How hard is the water in Zeiningen?

WV Zeiningen publishes a total hardness of 40.7 °fH for the supply zone Wasserversorgung Zeiningen — that corresponds to 22.8 °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 Zeiningen?

WV Zeiningen publishes a nitrate value of 34.6 mg/l for the supply zone Wasserversorgung Zeiningen. The statutory parametric value is 40 mg/l; the measured value represents 87 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Zeiningen?

WV Zeiningen. The values shown here come from the supply zone Wasserversorgung Zeiningen 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 Zeiningen

One supply zone, water supplier: WV Zeiningen.

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.

Wasserversorgung Zeiningen

WV Zeiningen

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

Water hardness

22.8 °dH

Hardness range hard

Key values Wasserversorgung Zeiningen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	34.6 mg/l	40 mg/l	87 %	Mean · Wasserversorgung Zeiningen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Wasserversorgung Zeiningen

Show all recorded parameters (7 — most recent value per parameter)

Microbiology (3)

Microbiology – Wasserversorgung Zeiningen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	4.3 KBE/ml	300 1/ml	—	Mean · Wasserversorgung Zeiningen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Wasserversorgung Zeiningen
Intestinal enterococci	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Wasserversorgung Zeiningen

Chemical parameters (1)

Chemical parameters – Wasserversorgung Zeiningen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	34.6 mg/l	40 mg/l	87 %	Mean · Wasserversorgung Zeiningen

Further parameters (3)

Further parameters – Wasserversorgung Zeiningen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	121 mg/l	—	—	Mean · Wasserversorgung Zeiningen
Magnesium	26.5 mg/l	—	—	Mean · Wasserversorgung Zeiningen
Total hardness	40.7 °fH	—	—	Mean · Wasserversorgung Zeiningen

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/1242/wv-zeiningen/3458/wasserversorgung-zeiningen · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 4314

Frequently asked questions about drinking water in Zeiningen

How hard is the water in Zeiningen?: WV Zeiningen publishes a total hardness of 40.7 °fH for the supply zone Wasserversorgung Zeiningen — that corresponds to 22.8 °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 Zeiningen?: WV Zeiningen publishes a nitrate value of 34.6 mg/l for the supply zone Wasserversorgung Zeiningen. The statutory parametric value is 40 mg/l; the measured value represents 87 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Zeiningen?: WV Zeiningen. The values shown here come from the supply zone Wasserversorgung Zeiningen 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.