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WRF Tertiary Treatment Improvements – Post Falls, ID

Electrical and Control Systems Upgrades at Water Reclamation Facility

J-U-B’s Electrical Engineering Group provided electrical and control systems design and construction management services for upgrades and technological improvements to the City’s regional Water Reclamation Facility (WRF). Working with J-U-B’s Water Treatment Group, the project delivered a comprehensive suite of improvements across the facility.

Scope of Work and Key Facility Enhancements

The project included:

  • New 2,000 ampere utility service with 400KW parallel standby generators, including provisions for a third generator and a bypass isolation automatic transfer switch

  • New 1.63 MGD Wigen membrane filtration system and building, featuring:

    • Networked motor control system

    • Cable tray distribution

    • Vendor PLC and Plant PLC integration, control, and data sharing

  • New secondary effluent intermediate pump station

  • New rapid mix, flocculation, and plate settler tertiary clarification system

  • New plant drain pump station no. 2

  • New building for a Xylem UV disinfection system, including utility water pumping

  • Expansion of the duct bank system

  • Upgrade and expansion of the facility’s network and PLC control systems

  • Factory acceptance testing of all control equipment and startup assistance

  • Conversion of the existing Intouch Wonderware operator interface to Inductive Automation Ignition

  • Equipment modifications and additions to oxidation ditches and nutrient reduction equipment in oxidation ditches 5 and 6

  • New secondary clarifier no. 8 and RAS pumping

  • Site, yard piping, and other electrical system improvements

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