Sewer Operations: Maintaining the System

The City's storm and sanitary sewers need on-going inspection and maintenance to ensure that they work properly, and continue to protect the health and property of the public. City staff  assess and respond to problems through long-term monitoring, computer modeling, video and sonar inspection, and information provided by the public.

Private Drain Connection Relining

In April 2010 Sewer Operations began lining private drain connections (PDCs) where possible instead of excavating the sewer line. So now instead of this: 

You might see this:

What a difference that makes on a street! No ripped up road, sidewalks, lawns. No closed roads. The crew completes its work in half a day versus the 1-3 days that it would take to dig the PDC up. Although not all PDCs can be lined a large percentage can. Since implementing the PDC lining program the City has been able to reduce the average cost of a PDC replacement by 20%. This savings is passed along to the property owner and to the citizens of London.