Analysing water samples will be a part of any WQM program. The parameters tested, protocols followed and the methods used in the analysis will be determined by the specific type of monitoring program. For example, to collect basic water quality information, testing in the field using a Streamwatch/Waterwatch Kit or similar equipment may suffice.Appropriate laboratory analysis will ensure accurate and precise data generated in a safe environment. The particular analytical methods chosen will depend upon detection limits and precision required, and will generally follow standard methods.
  

Many councils, particularly those that operate their own water supply and wastewater treatment plants, will have their own laboratories that are capable of testing for some water quality parameters. In other cases, such as if more specialised laboratory tests are required, council may have to engage an outside laboratory.

Considerations in selecting an laboratory to undertake analysis of water samples may include:

• Whether the lab has the equipment and expertise to perform the tests required.
• Whether the lab is accredited for the relevant analyses, for example, under the National Association of Testing Authorities (NATA).
• Transport issues related to how close the lab is to where the samples are to be taken. This would be particularly relevant for analyses that must be undertaken quickly such as faecal coliforms.
• Operating hours of the lab, including whether they operate on the weekend.
• Whether the lab is able to provide advice and/or reports that interpret the results of the analysis or whether this will be up to the client.
• Whether a consultant will undertake data management or whether this will be responsibility of council.
• If a consultant has already been engaged to undertake field sampling, often the same consultant can undertake laboratory analyses.