Chart 1
Municipal wastewater discharges by treatment category, 2017

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Canada Newfoundland and Labrador Prince Edward Island Nova Scotia New Brunswick Quebec Ontario Manitoba Saskatchewan Alberta British Columbia Yukon 0 50 100 % Primary treatmentPrimary treatment Secondary treatmentSecondary treatment Tertiary treatmentTertiary treatment No treatment (including CSOs)No treatment (including CSOs)
Note(s):
CSOs: combined sewer overflows.
Source(s):
Tables 38-10-0124-01 and 38-10-0100-01.

Chart description


This is a bar stacked chart.

Municipal wastewater discharges by treatment category, 2017, %
  Primary treatment Secondary treatment Tertiary treatment No treatment (including CSOs)
Canada 25.3 46.5 23.7 4.4
Newfoundland and Labrador 48.7 13.5 1.1 36.6
Prince Edward Island 0.8 78.8 20.4 0.0
Nova Scotia 40.5 25.3 9.7 24.5
New Brunswick 19.1 68.5 0.5 11.9
Quebec 50.0 39.8 7.4 2.7
Ontario 0.6 59.4 39.0 1.0
Manitoba 1.7 75.1 18.8 4.5
Saskatchewan 0.0 54.8 45.1 0.1
Alberta 0.1 17.3 81.4 1.2
British Columbia 36.5 45.1 7.3 11.1
Yukon 0.0 100.0 0.0 0.0
Note(s):
CSOs: combined sewer overflows.
Source(s):
Tables 38-10-0124-01 and 38-10-0100-01.
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