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Drinking water in Münster

There are 4 places with this name — listed below by area. To determine the exact match, look up the postcode.

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.

Münster (48143, 48145, 48147, 48149, 48151, 48153, 48155, 48157, 48159, 48161, 48163, 48165, 48167)

Bezug (Gelsenwasser AG)

Stadtwerke Münster GmbH

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

Water hardness
11 °dH
Hardness range mittel
Key values Bezug (Gelsenwasser AG)
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000020 mg/l — — Mean · Bezug (Gelsenwasser AG)
Nitrate 11,42 mg/l 50 mg/l
23 %
Mean · Bezug (Gelsenwasser AG)
Lead < 0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Bezug (Gelsenwasser AG)
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Bezug (Gelsenwasser AG)
Sulphate 48,4 mg/l 250 mg/l
19 %
Mean · Bezug (Gelsenwasser AG)
Sodium 19,0 mg/l 200 mg/l
9 %
Mean · Bezug (Gelsenwasser AG)

* 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 (47 — most recent value per parameter)

Microbiology (2)

Microbiology – Bezug (Gelsenwasser AG)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Bezug (Gelsenwasser AG)
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Mean · Bezug (Gelsenwasser AG)

Chemical parameters (21)

Chemical parameters – Bezug (Gelsenwasser AG)
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane < 0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Bezug (Gelsenwasser AG)
Arsenic < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Bezug (Gelsenwasser AG)
Benzene < 0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Bezug (Gelsenwasser AG)
Benzo(a)pyrene < 0,000002 mg/l
below limit of quantification
 10 ng/l
< 20 % *
Mean · Bezug (Gelsenwasser AG)
Benzo(b)fluoranthene < 0,000005 mg/l
below limit of quantification
 — — Mean · Bezug (Gelsenwasser AG)
Benzo(ghi)perylene < 0,000005 mg/l
below limit of quantification
 — — Mean · Bezug (Gelsenwasser AG)
Benzo(k)fluoranthene < 0,000005 mg/l
below limit of quantification
 — — Mean · Bezug (Gelsenwasser AG)
Bisphenol A < 0,00001 mg/l
below limit of quantification
 2.5 µg/l
< 0.4 % *
Mean · Bezug (Gelsenwasser AG)
Boron 0,06 mg/l 1 mg/l
6 %
Mean · Bezug (Gelsenwasser AG)
Bromate < 0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Bezug (Gelsenwasser AG)
Cadmium < 0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Mean · Bezug (Gelsenwasser AG)
Fluoride 0,16 mg/l 1.5 mg/l
11 %
Mean · Bezug (Gelsenwasser AG)
Lead < 0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Bezug (Gelsenwasser AG)
Microcystin-LR < 0,00007 mg/l
below limit of quantification
 — — Mean · Bezug (Gelsenwasser AG)
Nickel < 0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Bezug (Gelsenwasser AG)
Nitrate 11,42 mg/l 50 mg/l
23 %
Mean · Bezug (Gelsenwasser AG)
Nitrite < 0,02 mg/l
below limit of quantification
 0.5 mg/l
< 4 % *
Mean · Bezug (Gelsenwasser AG)
Selenium < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Bezug (Gelsenwasser AG)
Tetrachloroethene < 0,0001 mg/l
below limit of quantification
 — — Mean · Bezug (Gelsenwasser AG)
Trichloroethene < 0,0001 mg/l
below limit of quantification
 — — Mean · Bezug (Gelsenwasser AG)
Uranium 0,0005 mg/l 10 µg/l
5 %
Mean · Bezug (Gelsenwasser AG)

* 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 (2)

PFAS – Bezug (Gelsenwasser AG)
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS 0,000009 mg/l — — Mean · Bezug (Gelsenwasser AG)
Sum of PFAS 0,000020 mg/l — — Mean · Bezug (Gelsenwasser AG)

Indicator parameters (14)

Indicator parameters – Bezug (Gelsenwasser AG)
Parameter Value Parametric value Share of the parametric value Reference
Ammonium 0,1 mg/l 0.5 mg/l
20 %
Mean · Bezug (Gelsenwasser AG)
Calcite dissolution capacity 0,6 mg/l 5 mg/l CaCO3 — Mean · Bezug (Gelsenwasser AG)
Chloride 26,8 mg/l 250 mg/l
11 %
Mean · Bezug (Gelsenwasser AG)
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Bezug (Gelsenwasser AG)
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Bezug (Gelsenwasser AG)
Colony count 22 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Bezug (Gelsenwasser AG)
Colony count 36 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Bezug (Gelsenwasser AG)
Odour 0 ohne für den Verbraucher annehmbar — Mean · Bezug (Gelsenwasser AG)
pH 7,6 pH-Einheiten 6,5–9,5 — Mean · Bezug (Gelsenwasser AG)
Sodium 19,0 mg/l 200 mg/l
9 %
Mean · Bezug (Gelsenwasser AG)
Sulphate 48,4 mg/l 250 mg/l
19 %
Mean · Bezug (Gelsenwasser AG)
Taste 0 ohne für den Verbraucher annehmbar — Mean · Bezug (Gelsenwasser AG)
Total organic carbon (TOC) 2,83 mg/l ohne anormale Veränderung — Mean · Bezug (Gelsenwasser AG)
Turbidity 0,11 ohne 1 NTU — Mean · Bezug (Gelsenwasser AG)

Further parameters (8)

Further parameters – Bezug (Gelsenwasser AG)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,03 mmol/l — — Mean · Bezug (Gelsenwasser AG)
Base capacity to pH 8.2 0,19 mmol/l — — Mean · Bezug (Gelsenwasser AG)
Calcite precipitation capacity 2,3 mg/l — — Mean · Bezug (Gelsenwasser AG)
Calcium 71,2 mg/l — — Mean · Bezug (Gelsenwasser AG)
Hardness range (WRMG) mittel — — Mean · Bezug (Gelsenwasser AG)
Magnesium 4,5 mg/l — — Mean · Bezug (Gelsenwasser AG)
Potassium 5,3 mg/l — — Mean · Bezug (Gelsenwasser AG)
Total hardness 11,0 °dH — — Mean · Bezug (Gelsenwasser AG)

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-muenster.de/Stadtwerke/Dokumente/Trinkwasser/Trinkwasseranalytik.pdf · 26.02.2026 · Jahresmittelwerte 2025 · retrieved on 25/07/2026

Postcodes in this zone: 48143 , 48145 , 48147 , 48149 , 48151 , 48153 , 48155 , 48157 , 48159 , 48161 , 48163 , 48165 , 48167

Show 5 more supply zones

Hohe Ward

Stadtwerke Münster GmbH

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

Water hardness
12.5 °dH
Hardness range 2,28
Key values Hohe Ward
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000022 mg/l — — Mean · Hohe Ward · Source [1]
Nitrate 5,33 mg/l 50 mg/l
11 %
Mean · Hohe Ward · Source [1]
Lead <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Hohe Ward · Source [1]
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Hohe Ward · Source [1]
Sulphate 51,5 mg/l 250 mg/l
21 %
Mean · Hohe Ward · Source [1]
Sodium 26,5 mg/l 200 mg/l
13 %
Mean · Hohe Ward · Source [1]

* 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 (49 — most recent value per parameter)

Microbiology (2)

Microbiology – Hohe Ward
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Hohe Ward · Source [1]
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Mean · Hohe Ward · Source [1]

Chemical parameters (22)

Chemical parameters – Hohe Ward
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Hohe Ward · Source [1]
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Hohe Ward · Source [1]
Benzene <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Hohe Ward · Source [1]
Benzo(a)pyrene <0,000002 mg/l
below limit of quantification
 10 ng/l
< 20 % *
Mean · Hohe Ward · Source [1]
Benzo(b)fluoranthene <0,000005 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Benzo(ghi)perylene <0,000005 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Benzo(k)fluoranthene <0,000005 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Bisphenol A <0,00001 mg/l
below limit of quantification
 2.5 µg/l
< 0.4 % *
Mean · Hohe Ward · Source [1]
Boron 0,05 mg/l 1 mg/l
5 %
Mean · Hohe Ward · Source [1]
Bromate <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Hohe Ward · Source [1]
Cadmium <0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Mean · Hohe Ward · Source [1]
Fluoride 0,15 mg/l 1.5 mg/l
10 %
Mean · Hohe Ward · Source [1]
Indeno(1,2,3-cd)pyrene <0,000005 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Lead <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Hohe Ward · Source [1]
Microcystin-LR <0,00007 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Hohe Ward · Source [1]
Nitrate 5,33 mg/l 50 mg/l
11 %
Mean · Hohe Ward · Source [1]
Nitrite <0,02 mg/l
below limit of quantification
 0.5 mg/l
< 4 % *
Mean · Hohe Ward · Source [1]
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Hohe Ward · Source [1]
Tetrachloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Trichloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Hohe Ward · Source [1]
Uranium 0,0010 mg/l 10 µg/l
10 %
Mean · Hohe Ward · Source [1]

* 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 (2)

PFAS – Hohe Ward
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS 0,000008 mg/l — — Mean · Hohe Ward · Source [1]
Sum of PFAS 0,000022 mg/l — — Mean · Hohe Ward · Source [1]

Indicator parameters (14)

Indicator parameters – Hohe Ward
Parameter Value Parametric value Share of the parametric value Reference
Ammonium <0,1 mg/l
below limit of quantification
 0.5 mg/l
< 20 % *
Mean · Hohe Ward · Source [1]
Calcite dissolution capacity 1,5 mg/l 5 mg/l CaCO3 — Mean · Hohe Ward · Source [1]
Chloride 42,9 mg/l 250 mg/l
17 %
Mean · Hohe Ward · Source [1]
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Hohe Ward · Source [1]
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Hohe Ward · Source [1]
Colony count 22 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Hohe Ward · Source [1]
Colony count 36 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Hohe Ward · Source [1]
Odour 0 ohne für den Verbraucher annehmbar — Single value · Hohe Ward · Source [1]
pH 7,4 pH-Einheiten 6,5–9,5 — Mean · Hohe Ward · Source [1]
Sodium 26,5 mg/l 200 mg/l
13 %
Mean · Hohe Ward · Source [1]
Sulphate 51,5 mg/l 250 mg/l
21 %
Mean · Hohe Ward · Source [1]
Taste 0 ohne für den Verbraucher annehmbar — Single value · Hohe Ward · Source [1]
Total organic carbon (TOC) 1,9 mg/l ohne anormale Veränderung — Mean · Hohe Ward · Source [1]
Turbidity 0,11 ohne 1 NTU — Mean · Hohe Ward · Source [1]

* 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 (9)

Further parameters – Hohe Ward
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,50 mmol/l — — Mean · Hohe Ward · Source [1]
Base capacity to pH 8.2 0,3 mmol/l — — Mean · Hohe Ward · Source [1]
Calcite precipitation capacity 0,8 mg/l — — Mean · Hohe Ward · Source [1]
Calcium 79,2 mg/l — — Mean · Hohe Ward · Source [1]
Carbonate hardness 8,895 °dH — — Mean · Hohe Ward · Source [2]
Hardness range (WRMG) 2,28 mmol/l — — Mean · Hohe Ward · Source [1]
Magnesium 6,0 mg/l — — Mean · Hohe Ward · Source [1]
Potassium 4,4 mg/l — — Mean · Hohe Ward · Source [1]
Total hardness 12,5 °dH — — Mean · Hohe Ward · Source [1]

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.

Sources: [1] https://www.stadtwerke-muenster.de/Stadtwerke/Dokumente/Trinkwasser/Trinkwasseranalytik.pdf · 26.02.2026 · Jahresmittelwerte 2025 · retrieved on 11/07/2026 [2] https://opendata.stadt-muenster.de/dataset/trinkwasseranalyse-der-stadtwerke-m%C3%BCnster · 2025-10-07 · 01.01.2018 bis 31.12.2020 · retrieved on 11/07/2026

Postcodes in this zone: 48143 , 48145 , 48147 , 48149 , 48151 , 48153 , 48155 , 48157 , 48159 , 48161 , 48163 , 48165 , 48167

Hornheide

Stadtwerke Münster GmbH

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

Water hardness
15.1 °dH
Hardness range 2,69
Key values Hornheide
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000021 mg/l — — Mean · Hornheide · Source [1]
Nitrate 5,12 mg/l 50 mg/l
10 %
Mean · Hornheide · Source [1]
Lead <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Hornheide · Source [1]
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Hornheide · Source [1]
Sulphate 61,1 mg/l 250 mg/l
24 %
Mean · Hornheide · Source [1]
Sodium 31,7 mg/l 200 mg/l
16 %
Mean · Hornheide · Source [1]

* 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 (48 — most recent value per parameter)

Microbiology (2)

Microbiology – Hornheide
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Hornheide · Source [1]
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Mean · Hornheide · Source [1]

Chemical parameters (22)

Chemical parameters – Hornheide
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Hornheide · Source [1]
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Hornheide · Source [1]
Benzene <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Hornheide · Source [1]
Benzo(a)pyrene <0,000002 mg/l
below limit of quantification
 10 ng/l
< 20 % *
Mean · Hornheide · Source [1]
Benzo(b)fluoranthene <0,000005 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Benzo(ghi)perylene <0,000005 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Benzo(k)fluoranthene <0,000005 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Bisphenol A <0,00001 mg/l
below limit of quantification
 2.5 µg/l
< 0.4 % *
Mean · Hornheide · Source [1]
Boron 0,06 mg/l 1 mg/l
6 %
Mean · Hornheide · Source [1]
Bromate <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Hornheide · Source [1]
Cadmium <0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Mean · Hornheide · Source [1]
Fluoride 0,13 mg/l 1.5 mg/l
9 %
Mean · Hornheide · Source [1]
Indeno(1,2,3-cd)pyrene <0,000005 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Lead <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Hornheide · Source [1]
Microcystin-LR <0,00007 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Hornheide · Source [1]
Nitrate 5,12 mg/l 50 mg/l
10 %
Mean · Hornheide · Source [1]
Nitrite <0,02 mg/l
below limit of quantification
 0.5 mg/l
< 4 % *
Mean · Hornheide · Source [1]
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Hornheide · Source [1]
Tetrachloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Trichloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Hornheide · Source [1]
Uranium 0,0007 mg/l 10 µg/l
7 %
Mean · Hornheide · Source [1]

* 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 (2)

PFAS – Hornheide
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS 0,000006 mg/l — — Mean · Hornheide · Source [1]
Sum of PFAS 0,000021 mg/l — — Mean · Hornheide · Source [1]

Indicator parameters (13)

Indicator parameters – Hornheide
Parameter Value Parametric value Share of the parametric value Reference
Ammonium <0,1 mg/l
below limit of quantification
 0.5 mg/l
< 20 % *
Mean · Hornheide · Source [1]
Chloride 48,0 mg/l 250 mg/l
19 %
Mean · Hornheide · Source [1]
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Hornheide · Source [1]
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Hornheide · Source [1]
Colony count 22 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Hornheide · Source [1]
Colony count 36 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Hornheide · Source [1]
Odour 0 ohne für den Verbraucher annehmbar — Single value · Hornheide · Source [1]
pH 7,4 pH-Einheiten 6,5–9,5 — Mean · Hornheide · Source [1]
Sodium 31,7 mg/l 200 mg/l
16 %
Mean · Hornheide · Source [1]
Sulphate 61,1 mg/l 250 mg/l
24 %
Mean · Hornheide · Source [1]
Taste 0 ohne für den Verbraucher annehmbar — Single value · Hornheide · Source [1]
Total organic carbon (TOC) 2,64 mg/l ohne anormale Veränderung — Mean · Hornheide · Source [1]
Turbidity 0,11 ohne 1 NTU — Mean · Hornheide · Source [1]

* 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 (9)

Further parameters – Hornheide
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 4,36 mmol/l — — Mean · Hornheide · Source [1]
Base capacity to pH 8.2 0,40 mmol/l — — Mean · Hornheide · Source [1]
Calcite precipitation capacity 8,6 mg/l — — Mean · Hornheide · Source [1]
Calcium 97,1 mg/l — — Mean · Hornheide · Source [1]
Carbonate hardness 11,475 °dH — — Mean · Hornheide · Source [2]
Hardness range (WRMG) 2,69 mmol/l — — Mean · Hornheide · Source [1]
Magnesium 6,3 mg/l — — Mean · Hornheide · Source [1]
Potassium 5,2 mg/l — — Mean · Hornheide · Source [1]
Total hardness 15,1 °dH — — Mean · Hornheide · Source [1]

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.

Sources: [1] https://www.stadtwerke-muenster.de/Stadtwerke/Dokumente/Trinkwasser/Trinkwasseranalytik.pdf · 26.02.2026 · Jahresmittelwerte 2025 · retrieved on 11/07/2026 [2] https://opendata.stadt-muenster.de/dataset/trinkwasseranalyse-der-stadtwerke-m%C3%BCnster · 2025-10-07 · 01.01.2018 bis 31.12.2020 · retrieved on 11/07/2026

Postcodes in this zone: 48143 , 48145 , 48147 , 48149 , 48151 , 48153 , 48155 , 48157 , 48159 , 48161 , 48163 , 48165 , 48167

Vennheide

Stadtwerke Münster GmbH

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

Water hardness
16.9 °dH
Hardness range 3,01
Key values Vennheide
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000018 mg/l — — Mean · Vennheide · Source [1]
Nitrate 9,56 mg/l 50 mg/l
19 %
Mean · Vennheide · Source [1]
Lead <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Vennheide · Source [1]
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Vennheide · Source [1]
Sulphate 84,9 mg/l 250 mg/l
34 %
Mean · Vennheide · Source [1]
Sodium 28,4 mg/l 200 mg/l
14 %
Mean · Vennheide · Source [1]

* 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 (48 — most recent value per parameter)

Microbiology (2)

Microbiology – Vennheide
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Vennheide · Source [1]
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Mean · Vennheide · Source [1]

Chemical parameters (22)

Chemical parameters – Vennheide
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Vennheide · Source [1]
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Vennheide · Source [1]
Benzene <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Vennheide · Source [1]
Benzo(a)pyrene <0,000002 mg/l
below limit of quantification
 10 ng/l
< 20 % *
Mean · Vennheide · Source [1]
Benzo(b)fluoranthene <0,000005 mg/l
below limit of quantification
 — — Mean · Vennheide · Source [1]
Benzo(ghi)perylene <0,000005 mg/l
below limit of quantification
 — — Mean · Vennheide · Source [1]
Benzo(k)fluoranthene <0,000005 mg/l
below limit of quantification
 — — Mean · Vennheide · Source [1]
Bisphenol A <0,00001 mg/l
below limit of quantification
 2.5 µg/l
< 0.4 % *
Mean · Vennheide · Source [1]
Boron 0,08 mg/l 1 mg/l
8 %
Mean · Vennheide · Source [1]
Bromate <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Vennheide · Source [1]
Cadmium <0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Mean · Vennheide · Source [1]
Fluoride 0,12 mg/l 1.5 mg/l
8 %
Mean · Vennheide · Source [1]
Indeno(1,2,3-cd)pyrene <0,000005 mg/l
below limit of quantification
 — — Mean · Vennheide · Source [1]
Lead <0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Mean · Vennheide · Source [1]
Microcystin-LR <0,00007 mg/l
below limit of quantification
 — — Mean · Vennheide · Source [1]
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Vennheide · Source [1]
Nitrate 9,56 mg/l 50 mg/l
19 %
Mean · Vennheide · Source [1]
Nitrite <0,02 mg/l
below limit of quantification
 0.5 mg/l
< 4 % *
Mean · Vennheide · Source [1]
Selenium 0,001 mg/l 10 µg/l
10 %
Mean · Vennheide · Source [1]
Tetrachloroethene 0,00013 mg/l — — Mean · Vennheide · Source [1]
Trichloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Vennheide · Source [1]
Uranium 0,0023 mg/l 10 µg/l
23 %
Mean · Vennheide · Source [1]

* 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 (2)

PFAS – Vennheide
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS 0,000005 mg/l — — Mean · Vennheide · Source [1]
Sum of PFAS 0,000018 mg/l — — Mean · Vennheide · Source [1]

Indicator parameters (13)

Indicator parameters – Vennheide
Parameter Value Parametric value Share of the parametric value Reference
Ammonium <0,1 mg/l
below limit of quantification
 0.5 mg/l
< 20 % *
Mean · Vennheide · Source [1]
Chloride 44,9 mg/l 250 mg/l
18 %
Mean · Vennheide · Source [1]
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Vennheide · Source [1]
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Vennheide · Source [1]
Colony count 22 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Vennheide · Source [1]
Colony count 36 °C 0 KBE/100 ml ohne anormale Veränderung — Mean · Vennheide · Source [1]
Odour 0 ohne für den Verbraucher annehmbar — Single value · Vennheide · Source [1]
pH 7,3 pH-Einheiten 6,5–9,5 — Mean · Vennheide · Source [1]
Sodium 28,4 mg/l 200 mg/l
14 %
Mean · Vennheide · Source [1]
Sulphate 84,9 mg/l 250 mg/l
34 %
Mean · Vennheide · Source [1]
Taste 0 ohne für den Verbraucher annehmbar — Single value · Vennheide · Source [1]
Total organic carbon (TOC) 1,9 mg/l ohne anormale Veränderung — Mean · Vennheide · Source [1]
Turbidity 0,12 ohne 1 NTU — Mean · Vennheide · Source [1]

* 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 (9)

Further parameters – Vennheide
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 4,50 mmol/l — — Mean · Vennheide · Source [1]
Base capacity to pH 8.2 0,49 mmol/l — — Mean · Vennheide · Source [1]
Calcite precipitation capacity 7,4 mg/l — — Mean · Vennheide · Source [1]
Calcium 104,9 mg/l — — Mean · Vennheide · Source [1]
Carbonate hardness 12,5 °dH — — Mean · Vennheide · Source [2]
Hardness range (WRMG) 3,01 mmol/l — — Mean · Vennheide · Source [1]
Magnesium 9,4 mg/l — — Mean · Vennheide · Source [1]
Potassium 7,3 mg/l — — Mean · Vennheide · Source [1]
Total hardness 16,9 °dH — — Mean · Vennheide · Source [1]

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.

Sources: [1] https://www.stadtwerke-muenster.de/Stadtwerke/Dokumente/Trinkwasser/Trinkwasseranalytik.pdf · 26.02.2026 · Jahresmittelwerte 2025 · retrieved on 11/07/2026 [2] https://opendata.stadt-muenster.de/dataset/trinkwasseranalyse-der-stadtwerke-m%C3%BCnster · 2025-10-07 · 01.01.2018 bis 31.12.2020 · retrieved on 11/07/2026

Postcodes in this zone: 48143 , 48145 , 48147 , 48149 , 48151 , 48153 , 48155 , 48157 , 48159 , 48161 , 48163 , 48165 , 48167

Kinderhaus

Stadtwerke Münster GmbH

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2020. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

No core values are available for this zone yet.

Show all recorded parameters (3 — most recent value per parameter)

Further parameters (3)

Further parameters – Kinderhaus
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 4,536 mmol/l — — Mean · Kinderhaus
Base capacity to pH 8.2 0,588 mmol/l — — Mean · Kinderhaus
Carbonate hardness 12,7 °dH — — Mean · Kinderhaus

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://opendata.stadt-muenster.de/dataset/trinkwasseranalyse-der-stadtwerke-m%C3%BCnster · 2025-10-07 · 01.01.2018 bis 31.12.2020 · retrieved on 11/07/2026

Postcodes in this zone: 48143 , 48145 , 48147 , 48149 , 48151 , 48153 , 48155 , 48157 , 48159 , 48161 , 48163 , 48165 , 48167

Übergabe Albachten

Stadtwerke Münster GmbH

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2020. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

No core values are available for this zone yet.

Show all recorded parameters (3 — most recent value per parameter)

Further parameters (3)

Further parameters – Übergabe Albachten
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,9083 mmol/l — — Mean · Übergabe Albachten
Base capacity to pH 8.2 0,17 mmol/l — — Mean · Übergabe Albachten
Carbonate hardness 8,15167 °dH — — Mean · Übergabe Albachten

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://opendata.stadt-muenster.de/dataset/trinkwasseranalyse-der-stadtwerke-m%C3%BCnster · 2025-10-07 · 01.01.2018 bis 31.12.2020 · retrieved on 11/07/2026

Postcodes in this zone: 48143 , 48145 , 48147 , 48149 , 48151 , 48153 , 48155 , 48157 , 48159 , 48161 , 48163 , 48165 , 48167

Münster (6232)

Hochzone WVG

Wasserversorgungsgenossenschaft Geuensee

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

Water hardness
19.8 °dH
Hardness range hard
Key values Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 15.75 mg/l 40 mg/l
39 %
Mean · Hochzone WVG
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml — Maximum · Median 0 · Hochzone WVG
Sulphate 9 mg/l — — Mean · Hochzone WVG
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 2.5 KBE/ml 300 1/ml — Mean · Hochzone WVG
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml — Maximum · Median 0 · Hochzone WVG
Intestinal enterococci 0 KBE/100ml 0/100 ml — Maximum · Median 0 · Hochzone WVG

Chemical parameters (1)

Chemical parameters – Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 15.75 mg/l 40 mg/l
39 %
Mean · Hochzone WVG

PFAS (3)

PFAS – Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Perfluorohexane sulfonic acid (PFHxS) 0 µg/l 0.3 µg/l
0 %
Mean · Hochzone WVG
Perfluorooctanesulfonic acid (PFOS) 0 µg/l 0.3 µg/l
0 %
Mean · Hochzone WVG
Perfluorooctanoic acid (PFOA) 0 µg/l 0.5 µg/l
0 %
Mean · Hochzone WVG

Metabolites (2)

Metabolites – Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Chlorothalonil metabolite R417888 0 µg/l 0.1 µg/l
0 %
Mean · Hochzone WVG
Chlorothalonil metabolite R471811 0.0355 µg/l 0.1 µg/l
36 %
Mean · Hochzone WVG

Indicator parameters (3)

Indicator parameters – Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Chloride 5.7 mg/l — — Mean · Hochzone WVG
Sulphate 9 mg/l — — Mean · Hochzone WVG
Temperature 13.7 °C — — Mean · Hochzone WVG

Further parameters (4)

Further parameters – Hochzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Calcium 111 mg/l — — Mean · Hochzone WVG
Hydrogen carbonate 478 mg/l — — Mean · Hochzone WVG
Magnesium 19 mg/l — — Mean · Hochzone WVG
Total hardness 35.4 °fH — — Mean · Hochzone WVG

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://trinkwasser.ch/de/versorger/935/wasserversorgungsgenossenschaft-geuensee/3224/hochzone-wvg · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 6232

Show 2 more supply zones

Niederzone WVG

Wasserversorgungsgenossenschaft Geuensee

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

Water hardness
18.1 °dH
Hardness range hard
Key values Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 28.4 mg/l 40 mg/l
71 %
Mean · Niederzone WVG
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml — Maximum · Median 0 · Niederzone WVG
Sulphate 14 mg/l — — Mean · Niederzone WVG
Show all recorded parameters (17 — most recent value per parameter)

Microbiology (3)

Microbiology – Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 13.2 KBE/ml 300 1/ml — Mean · Niederzone WVG
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml — Maximum · Median 0 · Niederzone WVG
Intestinal enterococci 0 KBE/100ml 0/100 ml — Maximum · Median 0 · Niederzone WVG

Chemical parameters (1)

Chemical parameters – Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 28.4 mg/l 40 mg/l
71 %
Mean · Niederzone WVG

PFAS (3)

PFAS – Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Perfluorohexane sulfonic acid (PFHxS) 0 µg/l 0.3 µg/l
0 %
Mean · Niederzone WVG
Perfluorooctanesulfonic acid (PFOS) 0 µg/l 0.3 µg/l
0 %
Mean · Niederzone WVG
Perfluorooctanoic acid (PFOA) 0 µg/l 0.5 µg/l
0 %
Mean · Niederzone WVG

Metabolites (2)

Metabolites – Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Chlorothalonil metabolite R417888 0.0256 µg/l 0.1 µg/l
26 %
Mean · Niederzone WVG
Chlorothalonil metabolite R471811 0.166 µg/l 0.1 µg/l
166 % Mean above the parametric value
Mean · Niederzone WVG

Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.

Indicator parameters (4)

Indicator parameters – Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Chloride 11.6 mg/l — — Mean · Niederzone WVG
Sulphate 14 mg/l — — Mean · Niederzone WVG
Temperature 17 °C — — Mean · Niederzone WVG
Turbidity 0.495 TE/F — — Mean · Niederzone WVG

Further parameters (4)

Further parameters – Niederzone WVG
Parameter Value Parametric value Share of the parametric value Reference
Calcium 112 mg/l — — Mean · Niederzone WVG
Hydrogen carbonate 340 mg/l — — Mean · Niederzone WVG
Magnesium 11 mg/l — — Mean · Niederzone WVG
Total hardness 32.4 °fH — — Mean · Niederzone WVG

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://trinkwasser.ch/de/versorger/935/wasserversorgungsgenossenschaft-geuensee/3223/niederzone-wvg · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 6232

VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB

Gemeinde Münster

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

Water hardness
8.4 °dH
Hardness range medium
Key values VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,8 mg/L 50 mg/l
4 %
Single value
Lead < 1 µg/L
below limit of quantification
 10 µg/l
< 10 % *
Single value
Escherichia coli (E. coli) 0 KBE / 100ml 0/100 ml — Single value
Sulphate 2,2 mg/L 250 mg/l
0.9 %
Single value
Sodium 0,3 mg/L 200 mg/l
0.2 %
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 (161 — most recent value per parameter)

Microbiology (3)

Microbiology – VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE / 100ml 0/100 ml — Single value
Intestinal enterococci 0 KBE / 100ml 0/100 ml — Single value
Pseudomonas aeruginosa 0 KBE / 100ml 0/100 ml — Single value

Chemical parameters (99)

Chemical parameters – VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
1,1,1-Trichloroethane ‡ mg/L
not determined
 — — Single value
1,2-dichloroethane ‡ mg/L
not determined
 3 µg/l — Single value
Acrylamide ‡ mg/L
not determined
 0.1 µg/l — Single value
Alachlor ‡ µg/L
not determined
 — — Single value
Aldrin ‡ µg/L
not determined
 — — Single value
Antimony ‡ µg/L
not determined
 5 µg/l — Single value
Arsenic ‡ µg/L
not determined
 10 µg/l — Single value
Atrazine ‡ µg/L
not determined
 — — Single value
Azoxystrobin ‡ µg/L
not determined
 — — Single value
Bentazone ‡ µg/L
not determined
 — — Single value
Benzene ‡ mg/L
not determined
 1 µg/l — Single value
Benzo(a)pyrene ‡ mg/L
not determined
 10 ng/l — Single value
Benzo(b)fluoranthene ‡ mg/L
not determined
 — — Single value
Benzo(ghi)perylene ‡ mg/L
not determined
 — — Single value
Benzo(k)fluoranthene ‡ mg/L
not determined
 — — Single value
Bisphenol A ‡ µg/L
not determined
 2.5 µg/l — Single value
Boron ‡ µg/L
not determined
 1 mg/l — Single value
Bromacil ‡ µg/L
not determined
 — — Single value
Bromate ‡ mg/L
not determined
 10 µg/l — Single value
Bromodichloromethane ‡ mg/L
not determined
 — — Single value
Cadmium ‡ µg/L
not determined
 5 µg/l — Single value
Chlorate ‡ mg/L
not determined
 0.25 mg/l — Single value
Chloridazon ‡ µg/L
not determined
 — — Single value
Chlorite ‡ mg/L
not determined
 0.25 mg/l — Single value
Chlorothalonil ‡ µg/L
not determined
 — — Single value
Chromium ‡ µg/L
not determined
 50 µg/l — Single value
cis-1,2-Dichloroethene ‡ mg/L
not determined
 — — Single value
Clopyralid ‡ µg/L
not determined
 — — Single value
Clothianidin ‡ µg/L
not determined
 — — Single value
Copper ‡ µg/L
not determined
 2 mg/l — Single value
Cyanide ‡ mg/L
not determined
 50 µg/l — Single value
Desethylatrazine ‡ µg/L
not determined
 — — Single value
Desethylterbuthylazine ‡ µg/L
not determined
 — — Single value
Desisopropylatrazine ‡ µg/L
not determined
 — — Single value
Dibromoacetic acid ‡ mg/L
not determined
 — — Single value
Dibromochloromethane ‡ mg/L
not determined
 — — Single value
Dicamba ‡ µg/L
not determined
 — — Single value
Dichloroacetic acid ‡ mg/L
not determined
 — — Single value
Dichloromethane ‡ mg/L
not determined
 — — Single value
Dichlorprop ‡ µg/L
not determined
 — — Single value
Dieldrin ‡ µg/L
not determined
 — — Single value
Dimethachlor ‡ µg/L
not determined
 — — Single value
Dimethenamid ‡ µg/L
not determined
 — — Single value
Diuron ‡ µg/L
not determined
 — — Single value
Epichlorohydrin ‡ µg/L
not determined
 0.1 µg/l — Single value
Ethofumesate ‡ µg/L
not determined
 — — Single value
Flufenacet ‡ µg/L
not determined
 — — Single value
Fluoranthene ‡ mg/L
not determined
 — — Single value
Fluoride < 0.5 mg/L
below limit of quantification
 1.5 mg/l
< 33 % *
Single value
Glyphosate ‡ µg/L
not determined
 — — Single value
Haloacetic acids (HAA) ‡ mg/L
not determined
 60 µg/l — Single value
Heptachlor ‡ µg/L
not determined
 — — Single value
Hexazinone ‡ µg/L
not determined
 — — Single value
Imidacloprid ‡ µg/L
not determined
 — — Single value
Indeno(1,2,3-cd)pyrene ‡ mg/L
not determined
 — — Single value
Iodosulfuron-methyl ‡ µg/L
not determined
 — — Single value
Isoproturon ‡ µg/L
not determined
 — — Single value
Lead < 1 µg/L
below limit of quantification
 10 µg/l
< 10 % *
Single value
MCPA ‡ µg/L
not determined
 — — Single value
Mercury ‡ µg/L
not determined
 1 µg/l — Single value
Mesosulfuron-methyl ‡ µg/L
not determined
 — — Single value
Metalaxyl ‡ µg/L
not determined
 — — Single value
Metamitron ‡ µg/L
not determined
 — — Single value
Metazachlor ‡ µg/L
not determined
 — — Single value
Metazachlor acid ‡ µg/L
not determined
 — — Single value
Metazachlor sulfonic acid ‡ µg/L
not determined
 — — Single value
Metolachlor ‡ µg/L
not determined
 — — Single value
Metribuzin ‡ µg/L
not determined
 — — Single value
Metsulfuron-methyl ‡ µg/L
not determined
 — — Single value
Monobromoacetic acid ‡ mg/L
not determined
 — — Single value
Monochloroacetic acid ‡ mg/L
not determined
 — — Single value
Nickel ‡ µg/L
not determined
 20 µg/l — Single value
Nicosulfuron ‡ µg/L
not determined
 — — Single value
Nitrate 1,8 mg/L 50 mg/l
4 %
Single value
Nitrite < 0,01 mg/L
below limit of quantification
 0.1 mg/l
< 10 % *
Single value
Pesticides — Total ‡ µg/L
not determined
 0.5 µg/l — Single value
Pethoxamid ‡ µg/L
not determined
 — — Single value
Propazine ‡ µg/L
not determined
 — — Single value
Propiconazole ‡ µg/L
not determined
 — — Single value
Selenium ‡ µg/L
not determined
 20 µg/l — Single value
Simazine ‡ µg/L
not determined
 — — Single value
Terbuthylazine ‡ µg/L
not determined
 — — Single value
Tetrachloroethene ‡ mg/L
not determined
 — — Single value
Tetrachloromethane ‡ mg/L
not determined
 — — Single value
Thiacloprid ‡ µg/L
not determined
 — — Single value
Thiamethoxam ‡ µg/L
not determined
 — — Single value
Thifensulfuron-methyl ‡ µg/L
not determined
 — — Single value
Tolylfluanid ‡ µg/L
not determined
 — — Single value
trans-1,2-Dichloroethene ‡ mg/L
not determined
 — — Single value
Tribenuron-methyl ‡ µg/L
not determined
 — — Single value
Tribromomethane (bromoform) ‡ mg/L
not determined
 — — Single value
Trichloroacetic acid ‡ mg/L
not determined
 — — Single value
Trichloroethene ‡ mg/L
not determined
 — — Single value
Trichloromethane (chloroform) ‡ mg/L
not determined
 — — Single value
Triclopyr ‡ µg/L
not determined
 — — Single value
Triflusulfuron-methyl ‡ µg/L
not determined
 — — Single value
Tritosulfuron ‡ µg/L
not determined
 — — Single value
Uranium ‡ µg/L
not determined
 15 µg/l — Single value
Vinyl chloride ‡ mg/L
not determined
 0.5 µg/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.

PFAS (20)

PFAS – VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) ‡ µg/L
not determined
 — — Single value
Perfluorobutanoic acid (PFBA) ‡ µg/L
not determined
 — — Single value
Perfluorodecane sulfonic acid (PFDS) ‡ µg/L
not determined
 — — Single value
Perfluorodecanoic acid (PFDA) ‡ µg/L
not determined
 — — Single value
Perfluorododecane sulfonic acid (PFDoDS) ‡ µg/L
not determined
 — — Single value
Perfluorododecanoic acid (PFDoDA) ‡ µg/L
not determined
 — — Single value
Perfluoroheptane sulfonic acid (PFHpS) ‡ µg/L
not determined
 — — Single value
Perfluoroheptanoic acid (PFHpA) ‡ µg/L
not determined
 — — Single value
Perfluorohexane sulfonic acid (PFHxS) ‡ µg/L
not determined
 — — Single value
Perfluorohexanoic acid (PFHxA) ‡ µg/L
not determined
 — — Single value
Perfluorononane sulfonic acid (PFNS) ‡ µg/L
not determined
 — — Single value
Perfluorononanoic acid (PFNA) ‡ µg/L
not determined
 — — Single value
Perfluorooctanesulfonic acid (PFOS) ‡ µg/L
not determined
 — — Single value
Perfluorooctanoic acid (PFOA) ‡ µg/L
not determined
 — — Single value
Perfluoropentanesulfonic acid (PFPeS) ‡ µg/L
not determined
 — — Single value
Perfluoropentanoic acid (PFPeA) ‡ µg/L
not determined
 — — Single value
Perfluorotridecanesulfonic acid (PFTrDS) ‡ µg/L
not determined
 — — Single value
Perfluorotridecanoic acid (PFTrDA) ‡ µg/L
not determined
 — — Single value
Perfluoroundecanesulfonic acid (PFUnDS) ‡ µg/L
not determined
 — — Single value
Perfluoroundecanoic acid (PFUnDA) ‡ µg/L
not determined
 — — Single value

Metabolites (4)

Metabolites – VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
2-Hydroxyatrazine ‡ µg/L
not determined
 — — Single value
Dimethylsulfamide (DMS) ‡ µg/L
not determined
 — — Single value
Flufenacet sulfonic acid M2 ‡ µg/L
not determined
 — — Single value
Methyl-desphenyl-chloridazon ‡ µg/L
not determined
 — — Single value

Indicator parameters (15)

Indicator parameters – VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
Aluminium ‡ µg/L
not determined
 0.2 mg/l — Single value
Ammonium 0,01 mg/L 0.5 mg/l
2 %
Single value
Chloride 0,2 mg/L 200 mg/l
0.1 %
Single value
Clostridium perfringens (including spores) n.a. KBE / 100ml
not detectable
 0/100 ml — Single value
Coliform bacteria 0 KBE / 100ml 0/100 ml — Single value
Colour farblos subjektiv — — Single value
Conductivity (25 °C) 245 in µS/cm 2,500 µS/cm — Single value
Iron < 10 µg/L
below limit of quantification
 0.2 mg/l
< 5 % *
Single value
Manganese < 4 µg/L
below limit of quantification
 50 µg/l
< 8 % *
Single value
Odour geruchlos subjektiv — — Single value
pH 8 6,5–9,5 — Single value
Sodium 0,3 mg/L 200 mg/l
0.2 %
Single value
Sulphate 2,2 mg/L 250 mg/l
0.9 %
Single value
Taste n.a. subjektiv
not detectable
 — — Single value
Turbidity keine subjektiv — — 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 (20)

Further parameters – VZ Münster, Bauhof, Dorf 94, Hahn Herren WC WB
Parameter Value Parametric value Share of the parametric value Reference
1,1-Dichloroethene ‡ mg/L
not determined
 — — Single value
Anthracene ‡ mg/L
not determined
 — — Single value
Benzo(a)anthracene ‡ mg/L
not determined
 — — Single value
Calcium 51,4 mg/L 400 mg/l
13 %
Single value
Carbonate hardness 7,6 ° dH — — Single value
Chrysene ‡ mg/L
not determined
 — — Single value
Ethylbenzene ‡ mg/L
not determined
 — — Single value
Fluorene ‡ mg/L
not determined
 — — Single value
Hydrogen carbonate 165,4 mg/L — — Single value
Magnesium 5,1 mg/L 150 mg/l
3 %
Single value
Naphthalene ‡ mg/L
not determined
 — — Single value
Non-carbonate hardness 0,8 ° dH — — Single value
Phenanthrene ‡ mg/L
not determined
 — — Single value
Phosphate 0,011 mg/L — — Single value
Potassium 0,3 mg/L 50 mg/l
0.6 %
Single value
Pyrene ‡ mg/L
not determined
 — — Single value
Toluene ‡ mg/L
not determined
 — — Single value
Total hardness 8,4 ° dH — — Single value
Xylenes ‡ mg/L
not determined
 — — Single value
Zinc 47,6 µg/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://www.muenster.at/system/web/getDocument.ashx?cts=1773238867&fileid=2839874 · Eingangsdatum 26.09.2025 · retrieved on 14/08/2026

Postcodes in this zone: 6232

Münster (64839)

wp-zvg-dieburg gesamt

ZVG Dieburg

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

Water hardness
12 °dH
Hardness range mittel
Key values wp-zvg-dieburg gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9 mg/l 50 mg/l
18 %
Single value
Lead 0.003 mg/l 10 µg/l
30 %
Single value
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Single value
Sulphate 60.9 mg/l 250 mg/l
24 %
Single value
Sodium 10.7 mg/l 200 mg/l
5 %
Single value
Show all recorded parameters (79 — most recent value per parameter)

Microbiology (2)

Microbiology – wp-zvg-dieburg gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Single value
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Single value

Chemical parameters (49)

Chemical parameters – wp-zvg-dieburg gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane 0.0003 mg/l 3 µg/l
10 %
Single value
Acrylamide 0.0001 mg/l 0.1 µg/l
100 %
Single value
AMPA 3e-05 mg/l — — Single value
Antimony 0.001 mg/l 5 µg/l
20 %
Single value
Arsenic 0.003 mg/l 10 µg/l
30 %
Single value
Atrazine 3e-05 mg/l — — Single value
Bentazone 3e-05 mg/l — — Single value
Benzene 0.0002 mg/l 1 µg/l
20 %
Single value
Benzo(a)pyrene 3e-06 mg/l 10 ng/l
30 %
Single value
Boron 0.05 mg/l 1 mg/l
5 %
Single value
Bromacil 3e-05 mg/l — — Single value
Bromate 0.0025 mg/l 10 µg/l
25 %
Single value
Cadmium 0.0009 mg/l 3 µg/l
30 %
Single value
Carbofuran 3e-05 mg/l — — Single value
Chlorotoluron 3e-05 mg/l — — Single value
Chromium 0.0005 mg/l 25 µg/l
2 %
Single value
Copper 0.01 mg/l 2 mg/l
0.5 %
Single value
Cyanide 0.01 mg/l 50 µg/l
20 %
Single value
Dichlorprop 3e-05 mg/l — — Single value
Dimethoate 3e-05 mg/l — — Single value
Diuron 3e-05 mg/l — — Single value
Epichlorohydrin 0.0001 mg/l 0.1 µg/l
100 %
Single value
Fluoride 0.1 mg/l 1.5 mg/l
7 %
Single value
Glyphosate 3e-05 mg/l — — Single value
Hexazinone 3e-05 mg/l — — Single value
Isoproturon 3e-05 mg/l — — Single value
Lead 0.003 mg/l 10 µg/l
30 %
Single value
Lindane 3e-05 mg/l — — Single value
MCPA 3e-05 mg/l — — Single value
Mecoprop 3e-05 mg/l — — Single value
Mercury 0.0002 mg/l 1 µg/l
20 %
Single value
Metazachlor 3e-05 mg/l — — Single value
Methabenzthiazuron 3e-05 mg/l — — Single value
Metobromuron 3e-05 mg/l — — Single value
Monuron 3e-05 mg/l — — Single value
Nickel 0.006 mg/l 20 µg/l
30 %
Single value
Nitrate 9 mg/l 50 mg/l
18 %
Single value
Nitrite 0.05 mg/l 0.5 mg/l
10 %
Single value
Pesticides — Total 3e-05 mg/l 0.5 µg/l
6 %
Single value
Polycyclic aromatic hydrocarbons 1e-05 mg/l 0.1 µg/l
10 %
Single value
Propazine 3e-05 mg/l — — Single value
Selenium 0.003 mg/l 10 µg/l
30 %
Single value
Simazine 3e-05 mg/l — — Single value
Terbuthylazine 3e-05 mg/l — — Single value
Tetrachloroethene 0.0001 mg/l — — Single value
Trichloroethene 0.0001 mg/l — — Single value
Trihalomethanes — Total 0.0003 mg/l 50 µg/l
0.6 %
Single value
Uranium 0.0005 mg/l 10 µg/l
5 %
Single value
Vinyl chloride 0.0002 mg/l 0.5 µg/l
40 %
Single value

Indicator parameters (19)

Indicator parameters – wp-zvg-dieburg gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0.02 mg/l 0.2 mg/l
10 %
Single value
Ammonium 0.05 mg/l 0.5 mg/l
10 %
Single value
Calcite dissolution capacity 8.2 mg/l 5 mg/l CaCO3 — Single value
Chloride 23.5 mg/l 250 mg/l
9 %
Single value
Coliform bacteria 0 KBE/100 ml 0/100 ml — Single value
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Single value
Colony count 36 °C 1 KBE/ml ohne anormale Veränderung — Single value
Colour 0.1 1/m 0.5 m⁻¹ — Single value
Conductivity (25 °C) 479 µS/cm 2,790 µS/cm — Single value
Iron 0.01 mg/l 0.2 mg/l
5 %
Single value
Manganese 0.01 mg/l 50 µg/l
20 %
Single value
Odour ohne für den Verbraucher annehmbar — Single value
pH 7.4 6,5–9,5 — Single value
Sodium 10.7 mg/l 200 mg/l
5 %
Single value
Sulphate 60.9 mg/l 250 mg/l
24 %
Single value
Taste ohne für den Verbraucher annehmbar — Single value
Temperature 10.4 °C — — Single value
Total organic carbon (TOC) 1.41 mg/l ohne anormale Veränderung — Single value
Turbidity 0.1 TE/F 1 NTU — Single value

Further parameters (9)

Further parameters – wp-zvg-dieburg gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2.83 mmol/l — — Single value
Base capacity to pH 8.2 0.22 mmol/l — — Single value
Calcium 72 mg/l — — Single value
Carbonate hardness 7.8 °dH — — Single value
Hardness range (WRMG) mittel — — Single value
Magnesium 8.3 mg/l — — Single value
Potassium 2.5 mg/l — — Single value
Sum of alkaline earth metals 2.14 mmol/l — — Single value
Total hardness 2.14 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://oeffentlichkeit.gw-manager.com/gebiete/06D74170-B060-4A3F-80B6-B9688A85F70A · 2026-06-11 · 2026-06-11 · retrieved on 27/07/2026

Postcodes in this zone: 64839

Frequently asked questions about drinking water in Münster

How hard is the water in Münster?
Stadtwerke Münster GmbH publishes a total hardness of 11 °dH for the supply zone Bezug (Gelsenwasser AG) (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: 26.02.2026, retrieved on 25/07/2026.
How much nitrate is in the drinking water in Münster?
Stadtwerke Münster GmbH publishes a nitrate value of 11,42 mg/l for the supply zone Bezug (Gelsenwasser AG). The statutory parametric value is 50 mg/l; the measured value represents 23 % of the parametric value. Basis: 26.02.2026, retrieved on 25/07/2026.
Who supplies the drinking water in Münster?
Stadtwerke Münster GmbH. The values shown here come from the supply zone Bezug (Gelsenwasser AG) 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.

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