Well and Septic















Source protection:

The Clean Water Act requires identifying threats to source water and creating a plan to address them. Conservation Authorities are working together to administer source protection locally. Source Protection Plans will contain policies to protect drinking water sources.

Two reports were published:

Comments received from various sources contain observation of interest to area residents.

Private Wells Source Protection policies must protect all wells, not just municipal wells. A municipal council or the Minister of the Environment can designate a cluster of private wells or intakes to be included in the source protection planning process. MOE is developing guidance to help municipalities identify which clusters, if any, a municipality may want to designate. The question of who pays to study such clusters has not been answered yet so municipalities have been advised by the MOE to wait to make this decision.

 Clusters of Private Wells The “Future: Protecting Other Systems” must be modified to remove reference to MOE advising municipalities to wait to designated clusters of private wells. This section will be removed in the Proposed ARs and captured in an Accompanying Document.

Cumulative Impacts of Development Is the impact of cumulative development considered a threat (e.g. subdivisions on private septic systems)? MOE did a hazard rating for all land use activities that involve a chemical or pathogen and that determined which are considered a significant drinking water threat in certain sections of a Wellhead Protection Area or Intake Protection Zone (depends on the vulnerability score). The threats that pertain to residential land uses are septic systems and home heating oil (furnace oil). In the Provincial Threats Tables these are only considered threats close to municipal wells, not intakes.

Transportation Corridors Greater clarity is required to explain why transportation corridors are not threats in this region. A discussion about spill response would be appropriate. This section will be revised to be more accurate in the Proposed ARs.


  • Increasing number of bedrooms
  • Add new plumbing fixtures to the dwelling unit
  • Exceeding 15% of the gross area of the dwelling units for proposed addition
  • Change in major occupancy
  • Change in occupant load
  • Installing a pool not meeting O.B.C. Regulation setback distances
  • Installing a deck not meeting O.B.C. Regulation setback distances

If you answered yes to any of the above, contact Ottawa Septic Office

Ottawa Septic System Office 1127 Mill Street Manotick, Ontario K4M 1A5 Phone: (613) 692-0160 or 1-800-459-5975 Fax: (613) 692-1507 http://www.rideauvalley.on.ca/septic/osso.htm

Review of the water, sanitary & storm rate structure – Details(docx)

English version, french version

Septic Systems – Q&A

Septic distance details

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