Future handling and storage of dense non-aqueous phase liquids (DNAPLs), through all phases of its life cycle including disposal, shall be managed so that the activity ceases to 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 where, in the opinion of the Risk Management Official, substantial quantities and concentrations not typical of household use would be handled or stored, and where this activity would be a significant drinking water threat other than in Wellhead Protection Area (WHPA) A or B with a vulnerability score of 10.

5.10: The Risk Management Official shall provide a report to the Source
Protection Authority, by February 1 of each year, summarizing the actions
taken by the Risk Management Official and the Risk Management
Inspector(s). The information that shall be contained in this report is
outlined within Sec. 65 (1) of O. Reg. 287/07.