New Sewer Installations
Help with Planning
Local standards govern material specifications, installation and quality assurance testing requirements for any sanitary sewers that will be tributary to the District’s wastewater collection and treatment systems.
The District takes an active role before, during, and after the installation of new infrastructure in its facilities planning area. An initial consultation is without cost. Further plan review fees as established by Ordinance #496 (passed March 15, 2006) are assessed based on the size and complexity of the project.
Development and Capacity
The Sanitary District’s responsibility is to see that expansion does not negatively impact on either the collection system or the treatment plant so as to threaten the area’s water quality.
“P.E.” refers to “population equivalent.” One P.E. equals 100 gallons per day of water usage per person. Proposed new development is assessed on the basis of its proposed P.E. contribution to the sewer flow demands in the area. An Efficiency or Studio Apartment has a P.E. of 1, a one-bedroom Apartment is 1.5, a two or three-bedroom apartment is 3 and a private home is 3.5. A mobile home has a P.E. of 2.25.
Sewer Construction Permitting
Any new construction of sufficient P.E. requires Illinois Environmental Protection Agency Construction and Operation Permits. Part of the application process is the DeKalb Sanitary District’s input about its ability to handle the increased flow.
If an area already has as much population as the collection system and the treatment plant can handle, the DeKalb Sanitary District cannot approve the IEPA Construction Permit Application.
Specifications and Standards
To prevent inflow and infiltration problems tomorrow, the DeKalb Sanitary District maintains strict specifications and standards for the construction of all new private and public sanitary sewers.
Quality Assurance Testing
Quality of installations is also monitored by the District. Infrastructure that will endure and that will not create problems for local homeowners in the future is the goal. Plans must be submitted to and approved by the District before the granting of City of DeKalb building permits. The District offers the developer review comments throughout the design process to help them meet quality requirements.
During the construction phase, DeKalb Sanitary District personnel perform quality assurance testing of all new sewers to assure system integrity before allowing occupancy permits to be issued. “As-builts” are required at the completion of each project so that the location and details of all new infrastructure can be recorded in the mapping systems maintained jointly by the District and the City of DeKalb.
Reuse of Existing Laterals
If a sewer pipe no longer in use is sealed off, it becomes a source of ground water inflow into the sanitary system and increases the likelihood of sewer backups in the residences and businesses near it.
As part of any building demolition project, where the building discharged sanitary wastewater to the Sanitary District, the lateral or laterals must be located, marked and temporarily or permanently capped in a watertight manner.
If you are abandoning sewer laterals, call the District at 815 758-3513 for specifications on what to do and to schedule an inspection.
Conditions of Approval for Re-Use
District regulations allow the re-use of existing sewer laterals if they are found to be sound and in an acceptable condition.
Call the District at 815 758-3513 to schedule an inspection to assess the potential for re-use.
The Sanitary District will investigate each lateral and determine its integrity with a miniature television camera inspection. Its structural condition will be assessed by noting things like evidence of leakage (past or present), root intrusion, cracks or other infirmities anywhere along the lateral, up to and including the point of attachment to the public main.
Depending upon the condition of the sewer lateral, the District will instruct the property owner on how it may be reused or abandoned.
Abandonment of Septic Systems
District and County Health Department regulations require that a septic tank scheduled for abandonment be cleaned of sludge, the bottom perforated so as to permit adequate drainage and the tank then filled with gravel, sand or compacted dirt.
Planning to Handle Increasing Plant Loads
In 2007 the District completed and implemented its most recent Facility Plan. The plan is a “blueprint” for orchestrating DeKalb’s wastewater conveyance, treatment and water pollution control needs for the next 20 years. The rehabilitation, replacement and expansion of sewers and wastewater treatment facilities is a very expensive and time consuming effort. Because of this, the District has elected a phased approach for the Facility Plan’s capital improvements. What needs to be done and when we do it is determined primarily by facility age and antiquity, state and federal pollution control regulations and facility expansions to accommodate community growth.
Funding for Future Expansion
Each new residential or commercial development adds to the load on the treatment plant which has a finite capacity to treat sewage. When the amount of wastewater flowing into the plant exceeds its design capacity, the plant must be expanded. As developments on the edges of the District’s boundaries apply for annexation to the District and expand those boundaries, sanitary infrastructure must be expanded and enlarged.
Because of its responsibility to the future, the current Board of Trustees collects funds and sets them aside for future plant expansion needs. The money collected from connection fees is set aside to be used in expansion of the treatment plant. Annexation fees are applied towards the cost of expanding the collection infrastructure into new areas.