California Safe Drinking Water Act: emergency regulations.

This bill would provide that the authority of the state board to adopt an emergency regulation pursuant to these provisions includes the authority to adopt requirements of a specified federal regulation that was in effect on January 19, 2025, regardless of whether the requirements were repealed or amended to be less stringent. The bill would prohibit an emergency regulation adopted pursuant to these provisions from implementing less stringent drinking water standards, as provided, and would authorize the regulation to include monitoring requirements that are more stringent than the requirements of the federal regulation. The bill would prohibit maximum contaminant levels and compliance dates for maximum contaminant levels adopted as part of an emergency regulation from being more stringent than the maximum contaminant levels and compliance dates of a regulation promulgated pursuant to the federal act. The bill would require, on or before December 31, 2026, the state board to adopt an emergency regulation and to initiate a primary drinking water standard for perfluoroalkyl and polyfluoroalkyl substances, as provided. The bill would make other changes to proceedings initiated upon the adoption of an emergency regulation to establish a public health goal and primary drinking water standards, as specified.