Wastewater data and reports

On this page, you will find links to the Open Data site. This site contains data reported under the Wastewater Systems Effluent Regulations (the Regulations).

Annual Wastewater Systems Effluent Regulations Reports are also available on this page.

Other data and reports done on wastewater in Canada are available on this page. 

Annual reports

Annual reports on the Wastewater Systems Effluent Regulations provide a summary of the data reported on Canadian wastewater systems under the Regulations. Annual Status Reports are currently available for the years listed below.

2018 Status report

2018 Status report - [PDF - 7.48 MB]

2017 annual report

2017 annual report [PDF - 3.71 MB]

2016 annual report

2016 annual report [PDF - 3.00 MB]

Data reported 

The Open Government dataset includes the following data reported under the Regulations from 2013 to 2020:

Access to the wastewater data on Open Government

Wastewater maps 

We have created the following maps using the data reported under the Regulations from 2013 to 2020:

Treatment types of the wastewater systems in Canada subject to the Regulations

Submitted effluent quality results under the Regulations 

Acute lethality test results from wastewater systems subject to the Regulations

Combined Sewer Overflow volumes from wastewater systems subject to the Regulations

Combined Sewer Overflow points under the Regulations

Other data and reports

Discharge of untreated wastewater in the St. Lawrence River

Additional data on infrastructure funding of wastewater systems through Infrastructure Canada

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