Drinking water in 41236
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 11 underneath.
How to read the share of the parametric value
12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.
< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.
Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.
Wasserwerk Viersen, Aachener Weg 21, 41747 Viersen
NEW NiederrheinWasser GmbHAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
13 °dH
Hardness range medium
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 28,1 mg/l | 50 mg/l | 56 % | Single value |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Sulphate | 125,8 mg/l | 250 mg/l | 50 % | Single value |
Show all recorded parameters (101 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Single value |
Chemical parameters (71)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,1,1-Trichloroethane | <0,2 µg/l below limit of quantification | — | — | Single value |
| 1,2-dichloroethane | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Single value |
| Acrylamide | <0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Single value |
| AMPA | <0,03 µg/l below limit of quantification | — | — | Single value |
| Atrazine | 0,01 µg/l | — | — | Single value |
| Bentazone | <0,02 µg/l below limit of quantification | — | — | Single value |
| Benzene | <0,20 µg/l below limit of quantification | 1 µg/l | < 20 % * | Single value |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Benzo(b)fluoranthene | <0,005 µg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,005 µg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,005 µg/l below limit of quantification | — | — | Single value |
| Bisphenol A | <0,01 µg/l below limit of quantification | 2.5 µg/l | < 0.4 % * | Single value |
| Bromacil | <0,03 µg/l below limit of quantification | — | — | Single value |
| Bromate | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Bromodichloromethane | <0,2 µg/l below limit of quantification | — | — | Single value |
| Bromoxynil | <0,03 µg/l below limit of quantification | — | — | Single value |
| Carbofuran | <0,03 µg/l below limit of quantification | — | — | Single value |
| Chloridazon | <0,02 µg/l below limit of quantification | — | — | Single value |
| Chlorotoluron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Chromium | <0,5 µg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| cis-1,2-Dichloroethene | <1,0 µg/l below limit of quantification | — | — | Single value |
| Copper | <10 µg/l below limit of quantification | 2 mg/l | < 0.5 % * | Single value |
| Cyanide | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| Desethylatrazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Dibromochloromethane | <0,2 µg/l below limit of quantification | — | — | Single value |
| Dichloromethane | <0,3 µg/l below limit of quantification | — | — | Single value |
| Dichlorprop | <0,02 µg/l below limit of quantification | — | — | Single value |
| Diflufenican | <0,02 µg/l below limit of quantification | — | — | Single value |
| Dimethenamid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Diuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Epichlorohydrin | <0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Single value |
| Ethidimuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Ethofumesate | <0,02 µg/l below limit of quantification | — | — | Single value |
| Flufenacet | <0,03 µg/l below limit of quantification | — | — | Single value |
| Fluoranthene | <0,005 µg/l below limit of quantification | — | — | Single value |
| Fluoride | <0,100 mg/l below limit of quantification | 1.5 mg/l | < 7 % * | Single value |
| Glyphosate | <0,03 µg/l below limit of quantification | — | — | Single value |
| Hexazinone | <0,03 µg/l below limit of quantification | — | — | Single value |
| Imidacloprid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Isoproturon | <0,03 µg/l below limit of quantification | — | — | Single value |
| Lenacil | <0,03 µg/l below limit of quantification | — | — | Single value |
| MCPA | <0,03 µg/l below limit of quantification | — | — | Single value |
| Mecoprop | <0,02 µg/l below limit of quantification | — | — | Single value |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Metalaxyl | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metamitron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metazachlor | <0,03 µg/l below limit of quantification | — | — | Single value |
| Methabenzthiazuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metobromuron | <0,02 µg/l below limit of quantification | — | — | Single value |
| Metribuzin | <0,02 µg/l below limit of quantification | — | — | Single value |
| Monuron | <0,02 µg/l below limit of quantification | — | — | Single value |
| Nicosulfuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Nitrate | 28,1 mg/l | 50 mg/l | 56 % | Single value |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Pendimethalin | <0,02 µg/l below limit of quantification | — | — | Single value |
| Propazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Propiconazole | <0,03 µg/l below limit of quantification | — | — | Single value |
| Prosulfocarb | <0,03 µg/l below limit of quantification | — | — | Single value |
| Quinmerac | <0,02 µg/l below limit of quantification | — | — | Single value |
| Simazine | <0,01 µg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Terbutryn | <0,02 µg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,20 µg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene and Trichloroethene (sum) | <1,0 µg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Tetrachloromethane | <0,2 µg/l below limit of quantification | — | — | Single value |
| Tribromomethane (bromoform) | <0,3 µg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,2 µg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | <0,2 µg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | <0,1 µg/l below limit of quantification | 50 µg/l | < 0.2 % * | Single value |
| Vinyl chloride | <0,1 µg/l below limit of quantification | 0.5 µg/l | < 20 % * | 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.
PFAS (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| HFPO-DA (GenX) | <0,0010 µg/l below limit of quantification | — | — | Single value |
Metabolites (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Desphenyl-chloridazon | 1,60 µg/l | — | — | Single value |
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <10 µg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Ammonium | 0,055 mg/l | 0.5 mg/l | 11 % | Single value |
| Calcite dissolution capacity | 3,5 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 44,5 mg/l | 250 mg/l | 18 % | Single value |
| Coliform bacteria | 0 KBE/100ml | 0/100 ml | — | Single value |
| Colour | 0 Unit not stated in the document | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 532 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | 0,013 mg/l | 0.2 mg/l | 6 % | Single value |
| Manganese | 0,002 mg/l | 50 µg/l | 4 % | Single value |
| Odour | 00 | für den Verbraucher annehmbar | — | Single value |
| Oxidisability | 0,38 mg/l | 5 mg/l O2 | — | Single value |
| pH | 7,54 | 6,5–9,5 | — | Single value |
| Sulphate | 125,8 mg/l | 250 mg/l | 50 % | Single value |
| Temperature | 11,4 °C | — | — | Single value |
| Total organic carbon (TOC) | 0,58 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,18 NTU | 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 |
|---|---|---|---|---|
| Calcium | 64,4 mg/l | — | — | Single value |
| Carbonate hardness | 3,4 °dH | — | — | Single value |
| Free carbon dioxide | 2,6 mg/l | — | — | Single value |
| Hydrogen carbonate | 75,1 mg/l | — | — | Single value |
| Non-carbonate hardness | 9,6 °dH | — | — | Single value |
| Oxygen | 11,0 mg/l | — | — | Single value |
| Phosphate | <0,05 mg/l below limit of quantification | — | — | Single value |
| Potassium | 3,8 mg/l | — | — | Single value |
| Saturation index | -0,341 | — | — | Single value |
| Total hardness | 13,0 °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.
Source: https://www.new.de/mediathek/WW102REIN_2025-10-06.pdf · 23.02.2026 · 06.10.2025 · retrieved on 11/07/2026
Show 11 more supply zones in this postcode
Wasserwerk Driesch
GrevenbroichAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
12.5 °dH
Hardness range mittel
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,000002 mg/l | — | — | Mean · Wasserwerk Driesch |
| Nitrate | 23,65 mg/l | 50 mg/l | 47 % | Mean · Wasserwerk Driesch |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Driesch |
| Sulphate | 97 mg/l | 250 mg/l | 39 % | Mean · Wasserwerk Driesch |
| Sodium | 37,7 mg/l | 200 mg/l | 19 % | Mean · Wasserwerk Driesch |
* 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 (51 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Driesch |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,10 µg/l below limit of quantification | 3 µg/l | < 3 % * | Mean · Wasserwerk Driesch |
| Acrylamide | < 0,00003 mg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Driesch |
| Antimony | < 0,0010 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Wasserwerk Driesch |
| Arsenic | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Wasserwerk Driesch |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Driesch |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Mean · Wasserwerk Driesch |
| Bisphenol A | < 0,000008 mg/l below limit of quantification | 2.5 µg/l | < 0.3 % * | Mean · Wasserwerk Driesch |
| Boron | 0,04 mg/l | 1 mg/l | 4 % | Mean · Wasserwerk Driesch |
| Bromate | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Driesch |
| Cadmium | < 0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Mean · Wasserwerk Driesch |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean · Wasserwerk Driesch |
| Copper | 0,002 mg/l | 2 mg/l | 0.1 % | Mean · Wasserwerk Driesch |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Wasserwerk Driesch |
| Epichlorohydrin | < 0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Driesch |
| Fluoride | 0,07 mg/l | 1.5 mg/l | 5 % | Mean · Wasserwerk Driesch |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Driesch |
| Mercury | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Driesch |
| Nickel | 0,002 mg/l | 20 µg/l | 10 % | Mean · Wasserwerk Driesch |
| Nitrate | 23,65 mg/l | 50 mg/l | 47 % | Mean · Wasserwerk Driesch |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Driesch |
| Selenium | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Wasserwerk Driesch |
| Tetrachloroethene and Trichloroethene (sum) | 0,00004 mg/l | 10 µg/l | 0.4 % | Mean · Wasserwerk Driesch |
| Uranium | 0,0040 mg/l | 10 µg/l | 40 % | Mean · Wasserwerk Driesch |
| Vinyl chloride | < 0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Wasserwerk Driesch |
* 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 mg/l | — | — | Mean · Wasserwerk Driesch |
| Sum of PFAS | 0,000002 mg/l | — | — | Mean · Wasserwerk Driesch |
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Wasserwerk Driesch |
| Ammonium | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Driesch |
| Calcite dissolution capacity | -0,60 mg/l | 5 mg/l CaCO3 | — | Mean · Wasserwerk Driesch |
| Chloride | 46,1 mg/l | 250 mg/l | 18 % | Mean · Wasserwerk Driesch |
| Coliform bacteria | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Driesch |
| Colour | < 0,10 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Wasserwerk Driesch |
| Conductivity (25 °C) | 633 µS/cm | 2,790 µS/cm | — | Mean · Wasserwerk Driesch |
| Iron | < 0,006 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Mean · Wasserwerk Driesch |
| Odour | ohne annehb. u. ohne Veränderung | für den Verbraucher annehmbar | — | Mean · Wasserwerk Driesch |
| pH | 7,74 pH- | 6,5–9,5 | — | Mean · Wasserwerk Driesch |
| Sodium | 37,7 mg/l | 200 mg/l | 19 % | Mean · Wasserwerk Driesch |
| Sulphate | 97 mg/l | 250 mg/l | 39 % | Mean · Wasserwerk Driesch |
| Taste | ohne | für den Verbraucher annehmbar | — | Mean · Wasserwerk Driesch |
| Temperature | 13,0 °C | — | — | Mean · Wasserwerk Driesch |
| Total organic carbon (TOC) | 1,0 | ohne anormale Veränderung | — | Mean · Wasserwerk Driesch |
| Turbidity | < 0,1 nephelometrische Trübungseinheiten (NTU) below limit of quantification | 1 NTU | — | Mean · Wasserwerk Driesch |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,68 mmol/l | — | — | Mean · Wasserwerk Driesch |
| Calcium | 60 mg/l | — | — | Mean · Wasserwerk Driesch |
| Carbonate hardness | 7,49 °dH | — | — | Mean · Wasserwerk Driesch |
| Hardness range (WRMG) | mittel | — | — | Mean · Wasserwerk Driesch |
| Magnesium | 18 mg/l | — | — | Mean · Wasserwerk Driesch |
| Phosphate | 1,2 mg/l | — | — | Mean · Wasserwerk Driesch |
| Potassium | 4,8 mg/l | — | — | Mean · Wasserwerk Driesch |
| Total hardness | 2,22 mmol/l | — | — | Mean · Wasserwerk Driesch |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Source: https://www.kw-gv.de/wasser/trinkwasseranalyse · Mittelwerte aus dem Jahr 2025 · retrieved on 11/07/2026
Wasserwerk Fürth
GrevenbroichAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
16.7 °dH
Hardness range hart
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 mg/l | — | — | Mean · Wasserwerk Fürth |
| Nitrate | 1,55 mg/l | 50 mg/l | 3 % | Mean · Wasserwerk Fürth |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Fürth |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Mean · Wasserwerk Fürth |
| Sodium | 9,8 mg/l | 200 mg/l | 5 % | Mean · Wasserwerk Fürth |
* 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 (51 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Fürth |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,10 µg/l below limit of quantification | 3 µg/l | < 3 % * | Mean · Wasserwerk Fürth |
| Acrylamide | < 0,00003 mg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Fürth |
| Antimony | < 0,0013 mg/l below limit of quantification | 5 µg/l | < 26 % * | Mean · Wasserwerk Fürth |
| Arsenic | < 0,0009 mg/l below limit of quantification | 10 µg/l | < 9 % * | Mean · Wasserwerk Fürth |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Fürth |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Mean · Wasserwerk Fürth |
| Bisphenol A | < 0,00008 mg/l below limit of quantification | 2.5 µg/l | < 3 % * | Mean · Wasserwerk Fürth |
| Boron | 0,05 mg/l | 1 mg/l | 5 % | Mean · Wasserwerk Fürth |
| Bromate | < 0,004 mg/l below limit of quantification | 10 µg/l | < 40 % * | Mean · Wasserwerk Fürth |
| Cadmium | < 0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Mean · Wasserwerk Fürth |
| Chromium | < 0,0008 mg/l below limit of quantification | 25 µg/l | < 3 % * | Mean · Wasserwerk Fürth |
| Copper | 0,043 mg/l | 2 mg/l | 2 % | Mean · Wasserwerk Fürth |
| Cyanide | < 0,013 mg/l below limit of quantification | 50 µg/l | < 26 % * | Mean · Wasserwerk Fürth |
| Epichlorohydrin | < 0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Fürth |
| Fluoride | 0,34 mg/l | 1.5 mg/l | 23 % | Mean · Wasserwerk Fürth |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Fürth |
| Mercury | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Fürth |
| Nickel | < 0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Mean · Wasserwerk Fürth |
| Nitrate | 1,55 mg/l | 50 mg/l | 3 % | Mean · Wasserwerk Fürth |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Fürth |
| Selenium | < 0,0020 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Fürth |
| Tetrachloroethene and Trichloroethene (sum) | 0 mg/l | 10 µg/l | 0 % | Mean · Wasserwerk Fürth |
| Uranium | < 0,0001 mg/l below limit of quantification | 10 µg/l | < 1 % * | Mean · Wasserwerk Fürth |
| Vinyl chloride | < 0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Wasserwerk Fürth |
* 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 mg/l | — | — | Mean · Wasserwerk Fürth |
| Sum of PFAS | 0 mg/l | — | — | Mean · Wasserwerk Fürth |
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,03 mg/l below limit of quantification | 0.2 mg/l | < 15 % * | Mean · Wasserwerk Fürth |
| Ammonium | < 0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Mean · Wasserwerk Fürth |
| Calcite dissolution capacity | -6,13 mg/l | 5 mg/l CaCO3 | — | Mean · Wasserwerk Fürth |
| Chloride | 15,3 mg/l | 250 mg/l | 6 % | Mean · Wasserwerk Fürth |
| Coliform bacteria | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Fürth |
| Colour | < 0,10 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Wasserwerk Fürth |
| Conductivity (25 °C) | 597 µS/cm | 2,790 µS/cm | — | Mean · Wasserwerk Fürth |
| Iron | < 0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Wasserwerk Fürth |
| Odour | ohne annehb. u. ohne Veränderung | für den Verbraucher annehmbar | — | Mean · Wasserwerk Fürth |
| pH | 7,29 pH- | 6,5–9,5 | — | Mean · Wasserwerk Fürth |
| Sodium | 9,8 mg/l | 200 mg/l | 5 % | Mean · Wasserwerk Fürth |
| Sulphate | 50 mg/l | 250 mg/l | 20 % | Mean · Wasserwerk Fürth |
| Taste | ohne | für den Verbraucher annehmbar | — | Mean · Wasserwerk Fürth |
| Temperature | 14,5 °C | — | — | Mean · Wasserwerk Fürth |
| Total organic carbon (TOC) | 1,0 | ohne anormale Veränderung | — | Mean · Wasserwerk Fürth |
| Turbidity | 0,1 nephelometrische Trübungseinheiten (NTU) | 1 NTU | — | Mean · Wasserwerk Fürth |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 5,02 mmol/l | — | — | Mean · Wasserwerk Fürth |
| Calcium | 89 mg/l | — | — | Mean · Wasserwerk Fürth |
| Carbonate hardness | 14,00 °dH | — | — | Mean · Wasserwerk Fürth |
| Hardness range (WRMG) | hart | — | — | Mean · Wasserwerk Fürth |
| Magnesium | 18 mg/l | — | — | Mean · Wasserwerk Fürth |
| Phosphate | < 0,1 mg/l below limit of quantification | — | — | Mean · Wasserwerk Fürth |
| Potassium | 5,1 mg/l | — | — | Mean · Wasserwerk Fürth |
| Total hardness | 2,98 mmol/l | — | — | Mean · Wasserwerk Fürth |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Source: https://www.kw-gv.de/wasser/trinkwasseranalyse · Mittelwerte aus dem Jahr 2025 · retrieved on 11/07/2026
Wasserwerk Mühlenbusch
GrevenbroichAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
12.4 °dH
Hardness range mittel
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,000002 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Nitrate | 19,18 mg/l | 50 mg/l | 38 % | Mean · Wasserwerk Mühlenbusch |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Mühlenbusch |
| Sulphate | 107 mg/l | 250 mg/l | 43 % | Mean · Wasserwerk Mühlenbusch |
| Sodium | 31,1 mg/l | 200 mg/l | 16 % | Mean · Wasserwerk Mühlenbusch |
* 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 (51 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Mühlenbusch |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,10 µg/l below limit of quantification | 3 µg/l | < 3 % * | Mean · Wasserwerk Mühlenbusch |
| Acrylamide | < 0,00003 mg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Mühlenbusch |
| Antimony | < 0,0010 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Wasserwerk Mühlenbusch |
| Arsenic | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Wasserwerk Mühlenbusch |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Mühlenbusch |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Mean · Wasserwerk Mühlenbusch |
| Bisphenol A | < 0,000008 mg/l below limit of quantification | 2.5 µg/l | < 0.3 % * | Mean · Wasserwerk Mühlenbusch |
| Boron | 0,04 mg/l | 1 mg/l | 4 % | Mean · Wasserwerk Mühlenbusch |
| Bromate | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Mühlenbusch |
| Cadmium | < 0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Mean · Wasserwerk Mühlenbusch |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean · Wasserwerk Mühlenbusch |
| Copper | 0,064 mg/l | 2 mg/l | 3 % | Mean · Wasserwerk Mühlenbusch |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Wasserwerk Mühlenbusch |
| Epichlorohydrin | < 0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Mühlenbusch |
| Fluoride | 0,08 mg/l | 1.5 mg/l | 5 % | Mean · Wasserwerk Mühlenbusch |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Mühlenbusch |
| Mercury | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Mühlenbusch |
| Nickel | < 0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Mean · Wasserwerk Mühlenbusch |
| Nitrate | 19,18 mg/l | 50 mg/l | 38 % | Mean · Wasserwerk Mühlenbusch |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Mühlenbusch |
| Selenium | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Wasserwerk Mühlenbusch |
| Tetrachloroethene and Trichloroethene (sum) | 0 mg/l | 10 µg/l | 0 % | Mean · Wasserwerk Mühlenbusch |
| Uranium | 0,0009 mg/l | 10 µg/l | 9 % | Mean · Wasserwerk Mühlenbusch |
| Vinyl chloride | < 0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Wasserwerk Mühlenbusch |
* 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 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Sum of PFAS | 0,000002 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Wasserwerk Mühlenbusch |
| Ammonium | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Mühlenbusch |
| Calcite dissolution capacity | 0,83 mg/l | 5 mg/l CaCO3 | — | Mean · Wasserwerk Mühlenbusch |
| Chloride | 26,1 mg/l | 250 mg/l | 10 % | Mean · Wasserwerk Mühlenbusch |
| Coliform bacteria | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Mühlenbusch |
| Colour | < 0,10 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Wasserwerk Mühlenbusch |
| Conductivity (25 °C) | 582 µS/cm | 2,790 µS/cm | — | Mean · Wasserwerk Mühlenbusch |
| Iron | < 0,006 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Mean · Wasserwerk Mühlenbusch |
| Odour | ohne annehb. u. ohne Veränderung | für den Verbraucher annehmbar | — | Mean · Wasserwerk Mühlenbusch |
| pH | 7,70 pH- | 6,5–9,5 | — | Mean · Wasserwerk Mühlenbusch |
| Sodium | 31,1 mg/l | 200 mg/l | 16 % | Mean · Wasserwerk Mühlenbusch |
| Sulphate | 107 mg/l | 250 mg/l | 43 % | Mean · Wasserwerk Mühlenbusch |
| Taste | ohne | für den Verbraucher annehmbar | — | Mean · Wasserwerk Mühlenbusch |
| Temperature | 12,0 °C | — | — | Mean · Wasserwerk Mühlenbusch |
| Total organic carbon (TOC) | 1,4 | ohne anormale Veränderung | — | Mean · Wasserwerk Mühlenbusch |
| Turbidity | 0,4 nephelometrische Trübungseinheiten (NTU) | 1 NTU | — | Mean · Wasserwerk Mühlenbusch |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,70 mmol/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Calcium | 61 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Carbonate hardness | 7,55 °dH | — | — | Mean · Wasserwerk Mühlenbusch |
| Hardness range (WRMG) | mittel | — | — | Mean · Wasserwerk Mühlenbusch |
| Magnesium | 17 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Phosphate | 0,6 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Potassium | 3,3 mg/l | — | — | Mean · Wasserwerk Mühlenbusch |
| Total hardness | 2,21 mmol/l | — | — | Mean · Wasserwerk Mühlenbusch |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Source: https://www.kw-gv.de/wasser/trinkwasseranalyse · Mittelwerte aus dem Jahr 2025 · retrieved on 11/07/2026
Wasserwerk Wickrath
GrevenbroichAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
14.4 °dH
Hardness range hart
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 mg/l | — | — | Mean · Wasserwerk Wickrath |
| Nitrate | < 1,0 mg/l below limit of quantification | 50 mg/l | < 2 % * | Mean · Wasserwerk Wickrath |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Wickrath |
| Sulphate | 55 mg/l | 250 mg/l | 22 % | Mean · Wasserwerk Wickrath |
| Sodium | 8,9 mg/l | 200 mg/l | 4 % | Mean · Wasserwerk Wickrath |
* 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 (51 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Wickrath |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,10 µg/l below limit of quantification | 3 µg/l | < 3 % * | Mean · Wasserwerk Wickrath |
| Acrylamide | < 0,00003 mg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Wickrath |
| Antimony | < 0,0010 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Wasserwerk Wickrath |
| Arsenic | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Wasserwerk Wickrath |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Wickrath |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Mean · Wasserwerk Wickrath |
| Bisphenol A | < 0,000008 mg/l below limit of quantification | 2.5 µg/l | < 0.3 % * | Mean · Wasserwerk Wickrath |
| Boron | 0,03 mg/l | 1 mg/l | 3 % | Mean · Wasserwerk Wickrath |
| Bromate | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Wickrath |
| Cadmium | < 0,0002 mg/l below limit of quantification | 3 µg/l | < 7 % * | Mean · Wasserwerk Wickrath |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Mean · Wasserwerk Wickrath |
| Copper | 0,056 mg/l | 2 mg/l | 3 % | Mean · Wasserwerk Wickrath |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Wasserwerk Wickrath |
| Epichlorohydrin | < 0,03 µg/l below limit of quantification | 0.1 µg/l | < 30 % * | Mean · Wasserwerk Wickrath |
| Fluoride | 0,18 mg/l | 1.5 mg/l | 12 % | Mean · Wasserwerk Wickrath |
| Lead | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Wasserwerk Wickrath |
| Mercury | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Wasserwerk Wickrath |
| Nickel | < 0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Mean · Wasserwerk Wickrath |
| Nitrate | < 1,0 mg/l below limit of quantification | 50 mg/l | < 2 % * | Mean · Wasserwerk Wickrath |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Wickrath |
| Selenium | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Wasserwerk Wickrath |
| Tetrachloroethene and Trichloroethene (sum) | 0 mg/l | 10 µg/l | 0 % | Mean · Wasserwerk Wickrath |
| Uranium | < 0,0001 mg/l below limit of quantification | 10 µg/l | < 1 % * | Mean · Wasserwerk Wickrath |
| Vinyl chloride | < 0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Wasserwerk Wickrath |
* 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 mg/l | — | — | Mean · Wasserwerk Wickrath |
| Sum of PFAS | 0 mg/l | — | — | Mean · Wasserwerk Wickrath |
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Wasserwerk Wickrath |
| Ammonium | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Wasserwerk Wickrath |
| Calcite dissolution capacity | -11,00 mg/l | 5 mg/l CaCO3 | — | Mean · Wasserwerk Wickrath |
| Chloride | 19,1 mg/l | 250 mg/l | 8 % | Mean · Wasserwerk Wickrath |
| Coliform bacteria | 0 Anz./100ml | 0/100 ml | — | Mean · Wasserwerk Wickrath |
| Colour | < 0,10 m -1 below limit of quantification | 0.5 m⁻¹ | — | Mean · Wasserwerk Wickrath |
| Conductivity (25 °C) | 528 µS/cm | 2,790 µS/cm | — | Mean · Wasserwerk Wickrath |
| Iron | <0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean · Wasserwerk Wickrath |
| Odour | ohne annehb. u. ohne Veränderung | für den Verbraucher annehmbar | — | Mean · Wasserwerk Wickrath |
| pH | 7,63 pH- | 6,5–9,5 | — | Mean · Wasserwerk Wickrath |
| Sodium | 8,9 mg/l | 200 mg/l | 4 % | Mean · Wasserwerk Wickrath |
| Sulphate | 55 mg/l | 250 mg/l | 22 % | Mean · Wasserwerk Wickrath |
| Taste | ohne | für den Verbraucher annehmbar | — | Mean · Wasserwerk Wickrath |
| Temperature | 12,6 °C | — | — | Mean · Wasserwerk Wickrath |
| Total organic carbon (TOC) | 0,6 | ohne anormale Veränderung | — | Mean · Wasserwerk Wickrath |
| Turbidity | < 0,1 nephelometrische Trübungseinheiten (NTU) below limit of quantification | 1 NTU | — | Mean · Wasserwerk Wickrath |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,94 mmol/l | — | — | Mean · Wasserwerk Wickrath |
| Calcium | 81 mg/l | — | — | Mean · Wasserwerk Wickrath |
| Carbonate hardness | 11,05 °dH | — | — | Mean · Wasserwerk Wickrath |
| Hardness range (WRMG) | hart | — | — | Mean · Wasserwerk Wickrath |
| Magnesium | 13 mg/l | — | — | Mean · Wasserwerk Wickrath |
| Phosphate | n.a. mg/l not detectable | — | — | Mean · Wasserwerk Wickrath |
| Potassium | 2,7 mg/l | — | — | Mean · Wasserwerk Wickrath |
| Total hardness | 2,57 mmol/l | — | — | Mean · Wasserwerk Wickrath |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Source: https://www.kw-gv.de/wasser/trinkwasseranalyse · Mittelwerte aus dem Jahr 2025 · retrieved on 11/07/2026
WW Rasseln 003
NEW NiederrheinWasser GmbHAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
12.1 °dH
Hardness range medium
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 36,6 mg/l | 50 mg/l | 73 % | Single value |
Show all recorded parameters (7 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 36,6 mg/l | 50 mg/l | 73 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,43 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | < 0,025 Bq/l below limit of quantification | — | — | Single value |
| Indicative dose | < 0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 66,4 mg/l | — | — | Single value |
| Magnesium | 12,2 mg/l | — | — | Single value |
| Total hardness | 12,1 °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.
Source: https://trinkwasseranalyse.new.de/ · 20.01.2026 · retrieved on 11/07/2026
WW Dülken 101
NEW NiederrheinWasser 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 | 32,5 mg/l | 50 mg/l | 65 % | Single value |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 32,5 mg/l | 50 mg/l | 65 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,82 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | < 0,025 Bq/l below limit of quantification | — | — | Single value · 09/2016 - 06/2017 (Erstuntersuchung) |
| Indicative dose | < 0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value · 09/2016 - 06/2017 (Erstuntersuchung) |
Further parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 60,1 mg/l | — | — | Single value |
| Magnesium | 15,1 mg/l | — | — | 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.
Source: https://trinkwasseranalyse.new.de/ · 13.01.2026 · retrieved on 11/07/2026
WW Gatzweiler 009
NEW NiederrheinWasser 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 | 22,2 mg/l | 50 mg/l | 44 % | Single value |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 22,2 mg/l | 50 mg/l | 44 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,98 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | < 0,025 Bq/l below limit of quantification | — | — | Single value |
| Indicative dose | < 0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value |
Further parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 69,4 mg/l | — | — | Single value |
| Magnesium | 10,6 mg/l | — | — | 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.
Source: https://trinkwasseranalyse.new.de/ · 07.01.2026 · retrieved on 11/07/2026
WW Helenabrunn 001
NEW NiederrheinWasser 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 | 18,4 mg/l | 50 mg/l | 37 % | Single value |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 18,4 mg/l | 50 mg/l | 37 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,97 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | <0,025 Bg/l below limit of quantification | — | — | Single value · Ergebnisse der Erstuntersuchungen 09/2016 - 06/2017 |
| Indicative dose | <0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value · Ergebnisse der Erstuntersuchungen 09/2016 - 06/2017 |
Further parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 77,9 mg/l | — | — | Single value |
| Magnesium | 12,8 mg/l | — | — | 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.
Source: https://trinkwasseranalyse.new.de/ · vom 20.01.2026 · retrieved on 11/07/2026
WW Hoppbruch 013
NEW NiederrheinWasser 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 | 7,1 mg/l | 50 mg/l | 14 % | Single value |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 7,1 mg/l | 50 mg/l | 14 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,65 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | < 0,025 Bq/l below limit of quantification | — | — | Single value |
| Indicative dose | < 0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value |
Further parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 63,9 mg/l | — | — | Single value |
| Magnesium | 17,2 mg/l | — | — | 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.
Source: https://trinkwasseranalyse.new.de/ · 06.01.2026 · retrieved on 11/07/2026
WW Reststrauch 011
NEW NiederrheinWasser 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 | 5,6 mg/l | 50 mg/l | 11 % | Single value |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 5,6 mg/l | 50 mg/l | 11 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,56 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | < 0,025 Bq/l below limit of quantification | — | — | Single value |
| Indicative dose | < 0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value |
Further parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 85,1 mg/l | — | — | Single value |
| Magnesium | 13,0 mg/l | — | — | 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.
Source: https://trinkwasseranalyse.new.de/ · 06.01.2026 · retrieved on 11/07/2026
WW Viersen 102
NEW NiederrheinWasser 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 | 28,6 mg/l | 50 mg/l | 57 % | Single value |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 28,6 mg/l | 50 mg/l | 57 % | Single value |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,68 | 6,5–9,5 | — | Single value |
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | < 0,025 Bq/l below limit of quantification | — | — | Single value |
| Indicative dose | < 0,100 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value |
Further parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 64,4 mg/l | — | — | Single value |
| Magnesium | 15,7 mg/l | — | — | 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.
Source: https://trinkwasseranalyse.new.de/ · vom 13.01.2026 · retrieved on 11/07/2026
Frequent questions about postcode 41236
- How hard is the water in Postcode 41236?
- NEW NiederrheinWasser GmbH publishes a total hardness of 13 °dH for the supply zone Wasserwerk Viersen, Aachener Weg 21, 41747 Viersen (hardness range medium). 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: 23.02.2026, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Postcode 41236?
- NEW NiederrheinWasser GmbH publishes a nitrate value of 28,1 mg/l for the supply zone Wasserwerk Viersen, Aachener Weg 21, 41747 Viersen. The statutory parametric value is 50 mg/l; the measured value represents 56 % of the parametric value. Basis: 23.02.2026, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 41236?
- NEW NiederrheinWasser GmbH. The values shown here come from the supply zone Wasserwerk Viersen, Aachener Weg 21, 41747 Viersen 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.