Drinking water in Granges VS
4 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.
Commune de Sierre
OIKEN 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 | 5.6 mg/l | 40 mg/l | 14 % | Mean · Commune de Sierre |
| Escherichia coli (E. coli) | 8 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Commune de Sierre |
| Sulphate | 136.5 mg/l | — | — | Mean · Commune de Sierre |
| Sodium | 4.6 mg/l | 200 mg/l | 2 % | Mean · Commune de Sierre |
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.
Show all recorded parameters (22 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 10 KBE/ml | 300 1/ml | — | Mean · Commune de Sierre |
| Escherichia coli (E. coli) | 8 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Commune de Sierre |
| Intestinal enterococci | 9 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Commune de Sierre |
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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 5.6 mg/l | 40 mg/l | 14 % | Mean · Commune de Sierre |
PFAS (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorohexane sulfonic acid (PFHxS) | 0 µg/l | 0.3 µg/l | 0 % | Mean · Commune de Sierre |
| Perfluorooctanesulfonic acid (PFOS) | 0.0006 µg/l | 0.3 µg/l | 0.2 % | Mean · Commune de Sierre |
| Perfluorooctanoic acid (PFOA) | 0 µg/l | 0.5 µg/l | 0 % | Mean · Commune de Sierre |
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | < 0.025 µg/l below limit of quantification | 0.1 µg/l | < 25 % * | Mean · Commune de Sierre |
| Chlorothalonil metabolite R471811 | 0.098 µg/l | 0.1 µg/l | 98 % | Mean · Commune de Sierre |
* 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 5.7 mg/l | — | — | Mean · Commune de Sierre |
| Conductivity (25 °C) | 441 µS/cm | — | — | Mean · Commune de Sierre |
| Iron | < 0.02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Commune de Sierre |
| Manganese | < 0.0002 mg/l below limit of quantification | 50 µg/l | < 0.4 % * | Mean · Commune de Sierre |
| pH | 7.8 | — | — | Mean · Commune de Sierre |
| Sodium | 4.6 mg/l | 200 mg/l | 2 % | Mean · Commune de Sierre |
| Sulphate | 136.5 mg/l | — | — | Mean · Commune de Sierre |
| Temperature | 11.1 °C | — | — | Mean · Commune de Sierre |
| Turbidity | 0.25 TE/F | — | — | Mean · Commune de Sierre |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 105.2 mg/l | — | — | Mean · Commune de Sierre |
| Magnesium | 17.4 mg/l | — | — | Mean · Commune de Sierre |
| Potassium | 1.1 mg/l | — | — | Mean · Commune de Sierre |
| Total hardness | 26.5 °fH | — | — | Mean · Commune de Sierre |
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: 3977
Show 3 more supply zones
Sion Coteau rive droite
OIKEN 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 | 1 mg/l | 40 mg/l | 3 % | Mean · Sion Coteau rive droite |
| Escherichia coli (E. coli) | 1 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Coteau rive droite |
| Sulphate | 40.8 mg/l | — | — | Mean · Sion Coteau rive droite |
| Sodium | 4.5 mg/l | 200 mg/l | 2 % | Mean · Sion Coteau rive droite |
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.
Show all recorded parameters (17 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 10 KBE/ml | 300 1/ml | — | Mean · Sion Coteau rive droite |
| Escherichia coli (E. coli) | 1 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Coteau rive droite |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Sion Coteau rive droite |
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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 1 mg/l | 40 mg/l | 3 % | Mean · Sion Coteau rive droite |
Indicator parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 0.7 mg/l | — | — | Mean · Sion Coteau rive droite |
| Conductivity (25 °C) | 370 µS/cm | — | — | Mean · Sion Coteau rive droite |
| Iron | < 0.02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Sion Coteau rive droite |
| Manganese | < 0.0002 mg/l below limit of quantification | 50 µg/l | < 0.4 % * | Mean · Sion Coteau rive droite |
| pH | 8 | — | — | Mean · Sion Coteau rive droite |
| Sodium | 4.5 mg/l | 200 mg/l | 2 % | Mean · Sion Coteau rive droite |
| Sulphate | 40.8 mg/l | — | — | Mean · Sion Coteau rive droite |
| Temperature | 9 °C | — | — | Mean · Sion Coteau rive droite |
| Turbidity | < 0.2 TE/F below limit of quantification | — | — | Mean · Sion Coteau rive droite |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 61.7 mg/l | — | — | Mean · Sion Coteau rive droite |
| Magnesium | 28.5 mg/l | — | — | Mean · Sion Coteau rive droite |
| Potassium | 0.6 mg/l | — | — | Mean · Sion Coteau rive droite |
| Total hardness | 21.6 °fH | — | — | Mean · Sion Coteau rive droite |
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: 3977
Sion Coteau rive gauche
OIKEN 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 | 5.4 mg/l | 40 mg/l | 14 % | Mean · Sion Coteau rive gauche |
| Escherichia coli (E. coli) | 6 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Coteau rive gauche |
| Sulphate | 31.8 mg/l | — | — | Mean · Sion Coteau rive gauche |
| Sodium | 39.8 mg/l | 200 mg/l | 20 % | Mean · Sion Coteau rive gauche |
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.
Show all recorded parameters (17 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 10 KBE/ml | 300 1/ml | — | Mean · Sion Coteau rive gauche |
| Escherichia coli (E. coli) | 6 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Coteau rive gauche |
| Intestinal enterococci | 10 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Coteau rive gauche |
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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 5.4 mg/l | 40 mg/l | 14 % | Mean · Sion Coteau rive gauche |
Indicator parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 104.3 mg/l | — | — | Mean · Sion Coteau rive gauche |
| Conductivity (25 °C) | 689 µS/cm | — | — | Mean · Sion Coteau rive gauche |
| Iron | 0.04 mg/l | 0.2 mg/l | 20 % | Mean · Sion Coteau rive gauche |
| Manganese | 0.0007 mg/l | 50 µg/l | 1 % | Mean · Sion Coteau rive gauche |
| pH | 8 | — | — | Mean · Sion Coteau rive gauche |
| Sodium | 39.8 mg/l | 200 mg/l | 20 % | Mean · Sion Coteau rive gauche |
| Sulphate | 31.8 mg/l | — | — | Mean · Sion Coteau rive gauche |
| Temperature | 6.8 °C | — | — | Mean · Sion Coteau rive gauche |
| Turbidity | 0.4 TE/F | — | — | Mean · Sion Coteau rive gauche |
Further parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 78.3 mg/l | — | — | Mean · Sion Coteau rive gauche |
| Magnesium | 17 mg/l | — | — | Mean · Sion Coteau rive gauche |
| Potassium | 2.3 mg/l | — | — | Mean · Sion Coteau rive gauche |
| Total hardness | 29.3 °fH | — | — | Mean · Sion Coteau rive gauche |
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: 3977
Sion Plaine
OIKEN 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 | 3.85 mg/l | 40 mg/l | 10 % | Mean · Sion Plaine |
| Escherichia coli (E. coli) | 6 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Plaine |
| Sulphate | 76.6 mg/l | — | — | Mean · Sion Plaine |
| Sodium | 8.6 mg/l | 200 mg/l | 4 % | Mean · Sion Plaine |
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.
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 | 10 KBE/ml | 300 1/ml | — | Mean · Sion Plaine |
| Escherichia coli (E. coli) | 6 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Plaine |
| Intestinal enterococci | 10 KBE/100ml | 0/100 ml | above the parametric value — this parameter must not be detectable | Maximum · Median 0 · Sion Plaine |
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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 3.85 mg/l | 40 mg/l | 10 % | Mean · Sion Plaine |
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | < 0.025 µg/l below limit of quantification | 0.1 µg/l | < 25 % * | Mean · Sion Plaine |
| Chlorothalonil metabolite R471811 | 0.082 µg/l | 0.1 µg/l | 82 % | Mean · Sion Plaine |
* 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 19.5 mg/l | — | — | Mean · Sion Plaine |
| Conductivity (25 °C) | 442 µS/cm | — | — | Mean · Sion Plaine |
| Iron | < 0.02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Sion Plaine |
| Manganese | 0.0008 mg/l | 50 µg/l | 2 % | Mean · Sion Plaine |
| pH | 7.9 | — | — | Mean · Sion Plaine |
| Sodium | 8.6 mg/l | 200 mg/l | 4 % | Mean · Sion Plaine |
| Sulphate | 76.6 mg/l | — | — | Mean · Sion Plaine |
| Temperature | 11.5 °C | — | — | Mean · Sion Plaine |
| Turbidity | < 0.2 TE/F below limit of quantification | — | — | Mean · Sion Plaine |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 70 mg/l | — | — | Mean · Sion Plaine |
| Magnesium | 16.6 mg/l | — | — | Mean · Sion Plaine |
| Potassium | 1.3 mg/l | — | — | Mean · Sion Plaine |
| Total hardness | 23.9 °fH | — | — | Mean · Sion Plaine |
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: 3977
Frequently asked questions about drinking water in Granges VS
- How hard is the water in Granges VS?
- OIKEN SA publishes a total hardness of 26.5 °fH for the supply zone Commune de Sierre — that corresponds to 14.8 °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: 2024, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Granges VS?
- OIKEN SA publishes a nitrate value of 5.6 mg/l for the supply zone Commune de Sierre. The statutory parametric value is 40 mg/l; the measured value represents 14 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.
- Who supplies the drinking water in Granges VS?
- OIKEN SA. The values shown here come from the supply zone Commune de Sierre 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.