A proposed state regulation is expected this year that would set health limits for some of the chemicals, which have been linked to serious illnesses.
Horsham, Warrington and Warminster townships are among eight sites nationally where the Centers for Disease Control and Prevention and the Agency for Toxic Substances and Disease Registry will seek volunteers to have their blood drawn.
The results are from the first round of testing by the Department of Environmental Protection.
As part of a Navy-wide effort, the installation, which serves as a warehousing and logistics site, has reached out to nearby residents who have private water wells to do testing.
