-    ARCADIS

-    CH2MHILL

-    Geomatrix Consultants, Inc.

-    Hargis & Associates, Inc.

-    Indiana Department of Environmental Management

-    Ish, Inc.

-    Las Vegas Valley Water Department

-    Los Angeles Department of Water and Power

-    Montgomery Watson Harza Global Inc.

-    New Mexico Interstate Stream Commission

-    Daniel B. Stephens & Associates, Inc.

-    Tucson Water, Tucson , Arizona

-    University of Arizona

-    United States Geological Survey

-    U. S. National Park Service

-    Indian Wells Valley Water District

-    MHA Petroleum Consultants, INC

-    Bechtel BWTX Idaho

-    County Sanitation Districts of Los Angeles  

-    El Paso Water Utilities

-    Geomatrix Consultants, Inc.

-    Idaho National Engineering and Environmental Laboratory

-    Inyo County California Water Department

-    Law Firms:  Arizona , California , and Texas

-    Los Angeles Department of Water and Power

-    Management Solutions for U.S. DOE Yucca Mountain Project

-    Montgomery Watson Harza Global Inc.

-    New Mexico Interstate Stream Commission

-    Daniel B. Stephens & Associates, Inc.

-    U. S. Department of Energy, Hanford

-    U. S. Department of Energy, NPTO

-    U. S. National Park Service