Aquatic Toxicology Links

U.S. Environmental Protection Agency links

EPA National Pollutant Discharge Elimination System (NPDES) 
EPA NPDES Whole Effluent Toxicity (WET)
EPA Clean Water Act
EPA Water Science Home Page 
EPA Water Quality-Based Permitting Publications
EPA WET Analysis Statistical Program Factsheet
EPA WET Analysis Statistical Program

U.S. Geological Survey links

Aquatic Toxicology 
Water Resources of the United States
Contaminant Biology - Toxicology Research
NC State Cooperative Extension - Toxicology
Society of Environmental Toxicology and Chemistry (SETAC)
Carolinas SETAC
Southeastern Water Pollution Biologists Association (SWPBA)