Longwood (Scots Plain) Subdivision Sanitary Sewer Cleanout & Rehabilitation

Project Timeline

This project will take place from March to late October 2025, pending weather and unforeseen circumstances. Crews will generally work Monday – Friday from 7 a.m. – 3:30 p.m. Occasionally it may be necessary for work to continue beyond 3:30 p.m.

Project Benefits

• Reliability for sanitary service – As part of Naperville’s commitment to providing services that allow for a high quality of life, this project will clean out and improve the structural integrity and reliability of sanitary sewers.
• Improved sanitary sewer system performance – The CIPP method will create a new pipe inside the old pipe, improving the flow of wastewater and reducing the risk of clogs and backups.
• Reduced risk of sewer backups and overflows – A clogged or damaged sewer lateral can lead to sewer backups and overflows. It can include flooding, property damage, and health hazards. Cleaning and rehabilitating a sewer lateral can help to prevent these problems from occurring.
• Reduced maintenance costs – Cleaning and rehabilitating a sewer lateral can help to reduce maintenance costs.
• Improved environmental quality – The CIPP method is a trenchless method, which means that there is minimal excavation, causing less disruption to the environment and pollution from construction.

Construction Impact

During the rehabilitation process, crews will need to access the sanitary sewer manholes located on the property. Residents will be given advance notice and crews will communicate what residents can expect and how to prepare for work on the property. This may result in temporary inconveniences such as, but not limited to:

• Crews entering backyards
• Crews asking residents to clear driveways to allow vehicles or equipment to get through
• Fence panels may be removed and replaced to let equipment pass through. If this is necessary, PPI will be responsible for removing/replacing fence panels. The crew will take before and after photos to replace fence panels as they were before removal.
• Leaving equipment in a yard overnight

Traffic Impact

This project is expected to have minimal traffic impacts. Streets in the area will remain open throughout the project’s duration. Crews will do their best to minimize the impact of this work on traffic, but residents may experience temporary delays when moving through the construction zone.

Water Service Impact

Water will not be turned off for this project. Additionally, there will be no water service impact except on the day when the crews install the new pipe liner. On installation day, PPI will ask some residents not to use water from sinks, bathrooms, laundry, dishes or drains for up to four hours. This is because the water could interfere with the liner installation process. PPI will also ask residents to make sure there is water in all the floor drains to prevent the possibility of sewer gas and odors from entering the home. Door hangers will be posted 24 hours before the lining is installed and will contain additional information.

Project Phases

Phase one: Locate the sewer lateral.

• Crews will use a camera from the sewer main to locate and investigate the sewer lateral.
• A white stake or a small, spray-painted square will mark the cleanout's location.
• In most cases, crews locate the sewer lateral from outside the home.
• If the sewer lateral cannot be located outside, PPI and a City representative will need to go inside the home for approximately 15-20 minutes. If an indoor locate is needed, the resident will be informed in advance.

Phase two: Install the cleanout.

• A high-pressure vacuum truck will use water excavation to break ground and expose the lateral.
• Crews will install the cleanout and inspect it for leaks.
• After crews backfill the trench, a 4- or 6-inch PVC cleanout will be visible at grade.
• If workers install the cleanout within a sidewalk, crews will cover it with a cast iron "mini manhole" surrounded by cold patches (i.e., temporary asphalt).
• The City of Naperville will rehabilitate any disrupted sidewalk squares or landscape. 

Phase three: Inspect and clean the lateral.

• Crews will inspect the lateral and clean off all tree roots and other blockages using the cleanout.
• PPI will then retrieve an accurate measurement for the liner installation.

Phase four: Install the liner.

• Crews will prepare and install the liner using the cleanout and public sewer main, which can take up to four hours.