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Water and sewer staff outline PFOS planning, meter replacements and 7.5M-gallon storage
Summary
Concord's water & sewer superintendent reported on system scale (124 miles of mains, 1,339 hydrants, 7.5 million gallons of storage), recent meter replacements and a multi‑year plan to pilot PFOS treatment plants at two wells and upgrade critical controls and cybersecurity.
Darren LaFlallum, who heads Concord’s water and sewer operations, told the Finance Committee the system serves most buildings in town and has substantial infrastructure to maintain.
"Treated drinking water is stored in 2 water storage reservoirs with a combined capacity of 7,500,000 gallons," LaFlallum said, describing the supply configuration (a surface-water source with a filtration waiver plus six groundwater wells) and noting the division’s recent accomplishments: replacement of about 28% of the town’s 5,500 water meters, a lead-service-line inventory and emergency well repairs. He said Phase 2 of a camera inspection program will cover the next two‑thirds of the sewer collection mains this fall.
For FY27, LaFlallum said priorities include replacing clarifier drives, piloting design and testing for two PFOS treatment plants (one at a cargo well and another at a second division well), rehabilitating groundwater wells and SCADA cybersecurity upgrades. The department is also planning to increase the pace of meter replacements using outside contractors.
