Drinking water in Röslau
One supply zone, water supplier: gKU Oberes Egertal.
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.
wp-gku-oberes-egertal-wvg-roeslau gesamt
gKU Oberes EgertalAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
Hardness range 7.19
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 26 mg/l | 50 mg/l | 52 % | Single value |
| Lead | 0.01 mg/l | 10 µg/l | 100 % | Single value |
| Escherichia coli (E. coli) | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Sulphate | 19 mg/l | 250 mg/l | 8 % | Single value |
| Sodium | 8.96 mg/l | 200 mg/l | 4 % | Single value |
Show all recorded parameters (66 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 KBE/100 ml | 0/100 ml | — | Single value |
Chemical parameters (41)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | 0.0005 mg/l | 3 µg/l | 17 % | Single value |
| Antimony | 0.001 mg/l | 5 µg/l | 20 % | Single value |
| Arsenic | 0.002 mg/l | 10 µg/l | 20 % | Single value |
| Atrazine | 2e-05 mg/l | — | — | Single value |
| Bentazone | 2e-05 mg/l | — | — | Single value |
| Benzene | 0.0003 mg/l | 1 µg/l | 30 % | Single value |
| Benzo(a)pyrene | 3e-06 mg/l | 10 ng/l | 30 % | Single value |
| Bisphenol A | 0.0004 mg/l | 2.5 µg/l | 16 % | Single value |
| Boron | 0.1 mg/l | 1 mg/l | 10 % | Single value |
| Bromacil | 2e-05 mg/l | — | — | Single value |
| Bromate | 0.003 mg/l | 10 µg/l | 30 % | Single value |
| Cadmium | 0.0005 mg/l | 3 µg/l | 17 % | Single value |
| Chlorotoluron | 2e-05 mg/l | — | — | Single value |
| Chromium | 0.0005 mg/l | 25 µg/l | 2 % | Single value |
| Copper | 0.01 mg/l | 2 mg/l | 0.5 % | Single value |
| Cyanide | 0.002 mg/l | 50 µg/l | 4 % | Single value |
| Desethylatrazine | 2e-05 mg/l | — | — | Single value |
| Dichlorprop | 2e-05 mg/l | — | — | Single value |
| Dimethoate | 0.02 µg/l | — | — | Single value |
| Diuron | 2e-05 mg/l | — | — | Single value |
| Fluoride | 0.16 mg/l | 1.5 mg/l | 11 % | Single value |
| Glyphosate | 2.5e-05 mg/l | — | — | Single value |
| Isoproturon | 2e-05 mg/l | — | — | Single value |
| Lead | 0.01 mg/l | 10 µg/l | 100 % | Single value |
| MCPA | 2e-05 mg/l | — | — | Single value |
| Mecoprop | 2e-05 mg/l | — | — | Single value |
| Mercury | 0.0002 mg/l | 1 µg/l | 20 % | Single value |
| Metazachlor | 2e-05 mg/l | — | — | Single value |
| Metobromuron | 2e-05 mg/l | — | — | Single value |
| Nickel | 0.002 mg/l | 20 µg/l | 10 % | Single value |
| Nitrate | 26 mg/l | 50 mg/l | 52 % | Single value |
| Nitrite | 0.01 mg/l | 0.5 mg/l | 2 % | Single value |
| Pesticides — Total | 0 mg/l | 0.5 µg/l | 0 % | Single value |
| Polycyclic aromatic hydrocarbons | 1e-05 mg/l | 0.1 µg/l | 10 % | Single value |
| Propazine | 2e-05 mg/l | — | — | Single value |
| Selenium | 0.003 mg/l | 10 µg/l | 30 % | Single value |
| Simazine | 2e-05 mg/l | — | — | Single value |
| Terbuthylazine | 2e-05 mg/l | — | — | Single value |
| Tetrachloroethene and Trichloroethene (sum) | 0.001 mg/l | 10 µg/l | 10 % | Single value |
| Trihalomethanes — Total | 0.001 mg/l | 50 µg/l | 2 % | Single value |
| Uranium | 0.001 mg/l | 10 µg/l | 10 % | Single value |
Indicator parameters (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0.01 mg/l | 0.2 mg/l | 5 % | Single value |
| Ammonium | 0.02 mg/l | 0.5 mg/l | 4 % | Single value |
| Calcite dissolution capacity | 1.64 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 30 mg/l | 250 mg/l | 12 % | Single value |
| Coliform bacteria | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | 0.05 1/m | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 309 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | 0.01 mg/l | 0.2 mg/l | 5 % | Single value |
| Manganese | 0.005 mg/l | 50 µg/l | 10 % | Single value |
| Odour | ohne, keine, keine | für den Verbraucher annehmbar | — | Single value |
| pH | 7.9 | 6,5–9,5 | — | Single value |
| Sodium | 8.96 mg/l | 200 mg/l | 4 % | Single value |
| Sulphate | 19 mg/l | 250 mg/l | 8 % | Single value |
| Taste | ohne, keine, keine | für den Verbraucher annehmbar | — | Single value |
| Temperature | 7.1 °C | — | — | Single value |
| Total organic carbon (TOC) | 0.87 mg/l | ohne anormale Veränderung | — | Single value |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 1.38 mmol/l | — | — | Single value |
| Calcium | 41.8 mg/l | — | — | Single value |
| Hardness range (WRMG) | 7.19 °dH | — | — | Single value |
| Magnesium | 5.82 mg/l | — | — | Single value |
| Potassium | 0.879 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://oeffentlichkeit.gw-manager.com/gebiete/5a88f120-2283-4eea-b12e-8dc4e130b0ab · 2026-05-11 · 2026-05-11 · retrieved on 27/07/2026
Postcodes in this zone: 95195
Frequently asked questions about drinking water in Röslau
- How hard is the water in Röslau?
- gKU Oberes Egertal publishes the hardness range 7.19 for the supply zone wp-gku-oberes-egertal-wvg-roeslau 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: 2026-05-11, retrieved on 27/07/2026.
- How much nitrate is in the drinking water in Röslau?
- gKU Oberes Egertal publishes a nitrate value of 26 mg/l for the supply zone wp-gku-oberes-egertal-wvg-roeslau gesamt. The statutory parametric value is 50 mg/l; the measured value represents 52 % of the parametric value. Basis: 2026-05-11, retrieved on 27/07/2026.
- Who supplies the drinking water in Röslau?
- gKU Oberes Egertal. The values shown here come from the supply zone wp-gku-oberes-egertal-wvg-roeslau 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.