Drinking water in Rastatt
2 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. To determine the exact match, look up the postcode.
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.
WW Ottersdorf
Stadtwerke RastattAssigned 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,039 µg/L | — | — | Single value · WW Ottersdorf |
| Nitrate | 5,6 mg/L | 50 mg/l | 11 % | Single value · WW Ottersdorf |
| Sulphate | 36,4 mg/L | 250 mg/l | 15 % | Single value · WW Ottersdorf |
| Sodium | 10,9 mg/L | 200 mg/l | 5 % | Single value · WW Ottersdorf |
Show all recorded parameters (22 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 5,6 mg/L | 50 mg/l | 11 % | Single value · WW Ottersdorf |
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,0013 µg/L | — | — | Single value · WW Ottersdorf |
| Sum of PFAS | 0,039 µg/L | — | — | Single value · WW Ottersdorf |
Indicator parameters (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0,03 mg/L | 0.2 mg/l | 15 % | Single value · WW Ottersdorf |
| Ammonium | < 0,01 mg/L below limit of quantification | 0.5 mg/l | < 2 % * | Single value · WW Ottersdorf |
| Chloride | 18,1 mg/L | 250 mg/l | 7 % | Single value · WW Ottersdorf |
| Colour | ohne - | 0.5 m⁻¹ | — | Single value · WW Ottersdorf |
| Iron | < 0,01 mg/L below limit of quantification | 0.2 mg/l | < 5 % * | Single value · WW Ottersdorf |
| Manganese | < 0,005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Single value · WW Ottersdorf |
| Odour | ohne - | für den Verbraucher annehmbar | — | Single value · WW Ottersdorf |
| Sodium | 10,9 mg/L | 200 mg/l | 5 % | Single value · WW Ottersdorf |
| Sulphate | 36,4 mg/L | 250 mg/l | 15 % | Single value · WW Ottersdorf |
| Taste | ohne - | für den Verbraucher annehmbar | — | Single value · WW Ottersdorf |
| Total organic carbon (TOC) | 0,76 mg/L | ohne anormale Veränderung | — | Single value · WW Ottersdorf |
| Turbidity | ohne - | 1 NTU | — | Single value · WW Ottersdorf |
* 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 (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,06 mmol/L | — | — | Single value · WW Ottersdorf |
| Base capacity to pH 8.2 | 0,07 mmol/L | — | — | Single value · WW Ottersdorf |
| Calcium | 64,3 mg/L | — | — | Single value · WW Ottersdorf |
| Magnesium | 9,3 mg/L | — | — | Single value · WW Ottersdorf |
| Phosphate | 0,02 mg/L | — | — | Single value · WW Ottersdorf |
| Potassium | 1,4 mg/L | — | — | Single value · WW Ottersdorf |
| Total hardness | 11,1 ° dH | — | — | Single value · WW Ottersdorf |
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: 76437
Show 1 more supply zone
WW Rauental
Stadtwerke RastattAssigned 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,047 µg/L | — | — | Single value · WW Rauental |
| Nitrate | 28,1 mg/L | 50 mg/l | 56 % | Single value · WW Rauental |
| Sulphate | 24,6 mg/L | 250 mg/l | 10 % | Single value · WW Rauental |
| Sodium | 10,6 mg/L | 200 mg/l | 5 % | Single value · WW Rauental |
Show all recorded parameters (22 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 28,1 mg/L | 50 mg/l | 56 % | Single value · WW Rauental |
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0 µg/L | — | — | Single value · WW Rauental |
| Sum of PFAS | 0,047 µg/L | — | — | Single value · WW Rauental |
Indicator parameters (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,02 mg/L below limit of quantification | 0.2 mg/l | < 10 % * | Single value · WW Rauental |
| Ammonium | < 0,01 mg/L below limit of quantification | 0.5 mg/l | < 2 % * | Single value · WW Rauental |
| Chloride | 20,9 mg/L | 250 mg/l | 8 % | Single value · WW Rauental |
| Colour | ohne - | 0.5 m⁻¹ | — | Single value · WW Rauental |
| Iron | < 0,01 mg/L below limit of quantification | 0.2 mg/l | < 5 % * | Single value · WW Rauental |
| Manganese | < 0,005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Single value · WW Rauental |
| Odour | ohne - | für den Verbraucher annehmbar | — | Single value · WW Rauental |
| Sodium | 10,6 mg/L | 200 mg/l | 5 % | Single value · WW Rauental |
| Sulphate | 24,6 mg/L | 250 mg/l | 10 % | Single value · WW Rauental |
| Taste | ohne - | für den Verbraucher annehmbar | — | Single value · WW Rauental |
| Total organic carbon (TOC) | 0,38 mg/L | ohne anormale Veränderung | — | Single value · WW Rauental |
| Turbidity | ohne - | 1 NTU | — | Single value · WW Rauental |
* 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 (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,21 mmol/L | — | — | Single value · WW Rauental |
| Base capacity to pH 8.2 | 0,09 mmol/L | — | — | Single value · WW Rauental |
| Calcium | 55,8 mg/L | — | — | Single value · WW Rauental |
| Magnesium | 5,8 mg/L | — | — | Single value · WW Rauental |
| Phosphate | 0,15 mg/L | — | — | Single value · WW Rauental |
| Potassium | 1,6 mg/L | — | — | Single value · WW Rauental |
| Total hardness | 9,1 ° dH | — | — | Single value · WW Rauental |
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: 76437
Frequently asked questions about drinking water in Rastatt
- How hard is the water in Rastatt?
- Stadtwerke Rastatt publishes a total hardness of 11.1 °dH for the supply zone WW Ottersdorf (hardness range medium). 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: 26. März 2024, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Rastatt?
- Stadtwerke Rastatt publishes a nitrate value of 5,6 mg/L for the supply zone WW Ottersdorf. The statutory parametric value is 50 mg/l; the measured value represents 11 % of the parametric value. Basis: 26. März 2024, retrieved on 11/07/2026.
- Who supplies the drinking water in Rastatt?
- Stadtwerke Rastatt. The values shown here come from the supply zone WW Ottersdorf 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.