¤ Natural contamination occurs when natural chemicals found in groundwater such as dissolved salts, iron, manganese and other trace metals occur.

¤ Groundwater contamination commonly results from human activities where pollutants, susceptible to percolation are stored and spread on or beneath the land surface.

¤ Water treatment is now at an advanced stage where technology can ensure a potable water supply - one that is chemically and microbiologically safe for human consumption. To ensure appropriate and successful water treatment it is essential that samples are taken correctly and forwarded to the laboratory for appropriate analysis.