Arnold J. Hansen

Ground-water flow simulation of the Columbia Plateau regional aquifer system, Washington, Oregon, and Idaho

Ground-water availability on the Kitsap Peninsula, Washington

Modifications to the modular three-dimensional finite-difference ground-water flow model used for the Columbia Plateau regional aquifer-system analysis, Washington, Oregon, and Idaho

Archiving of source code for the finite-difference flow model and the post-processors and input and output files for the Columbia Plateau regional aquifer system, Washington, Oregon, and Idaho

Ground-water resources of Block Island, Rhode Island