Fauquier’s 2026 capital plan sets $4.36 million for Marshall water-supply expansion and PFAS compliance

Fauquier County’s FY 2026-2030 capital plan assigns more than $5.7 million to water and wastewater projects serving Marshall, with the largest investment aimed at expanding the Cunningham Farm water supply.

The plan lists $4.355 million for Cunningham Farm Water Supply Phase 2. It also sets aside $580,000 for PFAS compliance in Marshall and $300,000 for GreenSand Filter No. 2 at the Route 17/66 water-treatment plant.

Together, the seven listed projects total $5.71 million. The amounts are budget allocations in the capital plan, not confirmations that the work has been completed or that all projects are under construction.

What the plan includes

Beyond the three largest projects, the plan includes $200,000 for Marshall Interstate 66 sewer upgrades and Cunningham sewage-pump-station reimbursements.

It also provides $100,000 for a Marshall water master plan and another $100,000 for a Marshall wastewater master plan. A further $75,000 is assigned to rehabilitating aeration tanks at the Marshall wastewater-treatment plant.

The water projects are assigned to the Marshall service district. The major projects, including Cunningham Farm Water Supply Phase 2 and PFAS compliance, are also assigned to the Marshall magisterial district.

What the investment could mean

The projects cover several parts of the local utility system: adding water-supply capacity, improving treatment, addressing PFAS compliance, planning future system needs and repairing wastewater infrastructure.

That combination could improve system reliability and regulatory readiness and may support future residential or commercial capacity. The capital plan itself does not establish a connection to any particular development, however, and it does not set customer-rate changes.

PFAS refers to a group of human-made chemicals that can be subject to drinking-water regulations. The plan identifies funding for compliance, but it does not state final PFAS measurements or a compliance deadline in the listed project information.

Timeline and next steps

The spending is included in the county’s adopted five-year capital plan for fiscal years 2026 through 2030. The plan does not provide final engineering schedules, completion dates or the precise properties served by each project.

For Marshall customers, the immediate development is the county’s identification and budgeting of the work. The next practical milestones will depend on project design, implementation and construction schedules, which are not specified in the capital-plan listings.