Drinking water in Wattenwil
The drinking water in Wattenwil has a total hardness of 7.3 °dH. Nitrate reaches 1.2 mg/l, the statutory parametric value is 40 mg/l. Measured in supply zone Blattenheid of Wasserversorgung Wattenwil, retrieved on 12/08/2026.
2 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
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.
Blattenheid
Wasserversorgung WattenwilAssigned 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 31/07/2024. 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 | 1.2 mg/l | 40 mg/l | 3 % | Single value · Blattenheid |
| Sulphate | 4.7 mg/l | — | — | Single value · Blattenheid |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 1.2 mg/l | 40 mg/l | 3 % | Single value · Blattenheid |
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 0.1 mg/l | — | — | Single value · Blattenheid |
| Sulphate | 4.7 mg/l | — | — | Single value · Blattenheid |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 46.7 mg/l | — | — | Single value · Blattenheid |
| Magnesium | 3.4 mg/l | — | — | Single value · Blattenheid |
| Total hardness | 13.1 °fH | — | — | Single value · Blattenheid |
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: 3665
Show 1 more supply zone
Stafelalp
Wasserversorgung WattenwilAssigned 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 31/07/2024. 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 | 3.6 mg/l | 40 mg/l | 9 % | Single value · Stafelalp |
| Sulphate | 3.0 mg/l | — | — | Single value · Stafelalp |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 3.6 mg/l | 40 mg/l | 9 % | Single value · Stafelalp |
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 1.0 mg/l | — | — | Single value · Stafelalp |
| Sulphate | 3.0 mg/l | — | — | Single value · Stafelalp |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 109.09 mg/l | — | — | Single value · Stafelalp |
| Magnesium | 9.7 mg/l | — | — | Single value · Stafelalp |
| Total hardness | 31.4 °fH | — | — | Single value · Stafelalp |
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: 3665
Frequently asked questions about drinking water in Wattenwil
- How hard is the water in Wattenwil?
- Wasserversorgung Wattenwil publishes a total hardness of 13.1 °fH for the supply zone Blattenheid — that corresponds to 7.3 °dH. Hardness indicates how much calcium and magnesium are dissolved in the water. It is not a quality assessment: there is no parametric value for hardness. Basis: Publication by the water supplier, retrieved on 12/08/2026.
- How much nitrate is in the drinking water in Wattenwil?
- Wasserversorgung Wattenwil publishes a nitrate value of 1.2 mg/l for the supply zone Blattenheid. The statutory parametric value is 40 mg/l; the measured value represents 3 % of the parametric value. Basis: Publication by the water supplier, retrieved on 12/08/2026.
- Who supplies the drinking water in Wattenwil?
- Wasserversorgung Wattenwil. The values shown here come from the supply zone Blattenheid 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.