How hard is the water in Vétroz?

Municipalité de Vétroz publishes a total hardness of 17.6 °fH for the supply zone Réservoir de Péteille desservant Vétroz et Magnot — that corresponds to 9.9 °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: 2024, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Vétroz?

Municipalité de Vétroz publishes a nitrate value of 0.8 mg/l for the supply zone Réservoir de Péteille desservant Vétroz et Magnot. The statutory parametric value is 40 mg/l; the measured value represents 2 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.

Who supplies the drinking water in Vétroz?

Municipalité de Vétroz. The values shown here come from the supply zone Réservoir de Péteille desservant Vétroz et Magnot 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.

Drinking water in Vétroz

One supply zone, water supplier: Municipalité de Vétroz.

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.

< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

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.

Réservoir de Péteille desservant Vétroz et Magnot

Municipalité de Vétroz

Assigned 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.

Water hardness

9.9 °dH

Hardness range medium

Key values Réservoir de Péteille desservant Vétroz et Magnot
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0.8 mg/l	40 mg/l	2 %	Mean · Réservoir de Péteille desservant Vétroz et Magnot
Sulphate	41 mg/l	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot
Sodium	0.9 mg/l	200 mg/l	0.5 %	Mean · Réservoir de Péteille desservant Vétroz et Magnot

Show all recorded parameters (9 — most recent value per parameter)

Microbiology (1)

Microbiology – Réservoir de Péteille desservant Vétroz et Magnot
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	1 KBE/ml	300 1/ml	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot

Chemical parameters (1)

Chemical parameters – Réservoir de Péteille desservant Vétroz et Magnot
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0.8 mg/l	40 mg/l	2 %	Mean · Réservoir de Péteille desservant Vétroz et Magnot

Indicator parameters (4)

Indicator parameters – Réservoir de Péteille desservant Vétroz et Magnot
Parameter	Value	Parametric value	Share of the parametric value	Reference
Conductivity (25 °C)	306 µS/cm	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot
pH	8	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot
Sodium	0.9 mg/l	200 mg/l	0.5 %	Mean · Réservoir de Péteille desservant Vétroz et Magnot
Sulphate	41 mg/l	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot

Further parameters (3)

Further parameters – Réservoir de Péteille desservant Vétroz et Magnot
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	54.3 mg/l	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot
Magnesium	10.1 mg/l	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot
Total hardness	17.6 °fH	—	—	Mean · Réservoir de Péteille desservant Vétroz et Magnot

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.

Source: https://trinkwasser.ch/de/versorger/1482/municipalite-de-vetroz/2084/reservoir-de-peteille-desservant-vetroz-et-magnot · 2024 · 2024 · retrieved on 07/08/2026

Postcodes in this zone: 1963

Frequently asked questions about drinking water in Vétroz

How hard is the water in Vétroz?: Municipalité de Vétroz publishes a total hardness of 17.6 °fH for the supply zone Réservoir de Péteille desservant Vétroz et Magnot — that corresponds to 9.9 °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: 2024, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Vétroz?: Municipalité de Vétroz publishes a nitrate value of 0.8 mg/l for the supply zone Réservoir de Péteille desservant Vétroz et Magnot. The statutory parametric value is 40 mg/l; the measured value represents 2 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.
Who supplies the drinking water in Vétroz?: Municipalité de Vétroz. The values shown here come from the supply zone Réservoir de Péteille desservant Vétroz et Magnot 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.