To ensure any Future handling and storage of a dense non-aqueous phase liquid for industrial, commercial, institutional or agricultural purposes within a WHPA-B, C or TCE ICA, never becomes a significant drinking water threat, where this activity would be a significant drinking water threat, this activity shall be designated for the purpose of Section 58 of the CWA and a Risk Management Plan shall be required where the following apply:

a. Any quantity of dense non-aqueous phase liquid in a WHPA-B with a vulnerability score 10, including within an ICA for trichloroethylene; or
b. Any quantity of the following chlorinated solvents in a WHPA-B or WHPA-C, with a vulnerability score < 10, including within an ICA for trichloroethylene, or within a WHPA-D in an ICA for trichloroethylene:
• Dioxane-1,4
• Tetrachloroethylene (PCE)
• Trichloroethylene or another DNAPL that could degrade to Trichloroethylene
• Vinyl chloride or another DNAPL that could degrade to vinyl chloride; or
c. 25 Litres or greater of Poly Aromatic Hydrocarbons (PAHs) in a WHPA-B or WHPA-C, with a vulnerability score < 10, including within an ICA for trichloroethylene, or within a WHPA-D in an ICA for trichloroethylene.

WC-CW-1.11: The Risk Management Official shall provide a report to the Source Protection Authority, by February 1st of each year, summarizing the actions taken by the Risk Management Official to implement the Source Protection Plan policies, in accordance with the Clean Water Act, 2006 and associated regulations.