits, 1 violation of any kind.
  • pH: 2 limits.
  • Nitrogen, organic total [as N]: 2 limits.
  • Nitrogen, Kjeldahl, total [as N]: 1 limit.
  • Nitrite + Nitrate total [as N]: 1 limit.
  • Phosphorus, ortho: 1 limit.
  • Solids, sludge, total, dry weight: 1 limit.
  • BOD, carbonaceous, percent removal: 1 limit.

Georgia holds 458 Publicly owned treatment works coverages of this permit type in EPA’s file; 410 were issued before GA0026158. Cobb County Water System holds 25 permits in Georgia.

Other permits held by Cobb County Water System

Coverages issued nearest GA0026158

COBB COUNTY WATER SYSTEM (SOUTH COBB WRF) among its neighbors

297 discharge permits are in the Upper Euharlee Creek subwatershed (HUC 031501041404); GA0026158 is one. Its county: 66, 4 major; GA0026158 is major permit.

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

Identity

FacilityCOBB COUNTY WATER SYSTEM (SOUTH COBB WRF)
PermitteeCobb County Water System
NPDES IDGA0026158
StatusAdministratively continued
TypeIndividual permit
ClassMajor
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedFebruary 21, 2020
ExpiresNovember 30, 2021
AddressAustell, GA 30168
SubwatershedUpper Euharlee Creek (HUC 031501041404)
Program components on fileBiosolids, POTW, Pretreatment
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems
Other EPA IDs (FRS)RCRA handler GAD991274846; ICIS-AIR source GA0000001306700155

NPDES GA0026158: effluent limits and exceedances

COBB COUNTY WATER SYSTEM (SOUTH COBB WRF) (NPDES GA0026158): 20 pollutants on file, 19 limited; 13 with a violation of any kind, 9 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Solids, total suspended86464February 28, 2025723% over the limit
Nitrogen, ammonia total [as N]42828May 31, 2016678% over the limit
Flow, in conduit or thru treatment plant21919February 29, 202042% over the limit
Phosphorus, total [as P]41615February 28, 2019140% over the limit
Coliform, fecal general21313October 31, 200799,999% over the limit
Oxygen, dissolved [DO]155September 30, 202460% over the limit
Solids, suspended percent removal144April 30, 201699% over the limit
BOD, carbonaceous [5 day, 20 C]873November 30, 2006103% over the limit
Chlorine, total residual322June 30, 200610% over the limit
Temperature, water deg. fahrenheit320
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia110
Noel Statre 7Day Chronic Pimephales110
Phosphate, ortho [as P]010
pH200
Nitrogen, organic total [as N]200
Nitrogen, Kjeldahl, total [as N]100
Nitrite + Nitrate total [as N]100
Phosphorus, ortho100
Solids, sludge, total, dry weight100
BOD, carbonaceous, percent removal100

NPDES GA0026158: inspections, violations and enforcement

NPDES GA0026158 (COBB COUNTY WATER SYSTEM (SOUTH COBB WRF)): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES GA0026158

NPDES GA0026158: 20 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.