Drinking water in Schermbeck
8 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
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.
Dorsten-Holsterhausen
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 | 9,6 mg/l | 50 mg/l | 19 % | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Sulphate | 60 mg/l | 250 mg/l | 24 % | Median |
| Sodium | 11,3 mg/l | 200 mg/l | 6 % | Median |
* 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Median |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Median |
| Arsenic | 1 µg/l | 10 µg/l | 10 % | Median |
| Benzene | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Median |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Median |
| Boron | <0,05 mg/l below limit of quantification | 1 mg/l | < 5 % * | Median |
| Bromate | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Cadmium | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Median |
| Chromium | <5 µg/l below limit of quantification | 25 µg/l | < 20 % * | Median |
| Copper | <20 µg/l below limit of quantification | 2 mg/l | < 1 % * | Median |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Median |
| Nickel | <1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Median |
| Nitrate | 9,6 mg/l | 50 mg/l | 19 % | Median |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Median |
| Pesticides | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Pesticides — Total | n.n. µg/l not detectable | 0.5 µg/l | — | Median |
| Polycyclic aromatic hydrocarbons | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Selenium | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Tetrachloroethene and Trichloroethene (sum) | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Trihalomethanes — Total | <1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Median |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Median |
* 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 (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <20 µg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Ammonium | <0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Median |
| Chloride | 26 mg/l | 250 mg/l | 10 % | Median |
| Colour | <0,05 1/m below limit of quantification | 0.5 m⁻¹ | — | Median |
| Conductivity (25 °C) | 517 µS/cm | 2,790 µS/cm | — | Median |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| pH | 7,45 | 6,5–9,5 | — | Median |
| Sodium | 11,3 mg/l | 200 mg/l | 6 % | Median |
| Sulphate | 60 mg/l | 250 mg/l | 24 % | Median |
| Temperature | 11,8 °C | — | — | Median |
| Total organic carbon (TOC) | 0,6 mg/l | ohne anormale Veränderung | — | Median |
| Turbidity | <0,1 NTU below limit of quantification | 1 NTU | — | Median |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,10 mmol/l | — | — | Median |
| Calcium | 89,5 mg/l | — | — | Median |
| Carbonate hardness | 8,7 °dH | — | — | Median |
| Hardness range (WRMG) | mittel | — | — | Median |
| Magnesium | 4,1 mg/l | — | — | Median |
| Phosphate | 1,5 mg/l | — | — | Median |
| Potassium | 2,2 mg/l | — | — | Median |
| Sum of alkaline earth metals | 2,40 mmol/l | — | — | Median |
| Total hardness | 13,5 °dH | — | — | 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.
Postcodes in this zone: 46514
Show 7 more supply zones
Essen-Kettwig
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 | 9,9 mg/l | 50 mg/l | 20 % | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Sulphate | 46 mg/l | 250 mg/l | 18 % | Median |
| Sodium | 56,2 mg/l | 200 mg/l | 28 % | Median |
* 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Median |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Median |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Benzene | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Median |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Median |
| Boron | 0,07 mg/l | 1 mg/l | 7 % | Median |
| Bromate | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Cadmium | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Median |
| Chromium | <5 µg/l below limit of quantification | 25 µg/l | < 20 % * | Median |
| Copper | <20 µg/l below limit of quantification | 2 mg/l | < 1 % * | Median |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Median |
| Nickel | <1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Median |
| Nitrate | 9,9 mg/l | 50 mg/l | 20 % | Median |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Median |
| Pesticides | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Pesticides — Total | n.n. µg/l not detectable | 0.5 µg/l | — | Median |
| Polycyclic aromatic hydrocarbons | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Selenium | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Tetrachloroethene and Trichloroethene (sum) | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Trihalomethanes — Total | <1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Median |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Median |
* 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 (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <20 µg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Ammonium | <0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Median |
| Chloride | 70 mg/l | 250 mg/l | 28 % | Median |
| Colour | <0,05 1/m below limit of quantification | 0.5 m⁻¹ | — | Median |
| Conductivity (25 °C) | 621 µS/cm | 2,790 µS/cm | — | Median |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| pH | 7,84 | 6,5–9,5 | — | Median |
| Sodium | 56,2 mg/l | 200 mg/l | 28 % | Median |
| Sulphate | 46 mg/l | 250 mg/l | 18 % | Median |
| Temperature | 18,4 °C | — | — | Median |
| Total organic carbon (TOC) | <0,5 mg/l below limit of quantification | ohne anormale Veränderung | — | Median |
| Turbidity | <0,1 NTU below limit of quantification | 1 NTU | — | Median |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,58 mmol/l | — | — | Median |
| Calcium | 45,4 mg/l | — | — | Median |
| Carbonate hardness | 7,2 °dH | — | — | Median |
| Hardness range (WRMG) | weich | — | — | Median |
| Magnesium | 8,2 mg/l | — | — | Median |
| Phosphate | 1,6 mg/l | — | — | Median |
| Potassium | 4,5 mg/l | — | — | Median |
| Sum of alkaline earth metals | 1,47 mmol/l | — | — | Median |
| Total hardness | 8,2 °dH | — | — | 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.
Postcodes in this zone: 46514
Mülheim-Styrum-Ost, Mülheim-Styrum-West
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 | 8,7 mg/l | 50 mg/l | 17 % | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Sulphate | 47 mg/l | 250 mg/l | 19 % | Median |
| Sodium | 55,8 mg/l | 200 mg/l | 28 % | Median |
* 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Median |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Median |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Benzene | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Median |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Median |
| Boron | 0,07 mg/l | 1 mg/l | 7 % | Median |
| Bromate | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Cadmium | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Median |
| Chromium | <5 µg/l below limit of quantification | 25 µg/l | < 20 % * | Median |
| Copper | <20 µg/l below limit of quantification | 2 mg/l | < 1 % * | Median |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Median |
| Nickel | <1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Median |
| Nitrate | 8,7 mg/l | 50 mg/l | 17 % | Median |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Median |
| Pesticides | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Pesticides — Total | n.n. µg/l not detectable | 0.5 µg/l | — | Median |
| Polycyclic aromatic hydrocarbons | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Selenium | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Tetrachloroethene and Trichloroethene (sum) | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Trihalomethanes — Total | <1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Median |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Median |
* 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 (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <20 µg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Ammonium | <0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Median |
| Chloride | 67 mg/l | 250 mg/l | 27 % | Median |
| Colour | <0,05 1/m below limit of quantification | 0.5 m⁻¹ | — | Median |
| Conductivity (25 °C) | 590 µS/cm | 2,790 µS/cm | — | Median |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| pH | 7,78 | 6,5–9,5 | — | Median |
| Sodium | 55,8 mg/l | 200 mg/l | 28 % | Median |
| Sulphate | 47 mg/l | 250 mg/l | 19 % | Median |
| Temperature | 14,8 °C | — | — | Median |
| Total organic carbon (TOC) | 0,5 mg/l | ohne anormale Veränderung | — | Median |
| Turbidity | <0,1 NTU below limit of quantification | 1 NTU | — | Median |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,60 mmol/l | — | — | Median |
| Calcium | 43,6 mg/l | — | — | Median |
| Carbonate hardness | 7,3 °dH | — | — | Median |
| Hardness range (WRMG) | weich | — | — | Median |
| Magnesium | 8,3 mg/l | — | — | Median |
| Phosphate | <0,5 mg/l below limit of quantification | — | — | Median |
| Potassium | 5,0 mg/l | — | — | Median |
| Sum of alkaline earth metals | 1,43 mmol/l | — | — | Median |
| Total hardness | 8,0 °dH | — | — | 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.
Postcodes in this zone: 46514
Mülheim-Styrum-Ost (Versorgungsbereich: Mülheim-Mintard)
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 % | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Sulphate | 46 mg/l | 250 mg/l | 18 % | Median |
| Sodium | 50,1 mg/l | 200 mg/l | 25 % | Median |
* 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Median |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Median |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Benzene | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Median |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Median |
| Boron | 0,07 mg/l | 1 mg/l | 7 % | Median |
| Bromate | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Cadmium | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Median |
| Chromium | <5 µg/l below limit of quantification | 25 µg/l | < 20 % * | Median |
| Copper | <20 µg/l below limit of quantification | 2 mg/l | < 1 % * | Median |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Median |
| Nickel | <1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Median |
| Nitrate | 9,5 mg/l | 50 mg/l | 19 % | Median |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Median |
| Pesticides | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Pesticides — Total | n.n. µg/l not detectable | 0.5 µg/l | — | Median |
| Polycyclic aromatic hydrocarbons | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Selenium | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Tetrachloroethene and Trichloroethene (sum) | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Trihalomethanes — Total | <1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Median |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Median |
* 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 (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <20 µg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Ammonium | <0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Median |
| Chloride | 62 mg/l | 250 mg/l | 25 % | Median |
| Colour | <0,05 1/m below limit of quantification | 0.5 m⁻¹ | — | Median |
| Conductivity (25 °C) | 592 µS/cm | 2,790 µS/cm | — | Median |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| pH | 7,77 | 6,5–9,5 | — | Median |
| Sodium | 50,1 mg/l | 200 mg/l | 25 % | Median |
| Sulphate | 46 mg/l | 250 mg/l | 18 % | Median |
| Temperature | 14,5 °C | — | — | Median |
| Total organic carbon (TOC) | 0,7 mg/l | ohne anormale Veränderung | — | Median |
| Turbidity | <0,1 NTU below limit of quantification | 1 NTU | — | Median |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,87 mmol/l | — | — | Median |
| Calcium | 47,9 mg/l | — | — | Median |
| Carbonate hardness | 8,0 °dH | — | — | Median |
| Hardness range (WRMG) | mittel | — | — | Median |
| Magnesium | 8,4 mg/l | — | — | Median |
| Phosphate | <0,5 mg/l below limit of quantification | — | — | Median |
| Potassium | 4,8 mg/l | — | — | Median |
| Sum of alkaline earth metals | 1,54 mmol/l | — | — | Median |
| Total hardness | 8,6 °dH | — | — | 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.
Postcodes in this zone: 46514
Reinwasser neues Wasserwerk WW Offlum (Lokalisation: Reinwasser WW Offlum)
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 12/03/2025. 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 6,87 mg/l | 50 mg/l | 14 % | Single value |
| Lead | <0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Sulphate | 69,4 mg/l | 250 mg/l | 28 % | Single value |
| Sodium | 19,3 mg/l | 200 mg/l | 10 % | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Show all recorded parameters (87 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Single value |
Chemical parameters (60)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0010 mg/l below limit of quantification | 3 µg/l | < 33 % * | Single value |
| 2,4-D | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Antimony | <0,0015 mg/l below limit of quantification | 5 µg/l | < 30 % * | Single value |
| Arsenic | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Single value |
| Atrazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Bentazone | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Benzene | <0,0003 mg/l below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Benzo(a)pyrene | <0,000003 mg/l below limit of quantification | 10 ng/l | < 30 % * | Single value |
| Benzo(b)fluoranthene | <0,000007 mg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,000007 mg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,000007 mg/l below limit of quantification | — | — | Single value |
| Boron | 0,053 mg/l | 1 mg/l | 5 % | Single value |
| Bromacil | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Single value |
| Bromoxynil | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Cadmium | <0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Carbetamide | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Chloridazon | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Chlorotoluron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Clopyralid | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Copper | <0,0500 mg/l below limit of quantification | 2 mg/l | < 3 % * | Single value |
| Cyanide | <0,0020 mg/l below limit of quantification | 50 µg/l | < 4 % * | Single value |
| Desethylatrazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Desethylterbuthylazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Dicamba | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Dichlorprop | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Diflufenican | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Dimefuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Diuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Ethidimuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Flufenacet | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Fluoride | 0,107 mg/l | 1.5 mg/l | 7 % | Single value |
| Hexazinone | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | <0,000007 mg/l below limit of quantification | — | — | Single value |
| Isoproturon | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Lead | <0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| MCPA | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Mecoprop | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metamitron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metazachlor | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Methabenzthiazuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metolachlor | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metribuzin | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Nickel | <0,0010 mg/l below limit of quantification | 20 µg/l | < 5 % * | Single value |
| Nitrate | 6,87 mg/l | 50 mg/l | 14 % | Single value |
| Nitrite | <0,0300 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value |
| Pendimethalin | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Pesticides — Total | <0,00003 mg/l below limit of quantification | 0.5 µg/l | < 6 % * | Single value |
| Polycyclic aromatic hydrocarbons | <0,00002 mg/l below limit of quantification | 0.1 µg/l | < 20 % * | Single value |
| Prosulfocarb | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Quinmerac | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Selenium | 0,0015 mg/l | 10 µg/l | 15 % | Single value |
| Simazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,0015 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,0015 mg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | 0,000 mg/l | 50 µg/l | 0 % | Single value |
| Uranium | 0,0011 mg/l | 10 µg/l | 11 % | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,0400 mg/l below limit of quantification | 0.2 mg/l | < 20 % * | Single value |
| Ammonium | <0,1000 mg/l below limit of quantification | 0.5 mg/l | < 20 % * | Single value |
| Calcite dissolution capacity | 0 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 28,7 mg/l | 250 mg/l | 11 % | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Conductivity (25 °C) | 601 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | <0,0400 mg/l below limit of quantification | 0.2 mg/l | < 20 % * | Single value |
| Manganese | <0,0300 mg/l below limit of quantification | 50 µg/l | < 60 % * | Single value |
| Odour | geruchlos | für den Verbraucher annehmbar | — | Single value |
| Oxidisability | 1,93 mg/l O2 | 5 mg/l O2 | — | Single value |
| Sodium | 19,3 mg/l | 200 mg/l | 10 % | Single value |
| Sulphate | 69,4 mg/l | 250 mg/l | 28 % | Single value |
| Taste | ohne | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | 4,42 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | <0,10 FTU below limit of quantification | 1 NTU | — | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| AOX (adsorbable organically bound halogens) | <0,01 mg/l below limit of quantification | — | — | Single value |
| Calcite precipitation capacity | 6,45 mg/l | — | — | Single value |
| Calcium | 90 mg/l | — | — | Single value |
| Carbonate hardness | 10,6 °dH | — | — | Single value |
| Dissolved organic carbon (DOC) | 3,45 mg/l | — | — | Single value |
| Hydrogen carbonate | 230 mg/l | — | — | Single value |
| Magnesium | 5,20 mg/l | — | — | Single value |
| Potassium | 7,0 mg/l | — | — | Single value |
| Silicate / silicic acid | 7,78 mg/l | — | — | Single value |
| Total hardness | 13,8 °dH | — | — | Single value |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Postcodes in this zone: 46514
Reken-Melchenberg (Versorgungsbereiche: Reken, Gescher-Hochmoor, Velen (ohne Velen-Ramsdorf))
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 | 30,7 mg/l | 50 mg/l | 61 % | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Sulphate | 8 mg/l | 250 mg/l | 3 % | Median |
| Sodium | 36,1 mg/l | 200 mg/l | 18 % | Median |
* 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Median |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Median |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Benzene | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Median |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Median |
| Boron | <0,05 mg/l below limit of quantification | 1 mg/l | < 5 % * | Median |
| Bromate | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Cadmium | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Median |
| Chromium | <5 µg/l below limit of quantification | 25 µg/l | < 20 % * | Median |
| Copper | <20 µg/l below limit of quantification | 2 mg/l | < 1 % * | Median |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Median |
| Nickel | 3 µg/l | 20 µg/l | 15 % | Median |
| Nitrate | 30,7 mg/l | 50 mg/l | 61 % | Median |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Median |
| Pesticides | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Pesticides — Total | n.n. µg/l not detectable | 0.5 µg/l | — | Median |
| Polycyclic aromatic hydrocarbons | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Selenium | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Tetrachloroethene and Trichloroethene (sum) | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Trihalomethanes — Total | <1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Median |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Median |
* 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 (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <20 µg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Ammonium | <0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Median |
| Chloride | 18 mg/l | 250 mg/l | 7 % | Median |
| Colour | <0,05 1/m below limit of quantification | 0.5 m⁻¹ | — | Median |
| Conductivity (25 °C) | 313 µS/cm | 2,790 µS/cm | — | Median |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| pH | 8,30 | 6,5–9,5 | — | Median |
| Sodium | 36,1 mg/l | 200 mg/l | 18 % | Median |
| Sulphate | 8 mg/l | 250 mg/l | 3 % | Median |
| Temperature | 10,8 °C | — | — | Median |
| Total organic carbon (TOC) | <0,5 mg/l below limit of quantification | ohne anormale Veränderung | — | Median |
| Turbidity | <0,1 NTU below limit of quantification | 1 NTU | — | Median |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 1,86 mmol/l | — | — | Median |
| Calcium | 23,5 mg/l | — | — | Median |
| Carbonate hardness | 5,2 °dH | — | — | Median |
| Hardness range (WRMG) | weich | — | — | Median |
| Magnesium | 2,3 mg/l | — | — | Median |
| Phosphate | 1,6 mg/l | — | — | Median |
| Potassium | 1,8 mg/l | — | — | Median |
| Sum of alkaline earth metals | 0,68 mmol/l | — | — | Median |
| Total hardness | 3,8 °dH | — | — | 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.
Postcodes in this zone: 46514
Velen-Tannenbültenberg, Reken-Melchenberg; Versorgungsbereiche: Velen, Gescher-Hochmoor, Borken-Weseke und -Burlo
RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbHAssigned 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 | 29,7 mg/l | 50 mg/l | 59 % | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Sulphate | 10 mg/l | 250 mg/l | 4 % | Median |
| Sodium | 34,6 mg/l | 200 mg/l | 17 % | Median |
* 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Median |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Median |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Benzene | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Median |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Median |
| Boron | <0,05 mg/l below limit of quantification | 1 mg/l | < 5 % * | Median |
| Bromate | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Cadmium | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Median |
| Chromium | <5 µg/l below limit of quantification | 25 µg/l | < 20 % * | Median |
| Copper | <20 µg/l below limit of quantification | 2 mg/l | < 1 % * | Median |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Median |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Median |
| Nickel | 2 µg/l | 20 µg/l | 10 % | Median |
| Nitrate | 29,7 mg/l | 50 mg/l | 59 % | Median |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Median |
| Pesticides | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Pesticides — Total | n.n. µg/l not detectable | 0.5 µg/l | — | Median |
| Polycyclic aromatic hydrocarbons | n.n. µg/l not detectable | 0.1 µg/l | — | Median |
| Selenium | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Tetrachloroethene and Trichloroethene (sum) | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Median |
| Trihalomethanes — Total | <1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Median |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Median |
* 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 (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <20 µg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Ammonium | <0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Median |
| Chloride | 17 mg/l | 250 mg/l | 7 % | Median |
| Colour | <0,05 1/m below limit of quantification | 0.5 m⁻¹ | — | Median |
| Conductivity (25 °C) | 316 µS/cm | 2,790 µS/cm | — | Median |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Median |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Median |
| pH | 8,28 | 6,5–9,5 | — | Median |
| Sodium | 34,6 mg/l | 200 mg/l | 17 % | Median |
| Sulphate | 10 mg/l | 250 mg/l | 4 % | Median |
| Temperature | 11,0 °C | — | — | Median |
| Total organic carbon (TOC) | <0,5 mg/l below limit of quantification | ohne anormale Veränderung | — | Median |
| Turbidity | <0,1 NTU below limit of quantification | 1 NTU | — | Median |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 1,96 mmol/l | — | — | Median |
| Calcium | 24,1 mg/l | — | — | Median |
| Carbonate hardness | 5,5 °dH | — | — | Median |
| Hardness range (WRMG) | weich | — | — | Median |
| Magnesium | 2,4 mg/l | — | — | Median |
| Phosphate | 1,7 mg/l | — | — | Median |
| Potassium | 1,9 mg/l | — | — | Median |
| Sum of alkaline earth metals | 0,70 mmol/l | — | — | Median |
| Total hardness | 3,9 °dH | — | — | 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.
Postcodes in this zone: 46514
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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 10,2 mg/l | 50 mg/l | 20 % | Mean |
| Sulphate | 97,1 mg/l | 250 mg/l | 39 % | Mean |
| Sodium | 21,8 mg/l | 200 mg/l | 11 % | Mean |
Show all recorded parameters (24 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Cyanide | <0,0050 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean |
| Fluoride | <0,10 mg/l below limit of quantification | 1.5 mg/l | < 7 % * | Mean |
| Nitrate | 10,2 mg/l | 50 mg/l | 20 % | Mean |
| Nitrite | <0,020 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | 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 (11)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcite dissolution capacity | -4,4 mg/l | 5 mg/l CaCO3 | — | Mean |
| Chloride | 35 mg/l | 250 mg/l | 14 % | Mean |
| Colour | <0,10 m-1 below limit of quantification | 0.5 m⁻¹ | — | 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 |
| pH | 7,93 - | 6,5–9,5 | — | Mean |
| Sodium | 21,8 mg/l | 200 mg/l | 11 % | Mean |
| Sulphate | 97,1 mg/l | 250 mg/l | 39 % | Mean |
| Temperature | 11,40 °C | — | — | Mean |
| Total organic carbon (TOC) | 1,90 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,35 mmol/l | — | — | Mean |
| Base capacity to pH 8.2 | 0,0500 mmol/l | — | — | Mean |
| Calcium | 72,2 mg/l | — | — | Mean |
| Carbonate hardness | 6,85 °dH | — | — | Mean |
| Hardness range (WRMG) | mittel | — | — | Mean |
| Magnesium | 9,37 mg/l | — | — | Mean |
| Potassium | 4,76 mg/l | — | — | Mean |
| Sum of alkaline earth metals | 2,19 mmol/l | — | — | Mean |
| Total hardness | 12,30 °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.
Postcodes in this zone: 46514
Frequently asked questions about drinking water in Schermbeck
- How hard is the water in Schermbeck?
- RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbH publishes a total hardness of 13.5 °dH for the supply zone Dorsten-Holsterhausen (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 11/07/2026.
- How much nitrate is in the drinking water in Schermbeck?
- RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbH publishes a nitrate value of 9,6 mg/l for the supply zone Dorsten-Holsterhausen. 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 11/07/2026.
- Who supplies the drinking water in Schermbeck?
- RWW Rheinisch-Westfälische Wasserwerksgesellschaft mbH. The values shown here come from the supply zone Dorsten-Holsterhausen 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.