Drinking water in Wettingen
3 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.
Hauptzone
Energie Wettingen AGAssigned 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 mg/l | 40 mg/l | 33 % | Mean · Hauptzone |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Hauptzone |
| Sulphate | 18.5 mg/l | — | — | Mean · Hauptzone |
Show all recorded parameters (16 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 4 KBE/ml | 300 1/ml | — | Mean · Hauptzone |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Hauptzone |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Hauptzone |
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 · Hauptzone |
| Nitrate | 13 mg/l | 40 mg/l | 33 % | Mean · Hauptzone |
* 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) | 0.007 µg/l | 0.3 µg/l | 2 % | Mean · Hauptzone |
| Perfluorooctanesulfonic acid (PFOS) | 0.008 µg/l | 0.3 µg/l | 3 % | Mean · Hauptzone |
| Perfluorooctanoic acid (PFOA) | 0.003 µg/l | 0.5 µg/l | 0.6 % | Mean · Hauptzone |
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 · Hauptzone |
| Chlorothalonil metabolite R471811 | 0.06 µg/l | 0.1 µg/l | 60 % | Mean · Hauptzone |
* 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 (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 17.1 mg/l | — | — | Mean · Hauptzone |
| Sulphate | 18.5 mg/l | — | — | Mean · Hauptzone |
Further parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 93.9 mg/l | — | — | Mean · Hauptzone |
| Magnesium | 17 mg/l | — | — | Mean · Hauptzone |
| Potassium | 1.6 mg/l | — | — | Mean · Hauptzone |
| Total hardness | 30.4 °fH | — | — | Mean · Hauptzone |
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: 5430
Show 2 more supply zones
Hochzone
Energie Wettingen AGAssigned 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 | 15 mg/l | 40 mg/l | 38 % | Mean · Hochzone |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Hochzone |
Show all recorded parameters (7 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 3 KBE/ml | 300 1/ml | — | Mean · Hochzone |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Hochzone |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Hochzone |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 15 mg/l | 40 mg/l | 38 % | Mean · Hochzone |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 92.2 mg/l | — | — | Mean · Hochzone |
| Magnesium | 9.8 mg/l | — | — | Mean · Hochzone |
| Total hardness | 27 °fH | — | — | Mean · Hochzone |
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: 5430
Zone Zindelen
Energie Wettingen AGAssigned 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 | 15 mg/l | 40 mg/l | 38 % | Mean · Zone Zindelen |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Zone Zindelen |
Show all recorded parameters (7 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 4 KBE/ml | 300 1/ml | — | Mean · Zone Zindelen |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Zone Zindelen |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Zone Zindelen |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 15 mg/l | 40 mg/l | 38 % | Mean · Zone Zindelen |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 92.2 mg/l | — | — | Mean · Zone Zindelen |
| Magnesium | 9.8 mg/l | — | — | Mean · Zone Zindelen |
| Total hardness | 27 °fH | — | — | Mean · Zone Zindelen |
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: 5430
Frequently asked questions about drinking water in Wettingen
- How hard is the water in Wettingen?
- Energie Wettingen AG publishes a total hardness of 30.4 °fH for the supply zone Hauptzone — that corresponds to 17 °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 Wettingen?
- Energie Wettingen AG publishes a nitrate value of 13 mg/l for the supply zone Hauptzone. The statutory parametric value is 40 mg/l; the measured value represents 33 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Wettingen?
- Energie Wettingen AG. The values shown here come from the supply zone Hauptzone 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.