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Results of Drinking Water Sampling

Long-term studies have shown that Vienna's drinking water does not present any pesticide residues.

Explanations:
*) Parameter value according to Drinking Water Directive, corresponds to limit value
**) Indicator parameter value according to Drinking Water Directive, corresponds to reference value
<...smaller than

Parameter

Unit

First Vienna Spring Water Main

Second Vienna Spring Water Main

Lobau

Moosbrunn

Parameter value*)

Indicator parameter value**)

pH value

7.5 to 8.3

7.6 to 8.4

7.3 to 7.8

7.4 to 7.8

6.5 to 9.5

Total hardness (German hardness degree)

°dH

7-12

6 to 8

12 to 16

17 to 19

Carbonate hardness (German hardness degree)

7-12

6 to 8

12 to 15

12 to 13

Level of hardness

I, II, III

I to II

I

II

III

Calcium

mg/l

43 to 58

32 to 40

65 to 83

81 to 95

Magnesium

mg/l

6 to 16

5 to 10

15 to 22

25 to 29

Chloride

mg/l

1 to 5

1 to 2

12 to 18

11 to 15

200

Nitrate

mg/l

4 to 8

2 to 5

1 to 5

14 to 18

Sulphate

mg/l

9 to 24

1 to 9

27 to 39

75 to 86

50

250

Fluoride

mg/l

< 0.1

< 0.1

< 0.1 to 0.13

< 0.1

1.5

Pesticides

mg/l

No pesticides determined within scope of analysis

No pesticides determined within scope of analysis

No pesticides determined within scope of analysis

No pesticides determined within scope of analysis

0.50

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