1. Hydraulic conductivity of the streambed, east branch Grand Calumet River, northern Lake County, Indiana Author/Creator: Duwelius, Richard F., author Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
2. Hydrologic data and hydrologic budget for Summit Lake Reservoir, Henry County, East-Central Indiana, water years 1989 and 1990 Author/Creator: Duwelius, Richard F., author Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1993 Resource Type: Book Access & Availability: Loading
3. Ground-water levels, flow, and quality in northwestern Elkhart County, Indiana, 1980-89 Author/Creator: Duwelius, Richard F., author Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
4. Geohydrology, simulation of ground-water flow, and ground-water quality at two landfills, Marion County, Indiana Author/Creator: Duwelius, Richard F., author Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1989 Resource Type: Book Access & Availability: Loading