How hard is the water in Mellikon?

Wasserversorgung Mellikon publishes a total hardness of 23.3 °fH for the supply zone Gemeinde Mellikon — that corresponds to 13 °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: 2026, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Mellikon?

Wasserversorgung Mellikon publishes a nitrate value of 11 mg/l for the supply zone Gemeinde Mellikon. The statutory parametric value is 40 mg/l; the measured value represents 27 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.

Who supplies the drinking water in Mellikon?

Wasserversorgung Mellikon. The values shown here come from the supply zone Gemeinde Mellikon 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 Mellikon

One supply zone, water supplier: Wasserversorgung Mellikon.

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 Mellikon

Wasserversorgung Mellikon

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

Water hardness

13 °dH

Hardness range medium

Key values Gemeinde Mellikon
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	11 mg/l	40 mg/l	27 %	Mean · Gemeinde Mellikon
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gemeinde Mellikon

Show all recorded parameters (12 — most recent value per parameter)

Microbiology (3)

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

Chemical parameters (1)

Chemical parameters – Gemeinde Mellikon
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	11 mg/l	40 mg/l	27 %	Mean · Gemeinde Mellikon

PFAS (3)

PFAS – Gemeinde Mellikon
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 · Gemeinde Mellikon
Perfluorooctanesulfonic acid (PFOS)	< 0.001 µg/l below limit of quantification	0.3 µg/l	< 0.3 % *	Mean · Gemeinde Mellikon
Perfluorooctanoic acid (PFOA)	< 0.001 µg/l below limit of quantification	0.5 µg/l	< 0.2 % *	Mean · Gemeinde Mellikon

* 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 – Gemeinde Mellikon
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	< 0.02 µg/l below limit of quantification	0.1 µg/l	< 20 % *	Mean · Gemeinde Mellikon
Chlorothalonil metabolite R471811	< 0.02 µg/l below limit of quantification	0.1 µg/l	< 20 % *	Mean · Gemeinde Mellikon

Further parameters (3)

Further parameters – Gemeinde Mellikon
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	69 mg/l	—	—	Mean · Gemeinde Mellikon
Magnesium	14.9 mg/l	—	—	Mean · Gemeinde Mellikon
Total hardness	23.3 °fH	—	—	Mean · Gemeinde Mellikon

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/946/wasserversorgung-mellikon/3700/gemeinde-mellikon · 2026 · 2026 · retrieved on 07/08/2026

Postcodes in this zone: 5465

Frequently asked questions about drinking water in Mellikon

How hard is the water in Mellikon?: Wasserversorgung Mellikon publishes a total hardness of 23.3 °fH for the supply zone Gemeinde Mellikon — that corresponds to 13 °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: 2026, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Mellikon?: Wasserversorgung Mellikon publishes a nitrate value of 11 mg/l for the supply zone Gemeinde Mellikon. The statutory parametric value is 40 mg/l; the measured value represents 27 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Mellikon?: Wasserversorgung Mellikon. The values shown here come from the supply zone Gemeinde Mellikon 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.