1. Groundwater residue sampling design Publication/Creation: Washington, DC : American Chemical Society, 1991 Format: Book Access & Availability: Loading
2. Water-quality assessment of the Delmarva Peninsula, Delaware, Maryland, and Virginia--analysis of available ground-water-quality data through 1987 Author/Creator: Hamilton, Pixie A. Publication/Creation: Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey Format: Book Access & Availability: Loading