To ensure any existing onsite sewage system with a design flow of greater than 10,000 Litres per day and regulated under the Ontario Water Resources Act ceases to be or never becomes a significant drinking water threat, where such an activity is, or would be, a significant drinking water threat, the Ministry of the Environment, Conservation and Parks shall review or prepare and, if necessary, amend Environmental Compliance Approvals to incorporate terms and conditions that, when implemented, ensure that these onsite sewage systems are managed to reduce the risk to municipal drinking water sources.

The terms and conditions may include, as appropriate, requirements for the proponent/applicant to undertake mandatory monitoring of groundwater impacts, contingencies in the event that drinking water quality is adversely affected, regular and ongoing compliance monitoring, mandatory system inspections at least every five (5) years, and upgrading of these septic systems to current standards, if necessary. In addition, the terms and conditions may include the proponent/applicant to provide annual reporting to the Source Protection Authority and County of any monitoring and inspection programs required and their results.

(DC-M-CW-1.11): Where the Source Protection Plan policies require a provincial ministry to amend a Prescribed Instrument or the issuance of a new Prescribed Instrument, the applicable Ministry shall provide a summary of the actions taken the previous year to implement the policies and provide a written report summarizing this information to the Source Protection Authority by February 1st of each year.