How hard is the water in Mönchaltorf?

Wasserversorgung Mönchaltorf publishes a total hardness of 15.6 °fH for the supply zone Mönchaltorf — that corresponds to 8.7 °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 Mönchaltorf?

Wasserversorgung Mönchaltorf publishes a nitrate value of 3.3 mg/l for the supply zone Mönchaltorf. 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 Mönchaltorf?

Wasserversorgung Mönchaltorf. The values shown here come from the supply zone Mönchaltorf 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 Mönchaltorf

One supply zone, water supplier: Wasserversorgung Mönchaltorf.

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.

Mönchaltorf

Wasserversorgung Mönchaltorf

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

Water hardness

8.7 °dH

Hardness range medium

Key values Mönchaltorf
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	3.3 mg/l	40 mg/l	8 %	Mean · Mönchaltorf
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Mönchaltorf
Sulphate	13.9 mg/l	—	—	Mean · Mönchaltorf
Sodium	4.3 mg/l	200 mg/l	2 %	Mean · Mönchaltorf

Show all recorded parameters (19 — most recent value per parameter)

Microbiology (3)

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

Chemical parameters (2)

Chemical parameters – Mönchaltorf
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0.1 mg/l	1.5 mg/l	7 %	Mean · Mönchaltorf
Nitrate	3.3 mg/l	40 mg/l	8 %	Mean · Mönchaltorf

PFAS (2)

PFAS – Mönchaltorf
Parameter	Value	Parametric value	Share of the parametric value	Reference
Perfluorohexane sulfonic acid (PFHxS)	< 0.001 µg/l below limit of quantification	0.3 µg/l	< 0.3 % *	Mean · Mönchaltorf
Perfluorooctanesulfonic acid (PFOS)	< 0.001 µg/l below limit of quantification	0.3 µg/l	< 0.3 % *	Mean · Mönchaltorf

* 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)

Metabolites – Mönchaltorf
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0 µg/l	0.1 µg/l	0 %	Mean · Mönchaltorf
Chlorothalonil metabolite R471811	0 µg/l	0.1 µg/l	0 %	Mean · Mönchaltorf

Indicator parameters (6)

Indicator parameters – Mönchaltorf
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	5.9 mg/l	—	—	Mean · Mönchaltorf
Conductivity (25 °C)	283 µS/cm	—	—	Mean · Mönchaltorf
pH	7.6	—	—	Mean · Mönchaltorf
Sodium	4.3 mg/l	200 mg/l	2 %	Mean · Mönchaltorf
Sulphate	13.9 mg/l	—	—	Mean · Mönchaltorf
Temperature	11.7 °C	—	—	Mean · Mönchaltorf

Further parameters (4)

Further parameters – Mönchaltorf
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	51.1 mg/l	—	—	Mean · Mönchaltorf
Magnesium	7.1 mg/l	—	—	Mean · Mönchaltorf
Potassium	1.1 mg/l	—	—	Mean · Mönchaltorf
Total hardness	15.6 °fH	—	—	Mean · Mönchaltorf

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/1342/wasserversorgung-monchaltorf/3334/monchaltorf · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8617

Frequently asked questions about drinking water in Mönchaltorf

How hard is the water in Mönchaltorf?: Wasserversorgung Mönchaltorf publishes a total hardness of 15.6 °fH for the supply zone Mönchaltorf — that corresponds to 8.7 °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 Mönchaltorf?: Wasserversorgung Mönchaltorf publishes a nitrate value of 3.3 mg/l for the supply zone Mönchaltorf. 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 Mönchaltorf?: Wasserversorgung Mönchaltorf. The values shown here come from the supply zone Mönchaltorf 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.