How hard is the water in Postcode 4894?

Wassergenossenschaft Rabenschwand publishes a total hardness of 18.1 °dH for the supply zone Oberhofen am Irrsee. Hardness indicates how much calcium and magnesium are dissolved in the water. It is not a quality assessment: there is no parametric value for hardness. Basis: Publication by the water supplier, retrieved on 14/08/2026.

How much nitrate is in the drinking water in Postcode 4894?

Wassergenossenschaft Rabenschwand publishes a nitrate value of 5,62 mg/l for the supply zone Oberhofen am Irrsee. The statutory parametric value is 50 mg/l; the measured value represents 11 % of the parametric value. Basis: Publication by the water supplier, retrieved on 14/08/2026.

Who supplies the drinking water in Postcode 4894?

Wassergenossenschaft Rabenschwand. The values shown here come from the supply zone Oberhofen am Irrsee and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

Drinking water in 4894 (Austria)

One supply zone, water supplier: Wassergenossenschaft Rabenschwand.

The values come from the Austrian drinking water database, to which water suppliers report voluntarily. In each case the highest value of the published range is given.

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.

< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.

Oberhofen am Irrsee

Wassergenossenschaft Rabenschwand

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

18.1 °dH

Key values Oberhofen am Irrsee
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	5,62 mg/l	50 mg/l	11 %	Single value
Sodium	1,70 mg/l	200 mg/l	0.8 %	Single value

Show all recorded parameters (7 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Oberhofen am Irrsee
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	5,62 mg/l	50 mg/l	11 %	Single value

Indicator parameters (2)

Indicator parameters – Oberhofen am Irrsee
Parameter	Value	Parametric value	Share of the parametric value	Reference
Conductivity (25 °C)	523 µS/cm	2,500 µS/cm	—	Single value
Sodium	1,70 mg/l	200 mg/l	0.8 %	Single value

Further parameters (4)

Further parameters – Oberhofen am Irrsee
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	102 mg/l	400 mg/l	26 %	Single value
Magnesium	16,8 mg/l	150 mg/l	11 %	Single value
Potassium	2,41 mg/l	50 mg/l	5 %	Single value
Total hardness	18,1 °dH	—	—	Single value

Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.

Source: https://www.ooewasser.at/de/wassergenossenschaft/wassergenossenschaft.rabenschwand?xtxsearchselecthit=1 · Datum der Probenahme: 15.06.2026 · retrieved on 14/08/2026

Frequent questions about postcode 4894

How hard is the water in Postcode 4894?: Wassergenossenschaft Rabenschwand publishes a total hardness of 18.1 °dH for the supply zone Oberhofen am Irrsee. Hardness indicates how much calcium and magnesium are dissolved in the water. It is not a quality assessment: there is no parametric value for hardness. Basis: Publication by the water supplier, retrieved on 14/08/2026.
How much nitrate is in the drinking water in Postcode 4894?: Wassergenossenschaft Rabenschwand publishes a nitrate value of 5,62 mg/l for the supply zone Oberhofen am Irrsee. The statutory parametric value is 50 mg/l; the measured value represents 11 % of the parametric value. Basis: Publication by the water supplier, retrieved on 14/08/2026.
Who supplies the drinking water in Postcode 4894?: Wassergenossenschaft Rabenschwand. The values shown here come from the supply zone Oberhofen am Irrsee and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

General questions — how current the data is, limit of quantification, parametric values, who is behind this site — are answered under Questions & answers.