Drinking water in Sonsbeck
One supply zone, water supplier: KWW GmbH - Kommunales Wasserwerk.
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.
rheinberg gesamt
KWW GmbH - Kommunales WasserwerkAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
12,6
Hardness range mittel
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,000 | — | — | Single value |
| Nitrate | 9,6 Unit not stated in the document | 50 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Lead | <0,002 below limit of quantification Unit not stated in the document | 10 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Escherichia coli (E. coli) | 0 Unit not stated in the document | 0/100 ml | — | Maximum · Median 0 · Rohrleitungsnetz KWW GmbH, 2025 |
| Sulphate | 52,5 Unit not stated in the document | 250 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Sodium | 29,1 Unit not stated in the document | 200 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
Show all recorded parameters (50 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Unit not stated in the document | 0/100 ml | — | Maximum · Median 0 · Rohrleitungsnetz KWW GmbH, 2025 |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,1 below limit of quantification Unit not stated in the document | 3 µg/l | — | Single value |
| Acrylamide | <0,03 below limit of quantification Unit not stated in the document | 0.1 µg/l | — | Single value |
| Antimony | <0,0010 below limit of quantification Unit not stated in the document | 5 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Arsenic | 0,0013 Unit not stated in the document | 10 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Benzene | <0,05 below limit of quantification Unit not stated in the document | 1 µg/l | — | Single value |
| Benzo(a)pyrene | <0,002 below limit of quantification Unit not stated in the document | 10 ng/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Bisphenol A | <0,010 below limit of quantification Unit not stated in the document | 2.5 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Boron | 0,064 Unit not stated in the document | 1 mg/l | — | Single value |
| Bromate | <0,002 below limit of quantification Unit not stated in the document | 10 µg/l | — | Single value |
| Cadmium | <0,0002 below limit of quantification Unit not stated in the document | 3 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Chromium | <0,00050 below limit of quantification Unit not stated in the document | 25 µg/l | — | Single value |
| Copper | 0,057 Unit not stated in the document | 2 mg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Cyanide | <0,0050 below limit of quantification Unit not stated in the document | 50 µg/l | — | Single value |
| Epichlorohydrin | <0,003 below limit of quantification Unit not stated in the document | 0.1 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Fluoride | 0,08 Unit not stated in the document | 1.5 mg/l | — | Single value |
| Lead | <0,002 below limit of quantification Unit not stated in the document | 10 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Mercury | <0,00010 below limit of quantification Unit not stated in the document | 1 µg/l | — | Single value |
| Nickel | <0,0020 below limit of quantification Unit not stated in the document | 20 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Nitrate | 9,6 Unit not stated in the document | 50 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Nitrite | <0,020 below limit of quantification Unit not stated in the document | 0.5 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Polycyclic aromatic hydrocarbons | 0 Unit not stated in the document | 0.1 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
| Selenium | <0,0010 below limit of quantification Unit not stated in the document | 10 µg/l | — | Single value |
| Uranium | 0,00073 Unit not stated in the document | 10 µg/l | — | Single value |
| Vinyl chloride | <0,05 below limit of quantification Unit not stated in the document | 0.5 µg/l | — | Maximum · Rohrleitungsnetz KWW GmbH, 2025 |
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,000 | — | — | Single value |
| Sum of PFAS | 0,000 | — | — | Single value |
Indicator parameters (15)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,010 below limit of quantification Unit not stated in the document | 0.2 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Ammonium | <0,020 below limit of quantification Unit not stated in the document | 0.5 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Calcite dissolution capacity | -2,6 Unit not stated in the document | 5 mg/l CaCO3 | — | Single value |
| Chloride | 49,5 Unit not stated in the document | 250 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Colour | <0,10 below limit of quantification Unit not stated in the document | 0.5 m⁻¹ | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Conductivity (25 °C) | 589 Unit not stated in the document | 2,790 µS/cm | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Iron | <0,0005 below limit of quantification Unit not stated in the document | 0.2 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Manganese | <0,0005 below limit of quantification Unit not stated in the document | 50 µg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Sodium | 29,1 Unit not stated in the document | 200 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Sulphate | 52,5 Unit not stated in the document | 250 mg/l | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Taste | unauffällig | für den Verbraucher annehmbar | — | Single value · Rohrleitungsnetz KWW GmbH, 2025 |
| Temperature | 14,1 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Threshold odour number (TON) | - not determined | — | — | Single value |
| Total organic carbon (TOC) | 1,1 | ohne anormale Veränderung | — | Single value |
| Turbidity | <0,10 below limit of quantification Unit not stated in the document | 1 NTU | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,24 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Base capacity to pH 8.2 | 0,23 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Calcium | 71,2 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Hardness range (WRMG) | mittel | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Magnesium | 10,5 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Potassium | 3,68 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Sum of alkaline earth metals | 2,14 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
| Total hardness | 12,6 | — | — | Mean · Binsheimer Feld, Mittelwerte 2025 |
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.kww.nrw/media/trinkwasseranalyse_2025_1.pdf · 2025 · retrieved on 11/07/2026
Postcodes in this zone: 47665
Frequently asked questions about drinking water in Sonsbeck
- How hard is the water in Sonsbeck?
- KWW GmbH - Kommunales Wasserwerk publishes the hardness range mittel for the supply zone rheinberg gesamt. 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.
- Who supplies the drinking water in Sonsbeck?
- KWW GmbH - Kommunales Wasserwerk. The values shown here come from the supply zone rheinberg gesamt 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.