Drinking water in Boningen
One supply zone, water supplier: Zweckverband Wasserversorgung Untergäu.
How to read the share of the parametric value
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.
Zweckverband Wasserversorgung Untergäu
Zweckverband Wasserversorgung UntergäuAssigned 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 31/12/2023. 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 30.8 mg/l | 40 mg/l | 77 % | Mean · Zweckverband Wasserversorgung Untergäu |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Zweckverband Wasserversorgung Untergäu |
| Sulphate | 17.7 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Sodium | 8.7 mg/l | 200 mg/l | 4 % | Mean · Zweckverband Wasserversorgung Untergäu |
Show all recorded parameters (21 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 3 KBE/ml | 300 1/ml | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Zweckverband Wasserversorgung Untergäu |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Zweckverband Wasserversorgung Untergäu |
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | 0.045 mg/l | 1.5 mg/l | 3 % | Mean · Zweckverband Wasserversorgung Untergäu |
| Nitrate | 30.8 mg/l | 40 mg/l | 77 % | Mean · Zweckverband Wasserversorgung Untergäu |
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | 0.19 µg/l | 0.1 µg/l | 190 % Mean above the parametric value | Mean · Zweckverband Wasserversorgung Untergäu |
| Chlorothalonil metabolite R471811 | 0.9 µg/l | 0.1 µg/l | 900 % Mean above the parametric value | Mean · Zweckverband Wasserversorgung Untergäu |
Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.
Indicator parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 17.5 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Conductivity (25 °C) | 671 µS/cm | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Iron | 0.0037 mg/l | 0.2 mg/l | 2 % | Mean · Zweckverband Wasserversorgung Untergäu |
| Manganese | 0.0001 mg/l | 50 µg/l | 0.2 % | Mean · Zweckverband Wasserversorgung Untergäu |
| pH | 7.25 | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Sodium | 8.7 mg/l | 200 mg/l | 4 % | Mean · Zweckverband Wasserversorgung Untergäu |
| Sulphate | 17.7 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Temperature | 12.2 °C | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Turbidity | 0.09 TE/F | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 120 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Dissolved organic carbon (DOC) | 0.625 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Magnesium | 9.15 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Potassium | 2.1 mg/l | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
| Total hardness | 34.3 °fH | — | — | Mean · Zweckverband Wasserversorgung Untergäu |
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: 4618
Frequently asked questions about drinking water in Boningen
- How hard is the water in Boningen?
- Zweckverband Wasserversorgung Untergäu publishes a total hardness of 34.3 °fH for the supply zone Zweckverband Wasserversorgung Untergäu — that corresponds to 19.2 °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: 2023, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Boningen?
- Zweckverband Wasserversorgung Untergäu publishes a nitrate value of 30.8 mg/l for the supply zone Zweckverband Wasserversorgung Untergäu. The statutory parametric value is 40 mg/l; the measured value represents 77 % of the parametric value. Basis: 2023, retrieved on 07/08/2026.
- Who supplies the drinking water in Boningen?
- Zweckverband Wasserversorgung Untergäu. The values shown here come from the supply zone Zweckverband Wasserversorgung Untergäu 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.