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Water hardness

Water hardness refers to the concentration of calcium and magnesium salts in the water. 

User manuals for new appliances, such as dishwashers, sometimes recommend that you check water hardness levels in your water supply before connecting the appliance.

The Australian Drinking Water Guidelines recommend that a 'good' level of hardness (measured as calcium carbonate – CaCO3) is less than 200mg/L.

The below table shows average water hardness levels as at 3 September 2018.

 

 

Hardness

System

mg/L as CaCO3

mmol/l

°d (German)

°f (French)

Allendale

92

0.9

5

9

Avoca

160

1.6

9

16

Ballan

96

1.0

5

10

Ballarat and District

96

1.0

5

10

Beaufort

23

0.2

1

2

Blackwood and Barry's Reef

20

0.2

1

2

Broomfield

92

0.9

5

9

Clunes

67

0.7

4

7

Creswick

96

1.0

5

10

Daylesford

24

0.2

1

2

Dean

82

0.8

5

8

Hepburn and Hepburn Springs

24

0.2

1

2

Kingston

92

0.9

5

9

Landsborough

33

0.3

2

3

Learmonth

110

1.1

6

11

Lexton

170

1.7

10

17

Maryborough and District

180

1.8

10

18

Newlyn

92

0.9

5

9

Smeaton

92

0.9

5

9

Springmount

92

0.9

5

9

Waubra

450

4.5

25

45

Last Updated

4/12/2018

 

Ballarat and district includes the localities of Nerrina, Bungaree, Wallace, Buninyong, Mt Helen, Cardigan Village, Enfield, Fiskville, Glenmore, Gordon, Mt. Egerton, Haddon, Lal Lal, Linton, Napoleons, Sebastopol, Skipton, Smythesdale and Wendouree.

Maryborough and district includes the localities of Alma, Bet Bet, Carisbrook, Daisy Hill, Majorca, Talbot and Timor.

If you have any enquiries or concerns about the quality of your water supply, please contact us on 1800 061 514.