The following activities are designated for the purpose of Section 57 of the Clean Water Act, 2006 (prohibition) where the activity would be a significant drinking water threat:

the handling and storage of an organic solvent;
the non-residential handling and storage of dense non-aqueous phase liquids (DNAPLs); and
the management of runoff that contains chemicals used in the de-icing of aircraft.

This prohibition takes effect when the Source Protection Plan takes effect.

This policy is not intended to capture residential use of incidental volumes of DNAPLs

Note: Additional policies apply. See: MONITORING-1 and GENERAL-6.

MONITORING-1: Part IV Clean Water Act, 2006 tools (restricted land uses, Risk Management Plans and prohibition):
The Risk Management Official shall report annually by February 1st to the Source Protection Authority on the significant threat policies that designate an activity for the purpose of Section 58 (Risk Management Plans) or Section 57 (prohibition) of the Clean Water Act, 2006. This report will include the information required in Section 65 of Regulation 287/07 (information on the establishment and enforcement of Risk Management Plans, inspections and abatement measures in addition to descriptions of the administrative, enforcement and compliance results) related to the previous calendar year. Additionally, the Risk Management Official shall inform the Source Protection Authority of the method/procedure used to implement GENERAL-6 (restricted land uses).