UPO5B 91st Avenue Waste Water Treatment Plant

Unified Plant Upgrade

Phoenix, AZ

The 91st Avenue WWTP is located on 560 acres,
with a current firm capacity of 204.5 mgd.

The plant is currently undergoing a series of
expansions and upgrades.

The UPO5B expansion project also includes
pump stations; main and secondary basins;
and odor control necessary for the treatment
of 40 mg of waste water per day.

General Contractor: McCarthy Construction