The search of USAF, state, and federal agencies' records, and interviews with past and present base personnel and agency representatives was conducted to identify past hazardous waste generation and disposal practices at Grand Forks AFB ND. The AFB is located approximately 15 miles west of the City of Grand Forks in Grand Forks County, North Dakota. A number of subinstallations associated with the base were also reviewed. These include the Finley Air Station, Cavalier Radar Site, Defense Fuel Point in Grand Forks and the missile launch and control facilities located throughout the countryside within a 75-mile radius of the base. Petroleum storage, waste disposal and spills account for the most frequent and severe problems. Follow-on recommendations included site cleanup and closure, confirmation studies in the vicinity of past spill sites, and enhanced protection of local surface waters.