Fox Metro Water Reclamation District has won the Fox Valley Section of the Chicago Chapter of the American Public Works Association (APWA) award for the implementation of Phase 2 Program of the CSO Long Term Control Plan. In addition, Deuchler Engineering Corporation has been recognized with an Honor Award by the Illinois Section of the American Council of Engineering Companies for the design of the Phase 2 Program.
Four goals were identified while developing the CSO Long Term Control Plan (LTCP) for Fox Metro Water Reclamation District (FMWRD): replacing aging infrastructure, reducing combined sewer overflows, meeting phosphorus removal requirements, and providing capacity for an increasing population. A six-phase implementation program was developed consisting of multiple phases with multiple contracts. Each phase of the program had to be carefully coordinated to achieve the defining goals of the CSO LTCP while maintaining existing plant operations and NPDES requirements.
The three contracts of Phase 1 laid the foundation for future phases. The cornerstone of the CSO LTCP was Phase 2 which included three contracts totaling close to $100 million. The Waubonsie Interceptor Contract included a junction box equipped with automated gates for scalping an existing 54-inch interceptor and a 36-inch gravity sewer across the Fox River. The South Facility Contract included a new 6 MGD treatment facility consisting of a headworks, primary clarifiers and pumping station, a biological nutrient removal process, and a thickening building. The North Facility Contract included modifications to existing processes to achieve phosphorus removal.
The measurable results of the program include:
- A 38% reduction is solids disposal
- A reduction in CSO’s to less than 1 per year
- Energy intensity reduction of 40%
- Meeting effluent total phosphorus limits a decade earlier than required.
The success of the implementation of Phase 1 and Phase 2 of the CSO LTCP can be attributed to public engagement during the development of the LTCP; and, close collaboration and teamwork between FMWRD, Deuchler Engineering Corporation, subconsultants, and multiple contractors