Drinking water in Glattfelden, Zweidlen
One supply zone, water supplier: Wasserversorgung Glattfelden.
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.
Gemeinde Glattfelden
Wasserversorgung GlattfeldenAssigned 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 | 13.9 mg/l | 40 mg/l | 35 % | Mean · Gemeinde Glattfelden |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gemeinde Glattfelden |
| Sulphate | 27.8 mg/l | — | — | Mean · Gemeinde Glattfelden |
| Sodium | 15.7 mg/l | 200 mg/l | 8 % | Mean · Gemeinde Glattfelden |
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 | 7 KBE/ml | 300 1/ml | — | Mean · Gemeinde Glattfelden |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gemeinde Glattfelden |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gemeinde Glattfelden |
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | < 0.1 mg/l below limit of quantification | 1.5 mg/l | < 7 % * | Mean · Gemeinde Glattfelden |
| Nitrate | 13.9 mg/l | 40 mg/l | 35 % | Mean · Gemeinde Glattfelden |
* 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.
PFAS (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorohexane sulfonic acid (PFHxS) | < 0.1 µg/l below limit of quantification | 0.3 µg/l | < 33 % * | Mean · Gemeinde Glattfelden |
| Perfluorooctanesulfonic acid (PFOS) | < 0.1 µg/l below limit of quantification | 0.3 µg/l | < 33 % * | Mean · Gemeinde Glattfelden |
| Perfluorooctanoic acid (PFOA) | < 0.1 µg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Gemeinde Glattfelden |
* 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.
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | 0.022 µg/l | 0.1 µg/l | 22 % | Mean · Gemeinde Glattfelden |
| Chlorothalonil metabolite R471811 | 0.21 µg/l | 0.1 µg/l | 210 % Mean above the parametric value | Mean · Gemeinde Glattfelden |
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.
Indicator parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 25.2 mg/l | — | — | Mean · Gemeinde Glattfelden |
| Conductivity (25 °C) | 550.5 µS/cm | — | — | Mean · Gemeinde Glattfelden |
| pH | 7.5 | — | — | Mean · Gemeinde Glattfelden |
| Sodium | 15.7 mg/l | 200 mg/l | 8 % | Mean · Gemeinde Glattfelden |
| Sulphate | 27.8 mg/l | — | — | Mean · Gemeinde Glattfelden |
| Temperature | 7.6 °C | — | — | Mean · Gemeinde Glattfelden |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 85.2 mg/l | — | — | Mean · Gemeinde Glattfelden |
| Magnesium | 19.6 mg/l | — | — | Mean · Gemeinde Glattfelden |
| Potassium | 2.9 mg/l | — | — | Mean · Gemeinde Glattfelden |
| Spectral absorption coefficient 254 nm (SAC 254) | 0.72 1/m | — | — | Mean · Gemeinde Glattfelden |
| Total hardness | 28.7 °fH | — | — | Mean · Gemeinde Glattfelden |
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: 8192
Frequently asked questions about drinking water in Glattfelden, Zweidlen
- How hard is the water in Glattfelden, Zweidlen?
- Wasserversorgung Glattfelden publishes a total hardness of 28.7 °fH for the supply zone Gemeinde Glattfelden — that corresponds to 16.1 °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: 2025, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Glattfelden, Zweidlen?
- Wasserversorgung Glattfelden publishes a nitrate value of 13.9 mg/l for the supply zone Gemeinde Glattfelden. The statutory parametric value is 40 mg/l; the measured value represents 35 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Glattfelden, Zweidlen?
- Wasserversorgung Glattfelden. The values shown here come from the supply zone Gemeinde Glattfelden 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.