CALIFORNIA CITIES
Alhambra
Anaheim
Angels
Arcadia
Azusa
Beaumont
Blythe
Brawley
Burbank
Calipatria
Carlsbad
Coachella
Corona
Cypress
El Centro
Escondido
Glendale
Holtville
Huntington Beach
Indian Wells
Indio
Ione
Lompoc
Long Beach
Los Angeles
Ontario
Oxnard
Pasadena
Patterson
Pomona
Riverside
Rosemead
Sacramento
San Clemente
San Diego
San Francisco 
San Mateo
Simi Valley
Soledad
Sunnyvale
Thousand Oaks 
Tracy
Vista
Westmorland

CALIFORNIA COUNTIES
Los Angeles
Sacramento
San Bernardino
San Diego
Santa Barbara

STATE OF CALIFORNIA
Environmental Protection 
   Agency (CalEPA)
Department of Corrections
Dept. of General Services
University of California

U. S. GOVERNMENT
U. S. Army Corps of Engineers
U. S. Air Force and Air Force
   Center for Environmental Excellence
U. S. Naval Facilities Engineering
  Commands
U. S. General Services Administration
National Aeronautics and Space
  Administration (NASA)

PUBLIC AGENCIES
Calaveras County Water District, San Andreas, Ca.
Castaic Lake Water Agency, Santa Clarita, Ca.
Central Basin Municipal Water District, Carson , Ca.
Central Contra Costa Sanitary District, Martinez, Ca.
Central Valley Water Reclamation Facility, Salt Lake City, Utah
Coachella Valley Water District, Coachella, Ca.
Contra Costa Water District, Concord , Ca.
Crescenta Valley Water District, La Crescenta, Ca.
East Bay Municipal Utility District, Oakland, Ca.
Elsinore Valley Municipal Water District, Lake Elsinore, Ca.
El Dorado Irrigation District, Placerville, Ca.
El Toro Water District, El Toro, Ca.
Encina Wastewater Authority, Carlsbad, Ca.
Estero Municipal Improvement District, Foster City, Ca.
Inland Empire Utilities Agency, Chino, Ca.
Irvine Ranch Water District, Irvine, Ca.
County Sanitation Districts of Los Angeles County, Whittier, Ca.
Los Angeles Co. Metropolitan Transportation Authority, Los Angeles, Ca.
Los Angeles Unified School District, Los Angeles, Ca.
Metropolitan Water District of Southern California, Los Angeles, Ca.
Monte Vista Water District, Montclair, Ca.
Orange County Sanitation District, Fountain Valley, Ca.
Orange County Water District, Fountain Valley, Ca.
Orange County Transportation Authority, Garden Grove, Ca.
Otay Water District, Spring Valley, Ca.
Padre Dam Municipal Water District, Santee, Ca.
Paradise Irrigation District, Paradise, Ca.
Rincon del Diablo Municipal Water District, Escondido, Ca.
Sacramento Regional County Sanitation District, Elk Grove, Ca.
Sacramento Regional Transit District, Sacramento, Ca.
San Diego County Water Authority, San Diego, Ca.
Santa Clara Valley Water District, San Jose, Ca.
Santa Margarita Water District, Las Flores, Ca.
South Orange County Wastewater Authority, Dana Point , Ca.
Three Valleys Municipal Water District, Claremont , Ca.
Trabuco Canyon Water District, Trabuco Canyon, Ca.
Transportation Corridor Agency, Costa Mesa, Ca.
Upper San Gabriel Valley Municipal Water District, El Monte, Ca.
Valley Sanitary District, Indio, Ca.
Walnut Valley Water District, Walnut, Ca.
Water Replenishment District of Southern California, Cerritos, Ca.
West Basin Municipal Water District, Carson , Ca.
Yorba Linda Water District, Yorba Linda, Ca.

CONSTRUCTORS AND DEVELOPERS
Ahrens Corporation
Catellus Urban Development Corp.
Daewoo Orion Electronics, Co. Ltd.
Hyundai Eng. & Const., Co. Ltd.
Obayashi America Corp.
Shimizu America Corp. 
Stanek Constructors