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

Wastewater treatment plants in United States · Minnesota

165 inventory records · HydroWASTE v1.0 / United States

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

165 results

Name	Native size	Year
DEER RIVER STPHW:31304	935 population served	2012
WALKER STPHW:31314	915 population served	2012
BUHL WWTPHW:31236	887 population served	2012
MORGAN WWTPHW:31259	871 population served	2012
FERTILE WWTPHW:31359	832 population served	2012
HENNING STPHW:31311	819 population served	2012
LAMBERTON WWTPHW:31349	817 population served	2012
EMILYHW:31370	813 population served	2012
BLACKDUCK WWTPHW:31346	803 population served	2012
BROWERVILLE STPHW:31323	801 population served	2012
KIMBALL WW TREATMENT PLNTHW:31272	787 population served	2012
LAKE PARK STPHW:31330	783 population served	2012
CASS LAKE STPHW:31257	752 population served	2012
TRIMONT STPHW:31309	746 population served	2012
ROTHSAY WWTPHW:31264	742 population served	2012
BELGRADE STPHW:31262	738 population served	2012
ELLENDALE STPHW:31350	711 population served	2012
HOLDINGFORD STPHW:31271	702 population served	2012
ELMORE STPHW:31321	689 population served	2012
LITTLEFORK WWTPHW:31260	640 population served	2012
GROVE CITY WWTSHW:31267	640 population served	2012
MCINTOSH WWTPHW:31361	622 population served	2012
EVANSVILLE WWTFHW:31261	621 population served	2012
WALNUT GROVE WWTPHW:31353	599 population served	2012
BIGFORK STPHW:31302	591 population served	2012
STEWART WWTFHW:31290	572 population served	2012
GRACEVILLE LAGOONHW:31292	571 population served	2012
BROWNS VALLEY STPHW:31336	569 population served	2012
COOK MUN WWTFHW:31238	564 population served	2012
ULEN WASTEWATER TREAT PLTHW:31231	550 population served	2012
SACRED HEART WWTPHW:31363	548 population served	2012
LAFAYETTE STPHW:31317	545 population served	2012
FLOODWOOD WWTR TRTMT WKSHW:31240	533 population served	2012
EAGLE BEND STPHW:31324	523 population served	2012
COMFREY STPHW:31332	520 population served	2012
CLEARBROOK STPHW:31357	511 population served	2012
HAMBURG STPHW:31281	508 population served	2012
BERTHA STPHW:31322	502 population served	2012
BRANDON WWTPHW:31297	497 population served	2012
KANDIYOHI STPHW:31352	478 population served	2012
BROWNSVILLE WWTPHW:31334	456 population served	2012
MILTONA WWTPHW:31298	453 population served	2012
ELLSWORTH STPHW:31331	448 population served	2012
MORTON WWTPHW:31362	405 population served	2012
MAYNARD STPHW:31319	362 population served	2012
NEW GERMANY WWTFHW:31266	356 population served	2012
OGILVIE STPHW:31340	348 population served	2012
VERNON CENTER WWTPHW:31263	327 population served	2012
DEER CREEK STPHW:31293	321 population served	2012
ST MARTIN STPHW:31275	314 population served	2012
ASKOV WWTPHW:31344	311 population served	2012
CLIMAX WWTPHW:31354	272 population served	2012
GONVICK STPHW:31358	257 population served	2012
CROMWELL STPHW:31347	252 population served	2012
BACKUS CSHW:31294	238 population served	2012
NORTHROP STPHW:31308	226 population served	2012
HITTERDAL WWTFHW:31230	201 population served	2012
NORTHOME WWTPHW:31307	194 population served	2012
DENT STPHW:31310	192 population served	2012
WARBA STPHW:31316	181 population served	2012
FELTON WWTPHW:31228	169 population served	2012
GRASSTON STPHW:31338	169 population served	2012
LONGVILLE STPHW:31313	151 population served	2012
CRANE LAKE WSDHW:31373	96 population served	2012
IRON JUNCTION STPHW:31237	85 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.