Drinking water in 34471
One supply zone, water supplier: Zweckverband KBN.
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.
Bad Arolsen
Zweckverband KBNAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 22,1 mg/l | 50 mg/l | 44 % | Single value |
| Sulphate | 35,5 mg/l | 250 mg/l | 14 % | Single value |
Show all recorded parameters (42 — 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 |
| Benzene | < 0,0005 mg/l below limit of quantification | 1 µg/l | < 50 % * | Single value |
| Benzo(a)pyrene | < 0,00001 mg/l below limit of quantification | 10 ng/l | < 100 % * | Single value |
| Benzo(b)fluoranthene | < 0,00001 mg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | < 0,00001 mg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | < 0,00001 mg/l below limit of quantification | — | — | Single value |
| Bromate | < 0,005 mg/l below limit of quantification | 10 µg/l | < 50 % * | Single value |
| Bromodichloromethane | < 0,001 mg/l below limit of quantification | — | — | Single value |
| Chromium | < 0,005 mg/l below limit of quantification | 25 µg/l | < 20 % * | Single value |
| Cyanide | < 0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| Dibromochloromethane | < 0,001 mg/l below limit of quantification | — | — | Single value |
| Fluoranthene | < 0,00001 mg/l below limit of quantification | — | — | Single value |
| Fluoride | 0,12 mg/l | 1.5 mg/l | 8 % | Single value |
| Indeno(1,2,3-cd)pyrene | < 0,00001 mg/l below limit of quantification | — | — | Single value |
| Mercury | < 0,0002 mg/l below limit of quantification | 1 µg/l | < 20 % * | Single value |
| Nitrate | 22,1 mg/l | 50 mg/l | 44 % | Single value |
| Nitrite | < 0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Tetrachloroethene | < 0,001 mg/l below limit of quantification | — | — | Single value |
| Tribromomethane (bromoform) | < 0,001 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | < 0,001 mg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | < 0,001 mg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | 0 mg/l | 50 µg/l | 0 % | 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 (12)
| 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 | 2,7 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 17,1 mg/l | 250 mg/l | 7 % | Single value |
| Colour | < 0,1 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 424 µS/cm | 2,790 µS/cm | — | Single value |
| Odour | kein ungewöhnlicher einheitenlos | für den Verbraucher annehmbar | — | Single value |
| pH | 7,68 einheitenlos | 6,5–9,5 | — | Single value |
| Sulphate | 35,5 mg/l | 250 mg/l | 14 % | Single value |
| Taste | kein ungewöhnlicher einheitenlos | für den Verbraucher annehmbar | — | Single value |
| Temperature | 8,4 °C | — | — | Single value |
| Turbidity | 0,29 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 (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,74 mmol/l | — | — | Single value |
| Base capacity to pH 8.2 | 0,135 mmol/l | — | — | Single value |
| Calcium | 51 mg/l | — | — | Single value |
| Carbonate hardness | 7,67 °dH | — | — | Single value |
| Hydrogen carbonate | 167 mg/l | — | — | Single value |
| Non-carbonate hardness | 3,3 °dH | — | — | Single value |
| Potassium | 2,35 mg/l | — | — | Single value |
| Total hardness | 11 °dH | — | — | 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 34471
- How hard is the water in Postcode 34471?
- Zweckverband KBN publishes a total hardness of 11 °dH for the supply zone Bad Arolsen (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: Freitag, 22. Mai 2026, retrieved on 14/07/2026.
- How much nitrate is in the drinking water in Postcode 34471?
- Zweckverband KBN publishes a nitrate value of 22,1 mg/l for the supply zone Bad Arolsen. The statutory parametric value is 50 mg/l; the measured value represents 44 % of the parametric value. Basis: Freitag, 22. Mai 2026, retrieved on 14/07/2026.
- Who supplies the drinking water in Postcode 34471?
- Zweckverband KBN. The values shown here come from the supply zone Bad Arolsen 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.