How hard is the water in Lausen?

Gemeinde Lausen publishes a total hardness of 36.8 °fH for the supply zone Gemeinde Lausen — that corresponds to 20.6 °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: 2024, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Lausen?

Gemeinde Lausen publishes a nitrate value of 17.6 mg/l for the supply zone Gemeinde Lausen. The statutory parametric value is 40 mg/l; the measured value represents 44 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.

Who supplies the drinking water in Lausen?

Gemeinde Lausen. The values shown here come from the supply zone Gemeinde Lausen 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 Lausen

One supply zone, water supplier: Gemeinde Lausen.

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.

Gemeinde Lausen

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

20.6 °dH

Hardness range hard

Key values Gemeinde Lausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	17.6 mg/l	40 mg/l	44 %	Mean · Gemeinde Lausen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Gemeinde Lausen
Sulphate	104 mg/l	—	—	Mean · Gemeinde Lausen
Sodium	20 mg/l	200 mg/l	10 %	Mean · Gemeinde Lausen

Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Lausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	9 KBE/ml	300 1/ml	—	Mean · Gemeinde Lausen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Gemeinde Lausen
Intestinal enterococci	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Gemeinde Lausen

Chemical parameters (2)

Chemical parameters – Gemeinde Lausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0.16 mg/l	1.5 mg/l	11 %	Mean · Gemeinde Lausen
Nitrate	17.6 mg/l	40 mg/l	44 %	Mean · Gemeinde Lausen

Indicator parameters (7)

Indicator parameters – Gemeinde Lausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	26.5 mg/l	—	—	Mean · Gemeinde Lausen
Conductivity (25 °C)	758 µS/cm	—	—	Mean · Gemeinde Lausen
pH	7.44	—	—	Mean · Gemeinde Lausen
Sodium	20 mg/l	200 mg/l	10 %	Mean · Gemeinde Lausen
Sulphate	104 mg/l	—	—	Mean · Gemeinde Lausen
Temperature	15.5 °C	—	—	Mean · Gemeinde Lausen
Turbidity	0.29 TE/F	—	—	Mean · Gemeinde Lausen

Further parameters (4)

Further parameters – Gemeinde Lausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	126 mg/l	—	—	Mean · Gemeinde Lausen
Magnesium	13 mg/l	—	—	Mean · Gemeinde Lausen
Potassium	4.16 mg/l	—	—	Mean · Gemeinde Lausen
Total hardness	36.8 °fH	—	—	Mean · Gemeinde Lausen

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/1324/gemeinde-lausen/2725/gemeinde-lausen · 2024 · 2024 · retrieved on 07/08/2026

Postcodes in this zone: 4415

Frequently asked questions about drinking water in Lausen

How hard is the water in Lausen?: Gemeinde Lausen publishes a total hardness of 36.8 °fH for the supply zone Gemeinde Lausen — that corresponds to 20.6 °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: 2024, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Lausen?: Gemeinde Lausen publishes a nitrate value of 17.6 mg/l for the supply zone Gemeinde Lausen. The statutory parametric value is 40 mg/l; the measured value represents 44 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.
Who supplies the drinking water in Lausen?: Gemeinde Lausen. The values shown here come from the supply zone Gemeinde Lausen 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.