Drinking water in Westensee
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.
Wasserwerk der Gemeinde Bredenbek - Kindergarten Bredenbek, Küche
Gemeinde Bredenbek (Wasserwerk der Gemeinde Bredenbek)Assigned 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 | 2,15 mg/l | 50 mg/l | 4 % | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Sulphate | 8,3 mg/l | 250 mg/l | 3 % | Single value |
| Sodium | 10,6 mg/l | 200 mg/l | 5 % | 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.
Show all recorded parameters (54 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
Chemical parameters (22)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Single value |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Benzo(a)pyrene | <0,000004 mg/l below limit of quantification | 10 ng/l | < 40 % * | Single value |
| Benzo(b)fluoranthene | <0,000004 mg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,000002 mg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,000004 mg/l below limit of quantification | — | — | Single value |
| Bisphenol A | <0,00005 (NWG) mg/l not detectable | 2.5 µg/l | — | Single value |
| Bromodichloromethane | <0,00020 mg/l below limit of quantification | — | — | Single value |
| Cadmium | <0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Copper | 0,016 mg/l | 2 mg/l | 0.8 % | Single value |
| Dibromochloromethane | <0,00020 mg/l below limit of quantification | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | <0,000002 mg/l below limit of quantification | — | — | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Nickel | <0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Single value |
| Nitrate | 2,15 mg/l | 50 mg/l | 4 % | Single value |
| Nitrate/50 + Nitrite/3 | 0,043 mg/l | 1 | — | Single value |
| Nitrite | <0,005 (+) mg/l below limit of quantification | 0.5 mg/l | < 1 % * | Single value |
| Polycyclic aromatic hydrocarbons | n.b. mg/l not determined | 0.1 µg/l | — | Single value |
| Tribromomethane (bromoform) | <0,00030 mg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | <0,00010 mg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | n.b. mg/l not determined | 50 µg/l | — | Single value |
| Vinyl chloride | <0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | 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 (19)
| 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 | <0,020 (+) mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value |
| Calcite dissolution capacity | -12 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 17 mg/l | 250 mg/l | 7 % | Single value |
| Coliform bacteria | 0 KBE/100ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | farblos Unit not stated in the document | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 520 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | <0,003 (NWG) mg/l not detectable | 0.2 mg/l | — | Single value |
| Manganese | <0,002 (NWG) mg/l not detectable | 50 µg/l | — | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,50 | 6,5–9,5 | — | Single value |
| Sodium | 10,6 mg/l | 200 mg/l | 5 % | Single value |
| Sulphate | 8,3 mg/l | 250 mg/l | 3 % | Single value |
| Taste | annehmbar | für den Verbraucher annehmbar | — | Single value |
| Temperature | 22,4 °C | — | — | Single value |
| Total organic carbon (TOC) | 2,6 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | keine Unit not stated in the document | 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 (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 4,94 mmol/l | — | — | Single value |
| Base capacity to pH 8.2 | 0,54 mmol/l | — | — | Single value |
| Calcium | 89,2 mg/l | — | — | Single value |
| Carbonate hardness | 13,7 °dH | — | — | Single value |
| Free carbon dioxide | 23 mg/l | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Hydrogen carbonate | 298,4 mg/l | — | — | Single value |
| Magnesium | 10,7 mg/l | — | — | Single value |
| Oxygen | 5,3 mg/l | — | — | Single value |
| Phosphate | 0,05 mg/l | — | — | Single value |
| Potassium | 3,87 mg/l | — | — | Single value |
| Total hardness | 2,66 mmol/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.
Postcodes in this zone: 24259
Show 1 more supply zone
Wasserwerk Felde
Gemeinde Bredenbek (Wasserwerk der Gemeinde Bredenbek)Assigned 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 | 0,955 mg/l | 50 mg/l | 2 % | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Sulphate | 46 mg/l | 250 mg/l | 18 % | Single value |
| Sodium | 17,2 mg/l | 200 mg/l | 9 % | 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.
Show all recorded parameters (55 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Single value |
Chemical parameters (22)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Single value |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Benzo(a)pyrene | <0,000002 mg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Benzo(b)fluoranthene | <0,000002 mg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,000002 mg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,000002 mg/l below limit of quantification | — | — | Single value |
| Bisphenol A | <0,00005 (NWG) mg/l not detectable | 2.5 µg/l | — | Single value |
| Bromodichloromethane | <0,00020 mg/l below limit of quantification | — | — | Single value |
| Cadmium | <0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Copper | 0,023 mg/l | 2 mg/l | 1 % | Single value |
| Dibromochloromethane | <0,00020 mg/l below limit of quantification | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | <0,000002 mg/l below limit of quantification | — | — | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Nickel | <0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Single value |
| Nitrate | 0,955 mg/l | 50 mg/l | 2 % | Single value |
| Nitrate/50 + Nitrite/3 | 0,019 mg/l | 1 | — | Single value |
| Nitrite | <0,001 (NWG) mg/l not detectable | 0.5 mg/l | — | Single value |
| Polycyclic aromatic hydrocarbons | n.b. mg/l not determined | 0.1 µg/l | — | Single value |
| Tribromomethane (bromoform) | <0,00030 mg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | <0,00010 mg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | n.b. mg/l not determined | 50 µg/l | — | Single value |
| Vinyl chloride | <0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | 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 (19)
| 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 | <0,020 (+) mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value |
| Calcite dissolution capacity | -16 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 26 mg/l | 250 mg/l | 10 % | Single value |
| Coliform bacteria | 0 KBE/100ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 1 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | 0,21 m-1 | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 625 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | <0,003 (NWG) mg/l not detectable | 0.2 mg/l | — | Single value |
| Manganese | <0,002 (NWG) mg/l not detectable | 50 µg/l | — | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,78 | 6,5–9,5 | — | Single value |
| Sodium | 17,2 mg/l | 200 mg/l | 9 % | Single value |
| Sulphate | 46 mg/l | 250 mg/l | 18 % | Single value |
| Taste | ohne Fremdgeschmack | für den Verbraucher annehmbar | — | Single value |
| Temperature | 18,9 °C | — | — | Single value |
| Total organic carbon (TOC) | 2,2 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | <0,05 NTU below limit of quantification | 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 (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 5,12 mmol/l | — | — | Single value |
| Base capacity to pH 8.2 | 0,49 mmol/l | — | — | Single value |
| Calcium | 105 mg/l | — | — | Single value |
| Carbonate hardness | 14,2 °dH | — | — | Single value |
| Free carbon dioxide | 21 mg/l | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Hydrogen carbonate | 309,4 mg/l | — | — | Single value |
| Magnesium | 8,84 mg/l | — | — | Single value |
| Oxygen | 7,3 mg/l | — | — | Single value |
| Phosphate | <0,01 (NWG) mg/l not detectable | — | — | Single value |
| Potassium | 1,64 mg/l | — | — | Single value |
| Total hardness | 2,98 mmol/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.
Postcodes in this zone: 24259
Frequently asked questions about drinking water in Westensee
- How hard is the water in Westensee?
- Gemeinde Bredenbek (Wasserwerk der Gemeinde Bredenbek) publishes a total hardness of 2,66 mmol/l for the supply zone Wasserwerk der Gemeinde Bredenbek - Kindergarten Bredenbek, Küche — that corresponds to 14.9 °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: 22.10.2025, retrieved on 18/08/2026.
- How much nitrate is in the drinking water in Westensee?
- Gemeinde Bredenbek (Wasserwerk der Gemeinde Bredenbek) publishes a nitrate value of 2,15 mg/l for the supply zone Wasserwerk der Gemeinde Bredenbek - Kindergarten Bredenbek, Küche. The statutory parametric value is 50 mg/l; the measured value represents 4 % of the parametric value. Basis: 22.10.2025, retrieved on 18/08/2026.
- Who supplies the drinking water in Westensee?
- Gemeinde Bredenbek (Wasserwerk der Gemeinde Bredenbek). The values shown here come from the supply zone Wasserwerk der Gemeinde Bredenbek - Kindergarten Bredenbek, Küche 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.