Central Metro

Central Metro Drinking Water System

Reporting period: 12 months to 01 June 2019
Approximate number of customers supplied (2016 Census data): 500,000
Central Metro System consists of the processes shown below
Image depicting the water treatment process at Central Metro

Can be supplied by Adelaide Desalination Plant and other Metropolitan water treatment plants.

Water Quality Data for routine samples at Customer Taps
Parameter Units Health Guideline* Aesthetic Guideline* Average Value Health Compliance #
Alkalinitymg/LNGNG49NA
Bicarbonatemg/LNGNG60NA
Calciummg/LNGNG21.2NA
Carbonatemg/LNGNG0NA
Chloridemg/LNG≤ 25092NA
ColourHUNG≤ 15<1NA
E. colicfu/100mL0NGNA99.90%
Fluoridemg/L≤ 1.5NG0.8100%
Hardnessmg/LNG≤ 20099NA
Ironmg/LNG≤ 0.30.009NA
Leadmg/L≤ 0.01NG0.0003100%
Magnesiummg/LNGNG11.06NA
Manganesemg/L≤ 0.5≤ 0.10.0008100%
pHpH unitsNG6.5 - 8.57.4NA
Potassiummg/LNGNG3.68NA
Residual Free Chlorinemg/L≤ 5≤ 0.60.4100%
Residual Monochloraminemg/L≤ 5NG<0.1100%
Residual Total Chlorinemg/L≤ 5≤ 0.60.5100%
Sodiummg/LNG≤ 18051.4NA
Sulphatemg/LNG≤ 25040.8NA
Total Dissolved Solidsmg/LNG≤ 600277NA
Trihalomethanesµg/L≤ 250NG113100%
TurbidityNTUNG≤ 5<0.1NA
Zincmg/LNG≤ 30.005NA
Hardness - InternationalPPM or mg/LNGNG99NG
Hardness - English Degrees°eNGNG6.93NG
Hardness - French Degrees°fNGNG9.9NG
Hardness - German Degrees°dHNGNG5.54NG

* Australian Drinking Water Guidelines - 2011 (ADWG).

NA - Not Applicable
NG - No Guideline Value

# Although we aim for 100% compliance, the ADWG recognises that occasional exceedances may occur. Where there are sufficient sample results from a 12 month period, the 95th percentile statistic should be used to determine performance against the guideline value. Any exceedance requires immediate investigation and corrective action as agreed with SA Health.

# Prior to calculating % compliance for health related chemicals individual results are rounded to the same number of significant figures as the guideline value in the ADWG (as prescribed in the ADWG and agreed with SA Health).

Disclaimer: While every effort has been made to ensure the accuracy of the above data, SA Water accepts no liability for and gives no undertakings, guarantees or warranties concerning the use of the data for any purpose.

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  • Major faults

  • Underway

  • Karawirra Av
  • Rostrevor
  • 14/06/2019
  • Water Supply On
  • 14/06/2019 04:49 PM - We are attending to an incident in Rostrevor with no interruption to the water supply. The safety of our crews and customers comes first, and we always aim to minimise inconvenience by restoring services as quickly as we can. Reference Number WO: 06788271.
  • See all major faults

  • Scheduled works

  • Underway
  • Wandana Ave
  • Seaview Downs
  • 17/06/2019
  • Temporary Supply Interruption
  • Estimated start time and water supply off: 02/05/2019 04:01 PM
    Estimated restore time and water supply back on: 28/06/2019 04:01 PM

    We’re improving your services and undertaking maintenance work in Seaview Downs. Sometimes our crews need to temporarily interrupt the water supply to our customers and/or manage traffic while they are working. Temporary traffic management may remain in place until reinstatement of the impacted road is complete. We always aim to minimise inconvenience by restoring services as safely and quickly as we can.


  • See all scheduled works

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