Description

The Wastewater Systems Effluent Regulations (WSER), developed under the Fisheries Act, came into force in 2012 to manage wastewater releases by systems that collect an average daily influent volume of 100 cubic metres or more. The WSER also does not apply to any wastewater system located in the Northwest Territories, Nunavut and north of the 54th parallel in the provinces of Quebec and Newfoundland and Labrador. The WSER set national baseline effluent quality standards that are achievable through secondary wastewater treatment. The province of Quebec provided some combined sewer overflow data for 2020, which includes information on whether a discharge occurred at a combined sewer overflow point during the year. The map below shows the number of CSO points with at least one overflow event within each wastewater system. The map is available in both ESRI REST (to use with ARC GIS) and WMS (open source) formats. For more information about the individual reporting wastewater systems, datasets are available in either CSV or XLS formats. More information on the wastewater sector including the regulations, agreements, contacts and resource documents is available at: https://www.canada.ca/wastewater

Resources

Name	Format	Description	Link
Resaeu-Wser-unitaires-combined-points.csv	CSV		https://data-donnees.ec.gc.ca/data/substances/planinfrastruture/wastewater-systems-effluent-regulations-reported-data/Resaeu-Wser-unitaires-combined-points.csv
Resaeu-Wser-unitaires-combined-points.xlsx	xlsx		https://data-donnees.ec.gc.ca/data/substances/planinfrastruture/wastewater-systems-effluent-regulations-reported-data/Resaeu-Wser-unitaires-combined-points.xlsx
Combined sewer overflow (CSO) points	Ersi REST		https://maps-cartes.ec.gc.ca/arcgis/rest/services/DMS/CSO_points/MapServer
Number of CSO points that discharged	Ersi REST		https://maps-cartes.ec.gc.ca/arcgis/rest/services/DMS/CSO_points/MapServer/0
Combined sewer overflow (CSO) points	Ersi REST		https://maps-cartes.ec.gc.ca/arcgis/rest/services/DMS/Points_de_DEU/MapServer
Number of CSO points that discharged	Ersi REST		https://maps-cartes.ec.gc.ca/arcgis/rest/services/DMS/Points_de_DEU/MapServer/0
Combined sewer overflow (CSO) points	WMS		https://maps-cartes.ec.gc.ca/arcgis/services/DMS/CSO_points/MapServer/WMSServer?request=GetCapabilities&service=WMS
Combined sewer overflow (CSO) points	WMS		https://maps-cartes.ec.gc.ca/arcgis/services/DMS/Points_de_DEU/MapServer/WMSServer?request=GetCapabilities&service=WMS

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