Analysing where the water source is, and using problem solving skills to determine what the likely contaminants are nearby, e.g. If a water source is near a known mine site it might be useful to have the water tested for the metals that are found in the mine etc. Analysing physical properties of water, e.g. colour, taste and odour Sampling water for chemical and/or biological properties. For example, for biological samples taken from a tap, the tap must first be sterilised Water needs to be run through the tap to clear any water that may still be sitting in the pipes. The spout of the tap then needs to be heated for approximately one minute to kill any bacteria before taking the sample It is important that whoever is taking the sample does not let their hands or fingertips come into contact with the water, neck of the container, or inside of the container A date and a time should be written on the container, and the sample chilled The sample needs to get to the laboratory within 5-12 hours of it being taken. In remote areas, sample taking needs to be co-ordinated appropriately in accordance with flight schedules etc. For biological samples taken from flowing or still water different sampling techniques are used to prevent contamination from the hands or arm of the person taking the sample Analysing test results in accordance with water quality guidelines, e.g. the Australian Water Quality Guidelines Water treatment and disinfection e.g. filters, chlorination, distillation, boiling water for approximately 10 minutes if there is no form of disinfection in the community or outstation, etc. |