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Drinking water in 59929

One supply zone, water supplier: Stadtwerke Brilon.

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.

Schule Thülen

Stadtwerke Brilon

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

Key values Schule Thülen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 19 mg/l 50 mg/l
38 %
Single value · Schule Thülen
Sulphate 20 mg/l 250 mg/l
8 %
Single value · Schule Thülen
Sodium 30,9 mg/l 200 mg/l
15 %
Single value · Schule Thülen
Show all recorded parameters (12 — most recent value per parameter)

Chemical parameters (2)

Chemical parameters – Schule Thülen
Parameter Value Parametric value Share of the parametric value Reference
Fluoride <0,05 mg/l
below limit of quantification
1.5 mg/l
< 3 % *
Single value · Schule Thülen
Nitrate 19 mg/l 50 mg/l
38 %
Single value · Schule Thülen

* 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 – Schule Thülen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,010 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value · Schule Thülen
Chloride 44 mg/l 250 mg/l
18 %
Single value · Schule Thülen
Iron 0,013 mg/l 0.2 mg/l
6 %
Single value · Schule Thülen
Manganese <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Schule Thülen
pH 7,40 6,5–9,5 Single value · Schule Thülen
Sodium 30,9 mg/l 200 mg/l
15 %
Single value · Schule Thülen
Sulphate 20 mg/l 250 mg/l
8 %
Single value · Schule Thülen

* 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 (3)

Further parameters – Schule Thülen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 86,9 mg/l Single value · Schule Thülen
Magnesium 10,1 mg/l Single value · Schule Thülen
Potassium 1,1 mg/l Single value · Schule Thülen

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://www.stadtwerke-brilon.de/wp-content/uploads/Weisse-Frau-5.pdf · Januar 2026 · Analyse vom 02.09.2025 · retrieved on 11/07/2026

Frequent questions about postcode 59929

How much nitrate is in the drinking water in Postcode 59929?
Stadtwerke Brilon publishes a nitrate value of 19 mg/l for the supply zone Schule Thülen. The statutory parametric value is 50 mg/l; the measured value represents 38 % of the parametric value. Basis: Januar 2026, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 59929?
Stadtwerke Brilon. The values shown here come from the supply zone Schule Thülen 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.