RCAC: Chromium in Drinking Water: Return of the Chromium-6 MCL
Accreditation: 2 California Drinking Water Contact Hours awarded Description: Chromium in drinking water has been regulated since 1977, but hexavalent chromium, more commonly known as chromium-6, has had a turbulent regulatory history. In 2014 chromium-6, due to its increased carcinogenicity, had its own maximum contaminant level (MCL) established in California. In 2017, that MCL was invalidated. […]