To reduce the risk to municipal drinking water sources from the application of agricultural source material (ASM), this activity shall be managed where it is or would be a significant drinking water threat.

This activity shall be designated for the purposes of Section 58 of the Clean Water Act and a Risk Management Plan shall be required. The Risk Management Official must be satisfied that the Risk Management Plan will adequately manage the activity so that it ceases to be or never becomes a significant drinking water threat.

Any Prescribed Instrument related to the Application of ASM that is created, amended, or used as part of a notice for the purpose of a Section 61 exemption, shall manage the activity so that it ceases to be or never becomes a significant drinking water threat. OMAFRA is expected to review Prescribed Instruments that it issues under the Nutrient Management Act in areas where the activities they regulate are, or would be, significant drinking water threats to ensure the Prescribed Instruments contain such terms and conditions. 

Further, OMAFRA and other Prescribed Instrument creators/issuers are expected to consult with the Risk Management Official with respect to any modifications or requirements that may need to be incorporated into the Prescribed Instruments under the Nutrient Management Act to ensure the activities they regulate cease to be or never become significant drinking water threats. However, nothing in this policy grants the Risk Management Official authority to specify requirements for a prescribed instrument issued under the Nutrient Management Act, or where a person is seeking an exemption from a risk management plan under section 61 of O.Reg 287/07.