what are three potential sources of groundwater contamination
Chemicals and Road Salts. The widespread use of chemicals and road salts is another source of potential groundwater contamination. Chemicals include products used on lawns and farm fields to kill weeds and insects and to fertilize plants, and other products used in homes and businesses.
The most common sources of human-induced groundwater contamination can be grouped into four categories: waste disposal practiees; storage and handling of materials and wastes; agricultural activities; and saline water intrusion.