How hard is the water in Oberrieden?

Wasserversorgung Oberrieden publishes a total hardness of 23.5 °fH for the supply zone Gemeinde Oberrieden — that corresponds to 13.2 °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 Oberrieden?

Wasserversorgung Oberrieden publishes a nitrate value of 4.1 mg/l for the supply zone Gemeinde Oberrieden. The statutory parametric value is 40 mg/l; the measured value represents 10 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Oberrieden?

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

There are 2 places with this name — listed below by area. To determine the exact match, look up the postcode.

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.

Oberrieden (8942)

Gemeinde Oberrieden

Wasserversorgung Oberrieden

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

Water hardness

13.2 °dH

Hardness range medium

Key values Gemeinde Oberrieden
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4.1 mg/l	40 mg/l	10 %	Mean · Gemeinde Oberrieden
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gemeinde Oberrieden
Sodium	14.3 mg/l	200 mg/l	7 %	Mean · Gemeinde Oberrieden

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

Microbiology (3)

Microbiology – Gemeinde Oberrieden
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	8 KBE/ml	300 1/ml	—	Mean · Gemeinde Oberrieden
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gemeinde Oberrieden
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gemeinde Oberrieden

Chemical parameters (1)

Chemical parameters – Gemeinde Oberrieden
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4.1 mg/l	40 mg/l	10 %	Mean · Gemeinde Oberrieden

Indicator parameters (4)

Indicator parameters – Gemeinde Oberrieden
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	18.7 mg/l	—	—	Mean · Gemeinde Oberrieden
pH	7.5	—	—	Mean · Gemeinde Oberrieden
Sodium	14.3 mg/l	200 mg/l	7 %	Mean · Gemeinde Oberrieden
Temperature	8 °C	—	—	Mean · Gemeinde Oberrieden

Further parameters (4)

Further parameters – Gemeinde Oberrieden
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	78.6 mg/l	—	—	Mean · Gemeinde Oberrieden
Magnesium	9.3 mg/l	—	—	Mean · Gemeinde Oberrieden
Potassium	0.9 mg/l	—	—	Mean · Gemeinde Oberrieden
Total hardness	23.5 °fH	—	—	Mean · Gemeinde Oberrieden

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/1504/wasserversorgung-oberrieden/2277/gemeinde-oberrieden · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8942

Frequently asked questions about drinking water in Oberrieden

How hard is the water in Oberrieden?: Wasserversorgung Oberrieden publishes a total hardness of 23.5 °fH for the supply zone Gemeinde Oberrieden — that corresponds to 13.2 °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 Oberrieden?: Wasserversorgung Oberrieden publishes a nitrate value of 4.1 mg/l for the supply zone Gemeinde Oberrieden. The statutory parametric value is 40 mg/l; the measured value represents 10 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Oberrieden?: Wasserversorgung Oberrieden. The values shown here come from the supply zone Gemeinde Oberrieden 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.

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For postcode 87769 there is no verified assignment yet.