Who supplies the drinking water in Lübeck St. Lorenz-Süd und Buntekuh-Süd?

Stadtwerke Luebeck Energie GmbH (Netzbetrieb: TraveNetz 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.

Drinking water in Lübeck St. Lorenz-Süd und Buntekuh-Süd

One supply zone, water supplier: Stadtwerke Luebeck Energie GmbH (Netzbetrieb: TraveNetz GmbH).

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.

< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

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 Luebeck Energie GmbH (Netzbetrieb: TraveNetz GmbH)

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Key values unser Netz & SDS Roggenhorst (HWW)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	bis 2,1 mg/l	50 mg/l	—	Single value
Escherichia coli (E. coli)	0 St. pro 100 ml	0/100 ml	—	Single value
Sulphate	11,0 bis 65,6 mg/l	250 mg/l	—	Single value
Sodium	10,5 bis 30,4 mg/l	200 mg/l	—	Single value

Show all recorded parameters (27 — most recent value per parameter)

Microbiology (2)

Microbiology – unser Netz & SDS Roggenhorst (HWW)
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)

Chemical parameters – unser Netz & SDS Roggenhorst (HWW)
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	bis 0,08 mg/l	1 mg/l	—	Single value
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	bis 0,13 mg/l	2 mg/l	—	Single value
Fluoride	bis 0,28 mg/l	1.5 mg/l	—	Single value
Nitrate	bis 2,1 mg/l	50 mg/l	—	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 (9)

Indicator parameters – unser Netz & SDS Roggenhorst (HWW)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	9,5 bis 43,8 mg/l	250 mg/l	—	Single value
Coliform bacteria	0 St. pro 100 ml	0/100 ml	—	Single value
Conductivity (25 °C)	570 - 681 µS/cm	2,790 µS/cm	—	Single value
Oxidisability	bis 1,91 mg/l	5 mg/l O2	—	Single value
pH	7,20 bis 7,58 –	6,5–9,5	—	Single value
Sodium	10,5 bis 30,4 mg/l	200 mg/l	—	Single value
Sulphate	11,0 bis 65,6 mg/l	250 mg/l	—	Single value
Temperature	9,0 bis 10,6 °C	—	—	Single value
Total organic carbon (TOC)	1,4 bis 2,4 mg/l	ohne anormale Veränderung	—	Single value

Further parameters (9)

Further parameters – unser Netz & SDS Roggenhorst (HWW)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	3,71 bis 521 mmol/l	—	—	Single value
Carbonate hardness	13,0 - 15,6 °dH	—	—	Single value
Hydrogen carbonate	bis 340 mg/l	—	—	Single value
Magnesium	6 bis 10,3 mg/l	—	—	Single value
Oxygen	bis 10,8 mg/l	—	—	Single value
Potassium	1,4 bis 3,4 mg/l	—	—	Single value
Saturation index	bis 0,46 –	—	—	Single value
Total hardness	2,69 bis 3,14 mmol/l	—	—	Single value
Zinc	bis 0,025 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.

Source: https://a.storyblok.com/f/187280/x/fc59a74fab/2506-006_swl-trinkwasserqualitat-lubeck-2025_l1_bf.pdf · Juni 2025 · retrieved on 11/07/2026

Postcodes in this zone: 23558

Frequently asked questions about drinking water in Lübeck St. Lorenz-Süd und Buntekuh-Süd

Who supplies the drinking water in Lübeck St. Lorenz-Süd und Buntekuh-Süd?: Stadtwerke Luebeck Energie GmbH (Netzbetrieb: TraveNetz 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.