Drinking water in Herzogsdorf, Oberneukirchen, Zwettl an der Rodl
One supply zone, water supplier: Fernwasserverband Mühlviertel.
How to read the share of the parametric value
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.
at-herzogsdorf gesamt
Fernwasserverband MühlviertelAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 11,00 mg/l | 50 mg/l | 22 % | Single value |
| Sulphate | 11,00 mg/l | 250 mg/l | 4 % | Single value |
| Sodium | 8,90 mg/l | 200 mg/l | 4 % | Single value |
Show all recorded parameters (22 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 KBE/100 ml | 0/100 ml | — | Single value |
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 11,00 mg/l | 50 mg/l | 22 % | Single value |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.1 mg/l | < 20 % * | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Indicator parameters (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | < 0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Single value |
| Chloride | 14,00 mg/l | 200 mg/l | 7 % | Single value |
| Coliform bacteria | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Colour | klar, farblos | — | — | Single value |
| Conductivity (25 °C) | 245 µS/cm | 2,500 µS/cm | — | Single value |
| Iron | < 0,03 mg/l below limit of quantification | 0.2 mg/l | < 15 % * | Single value |
| Manganese | < 0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| Odour | kein | — | — | Single value |
| pH | 7,68 | 6,5–9,5 | — | Single value |
| Sodium | 8,90 mg/l | 200 mg/l | 4 % | Single value |
| Sulphate | 11,00 mg/l | 250 mg/l | 4 % | Single value |
| Temperature | 12,6 ° C | — | — | Single value |
| Total organic carbon (TOC) | 0,82 mg/l | — | — | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,00 mmol/l | — | — | Single value |
| Calcium | 34,70 mg/l | 400 mg/l | 9 % | Single value |
| Carbonate hardness | 5,70 ° dH | — | — | Single value |
| Magnesium | 6,60 mg/l | 150 mg/l | 4 % | Single value |
| Potassium | 2,40 mg/l | 50 mg/l | 5 % | Single value |
| Total hardness | 6,40 °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.
Postcodes in this zone: 4181
Frequently asked questions about drinking water in Herzogsdorf, Oberneukirchen, Zwettl an der Rodl
- How hard is the water in Herzogsdorf, Oberneukirchen, Zwettl an der Rodl?
- Fernwasserverband Mühlviertel publishes a total hardness of 6.4 °dH for the supply zone at-herzogsdorf gesamt (hardness range soft). 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: Publication by the water supplier, retrieved on 14/08/2026.
- How much nitrate is in the drinking water in Herzogsdorf, Oberneukirchen, Zwettl an der Rodl?
- Fernwasserverband Mühlviertel publishes a nitrate value of 11,00 mg/l for the supply zone at-herzogsdorf gesamt. The statutory parametric value is 50 mg/l; the measured value represents 22 % of the parametric value. Basis: Publication by the water supplier, retrieved on 14/08/2026.
- Who supplies the drinking water in Herzogsdorf, Oberneukirchen, Zwettl an der Rodl?
- Fernwasserverband Mühlviertel. The values shown here come from the supply zone at-herzogsdorf gesamt 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.