On March 6, the California State Water Resources Control Board announced it will soon issue orders to owners and operators of more than a thousand facilities in California requiring environmental investigation and sampling for per- and polyfluoroalkyl substances, known by the acronym PFAS. As “Item 10” in a four-hour meeting providing updates on state and federal programs addressing PFAS, Darrin Polhemus, Deputy Director of the State Board’s Division of Drinking Water (DDW), and Shahla Farahnak, Assistant Deputy Director of the Division of Water Quality (DWQ), unveiled an aggressive “Phased Investigation Plan.”