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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 4 December, 2017

 

 

Hardness

System

mg/L as CaCO3

mmol/l

°d (German)

°f (French)

Allendale

99

1.0

6

10

Avoca

190

1.9

11

19

Ballan

100

1.0

6

10

Ballarat and District

100

1.0

6

10

Beaufort

16

0.2

1

2

Blackwood and Barry's Reef

22

0.2

1

2

Broomfield

99

1.0

6

10

Clunes

65

0.6

4

7

Creswick

100

1.0

6

10

Daylesford

17

0.2

1

2

Dean

87

0.9

5

9

Hepburn and Hepburn Springs

17

0.2

1

2

Kingston

99

1.0

6

10

Landsborough

31

0.3

2

3

Learmonth

130

1.3

7

13

Lexton

160

1.6

9

16

Maryborough and District

150

1.5

8

15

Newlyn

99

1.0

6

10

Smeaton

99

1.0

6

10

Springmount

99

1.0

6

10

Waubra

450

4.5

25

45

 

 

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.