1. Relation between selected well-construction characteristics and occurrence of bacteria in private household-supply wells, south-central and southeastern Pennsylvania Author/Creator: Zimmerman, Tammy M. Publication/Creation: New Cumberland, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
2. Relation between selected well-construction characteristics and occurrence of bacteria in private household-supply wells, south-central and southeastern Pennsylvania Author/Creator: Zimmerman, Tammy M. Publication/Creation: New Cumberland, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
3. Microbiological quality of water from noncommunity supply wells in carbonate and crystalline aquifers of Pennsylvania Author/Creator: Lindsey, Bruce D., 1962- Publication/Creation: Denver, Colo. : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
4. Bacteriological quality of ground water used for household supply, lower Susquehanna River Basin, Pennsylvania and Maryland Author/Creator: Bickford, Tammy M., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading