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Drinking water in 41379

One supply zone, water supplier: Gemeindewerke Brüggen 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
10.9 °dH
Hardness range Mittel
Key values Brüggen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 24,3 mg/l 50 mg/l
49 %
Single value
Lead < 0,002 mg/l
below limit of quantification
10 µg/l
< 20 % *
Single value
Sulphate 106 mg/l 250 mg/l
42 %
Single value
Sodium 16,6 mg/l 200 mg/l
8 %
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 (22 — most recent value per parameter)

Chemical parameters (9)

Chemical parameters – Brüggen
Parameter Value Parametric value Share of the parametric value Reference
Arsenic < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Cadmium < 0,0002 mg/l
below limit of quantification
3 µg/l
< 7 % *
Single value
Fluoride 0,05 mg/l 1.5 mg/l
3 %
Single value
Lead < 0,002 mg/l
below limit of quantification
10 µg/l
< 20 % *
Single value
Mercury < 0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Nickel 0,011 mg/l 20 µg/l
55 %
Single value
Nitrate 24,3 mg/l 50 mg/l
49 %
Single value
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value
Polycyclic aromatic hydrocarbons 0,000 µg/l 0.1 µg/l
0 %
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 (7)

Indicator parameters – Brüggen
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
Chloride 39,6 mg/l 250 mg/l
16 %
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
pH 8,05 6,5–9,5 Single value
Sodium 16,6 mg/l 200 mg/l
8 %
Single value
Sulphate 106 mg/l 250 mg/l
42 %
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 (6)

Further parameters – Brüggen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 58,6 mg/l Single value
Hardness range (WRMG) Mittel Single value
Magnesium 11,6 mg/l Single value
Potassium 2,66 mg/l Single value
Sum of alkaline earth metals 2,12 mmol/l Single value
Total hardness 10,9 °dH 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 41379

How hard is the water in Postcode 41379?
Gemeindewerke Brüggen GmbH publishes a total hardness of 10.9 °dH for the supply zone Brüggen (hardness range Mittel). 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: 01.06.2026, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Postcode 41379?
Gemeindewerke Brüggen GmbH publishes a nitrate value of 24,3 mg/l for the supply zone Brüggen. The statutory parametric value is 50 mg/l; the measured value represents 49 % of the parametric value. Basis: 01.06.2026, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 41379?
Gemeindewerke Brüggen GmbH. The values shown here come from the supply zone Brüggen 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.