Drinking water in Oberdorf SO, Weissenstein b. Solothurn
One supply zone, water supplier: Oberdorf.
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 Oberdorf
OberdorfAssigned 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 | 4.6 mg/l | 40 mg/l | 12 % | Mean · Gemeinde Oberdorf |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gemeinde Oberdorf |
| Sodium | 1.75 mg/l | 200 mg/l | 0.9 % | Mean · Gemeinde Oberdorf |
Show all recorded parameters (15 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 25 KBE/ml | 300 1/ml | — | Mean · Gemeinde Oberdorf |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gemeinde Oberdorf |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gemeinde Oberdorf |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 4.6 mg/l | 40 mg/l | 12 % | Mean · Gemeinde Oberdorf |
PFAS (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorohexane sulfonic acid (PFHxS) | < 0.001 µg/l below limit of quantification | 0.3 µg/l | < 0.3 % * | Mean · Gemeinde Oberdorf |
| Perfluorooctanesulfonic acid (PFOS) | 0.001 µg/l | 0.3 µg/l | 0.3 % | Mean · Gemeinde Oberdorf |
| Perfluorooctanoic acid (PFOA) | < 0.001 µg/l below limit of quantification | 0.5 µg/l | < 0.2 % * | Mean · Gemeinde Oberdorf |
* 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 | < 0.02 µg/l below limit of quantification | 0.1 µg/l | < 20 % * | Mean · Gemeinde Oberdorf |
| Chlorothalonil metabolite R471811 | < 0.02 µg/l below limit of quantification | 0.1 µg/l | < 20 % * | Mean · Gemeinde Oberdorf |
* 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 (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 1.4 mg/l | — | — | Mean · Gemeinde Oberdorf |
| pH | 7.56 | — | — | Mean · Gemeinde Oberdorf |
| Sodium | 1.75 mg/l | 200 mg/l | 0.9 % | Mean · Gemeinde Oberdorf |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 0.5 mg/l | — | — | Mean · Gemeinde Oberdorf |
| Magnesium | 4 mg/l | — | — | Mean · Gemeinde Oberdorf |
| Total hardness | 23 °fH | — | — | Mean · Gemeinde Oberdorf |
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: 4515
Frequently asked questions about drinking water in Oberdorf SO, Weissenstein b. Solothurn
- How hard is the water in Oberdorf SO, Weissenstein b. Solothurn?
- Oberdorf publishes a total hardness of 23 °fH for the supply zone Gemeinde Oberdorf — that corresponds to 12.9 °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: 2026, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Oberdorf SO, Weissenstein b. Solothurn?
- Oberdorf publishes a nitrate value of 4.6 mg/l for the supply zone Gemeinde Oberdorf. The statutory parametric value is 40 mg/l; the measured value represents 12 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
- Who supplies the drinking water in Oberdorf SO, Weissenstein b. Solothurn?
- Oberdorf. The values shown here come from the supply zone Gemeinde Oberdorf 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.