City of Albany, California

City of Berkeley, California

City of Mountain View, California

City of Sunnyvale, California

County of Sonoma, California

Aqua Terra Technologies, Walnut Creek, California

BHP-Utah International, San Francisco, California

Buresh, Kaplan, Jang & Feller, Berkeley, California

Caudle, Welch, Umipeg & Bovee; Concord, California

Caulfield, Davies & Donahue, Sacramento, California

Enron Development Corporation, Houston, Texas

Goleta Water District, Goleta, California

Hydrofocus, Inc., California

Incon, Inc., Jessup, Maryland

Kiewit Pacific Company, Concord, California

Northwest Hydraulics, Inc., California

Pacific Gas and Electric Company, San Francisco, California

The PRA Group, Newark, California

Santa Clara University, Santa Clara, California

Todd Engineers, Emeryville, California

Trident Environmental and Engineering, Antioch, California

University of California, Berkeley, California

Jon York & Associates, Berkeley, California

Winzler & Kelly, San Francisco, California