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Drinking water in 79541

One supply zone, water supplier: Stadtwerke Lörrach GmbH & Co. KG (Betriebsführung badenova / badenovaNETZE 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.

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

Water hardness
8.5 °dH
Hardness range medium
Key values ON Brauerei Lasser, Lörrach
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 8,8 mg/l 50 mg/l
18 %
Single value
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Sulphate 12 mg/l 250 mg/l
5 %
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 (87 — most recent value per parameter)

Chemical parameters (53)

Chemical parameters – ON Brauerei Lasser, Lörrach
Parameter Value Parametric value Share of the parametric value Reference
1,1,1-Trichloroethane <0,001 mg/l
below limit of quantification
Single value
1,2-dichloroethane <0,00075 mg/l
below limit of quantification
3 µg/l
< 25 % *
Single value
Antimony <0,0005 mg/l
below limit of quantification
5 µg/l
< 10 % *
Single value
Arsenic 0,0018 mg/l 10 µg/l
18 %
Single value
Atrazine <0,02 µg/l
below limit of quantification
Single value
Benzene <0,00025 mg/l
below limit of quantification
1 µg/l
< 25 % *
Single value
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Single value
Benzo(b)fluoranthene <0,01 µg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0,01 µg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0,01 µg/l
below limit of quantification
Single value
Bisphenol A <0,5 µg/l
below limit of quantification
2.5 µg/l
< 20 % *
Single value
Boron 0,014 mg/l 1 mg/l
1 %
Single value
Bromacil <0,02 µg/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
Cadmium <0,0001 mg/l
below limit of quantification
3 µg/l
< 3 % *
Single value
Chlorate 0,01 mg/l 70 µg/l
14 %
Single value
Chlorite <0,05 mg/l
below limit of quantification
0.2 mg/l
< 25 % *
Single value
Chromium <0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
cis-1,2-Dichloroethene <0,005 mg/l
below limit of quantification
Single value
Copper 0,077 mg/l 2 mg/l
4 %
Single value
Cyanazine <0,02 µg/l
below limit of quantification
Single value
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Desethylatrazine <0,02 µg/l
below limit of quantification
Single value
Desisopropylatrazine <0,02 µg/l
below limit of quantification
Single value
Dibromoacetic acid <1,0 µg/l
below limit of quantification
Single value
Dibromochloromethane <0,001 mg/l
below limit of quantification
Single value
Dichloroacetic acid <1,0 µg/l
below limit of quantification
Single value
Dichloromethane <0,005 mg/l
below limit of quantification
Single value
Fluoranthene <0,01 µg/l
below limit of quantification
Single value
Fluoride 0,15 mg/l 1.5 mg/l
10 %
Single value
Haloacetic acids (HAA) <5 µg/l
below limit of quantification
60 µg/l
< 8 % *
Single value
Hexazinone <0,02 µg/l
below limit of quantification
Single value
Indeno(1,2,3-cd)pyrene <0,01 µg/l
below limit of quantification
Single value
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Mercury <0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Metalaxyl <0,02 µg/l
below limit of quantification
Single value
Metazachlor <0,02 µg/l
below limit of quantification
Single value
Metolachlor <0,02 µg/l
below limit of quantification
Single value
Nickel <0,001 mg/l
below limit of quantification
20 µg/l
< 5 % *
Single value
Nitrate 8,8 mg/l 50 mg/l
18 %
Single value
Nitrite 0,11 mg/l 0.5 mg/l
22 %
Single value
Propazine <0,02 µg/l
below limit of quantification
Single value
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Simazine <0,02 µg/l
below limit of quantification
Single value
Terbuthylazine <0,02 µg/l
below limit of quantification
Single value
Tetrachloroethene <0,001 mg/l
below limit of quantification
Single value
Tetrachloromethane <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 <0,001 mg/l
below limit of quantification
50 µg/l
< 2 % *
Single value
Uranium <0,0005 mg/l
below limit of quantification
10 µg/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.

PFAS (14)

PFAS – ON Brauerei Lasser, Lörrach
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) 1,4 ng/l Single value
Perfluorobutanoic acid (PFBA) <1,0 ng/l
below limit of quantification
Single value
Perfluorodecane sulfonic acid (PFDS) <1,0 ng/l
below limit of quantification
Single value
Perfluorodecanoic acid (PFDA) 2,5 ng/l Single value
Perfluoroheptane sulfonic acid (PFHpS) <1,0 ng/l
below limit of quantification
Single value
Perfluoroheptanoic acid (PFHpA) 2,9 ng/l Single value
Perfluorohexane sulfonic acid (PFHxS) <1,0 ng/l
below limit of quantification
Single value
Perfluorohexanoic acid (PFHxA) 3,5 ng/l Single value
Perfluorononane sulfonic acid (PFNS) <1,0 ng/l
below limit of quantification
Single value
Perfluorononanoic acid (PFNA) 1,4 ng/l Single value
Perfluorooctanesulfonic acid (PFOS) 6,2 ng/l Single value
Perfluorooctanoic acid (PFOA) 4,9 ng/l Single value
Perfluoropentanesulfonic acid (PFPeS) <1,0 ng/l
below limit of quantification
Single value
Perfluoropentanoic acid (PFPeA) 3,5 ng/l Single value

Indicator parameters (15)

Indicator parameters – ON Brauerei Lasser, Lörrach
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Ammonium <0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value
Calcite dissolution capacity -1,9 mg/l 5 mg/l CaCO3 Single value
Chloride 12 mg/l 250 mg/l
5 %
Single value
Clostridium perfringens (including spores) 0 KBE/100ml 0/100 ml Single value
Conductivity (25 °C) 334 µS/cm 2,790 µS/cm Single value
Iron <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Manganese <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Odour geruchlos für den Verbraucher annehmbar Single value
pH 7,71 6,5–9,5 Single value
Sodium 10,6 mg/l 200 mg/l
5 %
Single value
Sulphate 12 mg/l 250 mg/l
5 %
Single value
Temperature 13,4 °C Single value
Total organic carbon (TOC) 0,54 mg/l ohne anormale Veränderung Single value
Turbidity 0,35 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 (5)

Further parameters – ON Brauerei Lasser, Lörrach
Parameter Value Parametric value Share of the parametric value Reference
Calcium 51,5 mg/l Single value
Hydrogen carbonate 169 mg/l Single value
Magnesium 5,4 mg/l Single value
Potassium 1,9 mg/l Single value
Total hardness 1,51 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.

Source: https://api.wasserportal.info/api/public/qualitaet/trinkwasseranalyse/005f611b-b75b-4607-95ca-de11c9714fd6 · 27.03.2026 · Prüfzeitraum 18.02.2026 - 27.03.2026 (Entnahmedatum 18.02.2026, 09:05) · retrieved on 11/07/2026

Frequent questions about postcode 79541

How hard is the water in Postcode 79541?
Stadtwerke Lörrach GmbH & Co. KG (Betriebsführung badenova / badenovaNETZE GmbH) publishes a total hardness of 1,51 mmol/l for the supply zone ON Brauerei Lasser, Lörrach — that corresponds to 8.5 °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: 27.03.2026, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Postcode 79541?
Stadtwerke Lörrach GmbH & Co. KG (Betriebsführung badenova / badenovaNETZE GmbH) publishes a nitrate value of 8,8 mg/l for the supply zone ON Brauerei Lasser, Lörrach. The statutory parametric value is 50 mg/l; the measured value represents 18 % of the parametric value. Basis: 27.03.2026, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 79541?
Stadtwerke Lörrach GmbH & Co. KG (Betriebsführung badenova / badenovaNETZE GmbH). The values shown here come from the supply zone ON Brauerei Lasser, Lörrach 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.