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

Wastewater treatment plants in United States · Wisconsin

593 inventory records · HydroWASTE v1.0 / United States

Data years: 2012. The inventory date does not establish current operation.

593 results

Name	Native size	Year
LAKE TOMAHAWK SD 1 STPHW:39597	610 population served	2012
SEXTONVILLE SD STPHW:39603	605 population served	2012
PLUM CITY WWTPHW:39392	601 population served	2012
LK WAPOGASSET BEAR TRAP LK WWTPHW:39554	600 population served	2012
IXONIA SD 1 STPHW:39584	600 population served	2012
PATCH GROVE STPHW:39382	598 population served	2012
BROWNSVILLE WWTPHW:39131	594 population served	2012
ABRAMS SD 1 STPHW:39066	593 population served	2012
SURING WWTPHW:39472	592 population served	2012
THREE LAKES SD WWTPHW:39596	592 population served	2012
CASCO WWTPHW:39142	587 population served	2012
MINONG STPHW:39335	587 population served	2012
GRESHAM WWTPHW:39241	583 population served	2012
KIELER SD 1 STPHW:39576	583 population served	2012
WAUSAUKEE WWTPHW:39502	573 population served	2012
CLAYTON STPHW:39155	570 population served	2012
SOUTH WAYNE STPHW:39453	568 population served	2012
STETSONVILLE STPHW:39461	568 population served	2012
FAIRCHILD STPHW:39213	564 population served	2012
NORTH LAKE POYGAN SD STPHW:39616	562 population served	2012
POPLAR STPHW:39394	561 population served	2012
ARKANSAW SD 1 STPHW:39621	555 population served	2012
LEROY KEKOSKEE WWTPHW:39569	551 population served	2012
POY SIPPI SD STPHW:39638	550 population served	2012
NEW AUBURN WWTPHW:39351	548 population served	2012
BIRCHWOOD STPHW:39106	540 population served	2012
TAYLOR WWTPHW:39475	538 population served	2012
HIXTON WWTPHW:39256	536 population served	2012
DALE SD 1 WWTPHW:39537	536 population served	2012
OXFORD WWTPHW:39376	534 population served	2012
WILTON WWTPHW:39521	532 population served	2012
VESPER STPHW:39491	531 population served	2012
SUPERIOR VILLAGE STPHW:39471	528 population served	2012
LYNDON STATION STPHW:39304	526 population served	2012
IRON RIVER SD 1 STPHW:39563	525 population served	2012
HATLEY STPHW:39058	524 population served	2012
MELROSE WWTPHW:39323	520 population served	2012
NESHKORO WWTPHW:39350	520 population served	2012
PRAIRIE FARM STPHW:39404	518 population served	2012
Rosholt STPHW:39432	516 population served	2012
LENA WWTPHW:39295	513 population served	2012
Whitecap Mountains SD STPHW:39054	509 population served	2012
SAINT CLOUD WWTPHW:39434	500 population served	2012
MORRISON SD 1 STPHW:39550	500 population served	2012
FOREST JUNCTION SD WWTPHW:39566	500 population served	2012
Lebanon SD 2 WWTPHW:39545	499 population served	2012
Danbury St Croix Chippewa JWQCHW:39128	498 population served	2012
ONTARIO WWTPHW:39368	495 population served	2012
WEYERHAEUSER STPHW:39511	493 population served	2012
WRIGHTSTOWN SD 1 STPHW:39560	493 population served	2012
COLOMA STPHW:39166	489 population served	2012
Bay City STPHW:39096	480 population served	2012
HANCOCK WWTPHW:39243	480 population served	2012
LAKEWOOD SD 1 STPHW:39292	480 population served	2012
ELCHO SD 1 STPHW:39641	479 population served	2012
Gibbsville SD STPHW:39608	469 population served	2012
KENDALL STPHW:39276	467 population served	2012
COBB STPHW:39161	461 population served	2012
ENDEAVOR WWTPHW:39209	460 population served	2012
ALMOND WWTPHW:39071	457 population served	2012
EASTMAN WWTPHW:39195	457 population served	2012
WALDO WWTPHW:39494	456 population served	2012
PIGEON FALLS WWTPHW:39386	454 population served	2012
COCHRANE WWTPHW:39162	450 population served	2012
PACKWAUKEE SD 1 STPHW:39548	447 population served	2012
BLUE RIVER STPHW:39115	435 population served	2012
ETTRICK WWTPHW:39210	435 population served	2012
MATTOON WWTPHW:39318	435 population served	2012
KNAPP WWTPHW:39284	428 population served	2012
FORESTVILLE STPHW:39615	427 population served	2012
MERRIMAC STPHW:39328	424 population served	2012
BEAR CREEK WWTPHW:39599	420 population served	2012
ROCK SPRINGS STPHW:39430	417 population served	2012
GRANTON WWTPHW:39236	407 population served	2012
NELSON STPHW:39134	405 population served	2012
BUTTERNUT WWTPHW:39136	400 population served	2012
READSTOWN WWTPHW:39412	395 population served	2012
JUDA SD 1 WWTPHW:39272	390 population served	2012
DE SOTO STPHW:39630	389 population served	2012
CLYMAN WWTPHW:39160	388 population served	2012
JUNCTION CITY STPHW:39273	388 population served	2012
BAGLEY STPHW:39087	379 population served	2012
SCANDINAVIA STPHW:39438	374 population served	2012
KELLNERSVILLE WWTPHW:39275	373 population served	2012
LOWELL STPHW:39543	371 population served	2012
GOODMAN SD WWTPHW:39633	370 population served	2012
FAIRWATER WWTPHW:39214	366 population served	2012
OGEMA SD 1 STPHW:39601	360 population served	2012
GENOA STPHW:39230	359 population served	2012
LIBERTY SD 1 STPHW:39587	355 population served	2012
ARPIN WWTPHW:39618	354 population served	2012
WHITE LAKE STPHW:39515	352 population served	2012
BOWLER STPHW:39121	351 population served	2012
WHEELER STPHW:39512	350 population served	2012
MARIBEL WWTPHW:39311	349 population served	2012
DALLAS STPHW:39178	342 population served	2012
RIDGELAND WWTPHW:39422	333 population served	2012
BURNETT SD 1 STPHW:39542	330 population served	2012
HOLLAND SD 1 WWTPHW:39540	325 population served	2012
LEBANON SD 1 STPHW:39544	325 population served	2012

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.

US EPA · NPDES Permit Basics

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.