How hard is the water in Postcode 4111?

Wassergenossenschaft Schwarzgrub publishes a total hardness of 8.5 °dH for the supply zone 4111, Hochbehälter. 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: 2025-10-17, retrieved on 08/08/2026.

How much nitrate is in the drinking water in Postcode 4111?

Wassergenossenschaft Schwarzgrub publishes a nitrate value of 19,3 mg/l for the supply zone 4111, Hochbehälter. The statutory parametric value is 50 mg/l; the measured value represents 39 % of the parametric value. Basis: 2025-10-17, retrieved on 08/08/2026.

Who supplies the drinking water in Postcode 4111?

Wassergenossenschaft Schwarzgrub. The values shown here come from the supply zone 4111, Hochbehälter 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 4111 (Austria)

One supply zone, water supplier: Wassergenossenschaft Schwarzgrub.

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.

4111, Hochbehälter

Wassergenossenschaft Schwarzgrub

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

Water hardness

8.5 °dH

Key values 4111, Hochbehälter
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	19,3 mg/l	50 mg/l	39 %	Single value · 4111, Hochbehälter
Sulphate	35,6 mg/l	250 mg/l	14 %	Single value · 4111, Hochbehälter
Sodium	10 mg/l	200 mg/l	5 %	Single value · 4111, Hochbehälter

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4111, Hochbehälter
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	19,3 mg/l	50 mg/l	39 %	Single value · 4111, Hochbehälter

Indicator parameters (5)

Indicator parameters – 4111, Hochbehälter
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	5,8 mg/l	200 mg/l	3 %	Single value · 4111, Hochbehälter
Conductivity (25 °C)	341 µS/cm	2,500 µS/cm	—	Single value · 4111, Hochbehälter
pH	7,8	6,5–9,5	—	Single value · 4111, Hochbehälter
Sodium	10 mg/l	200 mg/l	5 %	Single value · 4111, Hochbehälter
Sulphate	35,6 mg/l	250 mg/l	14 %	Single value · 4111, Hochbehälter

Further parameters (5)

Further parameters – 4111, Hochbehälter
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	43,5 mg/l	400 mg/l	11 %	Single value · 4111, Hochbehälter
Carbonate hardness	7,8 °dH	—	—	Single value · 4111, Hochbehälter
Magnesium	10,5 mg/l	150 mg/l	7 %	Single value · 4111, Hochbehälter
Potassium	0,9 mg/l	50 mg/l	2 %	Single value · 4111, Hochbehälter
Total hardness	8,5 °dH	—	—	Single value · 4111, Hochbehälter

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.trinkwasserinfo.at/datenbank?no_cache=1&tx_abatrinkwdb_pi1_anlagenid=16261003&tx_abatrinkwdb_pi1_plz=4111&tx_abatrinkwdb_pi1_suche=1&cHash=9c1908d0387a24f9a93507f498864771 · 2025-10-17 · 2025-10-17 · retrieved on 08/08/2026

Frequent questions about postcode 4111

How hard is the water in Postcode 4111?: Wassergenossenschaft Schwarzgrub publishes a total hardness of 8.5 °dH for the supply zone 4111, Hochbehälter. 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: 2025-10-17, retrieved on 08/08/2026.
How much nitrate is in the drinking water in Postcode 4111?: Wassergenossenschaft Schwarzgrub publishes a nitrate value of 19,3 mg/l for the supply zone 4111, Hochbehälter. The statutory parametric value is 50 mg/l; the measured value represents 39 % of the parametric value. Basis: 2025-10-17, retrieved on 08/08/2026.
Who supplies the drinking water in Postcode 4111?: Wassergenossenschaft Schwarzgrub. The values shown here come from the supply zone 4111, Hochbehälter 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.