Monday, March 18, 2024 | View in browser
Over the next few months, the City has contracted to rehabilitate a portion of its public combined sewer lines using the Cured-In-Place Pipe (CIPP) process. Sewer cleaning and televising will begin on March 25, and lining will commence in May, weather permitting. The work is anticipated to be completed by August 31.
Work process
During sewer rehabilitation, a liner is inserted into the public sewer to seal the building sewer service connection, preventing it from flowing into the public sewer. When the contractor is rehabilitating the sewer line in front of your building, please limit water usage by minimizing the use of bathroom facilities and refraining from doing laundry or washing dishes. Additionally, any sump pumpds connected to the combined sewer system should be disconnected during this period. Once the installation of the liner is completed, the contractor will reestablish the flow from the building sewer service to the public sewer.
The contractor will collaborate with area residents and businesses to minimize impacts and noise. Businesses will receive direct communication prior to lining to coordinate the work. A 10-day notice will be provided to area residents before the lining work begins. An additional notice will be placed on the front doors of the affected buildings, advising the occupants 24 hours in advance of the specific date and time when the sewer lining work will be performed, and the sewer service connection will be sealed. This work should take approximately 10 hours to complete. "No Parking" signs will be posted when rehabilitation work will restrict parking.
Locations of sewer lines
 Click to enlarge map.
Information on Styrene
The resins used in the lining process have been utilized in the fiberglass industry for years. These resins contain a chemical called styrene, which hardens when heated. Although styrene has an unpleasant odor, it is not dangerous at the levels at which people can detect it. If you smell the styrene while the contractor’s personnel are working in your area, do not be alarmed. An easy way to prevent the styrene odor from occurring in your building is to pour a gallon of water into each drain, particularly basement floor drains. This keeps the drain 'trap' full and prevents sewer gases from entering your building. Because the water in the drain traps evaporates over time, this practice should be done regularly.
Contractor
The contractor performing the work is National Power Rodding Corp.
City monitoring
This project will be monitored by the City’s Capital Planning & Engineering Bureau. For questions or concerns, contact James Knuth at 847-448-8280 or jknuth@cityofevanston.org.
View the Construction Notification Newsletter.
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