GNHWPCA Pipe Lining Program
Pipe lining is a trenchless rehabilitation process used to repair existing pipelines. Benefits include:
- pipes can be rehabilitated without disturbing the surrounding neighborhoods and businesses,
- lining is less expensive than replacing the pipe,
- it allows for increased sewer flow capacity.
- the process can be completed in one to three days.
Prior to lining the existing sewer, crews clean the pipe using high pressure water hoses and video cameras to inspect the pipe condition. They may also conduct dye testing to confirm connections between buildings and sewers. As such, residents may see activities related to the sewer relining for several weeks leading
up to the actual lining.
Notices will be provided to residences and establishments in advance of any sewer lining work on their street. Notices will be provided by the GNHWPCA’s contractor both 10 days prior to and 24 hours prior to the conduct of the expected work. Click the links on the right to see sample copy of the 10 day and 24 hour notices.