DESCRIPTION:  This project primarily replaced the old UV disinfection equipment and controls with new equipment and controls.  Other assets in the UV process area were also replaced, including the Class 3 water reuse pump station with the addition of a hydropneumatic tank, the crane structure and hoist, influent gates, the motor control center and its associated programmable logic controller, process control instrumentation, and various other electrical and SCADA upgrades.

JUSTIFICATION:  The old UV disinfection system was installed in 1994, was 28 years old, and had reached the end of its useful service life.  The equipment had reached the end of its useful service life, used a substantial amount of electrical energy, was not operated automatically, could not be monitored remotely, had no automatic sleeve wiping system, lacked instrumentation to measure transmittance, and in general required frequent maintenance with high costs associated.  The 2011 Wastewater Treatment Plant Systems Reliability Evaluation recommended that the equipment and controls be replaced.

TOTAL PROJECT COST:  $5,735,529.31

CONSTRUCTION COMPLETION:  December 2023