1. Pesticides in soils and ground water in selected irrigated agricultural areas near Havre, Ronan, and Huntley, Montana Author/Creator: Clark, David W. 1951- (David Wayne), author Publication/Creation: Helena, Montana : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
2. Potential for ground-water development in central Volusia County, Florida Author/Creator: Kimrey, Joel O. 1931- (Joel Otto), author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
3. Potential for saltwater intrusion into the Upper Floridan Aquifer, Hernando and Manatee counties, Florida Author/Creator: Mahon, Gary L., author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1989 Resource Type: Book Access & Availability: Loading
4. Potential hazards from floodflows in Grapevine Canyon, Death Valley National Monument, California and Nevada Author/Creator: Bowers, James C., author Publication/Creation: Sacramento, California : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
5. Potentiometric surface of the alluvial aquifer and hydrologic conditions near Gurabo and Juncos, Puerto Rico, March 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: San Juan, Puerto Rico : U.S. Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
6. Potentiometric surface of the Aquia aquifer in southern Maryland during September 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
7. Potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas, winter, 1974-75 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Austin, Texas : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
8. Potentiometric surface of the Kings Hill aquifer and hydrologic conditions in Saint Croix, U.S. Virgin Islands, July 1987 Author/Creator: Geological Survey (U.S.). Water Resources Division. Caribbean District, cartographer Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, Water Resources Division, Caribbean District, 1990 Resource Type: Map Access & Availability: Loading
9. Potentiometric surface of the Magothy aquifer in southern Maryland during September 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
10. Potentiometric surface of the principal aquifer and hydrologic conditions in the Ponce-Juana Diaz area, Puerto Rico, April-May, 1987 Author/Creator: Geological Survey (U.S.). Water Resources Division. Caribbean District, cartographer Publication/Creation: San Juan, Puerto Rico : U.S. Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading