Nancy Smith, airport manager, told the Nantucket Memorial Airport Commission that state regulators had visited the airport and that the meeting produced clarified expectations but also a request for additional testing.

The airport's environmental consultant reported that MassDEP spoke positively about the airport's laboratory method, EPA Method 1633, which the consultant said "yields more analytes, and so it's more susceptible to that chemical fingerprinting." Smith said MassDEP had not understood that many wells had been sampled multiple times; MassDEP asked the airport to re-sample wells that had only been tested once, because "it has been about four years since many of those had been last sampled," Smith said.

Commissioners were told Weston Solutions, the airport's licensed site professional (LSP) contractor, is drafting a response to the MassDEP audit letter and will transmit it within one to two weeks. The airport has installed monitoring wells near Statue Park to better define the contamination boundary and plans a drinking-water sampling round on May 21 that will include the fuel-farm treatment system.

Smith said the airport has taken a conservative approach at the boundary line, arranging connections to municipal water for homes on the line. Six homes had received bottled water; three of those homes were recently connected to municipal water. One homeowner asked for bottled water to continue through the summer and the airport agreed to provide it while the owner remains uncertain.

During commissioners' questioning, Cameron (role not specified in the transcript) clarified that MassDEP staff spent a full day on-site touring locations in the phase 2 report, meeting with airport staff and consultants and reviewing maps and sample records. Cameron said, "they did not take samples themselves, but we went through everything that we had accomplished independently." He described the site tour as "a really fruitful conversation" and said the airport adequately demonstrated the work completed and commitments to remediation.

No formal motion or vote was recorded on the PFOS item at the meeting. Weston Solutions' response to the audit letter and the requested re-sampling are pending actions described on the record.

Next steps noted on the record include the airport sending Weston's response to MassDEP in the coming one to two weeks, installing new monitoring wells at Statue Park, and conducting the May 21 drinking-water sampling.

The commission later moved into executive session to discuss legal strategy related to PFAS claims (see separate item).