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

Wastewater treatment plants in United States · Idaho

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180 inventory records · HydroWASTE v1.0 / United States

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

180 results

CompareNameNative sizeYear
LAVA HOT SPRINGS S_T FACILITYHW:27383737 population served2012
Meridian Heights Water and Sewer AssoHW:27538732 population served2012
MOYIE SPRINGS S_T FACHW:27497718 population served2012
HORSESHOE BEND S_T FACILITYHW:27439707 population served2012
S Frk Coeur D Alene Rvr SD MullanHW:27408692 population served2012
DUBOIS S_T FACILITYHW:27484677 population served2012
RIRIE SEWAGE LAGOONSHW:27381656 population served2012
CHALLIS AIRPORT LAGOON SYSTEMHW:27485649 population served2012
Grand View Sewage SystemHW:27539644 population served2012
FRANKLIN S_T FACILITYHW:27385641 population served2012
SMELTERVILLE S_T FACILITYHW:27437627 population served2012
DOWNEY SEWAGE LAGOON SYSTEMHW:27522625 population served2012
Carey Wastewater FaciltyHW:27457604 population served2012
SANTA FERNWOOD S_T FACILITYHW:27410584 population served2012
ROBERTS S_T FACILITYHW:27491580 population served2012
JULIAETTA STPHW:27430579 population served2012
THE MEADOWS LLCHW:27459576 population served2012
GARFIELD BAY SEWER SYSTEMHW:27404564 population served2012
ELLISPORT BAY S_T FACILITYHW:27510558 population served2012
DOVER S_T FACILITYHW:27533556 population served2012
WEIPPE S_T SystemHW:27418551 population served2012
PIERCE S_T PLANTHW:27417543 population served2012
KIDD ISLAND BAY STPHW:27511536 population served2012
NOTUS SEWAGE TREATMENT SYSTEMHW:27392531 population served2012
MACKAY SEWAGE LAGOONHW:27486517 population served2012
PARIS SEWAGE LAGOONHW:27382513 population served2012
MELBA STPHW:27525513 population served2012
DEARY S_T FACILITYHW:27428506 population served2012
N Idaho Correctional Facility STPHW:27420504 population served2012
RICHFIELD LAGOONSHW:27391482 population served2012
MUD LAKE STPHW:27517480 population served2012
GEORGETOWN S_T FACILITYHW:27476476 population served2012
BOTTLE BAY S_T FACILITYHW:27496445 population served2012
Challis Cyprus Lagoon SystemHW:27540432 population served2012
FAIRFIELD S_T FACILITYHW:27461416 population served2012
EDEN SEWAGE TRT FACHW:27523405 population served2012
Huckleberry Bay Sewage Treatmnt SysHW:27528403 population served2012
CULDESAC S_T FACILITYHW:27436380 population served2012
BANCROFT SEWAGE LAGOONHW:27483377 population served2012
ELK CITY SEWAGE TREATMENT SYSTEMHW:27502360 population served2012
DECLO STPHW:27521343 population served2012
DIETRICH STPHW:27516332 population served2012
CAMBRIDGE SEWAGE LAGOONHW:27454328 population served2012
NEWDALE S_T FACILITYHW:27504323 population served2012
Bliss Sewage LagoonsHW:27506318 population served2012
KENDRICK S_T FACILITYHW:27395303 population served2012
ROCKLAND SEWAGE TREATMENT SYSTEMHW:27503295 population served2012
TETONIA S_T FACILITYHW:27514269 population served2012
ALBION SEWAGE TRT FACHW:27519260 population served2012
Elk Bend Sewer SystemHW:27361255 population served2012
NORTH TOMER BUTTE LAGOONHW:27532250 population served2012
WINCHESTER S_T FACILITYHW:27435245 population served2012
MOORE Water and Sewer AssociationHW:27482245 population served2012
JOINT SCHOOL DIST 171 TIMBERLINE HS LSASHW:27416230 population served2012
CASTLEFORD STPHW:27520226 population served2012
BRUNEAU S_T FACILITYHW:27505212 population served2012
Carlin Bay Wastewater SystemHW:27362210 population served2012
BLOOMINGTON S_T FACILITYHW:27475206 population served2012
HARRISON S_T FACILITYHW:27499203 population served2012
BOVILL S_T FACILITYHW:27426200 population served2012
PRINCETON HAMPTONHW:27433188 population served2012
FERDINAND S_T FACILITYHW:27509159 population served2012
AHSAHKA STPHW:27515150 population served2012
Country Haven Estates LagoonsHW:27534135 population served2012
Letha Sewage LagoonsHW:27447128 population served2012
ELK RIVER STPHW:27414125 population served2012
VIOLA ST FACILITIESHW:27531125 population served2012
South Park Utilities Water and SewerHW:27535125 population served2012
TENSED W_W TREATMENT FACHW:27396123 population served2012
ROSWELL LSASHW:27529117 population served2012
RAPID RIVER SEWAGE TREATMENT FACHW:27424115 population served2012
MURTAUGH SEWAGE LAGOONSHW:27472115 population served2012
CLARKIA SEWAGE TREATMENT SYSTEMHW:27507104 population served2012
WHITE BIRD SEWAGE TREATMENT SYSTEMHW:2742591 population served2012
Hoodoo Harvard Wastewater SystemHW:2743286 population served2012
EMIDA LAGOON SYSTEMHW:2751377 population served2012
REUBENS LSASHW:2751871 population served2012
Blackfoot Harbor SubdivisionHW:2753666 population served2012
Helmer Sewage Treatment SystemHW:2742732 population served2012
FENN S_T FACILITYHW:2753025 population served2012

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.