Drinking water in 71157
One supply zone, water supplier: Ammertal Schönbuchgruppe.
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.
ASG-Wasser (Bühl, Hirschau, Kiebingen, Oberndorf, Unterjesingen (Niederzone), Wendelsheim, Wurmlingen)
Ammertal SchönbuchgruppeAssigned 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 31/12/2018. 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 | 12 mg/l | 50 mg/l | 24 % | Single value |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Sulphate | 22 mg/l | 250 mg/l | 9 % | Single value |
| Sodium | 10 mg/l | 200 mg/l | 5 % | Single value |
* 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.
Show all recorded parameters (41 — most recent value per parameter)
Chemical parameters (22)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,001 mg/l below limit of quantification | 3 µg/l | < 33 % * | Single value |
| Antimony | < 0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Single value |
| Arsenic | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Benzene | < 0,0005 mg/l below limit of quantification | 1 µg/l | < 50 % * | Single value |
| Benzo(a)pyrene | < 0,000005 mg/l below limit of quantification | 10 ng/l | < 50 % * | Single value |
| Boron | < 0,10 mg/l below limit of quantification | 1 mg/l | < 10 % * | Single value |
| Bromate | < 0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Single value |
| Cadmium | < 0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Copper | < 0,005 mg/l below limit of quantification | 2 mg/l | < 0.3 % * | Single value |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Fluoride | 0,3 mg/l | 1.5 mg/l | 20 % | Single value |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Mercury | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Nickel | < 0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Single value |
| Nitrate | 12 mg/l | 50 mg/l | 24 % | Single value |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value |
| Pesticides — Total | < 0,000025 mg/l below limit of quantification | 0.5 µg/l | < 5 % * | Single value |
| Selenium | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Tetrachloroethene and Trichloroethene (sum) | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Trihalomethanes — Total | < 0,0010 mg/l below limit of quantification | 50 µg/l | < 2 % * | Single value |
| Uranium | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
* 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 (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Ammonium | < 0,05 mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Single value |
| Calcite dissolution capacity | -9,7 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 30 mg/l | 250 mg/l | 12 % | Single value |
| Colour | < 0,1 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 520 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | < 0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Single value |
| Manganese | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Odour | 1 bei 23°C TON | für den Verbraucher annehmbar | — | Single value |
| Sodium | 10 mg/l | 200 mg/l | 5 % | Single value |
| Sulphate | 22 mg/l | 250 mg/l | 9 % | Single value |
| Taste | neutral | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | < 0,50 mg/l below limit of quantification | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,08 NTU | 1 NTU | — | Single value |
* 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.
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Base capacity to pH 8.2 | 0,14 mmol/l | — | — | Single value |
| Calcium | 63 mg/l | — | — | Single value |
| Hardness range (WRMG) | mittel | — | — | Single value |
| Magnesium | 20 mg/l | — | — | Single value |
| Potassium | 2,7 mg/l | — | — | Single value |
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.
Frequent questions about postcode 71157
- How hard is the water in Postcode 71157?
- Ammertal Schönbuchgruppe publishes the hardness range mittel for the supply zone ASG-Wasser (Bühl, Hirschau, Kiebingen, Oberndorf, Unterjesingen (Niederzone), Wendelsheim, Wurmlingen). 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: Stand 11.12.2018, retrieved on 25/07/2026.
- How much nitrate is in the drinking water in Postcode 71157?
- Ammertal Schönbuchgruppe publishes a nitrate value of 12 mg/l for the supply zone ASG-Wasser (Bühl, Hirschau, Kiebingen, Oberndorf, Unterjesingen (Niederzone), Wendelsheim, Wurmlingen). The statutory parametric value is 50 mg/l; the measured value represents 24 % of the parametric value. Basis: Stand 11.12.2018, retrieved on 25/07/2026.
- Who supplies the drinking water in Postcode 71157?
- Ammertal Schönbuchgruppe. The values shown here come from the supply zone ASG-Wasser (Bühl, Hirschau, Kiebingen, Oberndorf, Unterjesingen (Niederzone), Wendelsheim, Wurmlingen) 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.