Water-quality and geohydrologic data were collected at two sanitary landfill (solid-waste disposal) sites near Anchorage, Alaska. The study was undertaken by the U.S. Geological Survey in cooperation with the Greater Anchorage Area Borough and the U.S. Air Force. The purpose of the study was to evaluate the environmental effects of solid-waste disposal on the ground-water system and establish criteria for selecting future landfill sites. This report is a compilation of the data collected through August 1973.