Drinking water in 66359
For this postcode Gas- und Wasserwerke Bous-Schwalbach 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 1 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.
wp-gas-und-wasserwerke-bous-schwalbach gesamt
Gas- und Wasserwerke Bous-SchwalbachAssigned 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 | 36.9 mg/l | 50 mg/l | 74 % | Single value |
| Lead | 0.0003 mg/l | 10 µg/l | 3 % | Single value |
| Escherichia coli (E. coli) | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Sulphate | 37.3 mg/l | 250 mg/l | 15 % | Single value |
| Sodium | 12.9 mg/l | 200 mg/l | 6 % | Single value |
Show all recorded parameters (63 — 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 (36)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | 0.0002 mg/l | 3 µg/l | 7 % | Single value |
| Antimony | 0.0003 mg/l | 5 µg/l | 6 % | Single value |
| Arsenic | 0.0039 mg/l | 10 µg/l | 39 % | Single value |
| Atrazine | 2e-05 mg/l | — | — | Single value |
| Benzene | 0.0002 mg/l | 1 µg/l | 20 % | Single value |
| Benzo(a)pyrene | 1e-06 mg/l | 10 ng/l | 10 % | Single value |
| Boron | 0.05 mg/l | 1 mg/l | 5 % | Single value |
| Bromacil | 2e-05 mg/l | — | — | Single value |
| Bromate | 0.002 mg/l | 10 µg/l | 20 % | Single value |
| Cadmium | 0.0002 mg/l | 3 µg/l | 7 % | Single value |
| Chlorotoluron | 2e-05 mg/l | — | — | Single value |
| Chromium | 0.0005 mg/l | 25 µg/l | 2 % | Single value |
| Copper | 0.002 mg/l | 2 mg/l | 0.1 % | Single value |
| Cyanide | 0.005 mg/l | 50 µg/l | 10 % | Single value |
| Diuron | 2e-05 mg/l | — | — | Single value |
| Fluoride | 0.05 mg/l | 1.5 mg/l | 3 % | Single value |
| Hexazinone | 2e-05 mg/l | — | — | Single value |
| Isoproturon | 2e-05 mg/l | — | — | Single value |
| Lead | 0.0003 mg/l | 10 µg/l | 3 % | Single value |
| Mercury | 0.0001 mg/l | 1 µg/l | 10 % | Single value |
| Metazachlor | 2e-05 mg/l | — | — | Single value |
| Methabenzthiazuron | 2e-05 mg/l | — | — | Single value |
| Metobromuron | 2e-05 mg/l | — | — | Single value |
| Monuron | 2e-05 mg/l | — | — | Single value |
| Nickel | 0.0017 mg/l | 20 µg/l | 9 % | Single value |
| Nitrate | 36.9 mg/l | 50 mg/l | 74 % | Single value |
| Nitrite | 0.005 mg/l | 0.5 mg/l | 1 % | Single value |
| Pesticides — Total | 2.1e-05 mg/l | 0.5 µg/l | 4 % | Single value |
| Propazine | 2e-05 mg/l | — | — | Single value |
| Selenium | 0.0006 mg/l | 10 µg/l | 6 % | Single value |
| Simazine | 2e-05 mg/l | — | — | Single value |
| Terbuthylazine | 2e-05 mg/l | — | — | Single value |
| Tetrachloroethene | 0.0002 mg/l | — | — | Single value |
| Trichloroethene | 0.0002 mg/l | — | — | Single value |
| Trihalomethanes — Total | 0 mg/l | 50 µg/l | 0 % | Single value |
| Uranium | 0.0002 mg/l | 10 µg/l | 2 % | Single value |
Indicator parameters (19)
| 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 | -14 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 36.2 mg/l | 250 mg/l | 14 % | 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 | 1 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | 0.1 1/m | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 549 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | 0.005 mg/l | 0.2 mg/l | 3 % | Single value |
| Manganese | 0.008 mg/l | 50 µg/l | 16 % | Single value |
| Odour | nein | für den Verbraucher annehmbar | — | Single value |
| pH | 8.2 | 6,5–9,5 | — | Single value |
| Sodium | 12.9 mg/l | 200 mg/l | 6 % | Single value |
| Sulphate | 37.3 mg/l | 250 mg/l | 15 % | Single value |
| Taste | ohne | für den Verbraucher annehmbar | — | Single value |
| Temperature | 11.4 °C | — | — | Single value |
| Total organic carbon (TOC) | 1 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0.3 TE/F | 1 NTU | — | Single value |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3.237 mmol/l | — | — | Single value |
| Base capacity to pH 8.2 | 0.003 mmol/l | — | — | Single value |
| Calcium | 62.6 mg/l | — | — | Single value |
| Magnesium | 20.5 mg/l | — | — | Single value |
| Potassium | 4.5 mg/l | — | — | Single value |
| Total hardness | 13 °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.
Show 1 more supply zone in this postcode
schwalbach gesamt
Gas- und Wasserwerke Bous-SchwalbachAssigned 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 | 39,4 mg/l | 50 mg/l | 79 % | Maximum |
| Lead | < 0,30 µg/l below limit of quantification | 10 µg/l | < 3 % * | Single value |
| Sulphate | 79,8 mg/l | 250 mg/l | 32 % | Maximum |
| Sodium | 14,1 mg/l | 200 mg/l | 7 % | Maximum |
* 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 (24 — most recent value per parameter)
Chemical parameters (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | 3,9 µg/l | 10 µg/l | 39 % | Maximum |
| Cadmium | < 0,20 µg/l below limit of quantification | 3 µg/l | < 7 % * | Single value |
| Chromium | 0,4 µg/l | 25 µg/l | 2 % | Maximum |
| Copper | 0,006 mg/l | 2 mg/l | 0.3 % | Maximum |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Fluoride | 0,05 mg/l | 1.5 mg/l | 3 % | Maximum |
| Lead | < 0,30 µg/l below limit of quantification | 10 µg/l | < 3 % * | Single value |
| Mercury | < 0,10 µg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Nickel | 1,9 µg/l | 20 µg/l | 9 % | Maximum |
| Nitrate | 39,4 mg/l | 50 mg/l | 79 % | Maximum |
| Nitrite | < 0,005 mg/l below limit of quantification | 0.5 mg/l | < 1 % * | Single value |
| Pesticides | 0,00 µg/l | 0.1 µg/l | 0 % | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Indicator parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Chloride | 36,4 mg/l | 250 mg/l | 15 % | Maximum |
| Iron | 0,007 mg/l | 0.2 mg/l | 3 % | Maximum |
| Manganese | < 0,0020 mg/l below limit of quantification | 50 µg/l | < 4 % * | Single value |
| pH | 8,19 | 6,5–9,5 | — | Maximum |
| Sodium | 14,1 mg/l | 200 mg/l | 7 % | Maximum |
| Sulphate | 79,8 mg/l | 250 mg/l | 32 % | Maximum |
* 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 (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 60,5 mg/l | — | — | Maximum |
| Hardness range (WRMG) | Mittel | — | — | Single value |
| Magnesium | 21,3 mg/l | — | — | Maximum |
| Potassium | 4,4 mg/l | — | — | Maximum |
| Total hardness | 13 °DH | — | — | Maximum |
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.
Frequent questions about postcode 66359
- How hard is the water in Postcode 66359?
- Gas- und Wasserwerke Bous-Schwalbach publishes a total hardness of 13 °dH for the supply zone wp-gas-und-wasserwerke-bous-schwalbach gesamt (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: 2025-10-06, retrieved on 27/07/2026.
- How much nitrate is in the drinking water in Postcode 66359?
- Gas- und Wasserwerke Bous-Schwalbach publishes a nitrate value of 36.9 mg/l for the supply zone wp-gas-und-wasserwerke-bous-schwalbach gesamt. The statutory parametric value is 50 mg/l; the measured value represents 74 % of the parametric value. Basis: 2025-10-06, retrieved on 27/07/2026.
- Who supplies the drinking water in Postcode 66359?
- Gas- und Wasserwerke Bous-Schwalbach. The values shown here come from the supply zone wp-gas-und-wasserwerke-bous-schwalbach 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.