Royal Center, IN

Combined Sewer Overflow Long Term Control Plan, Phase 2 – CSO Basins & WWTP Improvements

The scope of the project included improvements to address the Town’s combined sewer overflows from their collection system into the receiving stream (Frederick’s Ditch) in accordance with the Town’s approved Long Term Control Plan with IDEM.  

The detailed scope of work for the project included the following:

• Extending a new 30” sewer from the existing diversion structure to the proposed CSO pump station
• A new CSO influent pumping station to pump the CSO flows to the proposed flow equalization basin (FEB)
• A new CSO screening structure with mechanical screen
• Installation of a flow equalization basin (FEB) with a capacity of 310,000 gallons with concrete bottom for sediment removal
• Installation of a settling and disinfection basin with a capacity of 700,000 gallons
• Chlorination/dechlorination system with metering pumps, piping, and chemical storage tanks
• Installation of an FEB drain to convey flows from the FEB to the WWTP
• A new underdrain/stormwater pump station to pump groundwater and site stormwater to Frederick’s Ditch
• A chemical/electrical building
• A non-potable water system
• Electrical and controls improvements

The project was funded by grants & loans from USDA – Rural Development and a construction grant from the Office of Community and Rural Affairs (OCRA). Construction cost was approximately $3,700,000.