Drinking water in Benzenschwil
One supply zone, water supplier: Wasserversorgung Merenschwand.
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.
Benzenschwil
Wasserversorgung MerenschwandAssigned 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 | < 0.005 mg/l below limit of quantification | 40 mg/l | < < 0.1 % * | Mean · Benzenschwil |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Benzenschwil |
| Sulphate | 13.3 mg/l | — | — | Mean · Benzenschwil |
| Sodium | 4.1 mg/l | 200 mg/l | 2 % | Mean · Benzenschwil |
* 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 (19 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 1 KBE/ml | 300 1/ml | — | Mean · Benzenschwil |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Benzenschwil |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Benzenschwil |
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 · Benzenschwil |
| Nitrate | < 0.005 mg/l below limit of quantification | 40 mg/l | < < 0.1 % * | Mean · Benzenschwil |
* 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 · Benzenschwil |
| Chlorothalonil metabolite R471811 | < 0.02 µg/l below limit of quantification | 0.1 µg/l | < 20 % * | Mean · Benzenschwil |
* 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 (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 4.1 mg/l | — | — | Mean · Benzenschwil |
| Conductivity (25 °C) | 272 µS/cm | — | — | Mean · Benzenschwil |
| pH | 7.69 | — | — | Mean · Benzenschwil |
| Sodium | 4.1 mg/l | 200 mg/l | 2 % | Mean · Benzenschwil |
| Sulphate | 13.3 mg/l | — | — | Mean · Benzenschwil |
| Temperature | 20.2 °C | — | — | Mean · Benzenschwil |
| Turbidity | 0.1 TE/F | — | — | Mean · Benzenschwil |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 44.4 mg/l | — | — | Mean · Benzenschwil |
| Dissolved organic carbon (DOC) | 0.52 mg/l | — | — | Mean · Benzenschwil |
| Magnesium | 4 mg/l | — | — | Mean · Benzenschwil |
| Potassium | 1.4 mg/l | — | — | Mean · Benzenschwil |
| Total hardness | 12.7 °fH | — | — | Mean · Benzenschwil |
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: 5636
Frequently asked questions about drinking water in Benzenschwil
- How hard is the water in Benzenschwil?
- Wasserversorgung Merenschwand publishes a total hardness of 12.7 °fH for the supply zone Benzenschwil — that corresponds to 7.1 °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 Benzenschwil?
- Wasserversorgung Merenschwand publishes a nitrate value of < 0.005 mg/l for the supply zone Benzenschwil. The statutory parametric value is 40 mg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Benzenschwil?
- Wasserversorgung Merenschwand. The values shown here come from the supply zone Benzenschwil 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.