Submit Component Only Permit Application to OSSO

Complete and submit the application form

Please note that an official application in triplicate is required and must include one of the following with the property’s legal description:

• Tax Assessment
• Title Deed first page
• Survey/eMAP
• GeoOttawa property details

Inspector Reviews Application

An inspector from the Ottawa Septic System Office will review the application. Response time is 5 to 10 business days if all required information has been provided. 

Application Approval

If approved, a permit is issued allowing alteration of the Septic System to begin.

• one copy goes to the city building services
• one copy is kept at the Ottawa Septic System Office
• one copy is for the applicant

Note: Part 8 Applications and their associated Permits are Non-Transferable and expire 12 months from date of approval

Installation of Septic System Component

Installation Inspection
(allow 3-5 working days)

Once the component is in place, but before it is covered by fill, an inspector must visit the site. To request an installation inspection, the following must be submitted in advance to the OSSO:

• “As-Built” drawing and components
• Receipt for replacement component

Final Grading Completed

Final grading Inspection
(allow 3-5 working days)

Prior to the final grading inspection and issuing of the Certificate of Completion, the following must be completed:

• Septic bed and tank must be covered with backfill and topsoil which has been properly graded. This means all run off is directed away from the bed and a sufficient amount of cover over the distribution system has been applied as per the Ontario Building code.
• To allow verification of the bed cover, three holes from an outside corner to another (in diagonal) must be provided. The openings must expose the geotextile or paper on top of the distribution pipes and the four corners of the bed must be staked.
• Mantle (if required) must be in place and all conditions of the approved Sewage System application must be met.
• Electrical and alarms must be operational and an ESA permit number is required (if applicable). Note: Where applicable it is best practice to install any electrical or alarms on the exterior of the dwelling or provide a disconnect to ensure the safety of those conducting maintenance on pumps or advanced treatment units. Once this inspection and the conditions are met, a Certificate of Completion will be issued. This certificate means that the completed installation has progressed through the inspection cycle and the septic system can now be used. This document is required to obtain an occupancy permit of a dwelling. Some systems may require an additional maintenance contract agreement.

Certificate of Completion is Issued

Once the final grading inspection is complete and approved, Ottawa Septic System Office will issue a Certificate of Completion which will be available by email to the homeowner upon request.

Note: Septic components can only be installed by a contractor licensed and registered with the Ministry of Municipal Affairs and Housing (MMAH) as an installer under Part 8 of the Ontario Building Code or the property owner themselves. This excludes systems which include an advanced treatment unit which can only be installed by a licensed installer.