Drinking water in Niederrohrdorf
One supply zone, water supplier: Wasserversorgung Niederrohrdorf.
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.
Wasserversorgung Niederrohrdorf
Wasserversorgung NiederrohrdorfAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2024. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 18.7 mg/l | 40 mg/l | 47 % | Mean · Wasserversorgung Niederrohrdorf |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Wasserversorgung Niederrohrdorf |
| Sulphate | 19 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Sodium | 9 mg/l | 200 mg/l | 5 % | Mean · Wasserversorgung Niederrohrdorf |
Show all recorded parameters (21 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 2.56 KBE/ml | 300 1/ml | — | Mean · Wasserversorgung Niederrohrdorf |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Wasserversorgung Niederrohrdorf |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Wasserversorgung Niederrohrdorf |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 18.7 mg/l | 40 mg/l | 47 % | Mean · Wasserversorgung Niederrohrdorf |
PFAS (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorohexane sulfonic acid (PFHxS) | 0.013 µg/l | 0.3 µg/l | 4 % | Mean · Wasserversorgung Niederrohrdorf |
| Perfluorooctanesulfonic acid (PFOS) | 0.01 µg/l | 0.3 µg/l | 3 % | Mean · Wasserversorgung Niederrohrdorf |
| Perfluorooctanoic acid (PFOA) | 0.0025 µg/l | 0.5 µg/l | 0.5 % | Mean · Wasserversorgung Niederrohrdorf |
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | 0.02 µg/l | 0.1 µg/l | 20 % | Mean · Wasserversorgung Niederrohrdorf |
| Chlorothalonil metabolite R471811 | 0.035 µg/l | 0.1 µg/l | 35 % | Mean · Wasserversorgung Niederrohrdorf |
Indicator parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 20 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Conductivity (25 °C) | 720.93 µS/cm | — | — | Mean · Wasserversorgung Niederrohrdorf |
| pH | 7.27 | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Sodium | 9 mg/l | 200 mg/l | 5 % | Mean · Wasserversorgung Niederrohrdorf |
| Sulphate | 19 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Temperature | 12.29 °C | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Turbidity | 0.1 TE/F | — | — | Mean · Wasserversorgung Niederrohrdorf |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 114 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Hydrogen carbonate | 386.7 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Magnesium | 16.9 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Potassium | 2.285 mg/l | — | — | Mean · Wasserversorgung Niederrohrdorf |
| Total hardness | 35.5 °fH | — | — | Mean · Wasserversorgung Niederrohrdorf |
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: 5443
Frequently asked questions about drinking water in Niederrohrdorf
- How hard is the water in Niederrohrdorf?
- Wasserversorgung Niederrohrdorf publishes a total hardness of 35.5 °fH for the supply zone Wasserversorgung Niederrohrdorf — that corresponds to 19.9 °dH. 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: 2024, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Niederrohrdorf?
- Wasserversorgung Niederrohrdorf publishes a nitrate value of 18.7 mg/l for the supply zone Wasserversorgung Niederrohrdorf. The statutory parametric value is 40 mg/l; the measured value represents 47 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.
- Who supplies the drinking water in Niederrohrdorf?
- Wasserversorgung Niederrohrdorf. The values shown here come from the supply zone Wasserversorgung Niederrohrdorf 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.