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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in the United States

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17,009 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

States

17,009 results

CompareNameNative sizeYear
Bluffview Sanitary District - STPBaraboo0.03 MGD (million gallons per day)2022
DEER PARK STPDeer Park0.03 MGD (million gallons per day)2022
MARIBEL WWTPMaribel0.03 MGD (million gallons per day)2022
HOLLANDALE STPHollandale0.03 MGD (million gallons per day)2022
AURORA SD #1 WWTPFlorence0.03 MGD (million gallons per day)2022
LIBERTY SD #1 - STPValders0.03 MGD (million gallons per day)2022
ROZELLVILLE SD #1 - STPStratford0.03 MGD (million gallons per day)2022
MILAN SD - STPJohnson Creek0.03 MGD (million gallons per day)2022
PLYMOUTH SD #1 STPHanover0.03 MGD (million gallons per day)2022
STONE LAKE STPStone Lake0.03 MGD (million gallons per day)2022
Westport STFWestport0.029 MGD (million gallons per day)2022
Red Sky Ranch Metropolitan DistrictEdwards0.029 MGD (million gallons per day)2022
Prosperity Lane SDLamar0.029 MGD (million gallons per day)2022
Florence Marina State Park WWTPOmaha0.029 MGD (million gallons per day)2022
NORRIS STPNorris City0.029 MGD (million gallons per day)2022
CLEMONS STLClemons0.029 MGD (million gallons per day)2022
CLUTIER STLClutier0.029 MGD (million gallons per day)2022
LOCKRIDGE WWTPLockridge0.029 MGD (million gallons per day)2022
MELVINMelvin0.029 MGD (million gallons per day)2022
REASNOR STLReasnor0.029 MGD (million gallons per day)2022
THOR LAGOONThor0.029 MGD (million gallons per day)2022
RIDGEWAY WSLRidgeway0.029 MGD (million gallons per day)2022
BEVERLY WWTPBeverly0.029 MGD (million gallons per day)2022
JENNINGS WWTPJennings0.029 MGD (million gallons per day)2022
ELBING WWTPElbing0.029 MGD (million gallons per day)2022
St. Thomas WWTPSaint Thomas0.029 MGD (million gallons per day)2022
Wright County PWSD #1 WTPGrovespring0.029 MGD (million gallons per day)2022
DAVENPORT WASTEWATERDavenport0.029 MGD (million gallons per day)2022
Greene Co Clifton WWTP and SewersCedarville0.029 MGD (million gallons per day)2022
GREEN LAKE WWTPGreen Lake0.029 MGD (million gallons per day)2022
PORT OF EPES LAGOONEpes0.028 MGD (million gallons per day)2022
Nuiqsuit WWTPNuiqsut0.028 MGD (million gallons per day)2022
BRAYTON STLBrayton0.028 MGD (million gallons per day)2022
BRUNSVILLE WWTPBrunsville0.028 MGD (million gallons per day)2022
GRAFTON WWTPGrafton0.028 MGD (million gallons per day)2022
GRANVILLE WWTPGranville0.028 MGD (million gallons per day)2022
MESERVEY STLMeservey0.028 MGD (million gallons per day)2022
SEARSBORO STLSearsboro0.028 MGD (million gallons per day)2022
WHITTEN LAGOONWhitten0.028 MGD (million gallons per day)2022
WODEN LAGOONSWoden0.028 MGD (million gallons per day)2022
KEOMAH VILLAGE LAGOONOskaloosa0.028 MGD (million gallons per day)2022
ALDEN WWTPAlden0.028 MGD (million gallons per day)2022
LOUISVILLE WWTPWamego0.028 MGD (million gallons per day)2022
BARTLETT WWTPBartlett0.028 MGD (million gallons per day)2022
UTICA WWTPUtica0.028 MGD (million gallons per day)2022
Lost Ridge WWTPAlexandria0.028 MGD (million gallons per day)2022
GARY WWTPGary0.028 MGD (million gallons per day)2022
LUCAN WWTPLucan0.028 MGD (million gallons per day)2022
Amazonia WWTPAmazonia0.028 MGD (million gallons per day)2022
Amsterdam WWTPAmsterdam0.028 MGD (million gallons per day)2022
Normac Sewer DistrictCamdenton0.028 MGD (million gallons per day)2022
Hunnewell WWTPHunnewell0.028 MGD (million gallons per day)2022
BLUE SPRINGS WWTPBlue Springs0.028 MGD (million gallons per day)2022
LANCASTER CO. SID NO. 5 (CHENEY)Lincoln0.028 MGD (million gallons per day)2022
Carroll County Home WWTFOssipee0.028 MGD (million gallons per day)2022
Beekman (T) Dover Ridge Estates WWTPPoughquag0.028 MGD (million gallons per day)2022
Hocking Co Rockbridge WWTPRockbridge0.028 MGD (million gallons per day)2022
Trumbull Co Fox Den WWTPWarren0.028 MGD (million gallons per day)2022
Stark Co Skyland Hills MHP WWTPMinerva0.028 MGD (million gallons per day)2022
ELKTON STPElkton0.028 MGD (million gallons per day)2022
Marathon WWTPMarathon0.028 MGD (million gallons per day)2022
ClayHuntsville0.028 MGD (million gallons per day)2022
SAND FORK WWTPSand Fork0.028 MGD (million gallons per day)2022
BLENKER SHERRY SD - WWTPMilladore0.028 MGD (million gallons per day)2022
Lower Kalskag LagoonLower Kalskag0.027 MGD (million gallons per day)2022
Cheraw, Town ofCheraw0.027 MGD (million gallons per day)2022
Silver Plume, Town ofSilver Plume0.027 MGD (million gallons per day)2022
Cedar Hills WWTFOcala0.027 MGD (million gallons per day)2022
The Oaks at Turin WPCP (Coweta County)Turin0.027 MGD (million gallons per day)2022
SHUMWAY WASTE TREATMENT PShumway0.027 MGD (million gallons per day)2022
DU BOIS STPDu Bois0.027 MGD (million gallons per day)2022
LINDEN WWTPLinden0.027 MGD (million gallons per day)2022
MANTER WWTPManter0.027 MGD (million gallons per day)2022
WINDOM WWTPWindom0.027 MGD (million gallons per day)2022
TAMPA WWTPTampa0.027 MGD (million gallons per day)2022
NORCATUR WWTPNorcatur0.027 MGD (million gallons per day)2022
DEARING WWTPDearing0.027 MGD (million gallons per day)2022
CASSODAY WWTPCassoday0.027 MGD (million gallons per day)2022
CRELLIN WWTPOakland0.027 MGD (million gallons per day)2022
WALTHAM WWTPWaltham0.027 MGD (million gallons per day)2022
Harrisburg WWTPHarrisburg0.027 MGD (million gallons per day)2022
Bronaugh WWTPBronaugh0.027 MGD (million gallons per day)2022
CODY WWTPCody0.027 MGD (million gallons per day)2022
FARNAM WWTPFarnam0.027 MGD (million gallons per day)2022
CHAMBERS WWTPChambers0.027 MGD (million gallons per day)2022
Carmel (T) SD #5 STP - HillsdaleMahopac0.027 MGD (million gallons per day)2022
Otto (T) WWTP & SewersOtto0.027 MGD (million gallons per day)2022
INDIAHOMA EAST WWTIndiahoma0.027 MGD (million gallons per day)2022
MITCHELL STPMitchell0.027 MGD (million gallons per day)2022
Shepherd's Glen WWTPWylie0.027 MGD (million gallons per day)2022
Wadworth WWTPBay City0.027 MGD (million gallons per day)2022
EXELAND STPExeland0.027 MGD (million gallons per day)2022
FRIESLAND WWTPFriesland0.027 MGD (million gallons per day)2022
Cascade Shores WWTPNevada City0.026 MGD (million gallons per day)2022
SUGAR CITY WWTPSugar City0.026 MGD (million gallons per day)2022
Newton County Board of Education WSA Alcovy High School WPCP LASCovington0.026 MGD (million gallons per day)2022
University of Georgia / Marine Institute Sapelo IslandDarien0.026 MGD (million gallons per day)2022
Blalock Lakes WPCP (Coweta County)Newnan0.026 MGD (million gallons per day)2022
BRADDYVILLE WWTPBraddyville0.026 MGD (million gallons per day)2022
BRIDGEWATER STLBridgewater0.026 MGD (million gallons per day)2022

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.