A new city report also shows 3,067 million litres leaked into Hamilton Harbour in 2019 because the Woodward Wastewater Treatment Plant couldn't handle it. That's up significantly from the 1,868 million litres in 2018, and a five-year average of 1,771 million litres. That material is removed before the operator of Hamilton's largest water treatment plant initiates a bypass. Andrew Grice, head of Hamilton Water, said lake levels were the main culprit. Hamilton had fewer bypasses than Toronto, which let out 4,383 million litres of partially treated sewer and stormwater in 2019, up from 2,093 million litres in 2018.

Source: CBC News August 12, 2020 18:34 UTC