Caldwell WWTP Filter Building

Construct a new tertiary gravity Filter Building, new Secondary Effluent Pump Station, and Utility Water/Backwash Pump Station to expand plant treatment 8.5 MGD. Project includes yard piping, site improvements, landscaping, electrical, instrumentation and controls, testing, commissioning and startup, demolition of existing infrastructure, dewatering, excavation, backfill and earthwork.

  • Location: Caldwell, Idaho
  • Cost: $12,337,260
  • Owner: City of Caldwell
  • Designer: Bowen & Collins Associates
  • Construction Period: 12/2017 - 11/2019