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

Wastewater treatment plants in United States · Wisconsin

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586 inventory records · EPA Clean Watersheds Needs Survey 2022

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

586 results

CompareNameNative sizeYear
SCANDINAVIA STPScandinavia0.04 MGD (million gallons per day)2022
UNION CENTER WWTPUnion Center0.04 MGD (million gallons per day)2022
WEYERHAEUSER STPWeyerhaeuser0.04 MGD (million gallons per day)2022
LOWELL STPLowell0.04 MGD (million gallons per day)2022
Drummond SD #1 - WWTPDrummond0.04 MGD (million gallons per day)2022
Shawano Co. Utilities - WWTPShawano0.038 MGD (million gallons per day)2022
MATTOON WWTPMattoon0.038 MGD (million gallons per day)2022
BURNETT SD #1 STPBurnett0.037 MGD (million gallons per day)2022
BROKAW WWTPBrokaw0.036 MGD (million gallons per day)2022
LEBANON SD #1 STPLebanon0.036 MGD (million gallons per day)2022
Maple Grove Estates SD - STPWest Salem0.035 MGD (million gallons per day)2022
CAZENOVIA STPCazenovia0.035 MGD (million gallons per day)2022
FERRYVILLE WWTPFerryville0.035 MGD (million gallons per day)2022
GRATIOT STPGratiot0.035 MGD (million gallons per day)2022
BRULE SD - STPBrule0.035 MGD (million gallons per day)2022
OGEMA SD #1 STPOgema0.035 MGD (million gallons per day)2022
BOWLER STPBowler0.034 MGD (million gallons per day)2022
WHITE LAKE STPWhite Lake0.034 MGD (million gallons per day)2022
LAKELAND SD #1 STP (Barron)Barronett0.034 MGD (million gallons per day)2022
GRAND VIEW SD #1 - STPGrand View0.033 MGD (million gallons per day)2022
Catawba-Kennan Joint SC - STPCatawba0.033 MGD (million gallons per day)2022
ARKANSAW SD # 1 - STPArkansaw0.033 MGD (million gallons per day)2022
RIDGELAND WWTPRidgeland0.032 MGD (million gallons per day)2022
DOWNSVILLE SD #1 - STPMenomonie0.032 MGD (million gallons per day)2022
AMANI SD STPMilwaukee0.032 MGD (million gallons per day)2022
Bluffview Sanitary District - STPBaraboo0.03 MGD (million gallons per day)2022
DEER PARK STPDeer Park0.03 MGD (million gallons per day)2022
MARIBEL WWTPMaribel0.03 MGD (million gallons per day)2022
HOLLANDALE STPHollandale0.03 MGD (million gallons per day)2022
AURORA SD #1 WWTPFlorence0.03 MGD (million gallons per day)2022
LIBERTY SD #1 - STPValders0.03 MGD (million gallons per day)2022
ROZELLVILLE SD #1 - STPStratford0.03 MGD (million gallons per day)2022
MILAN SD - STPJohnson Creek0.03 MGD (million gallons per day)2022
PLYMOUTH SD #1 STPHanover0.03 MGD (million gallons per day)2022
STONE LAKE STPStone Lake0.03 MGD (million gallons per day)2022
GREEN LAKE WWTPGreen Lake0.029 MGD (million gallons per day)2022
BLENKER SHERRY SD - WWTPMilladore0.028 MGD (million gallons per day)2022
EXELAND STPExeland0.027 MGD (million gallons per day)2022
FRIESLAND WWTPFriesland0.027 MGD (million gallons per day)2022
Spring Green Golf Club Sanitary Dist #2 WWTFSpring Green0.026 MGD (million gallons per day)2022
HUB ROCK SD #1 - STPRichland Center0.026 MGD (million gallons per day)2022
PORT WING WWTPPort Wing0.025 MGD (million gallons per day)2022
REWEY STPRewey0.025 MGD (million gallons per day)2022
ROCKDALE STPCambridge0.025 MGD (million gallons per day)2022
ROXBURY SD #1 STPSauk City0.025 MGD (million gallons per day)2022
STITZER SD - STPStitzer0.025 MGD (million gallons per day)2022
ROCKLAND SD #1 - STPCollins0.025 MGD (million gallons per day)2022
BAGLEY STPBagley0.024 MGD (million gallons per day)2022
HAUGEN STPHaugen0.024 MGD (million gallons per day)2022
WILSON STPWilson0.024 MGD (million gallons per day)2022
STEPHENSVILLE SD #1 - WWTPHortonville0.024 MGD (million gallons per day)2022
MAIDEN ROCK STPMaiden Rock0.023 MGD (million gallons per day)2022
TONY STPTony0.023 MGD (million gallons per day)2022
HAWKINS WWTPHawkins0.022 MGD (million gallons per day)2022
KINGSTON WWTPKingston0.021 MGD (million gallons per day)2022
BELL SD #1 STPCornucopia0.02 MGD (million gallons per day)2022
CLOVER SD #1 STPHerbster0.02 MGD (million gallons per day)2022
Ho-Chunk Blue Wing WWTPTomah0.02 MGD (million gallons per day)2022
LUBLIN WWTPLublin0.02 MGD (million gallons per day)2022
MAPLEWOOD SD #1 STPMaplewood0.02 MGD (million gallons per day)2022
HUSTLER STPHustler0.02 MGD (million gallons per day)2022
DODGE SD #1 - STPDodge0.019 MGD (million gallons per day)2022
CUSHING SD #1 - STPCushing0.018 MGD (million gallons per day)2022
WYEVILLE STPTomah0.018 MGD (million gallons per day)2022
KOSSUTH SD #2 STPFrancis Creek0.018 MGD (million gallons per day)2022
WESTBORO SD #1 - STPWestboro0.018 MGD (million gallons per day)2022
CHILI WWTPChili0.017 MGD (million gallons per day)2022
LIME RIDGE STPLime Ridge0.015 MGD (million gallons per day)2022
JAMESTOWN SD #2 STPKieler0.015 MGD (million gallons per day)2022
BOAZ STPMuscoda0.015 MGD (million gallons per day)2022
FENWOOD STPStratford0.015 MGD (million gallons per day)2022
Saxon Sanitary District - WWTPHurley0.014 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
CRYSTAL LAKE SD - STP (Barron)Comstock0.012 MGD (million gallons per day)2022
HILL POINT SD - STPHillpoint0.011 MGD (million gallons per day)2022
MASON STPBayfield0.011 MGD (million gallons per day)2022
SAND CREEK SD #1 - STPSand Creek0.011 MGD (million gallons per day)2022
CHELSEA SD WWTPMedford0.011 MGD (million gallons per day)2022
Flambeau Correctional Center WastewaterHawkins0.01 MGD (million gallons per day)2022
Brighton Dale Links WWTPKansasville0.01 MGD (million gallons per day)2022
WAUMANDEE SD #1 STPArcadia0.01 MGD (million gallons per day)2022
NORTH BEND SD #1 WWTPMelrose0.01 MGD (million gallons per day)2022
CONRATH STPConrath0.009 MGD (million gallons per day)2022
RICHMOND SD #1 (St. Croix Co.) STPNew Richmond0.008 MGD (million gallons per day)2022
Potosi - CSPotosi0.005 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.