Preston Library is a selective depository for U. S. government publications. The depository receives approximately 25% of all available items. You will find documents from Army Corps of Engineers, EPA, the Interior Department's Geologic Survey, and others. Access may be paper, microfiche and electronic. Topographical maps of Virginia are located in the map cases located on the 6th floor of Preston Library. See Col. Janet Holly, Research and Instruction Librarian, if you have problems finding a particular map.
There are many government resources for hazardous waste treatment.