California State Water Resources Control Board

The California State Water Resources Control Board (SWRCB) is authorized to regulate the Clean Water Act (CWA) and California’s Porter Cologne Water Quality Control Act. The SWRCB is part of the California Environmental Protection Agency responsible for water right and water quality in the state. "The State Board's mission is to preserve, enhance and restore the quality of California's water resources, and ensure their proper allocation and efficient use for the benefit of present and future generations."

The SWRCB regulates both surface and ground water quality. The SWRCB is comprised of nine Regional Water Quality Controls Boards (RWQCB). Together they have primary responsibility for controlling water quality, implementing the policies of the Porter-Cologne Water Quality Act and the CWA, and authorizing and managing permits for waste discharge into waters of the state.