Hundreds of household wells are being tested. Residents' water taps shut off due to spreading toxic sludge: 'It just kind of kept growing' first appeared on The Cool Down.

NOTE: This version of USA TODAY's PFAS map is outdated. For the most recent version, click here. This map shows water systems that tested at or above newly established PFAS limits since last year.

Coatesville, Doylestown, Audubon, New Hope and Solebury water providers are among 22 statewide that fail to meet state requirements to reduce the so-called “forever chemicals” in drinking water.