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Drinking water in Oberlunkhofen

One supply zone, water supplier: VWV Oberlunkhofen Arni Islisberg.

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.

Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg

VWV Oberlunkhofen Arni Islisberg

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 31/12/2024. 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
12.2 °dH
Hardness range medium
Key values Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9 mg/l 40 mg/l
23 %
Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Sulphate 14 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Sodium 6.4 mg/l 200 mg/l
3 %
Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Show all recorded parameters (17 — most recent value per parameter)

Microbiology (3)

Microbiology – Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 3 KBE/ml 300 1/ml Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg

Chemical parameters (1)

Chemical parameters – Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9 mg/l 40 mg/l
23 %
Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg

Indicator parameters (7)

Indicator parameters – Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Parameter Value Parametric value Share of the parametric value Reference
Chloride 6.7 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Conductivity (25 °C) 329 µS/cm Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
pH 7.8 Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Sodium 6.4 mg/l 200 mg/l
3 %
Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Sulphate 14 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Temperature 14.8 °C Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Turbidity 0.1 TE/F Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg

Further parameters (6)

Further parameters – Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Parameter Value Parametric value Share of the parametric value Reference
Calcium 52 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Dissolved organic carbon (DOC) 0.6 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Hydrogen carbonate 181 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Magnesium 7.7 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Potassium 1 mg/l Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg
Total hardness 21.8 °fH Mean · Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg

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.

Postcodes in this zone: 8917

Frequently asked questions about drinking water in Oberlunkhofen

How hard is the water in Oberlunkhofen?
VWV Oberlunkhofen Arni Islisberg publishes a total hardness of 21.8 °fH for the supply zone Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg — that corresponds to 12.2 °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: 2024, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Oberlunkhofen?
VWV Oberlunkhofen Arni Islisberg publishes a nitrate value of 9 mg/l for the supply zone Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg. The statutory parametric value is 40 mg/l; the measured value represents 23 % of the parametric value. Basis: 2024, retrieved on 07/08/2026.
Who supplies the drinking water in Oberlunkhofen?
VWV Oberlunkhofen Arni Islisberg. The values shown here come from the supply zone Vereinigte Wasserversorgung Oberlunkhofen Arni Islisberg 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.