Drinking water monitoring and testing

Naturally sourced water can be contaminated in many ways. Testing of the water is the only way to determine if the water is safe to drink.

Private domestic household drinking water systems

A standard drinking water test is available for householders and small private systems. 

For the correct technique to take a water sample for microbiological testing, refer to:

Standard drinking water sampling technique - microbiological (PDF 299KB)

Reticulated drinking water scheme providers and minesites

Reticulated drinking water scheme providers and minesites are required to establish a monitoring program that meets the Australian Drinking Water Guidelines. For further information, refer to the industry specific webpages:

Reticulated drinking water scheme providers

Minesites and exploration camps

Interpretation of drinking water quality results

The Environmental Health Directorate of the Department of Health WA will be able to assist you in interpreting your drinking water quality results. We can be contacted on the number below.

Laboratories will not be able to provide you health advice as they are not accredited to do so.

Information for sampling agencies

As of 1 July 2012, thermotolerant coliforms will be replaced by E. coli.

in the assessment for compliance of microbiological quality in drinking water. For more information on changes in analytical techniques, reporting and response requirements, refer to the E. coli and drinking water quality webpage.

Information for Laboratories

For further information on testing methodology visit the webpage for laboratories.
Last reviewed: 17-06-2016
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Public Health