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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
Fayette Co Flakes Ford Estates WWTPWashington Court House0.014 MGD (million gallons per day)2022
Saxon Sanitary District - WWTPHurley0.014 MGD (million gallons per day)2022
Mount Vernon Country Club Metropolitan DistrictGolden0.013 MGD (million gallons per day)2022
Lake Tamerix Addition RSDColumbus0.013 MGD (million gallons per day)2022
Jackson Township RSDHartford City0.013 MGD (million gallons per day)2022
Watkins CDPWatkins0.013 MGD (million gallons per day)2022
CARPENTER SEPTICSCarpenter0.013 MGD (million gallons per day)2022
CHILLICOTHE WWTPChillicothe0.013 MGD (million gallons per day)2022
HARPER WWTPHarper0.013 MGD (million gallons per day)2022
ORCHARD LAGOONOrchard0.013 MGD (million gallons per day)2022
PROMISE CITY STLPromise City0.013 MGD (million gallons per day)2022
SPRAGUEVILLE STPSpragueville0.013 MGD (million gallons per day)2022
PLEVNA WWTPPlevna0.013 MGD (million gallons per day)2022
RL CO S D TERRA HTS WWTPManhattan0.013 MGD (million gallons per day)2022
LN CO SD (CENTERVILLE)Centerville0.013 MGD (million gallons per day)2022
STARK WWTPStark0.013 MGD (million gallons per day)2022
ROXBURY I D WWTPMcpherson0.013 MGD (million gallons per day)2022
HURON WWTPHaddam0.013 MGD (million gallons per day)2022
Humphreys WWTPHumphreys0.013 MGD (million gallons per day)2022
FORDYCE WWTPFordyce0.013 MGD (million gallons per day)2022
HORDVILLE WWTPHordville0.013 MGD (million gallons per day)2022
Beebe River WWTFCampton0.013 MGD (million gallons per day)2022
Wilna (T) WWTPCarthage0.013 MGD (million gallons per day)2022
Herrings (V) STPCarthage0.013 MGD (million gallons per day)2022
Shelby Co Fair Haven WWTPSidney0.013 MGD (million gallons per day)2022
Kirtland Shenandoah Estates WWTPWilloughby0.013 MGD (million gallons per day)2022
NWWSD Bairdstown AreaNorth Baltimore0.013 MGD (million gallons per day)2022
INDIAHOMA WEST WWTIndiahoma0.013 MGD (million gallons per day)2022
PITTSBURG CO RW&SD #19 WWTMcalester0.013 MGD (million gallons per day)2022
CAMELLIA PARK SANITARY DISTBrookings0.013 MGD (million gallons per day)2022
Parrottsville STPParrottsville0.013 MGD (million gallons per day)2022
Estelline WWTPEstelline0.013 MGD (million gallons per day)2022
La Ward WWTPLa Ward0.013 MGD (million gallons per day)2022
BERK CO PSSD - NORTHWINDS WWTPFalling Waters0.013 MGD (million gallons per day)2022
BERK CO PSSD - CORNERS AT ARDEN TPGerrardstown0.013 MGD (million gallons per day)2022
COWEN PSD - CAMP CEASAR WWTPCowen0.013 MGD (million gallons per day)2022
GLEN FLORA WWTPGlen Flora0.013 MGD (million gallons per day)2022
Emerald-Glenwood SD - STPGlenwood City0.013 MGD (million gallons per day)2022
Twin Hills LagoonTogiak0.012 MGD (million gallons per day)2022
Shishmaref LagoonSShishmaref0.012 MGD (million gallons per day)2022
Gilpin County School District RE-1Black Hawk0.012 MGD (million gallons per day)2022
Routt County/Hahn's PeakClark0.012 MGD (million gallons per day)2022
Fulda RSDFulda0.012 MGD (million gallons per day)2022
ANDOVER STLAndover0.012 MGD (million gallons per day)2022
CROMWELL LAGOONCromwell0.012 MGD (million gallons per day)2022
ROME STLRome0.012 MGD (million gallons per day)2022
ST MARYS WASTEWATERSaint Marys0.012 MGD (million gallons per day)2022
SHARPSBURG WASTEWATERSharpsburg0.012 MGD (million gallons per day)2022
WEBSTER RUSSWebster0.012 MGD (million gallons per day)2022
ZWINGLE STPZwingle0.012 MGD (million gallons per day)2022
HUDSON WWTPHudson0.012 MGD (million gallons per day)2022
SAWYER WWTPSawyer0.012 MGD (million gallons per day)2022
POWHATTAN WWTPPowhattan0.012 MGD (million gallons per day)2022
OLATHE (LAKESTONE ESTATES) WWTPOlathe0.012 MGD (million gallons per day)2022
DENTON WWTPDenton0.012 MGD (million gallons per day)2022
MN CO I D #3 (PILSEN) WWTPMarion0.012 MGD (million gallons per day)2022
HUNTER WWTPHunter0.012 MGD (million gallons per day)2022
LONGFORD WWTPLongford0.012 MGD (million gallons per day)2022
MG CO S D #4 WWTP HAV LAKEHavana0.012 MGD (million gallons per day)2022
FALUN I D WWTPSalina0.012 MGD (million gallons per day)2022
DK CO SD #1 WWTP (TALMAGE)Abilene0.012 MGD (million gallons per day)2022
DEGREGOIRE PARK TREATMENTBar Harbor0.012 MGD (million gallons per day)2022
Pass N Gas WWTFFulton0.012 MGD (million gallons per day)2022
Cedar Business Park WWTPLebanon0.012 MGD (million gallons per day)2022
RSD, Rockwood Valley Middle School WWTFGlencoe0.012 MGD (million gallons per day)2022
Truxton LagoonTruxton0.012 MGD (million gallons per day)2022
Arcadia WWTP - EastArcadia0.012 MGD (million gallons per day)2022
Hebgen Lake Estates County W&S DistWest Yellowstone0.012 MGD (million gallons per day)2022
FILLEY WWTPFilley0.012 MGD (million gallons per day)2022
STEINAUER WWTPSteinauer0.012 MGD (million gallons per day)2022
DIXON WWTPDixon0.012 MGD (million gallons per day)2022
Mountain City ElkoMountain City0.012 MGD (million gallons per day)2022
Tierra AmarillaTierra Amarilla0.012 MGD (million gallons per day)2022
Newburgh (T) Nob Hill STPNewburgh0.012 MGD (million gallons per day)2022
Blooming Grove (T) Glenwood Hills STPBlooming Grove0.012 MGD (million gallons per day)2022
Geauga Co Willow Hills WWTPChester0.012 MGD (million gallons per day)2022
Sewer District #11Hinckley0.012 MGD (million gallons per day)2022
Auglaize Co Arrowhead Estates WWTPUniopolis0.012 MGD (million gallons per day)2022
Trumbull Co Newton Falls #2 WWTPWarren0.012 MGD (million gallons per day)2022
Trumbull Co Warren #3 WWTPLeavittsburg0.012 MGD (million gallons per day)2022
DAVIS SOUTH (JOLLYVILLE)Davis0.012 MGD (million gallons per day)2022
WAMIC WATER AND SEWER AUTHORITYMaupin0.012 MGD (million gallons per day)2022
Roaring Springs WWTPRoaring Springs0.012 MGD (million gallons per day)2022
Rio Bravo WWTPLaredo0.012 MGD (million gallons per day)2022
Angus WWTPCorsicana0.012 MGD (million gallons per day)2022
AMONATE SEWERAGE SYSTEMNorth Tazewell0.012 MGD (million gallons per day)2022
MINGO CO PSD - EAST KERMIT WWTPNaugatuck0.012 MGD (million gallons per day)2022
CRYSTAL LAKE SD - STP (Barron)Comstock0.012 MGD (million gallons per day)2022
HARTVILLE WWTPHartville0.012 MGD (million gallons per day)2022
EDGERTON LAGOONMidwest0.012 MGD (million gallons per day)2022
REUBENS LSASReubens0.011 MGD (million gallons per day)2022
MAPLE RIVER JUNCTION STPCarroll0.011 MGD (million gallons per day)2022
OYENS LAGOONOyens0.011 MGD (million gallons per day)2022
ST ANTHONY WASTEWATERSaint Anthony0.011 MGD (million gallons per day)2022
SPRINGBROOK WWTPSpragueville0.011 MGD (million gallons per day)2022
UNIONVILLE WWTPUnionville0.011 MGD (million gallons per day)2022
LAKE SIDE VILLAGE I D WWTPOskaloosa0.011 MGD (million gallons per day)2022
CF CO S D #1 JACOBS CRK WWTPBurlington0.011 MGD (million gallons per day)2022
WOODSTON WWTPWoodston0.011 MGD (million gallons per day)2022
MG CO S D #5 WWTP SYCAMOREIndependence0.011 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.