Drinking water in Hausen im Wiesental
3 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.
HB Kölsberg, Entnahme (nach Ozon)
Wasserversorgung HausenAssigned 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 03/09/2018. 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 | 4,6 mg/l | 50 mg/l | 9 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Sulphate | 6,5 mg/l | 250 mg/l | 3 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Sodium | 7,5 mg/l | 200 mg/l | 4 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
Show all recorded parameters (22 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 4,6 mg/l | 50 mg/l | 9 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
Indicator parameters (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Calcite dissolution capacity | 2,2 mg/l | 5 mg/l CaCO3 | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Chloride | 8,3 mg/l | 250 mg/l | 3 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Coliform bacteria | 0 MPN/100 ml | 0/100 ml | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Conductivity (25 °C) | 168 µS/cm | 2,790 µS/cm | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Odour | geruchlos | für den Verbraucher annehmbar | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| pH | 8,16 | 6,5–9,5 | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Sodium | 7,5 mg/l | 200 mg/l | 4 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Sulphate | 6,5 mg/l | 250 mg/l | 3 % | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Temperature | 14,9 °C | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Turbidity | 0,39 NTU | 1 NTU | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
* 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.
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ozone | 0,05 mg/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 23,4 mg/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Hydrogen carbonate | 78,71 mg/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Magnesium | 1,9 mg/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Oxygen | 9,8 mg/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Potassium | 1,3 mg/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
| Total hardness | 0,67 mmol/l | — | — | Single value · HB Kölsberg, Entnahme (nach Ozon) |
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: 79688
Show 2 more supply zones
HB Kölsberg (nach Ozon)
Wasserversorgung HausenAssigned 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 29/08/2019. 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 | 4,7 mg/l | 50 mg/l | 9 % | Single value · HB Kölsberg (nach Ozon) |
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · HB Kölsberg (nach Ozon) |
| Sulphate | 6,5 mg/l | 250 mg/l | 3 % | Single value · HB Kölsberg (nach Ozon) |
| Sodium | 6,2 mg/l | 200 mg/l | 3 % | Single value · HB Kölsberg (nach Ozon) |
Show all recorded parameters (22 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · HB Kölsberg (nach Ozon) |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 4,7 mg/l | 50 mg/l | 9 % | Single value · HB Kölsberg (nach Ozon) |
Indicator parameters (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | 0,01 mg/l | 0.5 mg/l | 2 % | Single value · HB Kölsberg (nach Ozon) |
| Calcite dissolution capacity | 2,3 mg/l | 5 mg/l CaCO3 | — | Single value · HB Kölsberg (nach Ozon) |
| Chloride | 6,4 mg/l | 250 mg/l | 3 % | Single value · HB Kölsberg (nach Ozon) |
| Coliform bacteria | 0 MPN/100 ml | 0/100 ml | — | Single value · HB Kölsberg (nach Ozon) |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value · HB Kölsberg (nach Ozon) |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value · HB Kölsberg (nach Ozon) |
| Conductivity (25 °C) | 144 µS/cm | 2,790 µS/cm | — | Single value · HB Kölsberg (nach Ozon) |
| Odour | geruchlos | für den Verbraucher annehmbar | — | Single value · HB Kölsberg (nach Ozon) |
| pH | 8,03 | 6,5–9,5 | — | Single value · HB Kölsberg (nach Ozon) |
| Sodium | 6,2 mg/l | 200 mg/l | 3 % | Single value · HB Kölsberg (nach Ozon) |
| Sulphate | 6,5 mg/l | 250 mg/l | 3 % | Single value · HB Kölsberg (nach Ozon) |
| Temperature | 14,8 °C | — | — | Single value · HB Kölsberg (nach Ozon) |
| Turbidity | 0,20 NTU | 1 NTU | — | Single value · HB Kölsberg (nach Ozon) |
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ozone | 0,05 mg/l | — | — | Single value · HB Kölsberg (nach Ozon) |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 20,2 mg/l | — | — | Single value · HB Kölsberg (nach Ozon) |
| Hydrogen carbonate | 66,51 mg/l | — | — | Single value · HB Kölsberg (nach Ozon) |
| Magnesium | 1,6 mg/l | — | — | Single value · HB Kölsberg (nach Ozon) |
| Oxygen | 9,3 mg/l | — | — | Single value · HB Kölsberg (nach Ozon) |
| Potassium | 1,1 mg/l | — | — | Single value · HB Kölsberg (nach Ozon) |
| Total hardness | 0,57 mmol/l | — | — | Single value · HB Kölsberg (nach Ozon) |
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: 79688
ON Rathaus Hausen
Wasserversorgung HausenAssigned 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 29/08/2019. 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 | 4,6 mg/l | 50 mg/l | 9 % | Single value · ON Rathaus Hausen · Source [1] |
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · ON Rathaus Hausen · Source [1] |
| Sulphate | 6,6 mg/l | 250 mg/l | 3 % | Single value · ON Rathaus Hausen · Source [1] |
| Sodium | 7,5 mg/l | 200 mg/l | 4 % | Single value · ON Rathaus Hausen · Source [1] |
Show all recorded parameters (28 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · ON Rathaus Hausen · Source [1] |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Single value · ON Rathaus Hausen · Source [1] |
Chemical parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Copper | 0,001 mg/l | 2 mg/l | < 0.1 % | Single value · ON Rathaus Hausen · Source [1] |
| Fluoride | 0,27 mg/l | 1.5 mg/l | 18 % | Single value · ON Rathaus Hausen · Source [1] |
| Nickel | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Single value · ON Rathaus Hausen · Source [1] |
| Nitrate | 4,6 mg/l | 50 mg/l | 9 % | Single value · ON Rathaus Hausen · Source [1] |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · ON Rathaus Hausen · Source [1] |
* 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 |
|---|---|---|---|---|
| Ammonium | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · ON Rathaus Hausen · Source [1] |
| Calcite dissolution capacity | 3,0 mg/l | 5 mg/l CaCO3 | — | Single value · ON Rathaus Hausen · Source [1] |
| Chloride | 8,3 mg/l | 250 mg/l | 3 % | Single value · ON Rathaus Hausen · Source [1] |
| Coliform bacteria | 0 MPN/100 ml | 0/100 ml | — | Single value · ON Rathaus Hausen · Source [1] |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value · ON Rathaus Hausen · Source [1] |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value · ON Rathaus Hausen · Source [1] |
| Conductivity (25 °C) | 165 µS/cm | 2,790 µS/cm | — | Single value · ON Rathaus Hausen · Source [1] |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value · ON Rathaus Hausen · Source [1] |
| Odour | geruchlos | für den Verbraucher annehmbar | — | Single value · ON Rathaus Hausen · Source [1] |
| pH | 7,83 | 6,5–9,5 | — | Single value · ON Rathaus Hausen · Source [1] |
| Sodium | 7,5 mg/l | 200 mg/l | 4 % | Single value · ON Rathaus Hausen · Source [1] |
| Sulphate | 6,6 mg/l | 250 mg/l | 3 % | Single value · ON Rathaus Hausen · Source [1] |
| Temperature | 22,0 °C | — | — | Single value · ON Rathaus Hausen · Source [1] |
| Turbidity | 0,55 NTU | 1 NTU | — | Single value · ON Rathaus Hausen · Source [1] |
* 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 |
|---|---|---|---|---|
| Calcium | 22,7 mg/l | — | — | Single value · ON Rathaus Hausen · Source [1] |
| Hydrogen carbonate | 75,66 mg/l | — | — | Single value · ON Rathaus Hausen · Source [1] |
| Magnesium | 1,8 mg/l | — | — | Single value · ON Rathaus Hausen · Source [1] |
| Oxygen | 8,7 mg/l | — | — | Single value · ON Rathaus Hausen · Source [1] |
| Potassium | 1,3 mg/l | — | — | Single value · ON Rathaus Hausen · Source [1] |
| Spectral absorption coefficient 254 nm (SAC 254) | 1,42 1/m | — | — | Single value · ON Rathaus Hausen · Source [2] |
| Total hardness | 0,64 mmol/l | — | — | Single value · ON Rathaus Hausen · Source [1] |
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: 79688
Frequently asked questions about drinking water in Hausen im Wiesental
- How hard is the water in Hausen im Wiesental?
- Wasserversorgung Hausen publishes a total hardness of 0,67 mmol/l for the supply zone HB Kölsberg, Entnahme (nach Ozon) — that corresponds to 3.8 °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: 03.09.2018, retrieved on 08/08/2026.
- How much nitrate is in the drinking water in Hausen im Wiesental?
- Wasserversorgung Hausen publishes a nitrate value of 4,6 mg/l for the supply zone HB Kölsberg, Entnahme (nach Ozon). The statutory parametric value is 50 mg/l; the measured value represents 9 % of the parametric value. Basis: 03.09.2018, retrieved on 08/08/2026.
- Who supplies the drinking water in Hausen im Wiesental?
- Wasserversorgung Hausen. The values shown here come from the supply zone HB Kölsberg, Entnahme (nach Ozon) 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.