Wastewater data and reports

This page contains information reported under the Wastewater Systems Effluent Regulations (the Regulations).

Annual reports, data reported, maps and other data and reports done on wastewater in Canada are available on this page.

Annual reports

Annual reports on the Regulations provide a summary of the data reported on Canadian wastewater systems subject to 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 data reported under the Regulations from 2013 to 2022:

Access to the wastewater data on Open Government

Wastewater maps 

We have created the following maps using the data reported under the Regulations from 2019 to 2021:

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

Infrastructure funding projects of wastewater systems through Housing, Infrastructure and Communities Canada

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