The City of South Bend was operating an aging pressure filtration plant. The Washington State Department of Health determined that the process was not achieving any disinfection/removal credit and deemed South Bend to be out of compliance with the Surface Water Treatment Rule.
South Bend hired Carollo to perform a pilot-testing program to evaluate low-pressure membrane filtration to meet the current and proposed future regulations. Following successful pilot testing and a subsequent predesign report, South Bend retained Carollo to provide planning, design, and construction services for a new 600-gpm microfiltration plant on a site adjacent to the its existing water treatment facility.
The new treatment plant processes include:
• Pre-filtration.
• A raw water pumping station.
• Skid-mounted microfiltration units.
• A CT basin and clearwell.
• A finished water pumping station.
This new plant will provide a multiple-barrier approach to treatment. Designed for a future expansion capacity of up to 900-gpm, the South Bend Water Treatment Plant will be the first municipal low-pressure membrane water treatment plant in the State of Washington. Carollo provided pilot testing, planning design, and construction services to the City of South Bend for the first low-pressure membrane water treatment plant in the State of Washington.
Carollo provided pilot testing, planning design, and construction services to the City of South Bend for the first low-pressure membrane water treatment plant in the State of Washington.