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Plumbing & Septic

Obtaining permits for plumbing and septic (onsite sewage) systems is essential for health and safety. Improper hook up of these systems can result in dangerous gases escaping as well as contamination of drinking water, putting you and your family's health in jeopardy. 

Plumbing and septic system installations are mandatory under the Ontario Building Code. No part of an installation is to be enclosed without inspection and approval of the Plumbing or Onsite Sewage Inspector. 

Applications and Permits 

Effective July 1, 2015, Northumberland County will manage plumbing inspections for seven member municipalities, and septic system inspections for six member municipalities of the County.   

For plumbing permit applications:

For septic permit applications:

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