Sewer System Rehabilitation
Rehabilitation Projects done each Summer
Ground water infiltrates through defective joints, broken or cracked pipes, faulty connections and manhole sidewall seepage. As part of ongoing sanitary sewer improvement planning, DeKalb Sanitary District contracts each summer for a sanitary sewer reconstruction and rehabilitation project. Priorities for repairs to be done are set during review of the previous year's SSES inspection results. The repairs include:
- Manhole repairs
- Replacement of some sewer pipe sections
- Lining of sewer pipes
Types of Projects Done
Lining is the insertion of a special material inside the pipe to create a new watertight, smooth-surfaced, long-lasting pipe within the old sewer pipe.
Limitations on Water Use
Because the material used has to "cure," the reconstruction takes up to a 24-hour period to complete. During this time the sewer connection to your home or commercial establishment will be sealed off. If your sewer is directly affected, sewage from your home will remain in your service lateral and not be able to enter the public main. Because of this you may be asked refrain from doing laundry for 24 hours and to limit the use of your sink, shower and toilet facilities as much as possible.
Residents Will Be Notified
Not all the residents of a given block will be asked to limit their water use just because lining is happening near them. The only homes that need to do so are those few homes directly served by the pipes being lined. If this applies to you, you will receive a notice (usually in the form of a door hangar) telling you when this needs to begin. The contractor will notify you at least 24 hours before water conservation needs to begin. If you receive no notice, no change in water usage patterns is necessary.
What is That Smell?
There is a chemical odor to the lining material used. Smell should be limited to the out of doors. You should not notice it inside your home unless your windows are open.
To make sure you re not bothered by odors inside your house, be sure to pour a cup or two of water into drain that is not regularly used. This keeps the "trap" full of water and working as it should to prevent sewer gas and odors from coming into your home.
Keep Traps Working
The trap is meant to always be full of water. Its presence forces any gas into the vent stack so that it can be safely vented to the outside. Because the water evaporates when drains are not in use, they should be checked regularly and filled even when crews are not working in your neighborhood.
Manhole Repair and Replacement of Sewer Pipe
Rehabilitation work of this sort is called "spot repair," and locations are scattered. All or portions of a manhole might be replaced or realigned and resealed. A section of crushed or otherwise damaged sewer pipe might be dug up and replaced.
Crews in the Street
In most cases, the major impact will be on traffic. Our contractors are instructed to obey all City Ordinances in regard to safety and signage.
Please call the District at 815 758-3513 if you suffer or observe any problems.
Few Other Impacts on Residents
It is possible that one or two residences that empty into a section of sewer pipe that is being replaced will be asked by the contractor to cease or limit water usage for a short period of time. There is no way to anticipate this, but the contractor has been instructed to give homeowners notice as soon as possible.
If you are not contacted and requested to do so, there is no need to change your water usage patterns.
In areas of the District where there are many trees and bushes over or near sewer easements, root intrusion into the sanitary sewer collection system can be a real problem. Complete or partial blockage of the private house service laterals cause headaches for homeowners. Intrusion into the public system causes blockages that can affect many residents. Each summer some of the mains in these areas are treated to kill intruding roots. Throughout the year District crews use a root-cutter to clear away the plant life that threatens to stop the wastewater flow.