2019 No https://www.jstor.org/stable/26726954 Sullivan, Marianne North America Experimental Observational Other Water quality Heavy metals Other In 2016, New Jersey required schools to test drinking water for lead and report results online. This study reviewed 501 district websites: 90% conducted testing, 87% posted results, and 79% found lead >15 ppb. Highlights the impact of state mandates on environmental compliance.