To ensure that any drinking water threat in the vicinity of a transport pathway ceases to be or will not become a significant drinking water threat; or that a transport pathway ceases to endanger the raw water supply of a drinking water system, municipalities shall give due consideration to enacting a municipal by-law regarding geothermal energy systems in a WHPA-A or WHPA-B vulnerable area (future activity).

The municipal by-law would:

1. prohibit the installation of vertical geothermal energy systems in WHPA-A; and
2. prohibit the installation of open loop geothermal systems (where water is pumped out and not re-circulated) in WHPA-A and WHPA-B; and
3. require that any drilling below the water table necessary for the installation of vertical geothermal systems in WHPA-B only be performed by a licensed well driller.

The process to enact the by-law should be initiated within three years of the effective date of the Source Protection Plan and the by-law enacted within five years of the effective date of the Source Protection Plan.

Monitoring policies MP-11, MP-12 and MP-19 apply.

MP-11: Municipalities shall, within 30 days following the passing of the by-law, provide a copy of the by-law to the Source Protection Authority.

MP-12: Municipalities shall, by February 15 each year, provide to the local Source Protection Authority, a summary report for the preceding calendar year that gives information on any violations, the number of occasions where enforcement action was taken and the result of the action.

MP-19: Municipalities shall, by February 15 each year, provide to the local Source Protection Authority a brief summary report for the preceding calendar year that gives information on the activities taken toward implementing the policy.