- State & Regional Water Boards' Map
- Decisions Pending and Opportunities for Public Participation
The Los Angeles Regional Water Quality Control Board (LARWQCB) protects ground and surface water quality in the Los Angeles Region, including the coastal watersheds of Los Angeles and Ventura Counties, along with very small portions of Kern and Santa Barbara Counties.
The Los Angeles Regional Board is one of nine Regional Boards statewide. These Boards are part of the California Environmental Protection Agency (CAL/EPA), along with the Air Resources Board, the Department of Pesticide Regulation, the Department of Toxic Substance Control, the California Integrated Waste Management Board, and the Office of Environmental Health Hazard Assessment.