Drinking water in Oberurnen
One supply zone, water supplier: Wasserversorgung Glarus - Nord.
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.
Oberurnen
Wasserversorgung Glarus - NordAssigned 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 | 5.5 mg/l | 40 mg/l | 14 % | Mean · Oberurnen |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Oberurnen |
| Sulphate | 1.2 mg/l | — | — | Mean · Oberurnen |
| Sodium | < 2 mg/l below limit of quantification | 200 mg/l | < 1 % * | Mean · Oberurnen |
* 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.
Show all recorded parameters (18 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 0 KBE/ml | 300 1/ml | — | Mean · Oberurnen |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Oberurnen |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Oberurnen |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 5.5 mg/l | 40 mg/l | 14 % | Mean · Oberurnen |
Indicator parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 1.2 mg/l | — | — | Mean · Oberurnen |
| Conductivity (25 °C) | 340 µS/cm | — | — | Mean · Oberurnen |
| Iron | 0.727 mg/l | 0.2 mg/l | 364 % Mean above the parametric value | Mean · Oberurnen |
| Manganese | 0 mg/l | 50 µg/l | 0 % | Mean · Oberurnen |
| pH | 7.6 | — | — | Mean · Oberurnen |
| Sodium | < 2 mg/l below limit of quantification | 200 mg/l | < 1 % * | Mean · Oberurnen |
| Sulphate | 1.2 mg/l | — | — | Mean · Oberurnen |
| Temperature | 7 °C | — | — | Mean · Oberurnen |
| Turbidity | 0.1 TE/F | — | — | Mean · Oberurnen |
* 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.
Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 71.8 mg/l | — | — | Mean · Oberurnen |
| Dissolved organic carbon (DOC) | 0.24 mg/l | — | — | Mean · Oberurnen |
| Magnesium | 6.39 mg/l | — | — | Mean · Oberurnen |
| Potassium | 0.727 mg/l | — | — | Mean · Oberurnen |
| Total hardness | 20.4 °fH | — | — | Mean · Oberurnen |
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: 8868
Frequently asked questions about drinking water in Oberurnen
- How hard is the water in Oberurnen?
- Wasserversorgung Glarus - Nord publishes a total hardness of 20.4 °fH for the supply zone Oberurnen — that corresponds to 11.4 °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: 2026, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Oberurnen?
- Wasserversorgung Glarus - Nord publishes a nitrate value of 5.5 mg/l for the supply zone Oberurnen. The statutory parametric value is 40 mg/l; the measured value represents 14 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
- Who supplies the drinking water in Oberurnen?
- Wasserversorgung Glarus - Nord. The values shown here come from the supply zone Oberurnen 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.