Our Clients

Our clients include local agencies, state and federal agencies, regulatory bodies, wastewater dischargers, universities and international firms.

Representative Client List

Federal Agencies

United States Army Corps of Engineers
United States Bureau of Reclamation
United States Department of the Interior
United States Environmental Protection Agency
United States Geological Survey
National Weather Service

State Agencies and Universities

California Department of Water Resources
California Department of Fish and Wildlife
California Water Resources Control Board

  • Santa Ana Regional Board
  • Santa Rosa Regional Board
  • Central Valley Regional Board

University of California, Davis
Interagency Ecological Program
California Bay-Delta Authority

California Cities and Counties

City of Manteca, CA
City of Modesto, CA
City of Novato, CA
City of Palo Alto, CA
City of Pinole, CA
City of Santa Rosa, CA
County of Orange, CA

Water Supply

California Urban Water Agencies
Delta Wetlands Project
East Bay Municipal Utilities District
Irvine Ranch Water District
Metropolitan Water District of Southern California
Modesto Irrigation District
San Luis and Delta Mendota Water Authority
Santa Clara Water District
Sonoma County Water Agency
State and Federal Contractors Water Agency
State Water Contractors

Treated Wastewater Discharge

Bay Area Dischargers Association
Contra Costa Central Sanitary District
Delta Diablo Sanitation District
South Bay Sanitary Authority


Environmental Protection Department, Hong Kong
Patterson Britton & Partners, Ltd, Australia
Water Research Laboratory / Unisearch, Ltd., Australia

Contact us today to learn how we can assist you on your next project.