How hard is the water in Ehrendingen?

Wasserversorgung Ehrendingen publishes a total hardness of 31.37 °fH for the supply zone Gemeinde Ehrendignen — that corresponds to 17.6 °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: 2026, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Ehrendingen?

Wasserversorgung Ehrendingen publishes a nitrate value of 12.7 mg/l for the supply zone Gemeinde Ehrendignen. The statutory parametric value is 40 mg/l; the measured value represents 32 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.

Who supplies the drinking water in Ehrendingen?

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

One supply zone, water supplier: Wasserversorgung Ehrendingen.

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 Ehrendignen

Wasserversorgung Ehrendingen

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

Water hardness

17.6 °dH

Hardness range hard

Key values Gemeinde Ehrendignen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	12.7 mg/l	40 mg/l	32 %	Mean · Gemeinde Ehrendignen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Gemeinde Ehrendignen
Sulphate	22.8 mg/l	—	—	Mean · Gemeinde Ehrendignen
Sodium	6.47 mg/l	200 mg/l	3 %	Mean · Gemeinde Ehrendignen

Show all recorded parameters (17 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Ehrendignen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	12 KBE/ml	300 1/ml	—	Mean · Gemeinde Ehrendignen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Gemeinde Ehrendignen
Intestinal enterococci	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Gemeinde Ehrendignen

Chemical parameters (2)

Chemical parameters – Gemeinde Ehrendignen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0.1 mg/l	1.5 mg/l	7 %	Mean · Gemeinde Ehrendignen
Nitrate	12.7 mg/l	40 mg/l	32 %	Mean · Gemeinde Ehrendignen

Indicator parameters (7)

Indicator parameters – Gemeinde Ehrendignen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	10.73 mg/l	—	—	Mean · Gemeinde Ehrendignen
Conductivity (25 °C)	613.33 µS/cm	—	—	Mean · Gemeinde Ehrendignen
pH	7.33	—	—	Mean · Gemeinde Ehrendignen
Sodium	6.47 mg/l	200 mg/l	3 %	Mean · Gemeinde Ehrendignen
Sulphate	22.8 mg/l	—	—	Mean · Gemeinde Ehrendignen
Temperature	10.88 °C	—	—	Mean · Gemeinde Ehrendignen
Turbidity	< 0.1 TE/F below limit of quantification	—	—	Mean · Gemeinde Ehrendignen

Further parameters (5)

Further parameters – Gemeinde Ehrendignen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	97.9 mg/l	—	—	Mean · Gemeinde Ehrendignen
Dissolved organic carbon (DOC)	0.25 mg/l	—	—	Mean · Gemeinde Ehrendignen
Magnesium	16.87 mg/l	—	—	Mean · Gemeinde Ehrendignen
Potassium	1.43 mg/l	—	—	Mean · Gemeinde Ehrendignen
Total hardness	31.37 °fH	—	—	Mean · Gemeinde Ehrendignen

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/1426/wasserversorgung-ehrendingen/3638/gemeinde-ehrendignen · 2026 · 2026 · retrieved on 07/08/2026

Postcodes in this zone: 5420

Frequently asked questions about drinking water in Ehrendingen

How hard is the water in Ehrendingen?: Wasserversorgung Ehrendingen publishes a total hardness of 31.37 °fH for the supply zone Gemeinde Ehrendignen — that corresponds to 17.6 °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: 2026, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Ehrendingen?: Wasserversorgung Ehrendingen publishes a nitrate value of 12.7 mg/l for the supply zone Gemeinde Ehrendignen. The statutory parametric value is 40 mg/l; the measured value represents 32 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Ehrendingen?: Wasserversorgung Ehrendingen. The values shown here come from the supply zone Gemeinde Ehrendignen 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.