Drinking water in 18258
For this postcode Zweckverband KÜHLUNG publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 1 underneath.
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.
KÜHLUNG (Hinter Bollhagen)
Zweckverband KÜHLUNGAssigned 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 | 4,04 mg/l | 50 mg/l | 8 % | Single value |
| Sulphate | 128 mg/l | 250 mg/l | 51 % | Single value |
| Sodium | 27 mg/l | 200 mg/l | 13 % | Single value |
Show all recorded parameters (15 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Copper | <0,003 mg/l below limit of quantification | 2 mg/l | < 0.2 % * | Single value |
| Fluoride | 0,22 mg/l | 1.5 mg/l | 15 % | Single value |
| Nitrate | 4,04 mg/l | 50 mg/l | 8 % | Single value |
| Uranium | 0,00038 mg/l | 10 µg/l | 4 % | 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 (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | <0,020 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value |
| Chloride | 44 mg/l | 250 mg/l | 18 % | Single value |
| Iron | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Manganese | <0,002 mg/l below limit of quantification | 50 µg/l | < 4 % * | Single value |
| pH | 7,19 - | 6,5–9,5 | — | Single value |
| Sodium | 27 mg/l | 200 mg/l | 13 % | Single value |
| Sulphate | 128 mg/l | 250 mg/l | 51 % | Single value |
| Total organic carbon (TOC) | 4,2 mg/l | ohne anormale Veränderung | — | 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 (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 135 mg/l | — | — | Single value |
| Magnesium | 14,3 mg/l | — | — | Single value |
| Potassium | 8,93 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.
Show 1 more supply zone in this postcode
Wasserwerk KÜHLUNG
Zweckverband KÜHLUNGAssigned 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 | 4,04 mg/l | 50 mg/l | 8 % | Single value |
| Sulphate | 128 mg/l | 250 mg/l | 51 % | Single value |
| Sodium | 27 mg/l | 200 mg/l | 13 % | Single value |
Show all recorded parameters (15 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Copper | <0,003 mg/l below limit of quantification | 2 mg/l | < 0.2 % * | Single value |
| Fluoride | 0,22 mg/l | 1.5 mg/l | 15 % | Single value |
| Nitrate | 4,04 mg/l | 50 mg/l | 8 % | Single value |
| Uranium | 0,00038 mg/l | 10 µg/l | 4 % | 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 (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | <0,020 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value |
| Chloride | 44 mg/l | 250 mg/l | 18 % | Single value |
| Iron | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Manganese | <0,002 mg/l below limit of quantification | 50 µg/l | < 4 % * | Single value |
| pH | 7,19 - | 6,5–9,5 | — | Single value |
| Sodium | 27 mg/l | 200 mg/l | 13 % | Single value |
| Sulphate | 128 mg/l | 250 mg/l | 51 % | Single value |
| Total organic carbon (TOC) | 4,2 mg/l | ohne anormale Veränderung | — | 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 (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 135 mg/l | — | — | Single value |
| Magnesium | 14,3 mg/l | — | — | Single value |
| Potassium | 8,93 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 18258
- How much nitrate is in the drinking water in Postcode 18258?
- Zweckverband KÜHLUNG publishes a nitrate value of 4,04 mg/l for the supply zone KÜHLUNG (Hinter Bollhagen). The statutory parametric value is 50 mg/l; the measured value represents 8 % of the parametric value. Basis: Publication by the water supplier, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 18258?
- Zweckverband KÜHLUNG. The values shown here come from the supply zone KÜHLUNG (Hinter Bollhagen) 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.