Policy Text:
1) Discharge, including infiltration, from a stormwater management facility shall be prohibited into an area where the discharge would be a significant drinking water threat in the following area:
WHPA-A (future).
2) Where the discharge from a stormwater management facility is in an area where the activity is, or would be, a significant drinking water threat, the Environmental Compliance Approval that governs the activity shall be reviewed or established to ensure appropriate terms and conditions are included so that the activity ceases to be, or does not become, a significant drinking water threat in the following areas:
WHPA-A (existing); or
WHPA-B (VS = 10) (existing, future); or
WHPA-E (VS = 8) (existing, future); or
the remainder of an Issue Contributing Area for Nitrates, Pathogens or Chloride (existing, future).
Not limiting any other conditions to be included in the Environmental Compliance Approval, the Issuing Director should include the following conditions, where possible:
no stormwater is discharged from the pond into a WHPA-E where it would be classified as a significant drinking water threat;
existing infiltration ponds are lined to prevent infiltration of contaminants; and
in an Issue Contributing Area for Chloride, require actions to reduce salt loading into the pond from upstream lands where the application of road salt occurs.
Timelines:
T-1: Prescribed Instruments (existing) shall be reviewed (and amended, as necessary) within 3 years of the date the Source Protection Plan takes effect, or such other date as the Director determines.
T-3: The relevant Ministry shall comply with the Prescribed Instrument policy (future) immediately upon the date the Source Protection Plan takes effect.