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

Wastewater treatment plants in Canada

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2,046 inventory records · HydroWASTE v1.0 / Canada

Data years: 2017. The inventory date does not establish current operation.

2,046 results

CompareNameNative sizeYear
Ashbridges Bay Treatment PlantHW:478131,283,062 population served2017
Iona Island Wastewater Treatment PlantHW:476461,259,061 population served2017
Station d epuration des eaux usees Jean R MarcotteHW:476411,190,406 population served2017
Annacis Island Wastewater Treatment PlantHW:476451,100,693 population served2017
GE Booth Wastewater Treatment PlantHW:478611,014,817 population served2017
Robert O Pickard Environmental CentreHW:47781890,905 population served2017
Bonnybrook Wastewater Treatment PlantHW:47788811,281 population served2017
Humber Treatment PlantHW:47809734,997 population served2017
Centre d epuration Rive Sud CERSHW:47756727,531 population served2017
Duffin Creek WPCPHW:47638725,257 population served2017
Woodward Avenue Wastewater Treatment PlantHW:47806619,504 population served2017
Gold Bar Wastewater Treatment PlantHW:47644566,304 population served2017
Station Est d epuration des eaux useesHW:47753426,663 population served2017
North End Water Pollution Control Centre NEWPCCHW:47784381,648 population served2017
Highland Creek Treatment PlantHW:47892381,123 population served2017
Station Ouest d epuration des eaux useesHW:47754365,893 population served2017
Clarkson Wastewater Treatment PlantHW:47863356,906 population served2017
Lou Romano Water Reclamation PlantHW:47750316,940 population served2017
Usine d epuration regionaleHW:47687302,908 population served2017
Station d epuration La PiniereHW:47695271,719 population served2017
Greenway Pollution Control CentreHW:47792255,739 population served2017
Burlington Skyway Wastewater Treatment PlantHW:47771212,481 population served2017
Halifax Wastewater Treatment FacilityHW:47818208,931 population served2017
Lions Gate Wastewater Treatment PlantHW:47804196,906 population served2017
WASTEWATER TREATMENT PLANTHW:47776189,317 population served2017
Station d epuration de SherbrookeHW:47735176,943 population served2017
Alberta Capital Region Wastewater Commission Treatment PlantHW:47696169,628 population served2017
Riverhead Wastewater Treatment FacilityHW:47705164,586 population served2017
Lulu Island Wastewater Treatment PlantHW:47803158,171 population served2017
Pine Creek Wastewater Treatment PlantHW:47790157,234 population served2017
Kitchener Wastewater Treatment PlantHW:47726146,333 population served2017
etangs aeres de Trois RivieresHW:47835139,556 population served2017
Station d epuration des eaux useesHW:47814137,177 population served2017
GMWC Wastewater Treatment FacilityHW:47672129,644 population served2017
Regie d Assainissement des Eaux du Bassin de LaprairieHW:48319120,308 population served2017
JAMES Pollution Control CenterHW:47731118,045 population served2017
South End Water Pollution Control Centre SEWPCCHW:47783117,898 population served2017
Dartmouth Wastewater Treatment FacilityHW:47743116,359 population served2017
Clover Point Pump StationHW:47786111,363 population served2017
Ravensview Wastewater TreatmentHW:47732110,862 population served2017
Water Pollution Control PlantHW:47679107,764 population served2017
etangs Aeres secteur DesjardinsHW:47675107,354 population served2017
Water Pollution Control CentreHW:47643106,626 population served2017
Station d epuration Sainte Therese BlainvilleHW:47654106,463 population served2017
Mid Halton Wastewater Treatment PlantHW:47745104,503 population served2017
STATION D ePURATION DES EAUX USeESHW:48506103,927 population served2017
Station d epuration des eaux usees de GranbyHW:47684102,572 population served2017
City of Guelph Wastewater Treatment PlantHW:47780102,325 population served2017
Macaulay Point Pump StationHW:47787101,006 population served2017
Station d epuration FabrevilleHW:4769498,946 population served2017
Waterloo Wastewater Treatment PlantHW:4772796,696 population served2017
Corbett Creek WPCPHW:4779994,454 population served2017
etangs aeres TerrebonneHW:4783893,667 population served2017
Usine epuration ChicoutimiHW:4773891,170 population served2017
Niagara Falls Wastewater Treatment PlantHW:4775888,151 population served2017
PTBO WASTE WATER TREATMENT PLANTHW:4771584,876 population served2017
Port Weller Wastewater Treatment PlantHW:4775582,850 population served2017
Station d epuration AuteuilHW:4769382,075 population served2017
Wastewater Treatment FacilityHW:4772078,778 population served2017
Wastewater Treatment PlantHW:4770477,974 population served2017
Station epuration St BernardHW:4768577,954 population served2017
Lethbridge WWTPHW:4857277,954 population served2017
Lansdowne Road Wastewater Treatment CentreHW:4766975,872 population served2017
City of Brantford Water Pollution Control PlantHW:4779773,858 population served2017
Greater Nanaimo Pollution Control CentreHW:4772173,564 population served2017
Fish Creek Wastewater Treatment PlantHW:4778972,566 population served2017
Port Dalhousie Wastewater Treatment PlantHW:4775271,248 population served2017
Sudbury Wastewater Treatment PlantHW:4768870,383 population served2017
Harmony Creek WPCPHW:4779866,217 population served2017
CATARAQUI BAY WASTEWATER TREATMENTHW:4772365,542 population served2017
Welland Wastewater Treatment PlantHW:4776565,300 population served2017
Usine traitement d eau usees de DrummondvilleHW:4776963,133 population served2017
Station d epuration Terrebonne MascoucheHW:4767060,639 population served2017
Oakville Southwest Wastewater Treatment PlantHW:4776660,359 population served2017
Regie d assainissement des eaux de la Vallee du RichelieuHW:4831259,958 population served2017
North Toronto Treatment PlantHW:4780858,259 population served2017
Station d epuration St Basile St BrunoHW:4767357,490 population served2017
Courtice WPCPHW:4780056,664 population served2017
station de traitement des eaux useesHW:4770755,682 population served2017
Galt Wastewater Treatment PlantHW:4772855,022 population served2017
Usine epuration JonquiereHW:4773753,453 population served2017
Water Pollution Control CentreHW:4764952,198 population served2017
Adelaide Pollution Control PlantHW:4779652,073 population served2017
Pottersburg Pollution Control PlantHW:4779452,067 population served2017
North Bay Wastewater Treatment PlantHW:4929751,454 population served2017
Usine d epurationHW:4771851,167 population served2017
Wastewater Treatment PlantHW:4777850,539 population served2017
East Wastewater Treatment PlantHW:4769950,492 population served2017
Little River Pollution Control Plant 2HW:4789349,091 population served2017
Belleville Wastewater Treatment FacilityHW:4765748,607 population served2017
Usine d epuration Achille GagnonHW:4769748,340 population served2017
Chatham Water Pollution Control PlantHW:4805547,292 population served2017
Cornwall Wastewater Treatment PlantHW:4770946,420 population served2017
usine d epuration de la SeigneurieHW:4777446,071 population served2017
Station epuration St NicolasHW:4767845,521 population served2017
Oakville Southeast Wastewater Treatment PlantHW:4776345,067 population served2017
Station d epurationHW:4829342,120 population served2017
Station d epuration Rimouski estHW:4768937,861 population served2017
Station d epuration des eaux useesHW:4777537,645 population served2017
Battery Point Treatment PlantHW:4765537,035 population served2017

Regulatory context

General reference. This is not an exhaustive review of applicable law.

Canada: Wastewater Systems Effluent Regulations

Section 2 defines the federal regulation's scope, with flow conditions and territorial and facility-type exceptions. Inventory population served cannot establish those conditions.

  • Daily influent volume, wastewater type and administrative location.
  • Exceptions and provincial requirements; facility authorization and limits.

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