Fort Erie Combined Sewer Overflows at Niagara Region Facilities

Data presented here is updated every three months. The data contains records from
May 01, 2019 to April 30, 2020.

Volume is measured in megalitres. (1 megalitre = 1 million litres)

CSO Location Date of Overflow Volume (ML) Reason for Overflow
Fort Erie Plant
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Dec 30, 2019 7.192 ML Heavy Precipitation
Lakeshore SPS
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Dec 30, 2019 0.011 ML Heavy Precipitation
Lakeshore SPS
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Dec 1, 2019 0.003 ML Heavy Precipitation
Fort Erie Plant
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Oct 31, 2019 4.250 ML Heavy Precipitation
Lakeshore SPS
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Oct 31, 2019 0.650 ML Heavy Precipitation
Lakeshore SPS
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Oct 27, 2019 0.003 ML Heavy Precipitation
Fort Erie Plant
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Sep 2, 2019 5.339 ML Heavy Precipitation
Fort Erie Plant
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Aug 21, 2019 9.190 ML Heavy Precipitation
Catherine St PS
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Aug 21, 2019 N/A ML Heavy Precipitation
Lakeshore SPS
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Aug 21, 2019 0.019 ML Heavy Precipitation
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Historical Overflow Data for Fort Erie

201920182017
Total Overflows: 15
Total Volume: 33.942 ML
Total Overflows: 14
Total Volume: 48.228 ML
Total Overflows: 24
Total Volume: 73.407 ML

Overflows contain mostly Storm Water

While the volume of an overflow may seem large, the amount of untreated sewage present in the overflow is small when compared to the amount of stormwater or snow melt.

Niagara typically treats about 80,000 megalitres of sewage each year.  The vast majority of wastewater discharged into the sewer system receives full treatment and only a small percentage of this sewage overflows. These overflows usually only occur during periods of heavy rain or during seasonal snow melts.

Historical Data

If you require more detailed information about a specific combined sewage overflow, you can contact the water & wastewater division.

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