SCI REF GE10 .E49 1998. Kluwer Academic, 1998. Lewis Publishers, c1990. SCI REF TD351 .V36 1990. These would at least be a start, but you might also want to look at the Methods sections in scientific publications like Water Resources Research .
Newspapers can be useful sources of general information and pointers to issues.
Here's an example of a search for 'groundwater' in Virginia newspapers , which gives you some idea of what's on the public mind. Another approach could be to hunt for Web resources, and indeed there's a LOT out there. Here are some links from the Web, more or less on Virginia water issues and information, and they could at least give you more ideas about outstanding issues and concerns. And for a really good time, take a look at the EPA's Index of Watershed Indicators , and especially their Surf Your Watershed . Here's a link to their material on the Maury River .