How hard is the water in Dörflingen?

Wasserversorgung Dörflingen publishes a total hardness of 23.4 °fH for the supply zone Dörflingen — that corresponds to 13.1 °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: 2022, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Dörflingen?

Wasserversorgung Dörflingen publishes a nitrate value of 8.4 mg/l for the supply zone Dörflingen. The statutory parametric value is 40 mg/l; the measured value represents 21 % of the parametric value. Basis: 2022, retrieved on 07/08/2026.

Who supplies the drinking water in Dörflingen?

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

One supply zone, water supplier: Wasserversorgung Dörflingen.

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.

Dörflingen

Wasserversorgung Dörflingen

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 31/12/2022. 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

13.1 °dH

Hardness range medium

Key values Dörflingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8.4 mg/l	40 mg/l	21 %	Mean · Dörflingen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Dörflingen
Sulphate	29.3 mg/l	—	—	Mean · Dörflingen
Sodium	11.5 mg/l	200 mg/l	6 %	Mean · Dörflingen

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

Microbiology (3)

Microbiology – Dörflingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	7 KBE/ml	300 1/ml	—	Mean · Dörflingen
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Dörflingen
Intestinal enterococci	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Dörflingen

Chemical parameters (1)

Chemical parameters – Dörflingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8.4 mg/l	40 mg/l	21 %	Mean · Dörflingen

Metabolites (1)

Metabolites – Dörflingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R471811	0.036 µg/l	0.1 µg/l	36 %	Mean · Dörflingen

Indicator parameters (7)

Indicator parameters – Dörflingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	10.3 mg/l	—	—	Mean · Dörflingen
Conductivity (25 °C)	435 µS/cm	—	—	Mean · Dörflingen
Iron	0 mg/l	0.2 mg/l	0 %	Mean · Dörflingen
Manganese	0 mg/l	50 µg/l	0 %	Mean · Dörflingen
Sodium	11.5 mg/l	200 mg/l	6 %	Mean · Dörflingen
Sulphate	29.3 mg/l	—	—	Mean · Dörflingen
Temperature	12.25 °C	—	—	Mean · Dörflingen

Further parameters (4)

Further parameters – Dörflingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	63.25 mg/l	—	—	Mean · Dörflingen
Magnesium	15.9 mg/l	—	—	Mean · Dörflingen
Potassium	0 mg/l	—	—	Mean · Dörflingen
Total hardness	23.4 °fH	—	—	Mean · Dörflingen

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/1088/wasserversorgung-dorflingen/580/dorflingen · 2022 · 2022 · retrieved on 07/08/2026

Postcodes in this zone: 8239

Frequently asked questions about drinking water in Dörflingen

How hard is the water in Dörflingen?: Wasserversorgung Dörflingen publishes a total hardness of 23.4 °fH for the supply zone Dörflingen — that corresponds to 13.1 °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: 2022, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Dörflingen?: Wasserversorgung Dörflingen publishes a nitrate value of 8.4 mg/l for the supply zone Dörflingen. The statutory parametric value is 40 mg/l; the measured value represents 21 % of the parametric value. Basis: 2022, retrieved on 07/08/2026.
Who supplies the drinking water in Dörflingen?: Wasserversorgung Dörflingen. The values shown here come from the supply zone Dörflingen 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.