Treatment Plant Rehabilitation

Estimated 20-Year Capital Investment: $121M

The Greater Peoria area is served by one wastewater treatment plant, which is located on Darst Street. 

The  treatment plant was built in the late 1920s and early 1930s.  While modifications and maintenance to the plant have occurred over the years, including installation of a modern enhanced biological phosphorous removal process and a full supervisory control and data acquisition (SCADA) system, the mere age of the plant alone will require an investment in a multi-year rehabilitation.

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The Treatment Plant Game Plan:

• ​Complete phase I study of nitrification/denitrification study to replace 1970's vintage rotating biological contactors, and engage top industrial customers to determine future needs in completing the study
• Complete phase I study of biosolids dewatering equipment to replace existing centrifuge technology
• Utilize advanced asset management techniques by standing up computerized maintenance management system
• Based on output from the advanced asset management system, comprehensive analytics on entirety of assets to refine mid-term and long-term capital priorities
• Continue innovation partnerships with private industry and academia

FY25 Treatment Plant Projects

Levee design finalization - click here for more information
​Automation Phase I - Critical PLC replacements, SCADA upgrade, VFD installations
Transformer replacements
Meter M3 replacement
Drying bed modifications

WAS/RAS Pipe rehabilitation - phase II
FOG receiving facility
Screw pump gear box rebuilds
Effluent screw pump painting
Digester boiler replacements

Sustainability Projects

FOG Processing Center:
Waste-to-resource
Operational cost savings

Renewable Natural Gas:
Public-private partnership
Waste-to-resource
​Emissions reduction

Solar:
​6.4M kWh (AC) annual production
20-year PPA, $0.035/kWh maximum