The official website of the City of London300 Dufferin Avenue519-661-CITY (2489)

What Is A PDC?

A Private Drain Connection (PDC) is the sewer pipe from your house to the City’s sewer main.  The PDC is typically located beneath your front lawn.

Who is Responsible for the PDC?

PDC LayoutThe property owner is financially responsible for the Private Drain Connection (PDC) from the house to the City’s main sewer; however, City staff must undertake the repair work within the right-of-way limits (from City main to property line).  The maintenance and replacement of the PDC within the private property limits can be done by any qualified contractor the property owner chooses.  The portion of the PDC on private property is sometimes referred to as the 'building sewer'.  Because the City cannot control how a property owner maintains their PDC (or does not maintain it), what they put down their drain, and the fact that it is truly for private use, it is the property owner's responsibility to repair the entire PDC.  The City is completely responsible for the main sewer that runs in front of your property, usually under the driven portion of the road.


Clean out in a basementWhat is a Cleanout and Where Do I Find It?

A cleanout is a direct access point to the PDC.  If there is a blockage in your PDC, the cleanout is a point of entry to try to free the blockage without digging up your front lawn.  Cleanouts in homes constructed within the last 45 years are usually located near the front of the house, under the basement floor, where the PDC exits the house (see image on the right).  The cleanout can also be located outside the home and may be buried.  Before installing a cleanout, check with the City's Environmental Programs and Customer Relations Division at 519-661-4570 to determine if a cleanout already exists.  Staff in this Division also have access to Building Control Division's records which may provide a location of a cleanout as well.  If a cleanout exists, information may be available on its location and size.


Last modified: