The Australian Drinking Water Guidelines note that assessment of the drinking water supply system, including understanding its characteristics, sources of hazard and risks, is an essential prerequisite for subsequent steps in which effective strategies for prevention and control of hazards are planned and implemented. A water supply system can be defined as anything from source to endpoint – the components of this system depend on the type of water product or service being delivered, the specific processes involved, the interested parties in the supply chain and the required regulatory and formal requirements.

So, what is the best way to understand the risk for our objectives, how do we understand water supply system context for the risk assessment? What makes a good water supply system flow diagram?…

 

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