Affiliation: | Project Manager, County Sanitations Districts of Los Angeles County, Whittier, California 90607.;Hydrologist, The Department of Hydrology and Water Resources, The University of Arizona, Tucson, Arizona 85721.;Professor, The Department of Civil, Environmental and Architectural Engineering, The University of Colorado at Boulder, Boulder, Colorado 80309.;Senior Hydrologist, Las Vegas Valley Water District, Las Vegas, Nevada 89153. |