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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
Smyer STPSmyer0.08 MGD (million gallons per day)2022
Lott WWTPLott0.08 MGD (million gallons per day)2022
Gustine WWTPGustine0.08 MGD (million gallons per day)2022
Streetman WWTPStreetman0.08 MGD (million gallons per day)2022
GunterGunter0.08 MGD (million gallons per day)2022
ALBA STPAlba0.08 MGD (million gallons per day)2022
Bloomburg WWTPBloomburg0.08 MGD (million gallons per day)2022
Murchison WWTPMurchison0.08 MGD (million gallons per day)2022
Orchard WWTPOrchard0.08 MGD (million gallons per day)2022
Kendleton WWTPKendleton0.08 MGD (million gallons per day)2022
Oak Manor WWTPAlvin0.08 MGD (million gallons per day)2022
Devers WWTPDevers0.08 MGD (million gallons per day)2022
Texas National MUD WWTPWillis0.08 MGD (million gallons per day)2022
D'Hanis WWTPD Hanis0.08 MGD (million gallons per day)2022
Miles WWTPMiles0.08 MGD (million gallons per day)2022
Fairfax WWTFFairfax0.08 MGD (million gallons per day)2022
Jeffersonville WWTFJeffersonville0.08 MGD (million gallons per day)2022
DRAKES BRANCH STPDrakes Branch0.08 MGD (million gallons per day)2022
SCOTTSVILLE STPScottsville0.08 MGD (million gallons per day)2022
STAUNTON RIVER LAGOONBrookneal0.08 MGD (million gallons per day)2022
MADISON REGIONAL STPMadison0.08 MGD (million gallons per day)2022
HAMILTON STPHamilton0.08 MGD (million gallons per day)2022
Lewis Co SD #6 WWTPMossyrock0.08 MGD (million gallons per day)2022
CLALLAM BAY STPClallam Bay0.08 MGD (million gallons per day)2022
LEWIS CO. STP #2Onalaska0.08 MGD (million gallons per day)2022
CASS WWTPCass0.08 MGD (million gallons per day)2022
ABRAMS SD #1 STPAbrams0.08 MGD (million gallons per day)2022
FRANCIS CREEK WWTPManitowoc0.08 MGD (million gallons per day)2022
WAUSAUKEE WWTPWausaukee0.08 MGD (million gallons per day)2022
WAUZEKA WWTPWauzeka0.08 MGD (million gallons per day)2022
WINTER STPWinter0.08 MGD (million gallons per day)2022
GOODMAN SD #1 WWTPGoodman0.08 MGD (million gallons per day)2022
FRANCISCO WWTPFrancisco0.079 MGD (million gallons per day)2022
LATIMER-COULTER WWTPLatimer0.079 MGD (million gallons per day)2022
ANDREW STPAndrew0.079 MGD (million gallons per day)2022
AURORA STPAurora0.079 MGD (million gallons per day)2022
BIGGS SERVICE DISTRICT WW TREATMENTRufus0.079 MGD (million gallons per day)2022
ELMWOOD VILLAGE WWTPElmwood0.079 MGD (million gallons per day)2022
TAYLOR WWTPTaylor0.079 MGD (million gallons per day)2022
Plainview (Yell Co.) WWTPPlainview0.078 MGD (million gallons per day)2022
City of Tignall WCPCTignall0.078 MGD (million gallons per day)2022
Tignall WPCPTignall0.078 MGD (million gallons per day)2022
DUBOIS S/T FACILITYDubois0.078 MGD (million gallons per day)2022
Huckleberry Bay Sewage Treatmnt SysCoolin0.078 MGD (million gallons per day)2022
HARTSVILLE WWTPHartsville0.078 MGD (million gallons per day)2022
MOUNT HOPE WWTPMount Hope0.078 MGD (million gallons per day)2022
CENTRALIA WWTPCentralia0.078 MGD (million gallons per day)2022
BIGFORK WWTPBigfork0.078 MGD (million gallons per day)2022
PCSD No. 1 Northern Heights Estates WWTPWaynesville0.078 MGD (million gallons per day)2022
Mokane WWTPMokane0.078 MGD (million gallons per day)2022
Bland WWTPBland0.078 MGD (million gallons per day)2022
AMSTERDAM/CHURCHILL CTY W & S DIST.Manhattan0.078 MGD (million gallons per day)2022
PALMER WWTPPalmer0.078 MGD (million gallons per day)2022
HATLEY STPHatley0.078 MGD (million gallons per day)2022
LAKE NEBAGAMON STPBrule0.078 MGD (million gallons per day)2022
Poygan PoySippi SD #1 - WWTPWinneconne0.078 MGD (million gallons per day)2022
Butte des Morts Consol. SD - STPOshkosh0.078 MGD (million gallons per day)2022
SEVASTOPOL SD #1 STPSturgeon Bay0.078 MGD (million gallons per day)2022
Alpine SD WWTFAlpine0.077 MGD (million gallons per day)2022
EMERSON WWTPEmerson0.077 MGD (million gallons per day)2022
RINGSTED WWTPRingsted0.077 MGD (million gallons per day)2022
MOLINE WWTPMoline0.077 MGD (million gallons per day)2022
South Vienna WWTP & Sewer SystemSouth Vienna0.077 MGD (million gallons per day)2022
SHIDLER WWTShidler0.077 MGD (million gallons per day)2022
FALLS CITY STPFalls City0.077 MGD (million gallons per day)2022
EVANS PSD WWTPEvans0.077 MGD (million gallons per day)2022
MERRILLAN WWTPMerrillan0.077 MGD (million gallons per day)2022
FORESTVILLE STPForestville0.077 MGD (million gallons per day)2022
Point Hope WWTPPoint Hope0.076 MGD (million gallons per day)2022
Lake View (Phillips Co) WWTPLakeview0.076 MGD (million gallons per day)2022
Little Racoon RWDWaveland0.076 MGD (million gallons per day)2022
CHARLOTTE STLCharlotte0.076 MGD (million gallons per day)2022
THAYER WWTPThayer0.076 MGD (million gallons per day)2022
TANGIPAHOA PONDTangipahoa0.076 MGD (million gallons per day)2022
West Stockbridge Sewerage Collection System and WWTFWest Stockbridge0.076 MGD (million gallons per day)2022
Walnut Grove WWTPWalnut Grove0.076 MGD (million gallons per day)2022
Burlington Junction WWTPBurlington Junction0.076 MGD (million gallons per day)2022
Jamesport WWTPJamesport0.076 MGD (million gallons per day)2022
Tenmile-Pleasant Valley Sewer District WWTFHelena0.076 MGD (million gallons per day)2022
Caledonia WWTP & Sewer SystemCaledonia0.076 MGD (million gallons per day)2022
SHADY POINT PWA WWTShady Point0.076 MGD (million gallons per day)2022
COLCORD WWTColcord0.076 MGD (million gallons per day)2022
Lunenburg FD2 WWTFGilman0.076 MGD (million gallons per day)2022
BENEDUM AIRPORTBridgeport0.076 MGD (million gallons per day)2022
DALLAS STPDallas0.076 MGD (million gallons per day)2022
MERRIMAC STPMerrimac0.076 MGD (million gallons per day)2022
ROCK SPRINGS STPRock Springs0.076 MGD (million gallons per day)2022
AUTAUGAVILLE WWTPAutaugaville0.075 MGD (million gallons per day)2022
RUTLEDGE WASTEWATER LAGOONRutledge0.075 MGD (million gallons per day)2022
Mountain Village LagoonMountain Village0.075 MGD (million gallons per day)2022
Menifee WWTPMenifee0.075 MGD (million gallons per day)2022
Hickory Ridge WWTPHickory Ridge0.075 MGD (million gallons per day)2022
Cove WWTPCove0.075 MGD (million gallons per day)2022
Sulphur Rock WWTPSulphur Rock0.075 MGD (million gallons per day)2022
Ravenden WWTPRavenden0.075 MGD (million gallons per day)2022
Furlow Wastewater PFBLonoke0.075 MGD (million gallons per day)2022
Garland WWTPLewisville0.075 MGD (million gallons per day)2022
Oak Grove Heights WWTPOak Grove0.075 MGD (million gallons per day)2022
Strasburg SWDStrasburg0.075 MGD (million gallons per day)2022
BAILEY WWTPBailey0.075 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.