Drinking water in 47661
For this postcode the responsible water supplier publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 2 underneath.
How to read the share of the parametric value
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.
Werksausgang - Trinkwasser nach Desinfektion
Wasserverbund Niederrhein GmbHAssigned 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 | 9,5 mg/l | 50 mg/l | 19 % | Mean |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Sulphate | 52,9 mg/l | 250 mg/l | 21 % | Mean |
| Sodium | 29,2 mg/l | 200 mg/l | 15 % | 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 (42 — most recent value per parameter)
Chemical parameters (23)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,1 µg/l below limit of quantification | 3 µg/l | < 3 % * | Mean |
| Acrylamide | < 0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean |
| Antimony | < 0,0010 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean |
| Arsenic | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Mean |
| Boron | 0,037 mg/l | 1 mg/l | 4 % | Mean |
| Bromate | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean |
| Cadmium | < 0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Mean |
| Chromium | < 0,001 mg/l below limit of quantification | 25 µg/l | < 4 % * | Mean |
| Copper | < 0,0020 mg/l below limit of quantification | 2 mg/l | < 0.1 % * | Mean |
| Cyanide | < 0,0050 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean |
| Epichlorohydrin | < 0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean |
| Fluoride | 0,12 mg/l | 1.5 mg/l | 8 % | Mean |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Mercury | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Mean |
| Nickel | < 0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Mean |
| Nitrate | 9,5 mg/l | 50 mg/l | 19 % | Mean |
| Nitrite | < 0,002 mg/l below limit of quantification | 0.5 mg/l | < 0.4 % * | 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 |
| Uranium | 0,725 µg/l | 10 µg/l | 7 % | Mean |
| Vinyl chloride | < 0,05 µg/l below limit of quantification | 0.5 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 (12)
| 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 | < 0,2 mg/l below limit of quantification | 0.5 mg/l | < 40 % * | Mean |
| Chloride | 50,4 mg/l | 250 mg/l | 20 % | Mean |
| Colour | - 1/m not determined | 0.5 m⁻¹ | — | Mean |
| Conductivity (25 °C) | 592 µS/cm | 2,790 µS/cm | — | Mean |
| Iron | < 0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean |
| Manganese | < 0,010 mg/l below limit of quantification | 50 µg/l | < 20 % * | Mean |
| Sodium | 29,2 mg/l | 200 mg/l | 15 % | Mean |
| Sulphate | 52,9 mg/l | 250 mg/l | 21 % | Mean |
| Temperature | 13,9 °C | — | — | Mean |
| Total organic carbon (TOC) | 0,64 mg/l | ohne anormale Veränderung | — | Mean |
| Turbidity | < 0,10 NTU below limit of quantification | 1 NTU | — | Mean |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 72,3 mg/l | — | — | Mean |
| Hardness range (WRMG) | mittel | — | — | Single value |
| Magnesium | 10,5 mg/l | — | — | Mean |
| Oxygen | 4,9 mg/l | — | — | Mean |
| Phosphate | 0,11 mg/l | — | — | Mean |
| Potassium | 3,6 mg/l | — | — | Mean |
| Total hardness | 12,7 °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.
Show 2 more supply zones in this postcode
Versorgungsgebiet Issum (ausgenommen Issum, Huckstraße und Ortsteil Sevelen); Herkunft des Trinkwassers: Wasserwerk Moers-Gerdt
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 | 10 mg/l | 50 mg/l | 20 % | Median |
| Sulphate | 56 mg/l | 250 mg/l | 22 % | Median |
| Sodium | 29 mg/l | 200 mg/l | 14 % | 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 | 10 mg/l | 50 mg/l | 20 % | Median |
Indicator parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcite dissolution capacity | 2,4 mg/l | 5 mg/l CaCO3 | — | Median |
| Chloride | 52 mg/l | 250 mg/l | 21 % | Median |
| Conductivity (25 °C) | 590 µS/cm | 2,790 µS/cm | — | Median |
| pH | 7,50 | 6,5–9,5 | — | Median |
| Sodium | 29 mg/l | 200 mg/l | 14 % | Median |
| Sulphate | 56 mg/l | 250 mg/l | 22 % | Median |
| Temperature | 13,5 °C | — | — | Median |
| Total organic carbon (TOC) | 0,8 mg/l | ohne anormale Veränderung | — | Median |
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,27 mmol/l | — | — | Median |
| Base capacity to pH 8.2 | 0,26 mmol/l | — | — | Median |
| Calcium | 75 mg/l | — | — | Median |
| Hardness range (WRMG) | 2,31 mmol/l | — | — | Median |
| Magnesium | 11,0 mg/l | — | — | Median |
| Oxygen | 4,2 mg/l | — | — | Median |
| Potassium | 3,6 mg/l | — | — | Median |
| Silicate / silicic acid | 3,5 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.
Hartefeld
Stadtwerke Geldern GmbHAssigned 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 | 21,8 mg/l | 50 mg/l | 44 % | Mean · Hartefeld |
| Lead | <0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Hartefeld |
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Mean · Hartefeld |
| Sulphate | 99,2 mg/l | 250 mg/l | 40 % | Mean · Hartefeld |
| Sodium | 16,9 mg/l | 200 mg/l | 8 % | Mean · Hartefeld |
* 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 (31 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Mean · Hartefeld |
Chemical parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | 0,08 mg/l | 1.5 mg/l | 5 % | Mean · Hartefeld |
| Lead | <0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Hartefeld |
| Nitrate | 21,8 mg/l | 50 mg/l | 44 % | Mean · Hartefeld |
| Nitrite | <0,020 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Hartefeld |
| Uranium | <0,0001 mg/l below limit of quantification | 10 µg/l | < 1 % * | Mean · Hartefeld |
* 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)
| 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 · Hartefeld |
| Ammonium | <0,020 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Hartefeld |
| Calcite dissolution capacity | 0 mg/l | 5 mg/l CaCO3 | — | Mean · Hartefeld |
| Chloride | 37,4 mg/l | 250 mg/l | 15 % | Mean · Hartefeld |
| Coliform bacteria | 0 MPN/100 ml | 0/100 ml | — | Mean · Hartefeld |
| Colony count 22 °C | 0 in 1 ml | ohne anormale Veränderung | — | Mean · Hartefeld |
| Colony count 36 °C | 0 in 1 ml | ohne anormale Veränderung | — | Mean · Hartefeld |
| Colour | <0,10 m-1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Hartefeld |
| Conductivity (25 °C) | 601 µS/cm | 2,790 µS/cm | — | Mean · Hartefeld |
| Iron | 0,007 mg/l | 0.2 mg/l | 3 % | Mean · Hartefeld |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Hartefeld |
| Odour | ohne - | für den Verbraucher annehmbar | — | Mean · Hartefeld |
| pH | 7,9 - | 6,5–9,5 | — | Mean · Hartefeld |
| Sodium | 16,9 mg/l | 200 mg/l | 8 % | Mean · Hartefeld |
| Sulphate | 99,2 mg/l | 250 mg/l | 40 % | Mean · Hartefeld |
| Temperature | 11,7 °C | — | — | Mean · Hartefeld |
| Total organic carbon (TOC) | 1,9 mg/l | ohne anormale Veränderung | — | Mean · Hartefeld |
| Turbidity | 0,18 NTU | 1 NTU | — | Mean · Hartefeld |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,53 mmol/l | — | — | Mean · Hartefeld |
| Base capacity to pH 8.2 | 0,08 mmol/l | — | — | Mean · Hartefeld |
| Calcite precipitation capacity | 5,2 mg/l | — | — | Mean · Hartefeld |
| Calcium | 79,0 mg/l | — | — | Mean · Hartefeld |
| Carbonate hardness | 7,1 °dH | — | — | Mean · Hartefeld |
| Magnesium | 15,0 mg/l | — | — | Mean · Hartefeld |
| Sum of alkaline earth metals | 2,59 mmol/l | — | — | Mean · Hartefeld |
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.
Frequent questions about postcode 47661
- How hard is the water in Postcode 47661?
- Wasserverbund Niederrhein GmbH publishes a total hardness of 12.7 °dH for the supply zone Werksausgang - Trinkwasser nach Desinfektion (hardness range mittel). The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Postcode 47661?
- Wasserverbund Niederrhein GmbH publishes a nitrate value of 9,5 mg/l for the supply zone Werksausgang - Trinkwasser nach Desinfektion. The statutory parametric value is 50 mg/l; the measured value represents 19 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Who supplies the drinking water in Postcode 47661?
- Wasserverbund Niederrhein GmbH. The values shown here come from the supply zone Werksausgang - Trinkwasser nach Desinfektion 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.