City Sewer Maintenance
What is the City's sanitary sewer maintenance responsibility?
The City is responsible for maintaining the sanitary sewer mains, located in the public Right-Of-Way (ROW) and ensuring access for private connections. In Minneapolis, most sanitary sewers run down the middle of the street.
How does Minneapolis inspect its sanitary sewers?
Sanitary sewers in Minneapolis are targeted for inspection by closed circuit TV once every 10 years. Emergency inspections are done as needed. Minneapolis Sewer Operations also inspects manholes and other components of the sanitary sewer system.
How often are the sanitary sewers cleaned?
Sanitary sewers are scheduled for cleaning every 8 to 24 months, depending on pipe size and method of cleaning. Emergency back-up calls are cleaned at time of the emergency. Areas that have a history of heavy root infestation or higher levels of Fat, Oil & Grease (FOG) may require a higher level of maintenance and are cleaned on a more frequent basis. These areas are called Hot Spots. Sanitary sewers are cleaned using 'jet/vac' trucks that use high-pressure jets using procedures called rodding or discing.
How does Minneapolis eliminate infiltration/inflow problems in the sanitary sewer system?
During the televising procedure, Minneapolis Sewer Operations records cracks in the sanitary sewer pipes that might contribute to Infiltration / Inflow (also known as I & I).
Is there information available on the history or cleaning frequency of a sewer line?
Sewer Maintenance maintains a scheduling system that can provide historical information on the last time a sewer line was cleaned, as well as the frequency of the cleaning schedule.
What is the City's responsibility regarding private sewer laterals?
The property owner is responsible for maintaining adequate sewage flow to and through your sanitary sewer lateral (also called a sanitary service) to the City's sanitary sewer main. Even though part of your sewer lateral is in the Public ROW, it extends all the way to the sanitary main, and is the responsibility of the property owner.
When a failure or blockage of a sanitary sewer lateral occurs, Minneapolis Sewer Operations will verify the sewer main is open and sewage is flowing. If the sewer main is found to be clear, it is the responsibility of the property owner to call a licensed plumber or drain cleaning service to correct the problem.
If you have additional questions, contact the Sewer and Storm Drain Hotline at (612) 673-5625.
Last updated Feb 17, 2017