Drinking water in Linnich
5 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
GelsenwasserAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
7.2 °dH
Hardness range weich
| 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 (53 — most recent value per parameter)
Microbiology (2)
| 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 (23)
| 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 |
| Pesticides — Total | <0,000025 mg/l below limit of quantification | 0.5 µg/l | < 5 % * | Mean · Echthausen Wasserwerke Westfalen |
| Polycyclic aromatic hydrocarbons | <0,000005 mg/l below limit of quantification | 0.1 µg/l | < 5 % * | 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 |
| Trihalomethanes — Total | <0,00005 mg/l below limit of quantification | 50 µg/l | < 0.1 % * | 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 (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,000008 mg/l | — | — | Mean · Echthausen Wasserwerke Westfalen |
| Sum of PFAS | 0,000020 mg/l | — | — | Mean · Echthausen Wasserwerke Westfalen |
Indicator parameters (16)
| 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 22 °C | 0 /ml | ohne anormale Veränderung | — | 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 |
| Turbidity | <0,05 NTU below limit of quantification | 1 NTU | — | 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 (10)
| 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 |
| Hardness range (WRMG) | weich | — | — | Mean · Echthausen Wasserwerke Westfalen |
| Magnesium | 5,7 mg/l | — | — | Mean · Echthausen Wasserwerke Westfalen |
| Oxygen | 11,1 mg/l | — | — | Mean · Echthausen Wasserwerke Westfalen |
| Phosphate | 0,13 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 08/07/2026
Postcodes in this zone: 52441
Show 4 more supply zones
Halingen Wasserwerke Westfalen
GelsenwasserAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
7.8 °dH
Hardness range weich
| 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 (53 — most recent value per parameter)
Microbiology (2)
| 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 (23)
| 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 |
| Pesticides — Total | <0,000025 mg/l below limit of quantification | 0.5 µg/l | < 5 % * | Mean · Halingen Wasserwerke Westfalen |
| Polycyclic aromatic hydrocarbons | <0,000005 mg/l below limit of quantification | 0.1 µg/l | < 5 % * | 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 |
| Trihalomethanes — Total | <0,00005 mg/l below limit of quantification | 50 µg/l | < 0.1 % * | 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 (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,000008 mg/l | — | — | Mean · Halingen Wasserwerke Westfalen |
| Sum of PFAS | 0,000021 mg/l | — | — | Mean · Halingen Wasserwerke Westfalen |
Indicator parameters (16)
| 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 22 °C | 0 /ml | ohne anormale Veränderung | — | 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 |
| Turbidity | <0,05 NTU below limit of quantification | 1 NTU | — | 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 (10)
| 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 |
| Hardness range (WRMG) | weich | — | — | Mean · Halingen Wasserwerke Westfalen |
| Magnesium | 5,9 mg/l | — | — | Mean · Halingen Wasserwerke Westfalen |
| Oxygen | 8,7 mg/l | — | — | Mean · Halingen Wasserwerke Westfalen |
| Phosphate | 0,18 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 08/07/2026
Postcodes in this zone: 52441
linnich gesamt
GelsenwasserAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
| 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)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 9,8 mg/l | 50 mg/l | 20 % | Median |
Indicator parameters (7)
| 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)
| 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 08/07/2026
Postcodes in this zone: 52441
Warmen EWV Hamm
GelsenwasserAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
8.3 °dH
Hardness range weich
| 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 (53 — most recent value per parameter)
Microbiology (2)
| 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 (23)
| 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 |
| Pesticides — Total | <0,00002 mg/l below limit of quantification | 0.5 µg/l | < 4 % * | Mean · Warmen EWV Hamm |
| Polycyclic aromatic hydrocarbons | <0,000002 mg/l below limit of quantification | 0.1 µg/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 |
| Trihalomethanes — Total | 0,001000 mg/l | 50 µg/l | 2 % | 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 (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,000006 mg/l | — | — | Mean · Warmen EWV Hamm |
| Sum of PFAS | 0,000013 mg/l | — | — | Mean · Warmen EWV Hamm |
Indicator parameters (16)
| 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 22 °C | 0 /ml | ohne anormale Veränderung | — | 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 |
| Turbidity | 0,09 NTU | 1 NTU | — | 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 (10)
| 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 |
| Hardness range (WRMG) | weich | — | — | Mean · Warmen EWV Hamm |
| Magnesium | 5,4 mg/l | — | — | Mean · Warmen EWV Hamm |
| Oxygen | 7,2 mg/l | — | — | Mean · Warmen EWV Hamm |
| Phosphate | 0,11 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 08/07/2026
Postcodes in this zone: 52441
Wasserwerk Niederbusch
Verbandswasserwerk Gangelt GmbHAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
Hardness range mittel
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 20 mg/l | 50 mg/l | 40 % | Single value · Wasserwerk Niederbusch |
| Lead | < 0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value · Wasserwerk Niederbusch |
| Sulphate | 81,0 mg/l | 250 mg/l | 32 % | Single value · Wasserwerk Niederbusch |
| Sodium | 15,0 mg/l | 200 mg/l | 8 % | Single value · Wasserwerk Niederbusch |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Show all recorded parameters (22 — most recent value per parameter)
Chemical parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | 0,001 mg/l | 10 µg/l | 10 % | Single value · Wasserwerk Niederbusch |
| Cadmium | < 0,001 mg/l below limit of quantification | 3 µg/l | < 33 % * | Single value · Wasserwerk Niederbusch |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value · Wasserwerk Niederbusch |
| Copper | 0,0007 mg/l | 2 mg/l | < 0.1 % | Single value · Wasserwerk Niederbusch |
| Fluoride | < 0,1 mg/l below limit of quantification | 1.5 mg/l | < 7 % * | Single value · Wasserwerk Niederbusch |
| Lead | < 0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value · Wasserwerk Niederbusch |
| Nickel | 0,005 mg/l | 20 µg/l | 25 % | Single value · Wasserwerk Niederbusch |
| Nitrate | 20 mg/l | 50 mg/l | 40 % | Single value · Wasserwerk Niederbusch |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value · Wasserwerk Niederbusch |
* 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | < 0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value · Wasserwerk Niederbusch |
| Chloride | 31,0 mg/l | 250 mg/l | 12 % | Single value · Wasserwerk Niederbusch |
| Colony count 22 °C | 0 / 1 ml | ohne anormale Veränderung | — | Single value · Wasserwerk Niederbusch |
| Colony count 36 °C | 0 / 1 ml | ohne anormale Veränderung | — | Single value · Wasserwerk Niederbusch |
| Iron | < 0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value · Wasserwerk Niederbusch |
| Manganese | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value · Wasserwerk Niederbusch |
| pH | 7,74 | 6,5–9,5 | — | Single value · Wasserwerk Niederbusch |
| Sodium | 15,0 mg/l | 200 mg/l | 8 % | Single value · Wasserwerk Niederbusch |
| Sulphate | 81,0 mg/l | 250 mg/l | 32 % | Single value · Wasserwerk Niederbusch |
* 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.
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Free chlorine | nicht nachweisbar not detectable | — | — | Single value · Wasserwerk Niederbusch |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 77,0 mg/l | — | — | Single value · Wasserwerk Niederbusch |
| Hardness range (WRMG) | mittel | — | — | Single value · Wasserwerk Niederbusch |
| Magnesium | 8,0 mg/l | — | — | Single value · Wasserwerk Niederbusch |
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.verbandswasserwerk-gangelt.de/trinkwasser-qualitaet/ · Geilenkirchen, Mai 2025 · retrieved on 11/07/2026
Postcodes in this zone: 52441
Frequently asked questions about drinking water in Linnich
- How hard is the water in Linnich?
- Gelsenwasser publishes a total hardness of 7.2 °dH for the supply zone Echthausen Wasserwerke Westfalen (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: 08.04.26, retrieved on 08/07/2026.
- How much nitrate is in the drinking water in Linnich?
- Gelsenwasser 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 08/07/2026.
- Who supplies the drinking water in Linnich?
- Gelsenwasser. 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.