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Drinking water in 58706

For this postcode the responsible water supplier publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 11 underneath.

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.

Wasserwerk Echthausen

Wasserwerke Westfalen GmbH

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

Water hardness
7.5 °dH
Hardness range weich
Key values Wasserwerk Echthausen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 11,7 mg/l 50 mg/l
23 %
Mean · Wasserwerk Echthausen · Source [1]
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Echthausen · Source [1]
Sulphate 33 mg/l 250 mg/l
13 %
Mean · Wasserwerk Echthausen · Source [1]
Sodium 23 mg/l 200 mg/l
12 %
Mean · Wasserwerk Echthausen · 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 (70 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (26)

Chemical parameters – Wasserwerk Echthausen
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,05 µg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean · Source [2]
Antimony < 1,0 µg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Wasserwerk Echthausen · Source [1]
Arsenic < 0,5 µg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Wasserwerk Echthausen · Source [1]
Benzene <0,05 µg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Source [2]
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean · Source [2]
Bisphenol A <0,015 µg/l
below limit of quantification
 2.5 µg/l
< 0.6 % *
Mean · Source [2]
Boron < 0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Wasserwerk Echthausen · Source [1]
Bromate < 0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Wasserwerk Echthausen · Source [1]
Cadmium < 0,3 µg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Chlorate < 0,00 mg/l
below limit of quantification
 70 µg/l
< 0 % *
Mean · Wasserwerk Echthausen · Source [1]
Chlorite < 0,01 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Echthausen · Source [1]
Chromium < 0,4 µg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Wasserwerk Echthausen · Source [1]
Copper < 5 µg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Wasserwerk Echthausen · Source [1]
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Fluoride 0,07 mg/l 1.5 mg/l
5 %
Mean · Wasserwerk Echthausen · Source [1]
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Mercury < 0,10 µg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Nickel < 2 µg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Nitrate 11,7 mg/l 50 mg/l
23 %
Mean · Wasserwerk Echthausen · Source [1]
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Wasserwerk Echthausen · Source [1]
Pesticides — Total <0,025 µg/l
below limit of quantification
 0.5 µg/l
< 5 % *
Mean · Source [2]
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
 0.1 µg/l
< 5 % *
Mean · Source [2]
Selenium < 1,0 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Tetrachloroethene and Trichloroethene (sum) <0,05 µg/l
below limit of quantification
 10 µg/l
< 0.5 % *
Mean · Source [2]
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
 50 µg/l
< 0.1 % *
Mean · Source [2]
Uranium < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Echthausen · 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.

Indicator parameters (20)

Indicator parameters – Wasserwerk Echthausen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 10 µg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Echthausen · Source [1]
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Wasserwerk Echthausen · Source [1]
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 — Mean · Source [2]
Chloride 37 mg/l 250 mg/l
15 %
Mean · Wasserwerk Echthausen · Source [1]
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Echthausen · Source [1]
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Echthausen · Source [1]
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Echthausen · Source [1]
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Echthausen · Source [1]
Colour < 0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Wasserwerk Echthausen · Source [1]
Conductivity (25 °C) 403 µS/cm 2,790 µS/cm — Mean · Wasserwerk Echthausen · Source [1]
Iron < 0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Echthausen · Source [1]
Manganese < 0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Wasserwerk Echthausen · Source [1]
Odour unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Echthausen · Source [1]
pH 7,86 6,5–9,5 — Mean · Wasserwerk Echthausen · Source [1]
Sodium 23 mg/l 200 mg/l
12 %
Mean · Wasserwerk Echthausen · Source [1]
Sulphate 33 mg/l 250 mg/l
13 %
Mean · Wasserwerk Echthausen · Source [1]
Taste unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Echthausen · Source [1]
Temperature 5,2 °C — — Mean · Wasserwerk Echthausen · Source [1]
Total organic carbon (TOC) 0,9 mg/l ohne anormale Veränderung — Mean · Wasserwerk Echthausen · Source [1]
Turbidity < 0,05 FNU
below limit of quantification
 1 NTU — Mean · Wasserwerk Echthausen · 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.

Radiology (2)

Radiology – Wasserwerk Echthausen
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
 0.1 mSv/a — Mean · Source [2]
Radon-222 <10 Bq/l
below limit of quantification
 100 Bq/l — Mean · Source [2]

Further parameters (20)

Further parameters – Wasserwerk Echthausen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,96 mmol/l — — Mean · Wasserwerk Echthausen · Source [1]
Barium 18 µg/l — — Mean · Wasserwerk Echthausen · Source [1]
Base capacity to pH 8.2 0,05 mmol/l — — Mean · Wasserwerk Echthausen · Source [1]
Bromide < 0,05 mg/l
below limit of quantification
 — — Mean · Wasserwerk Echthausen · Source [1]
Calcium 44 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Carbonate hardness 5,5 °dH — — Mean · Wasserwerk Echthausen · Source [1]
Dissolved organic carbon (DOC) 0,8 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Gadolinium < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Echthausen · Source [1]
Hardness range (WRMG) weich — — Mean · Wasserwerk Echthausen · Source [1]
Lanthanum < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Echthausen · Source [1]
Lithium < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Echthausen · Source [1]
Magnesium 6 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Oxygen 13,1 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Phosphate 0,12 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Potassium 2 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Silicate / silicic acid 1700 µg/l — — Mean · Wasserwerk Echthausen · Source [1]
Strontium 0,17 mg/l — — Mean · Wasserwerk Echthausen · Source [1]
Total hardness 7,5 °dH — — Mean · Wasserwerk Echthausen · Source [1]
Vanadium < 0,5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Echthausen · Source [1]
Zinc < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Echthausen · 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.gelsenwasser.de/twa-gelsenwasser?apikey=edr56zgt54 · Quartals-Mittel 2026/1 · Quartals-Mittel 2026/1 · retrieved on 17/08/2026 [2] https://www.gelsenwasser.de/fileadmin/twa/downloads/www/trinkwasseranalyse_echthausen.pdf · Jahresmittelwert 2025 · retrieved on 25/07/2026
Show 11 more supply zones in this postcode

Wasserwerk Halingen

Wasserwerke Westfalen GmbH

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

Water hardness
8.3 °dH
Hardness range weich
Key values Wasserwerk Halingen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 13,3 mg/l 50 mg/l
27 %
Mean · Wasserwerk Halingen · Source [1]
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Halingen · Source [1]
Sulphate 36 mg/l 250 mg/l
14 %
Mean · Wasserwerk Halingen · Source [1]
Sodium 31 mg/l 200 mg/l
16 %
Mean · Wasserwerk Halingen · 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 (70 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (26)

Chemical parameters – Wasserwerk Halingen
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,05 µg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean · Source [2]
Antimony < 1,0 µg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Wasserwerk Halingen · Source [1]
Arsenic < 0,5 µg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Wasserwerk Halingen · Source [1]
Benzene <0,05 µg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Source [2]
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean · Source [2]
Bisphenol A <0,015 µg/l
below limit of quantification
 2.5 µg/l
< 0.6 % *
Mean · Source [2]
Boron < 0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Wasserwerk Halingen · Source [1]
Bromate < 0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Wasserwerk Halingen · Source [1]
Cadmium < 0,3 µg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Chlorate < 0,00 mg/l
below limit of quantification
 70 µg/l
< 0 % *
Mean · Wasserwerk Halingen · Source [1]
Chlorite < 0,01 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Halingen · Source [1]
Chromium 0,4 µg/l 25 µg/l
2 %
Mean · Wasserwerk Halingen · Source [1]
Copper < 5 µg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Wasserwerk Halingen · Source [1]
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Fluoride 0,07 mg/l 1.5 mg/l
5 %
Mean · Wasserwerk Halingen · Source [1]
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Mercury < 0,10 µg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Nickel < 2 µg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Nitrate 13,3 mg/l 50 mg/l
27 %
Mean · Wasserwerk Halingen · Source [1]
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Wasserwerk Halingen · Source [1]
Pesticides — Total <0,025 µg/l
below limit of quantification
 0.5 µg/l
< 5 % *
Mean · Source [2]
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
 0.1 µg/l
< 5 % *
Mean · Source [2]
Selenium < 1,0 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Tetrachloroethene and Trichloroethene (sum) 0,06 µg/l 10 µg/l
0.6 %
Mean · Source [2]
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
 50 µg/l
< 0.1 % *
Mean · Source [2]
Uranium < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Halingen · 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.

Indicator parameters (20)

Indicator parameters – Wasserwerk Halingen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 10 µg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Halingen · Source [1]
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Wasserwerk Halingen · Source [1]
Calcite dissolution capacity 1 mg/l 5 mg/l CaCO3 — Mean · Source [2]
Chloride 48 mg/l 250 mg/l
19 %
Mean · Wasserwerk Halingen · Source [1]
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Halingen · Source [1]
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Halingen · Source [1]
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Halingen · Source [1]
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Halingen · Source [1]
Colour < 0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Wasserwerk Halingen · Source [1]
Conductivity (25 °C) 459 µS/cm 2,790 µS/cm — Mean · Wasserwerk Halingen · Source [1]
Iron < 0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Halingen · Source [1]
Manganese < 0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Wasserwerk Halingen · Source [1]
Odour unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Halingen · Source [1]
pH 7,84 6,5–9,5 — Mean · Wasserwerk Halingen · Source [1]
Sodium 31 mg/l 200 mg/l
16 %
Mean · Wasserwerk Halingen · Source [1]
Sulphate 36 mg/l 250 mg/l
14 %
Mean · Wasserwerk Halingen · Source [1]
Taste unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Halingen · Source [1]
Temperature 6,1 °C — — Mean · Wasserwerk Halingen · Source [1]
Total organic carbon (TOC) 0,9 mg/l ohne anormale Veränderung — Mean · Wasserwerk Halingen · Source [1]
Turbidity < 0,05 FNU
below limit of quantification
 1 NTU — Mean · Wasserwerk Halingen · 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.

Radiology (2)

Radiology – Wasserwerk Halingen
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
 0.1 mSv/a — Mean · Source [2]
Radon-222 15 Bq/l 100 Bq/l — Mean · Source [2]

Further parameters (20)

Further parameters – Wasserwerk Halingen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,19 mmol/l — — Mean · Wasserwerk Halingen · Source [1]
Barium 22 µg/l — — Mean · Wasserwerk Halingen · Source [1]
Base capacity to pH 8.2 0,07 mmol/l — — Mean · Wasserwerk Halingen · Source [1]
Bromide < 0,05 mg/l
below limit of quantification
 — — Mean · Wasserwerk Halingen · Source [1]
Calcium 49 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Carbonate hardness 6,1 °dH — — Mean · Wasserwerk Halingen · Source [1]
Dissolved organic carbon (DOC) 0,8 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Gadolinium < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Halingen · Source [1]
Hardness range (WRMG) weich — — Mean · Wasserwerk Halingen · Source [1]
Lanthanum < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Halingen · Source [1]
Lithium 5 µg/l — — Mean · Wasserwerk Halingen · Source [1]
Magnesium 6,3 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Oxygen 11,1 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Phosphate 0,15 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Potassium 3 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Silicate / silicic acid 2100 µg/l — — Mean · Wasserwerk Halingen · Source [1]
Strontium 0,17 mg/l — — Mean · Wasserwerk Halingen · Source [1]
Total hardness 8,3 °dH — — Mean · Wasserwerk Halingen · Source [1]
Vanadium < 0,5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Halingen · Source [1]
Zinc < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Halingen · 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.gelsenwasser.de/twa-gelsenwasser?apikey=edr56zgt54 · Quartals-Mittel 2026/1 · Quartals-Mittel 2026/1 · retrieved on 17/08/2026 [2] https://www.gelsenwasser.de/fileadmin/twa/downloads/www/trinkwasseranalyse_halingen_01.pdf · 2025 · retrieved on 25/07/2026

Wasserwerk Westhofen 1

Wasserwerke Westfalen GmbH

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

Water hardness
8.2 °dH
Hardness range weich
Key values Wasserwerk Westhofen 1
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 13,5 mg/l 50 mg/l
27 %
Mean · Wasserwerk Westhofen 1
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Westhofen 1
Sulphate 38 mg/l 250 mg/l
15 %
Mean · Wasserwerk Westhofen 1
Sodium 29 mg/l 200 mg/l
14 %
Mean · Wasserwerk Westhofen 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 (59 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (18)

Chemical parameters – Wasserwerk Westhofen 1
Parameter Value Parametric value Share of the parametric value Reference
Antimony < 1,0 µg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Wasserwerk Westhofen 1
Arsenic < 0,5 µg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Wasserwerk Westhofen 1
Boron < 0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Wasserwerk Westhofen 1
Bromate < 0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Wasserwerk Westhofen 1
Cadmium < 0,3 µg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Chlorate < 0,00 mg/l
below limit of quantification
 70 µg/l
< 0 % *
Mean · Wasserwerk Westhofen 1
Chlorite < 0,01 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Westhofen 1
Chromium < 0,4 µg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Wasserwerk Westhofen 1
Copper < 5 µg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Wasserwerk Westhofen 1
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Mean · Wasserwerk Westhofen 1
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Mercury < 0,10 µg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Nickel < 2 µg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Nitrate 13,5 mg/l 50 mg/l
27 %
Mean · Wasserwerk Westhofen 1
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Wasserwerk Westhofen 1
Selenium < 1,0 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Uranium < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Westhofen 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.

Indicator parameters (19)

Indicator parameters – Wasserwerk Westhofen 1
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 10 µg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Westhofen 1
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Wasserwerk Westhofen 1
Chloride 48 mg/l 250 mg/l
19 %
Mean · Wasserwerk Westhofen 1
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Westhofen 1
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Westhofen 1
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Westhofen 1
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Westhofen 1
Colour < 0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Wasserwerk Westhofen 1
Conductivity (25 °C) 456 µS/cm 2,790 µS/cm — Mean · Wasserwerk Westhofen 1
Iron < 0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Westhofen 1
Manganese < 0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Wasserwerk Westhofen 1
Odour unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Westhofen 1
pH 7,9 6,5–9,5 — Mean · Wasserwerk Westhofen 1
Sodium 29 mg/l 200 mg/l
14 %
Mean · Wasserwerk Westhofen 1
Sulphate 38 mg/l 250 mg/l
15 %
Mean · Wasserwerk Westhofen 1
Taste unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Westhofen 1
Temperature 5,9 °C — — Mean · Wasserwerk Westhofen 1
Total organic carbon (TOC) 1 mg/l ohne anormale Veränderung — Mean · Wasserwerk Westhofen 1
Turbidity < 0,05 FNU
below limit of quantification
 1 NTU — Mean · Wasserwerk Westhofen 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 (20)

Further parameters – Wasserwerk Westhofen 1
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,07 mmol/l — — Mean · Wasserwerk Westhofen 1
Barium 24 µg/l — — Mean · Wasserwerk Westhofen 1
Base capacity to pH 8.2 0,04 mmol/l — — Mean · Wasserwerk Westhofen 1
Bromide < 0,05 mg/l
below limit of quantification
 — — Mean · Wasserwerk Westhofen 1
Calcium 48 mg/l — — Mean · Wasserwerk Westhofen 1
Carbonate hardness 5,8 °dH — — Mean · Wasserwerk Westhofen 1
Dissolved organic carbon (DOC) 1,1 mg/l — — Mean · Wasserwerk Westhofen 1
Gadolinium < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Westhofen 1
Hardness range (WRMG) weich — — Mean · Wasserwerk Westhofen 1
Lanthanum < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Westhofen 1
Lithium 5 µg/l — — Mean · Wasserwerk Westhofen 1
Magnesium 6,6 mg/l — — Mean · Wasserwerk Westhofen 1
Oxygen 13,2 mg/l — — Mean · Wasserwerk Westhofen 1
Phosphate 0,15 mg/l — — Mean · Wasserwerk Westhofen 1
Potassium 3 mg/l — — Mean · Wasserwerk Westhofen 1
Silicate / silicic acid 2200 µg/l — — Mean · Wasserwerk Westhofen 1
Strontium 0,16 mg/l — — Mean · Wasserwerk Westhofen 1
Total hardness 8,2 °dH — — Mean · Wasserwerk Westhofen 1
Vanadium < 0,5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Westhofen 1
Zinc < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Westhofen 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.

Source: https://www.gelsenwasser.de/twa-gelsenwasser?apikey=edr56zgt54 · Quartals-Mittel 2026/1 · Quartals-Mittel 2026/1 · retrieved on 17/08/2026

Wasserwerk Witten

Wasserwerke Westfalen GmbH

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

Water hardness
7 °dH
Hardness range weich
Key values Wasserwerk Witten
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 12,7 mg/l 50 mg/l
25 %
Mean · Wasserwerk Witten
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Witten
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Witten
Sulphate 32 mg/l 250 mg/l
13 %
Mean · Wasserwerk Witten
Sodium 29 mg/l 200 mg/l
14 %
Mean · Wasserwerk Witten

* 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 (59 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (18)

Chemical parameters – Wasserwerk Witten
Parameter Value Parametric value Share of the parametric value Reference
Antimony < 1,0 µg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Wasserwerk Witten
Arsenic < 0,5 µg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Wasserwerk Witten
Boron < 0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Wasserwerk Witten
Bromate < 0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Wasserwerk Witten
Cadmium < 0,3 µg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Wasserwerk Witten
Chlorate < 0,00 mg/l
below limit of quantification
 70 µg/l
< 0 % *
Mean · Wasserwerk Witten
Chlorite < 0,01 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Witten
Chromium < 0,4 µg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Wasserwerk Witten
Copper < 5 µg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Wasserwerk Witten
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Wasserwerk Witten
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Mean · Wasserwerk Witten
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Witten
Mercury < 0,10 µg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Wasserwerk Witten
Nickel < 2 µg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Wasserwerk Witten
Nitrate 12,7 mg/l 50 mg/l
25 %
Mean · Wasserwerk Witten
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Wasserwerk Witten
Selenium < 1,0 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Witten
Uranium < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Witten

* 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 (19)

Indicator parameters – Wasserwerk Witten
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 10 µg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Witten
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Wasserwerk Witten
Chloride 50 mg/l 250 mg/l
20 %
Mean · Wasserwerk Witten
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Witten
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Witten
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Witten
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Witten
Colour < 0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Wasserwerk Witten
Conductivity (25 °C) 382 µS/cm 2,790 µS/cm — Mean · Wasserwerk Witten
Iron < 0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Witten
Manganese < 0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Wasserwerk Witten
Odour unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Witten
pH 7,9 6,5–9,5 — Mean · Wasserwerk Witten
Sodium 29 mg/l 200 mg/l
14 %
Mean · Wasserwerk Witten
Sulphate 32 mg/l 250 mg/l
13 %
Mean · Wasserwerk Witten
Taste unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Witten
Temperature 6,6 °C — — Mean · Wasserwerk Witten
Total organic carbon (TOC) 0,9 mg/l ohne anormale Veränderung — Mean · Wasserwerk Witten
Turbidity < 0,05 FNU
below limit of quantification
 1 NTU — Mean · Wasserwerk Witten

* 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 – Wasserwerk Witten
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,66 mmol/l — — Mean · Wasserwerk Witten
Barium 23 µg/l — — Mean · Wasserwerk Witten
Base capacity to pH 8.2 0,04 mmol/l — — Mean · Wasserwerk Witten
Bromide < 0,05 mg/l
below limit of quantification
 — — Mean · Wasserwerk Witten
Calcium 39 mg/l — — Mean · Wasserwerk Witten
Carbonate hardness 4,7 °dH — — Mean · Wasserwerk Witten
Dissolved organic carbon (DOC) 0,8 mg/l — — Mean · Wasserwerk Witten
Gadolinium < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Witten
Hardness range (WRMG) weich — — Mean · Wasserwerk Witten
Lanthanum < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Witten
Lithium < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Witten
Magnesium 6,8 mg/l — — Mean · Wasserwerk Witten
Oxygen 13,7 mg/l — — Mean · Wasserwerk Witten
Phosphate 0,15 mg/l — — Mean · Wasserwerk Witten
Potassium 3 mg/l — — Mean · Wasserwerk Witten
Silicate / silicic acid 2100 µg/l — — Mean · Wasserwerk Witten
Strontium 0,12 mg/l — — Mean · Wasserwerk Witten
Total hardness 7 °dH — — Mean · Wasserwerk Witten
Vanadium < 0,5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Witten
Zinc < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Witten

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.gelsenwasser.de/twa-gelsenwasser?apikey=edr56zgt54 · Quartals-Mittel 2026/1 · Quartals-Mittel 2026/1 · retrieved on 17/08/2026

Wasserwerk Hengsen

Wasserwerke Westfalen GmbH

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

Water hardness
8.5 °dH
Hardness range mittel
Key values Wasserwerk Hengsen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 13,9 mg/l 50 mg/l
28 %
Mean · Wasserwerk Hengsen
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Hengsen
Sulphate 37 mg/l 250 mg/l
15 %
Mean · Wasserwerk Hengsen
Sodium 28 mg/l 200 mg/l
14 %
Mean · Wasserwerk Hengsen

* 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 (59 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (18)

Chemical parameters – Wasserwerk Hengsen
Parameter Value Parametric value Share of the parametric value Reference
Antimony < 1,0 µg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Wasserwerk Hengsen
Arsenic < 0,5 µg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Wasserwerk Hengsen
Boron < 0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Wasserwerk Hengsen
Bromate < 0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Wasserwerk Hengsen
Cadmium < 0,3 µg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Chlorate < 0,00 mg/l
below limit of quantification
 70 µg/l
< 0 % *
Mean · Wasserwerk Hengsen
Chlorite < 0,01 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Hengsen
Chromium < 0,4 µg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Wasserwerk Hengsen
Copper < 5 µg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Wasserwerk Hengsen
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Mean · Wasserwerk Hengsen
Lead < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Mercury < 0,10 µg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Nickel < 2 µg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Nitrate 13,9 mg/l 50 mg/l
28 %
Mean · Wasserwerk Hengsen
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Wasserwerk Hengsen
Selenium < 1,0 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Hengsen
Uranium < 1 µg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Wasserwerk Hengsen

* 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 (19)

Indicator parameters – Wasserwerk Hengsen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 10 µg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Hengsen
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Wasserwerk Hengsen
Chloride 47 mg/l 250 mg/l
19 %
Mean · Wasserwerk Hengsen
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Hengsen
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean · Wasserwerk Hengsen
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Hengsen
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Wasserwerk Hengsen
Colour < 0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Wasserwerk Hengsen
Conductivity (25 °C) 455 µS/cm 2,790 µS/cm — Mean · Wasserwerk Hengsen
Iron < 0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Wasserwerk Hengsen
Manganese < 0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Wasserwerk Hengsen
Odour unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Hengsen
pH 7,96 6,5–9,5 — Mean · Wasserwerk Hengsen
Sodium 28 mg/l 200 mg/l
14 %
Mean · Wasserwerk Hengsen
Sulphate 37 mg/l 250 mg/l
15 %
Mean · Wasserwerk Hengsen
Taste unauffällig für den Verbraucher annehmbar — Mean · Wasserwerk Hengsen
Temperature 6,6 °C — — Mean · Wasserwerk Hengsen
Total organic carbon (TOC) 0,9 mg/l ohne anormale Veränderung — Mean · Wasserwerk Hengsen
Turbidity < 0,05 FNU
below limit of quantification
 1 NTU — Mean · Wasserwerk Hengsen

* 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 – Wasserwerk Hengsen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,13 mmol/l — — Mean · Wasserwerk Hengsen
Barium 24 µg/l — — Mean · Wasserwerk Hengsen
Base capacity to pH 8.2 0,05 mmol/l — — Mean · Wasserwerk Hengsen
Bromide < 0,05 mg/l
below limit of quantification
 — — Mean · Wasserwerk Hengsen
Calcium 50 mg/l — — Mean · Wasserwerk Hengsen
Carbonate hardness 6 °dH — — Mean · Wasserwerk Hengsen
Dissolved organic carbon (DOC) 0,9 mg/l — — Mean · Wasserwerk Hengsen
Gadolinium < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Hengsen
Hardness range (WRMG) mittel — — Mean · Wasserwerk Hengsen
Lanthanum < 0,1 µg/l
below limit of quantification
 — — Mean · Wasserwerk Hengsen
Lithium 5 µg/l — — Mean · Wasserwerk Hengsen
Magnesium 6,5 mg/l — — Mean · Wasserwerk Hengsen
Oxygen 12,8 mg/l — — Mean · Wasserwerk Hengsen
Phosphate 0,12 mg/l — — Mean · Wasserwerk Hengsen
Potassium 3 mg/l — — Mean · Wasserwerk Hengsen
Silicate / silicic acid 2300 µg/l — — Mean · Wasserwerk Hengsen
Strontium 0,17 mg/l — — Mean · Wasserwerk Hengsen
Total hardness 8,5 °dH — — Mean · Wasserwerk Hengsen
Vanadium < 0,5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Hengsen
Zinc < 5 µg/l
below limit of quantification
 — — Mean · Wasserwerk Hengsen

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.gelsenwasser.de/twa-gelsenwasser?apikey=edr56zgt54 · Quartals-Mittel 2026/1 · Quartals-Mittel 2026/1 · retrieved on 17/08/2026

Versorgungsgebiet ~80% Talsperrenwasser / ~20% Grundwasser (außer Sankt Augustin-Birlinghoven)

Wasserversorgungs-GmbH Sankt Augustin (WVG)

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

Key values Versorgungsgebiet ~80% Talsperrenwasser / ~20% Grundwasser (außer Sankt Augustin-Birlinghoven)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 10 ± 1 mg/l 50 mg/l — Mean
Lead < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Sulphate 25 ± 0,6 mg/l 250 mg/l — Mean
Sodium 10,8 ± 1,0 mg/l 200 mg/l — Mean

* 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 (44 — most recent value per parameter)

Microbiology (1)

Microbiology – Versorgungsgebiet ~80% Talsperrenwasser / ~20% Grundwasser (außer Sankt Augustin-Birlinghoven)
Parameter Value Parametric value Share of the parametric value Reference
Intestinal enterococci 0 /100ml 0/100 ml — Mean

Chemical parameters (20)

Chemical parameters – Versorgungsgebiet ~80% Talsperrenwasser / ~20% Grundwasser (außer Sankt Augustin-Birlinghoven)
Parameter Value Parametric value Share of the parametric value Reference
Acrylamide < 0,00003 mg/l
below limit of quantification
 0.1 µg/l
< 30 % *
Mean
Antimony < 0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Benzene < 0,0005 mg/l
below limit of quantification
 1 µg/l
< 50 % *
Mean
Benzo(a)pyrene < 0,000005 mg/l
below limit of quantification
 10 ng/l
< 50 % *
Mean
Bisphenol A < 0,0005 mg/l
below limit of quantification
 2.5 µg/l
< 20 % *
Mean
Bromate < 0,003 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean
Cadmium < 0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
Chlorite 0,12 ± 0,03 mg/l 0.2 mg/l — Mean
Copper < 0,010 mg/l
below limit of quantification
 2 mg/l
< 0.5 % *
Mean
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean
Fluoride < 0,1 mg/l
below limit of quantification
 1.5 mg/l
< 7 % *
Mean
Lead < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Mercury < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel < 0,005 mg/l
below limit of quantification
 20 µg/l
< 25 % *
Mean
Nitrate 10 ± 1 mg/l 50 mg/l — Mean
Nitrite < 0,01 mg/l
below limit of quantification
 0.5 mg/l
< 2 % *
Mean
Selenium < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Trihalomethanes — Total 0 x) mg/l 50 µg/l — Mean
Uranium < 0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean

* 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 (16)

Indicator parameters – Versorgungsgebiet ~80% Talsperrenwasser / ~20% Grundwasser (außer Sankt Augustin-Birlinghoven)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,005 mg/l
below limit of quantification
 0.2 mg/l
< 3 % *
Mean
Ammonium < 0,01 mg/l
below limit of quantification
 0.5 mg/l
< 2 % *
Mean
Chloride 20 ± 2 mg/l 250 mg/l — Mean
Colony count 22 °C 0 - 2 /1 ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 - 1 /1 ml ohne anormale Veränderung — Mean
Colour 0,02 ± 0,01 m-1 0.5 m⁻¹ — Mean
Conductivity (25 °C) 24 ± 2 mS/m 2,790 µS/cm — Mean
Iron < 0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Manganese < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean
Odour ohne für den Verbraucher annehmbar — Single value
pH 8,2 ± 0,1 6,5–9,5 — Mean
Sodium 10,8 ± 1,0 mg/l 200 mg/l — Mean
Sulphate 25 ± 0,6 mg/l 250 mg/l — Mean
Taste erfüllt für den Verbraucher annehmbar — Single value
Temperature 8,8 ± 2,0 °C — — Mean
Turbidity < 0,1 FNU
below limit of quantification
 1 NTU — Mean

* 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 (7)

Further parameters – Versorgungsgebiet ~80% Talsperrenwasser / ~20% Grundwasser (außer Sankt Augustin-Birlinghoven)
Parameter Value Parametric value Share of the parametric value Reference
Calcium 25,3 ± 1,5 mg/l — — Mean
Carbonate hardness 2,7 ± 0,4 °dH — — Mean
Magnesium 5,2 ± 0,3 mg/l — — Mean
Phosphate < 0,01 mg/l
below limit of quantification
 — — Mean
Potassium 2,1 ± 0,1 mg/l — — Mean
Silicate / silicic acid 2,7 ± 0,3 mg/l — — Mean
Total hardness 0,85 ± 0,05 mmol/l — — Mean

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.wvg-sanktaugustin.de/wvg-wasseranalyse-2026.pdfx · Januar 2026 · Januar bis Dezember 2025 · retrieved on 13/07/2026

Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)

Wasserwerke Westfalen GmbH

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

Water hardness
8.2 °dH
Hardness range weich
Key values Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 12,1 mg/l 50 mg/l
24 %
Mean
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean
Sulphate 35 mg/l 250 mg/l
14 %
Mean
Sodium 24 mg/l 200 mg/l
12 %
Mean

* 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 (59 — most recent value per parameter)

Microbiology (2)

Microbiology – Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Mean

Chemical parameters (26)

Chemical parameters – Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,05 µg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Benzene <0,05 µg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean
Bisphenol A <0,015 µg/l
below limit of quantification
 2.5 µg/l
< 0.6 % *
Mean
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromate <0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean
Cadmium <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
Chlorate <0,003 mg/l
below limit of quantification
 70 µg/l
< 4 % *
Mean
Chlorite <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Chromium <0,0004 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean
Copper <0,005 mg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean
Fluoride 0,09 mg/l 1.5 mg/l
6 %
Mean
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Mercury <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean
Nitrate 12,1 mg/l 50 mg/l
24 %
Mean
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean
Pesticides — Total <0,025 µg/l
below limit of quantification
 0.5 µg/l
< 5 % *
Mean
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
 0.1 µg/l
< 5 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0,05 µg/l
below limit of quantification
 10 µg/l
< 0.5 % *
Mean
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
 50 µg/l
< 0.1 % *
Mean
Uranium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean

* 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 (18)

Indicator parameters – Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 — Mean
Chloride 36 mg/l 250 mg/l
14 %
Mean
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean
Colour <0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean
Conductivity (25 °C) 421 µS/cm 2,790 µS/cm — Mean
Iron <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Manganese <0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean
pH 7,91 6,5–9,5 — Mean
Sodium 24 mg/l 200 mg/l
12 %
Mean
Sulphate 35 mg/l 250 mg/l
14 %
Mean
Temperature 13 °C — — Mean
Total organic carbon (TOC) 0,7 mg/l ohne anormale Veränderung — Mean
Turbidity <0,05 FNU
below limit of quantification
 1 NTU — Mean

* 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.

Radiology (2)

Radiology – Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
 0.1 mSv/a — Mean
Radon-222 <10 Bq/l
below limit of quantification
 100 Bq/l — Mean

Further parameters (11)

Further parameters – Wasserwerk Hengsen (Pumpwerk Hengsen, 00-0260)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,21 mmol/l — — Mean
Base capacity to pH 8.2 0,05 mmol/l — — Mean
Calcium 49 mg/l — — Mean
Carbonate hardness 6,2 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 6,2 mg/l — — Mean
Oxygen 10,8 mg/l — — Mean
Phosphate 0,14 mg/l — — Mean
Potassium 3,2 mg/l — — Mean
Silicate / silicic acid 5,9 mg/l — — Mean
Total hardness 8,2 °dH — — Mean

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.gelsenwasser.de/fileadmin/twa/downloads/www/trinkwasseranalyse_hengsen.pdf · 2025 · retrieved on 25/07/2026

Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)

Wasserwerke Westfalen GmbH

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

Water hardness
8.1 °dH
Hardness range weich
Key values Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 11,2 mg/l 50 mg/l
22 %
Mean
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean
Sulphate 36 mg/l 250 mg/l
14 %
Mean
Sodium 26 mg/l 200 mg/l
13 %
Mean

* 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 (59 — most recent value per parameter)

Microbiology (2)

Microbiology – Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean
Intestinal enterococci 0 KBE/100 ml 0/100 ml — Mean

Chemical parameters (26)

Chemical parameters – Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,05 µg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Benzene <0,05 µg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean
Bisphenol A <0,015 µg/l
below limit of quantification
 2.5 µg/l
< 0.6 % *
Mean
Boron 0,05 mg/l 1 mg/l
5 %
Mean
Bromate <0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean
Cadmium <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
Chlorate <0,003 mg/l
below limit of quantification
 70 µg/l
< 4 % *
Mean
Chlorite <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Chromium 0,0004 mg/l 25 µg/l
2 %
Mean
Copper <0,005 mg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean
Fluoride 0,09 mg/l 1.5 mg/l
6 %
Mean
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Mercury <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean
Nitrate 11,2 mg/l 50 mg/l
22 %
Mean
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean
Pesticides — Total <0,025 µg/l
below limit of quantification
 0.5 µg/l
< 5 % *
Mean
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
 0.1 µg/l
< 5 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0,05 µg/l
below limit of quantification
 10 µg/l
< 0.5 % *
Mean
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
 50 µg/l
< 0.1 % *
Mean
Uranium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean

* 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 (18)

Indicator parameters – Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 — Mean
Chloride 39 mg/l 250 mg/l
16 %
Mean
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean
Colour <0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean
Conductivity (25 °C) 429 µS/cm 2,790 µS/cm — Mean
Iron <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Manganese <0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean
pH 7,88 6,5–9,5 — Mean
Sodium 26 mg/l 200 mg/l
13 %
Mean
Sulphate 36 mg/l 250 mg/l
14 %
Mean
Temperature 13,3 °C — — Mean
Total organic carbon (TOC) 0,8 mg/l ohne anormale Veränderung — Mean
Turbidity <0,05 FNU
below limit of quantification
 1 NTU — Mean

* 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.

Radiology (2)

Radiology – Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
 0.1 mSv/a — Mean
Radon-222 <10 Bq/l
below limit of quantification
 100 Bq/l — Mean

Further parameters (11)

Further parameters – Wasserwerk Westhofen 1 / Pumpwerk Westhofen 1 (00-0280)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,2 mmol/l — — Mean
Base capacity to pH 8.2 0,06 mmol/l — — Mean
Calcium 47 mg/l — — Mean
Carbonate hardness 6,2 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 6,4 mg/l — — Mean
Oxygen 11,1 mg/l — — Mean
Phosphate 0,17 mg/l — — Mean
Potassium 3,3 mg/l — — Mean
Silicate / silicic acid 5,4 mg/l — — Mean
Total hardness 8,1 °dH — — Mean

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.gelsenwasser.de/fileadmin/twa/downloads/www/trinkwasseranalyse_westhoven.pdf · 2025 · retrieved on 25/07/2026

Wasserwerk Witten, Wasserwerke Westfalen GmbH

Wasserwerke Westfalen GmbH

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

Water hardness
Hardness range 1,30
Key values Wasserwerk Witten, Wasserwerke Westfalen GmbH
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 11 mg/l 50 mg/l
22 %
Median
Sulphate 35 mg/l 250 mg/l
14 %
Median
Sodium 24 mg/l 200 mg/l
12 %
Median
Show all recorded parameters (17 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Wasserwerk Witten, Wasserwerke Westfalen GmbH
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 11 mg/l 50 mg/l
22 %
Median

Indicator parameters (8)

Indicator parameters – Wasserwerk Witten, Wasserwerke Westfalen GmbH
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 0,1 mg/l 5 mg/l CaCO3 — Median
Chloride 38 mg/l 250 mg/l
15 %
Median
Conductivity (25 °C) 404 µS/cm 2,790 µS/cm — Median
pH 7,92 6,5–9,5 — Median
Sodium 24 mg/l 200 mg/l
12 %
Median
Sulphate 35 mg/l 250 mg/l
14 %
Median
Temperature 14,4 °C — — Median
Total organic carbon (TOC) 0,8 mg/l ohne anormale Veränderung — Median

Further parameters (8)

Further parameters – Wasserwerk Witten, Wasserwerke Westfalen GmbH
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,94 mmol/l — — Median
Base capacity to pH 8.2 0,04 mmol/l — — Median
Calcium 41 mg/l — — Median
Hardness range (WRMG) 1,30 mmol/l — — Median
Magnesium 6,8 mg/l — — Median
Oxygen 11,2 mg/l — — Median
Potassium 3,8 mg/l — — Median
Silicate / silicic acid 2,3 mg/l — — Median

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.gelsenwasser.de/fileadmin/Gelsenwasser/80_footer/8.1-tw_parameter/witten_inst.pdf · Median 2025 · retrieved on 13/07/2026

Wasserwerk Villigst

Wasserwerke Westfalen 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 31/12/2024. 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.

Water hardness
7.7 °dH
Hardness range weich
Key values Wasserwerk Villigst
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 13,3 mg/l 50 mg/l
27 %
Mean
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml — Mean
Sulphate 33 mg/l 250 mg/l
13 %
Mean
Sodium 29 mg/l 200 mg/l
14 %
Mean

* 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 (55 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (24)

Chemical parameters – Wasserwerk Villigst
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,05 µg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Benzene <0,05 µg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean
Bisphenol A <0,005 µg/l
below limit of quantification
 2.5 µg/l
< 0.2 % *
Mean
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromate <0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean
Cadmium <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
Chromium 0,0004 mg/l 25 µg/l
2 %
Mean
Copper <0,005 mg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Mean
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Mercury <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean
Nitrate 13,3 mg/l 50 mg/l
27 %
Mean
Nitrite <0,01 mg/l
below limit of quantification
 0.5 mg/l
< 2 % *
Mean
Pesticides — Total <0,025 µg/l
below limit of quantification
 0.5 µg/l
< 5 % *
Mean
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
 0.1 µg/l
< 5 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Tetrachloroethene and Trichloroethene (sum) 0,1 µg/l 10 µg/l
1 %
Mean
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
 50 µg/l
< 0.1 % *
Mean
Uranium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean

* 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 (18)

Indicator parameters – Wasserwerk Villigst
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean
Calcite dissolution capacity 1 mg/l 5 mg/l CaCO3 — Mean
Chloride 25 mg/l 250 mg/l
10 %
Mean
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml — Mean
Coliform bacteria 0 KBE/100 ml 0/100 ml — Mean
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean
Colour <0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean
Conductivity (25 °C) 411 µS/cm 2,790 µS/cm — Mean
Iron <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean
Manganese <0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean
pH 8,03 6,5–9,5 — Mean
Sodium 29 mg/l 200 mg/l
14 %
Mean
Sulphate 33 mg/l 250 mg/l
13 %
Mean
Temperature 11,5 °C — — Mean
Total organic carbon (TOC) 0,9 mg/l ohne anormale Veränderung — Mean
Turbidity <0,05 FNU
below limit of quantification
 1 NTU — Mean

* 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 (11)

Further parameters – Wasserwerk Villigst
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,60 mmol/l — — Mean
Base capacity to pH 8.2 0,06 mmol/l — — Mean
Calcium 45 mg/l — — Mean
Carbonate hardness 7,3 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 6,0 mg/l — — Mean
Oxygen 4,0 mg/l — — Mean
Phosphate 0,21 mg/l — — Mean
Potassium 3,1 mg/l — — Mean
Silicate / silicic acid 7,2 mg/l — — Mean
Total hardness 7,7 °dH — — Mean

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.gelsenwasser.de/fileadmin/twa/downloads/www/trinkwasseranalyse_villigst.pdf · Jahresmittelwert 2024 · retrieved on 25/07/2026

Wasserwerk Ruhrtal

Stadtwerke Menden

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 31/12/2024. 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.

Water hardness
7.2 °dH
Hardness range weich
Key values Wasserwerk Ruhrtal
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 15 mg/l 50 mg/l
30 %
Mean · Wasserwerk Ruhrtal
Sulphate 39 mg/l 250 mg/l
16 %
Mean · Wasserwerk Ruhrtal
Sodium 18,1 mg/l 200 mg/l
9 %
Mean · Wasserwerk Ruhrtal
Show all recorded parameters (22 — most recent value per parameter)

Chemical parameters (4)

Chemical parameters – Wasserwerk Ruhrtal
Parameter Value Parametric value Share of the parametric value Reference
Cyanide n.n. mg/l
not detectable
 50 µg/l — Mean · Wasserwerk Ruhrtal
Fluoride 0,07 mg/l 1.5 mg/l
5 %
Single value · Wasserwerk Ruhrtal
Nitrate 15 mg/l 50 mg/l
30 %
Mean · Wasserwerk Ruhrtal
Nitrite n.n. mg/l
not detectable
 0.5 mg/l — Mean · Wasserwerk Ruhrtal

Indicator parameters (12)

Indicator parameters – Wasserwerk Ruhrtal
Parameter Value Parametric value Share of the parametric value Reference
Ammonium 0,04 mg/l 0.5 mg/l
8 %
Mean · Wasserwerk Ruhrtal
Calcite dissolution capacity eingehalten mg/l 5 mg/l CaCO3 — Mean · Wasserwerk Ruhrtal
Chloride 24,3 mg/l 250 mg/l
10 %
Mean · Wasserwerk Ruhrtal
Colour 0,1 m⁻¹ 0.5 m⁻¹ — Mean · Wasserwerk Ruhrtal
Iron n.n. mg/l
not detectable
 0.2 mg/l — Mean · Wasserwerk Ruhrtal
Manganese n.n. mg/l
not detectable
 50 µg/l — Mean · Wasserwerk Ruhrtal
pH 7,95 6,5–9,5 — Mean · Wasserwerk Ruhrtal
Sodium 18,1 mg/l 200 mg/l
9 %
Mean · Wasserwerk Ruhrtal
Sulphate 39 mg/l 250 mg/l
16 %
Mean · Wasserwerk Ruhrtal
Temperature 13,5 °C — — Mean · Wasserwerk Ruhrtal
Total organic carbon (TOC) 0,7 mg/l ohne anormale Veränderung — Mean · Wasserwerk Ruhrtal
Turbidity 0,05 NTU 1 NTU — Mean · Wasserwerk Ruhrtal

Further parameters (6)

Further parameters – Wasserwerk Ruhrtal
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,05 mmol/l — — Mean · Wasserwerk Ruhrtal
Calcium 42,2 mg/l — — Mean · Wasserwerk Ruhrtal
Hardness range (WRMG) weich — — Mean · Wasserwerk Ruhrtal
Magnesium 5,6 mg/l — — Mean · Wasserwerk Ruhrtal
Potassium 2,5 mg/l — — Mean · Wasserwerk Ruhrtal
Total hardness 7,2 ⁰dH — — Mean · Wasserwerk Ruhrtal

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-menden.de/produkte-services/energie-wasser/wasser/wasserqualitaet.html · Analyse 2024 (Wasserwerk Ruhrtal, DIN 50930-6) · retrieved on 11/07/2026

Gelsenwasser Halingen

Stadtwerke Menden

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 31/12/2024. 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.

Water hardness
Hardness range weich
Key values Gelsenwasser Halingen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 13,6 mg/l 50 mg/l
27 %
Single value · Gelsenwasser Halingen
Sodium 24 mg/l 200 mg/l
12 %
Single value · Gelsenwasser Halingen
Show all recorded parameters (9 — most recent value per parameter)

Chemical parameters (2)

Chemical parameters – Gelsenwasser Halingen
Parameter Value Parametric value Share of the parametric value Reference
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Single value · Gelsenwasser Halingen
Nitrate 13,6 mg/l 50 mg/l
27 %
Single value · Gelsenwasser Halingen

Indicator parameters (3)

Indicator parameters – Gelsenwasser Halingen
Parameter Value Parametric value Share of the parametric value Reference
Chloride 27 mg/l 250 mg/l
11 %
Single value · Gelsenwasser Halingen
Iron n.n. mg/l
not detectable
 0.2 mg/l — Single value · Gelsenwasser Halingen
Sodium 24 mg/l 200 mg/l
12 %
Single value · Gelsenwasser Halingen

Further parameters (4)

Further parameters – Gelsenwasser Halingen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 44 mg/l — — Single value · Gelsenwasser Halingen
Hardness range (WRMG) weich — — Single value · Gelsenwasser Halingen
Magnesium 5,9 mg/l — — Single value · Gelsenwasser Halingen
Potassium 3,0 mg/l — — Single value · Gelsenwasser Halingen

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-menden.de/produkte-services/energie-wasser/wasser/wasserqualitaet.html · Analyse 2024 (Wasserwerk Ruhrtal, DIN 50930-6) · retrieved on 11/07/2026

Frequent questions about postcode 58706

How hard is the water in Postcode 58706?
Wasserwerke Westfalen GmbH publishes a total hardness of 7.5 °dH for the supply zone Wasserwerk Echthausen (hardness range weich). 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: Quartals-Mittel 2026/1, retrieved on 17/08/2026.
How much nitrate is in the drinking water in Postcode 58706?
Wasserwerke Westfalen GmbH publishes a nitrate value of 11,7 mg/l for the supply zone Wasserwerk Echthausen. The statutory parametric value is 50 mg/l; the measured value represents 23 % of the parametric value. Basis: Quartals-Mittel 2026/1, retrieved on 17/08/2026.
Who supplies the drinking water in Postcode 58706?
Wasserwerke Westfalen GmbH. The values shown here come from the supply zone Wasserwerk Echthausen 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.