US Geological Survey
Usgs: National Water Quality Assessment Program
Use this website to find out about water quality issues anywhere in the U.S.A. where water studies have been conducted by the U.S. Geological Survey.
US Geological Survey
Usgs: Water Science for Schools Effects of Urbanization
This U.S. Geological Survey website offers a short article then lists topics that are linked to brief articles that describe that particular topic's effect on water quality in urban areas. Click Home to access the site in Spanish.
US Geological Survey
Usgs: Water Science for Schools Pesticides Ground Water
This US Geological Survey site briefly discusses the basics of why pesticides are increasingly found in our ground water. Click Home to access the site in Spanish.
Center for Educational Technologies
Exploring the Environment: Water Quality #2
Use this case study from the Wheeling Jesuit University and a real world type problem to learn about water pollution and water quality assessment. Lots of supporting material.