According to this news report:

The City of Mansfield and the Mansfield Ontario Richland County Health Department are making progress in their efforts to protect the homeowners on Twin Lakes Drive from the harmful effects of the industrial chemical Trichloroethylene known as TCE which was found in the residents well water.

Health Department Commissioner Stan Saalman met with the Madison Township Trustees Monday to update them on the city's offer to purchase and install charcoal filters for the well pumps in the ten homes on Twin Lakes Drive.

Saalman says the new filters will help ensure water safety. Saalman says the Ohio EPA and Ohio Department of Health has been assisting the city and health department with this issue. Saalman says high levels of TCE were found in only one home and the residents were notified. Saalman says the chemical TCE was traced back to the city's closed landfill near Twin Lakes Drive.

The new filters have cost the city an estimated $11,000 and so far four out of the ten residents have declined the city's offer for the filters because they feel it does not guarantee complete protection from water contimation. Residents have also voiced their concerns about the water contamination affecting their property values. Exposure to high levels of TCE can cause headaches, nerve and kidney damage, complications to the immune system and skin rashes.

We notice this report is focused on the water supply and does not mention having ruled out vapor intrusion. Since groundwater and underground wells are contaminated near homes, vapor intrusion should also be considered.