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Almost 900 billion litres of raw sewage have been pumped into Canadian waterways since 2013

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Feb 27th, 2020
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Mark Mattson

The Canadian Press

Canada’s old-fashioned city sewer systems dumped nearly 900 billion litres of raw sewage into this country’s waterways over five years, enough to fill up an Olympic-sized swimming pool more than 355,000 times.

The amount of raw sewage being vented is increasing every year, with 2018’s overflow amounts up 44 per cent over 2013.

Mark Mattson, president of Swim Drink Fish Canada, says that number should shock people and he’s hopeful it will push the public to demand swifter action from governments.

He says the number is also far lower than the actual amount of polluted water Canada produces each year because the data isn’t looking at leaks from all municipal water systems, only those that have combined sewer and stormwater pipes.

Mattson is however excited that for the first time Environment Canada is releasing detailed data on wastewater leaks on Ottawa’s open-data website because he says it will make it easier to pinpoint trends and problem points.

Data posted in early February also show that wastewater-treatment plants across the country failed tests of their water quality thousands of times between 2013 and 2018.

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