They say Chemours needs to connect them with city water instead:
Two residents participating in a pilot study that is testing whether water filter systems can remove GenX and similar contaminants say they prefer municipal water lines. The residents — Mike Watters and Fran Minshew — said they made the decision after seeing test results Chemours sent to the state Department of Environmental Quality. Their homes are among six with the granular-activated carbon filtration systems.
Chemours has offered to install the filter systems at homes with wells that have GenX levels above the state’s provisional health goal for the compound. Thus far, the state has said the filters would not be approved as a long-term solution.
This is (of course) typical of how most private corporations approach remedial actions when they contaminate water wells. Trying to avoid the expense of running water lines to these people, they use these on-site "fixes" as a test program, and they get to run the tests. When have you ever heard one of these companies say, "Oh, this is not working like we'd hoped."? Exactly, never. And these folks are also worried about continued support from Chemours going down the road, because apparently the filtration systems need a lot of maintenance: