For a new onsite sewage system or onsite sewage system holding tank regulated under the Ontario Building Code Act, with the exception of:

a. a new onsite sewage system or onsite sewage system holding tank regulated under the Ontario Building Code Act that is required for a municipal water supply well; or
b. a new onsite sewage system or onsite sewage system holding tanks regulated under the Ontario Building Code Act that is located within an ICA, but outside of a WHPA-A or WHPA-B with a vulnerability score of 10, where these activities would be significant drinking water threats, the Area Municipalities shall amend their respective Zoning By-laws to prohibit uses, buildings and/or structures that would require a new onsite sewage system or onsite sewage system holding tank to be located within such areas, to ensure these activities never become significant drinking water threats.

Where this Source Protection Plan requires the County or Area Municipality to amend their Official Plan and/or Zoning By-law and provide confirmation of such amendments to the Source Protection Authority, they shall provide a copy of such compliance within 30 days of adoption of the amendment(s) by County and/or Area Municipal Council or, where the matter has been appealed to the Ontario Municipal Board, the date of their decision to approve.