Virginia Cooperative Extension2013-12-142013-12-142001http://hdl.handle.net/10919/246926 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.LD5655 .A762 no.490Virginia Cooperative ExtensionWater quality management -- Study and teaching -- VirginiaExtension publication48915049