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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
ABILENE WWTPAbilene1.3 MGD (million gallons per day)2022
Lakeshore Subdivision SD #1Monroe1.3 MGD (million gallons per day)2022
AMITE CITY STPAmite1.3 MGD (million gallons per day)2022
YARMOUTH WW T PYarmouth1.3 MGD (million gallons per day)2022
Sturbridge Sewerage Collection System and WWTFSturbridge1.3 MGD (million gallons per day)2022
Salisbury Sewerage Collection System and WWTFSalisbury1.3 MGD (million gallons per day)2022
WIXOM STPWixom1.3 MGD (million gallons per day)2022
PLAINWELL STPPlainwell1.3 MGD (million gallons per day)2022
DELANO WWTPDelano1.3 MGD (million gallons per day)2022
Troy WWTPTroy1.3 MGD (million gallons per day)2022
Oak Grove WWTPOak Grove1.3 MGD (million gallons per day)2022
Lincoln WWTFLincoln1.3 MGD (million gallons per day)2022
Newport WWTFNewport1.3 MGD (million gallons per day)2022
Carneys Point Township CS /STPPenns Grove1.3 MGD (million gallons per day)2022
Truth or Consequences STPTruth Or Consequences1.3 MGD (million gallons per day)2022
Riverhead (T) STP & SewersRiverhead1.3 MGD (million gallons per day)2022
Chittenango (V) STPChittenango1.3 MGD (million gallons per day)2022
Waterloo (V) WWTP & Collection SystemWaterloo1.3 MGD (million gallons per day)2022
ROBBINS WWTPRobbins1.3 MGD (million gallons per day)2022
Barnesville WWTP & Sewer SystemBarnesville1.3 MGD (million gallons per day)2022
Trumbull Co Brookfield SD 1 & 2Masury1.3 MGD (million gallons per day)2022
GUYMON UA NORTH WWTGuymon1.3 MGD (million gallons per day)2022
BROOKINGS WWTPBrookings1.3 MGD (million gallons per day)2022
MOUNT JOY BORO STPMount Joy1.3 MGD (million gallons per day)2022
NAZARETH BORO STPNazareth1.3 MGD (million gallons per day)2022
DUBOIS CITY STPDu Bois1.3 MGD (million gallons per day)2022
ROGERSVILLE STPRogersville1.3 MGD (million gallons per day)2022
Lindale Northside WWTPLindale1.3 MGD (million gallons per day)2022
Canton WWTPCanton1.3 MGD (million gallons per day)2022
Nottingham WWTPHouston1.3 MGD (million gallons per day)2022
Magnolia WWTPMagnolia1.3 MGD (million gallons per day)2022
Fallbrook UD WWTPHouston1.3 MGD (million gallons per day)2022
Langham Creek WWTPHouston1.3 MGD (million gallons per day)2022
Camden Park WWTPHouston1.3 MGD (million gallons per day)2022
Porter WWTPPorter1.3 MGD (million gallons per day)2022
Shenandoah WWTPConroe1.3 MGD (million gallons per day)2022
Hunter's Glen WWTP - Blue Ridge MUDBlue Ridge1.3 MGD (million gallons per day)2022
Huntwick Forest WWTPHouston1.3 MGD (million gallons per day)2022
Duvall WWTPDuvall1.3 MGD (million gallons per day)2022
OAK HILL - MINDEN ROAD WWTPCharleston1.3 MGD (million gallons per day)2022
GREENBRIER CO PSD NO. 2 WWTPRainelle1.3 MGD (million gallons per day)2022
TWIN LAKES WWTPTwin Lakes1.3 MGD (million gallons per day)2022
Ada WWTP & Sewer SystemAda1.29 MGD (million gallons per day)2022
KIEL STPKiel1.29 MGD (million gallons per day)2022
JORDAN WWTPJordan1.289 MGD (million gallons per day)2022
Blytheville - South WWTPBlytheville1.27 MGD (million gallons per day)2022
Rosamond WWTFRosamond1.27 MGD (million gallons per day)2022
MURPHYSBORO, CITY OFMurphysboro1.27 MGD (million gallons per day)2022
Livingston (Co) Conesus Lake SD Lakeville WWTPLakeville1.27 MGD (million gallons per day)2022
OCEAN ISLE BEACH WWTPOcean Isle Beach1.268 MGD (million gallons per day)2022
ELBURN WWTPElburn1.266 MGD (million gallons per day)2022
PRINCESS ANNE WWTPPrincess Anne1.26 MGD (million gallons per day)2022
COLUMBUS WWTPColumbus1.26 MGD (million gallons per day)2022
Jaffrey WWTFJaffrey1.258 MGD (million gallons per day)2022
MOULTON WWTPMoulton1.25 MGD (million gallons per day)2022
Walnut Ridge WWTPWalnut Ridge1.25 MGD (million gallons per day)2022
EARLIMART WWTFEarlimart1.25 MGD (million gallons per day)2022
ESCALON WWTFEscalon1.25 MGD (million gallons per day)2022
NEWMAN WWTFNewman1.25 MGD (million gallons per day)2022
NEPTUNE BEACH STPNeptune Beach1.25 MGD (million gallons per day)2022
Mount Dora WWTF #2Mount Dora1.25 MGD (million gallons per day)2022
PERRY STPPerry1.25 MGD (million gallons per day)2022
Middle Oconee WPCP (Jackson County)Jefferson1.25 MGD (million gallons per day)2022
Rockdale County Almand Branch WPCPConyers1.25 MGD (million gallons per day)2022
NashvilleNashville1.25 MGD (million gallons per day)2022
Newton County Little River WRFCovington1.25 MGD (million gallons per day)2022
Shakerag WRFSuwanee1.25 MGD (million gallons per day)2022
WILMINGTON SWG TRMT PLANTWilmington1.25 MGD (million gallons per day)2022
FOX RIVER GROVE STPFox River Grove1.25 MGD (million gallons per day)2022
NORTH MANCHESTER WWTPNorth Manchester1.25 MGD (million gallons per day)2022
ANAMOSA WWTPAnamosa1.25 MGD (million gallons per day)2022
CASCADE WWTPCascade1.25 MGD (million gallons per day)2022
MONTEZUMA WWTPMontezuma1.25 MGD (million gallons per day)2022
SPRING HILL WWTP #2Spring Hill1.25 MGD (million gallons per day)2022
MSD - OCEA South Oldham Regional WWTPCrestwood1.25 MGD (million gallons per day)2022
West St. Tammany Parish WWTP ConsolidationMadisonville1.25 MGD (million gallons per day)2022
DONALDSONVILLE STPDonaldsonville1.25 MGD (million gallons per day)2022
Pittsfield WWTFPittsfield1.25 MGD (million gallons per day)2022
North Branch WWTPCumberland1.25 MGD (million gallons per day)2022
Waynesville WWTPWaynesville1.25 MGD (million gallons per day)2022
Wanaque Valley RSA - CS/STPWanaque1.25 MGD (million gallons per day)2022
Evesham Township MUA - Woodstream STP/CSMarlton1.25 MGD (million gallons per day)2022
Suffolk (Co) SCSD #14 Parkland STPHolbrook1.25 MGD (million gallons per day)2022
Lloyd (T) STP and SewersHighland1.25 MGD (million gallons per day)2022
Coxsackie (V) WWTP & Collection SystemCoxsackie1.25 MGD (million gallons per day)2022
WELDON WWTPWeldon1.25 MGD (million gallons per day)2022
Newcomerstown WWTP & SewersNewcomerstown1.25 MGD (million gallons per day)2022
VENETA STPVeneta1.25 MGD (million gallons per day)2022
SPRING TOWNSHIP STPReading1.25 MGD (million gallons per day)2022
EAST GREENWICH STPEast Greenwich1.25 MGD (million gallons per day)2022
Presidio WWTPPresidio1.25 MGD (million gallons per day)2022
La Feria WWTPLa Feria1.25 MGD (million gallons per day)2022
BROWNFIELD STPBrownfield1.25 MGD (million gallons per day)2022
Bowie WWTPBowie1.25 MGD (million gallons per day)2022
Settler's Village WWTPHouston1.25 MGD (million gallons per day)2022
Bartlet Bay WWTFSouth Burlington1.25 MGD (million gallons per day)2022
HOLSTON REGIONAL WWTP & COLL SYSWeber City1.25 MGD (million gallons per day)2022
FT CHISWELL STP & COLL. SYS.Max Meadows1.25 MGD (million gallons per day)2022
HILLSVILLE REGIONAL WWTPHillsville1.25 MGD (million gallons per day)2022
WELLSBURG WWTPWellsburg1.25 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.