ARNOLD WWTF PHASE I IMPROVEMENTS PROJECT

The Calaveras County Water District is seeking bids for the Arnold WWTF Phase I Improvements Project. The project involves upgrading the existing wastewater treatment process and replacing the electrical and control system for the facility. The work includes adding a new secondary clarifier, new effluent pump, new metering and flow splitting structures, replacement of the Return Activated Sludge and Waste Activated Sludge (RAS/WAS) pump station, and other associated improvements. The project requires careful sequencing and coordination to maintain existing facility operations and avoid unplanned interruptions. Some key aspects of the project include: * Upgrading the existing wastewater treatment process * Replacing the electrical and control system for the facility * Adding a new secondary clarifier and new effluent pump * Replacing the RAS/WAS pump station * Making associated improvements to yard piping, grading, paving, power and control conduit and wiring, instrumentation, and PLC/SCADA controls * Maintaining existing facility operations and avoiding unplanned interruptions during construction