Forsyth County opens $21 million water plant expansion, boosts capacity
Forsyth County added 7 million gallons a day of peak treatment capacity at its north Forsyth water plant, a move meant to keep pace with surging demand.
Forsyth County has expanded its water treatment plant at 2255 Antioch Road in north Forsyth, adding capacity that county leaders say will help keep taps running as the population and housing stock continue to climb. The $21 million upgrade raises the plant’s peak treatment capacity from 33 million gallons a day to 40 million gallons a day, a 21% increase in the system’s highest output.
County officials marked the completion of the project with a ribbon-cutting ceremony Friday, June 12, at 2 p.m. The work was funded through the Forsyth County Department of Water & Sewer and built by PC Construction. Rather than a purely ceremonial milestone, the project signals how the county is trying to keep its utility network ahead of growth in one of metro Atlanta’s fastest-expanding counties.
The plant now uses a mix of conventional, membrane and ozone filtration systems, and the county says it typically produces more than 14 million gallons of clean drinking water each day. During a high-demand period in 2025, the facility produced 30 million gallons in a single day, a number that shows how quickly demand can rise when weather, growth and daily use all line up.
The upgrades also included a new flocculation and sedimentation basin, three new membrane trains, a sodium hydroxide storage tank, a 700-horsepower finished water pump, new sludge collection systems, a new baffle wall in the raw water tank and a new filter gallery enclosure. Together, those changes are aimed at strengthening the plant’s ability to treat water reliably under heavier loads, especially as more homes and businesses come online across the county.
Forsyth County’s population estimate rose from 251,285 in 2020 to 282,805 in 2025, according to the U.S. Census Bureau, while housing units reached 98,879 in 2025. Against that backdrop, the plant expansion is more than a utility upgrade: it is one more indicator of how local government is trying to match infrastructure to growth before a shortage forces the issue.
The county also says the plant is capable of producing up to 40 million gallons of clean drinking water each day, and its 2025 water quality report says water from residents’ taps met EPA and Georgia standards in 2024. For Forsyth households, the practical takeaway is straightforward: more treatment capacity, more room for peak demand and a stronger buffer as the county keeps adding people, rooftops and commercial development.
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