1. Aquifer susceptibility in Virginia, 1998-2000 Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Service [distributor]. Resource Type: Book Access & Availability: Loading
2. Aquifer tests and simulation of gound-water flow in Triassic sedimentary rocks near Colmar, Bucks, and Montgomery Counties, Pennsylvania Author/Creator: Risser, Dennis W. Publication/Creation: Denver, Colo. : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
3. Assessments of aquifer sensitivity on Navajo Nation and adjacent lands and ground water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project, Arizona, New Mexico, and Utah Author/Creator: Blanchard, Paul J. Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor] Resource Type: Book Access & Availability: Loading