Wellington’s potable water system is comprised of 18 existing raw water wells and at least 6 future wells are planned. The raw water from the surficial aquifer is pumped to through approximately 14.5 miles of raw water main pipe to a 12.3 million gallon per day water treatment facility, where the water is treated to meet all regulatory requirements for potable water. The treated water is stored in 6 ground storage tanks with a total 8.25 million gallon per day capacity, and is pumped from the tanks at the water treatment plant and two offsite booster stations through the potable water transmission and distribution system to Wellington water customers. Wellington’s water transmission and distribution system serves roughly 21,000 customers and includes 15 miles of transmission main, 305 miles of distribution water main, approximately 5800 valves, and 2400 fire hydrants.  

The water treatment plant has been undergoing a phased upgrade and expansion program since 2018, known as the Membrane Master Plan. The Membrane Master Plan is a strategic phased plan for a full replacement of all lime softening treatment with nanofiltration membrane treatment. The Plan was designed to ensure future regulatory compliance for PFAS and other contaminants of emerging concern. Nanofiltration membrane treatment technology is an EPA “best available technology” for the removal of PFAS compounds. Between 2020 and 2026, the Utility Department completed the construction of 5.4 million gallons per day of new membrane treatment capacity. The Utility Department Capital Plan includes the construction of additional membrane expansion projects, with the goal of fully replacing all lime treatment and transitioning to 100% membrane treatment.

The wastewater system includes approximately 175 miles of gravity collection pipe, 108 lift stations, approximately 61 miles of force main pipe, a 6.5 million gallons per day wastewater treatment facility and deep injection well disposal system, a reclaimed system providing irrigation water to public parks and medians, and Peaceful Waters Sanctuary, created wetlands which are hydrated with secondary wastewater effluent. Recent improvements include significant rehabilitation projects for the various lift stations, the South Shore Force main replacement program, replacements of wastewater treatment plant blowers and electrical system, replacement of the plant PLC and control system, the construction of an anerobic selector to optimize the treatment process.