21. U.S. Geological Survey Toxic Substances Hydrology Program : proceedings of the Technical Meeting, Phoenix, Arizona, September 26-30, 1988 Author/Creator: U.S. Geological Survey Toxic Substances Hydrology Program. Technical Meeting Phoenix, Ariz.), (1988 : author Publication/Creation: Reston, Virginia : U.S. Geological Survey, 1989 Resource Type: Book Access & Availability: Loading
22. The computer model SHARP, a quasi-three-dimensional finite-difference model to simulate freshwater and saltwater flow in layered coastal aquifer systems Author/Creator: Essaid, Hedeff I., author Publication/Creation: Menlo Park, California : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
23. Computerized stratified random site-selection approaches for design of a ground-water-quality sampling network Author/Creator: Scott, J. C., author Publication/Creation: Oklahoma City, Oklahoma : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
24. External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1988 Author/Creator: See, Randolph B., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
25. Considerations related to drilling methods in planning and performing borehole-geophysical logging for ground-water studies Author/Creator: Hodges, Richard E. 1948-2015, (Richard Everett), author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
26. Programs and analytical methods for the U.S. Geological Survey acid rain quality-assurance project Author/Creator: See, Randolph B., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
27. A steady-state unsaturated-zone model to simulate pesticide transport Author/Creator: Rutledge, A. T., author Publication/Creation: Lawrence, Kansas : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
28. Summary of the National Atmospheric Deposition Program/National Trends Network intersite-comparison program, November 1978-November 1989 Author/Creator: Gordon, J. D., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
29. Comparison of conventional onsite recorders and satellite telemetry for surface-water data collection by the U.S. Geological Survey Author/Creator: Parrett, Charles, author Publication/Creation: Helena, Montana : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
30. U.S. Geological Survey Toxic Substances Hydrology Program : proceedings of the technical meeting, Monterey, California, March 11-15, 1991 Publication/Creation: Reston, Virginia : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading