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Lead Testing Results

Princeton Public Schools recently completed testing for lead levels in water. John Witherspoon Middle School had a seldom-used water fountain that tested at 19.4 ppb (parts per billion) and a sink faucet in an office that tested at 29.3 ppb. These levels exceeded the EPA action level of 15 ppb. The fountain and faucet were immediately turned off and will be permanently taken out of service.

According to the New Jersey Department of Health, while lead in drinking water is a source of concern, lead-based paint chips and dust remain the most significant causes of exposure to lead. Typically, drinking water alone has not been associated with elevated blood lead levels.

Testing was conducted at all six schools in the district and included all water fountains and any sink from which water is regularly consumed ñ for instance, sinks in school kitchens or in nursesí offices. NJDOE regulations adopted in 2016 require school districts to test lead levels in schools at least once every six years, starting with the 2016-2017 school year, unless additional testing is needed.

For questions or additional information about the testing and the results, please contact Gary Weisman, Director of Operations for Princeton Public Schools, at 609-806-4200 ext. 2050 or For more information on lead in water and the health effects of lead, visit the EPA's website.

Students are allowed to bring water bottles to school through the end of the school year.