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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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All countries

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
Blanket WWTPBlanket0.05 MGD (million gallons per day)2022
Richland Springs WWTPRichland Springs0.05 MGD (million gallons per day)2022
Fair Oaks Ranch WWTPBoerne0.05 MGD (million gallons per day)2022
Chula Vista WWTPCrystal City0.05 MGD (million gallons per day)2022
ELMOElmo0.05 MGD (million gallons per day)2022
CANNONVILLEBryce0.05 MGD (million gallons per day)2022
Jacksonville Village WWTFJacksonville0.05 MGD (million gallons per day)2022
South Woodstock WWTFSouth Woodstock0.05 MGD (million gallons per day)2022
Cabot WWTFCabot0.05 MGD (million gallons per day)2022
STONY CREEK STPStony Creek0.05 MGD (million gallons per day)2022
SPRINGDALE WWTPSpringdale0.05 MGD (million gallons per day)2022
TAMOSHAN WWTPOlympia0.05 MGD (million gallons per day)2022
MONROE CO SEWERBallard0.05 MGD (million gallons per day)2022
BERK CO PSSD - MARLOWE WWTPFalling Waters0.05 MGD (million gallons per day)2022
BERK CO PSSD - HONEYWOOD WWTPFalling Waters0.05 MGD (million gallons per day)2022
MNTN TOP PSD - BAYARD WWTPBayard0.05 MGD (million gallons per day)2022
COTTAGEVILLE PSD WWTPMillwood0.05 MGD (million gallons per day)2022
MARSHALL CO SD - WASHINGTON WWTPGlen Dale0.05 MGD (million gallons per day)2022
MNTN TOP PSD - ELK GARDEN WWTPGormania0.05 MGD (million gallons per day)2022
KERMIT WWTPKermit0.05 MGD (million gallons per day)2022
BLACKSVILLE WWTPBlacksville0.05 MGD (million gallons per day)2022
BRADSHAW WWTPBradshaw0.05 MGD (million gallons per day)2022
BIRCH RIVER PSD WWTPBirch River0.05 MGD (million gallons per day)2022
HARMAN WWTPHarman0.05 MGD (million gallons per day)2022
EASTMAN WWTPEastman0.05 MGD (million gallons per day)2022
LAKEWOOD SD #1 - STPLakewood0.05 MGD (million gallons per day)2022
MILLADORE STPMilladore0.05 MGD (million gallons per day)2022
NICHOLS WWTPNichols0.05 MGD (million gallons per day)2022
PIGEON FALLS WWTPPigeon Falls0.05 MGD (million gallons per day)2022
PRAIRIE FARM STPPrairie Farm0.05 MGD (million gallons per day)2022
RADISSON STPRadisson0.05 MGD (million gallons per day)2022
WHEELER STPWheeler0.05 MGD (million gallons per day)2022
Lebanon SD #2 - WWTPWatertown0.05 MGD (million gallons per day)2022
LK WAPOGASSET-BEAR TRAP LK - WWTPAmery0.05 MGD (million gallons per day)2022
FOREST JUNCTION SD WWTPBrillion0.05 MGD (million gallons per day)2022
ROCK RIVER LAGOONRock River0.05 MGD (million gallons per day)2022
COKEVILLE WWTPCokeville0.05 MGD (million gallons per day)2022
SUPERIOR LAGOONSuperior0.05 MGD (million gallons per day)2022
DEAVER LAGOONDeaver0.05 MGD (million gallons per day)2022
FT LARAMIE LAGOONFort Laramie0.05 MGD (million gallons per day)2022
MEETEETSE LAGOONMeeteetse0.05 MGD (million gallons per day)2022
DIXON LAGOONDixon0.05 MGD (million gallons per day)2022
RELIANCE LAGOONReliance0.05 MGD (million gallons per day)2022
Arkansas City WWTPArkansas City0.049 MGD (million gallons per day)2022
Lafe WWTPLafe0.049 MGD (million gallons per day)2022
Felsenthal WWTPHuttig0.049 MGD (million gallons per day)2022
EDDYVILLE. STPEddyville0.049 MGD (million gallons per day)2022
STEAMBOAT ROCK WASTE WATERSteamboat Rock0.049 MGD (million gallons per day)2022
MILTONVALE WWTPMiltonvale0.049 MGD (million gallons per day)2022
South 641 WD (HAZEL)Hazel0.049 MGD (million gallons per day)2022
DANFORTH WWTFDanforth0.049 MGD (million gallons per day)2022
WYKOFF WWTPWykoff0.049 MGD (million gallons per day)2022
LOWRY WWTPLowry0.049 MGD (million gallons per day)2022
FORESTON WWTPForeston0.049 MGD (million gallons per day)2022
Stella LagoonStella0.049 MGD (million gallons per day)2022
Altamont-Winston WWTPAltamont0.049 MGD (million gallons per day)2022
St. Elizabeth WWTPSaint Elizabeth0.049 MGD (million gallons per day)2022
Bunceton WWTPBunceton0.049 MGD (million gallons per day)2022
Windsor Place WWTPBoonville0.049 MGD (million gallons per day)2022
Remsen (V) STP & Collection SystemRemsen0.049 MGD (million gallons per day)2022
Portage Co Rivermoor Estates WWTPAurora0.049 MGD (million gallons per day)2022
Portage Co Countryside Estates MHP WWTPRavenna0.049 MGD (million gallons per day)2022
LEEDEY WWTLeedey0.049 MGD (million gallons per day)2022
MORRISON NORTH WWTMorrison0.049 MGD (million gallons per day)2022
MORRISON SOUTH WWTMorrison0.049 MGD (million gallons per day)2022
Cold Brook Fire District No. 1 WWTFWilmington0.049 MGD (million gallons per day)2022
LAKE TOMAHAWK SD #1 STPLake Tomahawk0.049 MGD (million gallons per day)2022
Mountain Top SID No. 66Hot Springs Village0.048 MGD (million gallons per day)2022
Cash WWTPCash0.048 MGD (million gallons per day)2022
Lexa WWTPLexa0.048 MGD (million gallons per day)2022
Tri - City WWTPO Kean0.048 MGD (million gallons per day)2022
Cadwell WPCPCadwell0.048 MGD (million gallons per day)2022
Concord North PondConcord0.048 MGD (million gallons per day)2022
BANCROFT SEWAGE LAGOONBancroft0.048 MGD (million gallons per day)2022
BELLE RIVE WWTPBelle Rive0.048 MGD (million gallons per day)2022
MONTROSE STPMontrose0.048 MGD (million gallons per day)2022
NEW GRAND CHAIN STPGrand Chain0.048 MGD (million gallons per day)2022
ARTHUR STLArthur0.048 MGD (million gallons per day)2022
BLAKESBURG WWTPBlakesburg0.048 MGD (million gallons per day)2022
DEFIANCE STLDefiance0.048 MGD (million gallons per day)2022
GREELEY STLGreeley0.048 MGD (million gallons per day)2022
SOLDIER, WWTPSoldier0.048 MGD (million gallons per day)2022
BEATTIE WWTPBeattie0.048 MGD (million gallons per day)2022
GORHAM WWTPGorham0.048 MGD (million gallons per day)2022
BUFFALO WWTPBuffalo0.048 MGD (million gallons per day)2022
Bluefin Bay on Lake Superior WWTPTofte0.048 MGD (million gallons per day)2022
Everton WWTPEverton0.048 MGD (million gallons per day)2022
Peru (T) Valcour WWTPPeru0.048 MGD (million gallons per day)2022
Williams Co Norlick Place WWTPBryan0.048 MGD (million gallons per day)2022
Florida WWTP and Sewer SystemNapoleon0.048 MGD (million gallons per day)2022
STRINGTOWN PWA WWTStringtown0.048 MGD (million gallons per day)2022
Conroe Bay WWTPWillis0.048 MGD (million gallons per day)2022
Lefors WWTPLefors0.048 MGD (million gallons per day)2022
Ricardo WWTPKingsville0.048 MGD (million gallons per day)2022
Chappell Hill STPChappell Hill0.048 MGD (million gallons per day)2022
Dodd City WWTPDodd City0.048 MGD (million gallons per day)2022
SOUTH PRAIRIE STPSouth Prairie0.048 MGD (million gallons per day)2022
PAGE KINCAID PSD - PAGE WWTPKincaid0.048 MGD (million gallons per day)2022
FLEMINGTON WWTPFlemington0.048 MGD (million gallons per day)2022
CLYMAN WWTPClyman0.048 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.