Children spend a significant portion of their day at school, making school drinking water quality an important public health concern. PFAS contamination in school water systems has been documented across the United States, and appropriate filtration can protect children during the hours when school is their primary water source.
Children’s Heightened Vulnerability to PFAS
Children are more vulnerable to PFAS than adults on a body-weight basis. They consume more water relative to body weight, and PFAS exposure during developmental periods may affect immune function, thyroid hormones, and vaccine effectiveness. The EPA’s 2024 MCL of 4 ppt for PFOA and PFOS reflects health concerns across all age groups, with children’s vulnerability factored into the risk assessment.
Common PFAS Sources in Schools
Schools can receive PFAS-contaminated water from municipal systems, from private wells on school grounds, or from internal plumbing contamination including lead and PFAS co-contamination. Older school buildings may have PFAS-containing fire suppression foam systems that have historically leaked into plumbing. Identifying the source of contamination guides appropriate remediation strategy.
Filtration Approaches for Schools
Point-of-use certified filters at drinking fountains and cafeteria water connections are the most targeted and cost-effective approach for PFAS reduction in schools. Whole-building treatment requires larger systems but addresses all water contact points including food preparation. Several states now require PFAS testing in school water and provide funding or technical assistance for filtration system installation. NSF-certified systems with documented maintenance protocols provide the most defensible protection for school administration.