Since 1992, the U.S. Geological Survey (USGS), in cooperation with the City of Albuquerque, the Albuquerque Metropolitan Arroyo and Flood Control Authority (AMAFCA), the New Mexico Highway Department (NMHD), and the University of New Mexico (UNM), has collected stormwater-quality data to meet regulatory requirements for the application phase of the National Pollutant Discharge Elimination System (NPDES) stormwater permit. The phase I permit requirements apply to cities with populations of 100,000 or greater (U.S. Environmental Protection Agency, 1990). This report describes the stormwater sampling program implemented in the City of Albuquerque from 1992 to the present (2002).