California Public Utilities Commission

California Urban Water Conservation Council

California Department of Public Health

California Department of Water Resources

California Water Association

Chino Basin Watermaster

Main San Gabriel Basin Watermaster

Upper San Gabriel Valley Municipal Water District

Central Basin Municipal Water District

Inland Empire Utilities Association

Be Water Wise

Inland Empire Utilities Agency

American Water Works Association

Association of California Water Agencies (ACWA)

Metropolitan Water District of Southern California (MWD)

National Association of Water Companies

American Ground Water Trust

CALFED Bay-Delta Program

California Environmental Protection Agency

California Farm Bureau Federation

Environmental Protection Agency (EPA)

The Groundwater Foundation

State Water Resources Control Board

Water Replenishment District of Southern California

Santa Ana Regional Water Quality Control Board

The California - Nevada Section of the American Water Works Association

U.C. Berkeley Water Resources Center