The district sent a letter to parents and staff as soon as high levels of PFAS were detected at Central Bucks East High School. The letter stated there was “no immediate threat,” according to the DEP, but that the school would provide bottled water and install a filtration system “out of an abundance of caution.”

Under-the-sink filtration systems were installed throughout the school within a week, reducing the chemicals to non-detectable levels, Spencer said. He said officials may decide to install a more costly building-wide filtration system at a later date after more testing.

“We want to get ahead of it,” Spencer said. “There will be a cost. At the end of these four quarters … if one of our averages is higher than those MCLs, we’re going to have to come up with a longer-term solution.”

Central Bucks parent Jeffrey Shuck said he appreciated the school’s transparency, and the speed at which officials installed filtration systems.

“It looks like they’re taking it seriously going forward, which is what makes me happy,” he said.

However, parent Chris Tomlinson said he believes the school downplayed the situation. He said though schools have followed DEP requirements, he’s appalled they only began monitoring for PFAS this year, considering the chemical’s vast reach.

“That is absolutely unacceptable. With the amount of money that is poured into the Central Bucks School District, water should be paramount — especially if you’re pulling it from a well,” Tomlinson said.

Officials for the Central Bucks School District and the Coatesville Area School District said DEP advised them they need not notify staff and students about PFAS contamination until all tests throughout the year are complete. That’s partly because test results may change due to factors such as rainfall — in fact, a second test at Kings Highway resulted in slightly reduced levels, though still above the new federal regulations.

However, officials at both school districts said they disagreed with DEP’s advice to wait, and decided to notify parents and staff immediately.

Kings Highway Elementary School is currently researching a variety of filtration systems, said Catherine Van Vooren, superintendent for the Coatesville Area School District. She said she expects one to be installed by the end of August.

However, because the DEP said there’s no immediate health risk, tap water was not shut off. Bottled water has always been available as an option at the school, Van Vooren said.

“It’s very important to us that our students and staff are drinking water that meets guidelines,” she said. “Science is always evolving, and we’re going to continue to do whatever we need to do to be in compliance with these changing guidelines.”

Van Vooren said though addressing PFAS is a significant undertaking, the district is prepared to take on the challenge.

“Anytime you have something that wasn’t budgeted, that’s always a concern for schools because you have specific monies that are budgeted in different departments,” she said.

“That said … we also have our reserve, because you just never know what’s going to happen. We’re going to need a whole school water filtration system, but it could also be something happens with a roof, or a natural disaster, or something of that sort. So, we are prepared to absorb this without it having a huge effect on our budgetary costs.”

There is no need to panic when water first tests positive for PFAS since the health effects associated with the chemicals appear to be chronic in nature, said Andy Yencha, a water resources educator at Penn State Extension at Penn State University. He said parents should ask the school what level of PFAS was detected in the water system.

“If the levels of PFAS in the school’s water exceed the EPA’s more stringent levels then I believe the best course of action is … the child, or anyone at the school, should avoid the drinking water … until the PFAS levels are reduced to below the federal MCLs.”

In a statement, the Pennsylvania Department of Education said it’s working closely with schools that have identified PFAS in their water systems, and is providing support. Schools may also seek funding from the Public School Environmental Repairs Program to address PFAS. The $75 million grant program helps to fund environmental remediation at schools.

“The Shapiro administration is committed to ensuring that all students can learn in a safe, secure environment free from hazards and environmental toxins,” a spokesperson said in a statement.