* Salting of Water Supply
* Acid Rain
* Aquifer Depletion
* Arsenic Contamination
* Elevated Nutrient Contamination
* Energy Production Demand
* Heavy Metals Contamination
* High Demand
* Mercury Contamination
* Microbial Contamination
* Mining Pollution
* Organic and Industrial Toxins
* Radioactive Contamination
* Pesticide Contamination
* Radon Contamination
* Salt Water Intrusion into Aquifers
http://www.watercampws.uiuc.edu/index.php?menu_item_id=155


