Where the application of road salt is, or would be, a moderate or low drinking water threat, the Ministry of the Environment, Conservation and Parks in consultation with other provincial ministries and municipal associations should promote best management practices for the application of road salt, to protect sources of municipal drinking water in any of the following areas:

 WHPA-A (VS = 10) (existing, future); or
 WHPA-B (VS ≤ 10) (existing, future); or
 WHPA-C (existing, future); or
 WHPA-D (existing, future); or
 WHPA-E (VS ≥ 4.5 and <9) (existing, future); or
 HVA (existing, future).

N/A