Another Lancaster County school has found lead in its water supply.
Lancaster Country Day School informed parents on Friday that a voluntary testing of pipes and 15 sinks and water fountains showed one art sink in the Lower School had elevated levels of lead, a toxic metal.
In the email to parents and families, Steven D. Lisk, head of school, said prominent “do not drink” signs were placed on the sink and nearby water fountains “as a protective first step.”
Lisk said the school is awaiting recommendations from its consultant on how to fix the water line coming to the sink.
School spokeswoman Dulcey Antonucci said the sink was not used for drinking. It is a utility sink used for washing art supplies and hands, she said.
She said it is not known how old the pipes are that feed into the sink. Some of the pipes in the school date to 1954.
Lead used as solder in old pipes as well as lead in old fountains and fixtures are common sources of lead found in water.
The use of lead in plumbing and solder was banned by Congress in 1986.
Ingestion of lead can hinder brain development, lower IQ and cause behavior problems in children. No level of lead is considered safe.
Country Day’s testing for lead was a voluntary action. The school was not required to test by state or federal laws.
But many schools have tested their drinking water sources since the 2015 discovery that the public water supply in Flint, Michigan, was widely contaminated by lead.
That resulted in a new Pennsylvania state law that urges all public and charter schools to test for lead by the end of the 2018-19 school year.
All 17 school districts in Lancaster County will have tested for lead by the end of the school year.
The latest school districts to complete testing are Warwick and Columbia. Neither found any elevated levels of lead.
Cocalico School District has partially completed its testing. Denver Elementary School and Cocalico Middle School recently were cleared.
School districts that have found elevated levels of lead in some water sources as a result of voluntary testing or the new law include the School District of Lancaster, Ephrata Area, Solanco, Pequea Valley and Penn Manor. All have taken remedial action.
School districts still awaiting first-time testing results are Conestoga Valley, Hempfield and Elizabethtown, as well as the La Academia Partnership Charter School.