Drinking water in 23568
One supply zone, water supplier: Stadtwerke Lübeck Energie GmbH.
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.
unser Netz & SDS Roggenhorst (HWW)
Stadtwerke Lübeck Energie GmbHAssigned 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 | 2,1 mg/l | 50 mg/l | 4 % | Maximum |
| Escherichia coli (E. coli) | 0 St. pro 100 ml | 0/100 ml | — | Single value |
| Sulphate | 65,6 mg/l | 250 mg/l | 26 % | Maximum |
| Sodium | 30,4 mg/l | 200 mg/l | 15 % | Maximum |
Show all recorded parameters (27 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 St. pro 100 ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 St. pro 100 ml | 0/100 ml | — | Single value |
Chemical parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Bisphenol A | < 0,05 µg/l below limit of quantification | 2.5 µg/l | < 2 % * | Single value |
| Boron | 0,08 mg/l | 1 mg/l | 8 % | Maximum |
| Bromate | < 0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Cadmium | < 0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Single value |
| Copper | 0,13 mg/l | 2 mg/l | 7 % | Maximum |
| Fluoride | 0,28 mg/l | 1.5 mg/l | 19 % | Maximum |
| Nitrate | 2,1 mg/l | 50 mg/l | 4 % | Maximum |
* 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 43,8 mg/l | 250 mg/l | 18 % | Maximum |
| Coliform bacteria | 0 St. pro 100 ml | 0/100 ml | — | Single value |
| Conductivity (25 °C) | 681 µS/cm | 2,790 µS/cm | — | Maximum |
| Oxidisability | 1,91 mg/l | 5 mg/l O2 | — | Maximum |
| pH | 7,58 – | 6,5–9,5 | — | Maximum |
| Sodium | 30,4 mg/l | 200 mg/l | 15 % | Maximum |
| Sulphate | 65,6 mg/l | 250 mg/l | 26 % | Maximum |
| Temperature | 10,6 °C | — | — | Maximum |
| Total organic carbon (TOC) | 2,4 mg/l | ohne anormale Veränderung | — | Maximum |
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 521 mmol/l | — | — | Maximum |
| Carbonate hardness | 15,6 °dH | — | — | Maximum |
| Hydrogen carbonate | 340 mg/l | — | — | Maximum |
| Magnesium | 10,3 mg/l | — | — | Maximum |
| Oxygen | 10,8 mg/l | — | — | Maximum |
| Potassium | 3,4 mg/l | — | — | Maximum |
| Saturation index | 0,46 – | — | — | Maximum |
| Total hardness | 3,14 mmol/l | — | — | Maximum |
| Zinc | 0,025 mg/l | — | — | Maximum |
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 23568
- How hard is the water in Postcode 23568?
- Stadtwerke Lübeck Energie GmbH publishes a total hardness of 3,14 mmol/l for the supply zone unser Netz & SDS Roggenhorst (HWW) — that corresponds to 17.6 °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: Juni 2025, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Postcode 23568?
- Stadtwerke Lübeck Energie GmbH publishes a nitrate value of 2,1 mg/l for the supply zone unser Netz & SDS Roggenhorst (HWW). The statutory parametric value is 50 mg/l; the measured value represents 4 % of the parametric value. Basis: Juni 2025, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 23568?
- Stadtwerke Lübeck Energie GmbH. The values shown here come from the supply zone unser Netz & SDS Roggenhorst (HWW) 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.