Proportion of bodies of water with good ambient water quality

The current assessment suggests that water quality is generally better in the east of the state than in the central and western regions. 26% of all sites rated as having good or better water quality for 2010-2017, a reduction from 37% of sites for 2004-2009.
Region: 
Victoria
Measures: 
% of river basins rated as having good or better water quality (as per the water quality component of the Index of Stream Condition calculations)
Topics: 
Water quality