ARTICLE · 22 FEBRUARY 2016

City Hall Shakes Up Sewer Discharge By-law

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At its meeting of February 3, Toronto City Council voted to amend the Sewers By-law (Municipal Code Chapter 681) and the Water Supply By-law (Municipal Code Chapter 851) to address, in part, the discharge of certain pesticides, dental amalgams and wastewaters from the food services and auto servicing sectors..

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At its meeting of February 3, Toronto City Council voted to amend the Sewers By-law (Municipal Code Chapter 681) and the Water Supply By-law (Municipal Code Chapter 851) to address, in part, the discharge of certain pesticides, dental amalgams and wastewaters from the food services and auto servicing sectors.^1,2,3 In addition, new provisions covering the discharge of private water (i.e., water not purchased from the City, including storm water) have caused concern among builders and land developers.

The bulk of the amendments came into effect February 4, 2016, with the effective date of the dental office Pollution Prevention (P2) Program reporting requirements deferred to May 31, 2016.⁴ Additional, significant changes to the sewer discharge standards are likely forthcoming. City staff are currently reviewing the list of "subject pollutants" in the Sewers By-law,⁵ as well as developing a risk-based approach to minimum reporting thresholds for subject pollutants.^6,7,8,

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