Built in 1967, Delta Township’s Wastewater Treatment Plant, which provides sewer service to 9,497 residential customers, 669 commercial customers and 37 industrial customers, went through two previous expansions in 1972 and 1986. Current work on the 55-year-old facility is beginning four years after township staff and officials started evaluating the municipality’s future water treatment capacity needs. The overhaul will, in part, allow the facility to meet new water treatment standards put in place by the Michigan Department of Environment, Great Lakes and Energy. The rebuilt facility, which will be located at the same property as the existing plant, will also increase sewage treatment capacity from 6 million gallons to 8 million gallons per day.
The work consists of the expansion of the Township’s Wastewater Treatment Plant including construction of a new Headworks Building with mechanical bar screens and raw sewage pumping, conversion of existing aerated grit removal system to vortex system, construction of new aeration tanks with fine pore diffusers, construction of a new blower and RAS pumping building with high speed turbo blowers and return activated sludge pumping, construction of new final clarifier tanks, construction of new yard piping, installation of a new odor control system, improvements to incoming electrical distribution system and installation of standby generator, architectural and concrete restoration, construction of a new Control Building, as well as electrical and instrumentation improvements.