Quality of Mains Water Assessed Against Water Quality Criteria

 

Table 6.15: Five-year average concentrations and percent compliance of water quality parameters recorded in metropolitan mains water supplies measured at the customer tap, 1997/98 to 2001/02

Australian Drinking Water Guidelines Anstey Hill System Barossa System Happy Valley System Hope Valley System Little Para System Myponga System
Indicators Health Aesthetic Avg %Compliance Avg %Compliance Avg %Compliance Avg %Compliance Avg %Compliance Avg %Compliance
Microbiological
E.Coli/100ml 0   na 99.9 na 100 na 100 na 100 na 100 na 100
Chemical
Aluminium acid soluble mg/L   0.2 0.058 100 0.038 100 0.043 100 0.051 100 0.042 100 0.029 100
Nitrate as NO3 mg/L 50   0.67 100 0.4 100 0.97 100 0.86 100 0.6 100 0.48 100
Fluoride mg/L 1.5   0.91 100 0.87 100 0.87 100 0.88 100 0.92 100 0.86 100
Total Copper mg/L 2 1 0.023 100 0.041 100 0.061 100 0.03 100 0.035 100 0.08 100
Total Iron mg/L   0.3 0.018 100 0.018 100 0.026 99.7 0.017 100 0.019 100 0.021 100
Total Manganese mg/L 0.5 0.1 0.005 100 0.005 100 0.007 100 0.005 100 0.004 100 0.016 100
THM µg/L 250   147 98 137 100 146 100 125 100 108 100 166 100
Physical
True Colour HU   15 2 100 2 100 2 100 2 100 2 100 2 100
Turbidity NTU   5 0.2 100 0.2 100 0.3 100 0.2 100 0.2 100 0.5 99.4
Total Dissolved Solids mg/L   500 359 100 412 100 366 100 357 100 373 100 381 100
pH   6.5 – 8.5 7.4 100 7.3 100 7.4 100 7.3 100 7.4 100 7.5 100
Hardness as CaCO3 mg/L   200 134 100 148 100 138 100 145 97.9 143 100 109 100

na: not available or not applicable

Source: SA Water, 2002

 

  This page was last modified 2005-01-31