CSO Water Quality Reporting
As required by the Province of Manitoba we collect:
- River and stream water quality data during specific wet and dry weather conditions
- Combined Sewer Overflow (CSO) discharge water samples during wet weather events
Samples are tested for various parameters, including nutrients, dissolved oxygen, and bacteria.
We collected baseline data in 2014 and 2015. This data was used in the CSO Master Plan and helped us meet our licence requirements. The Province’s approval of the CSO Master Plan in 2019 required us to continue collecting samples and submit water quality reports every five years.
In addition to these tests, we conduct voluntary water quality monitoring of local rivers and small streams.
Our first report was submitted in December 2024. Our next report is due December 31, 2029. Reports can be found on the CSO Master Plan webpage under the ‘Documents’ tab.
2024
Wet weather
River
- May 3 - 5 (pdf - 98kb)
- May 25 - 27 (pdf - 96kb)
Stream
- May 3 - 5 (pdf - 94kb)
- May 25 - 27 (pdf - 94kb)
CSO discharge monitoring
- Ash CSO Outfall (pdf - 87kb)
- Hawthorne CSO Outfall (pdf - 85kb)
2023
Dry weather
River
- September 11 - 13 (pdf - 143kb)
- July 29 - 31 (pdf - 143kb)
Stream
- September 11 - 13 (pdf - 123kb)
- July 29 - 31 (pdf - 124kb)
Wet weather
Rivers
- September 5 - 7 (pdf - 144kb)
Streams
- September 5 - 7 (pdf - 123kb)
CSO discharge monitoring
- Ash CSO Outfall (pdf - 116kb)
- Hawthorne CSO Outfall (pdf - 116kb)
2015
Dry weather
Assiniboine River
- July 2 - 4 (pdf - 50kb)
Red River
- July 2 - 4 (pdf - 52kb)
Small streams
- July 2 - 4 (pdf - 49kb)
Wet weather
Assiniboine River
- July 5 - 7 (pdf - 50kb)
- June 28 - 30 (pdf - 50kb)
- June 9 (pdf - 50kb)
Red River
- July 5 - 7 (pdf - 52kb)
- June 28 - 30 (pdf - 53kb)
- June 9 (pdf - 52kb)
Small streams
- July 5 - 7 (pdf - 49kb)
- June 28 - 30 (pdf - 49kb)
- June 9 (pdf - 49kb)
CSO discharge monitoring
- Ash CSO Outfall (pdf - 82kb)
- Assiniboine CSO Outfall (pdf - 82kb)
- Colony CSO Outfall (pdf - 82kb)
- Hawthorne CSO Outfall (pdf - 82kb)
- Jessie CSO Outfall (pdf - 82kb)
- Mission CSO Outfall (pdf - 82kb)
- Mager CSO Outfall (pdf - 82kb)
- Strathmillan CSO Outfall (pdf - 82kb)
2014
Dry weather
Assiniboine River
- October 15- 19 (pdf - 59kb)
Red River
- October 15 - 19 (pdf - 62kb)
Small streams
- October 15 - 19 (pdf - 57kb)