Drinking water in 42781
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 5 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.
Dabringhausen (Einspeisung Bergischer Trinkwasserverbund)
Stadtwerke HaanAssigned 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 |
|---|---|---|---|---|
| Sum of PFAS | n.b. 5.) mg/l not determined | — | — | Mean |
| Nitrate | 11,5 mg/l | 50 mg/l | 23 % | Mean |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean |
| Sulphate | 12,9 mg/l | 250 mg/l | 5 % | Mean |
| Sodium | 5,5 mg/l | 200 mg/l | 3 % | 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 (62 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean |
| Intestinal enterococci | 0 Anzahl/100ml | 0/100 ml | — | Mean |
Chemical parameters (31)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0005 mg/l below limit of quantification | 3 µg/l | < 17 % * | Mean |
| Acrylamide | n.e. 4.) mg/l not determined | 0.1 µg/l | — | Mean |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Benzene | <0,000.2 mg/l below limit of quantification | 1 µg/l | — | Mean |
| Benzo(a)pyrene | <0,0000025 mg/l below limit of quantification | 10 ng/l | < 25 % * | Mean |
| Bisphenol A | <0,001 mg/l below limit of quantification | 2.5 µg/l | < 40 % * | Mean |
| Boron | <0,03 mg/l below limit of quantification | 1 mg/l | < 3 % * | Mean |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Mean |
| Cadmium | <0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Mean |
| Chlorate | <0,1 mg/l below limit of quantification | 70 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Mean |
| Chlorite | <0,001 mg/l below limit of quantification | 0.2 mg/l | < 0.5 % * | Mean |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean |
| Copper | <0,001 mg/l below limit of quantification | 2 mg/l | < < 0.1 % * | Mean |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean |
| Epichlorohydrin | n.e. 4.) mg/l not determined | 0.1 µg/l | — | Mean |
| Fluoride | >0,04 mg/l above | 1.5 mg/l | 3 % | Mean |
| Haloacetic acids (HAA) | n.u. 8.) mg/l not determined | — | — | 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 | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Mean |
| Nitrate | 11,5 mg/l | 50 mg/l | 23 % | Mean |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Mean |
| Pesticides | n.b. 5.) mg/l not determined | 0.1 µg/l | — | Mean |
| Pesticides — Total | n.b. 5.) mg/l not determined | 0.5 µg/l | — | Mean |
| Polycyclic aromatic hydrocarbons | n.b. 5.) mg/l not determined | 0.1 µg/l | — | Mean |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Tetrachloroethene and Trichloroethene (sum) | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Trihalomethanes — Total | n.b. 5.) mg/l not determined | 50 µg/l | — | Mean |
| Uranium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Vinyl chloride | <0,0005 mg/l below limit of quantification | 0.5 µg/l | < 100 % * | 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.
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | n.b. 5.) mg/l not determined | — | — | Mean |
| Sum of PFAS | n.b. 5.) mg/l not determined | — | — | Mean |
Indicator parameters (19)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,008 mg/l below limit of quantification | 0.2 mg/l | < 4 % * | Mean |
| Ammonium | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean |
| Calcite dissolution capacity | 1,3 mg/l CaCO3 | 5 mg/l CaCO3 | — | Mean |
| Chloride | 9,9 mg/l | 250 mg/l | 4 % | Mean |
| Clostridium perfringens (including spores) | 0 Anzahl/100 ml | 0/100 ml | — | Mean |
| Coliform bacteria | 0 Anzahl/100 ml | 0/100 ml | — | Mean |
| Colour | <0,1 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean |
| Conductivity (25 °C) | 232 µS/cm | 2,790 µS/cm | — | Mean |
| Iron | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean |
| Manganese | <0,001 mg/l below limit of quantification | 50 µg/l | < 2 % * | Mean |
| Odour | unauffällig - | für den Verbraucher annehmbar | — | Mean |
| Oxidisability | n.e. 4.) mg/l O2 not determined | 5 mg/l O2 | — | Mean |
| pH | 7,93 - | 6,5–9,5 | — | Mean |
| Sodium | 5,5 mg/l | 200 mg/l | 3 % | Mean |
| Sulphate | 12,9 mg/l | 250 mg/l | 5 % | Mean |
| Taste | unauffällig - | für den Verbraucher annehmbar | — | Mean |
| Temperature | 6,1-10,6 °C | — | — | Mean |
| Total organic carbon (TOC) | 0,8 mg/l | ohne anormale Veränderung | — | Mean |
| Turbidity | <0,03 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.
Radiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Indicative dose | n.e. 4.) mSv/a not determined | 0.1 mSv/a | — | Mean |
| Radon-222 | n.e. 4.) Bq/l not determined | 100 Bq/l | — | Mean |
| Tritium | n.e. 4.) Bq/l not determined | 100 Bq/l | — | Mean |
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorine dioxide | <0,05 mg/l below limit of quantification | — | — | Mean |
Further parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 33 mg/l | — | — | Mean |
| Carbonate hardness | 4,5 °d | — | — | Mean |
| Magnesium | 3,5 mg/l | — | — | Mean |
| Potassium | 1,5 mg/l | — | — | Mean |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Show 5 more supply zones in this postcode
Dabringhausen
Eigenbetrieb Wasserversorgung Solingen (EBW)Assigned 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 |
|---|---|---|---|---|
| Sum of PFAS | 0,000.0030 mg/l | — | — | Mean · Dabringhausen |
| Nitrate | 8,2 mg/l | 50 mg/l | 16 % | Mean · Dabringhausen |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Dabringhausen |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Dabringhausen |
| Sulphate | 12,9 mg/l | 250 mg/l | 5 % | Mean · Dabringhausen |
| Sodium | 5,5 mg/l | 200 mg/l | 3 % | Mean · Dabringhausen |
* 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 (65 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Dabringhausen |
| Intestinal enterococci | 0 Anzahl/100ml | 0/100 ml | — | Mean · Dabringhausen |
| Somatic coliphages | n.e. not determined Unit not stated in the document | 50/100 ml UBA guide value | — | Mean · Dabringhausen |
For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.
Chemical parameters (32)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,000.5 mg/l below limit of quantification | 3 µg/l | — | Mean · Dabringhausen |
| Acrylamide | n.e. mg/l not determined | 0.1 µg/l | — | Mean · Dabringhausen |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Dabringhausen |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Dabringhausen |
| Benzene | <0,000.2 mg/l below limit of quantification | 1 µg/l | — | Mean · Dabringhausen |
| Benzo(a)pyrene | <0,000.0025 mg/l below limit of quantification | 10 ng/l | — | Mean · Dabringhausen |
| Bisphenol A | <0,0010 mg/l below limit of quantification | 2.5 µg/l | < 40 % * | Mean · Dabringhausen |
| Boron | <0,03 mg/l below limit of quantification | 1 mg/l | < 3 % * | Mean · Dabringhausen |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Mean · Dabringhausen |
| Cadmium | <0,000.2 mg/l below limit of quantification | 3 µg/l | — | Mean · Dabringhausen |
| Chlorate | <0,04 mg/l below limit of quantification | 70 µg/l | < 57 % * | Mean · Dabringhausen |
| Chlorite | 0,08 mg/l | 0.2 mg/l | 40 % | Mean · Dabringhausen |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean · Dabringhausen |
| Copper | <0,001 mg/l below limit of quantification | 2 mg/l | < < 0.1 % * | Mean · Dabringhausen |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Dabringhausen |
| Epichlorohydrin | n.e. mg/l not determined | 0.1 µg/l | — | Mean · Dabringhausen |
| Fluoride | <0,03 mg/l below limit of quantification | 1.5 mg/l | < 2 % * | Mean · Dabringhausen |
| Haloacetic acids (HAA) | n.u. mg/l not determined | — | — | Mean · Dabringhausen |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Dabringhausen |
| Mercury | <0,000.1 mg/l below limit of quantification | 1 µg/l | — | Mean · Dabringhausen |
| Microcystin-LR | n.u. mg/l not determined | — | — | Mean · Dabringhausen |
| Nickel | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Dabringhausen |
| Nitrate | 8,2 mg/l | 50 mg/l | 16 % | Mean · Dabringhausen |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Mean · Dabringhausen |
| Pesticides | n.b. mg/l not determined | 0.1 µg/l | — | Mean · Dabringhausen |
| Pesticides — Total | n.b. mg/l not determined | 0.5 µg/l | — | Mean · Dabringhausen |
| Polycyclic aromatic hydrocarbons | n.b. mg/l not determined | 0.1 µg/l | — | Mean · Dabringhausen |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Dabringhausen |
| Tetrachloroethene and Trichloroethene (sum) | n.b. mg/l not determined | 10 µg/l | — | Mean · Dabringhausen |
| Trihalomethanes — Total | <0,0020 mg/l below limit of quantification | 50 µg/l | < 4 % * | Mean · Dabringhausen |
| Uranium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Dabringhausen |
| Vinyl chloride | <0,000.50 mg/l below limit of quantification | 0.5 µg/l | — | Mean · Dabringhausen |
* 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 | 0,000.0020 mg/l | — | — | Mean · Dabringhausen |
| Sum of PFAS | 0,000.0030 mg/l | — | — | Mean · Dabringhausen |
Indicator parameters (20)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,008 mg/l below limit of quantification | 0.2 mg/l | < 4 % * | Mean · Dabringhausen |
| Ammonium | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Dabringhausen |
| Calcite dissolution capacity | 1,6 mg/l CaCO3 | 5 mg/l CaCO3 | — | Mean · Dabringhausen |
| Chloride | 8,9 mg/l | 250 mg/l | 4 % | Mean · Dabringhausen |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Dabringhausen |
| Colony count 22 °C | 0-1 /ml | ohne anormale Veränderung | — | Mean · Dabringhausen |
| Colony count 36 °C | 0-2 /ml | ohne anormale Veränderung | — | Mean · Dabringhausen |
| Colour | <0,1 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Dabringhausen |
| Conductivity (25 °C) | 232 µS/cm | 2,790 µS/cm | — | Mean · Dabringhausen |
| Iron | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Dabringhausen |
| Manganese | <0,001 mg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Dabringhausen |
| Odour | unauffällig - | für den Verbraucher annehmbar | — | Mean · Dabringhausen |
| Oxidisability | n.e. mg/l O2 not determined | 5 mg/l O2 | — | Mean · Dabringhausen |
| pH | 7,91 - | 6,5–9,5 | — | Mean · Dabringhausen |
| Sodium | 5,5 mg/l | 200 mg/l | 3 % | Mean · Dabringhausen |
| Sulphate | 12,9 mg/l | 250 mg/l | 5 % | Mean · Dabringhausen |
| Taste | unauffällig - | für den Verbraucher annehmbar | — | Mean · Dabringhausen |
| Temperature | 4,5-11,0 °C | — | — | Mean · Dabringhausen |
| Total organic carbon (TOC) | 1,0 mg/l | ohne anormale Veränderung | — | Mean · Dabringhausen |
| Turbidity | 0,04 Nephelometrische Trübungseinheit (NTU) | 1 NTU | — | Mean · Dabringhausen |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Radiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Indicative dose | n.e. mSv/a not determined | 0.1 mSv/a | — | Mean · Dabringhausen |
| Radon-222 | n.e. Bq/l not determined | 100 Bq/l | — | Mean · Dabringhausen |
| Tritium | n.e. Bq/l not determined | 100 Bq/l | — | Mean · Dabringhausen |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 32 mg/l | — | — | Mean · Dabringhausen |
| Carbonate hardness | 4,2 °d | — | — | Mean · Dabringhausen |
| Magnesium | 3,6 mg/l | — | — | Mean · Dabringhausen |
| Potassium | 1,5 mg/l | — | — | Mean · Dabringhausen |
| Total hardness | 0,28 mmol/l CaCO3 | — | — | Mean · Dabringhausen |
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.
Assigned 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 |
|---|---|---|---|---|
| Sum of PFAS | 0,000.0090 mg/l | — | — | Mean · Glüder |
| Nitrate | 10,3 mg/l | 50 mg/l | 21 % | Mean · Glüder |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Glüder |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Glüder |
| Sulphate | 16,0 mg/l | 250 mg/l | 6 % | Mean · Glüder |
| Sodium | 8,7 mg/l | 200 mg/l | 4 % | Mean · Glüder |
* 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 (65 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Glüder |
| Intestinal enterococci | 0 Anzahl/100ml | 0/100 ml | — | Mean · Glüder |
| Somatic coliphages | 0-1 Unit not stated in the document | 50/100 ml UBA guide value | — | Mean · Glüder |
For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.
Chemical parameters (32)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,000.5 mg/l below limit of quantification | 3 µg/l | — | Mean · Glüder |
| Acrylamide | n.e. mg/l not determined | 0.1 µg/l | — | Mean · Glüder |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Glüder |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Glüder |
| Benzene | <0,000.2 mg/l below limit of quantification | 1 µg/l | — | Mean · Glüder |
| Benzo(a)pyrene | <0,000.0025 mg/l below limit of quantification | 10 ng/l | — | Mean · Glüder |
| Bisphenol A | <0,0010 mg/l below limit of quantification | 2.5 µg/l | < 40 % * | Mean · Glüder |
| Boron | <0,034 mg/l below limit of quantification | 1 mg/l | < 3 % * | Mean · Glüder |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Mean · Glüder |
| Cadmium | <0,000.2 mg/l below limit of quantification | 3 µg/l | — | Mean · Glüder |
| Chlorate | <0,04 mg/l below limit of quantification | 70 µg/l | < 57 % * | Mean · Glüder |
| Chlorite | 0,07 mg/l | 0.2 mg/l | 35 % | Mean · Glüder |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean · Glüder |
| Copper | <0,001 mg/l below limit of quantification | 2 mg/l | < < 0.1 % * | Mean · Glüder |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Glüder |
| Epichlorohydrin | n.e. mg/l not determined | 0.1 µg/l | — | Mean · Glüder |
| Fluoride | <0,04 mg/l below limit of quantification | 1.5 mg/l | < 3 % * | Mean · Glüder |
| Haloacetic acids (HAA) | n.u. mg/l not determined | — | — | Mean · Glüder |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Glüder |
| Mercury | <0,000.1 mg/l below limit of quantification | 1 µg/l | — | Mean · Glüder |
| Microcystin-LR | <0,0001 mg/l below limit of quantification | — | — | Mean · Glüder |
| Nickel | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Glüder |
| Nitrate | 10,3 mg/l | 50 mg/l | 21 % | Mean · Glüder |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Mean · Glüder |
| Pesticides | n.b. mg/l not determined | 0.1 µg/l | — | Mean · Glüder |
| Pesticides — Total | n.b. mg/l not determined | 0.5 µg/l | — | Mean · Glüder |
| Polycyclic aromatic hydrocarbons | n.b. mg/l not determined | 0.1 µg/l | — | Mean · Glüder |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Glüder |
| Tetrachloroethene and Trichloroethene (sum) | n.b. mg/l not determined | 10 µg/l | — | Mean · Glüder |
| Trihalomethanes — Total | <0,0020 mg/l below limit of quantification | 50 µg/l | < 4 % * | Mean · Glüder |
| Uranium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Glüder |
| Vinyl chloride | <0,000.50 mg/l below limit of quantification | 0.5 µg/l | — | Mean · Glüder |
* 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 | 0,000.0040 mg/l | — | — | Mean · Glüder |
| Sum of PFAS | 0,000.0090 mg/l | — | — | Mean · Glüder |
Indicator parameters (20)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,007 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Mean · Glüder |
| Ammonium | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Glüder |
| Calcite dissolution capacity | 1,2 mg/l CaCO3 | 5 mg/l CaCO3 | — | Mean · Glüder |
| Chloride | 16,0 mg/l | 250 mg/l | 6 % | Mean · Glüder |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Glüder |
| Colony count 22 °C | 0 /ml | ohne anormale Veränderung | — | Mean · Glüder |
| Colony count 36 °C | 0-3 /ml | ohne anormale Veränderung | — | Mean · Glüder |
| Colour | <0,1 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Glüder |
| Conductivity (25 °C) | 276 µS/cm | 2,790 µS/cm | — | Mean · Glüder |
| Iron | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Glüder |
| Manganese | <0,001 mg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Glüder |
| Odour | unauffällig - | für den Verbraucher annehmbar | — | Mean · Glüder |
| Oxidisability | n.e. mg/l O2 not determined | 5 mg/l O2 | — | Mean · Glüder |
| pH | 7,94 - | 6,5–9,5 | — | Mean · Glüder |
| Sodium | 8,7 mg/l | 200 mg/l | 4 % | Mean · Glüder |
| Sulphate | 16,0 mg/l | 250 mg/l | 6 % | Mean · Glüder |
| Taste | unauffällig - | für den Verbraucher annehmbar | — | Mean · Glüder |
| Temperature | 4,9-18,6 °C | — | — | Mean · Glüder |
| Total organic carbon (TOC) | 1,1 mg/l | ohne anormale Veränderung | — | Mean · Glüder |
| Turbidity | 0,05 Nephelometrische Trübungseinheit (NTU) | 1 NTU | — | Mean · Glüder |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Radiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Indicative dose | <0,1 mSv/a below limit of quantification | 0.1 mSv/a | — | Mean · Glüder |
| Radon-222 | <10 Bq/l below limit of quantification | 100 Bq/l | — | Mean · Glüder |
| Tritium | n.e. Bq/l not determined | 100 Bq/l | — | Mean · Glüder |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 32 mg/l | — | — | Mean · Glüder |
| Carbonate hardness | 4,1 °d | — | — | Mean · Glüder |
| Magnesium | 4,6 mg/l | — | — | Mean · Glüder |
| Potassium | 1,6 mg/l | — | — | Mean · Glüder |
| Total hardness | 0,33 mmol/l CaCO3 | — | — | Mean · Glüder |
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.
Assigned 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 |
|---|---|---|---|---|
| Sum of PFAS | 0,000.0050 mg/l | — | — | Mean · Schürholz |
| Nitrate | 8,2 mg/l | 50 mg/l | 16 % | Mean · Schürholz |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Schürholz |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Schürholz |
| Sulphate | 12,5 mg/l | 250 mg/l | 5 % | Mean · Schürholz |
| Sodium | 5,6 mg/l | 200 mg/l | 3 % | Mean · Schürholz |
* 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 (65 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Schürholz |
| Intestinal enterococci | 0 Anzahl/100ml | 0/100 ml | — | Mean · Schürholz |
| Somatic coliphages | n.e. not determined Unit not stated in the document | 50/100 ml UBA guide value | — | Mean · Schürholz |
For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.
Chemical parameters (32)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,000.5 mg/l below limit of quantification | 3 µg/l | — | Mean · Schürholz |
| Acrylamide | n.e. mg/l not determined | 0.1 µg/l | — | Mean · Schürholz |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Schürholz |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Schürholz |
| Benzene | <0,000.2 mg/l below limit of quantification | 1 µg/l | — | Mean · Schürholz |
| Benzo(a)pyrene | <0,000.0025 mg/l below limit of quantification | 10 ng/l | — | Mean · Schürholz |
| Bisphenol A | <0,0010 mg/l below limit of quantification | 2.5 µg/l | < 40 % * | Mean · Schürholz |
| Boron | <0,03 mg/l below limit of quantification | 1 mg/l | < 3 % * | Mean · Schürholz |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Mean · Schürholz |
| Cadmium | <0,000.2 mg/l below limit of quantification | 3 µg/l | — | Mean · Schürholz |
| Chlorate | <0,04 mg/l below limit of quantification | 70 µg/l | < 57 % * | Mean · Schürholz |
| Chlorite | 0,1 mg/l | 0.2 mg/l | 50 % | Mean · Schürholz |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean · Schürholz |
| Copper | 0,006 mg/l | 2 mg/l | 0.3 % | Mean · Schürholz |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Schürholz |
| Epichlorohydrin | n.e. mg/l not determined | 0.1 µg/l | — | Mean · Schürholz |
| Fluoride | <0,04 mg/l below limit of quantification | 1.5 mg/l | < 3 % * | Mean · Schürholz |
| Haloacetic acids (HAA) | n.u. mg/l not determined | — | — | Mean · Schürholz |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Schürholz |
| Mercury | <0,000.1 mg/l below limit of quantification | 1 µg/l | — | Mean · Schürholz |
| Microcystin-LR | n.u. mg/l not determined | — | — | Mean · Schürholz |
| Nickel | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Schürholz |
| Nitrate | 8,2 mg/l | 50 mg/l | 16 % | Mean · Schürholz |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Mean · Schürholz |
| Pesticides | n.b. mg/l not determined | 0.1 µg/l | — | Mean · Schürholz |
| Pesticides — Total | n.b. mg/l not determined | 0.5 µg/l | — | Mean · Schürholz |
| Polycyclic aromatic hydrocarbons | n.b. mg/l not determined | 0.1 µg/l | — | Mean · Schürholz |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Schürholz |
| Tetrachloroethene and Trichloroethene (sum) | n.b. mg/l not determined | 10 µg/l | — | Mean · Schürholz |
| Trihalomethanes — Total | <0,0020 mg/l below limit of quantification | 50 µg/l | < 4 % * | Mean · Schürholz |
| Uranium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Schürholz |
| Vinyl chloride | <0,000.50 mg/l below limit of quantification | 0.5 µg/l | — | Mean · Schürholz |
* 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 | n.b. mg/l not determined | — | — | Mean · Schürholz |
| Sum of PFAS | 0,000.0050 mg/l | — | — | Mean · Schürholz |
Indicator parameters (20)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,007 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Mean · Schürholz |
| Ammonium | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Schürholz |
| Calcite dissolution capacity | -0,6 mg/l CaCO3 | 5 mg/l CaCO3 | — | Mean · Schürholz |
| Chloride | 10,2 mg/l | 250 mg/l | 4 % | Mean · Schürholz |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Schürholz |
| Colony count 22 °C | 0 /ml | ohne anormale Veränderung | — | Mean · Schürholz |
| Colony count 36 °C | 0 /ml | ohne anormale Veränderung | — | Mean · Schürholz |
| Colour | <0,1 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Schürholz |
| Conductivity (25 °C) | 195 µS/cm | 2,790 µS/cm | — | Mean · Schürholz |
| Iron | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Schürholz |
| Manganese | <0,001 mg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Schürholz |
| Odour | unauffällig - | für den Verbraucher annehmbar | — | Mean · Schürholz |
| Oxidisability | n.e. mg/l O2 not determined | 5 mg/l O2 | — | Mean · Schürholz |
| pH | 8,23 - | 6,5–9,5 | — | Mean · Schürholz |
| Sodium | 5,6 mg/l | 200 mg/l | 3 % | Mean · Schürholz |
| Sulphate | 12,5 mg/l | 250 mg/l | 5 % | Mean · Schürholz |
| Taste | unauffällig - | für den Verbraucher annehmbar | — | Mean · Schürholz |
| Temperature | 6,4-19,5 °C | — | — | Mean · Schürholz |
| Total organic carbon (TOC) | 1,0 mg/l | ohne anormale Veränderung | — | Mean · Schürholz |
| Turbidity | 0,04 Nephelometrische Trübungseinheit (NTU) | 1 NTU | — | Mean · Schürholz |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Radiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Indicative dose | n.e. mSv/a not determined | 0.1 mSv/a | — | Mean · Schürholz |
| Radon-222 | n.e. Bq/l not determined | 100 Bq/l | — | Mean · Schürholz |
| Tritium | n.e. Bq/l not determined | 100 Bq/l | — | Mean · Schürholz |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 28 mg/l | — | — | Mean · Schürholz |
| Carbonate hardness | 3,6 °d | — | — | Mean · Schürholz |
| Magnesium | 3,6 mg/l | — | — | Mean · Schürholz |
| Potassium | 1,5 mg/l | — | — | Mean · Schürholz |
| Total hardness | 0,27 mmol/l CaCO3 | — | — | Mean · Schürholz |
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.
Glüder / Schürholz / Dabringhausen (Ringleitungssystem Solingen)
Eigenbetrieb Wasserversorgung Solingen (EBW)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
No core values are available for this zone yet.
Solingen (Wasserwerke Glüder, Schürholz, Dabringhausen)
Eigenbetrieb Wasserversorgung Solingen (EBW)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
No core values are available for this zone yet.
Frequent questions about postcode 42781
- How much nitrate is in the drinking water in Postcode 42781?
- Stadtwerke Haan publishes a nitrate value of 11,5 mg/l for the supply zone Dabringhausen (Einspeisung Bergischer Trinkwasserverbund). The statutory parametric value is 50 mg/l; the measured value represents 23 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Who supplies the drinking water in Postcode 42781?
- Stadtwerke Haan. The values shown here come from the supply zone Dabringhausen (Einspeisung Bergischer Trinkwasserverbund) 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.