Drinking water in Grabern, Hollabrunn
5 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. To determine the exact match, look up the postcode.
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.
2020, Altenmarkt
EVN Wasser GesmbHWater hardness
15.1 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,001100 µg/l | 0.1 µg/l | 1 % | Single value · 2020, Altenmarkt |
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Altenmarkt |
| Sulphate | 49 mg/l | 250 mg/l | 20 % | Single value · 2020, Altenmarkt |
| Sodium | 16,2 mg/l | 200 mg/l | 8 % | Single value · 2020, Altenmarkt |
Show all recorded parameters (12 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Altenmarkt |
| Pesticides | < 0,1 µg/l below limit of quantification | 0.1 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value · 2020, Altenmarkt |
PFAS (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,001100 µg/l | 0.1 µg/l | 1 % | Single value · 2020, Altenmarkt |
Indicator parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 30 mg/l | 200 mg/l | 15 % | Single value · 2020, Altenmarkt |
| pH | 7,9 | 6,5–9,5 | — | Single value · 2020, Altenmarkt |
| Sodium | 16,2 mg/l | 200 mg/l | 8 % | Single value · 2020, Altenmarkt |
| Sulphate | 49 mg/l | 250 mg/l | 20 % | Single value · 2020, Altenmarkt |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 70 mg/l | 400 mg/l | 18 % | Single value · 2020, Altenmarkt |
| Carbonate hardness | 11,2 °dH | — | — | Single value · 2020, Altenmarkt |
| Magnesium | 23,2 mg/l | 150 mg/l | 15 % | Single value · 2020, Altenmarkt |
| Potassium | 3,7 mg/l | 50 mg/l | 7 % | Single value · 2020, Altenmarkt |
| Total hardness | 15,1 °dH | — | — | Single value · 2020, Altenmarkt |
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.evn.at/home/wasser/wasserwerte · 2026-02-23 · 2026-02-23 · retrieved on 08/07/2026
Postcodes in this zone: 2020
Show 4 more supply zones
2020, Grabern/Mittergrabern
EVN Wasser GesmbHWater hardness
15 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Grabern/Mittergrabern |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Single value · 2020, Grabern/Mittergrabern |
| Sodium | 15,3 mg/l | 200 mg/l | 8 % | Single value · 2020, Grabern/Mittergrabern |
Show all recorded parameters (11 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Grabern/Mittergrabern |
| Pesticides | < 0,1 µg/l below limit of quantification | 0.1 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value · 2020, Grabern/Mittergrabern |
Indicator parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 32 mg/l | 200 mg/l | 16 % | Single value · 2020, Grabern/Mittergrabern |
| pH | 7,5 | 6,5–9,5 | — | Single value · 2020, Grabern/Mittergrabern |
| Sodium | 15,3 mg/l | 200 mg/l | 8 % | Single value · 2020, Grabern/Mittergrabern |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Single value · 2020, Grabern/Mittergrabern |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 70 mg/l | 400 mg/l | 18 % | Single value · 2020, Grabern/Mittergrabern |
| Carbonate hardness | 11,7 °dH | — | — | Single value · 2020, Grabern/Mittergrabern |
| Magnesium | 22,6 mg/l | 150 mg/l | 15 % | Single value · 2020, Grabern/Mittergrabern |
| Potassium | 3,6 mg/l | 50 mg/l | 7 % | Single value · 2020, Grabern/Mittergrabern |
| Total hardness | 15 °dH | — | — | Single value · 2020, Grabern/Mittergrabern |
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.evn.at/home/wasser/wasserwerte · 2026-02-23 · 2026-02-23 · retrieved on 08/07/2026
Postcodes in this zone: 2020
2020, Kleinstetteldorf
EVN Wasser GesmbHWater hardness
15.1 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,001100 µg/l | 0.1 µg/l | 1 % | Single value · 2020, Kleinstetteldorf |
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Kleinstetteldorf |
| Sulphate | 49 mg/l | 250 mg/l | 20 % | Single value · 2020, Kleinstetteldorf |
| Sodium | 16,2 mg/l | 200 mg/l | 8 % | Single value · 2020, Kleinstetteldorf |
Show all recorded parameters (12 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Kleinstetteldorf |
| Pesticides | < 0,1 µg/l below limit of quantification | 0.1 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value · 2020, Kleinstetteldorf |
PFAS (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,001100 µg/l | 0.1 µg/l | 1 % | Single value · 2020, Kleinstetteldorf |
Indicator parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 30 mg/l | 200 mg/l | 15 % | Single value · 2020, Kleinstetteldorf |
| pH | 7,9 | 6,5–9,5 | — | Single value · 2020, Kleinstetteldorf |
| Sodium | 16,2 mg/l | 200 mg/l | 8 % | Single value · 2020, Kleinstetteldorf |
| Sulphate | 49 mg/l | 250 mg/l | 20 % | Single value · 2020, Kleinstetteldorf |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 70 mg/l | 400 mg/l | 18 % | Single value · 2020, Kleinstetteldorf |
| Carbonate hardness | 11,2 °dH | — | — | Single value · 2020, Kleinstetteldorf |
| Magnesium | 23,2 mg/l | 150 mg/l | 15 % | Single value · 2020, Kleinstetteldorf |
| Potassium | 3,7 mg/l | 50 mg/l | 7 % | Single value · 2020, Kleinstetteldorf |
| Total hardness | 15,1 °dH | — | — | Single value · 2020, Kleinstetteldorf |
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.evn.at/home/wasser/wasserwerte · 2026-02-23 · 2026-02-23 · retrieved on 08/07/2026
Postcodes in this zone: 2020
2020, Obergrabern
EVN Wasser GesmbHWater hardness
15 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Obergrabern |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Single value · 2020, Obergrabern |
| Sodium | 15,3 mg/l | 200 mg/l | 8 % | Single value · 2020, Obergrabern |
Show all recorded parameters (11 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Obergrabern |
| Pesticides | < 0,1 µg/l below limit of quantification | 0.1 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value · 2020, Obergrabern |
Indicator parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 32 mg/l | 200 mg/l | 16 % | Single value · 2020, Obergrabern |
| pH | 7,5 | 6,5–9,5 | — | Single value · 2020, Obergrabern |
| Sodium | 15,3 mg/l | 200 mg/l | 8 % | Single value · 2020, Obergrabern |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Single value · 2020, Obergrabern |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 70 mg/l | 400 mg/l | 18 % | Single value · 2020, Obergrabern |
| Carbonate hardness | 11,7 °dH | — | — | Single value · 2020, Obergrabern |
| Magnesium | 22,6 mg/l | 150 mg/l | 15 % | Single value · 2020, Obergrabern |
| Potassium | 3,6 mg/l | 50 mg/l | 7 % | Single value · 2020, Obergrabern |
| Total hardness | 15 °dH | — | — | Single value · 2020, Obergrabern |
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.evn.at/home/wasser/wasserwerte · 2026-02-23 · 2026-02-23 · retrieved on 08/07/2026
Postcodes in this zone: 2020
2020, Windpassing
EVN Wasser GesmbHWater hardness
15 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Windpassing |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Single value · 2020, Windpassing |
| Sodium | 15,3 mg/l | 200 mg/l | 8 % | Single value · 2020, Windpassing |
Show all recorded parameters (11 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14 mg/l | 50 mg/l | 28 % | Single value · 2020, Windpassing |
| Pesticides | < 0,1 µg/l below limit of quantification | 0.1 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value · 2020, Windpassing |
Indicator parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 32 mg/l | 200 mg/l | 16 % | Single value · 2020, Windpassing |
| pH | 7,5 | 6,5–9,5 | — | Single value · 2020, Windpassing |
| Sodium | 15,3 mg/l | 200 mg/l | 8 % | Single value · 2020, Windpassing |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Single value · 2020, Windpassing |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 70 mg/l | 400 mg/l | 18 % | Single value · 2020, Windpassing |
| Carbonate hardness | 11,7 °dH | — | — | Single value · 2020, Windpassing |
| Magnesium | 22,6 mg/l | 150 mg/l | 15 % | Single value · 2020, Windpassing |
| Potassium | 3,6 mg/l | 50 mg/l | 7 % | Single value · 2020, Windpassing |
| Total hardness | 15 °dH | — | — | Single value · 2020, Windpassing |
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.evn.at/home/wasser/wasserwerte · 2026-02-23 · 2026-02-23 · retrieved on 08/07/2026
Postcodes in this zone: 2020
Frequently asked questions about drinking water in Grabern, Hollabrunn
- How hard is the water in Grabern, Hollabrunn?
- EVN Wasser GesmbH publishes a total hardness of 15.1 °dH for the supply zone 2020, Altenmarkt (hardness range hard). The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2026-02-23, retrieved on 08/07/2026.
- How much nitrate is in the drinking water in Grabern, Hollabrunn?
- EVN Wasser GesmbH publishes a nitrate value of 14 mg/l for the supply zone 2020, Altenmarkt. The statutory parametric value is 50 mg/l; the measured value represents 28 % of the parametric value. Basis: 2026-02-23, retrieved on 08/07/2026.
- Are PFAS detectable in the drinking water in Grabern, Hollabrunn?
- EVN Wasser GesmbH publishes for the supply zone 2020, Altenmarkt a sum value PFAS-20 of 0,001100 µg/l. The statutory parametric value is 0.1 µg/l; the measured value represents 1 % of the parametric value. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: 2026-02-23, retrieved on 08/07/2026.
- Who supplies the drinking water in Grabern, Hollabrunn?
- EVN Wasser GesmbH. The values shown here come from the supply zone 2020, Altenmarkt 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.