How hard is the water in Erstfeld?

Gemeindewerke Erstfeld publishes a total hardness of 8.2 °fH for the supply zone Erstfeld — that corresponds to 4.6 °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 Erstfeld?

Gemeindewerke Erstfeld publishes a nitrate value of 3.1 mg/l for the supply zone Erstfeld. The statutory parametric value is 40 mg/l; the measured value represents 8 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Erstfeld?

Gemeindewerke Erstfeld. The values shown here come from the supply zone Erstfeld 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 Erstfeld

One supply zone, water supplier: Gemeindewerke Erstfeld.

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.

Erstfeld

Gemeindewerke Erstfeld

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

4.6 °dH

Hardness range soft

Key values Erstfeld
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	3.1 mg/l	40 mg/l	8 %	Mean · Erstfeld
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Erstfeld
Sulphate	11.1 mg/l	—	—	Mean · Erstfeld

Show all recorded parameters (14 — most recent value per parameter)

Microbiology (3)

Microbiology – Erstfeld
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	39 KBE/ml	300 1/ml	—	Mean · Erstfeld
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Erstfeld
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Erstfeld

Chemical parameters (1)

Chemical parameters – Erstfeld
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	3.1 mg/l	40 mg/l	8 %	Mean · Erstfeld

Indicator parameters (6)

Indicator parameters – Erstfeld
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	1.45 mg/l	—	—	Mean · Erstfeld
Conductivity (25 °C)	168.5 µS/cm	—	—	Mean · Erstfeld
pH	7.9	—	—	Mean · Erstfeld
Sulphate	11.1 mg/l	—	—	Mean · Erstfeld
Temperature	12 °C	—	—	Mean · Erstfeld
Turbidity	0.17 TE/F	—	—	Mean · Erstfeld

Further parameters (4)

Further parameters – Erstfeld
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	29.5 mg/l	—	—	Mean · Erstfeld
Dissolved organic carbon (DOC)	0.4 mg/l	—	—	Mean · Erstfeld
Magnesium	2 mg/l	—	—	Mean · Erstfeld
Total hardness	8.2 °fH	—	—	Mean · Erstfeld

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/683/gemeindewerke-erstfeld/3621/erstfeld · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 6472

Frequently asked questions about drinking water in Erstfeld

How hard is the water in Erstfeld?: Gemeindewerke Erstfeld publishes a total hardness of 8.2 °fH for the supply zone Erstfeld — that corresponds to 4.6 °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 Erstfeld?: Gemeindewerke Erstfeld publishes a nitrate value of 3.1 mg/l for the supply zone Erstfeld. The statutory parametric value is 40 mg/l; the measured value represents 8 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Erstfeld?: Gemeindewerke Erstfeld. The values shown here come from the supply zone Erstfeld 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.