Risk Assessment for Safe Drinking Water Supplies - Global Drinking Water Management and Conservation - page 141

Fig. 6.6 Microbiological performance (2005 - 2012) (Water Corporation of Western Australia
2012 )
i. Health-related performance
The Water Corporation of Western Australia, one of the largest water suppliers
in Australia, provides drinking water to Perth and over 220 small communities
throughout Western Australia (Water Corporation of Western Australia 2012 ).
According to its Drinking Water Quality Annual Report 2011/2012, the microbi-
ological performance target reached 100 percent in the metropolitan and country
regions in Australia and remained at 100 percent throughout the period of 2005 to
2012 (see Fig. 6.6 ). In addition, all metropolitan and country regions achieved
compliance with health-related chemical guidelines over this period (Water Cor-
poration of Western Australia 2012 ).
Fig. 6.7 Esthetic performance in Western Australia, 2011 - 2012 (Water Corporation of Western
Australia 2012 )