The policy applies in WHPA-A and WHPA-B where the handling and storage of a dense non-aqueous phase liquid (DNAPL) would be a significant drinking water threat (future activity).

The handling and storage of a dense non-aqueous phase liquid (DNAPL) shall be prohibited where the total quantity of liquid product(s) is greater than 25 litres and contains any amount of any of the following:

Dioxane-1,4; or
Polycyclic Aromatic Hydrocarbons (PAHs); or
Tetrachloroethylene (PCE); or
Trichloroethylene or another DNAPL that could degrade to Trichloroethylene; or
Vinyl chloride or another DNAPL that could degrade to vinyl chloride.

Therefore, the handling and storage of a dense non-aqueous phase liquid (DNAPL) is designated for the purposes of s.57 of the Clean Water Act.

Monitoring policy MP-23 applies.

MP-23: The Risk Management Official shall, by February 1 each year, provide to the local Source Protection Authority a summary report for the preceding calendar year that gives information on the number of violations.