The county voted to participate in proposed settlements tied to PFAS contamination litigation and authorized the Water and Sewer director to execute settlement documents. County staff said prior litigation produced $4.5 million that was used for water‑system upgrades.

Officials said purchases from Cincinnati Water Works ended June 25, 2026; the county invested in softening facilities (about $40 million) and conveyance projects to move toward self‑sufficiency and potential wholesale water provision.

Commissioners voted to participate in proposed settlements within an MDL over aqueous film‑forming foam (PFAS contamination) and authorized the water‑department director to sign settlement documents; county staff clarified the case is multi‑defendant MDL litigation—not a class action.

Water department officials said PFAS treatment upgrades are complete and met regulatory requirements, described roughly $5 million in treatment upgrades funded in part by litigation recoveries and federal funds, and proposed drilling three wells and larger conveyance work to expand the north water plant from 9.7 to 17 MGD.

David Sanders, a Democratic candidate for State Senate and West Lafayette councilor, urged local action to defend aquifers and criticized state preemption; a resident warned that planned dairy expansion could withdraw up to 1,000,000 gallons per day from the local aquifer, linking it to fish kills.

Town officials raised enforcement challenges when mandatory water restrictions apply to town customers who live in the county; a county supervisor also presented a proposed Warren County Groundwater Protection Ordinance aimed at limiting large industrial/consumptive groundwater withdrawals and protecting private wells.