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Lead Water Testing

Lead in Water Testing

Effective January 1, 2017, all public school districts must test the lead content of the water in all schools serving preschool through fifth grade students that were built before January 1, 1987.  This testing must be done by December 31, 2017. Hillside School District is charged with testing “sources of potable water.” Sources of potable water include tap, faucet, drinking fountain, wash basin that is in a classroom with students under first grade, and similar sources; however, bathroom sinks and wash basins used by the janitorial staff are specifically excluded.


The Illinois Code only mandates sampling the hand washing sinks in classroom used by students younger than first (1st) grade. In November 2017, Hillside School District decided to test all sinks located within a classroom. When any individual sample test result exceeds 5 parts per billion (pbb) or micrograms per liter (ug/L), schools are required to provide individual notification to parents and guardians.


Based upon the May 8, 2018 testing results,  ALL water sources including tap, faucet, and drinking fountains in Hillside School District 93 comply with regulations outlined in the statue.