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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
Garrettsville WWTP & Sewer SystemGarrettsville0.5 MGD (million gallons per day)2022
Gibsonburg WWTP & Sewer SystemGibsonburg0.5 MGD (million gallons per day)2022
Jeffersonville WWTP & Sewer SystemJeffersonville0.5 MGD (million gallons per day)2022
Lynchburg WWTP & Sewer SystemLynchburg0.5 MGD (million gallons per day)2022
McConnelsville WWTP & Sewer SystemMcconnelsville0.5 MGD (million gallons per day)2022
Mount Sterling WWTP & Sewer SystemMount Sterling0.5 MGD (million gallons per day)2022
Mantua WWTP & Collection SystemMantua0.5 MGD (million gallons per day)2022
Put-in-Bay WWTP & Sewer SystemPut In Bay0.5 MGD (million gallons per day)2022
Saint Paris WWTP & Sewer SystemSaint Paris0.5 MGD (million gallons per day)2022
Seville WWTP & Sewer SystemSeville0.5 MGD (million gallons per day)2022
South Bloomfield WWTP & SewersAshville0.5 MGD (million gallons per day)2022
Williamsburg WWTP & Sewer SystemWilliamsburg0.5 MGD (million gallons per day)2022
STROUD UA SOUTH WWTStroud0.5 MGD (million gallons per day)2022
MANNFORD PWA MAIN WWTMannford0.5 MGD (million gallons per day)2022
WATONGA WWTWatonga0.5 MGD (million gallons per day)2022
HEALDTON WWTHealdton0.5 MGD (million gallons per day)2022
WEWOKA WWTWewoka0.5 MGD (million gallons per day)2022
WAGONER CO. #4 WWTBroken Arrow0.5 MGD (million gallons per day)2022
CANYONVILLE STPCanyonville0.5 MGD (million gallons per day)2022
GARIBALDI STPGaribaldi0.5 MGD (million gallons per day)2022
LAKESIDE STPLakeside0.5 MGD (million gallons per day)2022
MADRAS NWWTPMadras0.5 MGD (million gallons per day)2022
RAINIER STPRainier0.5 MGD (million gallons per day)2022
ROCKAWAY BEACH STPRockaway Beach0.5 MGD (million gallons per day)2022
WEST BRANCH SEW AUTH STPNorthern Cambria0.5 MGD (million gallons per day)2022
PETERS TWP - DONALDSONS XROADS STPCanonsburg0.5 MGD (million gallons per day)2022
DANIEL ISLAND WWTPCharleston0.5 MGD (million gallons per day)2022
Bartlett WWTP #2Brunswick0.5 MGD (million gallons per day)2022
BAXTER STPBaxter0.5 MGD (million gallons per day)2022
CAMDEN HCR LAGOONCamden0.5 MGD (million gallons per day)2022
Gainesboro STPGainesboro0.5 MGD (million gallons per day)2022
Monteagle STP #3Monteagle0.5 MGD (million gallons per day)2022
WHITE BLUFF WWTPWhite Bluff0.5 MGD (million gallons per day)2022
GBRA - Sunfield WWTP/WRFBuda0.5 MGD (million gallons per day)2022
New 1.0 MGD Willow Park WWTPWeatherford0.5 MGD (million gallons per day)2022
Flintrock WWTPAustin0.5 MGD (million gallons per day)2022
Smithville WWTPSmithville0.5 MGD (million gallons per day)2022
Floydada WWTPFloydada0.5 MGD (million gallons per day)2022
Ozona Main WWTPOzona0.5 MGD (million gallons per day)2022
Port Isabel WWTPPort Isabel0.5 MGD (million gallons per day)2022
Wharton WWTP #2Wharton0.5 MGD (million gallons per day)2022
Dessau WWTPAustin0.5 MGD (million gallons per day)2022
Mims Creek WWTPFairfield0.5 MGD (million gallons per day)2022
Jarrell WWTPJarrell0.5 MGD (million gallons per day)2022
Anna WWTPAnna0.5 MGD (million gallons per day)2022
Whitesboro WWTPWhitesboro0.5 MGD (million gallons per day)2022
ROYSE CITY STPRoyse City0.5 MGD (million gallons per day)2022
New Boston - Telford Unit WWTPNew Boston0.5 MGD (million gallons per day)2022
Waskom WWTPWaskom0.5 MGD (million gallons per day)2022
Chandler WWTPChandler0.5 MGD (million gallons per day)2022
Pinehurst WWTPPinehurst0.5 MGD (million gallons per day)2022
City of Crockett WWTP #2 (Southside)Crockett0.5 MGD (million gallons per day)2022
Terramar WWTPGalveston0.5 MGD (million gallons per day)2022
Bentwater WWTPMontgomery0.5 MGD (million gallons per day)2022
Waller WWTPWaller0.5 MGD (million gallons per day)2022
Indian Shores WWTPHouston0.5 MGD (million gallons per day)2022
Woodgate WWTPHouston0.5 MGD (million gallons per day)2022
West Harris Co MUD # 7 WWTPKaty0.5 MGD (million gallons per day)2022
West Park WWTPHouston0.5 MGD (million gallons per day)2022
Harris Co MUD #36 WWTPHouston0.5 MGD (million gallons per day)2022
Arcola WWTPGalveston0.5 MGD (million gallons per day)2022
Oyster Creek Main WWTPFreeport0.5 MGD (million gallons per day)2022
Danbury WWTPDanbury0.5 MGD (million gallons per day)2022
Quail Green WWTPMissouri City0.5 MGD (million gallons per day)2022
Londonberry WWTPHouston0.5 MGD (million gallons per day)2022
Inverness Forest WWTPHouston0.5 MGD (million gallons per day)2022
Memorial Hills WWTPHouston0.5 MGD (million gallons per day)2022
Westwind WWTPHouston0.5 MGD (million gallons per day)2022
South WWTP - LulingLuling0.5 MGD (million gallons per day)2022
Bracketville WWTPBrackettville0.5 MGD (million gallons per day)2022
Slick Rock Creek WWTPMarble Falls0.5 MGD (million gallons per day)2022
West Harris Co MUD # 11 WWTPHouston0.5 MGD (million gallons per day)2022
RICHMONDRichmond0.5 MGD (million gallons per day)2022
WELLSVILLEWellsville0.5 MGD (million gallons per day)2022
GREEN RIVERGreen River0.5 MGD (million gallons per day)2022
ENTERPRISEEnterprise0.5 MGD (million gallons per day)2022
SPRINGDALESpringdale0.5 MGD (million gallons per day)2022
GUNNISON-CENTERFIELD LAGOONGunnison0.5 MGD (million gallons per day)2022
Fair Haven WWTFFair Haven0.5 MGD (million gallons per day)2022
Poultney WWTFPoultney0.5 MGD (million gallons per day)2022
POUND WWTP & Collection SystemPound0.5 MGD (million gallons per day)2022
CREWE WWTPCrewe0.5 MGD (million gallons per day)2022
KEYSVILLE STPKeysville0.5 MGD (million gallons per day)2022
KILMARNOCK STPKilmarnock0.5 MGD (million gallons per day)2022
West Central Wash. Co. WWTP & CSBristol0.5 MGD (million gallons per day)2022
WEYERS CAVE STPWeyers Cave0.5 MGD (million gallons per day)2022
ST. PAUL WWTP & Collection SystemSaint Paul0.5 MGD (million gallons per day)2022
GLASGOW STPGlasgow0.5 MGD (million gallons per day)2022
LOWMOOR STPLow Moor0.5 MGD (million gallons per day)2022
Northern Tazewell Co. WWTPPocahontas0.5 MGD (million gallons per day)2022
OROVILLE POTWOroville0.5 MGD (million gallons per day)2022
BENTON CITY, S/T FAC.Benton City0.5 MGD (million gallons per day)2022
WINSLOW TREATMENTBainbridge Island0.5 MGD (million gallons per day)2022
MONTGOMERY WWTPMontgomery0.5 MGD (million gallons per day)2022
RIPLEY WWTPRipley0.5 MGD (million gallons per day)2022
CHARLES TOWN - TUSCAWILLA WWTPCharles Town0.5 MGD (million gallons per day)2022
MARMET WWTPCharleston0.5 MGD (million gallons per day)2022
MARSHALL CO SD - SOUTHWEST WWTPMoundsville0.5 MGD (million gallons per day)2022
ATHENS WWTPAthens0.5 MGD (million gallons per day)2022
RICHWOOD WWTPRichwood0.5 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.