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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Illinois

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766 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

766 results

CompareNameNative sizeYear
ST LIBORY STPSaint Libory0.09 MGD (million gallons per day)2022
SAN JOSE STPSan Jose0.09 MGD (million gallons per day)2022
HUTSONVILLE STPHutsonville0.09 MGD (million gallons per day)2022
KEYESPORT STWKeyesport0.09 MGD (million gallons per day)2022
ALBERS STPAlbers0.09 MGD (million gallons per day)2022
IRVINGTON WWTPIrvington0.09 MGD (million gallons per day)2022
PITTSBURG STPPittsburg0.09 MGD (million gallons per day)2022
ULLIN STPUllin0.089 MGD (million gallons per day)2022
TAYLOR SPRINGS STPTaylor Springs0.088 MGD (million gallons per day)2022
UrsaUrsa0.08 MGD (million gallons per day)2022
KARNAK WWTPKarnak0.08 MGD (million gallons per day)2022
TAMAROA LAGOONTamaroa0.08 MGD (million gallons per day)2022
DIETERICH STPDieterich0.08 MGD (million gallons per day)2022
VALIER SEWAGE TREATMENT PValier0.08 MGD (million gallons per day)2022
POTOMAC SEWAGE TREATMENTPotomac0.08 MGD (million gallons per day)2022
GERMAN VALLEY STPGerman Valley0.08 MGD (million gallons per day)2022
LENZBURG STPLenzburg0.08 MGD (million gallons per day)2022
CORDOVA STPCordova0.08 MGD (million gallons per day)2022
PERRY LAGOONPerry0.08 MGD (million gallons per day)2022
LA MOILLE STPLa Moille0.08 MGD (million gallons per day)2022
OHIO STPOhio0.08 MGD (million gallons per day)2022
SHIPMAN STPShipman0.08 MGD (million gallons per day)2022
DIX-KELL STPDix0.08 MGD (million gallons per day)2022
CISNE STPCisne0.08 MGD (million gallons per day)2022
TALLULA STPTallula0.08 MGD (million gallons per day)2022
RANKIN STPRankin0.08 MGD (million gallons per day)2022
THOMPSONVILLE STPThompsonville0.08 MGD (million gallons per day)2022
ALTONA STPAltona0.08 MGD (million gallons per day)2022
WILSONVILLE STPWilsonville0.08 MGD (million gallons per day)2022
FAIRVIEW STPFairview0.08 MGD (million gallons per day)2022
AVA STPAva0.08 MGD (million gallons per day)2022
GRAND TOWER STPGrand Tower0.08 MGD (million gallons per day)2022
DAVIS STPDavis0.08 MGD (million gallons per day)2022
PEARL CITY STPPearl City0.08 MGD (million gallons per day)2022
LONDON MILLS STPLondon Mills0.08 MGD (million gallons per day)2022
NEW CANTON STPNew Canton0.08 MGD (million gallons per day)2022
REYNOLDS STPReynolds0.08 MGD (million gallons per day)2022
Spring Grove Wastewater SystemSpring Grove0.075 MGD (million gallons per day)2022
Village of Table Grove WWTP/Coll. SysTable Grove0.075 MGD (million gallons per day)2022
DALTON CITY STPDalton City0.075 MGD (million gallons per day)2022
MEDORA STPMedora0.07 MGD (million gallons per day)2022
MULBERRY GROVE STPMulberry Grove0.07 MGD (million gallons per day)2022
SUMMERFIELD STPSummerfield0.07 MGD (million gallons per day)2022
ALHAMBRA STPAlhambra0.07 MGD (million gallons per day)2022
GOODFIELD WWTPGoodfield0.07 MGD (million gallons per day)2022
BUREAU JUNCTIONBureau0.07 MGD (million gallons per day)2022
GOLDEN STPGolden0.07 MGD (million gallons per day)2022
PATOKA STPPatoka0.07 MGD (million gallons per day)2022
BLUFORD STPBluford0.07 MGD (million gallons per day)2022
KAMPSVILLE STPKampsville0.07 MGD (million gallons per day)2022
FLAT ROCK STPFlat Rock0.07 MGD (million gallons per day)2022
OLMSTED STPOlmsted0.07 MGD (million gallons per day)2022
COWDEN STPCowden0.07 MGD (million gallons per day)2022
HERRICK STPHerrick0.07 MGD (million gallons per day)2022
FITHIAN STPFithian0.07 MGD (million gallons per day)2022
SORENTO STPSorento0.07 MGD (million gallons per day)2022
IRVING STPIrving0.07 MGD (million gallons per day)2022
HAMMOND STPHammond0.07 MGD (million gallons per day)2022
GORHAM STPGorham0.07 MGD (million gallons per day)2022
INDUSTRY WWTPIndustry0.07 MGD (million gallons per day)2022
BARDOLPH STWBardolph0.07 MGD (million gallons per day)2022
HUMBOLDT STPHumboldt0.07 MGD (million gallons per day)2022
NEW HAVEN STPNew Haven0.07 MGD (million gallons per day)2022
HOYLETON STPHoyleton0.07 MGD (million gallons per day)2022
NEBO STPNebo0.069 MGD (million gallons per day)2022
HILLSDALE STPHillsdale0.065 MGD (million gallons per day)2022
New Boston WWTPNew Boston0.065 MGD (million gallons per day)2022
JOPPA WWTPJoppa0.065 MGD (million gallons per day)2022
West Liberty & Dundas STPDundas0.063 MGD (million gallons per day)2022
East Cape Girardeau, VillageMc Clure0.06 MGD (million gallons per day)2022
THEBES STPThebes0.06 MGD (million gallons per day)2022
THAYER SEWER & STPThayer0.06 MGD (million gallons per day)2022
EDGEWOOD STPEdgewood0.06 MGD (million gallons per day)2022
JOY STPJoy0.06 MGD (million gallons per day)2022
SIGEL STPSigel0.06 MGD (million gallons per day)2022
STRASBURG STPStrasburg0.06 MGD (million gallons per day)2022
ENFIELD EAST LAGOONEnfield0.06 MGD (million gallons per day)2022
CUTLER STPCutler0.06 MGD (million gallons per day)2022
APPLE RIVER STPApple River0.06 MGD (million gallons per day)2022
BELLMONT STPBellmont0.06 MGD (million gallons per day)2022
ALLENDALE NORTH STPAllendale0.06 MGD (million gallons per day)2022
VICTORIA STPVictoria0.06 MGD (million gallons per day)2022
ARENZVILLE STPArenzville0.06 MGD (million gallons per day)2022
HOFFMAN STPHoffman0.06 MGD (million gallons per day)2022
BARTELSO STPBartelso0.06 MGD (million gallons per day)2022
DAMIANSVILLEDamiansville0.06 MGD (million gallons per day)2022
ORANGEVILLE WWTPOrangeville0.06 MGD (million gallons per day)2022
GOOD HOPE STPGood Hope0.06 MGD (million gallons per day)2022
PRAIRIE CITY STWPrairie City0.06 MGD (million gallons per day)2022
ELIZABETH TOWN STPElizabethtown0.06 MGD (million gallons per day)2022
CAVE IN ROCK STPCave In Rock0.06 MGD (million gallons per day)2022
PLYMOUTH STPPlymouth0.058 MGD (million gallons per day)2022
VERSAILLES STPVersailles0.056 MGD (million gallons per day)2022
Big Rock, Village ofBig Rock0.056 MGD (million gallons per day)2022
LOSTANT STPLostant0.056 MGD (million gallons per day)2022
LEAF RIVER WWTPLeaf River0.054 MGD (million gallons per day)2022
LORAINE STPLoraine0.05 MGD (million gallons per day)2022
NILWOOD S T PNilwood0.05 MGD (million gallons per day)2022
FAYETTEVILLE STPFayetteville0.05 MGD (million gallons per day)2022
COYNE CENTER S.D.Milan0.05 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.