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Drinking water in Fröndenberg/Ruhr

12 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. 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.

Echthausen Wasserwerke Westfalen

Stadtwerke Hamm GmbH

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

Water hardness
7.2 °dH
Hardness range soft
Key values Echthausen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000020 mg/l — — Mean · Echthausen Wasserwerke Westfalen
Nitrate 9,7 mg/l 50 mg/l
19 %
Mean · Echthausen Wasserwerke Westfalen
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Echthausen Wasserwerke Westfalen
Escherichia coli (E. coli) 0 /100ml 0/100 ml — Mean · Echthausen Wasserwerke Westfalen
Sulphate 32 mg/l 250 mg/l
13 %
Mean · Echthausen Wasserwerke Westfalen
Sodium 20 mg/l 200 mg/l
10 %
Mean · Echthausen Wasserwerke Westfalen

* 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 (45 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (20)

Chemical parameters – Echthausen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,00005 mg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean · Echthausen Wasserwerke Westfalen
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Echthausen Wasserwerke Westfalen
Arsenic <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Echthausen Wasserwerke Westfalen
Benzene <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Echthausen Wasserwerke Westfalen
Benzo(a)pyrene <0,0000025 mg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean · Echthausen Wasserwerke Westfalen
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Echthausen Wasserwerke Westfalen
Bromate <0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Echthausen Wasserwerke Westfalen
Cadmium <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen
Chromium <0,0004 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Echthausen Wasserwerke Westfalen
Copper <0,005 mg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Echthausen Wasserwerke Westfalen
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Mean · Echthausen Wasserwerke Westfalen
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Echthausen Wasserwerke Westfalen
Mercury <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen
Nitrate 9,7 mg/l 50 mg/l
19 %
Mean · Echthausen Wasserwerke Westfalen
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Echthausen Wasserwerke Westfalen
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen
Tetrachloroethene and Trichloroethene (sum) <0,00005 mg/l
below limit of quantification
 10 µg/l
< 0.5 % *
Mean · Echthausen Wasserwerke Westfalen
Uranium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen

* 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 (1)

PFAS – Echthausen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000020 mg/l — — Mean · Echthausen Wasserwerke Westfalen

Indicator parameters (14)

Indicator parameters – Echthausen Wasserwerke Westfalen
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 · Echthausen Wasserwerke Westfalen
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Echthausen Wasserwerke Westfalen
Chloride 28 mg/l 250 mg/l
11 %
Mean · Echthausen Wasserwerke Westfalen
Clostridium perfringens (including spores) 0 /100ml 0/100 ml — Mean · Echthausen Wasserwerke Westfalen
Coliform bacteria 0 /100ml 0/100 ml — Mean · Echthausen Wasserwerke Westfalen
Colony count 36 °C 0 /ml ohne anormale Veränderung — Mean · Echthausen Wasserwerke Westfalen
Colour <0,1 m-1
below limit of quantification
 0.5 m⁻¹ — Mean · Echthausen Wasserwerke Westfalen
Conductivity (25 °C) 371 µS/cm 2,790 µS/cm — Mean · Echthausen Wasserwerke Westfalen
Iron <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Echthausen Wasserwerke Westfalen
Manganese <0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Echthausen Wasserwerke Westfalen
pH 7,92 6,5–9,5 — Mean · Echthausen Wasserwerke Westfalen
Sodium 20 mg/l 200 mg/l
10 %
Mean · Echthausen Wasserwerke Westfalen
Sulphate 32 mg/l 250 mg/l
13 %
Mean · Echthausen Wasserwerke Westfalen
Temperature 12,5 °C — — Mean · Echthausen Wasserwerke Westfalen

* 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 (8)

Further parameters – Echthausen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,04 mmol/l — — Mean · Echthausen Wasserwerke Westfalen
Base capacity to pH 8.2 0,04 mmol/l — — Mean · Echthausen Wasserwerke Westfalen
Calcium 42 mg/l — — Mean · Echthausen Wasserwerke Westfalen
Carbonate hardness 5,7 °dH — — Mean · Echthausen Wasserwerke Westfalen
Magnesium 5,7 mg/l — — Mean · Echthausen Wasserwerke Westfalen
Oxygen 11,1 mg/l — — Mean · Echthausen Wasserwerke Westfalen
Potassium 2,5 mg/l — — Mean · Echthausen Wasserwerke Westfalen
Total hardness 7,2 °dH — — Mean · Echthausen Wasserwerke Westfalen

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-hamm.de/fileadmin/user-storage/EWV/Wasser/Jahrestrinkwasseranalyse_2025.pdf · 08.04.26 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Postcodes in this zone: 58730

Show 11 more supply zones

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

Postcodes in this zone: 58730

Halingen Wasserwerke Westfalen

Stadtwerke Hamm GmbH

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

Water hardness
7.8 °dH
Hardness range soft
Key values Halingen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000021 mg/l — — Mean · Halingen Wasserwerke Westfalen
Nitrate 10,7 mg/l 50 mg/l
21 %
Mean · Halingen Wasserwerke Westfalen
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Halingen Wasserwerke Westfalen
Escherichia coli (E. coli) 0 /100ml 0/100 ml — Mean · Halingen Wasserwerke Westfalen
Sulphate 34 mg/l 250 mg/l
14 %
Mean · Halingen Wasserwerke Westfalen
Sodium 27 mg/l 200 mg/l
13 %
Mean · Halingen Wasserwerke Westfalen

* 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 (45 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (20)

Chemical parameters – Halingen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,00005 mg/l
below limit of quantification
 3 µg/l
< 2 % *
Mean · Halingen Wasserwerke Westfalen
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Halingen Wasserwerke Westfalen
Arsenic 0,0005 mg/l 10 µg/l
5 %
Mean · Halingen Wasserwerke Westfalen
Benzene <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Halingen Wasserwerke Westfalen
Benzo(a)pyrene <0,0000025 mg/l
below limit of quantification
 10 ng/l
< 25 % *
Mean · Halingen Wasserwerke Westfalen
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean · Halingen Wasserwerke Westfalen
Bromate <0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Halingen Wasserwerke Westfalen
Cadmium <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen
Chromium 0,0004 mg/l 25 µg/l
2 %
Mean · Halingen Wasserwerke Westfalen
Copper <0,005 mg/l
below limit of quantification
 2 mg/l
< 0.3 % *
Mean · Halingen Wasserwerke Westfalen
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Mean · Halingen Wasserwerke Westfalen
Lead <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Halingen Wasserwerke Westfalen
Mercury <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen
Nitrate 10,7 mg/l 50 mg/l
21 %
Mean · Halingen Wasserwerke Westfalen
Nitrite 0,01 mg/l 0.5 mg/l
2 %
Mean · Halingen Wasserwerke Westfalen
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen
Tetrachloroethene and Trichloroethene (sum) <0,00005 mg/l
below limit of quantification
 10 µg/l
< 0.5 % *
Mean · Halingen Wasserwerke Westfalen
Uranium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen

* 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 (1)

PFAS – Halingen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000021 mg/l — — Mean · Halingen Wasserwerke Westfalen

Indicator parameters (14)

Indicator parameters – Halingen Wasserwerke Westfalen
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 · Halingen Wasserwerke Westfalen
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Halingen Wasserwerke Westfalen
Chloride 37 mg/l 250 mg/l
15 %
Mean · Halingen Wasserwerke Westfalen
Clostridium perfringens (including spores) 0 /100ml 0/100 ml — Mean · Halingen Wasserwerke Westfalen
Coliform bacteria 0 /100ml 0/100 ml — Mean · Halingen Wasserwerke Westfalen
Colony count 36 °C 0 /ml ohne anormale Veränderung — Mean · Halingen Wasserwerke Westfalen
Colour 0,1 m-1 0.5 m⁻¹ — Mean · Halingen Wasserwerke Westfalen
Conductivity (25 °C) 432 µS/cm 2,790 µS/cm — Mean · Halingen Wasserwerke Westfalen
Iron <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Halingen Wasserwerke Westfalen
Manganese <0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Halingen Wasserwerke Westfalen
pH 7,85 6,5–9,5 — Mean · Halingen Wasserwerke Westfalen
Sodium 27 mg/l 200 mg/l
13 %
Mean · Halingen Wasserwerke Westfalen
Sulphate 34 mg/l 250 mg/l
14 %
Mean · Halingen Wasserwerke Westfalen
Temperature 13,2 °C — — Mean · Halingen Wasserwerke Westfalen

* 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 (8)

Further parameters – Halingen Wasserwerke Westfalen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,31 mmol/l — — Mean · Halingen Wasserwerke Westfalen
Base capacity to pH 8.2 0,06 mmol/l — — Mean · Halingen Wasserwerke Westfalen
Calcium 46 mg/l — — Mean · Halingen Wasserwerke Westfalen
Carbonate hardness 6,5 °dH — — Mean · Halingen Wasserwerke Westfalen
Magnesium 5,9 mg/l — — Mean · Halingen Wasserwerke Westfalen
Oxygen 8,7 mg/l — — Mean · Halingen Wasserwerke Westfalen
Potassium 3,1 mg/l — — Mean · Halingen Wasserwerke Westfalen
Total hardness 7,8 °dH — — Mean · Halingen Wasserwerke Westfalen

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-hamm.de/fileadmin/user-storage/EWV/Wasser/Jahrestrinkwasseranalyse_2025.pdf · 08.04.26 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Postcodes in this zone: 58730

nrw-stadtwerke-hamm gesamt

Stadtwerke Hamm GmbH

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

Key values nrw-stadtwerke-hamm gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9,8 mg/l 50 mg/l
20 %
Median
Sulphate 31,0 mg/l 250 mg/l
12 %
Median
Sodium 20 mg/l 200 mg/l
10 %
Median
Show all recorded parameters (17 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – nrw-stadtwerke-hamm gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9,8 mg/l 50 mg/l
20 %
Median

Indicator parameters (7)

Indicator parameters – nrw-stadtwerke-hamm gesamt
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity -3,1 mg/l 5 mg/l CaCO3 — Median
Chloride 28,4 mg/l 250 mg/l
11 %
Median
pH 7,79 6,5–9,5 — Median
Sodium 20 mg/l 200 mg/l
10 %
Median
Sulphate 31,0 mg/l 250 mg/l
12 %
Median
Temperature 13,2 °C — — Median
Total organic carbon (TOC) 1,1 mg/l ohne anormale Veränderung — Median

Further parameters (9)

Further parameters – nrw-stadtwerke-hamm gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,24 mmol/l — — Median
Base capacity to pH 8.2 0,10 mmol/l — — Median
Calcium 50 mg/l — — Median
Magnesium 5,4 mg/l — — Median
Oxygen 7,2 mg/l — — Median
Phosphate 0,11 mg/l — — Median
Potassium 2,6 mg/l — — Median
Silicate / silicic acid 2,44 mg/l — — Median
Sum of alkaline earth metals 1,47 mmol/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.stadtwerke-hamm.de/fileadmin/user-storage/EWV/Wasser/Trinkwasserparameter_2025.pdf · 08.04.2026 · Median 2025 · retrieved on 11/07/2026

Postcodes in this zone: 58730

Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)

Gelsenwasser

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

Water hardness
7.7 °dH
Hardness range weich
Key values Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9,2 mg/l 50 mg/l
18 %
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 42 mg/l 250 mg/l
17 %
Mean
Sodium 41 mg/l 200 mg/l
21 %
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 – Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)
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 – Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)
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 0,07 mg/l 1 mg/l
7 %
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 0,11 mg/l 1.5 mg/l
7 %
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 9,2 mg/l 50 mg/l
18 %
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 – Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)
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 55 mg/l 250 mg/l
22 %
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) 491 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 7,9 6,5–9,5 — Mean
Sodium 41 mg/l 200 mg/l
21 %
Mean
Sulphate 42 mg/l 250 mg/l
17 %
Mean
Temperature 14,1 °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 – Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)
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 – Verbundwasserwerk Essen; Entnahmestelle: Trinkwasser Essen nach UV Ltg. Überruhr, WAA 2 (00-0350)
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 42 mg/l — — Mean
Carbonate hardness 6,2 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 7,9 mg/l — — Mean
Oxygen 10,5 mg/l — — Mean
Phosphate 0,23 mg/l — — Mean
Potassium 4,4 mg/l — — Mean
Silicate / silicic acid 4,9 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/gelsenwasser/trinkwasseranalyse_essen.pdf · 2025 · retrieved on 11/07/2026

Postcodes in this zone: 58730

Versorgungsgebiet der Stadtwerke Essen AG (Herkunft des Trinkwassers: Verbundwasserwerk Essen, Wassergewinnung Essen GmbH)

Gelsenwasser

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

Water hardness
Hardness range 1,38
Key values Versorgungsgebiet der Stadtwerke Essen AG (Herkunft des Trinkwassers: Verbundwasserwerk Essen, Wassergewinnung Essen GmbH)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9 mg/l 50 mg/l
18 %
Median
Sulphate 42 mg/l 250 mg/l
17 %
Median
Sodium 41 mg/l 200 mg/l
21 %
Median
Show all recorded parameters (17 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Versorgungsgebiet der Stadtwerke Essen AG (Herkunft des Trinkwassers: Verbundwasserwerk Essen, Wassergewinnung Essen GmbH)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9 mg/l 50 mg/l
18 %
Median

Indicator parameters (8)

Indicator parameters – Versorgungsgebiet der Stadtwerke Essen AG (Herkunft des Trinkwassers: Verbundwasserwerk Essen, Wassergewinnung Essen GmbH)
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 0,8 mg/l 5 mg/l CaCO3 — Median
Chloride 55 mg/l 250 mg/l
22 %
Median
Conductivity (25 °C) 491 µS/cm 2,790 µS/cm — Median
pH 7,90 6,5–9,5 — Median
Sodium 41 mg/l 200 mg/l
21 %
Median
Sulphate 42 mg/l 250 mg/l
17 %
Median
Temperature 14,1 °C — — Median
Total organic carbon (TOC) 0,8 mg/l ohne anormale Veränderung — Median

Further parameters (8)

Further parameters – Versorgungsgebiet der Stadtwerke Essen AG (Herkunft des Trinkwassers: Verbundwasserwerk Essen, Wassergewinnung Essen GmbH)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,20 mmol/l — — Median
Base capacity to pH 8.2 0,06 mmol/l — — Median
Calcium 42 mg/l — — Median
Hardness range (WRMG) 1,38 mmol/l — — Median
Magnesium 7,9 mg/l — — Median
Oxygen 10,5 mg/l — — Median
Potassium 4,4 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/essen_inst.pdf · Median 2025 (Jahresmittelwert) · retrieved on 13/07/2026

Postcodes in this zone: 58730

Warmen EWV Hamm

Stadtwerke Hamm 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 soft
Key values Warmen EWV Hamm
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000013 mg/l — — Mean · Warmen EWV Hamm
Nitrate 9,80 mg/l 50 mg/l
20 %
Mean · Warmen EWV Hamm
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Escherichia coli (E. coli) 0 /100ml 0/100 ml — Mean · Warmen EWV Hamm
Sulphate 31,00 mg/l 250 mg/l
12 %
Mean · Warmen EWV Hamm
Sodium 20 mg/l 200 mg/l
10 %
Mean · Warmen EWV Hamm

* 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 (45 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (20)

Chemical parameters – Warmen EWV Hamm
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean · Warmen EWV Hamm
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Benzene <0,0002 mg/l
below limit of quantification
 1 µg/l
< 20 % *
Mean · Warmen EWV Hamm
Benzo(a)pyrene <0,000001 mg/l
below limit of quantification
 10 ng/l
< 10 % *
Mean · Warmen EWV Hamm
Boron 0,05 mg/l 1 mg/l
5 %
Mean · Warmen EWV Hamm
Bromate <0,0030 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean · Warmen EWV Hamm
Cadmium <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Warmen EWV Hamm
Copper <0,10 mg/l
below limit of quantification
 2 mg/l
< 5 % *
Mean · Warmen EWV Hamm
Cyanide <0,010 mg/l
below limit of quantification
 50 µg/l
< 20 % *
Mean · Warmen EWV Hamm
Fluoride 0,07 mg/l 1.5 mg/l
5 %
Mean · Warmen EWV Hamm
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Mercury <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Nickel <0,002 mg/l
below limit of quantification
 20 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Nitrate 9,80 mg/l 50 mg/l
20 %
Mean · Warmen EWV Hamm
Nitrite <0,01 mg/l
below limit of quantification
 0.5 mg/l
< 2 % *
Mean · Warmen EWV Hamm
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Warmen EWV Hamm
Tetrachloroethene and Trichloroethene (sum) <0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean · Warmen EWV Hamm
Uranium < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean · Warmen EWV Hamm

* 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 (1)

PFAS – Warmen EWV Hamm
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000013 mg/l — — Mean · Warmen EWV Hamm

Indicator parameters (14)

Indicator parameters – Warmen EWV Hamm
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,01 mg/l 0.2 mg/l
5 %
Mean · Warmen EWV Hamm
Ammonium 0,01 mg/l 0.5 mg/l
2 %
Mean · Warmen EWV Hamm
Chloride 28,40 mg/l 250 mg/l
11 %
Mean · Warmen EWV Hamm
Clostridium perfringens (including spores) 0 /100ml 0/100 ml — Mean · Warmen EWV Hamm
Coliform bacteria 0 /100ml 0/100 ml — Mean · Warmen EWV Hamm
Colony count 36 °C 0 /ml ohne anormale Veränderung — Mean · Warmen EWV Hamm
Colour 0,1 m-1 0.5 m⁻¹ — Mean · Warmen EWV Hamm
Conductivity (25 °C) 401 µS/cm 2,790 µS/cm — Mean · Warmen EWV Hamm
Iron <0,010 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Mean · Warmen EWV Hamm
Manganese <0,002 mg/l
below limit of quantification
 50 µg/l
< 4 % *
Mean · Warmen EWV Hamm
pH 7,79 6,5–9,5 — Mean · Warmen EWV Hamm
Sodium 20 mg/l 200 mg/l
10 %
Mean · Warmen EWV Hamm
Sulphate 31,00 mg/l 250 mg/l
12 %
Mean · Warmen EWV Hamm
Temperature 13,2 °C — — Mean · Warmen EWV Hamm

* 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 (8)

Further parameters – Warmen EWV Hamm
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,24 mmol/l — — Mean · Warmen EWV Hamm
Base capacity to pH 8.2 0,10 mmol/l — — Mean · Warmen EWV Hamm
Calcium 50 mg/l — — Mean · Warmen EWV Hamm
Carbonate hardness 7,8 °dH — — Mean · Warmen EWV Hamm
Magnesium 5,4 mg/l — — Mean · Warmen EWV Hamm
Oxygen 7,2 mg/l — — Mean · Warmen EWV Hamm
Potassium 2,6 mg/l — — Mean · Warmen EWV Hamm
Total hardness 8,3 °dH — — Mean · Warmen EWV Hamm

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-hamm.de/fileadmin/user-storage/EWV/Wasser/Jahrestrinkwasseranalyse_2025.pdf · 08.04.26 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Postcodes in this zone: 58730

Wasserwerk Bucholtwelmen

Gelsenwasser

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

Water hardness
14.7 °dH
Hardness range hart
Key values Wasserwerk Bucholtwelmen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 15 mg/l 50 mg/l
30 %
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 83 mg/l 250 mg/l
33 %
Mean
Sodium 15 mg/l 200 mg/l
8 %
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 (57 — most recent value per parameter)

Microbiology (2)

Microbiology – Wasserwerk Bucholtwelmen
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 Bucholtwelmen
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
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 0,1 mg/l 1.5 mg/l
7 %
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 15 mg/l 50 mg/l
30 %
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) 0,06 µg/l 10 µg/l
0.6 %
Mean
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
 50 µg/l
< 0.1 % *
Mean
Uranium 0,001 mg/l 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 Bucholtwelmen
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 2 mg/l 5 mg/l CaCO3 — Mean
Chloride 27 mg/l 250 mg/l
11 %
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 0,1 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 606 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 7,42 6,5–9,5 — Mean
Sodium 15 mg/l 200 mg/l
8 %
Mean
Sulphate 83 mg/l 250 mg/l
33 %
Mean
Temperature 11,1 °C — — Mean
Total organic carbon (TOC) 2,1 mg/l ohne anormale Veränderung — Mean
Turbidity 0,05 FNU 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 Bucholtwelmen
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 13 Bq/l 100 Bq/l — Mean

Further parameters (11)

Further parameters – Wasserwerk Bucholtwelmen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,45 mmol/l — — Mean
Base capacity to pH 8.2 0,34 mmol/l — — Mean
Calcium 93 mg/l — — Mean
Carbonate hardness 9,7 °dH — — Mean
Hardness range (WRMG) hart — — Mean
Magnesium 7,6 mg/l — — Mean
Oxygen 6,8 mg/l — — Mean
Phosphate 0,06 mg/l — — Mean
Potassium 5,5 mg/l — — Mean
Silicate / silicic acid 12,4 mg/l — — Mean
Total hardness 14,7 °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/huenxe_voerde/trinkwasseranalyse_bucholtwelmen.pdf · 2025 · retrieved on 13/07/2026

Postcodes in this zone: 58730

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

Postcodes in this zone: 58730

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

Postcodes in this zone: 58730

Wasserwerk Haltern

Gelsenwasser

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

Water hardness
Hardness range 2,02
Key values Wasserwerk Haltern
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 12 mg/l 50 mg/l
24 %
Median
Sulphate 48 mg/l 250 mg/l
19 %
Median
Sodium 19 mg/l 200 mg/l
9 %
Median
Show all recorded parameters (17 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Wasserwerk Haltern
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 12 mg/l 50 mg/l
24 %
Median

Indicator parameters (8)

Indicator parameters – Wasserwerk Haltern
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 0,2 mg/l 5 mg/l CaCO3 — Median
Chloride 26 mg/l 250 mg/l
10 %
Median
Conductivity (25 °C) 487 µS/cm 2,790 µS/cm — Median
pH 7,55 6,5–9,5 — Median
Sodium 19 mg/l 200 mg/l
9 %
Median
Sulphate 48 mg/l 250 mg/l
19 %
Median
Temperature 13,3 °C — — Median
Total organic carbon (TOC) 3,0 mg/l ohne anormale Veränderung — Median

Further parameters (8)

Further parameters – Wasserwerk Haltern
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,97 mmol/l — — Median
Base capacity to pH 8.2 0,21 mmol/l — — Median
Calcium 73 mg/l — — Median
Hardness range (WRMG) 2,02 mmol/l — — Median
Magnesium 4,8 mg/l — — Median
Oxygen 6,9 mg/l — — Median
Potassium 5,3 mg/l — — Median
Silicate / silicic acid 4,0 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/haltern_inst.pdf · 2025 · retrieved on 25/07/2026

Postcodes in this zone: 58730

Wasserwerk Haltern, Gelsenwasser AG

Gelsenwasser

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

Water hardness
Hardness range 2,02
Key values Wasserwerk Haltern, Gelsenwasser AG
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 12 mg/l 50 mg/l
24 %
Median
Sulphate 48 mg/l 250 mg/l
19 %
Median
Sodium 19 mg/l 200 mg/l
9 %
Median
Show all recorded parameters (17 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Wasserwerk Haltern, Gelsenwasser AG
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 12 mg/l 50 mg/l
24 %
Median

Indicator parameters (8)

Indicator parameters – Wasserwerk Haltern, Gelsenwasser AG
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 0,2 mg/l 5 mg/l CaCO3 — Median
Chloride 26 mg/l 250 mg/l
10 %
Median
Conductivity (25 °C) 487 µS/cm 2,790 µS/cm — Median
pH 7,55 6,5–9,5 — Median
Sodium 19 mg/l 200 mg/l
9 %
Median
Sulphate 48 mg/l 250 mg/l
19 %
Median
Temperature 13,3 °C — — Median
Total organic carbon (TOC) 3,0 mg/l ohne anormale Veränderung — Median

Further parameters (8)

Further parameters – Wasserwerk Haltern, Gelsenwasser AG
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,97 mmol/l — — Median
Base capacity to pH 8.2 0,21 mmol/l — — Median
Calcium 73 mg/l — — Median
Hardness range (WRMG) 2,02 mmol/l — — Median
Magnesium 4,8 mg/l — — Median
Oxygen 6,9 mg/l — — Median
Potassium 5,3 mg/l — — Median
Silicate / silicic acid 4,0 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/haltern_inst.pdf · 2025 · retrieved on 25/07/2026

Postcodes in this zone: 58730

Frequently asked questions about drinking water in Fröndenberg/Ruhr

How hard is the water in Fröndenberg/Ruhr?
Stadtwerke Hamm GmbH publishes a total hardness of 7.2 °dH for the supply zone Echthausen Wasserwerke Westfalen (hardness range soft). 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: 08.04.26, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Fröndenberg/Ruhr?
Stadtwerke Hamm GmbH publishes a nitrate value of 9,7 mg/l for the supply zone Echthausen Wasserwerke Westfalen. The statutory parametric value is 50 mg/l; the measured value represents 19 % of the parametric value. Basis: 08.04.26, retrieved on 11/07/2026.
Who supplies the drinking water in Fröndenberg/Ruhr?
Stadtwerke Hamm GmbH. The values shown here come from the supply zone Echthausen Wasserwerke Westfalen 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.