Information icon

Our website is currently undergoing maintenance. If you're having issues please let us know through our feedback form.

Arrow icon

River Values Assessment System (RiVAS) Reports

The River Values Assessment System (RiVAS) is a tool that has been developed in New Zealand to help councils rank the relative significance of rivers in their region in relation to a specific use or value.

The method uses the best available data and expert panel knowledge to assess rivers against a standard set of attributes and indicators for each value. Threshold values allow this information to be translated into a numerical score from 1-3 for each indicator. These can then be added to obtain a total score for each river.