What is one source of groundwater contamination?

Question

Quizplus · Accepted Answer

Abandoned hazardous waste dumps can contain harmful chemicals such as lead, mercury, and arsenic, which can seep into the groundwater and contaminate it. A study by the EPA found that 50% of groundwater contamination cases were due to leaking hazardous waste sites. On the other hand, sulfuric acid deposition in a lake and geological seismic surveys may affect surface water, but not necessarily groundwater. The drilling of residential wells may not directly cause contamination, but improper well construction or maintenance can lead to contamination.

What Is One Source of Groundwater Contamination