Groundwater contamination

Groundwater pollution and contamination

Groundwater contmaination occurs when pollutants are released to the ground and seeps deep into groundwater. This occurs naturally for the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater

There are two types of groundwater contamination: point sources and non-point sources. Point sources include landfills, leaking gasline storage tanks, leaking septic tanksand accidental spills; as the name implies, we can point to the source of contamination. 

Non-point sources can be less obvious and can include naturally occurring contaminants, such as iron, arsenic, and radiologicals and runoff from parking lots, pesticides and fertilizers that infiltrate the soil and make their way into an aquifer. 

There are different methods to prevent groundwater contamination such as:

  • Groundwater Quality Monitoring
  • Locating on-site sanitation systems
  • Educating farmers about proper use of pesticides and fertilizers
  • Limited use of chemical by industries
  • Treating groundwater at point of usage