RE:New Wastewater Regs
From Environment Canada's website regarding the new regulations:
The effluent quality standards will be phased-in. It is expected that about 75 percent of existing wastewater systems already meet the minimum secondary wastewater treatment standards in the regulations and do not need to be upgraded. The Regulations address how and when the remaining 25% will be required to meet the standards. Wastewater systems posing a high risk will be required to meet the effluent quality standards by the end of 2020, medium risk by the end of 2030, and low risk by the end of 2040.