Drinking water in Ettlingen
One supply zone, water supplier: Stadtwerke Ettlingen GmbH.
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.
Kernstadt und alle Stadtteile
Stadtwerke Ettlingen GmbHAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
17.3 °dH
Hardness range hart
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,00 μg/L | 0.1 µg/l | 0 % | Single value · Kernstadt und alle Stadtteile |
| Nitrate | 2,00 Unit not stated in the document | 50 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Sulphate | 38,70 Unit not stated in the document | 250 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Sodium | 9,30 Unit not stated in the document | 200 mg/l | — | Single value · Kernstadt und alle Stadtteile |
Show all recorded parameters (26 — most recent value per parameter)
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Copper | < BG not detectable Unit not stated in the document | 2 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Nitrate | 2,00 Unit not stated in the document | 50 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Nitrite | < BG not detectable Unit not stated in the document | 0.5 mg/l | — | Single value · Kernstadt und alle Stadtteile |
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,00 μg/L | — | — | Single value · Kernstadt und alle Stadtteile |
| Sum of PFAS | 0,00 μg/L | 0.1 µg/l | 0 % | Single value · Kernstadt und alle Stadtteile |
Indicator parameters (11)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < BG not detectable Unit not stated in the document | 0.2 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Ammonium | < BG not detectable Unit not stated in the document | 0.5 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Chloride | 16,20 Unit not stated in the document | 250 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Colour | ohne - | 0.5 m⁻¹ | — | Single value · Kernstadt und alle Stadtteile |
| Conductivity (25 °C) | 606,00 μS/cm | 2,790 µS/cm | — | Single value · Kernstadt und alle Stadtteile |
| Iron | 0,03 Unit not stated in the document | 0.2 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Manganese | < BG not detectable Unit not stated in the document | 50 µg/l | — | Single value · Kernstadt und alle Stadtteile |
| Odour | ohne - | für den Verbraucher annehmbar | — | Single value · Kernstadt und alle Stadtteile |
| Sodium | 9,30 Unit not stated in the document | 200 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Sulphate | 38,70 Unit not stated in the document | 250 mg/l | — | Single value · Kernstadt und alle Stadtteile |
| Turbidity | 0,17 FNU | 1 NTU | — | Single value · Kernstadt und alle Stadtteile |
Further parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 5,34 mmol/L | — | — | Single value · Kernstadt und alle Stadtteile |
| Base capacity to pH 8.2 | 0,71 mmol/L | — | — | Single value · Kernstadt und alle Stadtteile |
| Calcite precipitation capacity | 15,00 mg/L | — | — | Single value · Kernstadt und alle Stadtteile |
| Calcium | 109,00 | — | — | Single value · Kernstadt und alle Stadtteile |
| Hardness range (WRMG) | hart | — | — | Single value · Kernstadt und alle Stadtteile |
| Magnesium | 9,00 | — | — | Single value · Kernstadt und alle Stadtteile |
| Oxygen | 6,80 mg/L | — | — | Single value · Kernstadt und alle Stadtteile |
| Potassium | 1,40 | — | — | Single value · Kernstadt und alle Stadtteile |
| Saturation index | 0,15 - | — | — | Single value · Kernstadt und alle Stadtteile |
| Total hardness | 17,30 ° dH | — | — | Single value · Kernstadt und alle Stadtteile |
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://www.sw-ettlingen.de/de/Wasser/Mehr-Infos-zum-Wasser/Linke-Seite-Downloads/Trinkwasseranalyse-2026.pdf · 16.03.2026 · retrieved on 11/07/2026
Postcodes in this zone: 76275
Frequently asked questions about drinking water in Ettlingen
- How hard is the water in Ettlingen?
- Stadtwerke Ettlingen GmbH publishes a total hardness of 17.3 °dH for the supply zone Kernstadt und alle Stadtteile (hardness range hart). 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: Publication by the water supplier, retrieved on 11/07/2026.
- Are PFAS detectable in the drinking water in Ettlingen?
- Stadtwerke Ettlingen GmbH publishes for the supply zone Kernstadt und alle Stadtteile a sum value PFAS-20 of 0,00 μg/L. The statutory parametric value is 0.1 µg/l; the measured value represents 0 % of the parametric value. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: Publication by the water supplier, retrieved on 11/07/2026.
- Who supplies the drinking water in Ettlingen?
- Stadtwerke Ettlingen GmbH. The values shown here come from the supply zone Kernstadt und alle Stadtteile 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.