The Project consists of demolition of the existing twelve (12) West Tertiary Filter units and washwater
supply pumps, as well as constructing twelve (12) new filter units with new underdrains, media, air
assisted backwash, media retaining troughs and air supply piping and valves. Additionally, two (2)
variable frequency driven washwater supply pumps, magnetic flow meter and isolation valve will be
provided. Mechanical and electrical improvements related to the Project will be provided.