Water Supply and Flood Control

• Alameda County Water District
• Calpella County Water District
• Contra Costa Water District
• East Bay Municipal Utility District
• El Dorado Irrigation District
• Kern River Groundwater Sustainability Agency
• Modesto Irrigation District
• Napa County Flood Control and Water Conservation District
• River Estates Mutual Water Corporation
• Salinas River Channel Coalition
• San Jose Water Company
• Santa Clara Valley Water District
• Sonoma County Water Agency
• Sierra Lakes County Water District
• Stanislaus Regional Water Authority
• Tuolumne Utilities District
• Vallejo Sanitation and Flood Control District
• Willow County Water District
• Zone 7 Water Agency

City, County, Local Government

• Alameda County General Services Agency
• Alameda Countywide Clean Water Program
• City of Angels Camp
• City of Bakersfield
• City of Elk Grove
• Contra Costa County Public Works Department
• County of San Mateo
• City of Modesto
• City of Oakland
• City of Orinda
• City of Sunnyvale
• City of Turlock
• Los Angeles & San Gabriel Rivers Watershed Council
• Mendocino County Resource Conservation District
• Monterey County Water Resource Agency
• Midpeninsula Regional Open Space District
• Napa County
• Santa Clara County Open Space Authority
• City of Santa Cruz
• Town of Windsor
• Town of Yountville
• Tuleyome Resource Conservation District

State of California

• California Bureau of Cannabis Control
• California Department of Consumer Affairs
• California Department of Fish and Wildlife
• California Department of Food and Agriculture
• California Department of General Services
• California Department of Transportation
• California Department of Water Resources
• California Office of Statewide Health Planning and Development
• California Public Utilities Commission

Federal Government

• U.S. National Parks Service

Firms

• Argonaut Constructors
• Aspen Environmental Group
• Carollo Engineers
• CH2M
• Collins and Schoettler
• Cox, Castle & Nicholson
• Cramer Fish Sciences
• Dow
• Duane Morris
• ECORP Consulting, Inc.
• ERRG
• Environmental Science Associates
• FlowWest
• GHD
• Hanson Bridgett LLP
• H.T. Harvey & Associates
• HDR, Inc.
• ICF
• Inter-Fluve
• John Henning Planning Law Group
• Lee and Pierce Consulting Engineers
• LSA Associates, Inc.
• Michael Baker International
• Moffatt & Nichol
• Parsons
• Phenix Environmental Planning
• Rentech
• Woodard & Curran
• Todd Groundwater
• AECOM
• WRA, Inc.
• Water Resources Engineering, Inc.
• Wood Rodgers

Other Planning, Resource, and Research Organizations

• Association of Bay Area Governments
• Bay Area Stormwater Management Agencies Association
• Headlands Institute
• Resources Legacy Fund Foundation
• Southern California Coastal Water Research Project
• U.C. Davis Extension

Private Lands

Horizon has worked with a number of privately owned land holders.