1. Ground-water flow and quality beneath sewage-sludge lagoons, and a comparison with the ground-water quality beneath a sludge-amended landfill, Marion County, Indiana Author/Creator: Bobay, Keith E., author Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading
2. Theoretical technique for predicting the cumulative impact of iron and manganese oxidation in streams receiving discharge from coal mines Author/Creator: Bobay, Keith E., author Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading