For those areas within a wellhead protection area where the vulnerability score is 10, each municipality shall require all properties directly abutting an existing municipal sanitary sewer to be connected to that sewer, and that any existing private septic systems on those lots which is a significant drinking water threat, be decommissioned to the satisfaction of the agency having jurisdiction over approval of septic systems, within the earlier of:
a) 3 years or,
b) within 2 years of the time of sale

Policy P.12.10 – Monitoring Policy for Policies where a Municipality or Principal Authority is named as an Implementing Body
By February 01, 2016, and then thereafter annually by February 01, where a policy of this plan prescribes that a municipality or a principal authority shall undertake an implementing action, the municipality and the principal authority shall complete and submit to the Source Protection Authority, the monitoring report in a form to be established (this includes reporting from Risk Management Officials).