In areas where on-site sewage system are a significant drinking water threat as described in Appendix B, the Principal Authorities shall establish a procedure to ensure that their review under the Ontario Building Code of redevelopment or renovation proposals using existing systems uses well-documented technical information to determine if the current system is adequate. The procedure should involve the careful consideration of such factors as depth to water table, soil type, size and age of system and lot size. The procedure must be established within 6 months from the date the Source Protection Plan takes effect.

MON-5-LB Redevelopment / Renovation Proposals
Within six months of the Source Protection Plan taking effect, the Principal Authorities shall provide the Source Protection Authority with a report outlining the procedures that will be followed to ensure existing on-site sewage systems (located where they are a significant threat as described in Appendix B) are adequate to service a proposed redevelopment or renovation project. New approval procedures shall include adding the Source Protection Authority to the distribution list when approvals or decisions are issued to keep the Source Protection Authority informed on an ongoing basis regarding redevelopment or renovation proposals using existing systems.