Water Pollution

Water pollution usually occurs as a result of human activities and is the contamination of water bodies, including: 

  • Lakes
  • Rivers
  • Oceans
  • Groundwater
  • Aquifers (permeable rock which contains or transmits groundwater)

Water pollution is the introduction of any matter into or onto water, whether solid, liquid or gas, so that the physical, chemical or biological condition of the water is changed.

Causes and problems

Water pollution causes

Water pollution can be caused by:

  • Poor building waste disposal practices
  • Washing vehicles with detergents in the street 
  • Placing chemicals, sediments and any other foreign materials in a body of water or water course (this includes stormwater channels, drains and roadside street gutters)

Water pollution problems

People may use the same polluted river water for:

  • Drinking
  • Bathing
  • Irrigation

Each of these situations may cause harm to people and the environment and is problematic.

Reporting water pollution

If you are concerned that a water pollution incident has occurred or is very likely to occur, report it to:

All water pollution enquiries will be investigated immediately or as soon as practicably possible.


Last updated on 04 August 2020