Drinking water in Pura
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.
Assigned 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 | 20.4 mg/l | 40 mg/l | 51 % | Mean · Pura |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Pura |
| Sulphate | 12.7 mg/l | — | — | Mean · Pura |
| Sodium | 10.5 mg/l | 200 mg/l | 5 % | Mean · Pura |
Show all recorded parameters (18 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 69.87 KBE/ml | 300 1/ml | — | Mean · Pura |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Pura |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Pura |
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 · Pura |
| Nitrate | 20.4 mg/l | 40 mg/l | 51 % | Mean · Pura |
* 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 | 14.6 mg/l | — | — | Mean · Pura |
| Conductivity (25 °C) | 199 µS/cm | — | — | Mean · Pura |
| pH | 6.83 | — | — | Mean · Pura |
| Sodium | 10.5 mg/l | 200 mg/l | 5 % | Mean · Pura |
| Sulphate | 12.7 mg/l | — | — | Mean · Pura |
| Temperature | 10.6 °C | — | — | Mean · Pura |
| Turbidity | 0.11 TE/F | — | — | Mean · Pura |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 23 mg/l | — | — | Mean · Pura |
| Dry residue | 149 mg/l | — | — | Mean · Pura |
| Hydrogen carbonate | 80.9 mg/l | — | — | Mean · Pura |
| Magnesium | 6.9 mg/l | — | — | Mean · Pura |
| Potassium | 5.4 mg/l | — | — | Mean · Pura |
| Total hardness | 8.6 °fH | — | — | Mean · Pura |
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: 6984
Show 1 more supply zone
Lugano Integrata
Aziende Industriali di Lugano (AIL) SAAssigned 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 31/12/2024. 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 | 4.8 mg/l | 40 mg/l | 12 % | Mean · Lugano Integrata |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Lugano Integrata |
| Sulphate | 16.9 mg/l | — | — | Mean · Lugano Integrata |
| Sodium | 4.2 mg/l | 200 mg/l | 2 % | Mean · Lugano Integrata |
Show all recorded parameters (23 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 51 KBE/ml | 300 1/ml | — | Mean · Lugano Integrata |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Lugano Integrata |
| Intestinal enterococci | 1 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Lugano Integrata |
An exceedance of a parametric value does not automatically mean a health risk; the statutory parametric values include safety margins. Assessment and any measures are the responsibility of the competent health authority of the respective country.
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 · Lugano Integrata |
| Nitrate | 4.8 mg/l | 40 mg/l | 12 % | Mean · Lugano Integrata |
* 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 · Lugano Integrata |
| Chlorothalonil metabolite R471811 | 0.02 µg/l | 0.1 µg/l | 20 % | Mean · Lugano Integrata |
* 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 (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 4.7 mg/l | — | — | Mean · Lugano Integrata |
| Conductivity (25 °C) | 238 µS/cm | — | — | Mean · Lugano Integrata |
| Iron | < 0.01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Lugano Integrata |
| Manganese | < 0.01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Mean · Lugano Integrata |
| Oxidisability | 1 mg KMnO4/l | — | — | Mean · Lugano Integrata |
| pH | 7.9 | — | — | Mean · Lugano Integrata |
| Sodium | 4.2 mg/l | 200 mg/l | 2 % | Mean · Lugano Integrata |
| Sulphate | 16.9 mg/l | — | — | Mean · Lugano Integrata |
| Temperature | 12.2 °C | — | — | Mean · Lugano Integrata |
| Turbidity | 0.2 TE/F | — | — | Mean · Lugano Integrata |
* 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.
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 33.7 mg/l | — | — | Mean · Lugano Integrata |
| Dissolved organic carbon (DOC) | 0.2 mg/l | — | — | Mean · Lugano Integrata |
| Dry residue | 178 mg/l | — | — | Mean · Lugano Integrata |
| Magnesium | 11.1 mg/l | — | — | Mean · Lugano Integrata |
| Potassium | 1.4 mg/l | — | — | Mean · Lugano Integrata |
| Total hardness | 13 °fH | — | — | Mean · Lugano Integrata |
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: 6984
Frequently asked questions about drinking water in Pura
- How hard is the water in Pura?
- Aziende Industriali di Lugano (AIL) SA publishes a total hardness of 8.6 °fH for the supply zone Pura — that corresponds to 4.8 °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 Pura?
- Aziende Industriali di Lugano (AIL) SA publishes a nitrate value of 20.4 mg/l for the supply zone Pura. The statutory parametric value is 40 mg/l; the measured value represents 51 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Pura?
- Aziende Industriali di Lugano (AIL) SA. The values shown here come from the supply zone Pura 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.