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Drinking water in Hedingen

One supply zone, water supplier: Wasserversorgungs-Genossenschaft Hedingen.

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.

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

Water hardness
19 °dH
Hardness range hard
Key values Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 13 mg/l 40 mg/l
33 %
Mean · Hedingen
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml Maximum · Median 0 · Hedingen
Sulphate 9 mg/l Mean · Hedingen
Sodium 4.2 mg/l 200 mg/l
2 %
Mean · Hedingen
Show all recorded parameters (23 — most recent value per parameter)

Microbiology (3)

Microbiology – Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 32 KBE/ml 300 1/ml Mean · Hedingen
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml Maximum · Median 0 · Hedingen
Intestinal enterococci 0 KBE/100ml 0/100 ml Maximum · Median 0 · Hedingen

Chemical parameters (2)

Chemical parameters – Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Hedingen
Nitrate 13 mg/l 40 mg/l
33 %
Mean · Hedingen

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

PFAS (3)

PFAS – Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Perfluorohexane sulfonic acid (PFHxS) < 0.001 µg/l
below limit of quantification
0.3 µg/l
< 0.3 % *
Mean · Hedingen
Perfluorooctanesulfonic acid (PFOS) 0.001 µg/l 0.3 µg/l
0.3 %
Mean · Hedingen
Perfluorooctanoic acid (PFOA) < 0.001 µg/l
below limit of quantification
0.5 µg/l
< 0.2 % *
Mean · Hedingen

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

Metabolites (2)

Metabolites – Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Chlorothalonil metabolite R417888 < 0.01 µg/l
below limit of quantification
0.1 µg/l
< 10 % *
Mean · Hedingen
Chlorothalonil metabolite R471811 0.057 µg/l 0.1 µg/l
57 %
Mean · Hedingen

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

Indicator parameters (6)

Indicator parameters – Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Chloride 4.7 mg/l Mean · Hedingen
Conductivity (25 °C) 569 µS/cm Mean · Hedingen
pH 7.3 Mean · Hedingen
Sodium 4.2 mg/l 200 mg/l
2 %
Mean · Hedingen
Sulphate 9 mg/l Mean · Hedingen
Temperature 12 °C Mean · Hedingen

Further parameters (7)

Further parameters – Hedingen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 103 mg/l Mean · Hedingen
Dissolved organic carbon (DOC) 0.7 mg/l Mean · Hedingen
Hydrogen carbonate 411 mg/l Mean · Hedingen
Magnesium 21 mg/l Mean · Hedingen
Potassium 0.7 mg/l Mean · Hedingen
Spectral absorption coefficient 254 nm (SAC 254) 1.4 1/m Mean · Hedingen
Total hardness 34 °fH Mean · Hedingen

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: 8908

Frequently asked questions about drinking water in Hedingen

How hard is the water in Hedingen?
Wasserversorgungs-Genossenschaft Hedingen publishes a total hardness of 34 °fH for the supply zone Hedingen — that corresponds to 19 °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 Hedingen?
Wasserversorgungs-Genossenschaft Hedingen publishes a nitrate value of 13 mg/l for the supply zone Hedingen. The statutory parametric value is 40 mg/l; the measured value represents 33 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Hedingen?
Wasserversorgungs-Genossenschaft Hedingen. The values shown here come from the supply zone Hedingen 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.