Drinking water in 64673
For this postcode GGEW AG (Gruppen-Gas- und Elektrizitätswerk Bergstraße Aktiengesellschaft) 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.
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 |
|---|---|---|---|---|
| Nitrate | 15,5 mg/l | 50 mg/l | 31 % | Single value |
| Lead | 0,00063 mg/l | 10 µg/l | 6 % | Single value |
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Single value |
| Sulphate | 64,1 mg/l | 250 mg/l | 26 % | Single value |
| Sodium | 18,9 mg/l | 200 mg/l | 9 % | Single value |
Show all recorded parameters (46 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 MPN/100ml | 0/100 ml | — | Single value |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,1 µg/l below limit of quantification | 3 µg/l | < 3 % * | Single value |
| Acrylamide | <0,05 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Antimony | < 0,00005 mg/l below limit of quantification | 5 µg/l | < 1 % * | Single value |
| Arsenic | 0,00034 mg/l | 10 µg/l | 3 % | Single value |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Bisphenol A | < 0,05 µg/l below limit of quantification | 2.5 µg/l | < 2 % * | Single value |
| Boron | 0,031 mg/l | 1 mg/l | 3 % | Single value |
| Bromate | < 0,0005 mg/l below limit of quantification | 10 µg/l | < 5 % * | Single value |
| Cadmium | < 0,00005 mg/l below limit of quantification | 3 µg/l | < 2 % * | Single value |
| Chromium | < 0,00005 mg/l below limit of quantification | 25 µg/l | < 0.2 % * | Single value |
| Copper | 0,0066 mg/l | 2 mg/l | 0.3 % | Single value |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Epichlorohydrin | < 0,05 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Fluoride | 0,12 mg/l | 1.5 mg/l | 8 % | Single value |
| Lead | 0,00063 mg/l | 10 µg/l | 6 % | Single value |
| Mercury | < 0,002 mg/l below limit of quantification | 1 µg/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value |
| Nickel | 0,00032 mg/l | 20 µg/l | 2 % | Single value |
| Nitrate | 15,5 mg/l | 50 mg/l | 31 % | Single value |
| Nitrite | < 0,030 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value |
| Selenium | 0,00011 mg/l | 10 µg/l | 1 % | Single value |
| Trihalomethanes — Total | n.b. µg/l not determined | 50 µg/l | — | Single value |
| Uranium | 0,00086 mg/l | 10 µg/l | 9 % | Single value |
| Vinyl chloride | <0,2 µg/l below limit of quantification | 0.5 µg/l | < 40 % * | 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 (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,015 mg/l below limit of quantification | 0.2 mg/l | < 8 % * | Single value |
| Ammonium | < 0,026 mg/l below limit of quantification | 0.5 mg/l | < 5 % * | Single value |
| Chloride | 33,6 mg/l | 250 mg/l | 13 % | Single value |
| Coliform bacteria | 0 MPN/100ml | 0/100 ml | — | Single value |
| Colour | < 0,1 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Iron | < 0,0050 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Single value |
| Manganese | 0,0068 mg/l | 50 µg/l | 14 % | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,46 pH | 6,5–9,5 | — | Single value |
| Sodium | 18,9 mg/l | 200 mg/l | 9 % | Single value |
| Sulphate | 64,1 mg/l | 250 mg/l | 26 % | Single value |
| Taste | neutral | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | 1,5 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | < 0,30 FNU below limit of quantification | 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 (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 5,94 mmol/l | — | — | Single value |
| Calcium | 129 mg/l | — | — | Single value |
| Hydrogen carbonate | 360 mg/l | — | — | Single value |
| Magnesium | 17,6 mg/l | — | — | Single value |
| Potassium | 2,27 mg/l | — | — | Single value |
| Total hardness | 3,94 mmol/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.
Show 1 more supply zone in this postcode
Alsbach-Hähnlein und Bickenbach
GGEW AG (Gruppen-Gas- und Elektrizitätswerk Bergstraße Aktiengesellschaft)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 |
|---|---|---|---|---|
| Nitrate | 41 mg/l | 50 mg/l | 82 % | Maximum |
| Lead | < 0,001 µg/l below limit of quantification | 10 µg/l | < < 0.1 % * | Single value |
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Single value |
| Sulphate | 38,9 mg/l | 250 mg/l | 16 % | Maximum |
| Sodium | 9,5 mg/l | 200 mg/l | 5 % | 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 (46 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 MPN/100ml | 0/100 ml | — | Single value |
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,1 µg/l below limit of quantification | 3 µg/l | < 3 % * | Single value |
| Acrylamide | <0,05 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Antimony | < 0,001 µg/l below limit of quantification | 5 µg/l | < < 0.1 % * | Single value |
| Arsenic | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Single value |
| Benzene | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Benzo(a)pyrene | < 0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Bisphenol A | < 0,05 µg/l below limit of quantification | 2.5 µg/l | < 2 % * | Single value |
| Boron | < 0,01 mg/l below limit of quantification | 1 mg/l | < 1 % * | Single value |
| Bromate | < 0,0005 mg/l below limit of quantification | 10 µg/l | < 5 % * | Single value |
| Cadmium | < 0,00005 mg/l below limit of quantification | 3 µg/l | < 2 % * | Single value |
| Chromium | < 0,005 mg/l below limit of quantification | 25 µg/l | < 20 % * | Single value |
| Copper | < 0,007 mg/l below limit of quantification | 2 mg/l | < 0.4 % * | Single value |
| Cyanide | < 0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Epichlorohydrin | < 0,05 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Fluoride | <0,15 mg/l below limit of quantification | 1.5 mg/l | < 10 % * | Single value |
| Lead | < 0,001 µg/l below limit of quantification | 10 µg/l | < < 0.1 % * | Single value |
| Mercury | < 0,000002 mg/l below limit of quantification | 1 µg/l | < 0.2 % * | Single value |
| Nickel | < 0,005 µg/l below limit of quantification | 20 µg/l | < < 0.1 % * | Single value |
| Nitrate | 41 mg/l | 50 mg/l | 82 % | Maximum |
| Nitrite | < 0,030 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Trihalomethanes — Total | n.b. µg/l not determined | 50 µg/l | — | Single value |
| Uranium | 0,006 mg/l | 10 µg/l | 60 % | Maximum |
| Vinyl chloride | <0,2 µg/l below limit of quantification | 0.5 µg/l | < 40 % * | 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 (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0,015 mg/l below limit of quantification | 0.2 mg/l | < 8 % * | Single value |
| Ammonium | < 0,026 mg/l below limit of quantification | 0.5 mg/l | < 5 % * | Single value |
| Chloride | 26,7 mg/l | 250 mg/l | 11 % | Maximum |
| Coliform bacteria | 0 MPN/100ml | 0/100 ml | — | Single value |
| Colour | 0,1 1/m | 0.5 m⁻¹ | — | Single value |
| Iron | < 0,005 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Single value |
| Manganese | 0,006 mg/l | 50 µg/l | 12 % | Maximum |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,56 pH | 6,5–9,5 | — | Maximum |
| Sodium | 9,5 mg/l | 200 mg/l | 5 % | Maximum |
| Sulphate | 38,9 mg/l | 250 mg/l | 16 % | Maximum |
| Taste | neutral | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | 0,55 mg/l | ohne anormale Veränderung | — | Maximum |
| Turbidity | < 0,30 FNU below limit of quantification | 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 (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 6,01 mmol/l | — | — | Maximum |
| Calcium | 106 mg/l | — | — | Maximum |
| Hydrogen carbonate | 323 mg/l | — | — | Maximum |
| Magnesium | 23,4 mg/l | — | — | Maximum |
| Potassium | 1,80 mg/l | — | — | Maximum |
| Total hardness | 3,42 mmol/l | — | — | 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 64673
- How hard is the water in Postcode 64673?
- GGEW AG (Gruppen-Gas- und Elektrizitätswerk Bergstraße Aktiengesellschaft) publishes a total hardness of 3,94 mmol/l for the supply zone Zwingenberg — that corresponds to 22.1 °dH. 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 25/07/2026.
- How much nitrate is in the drinking water in Postcode 64673?
- GGEW AG (Gruppen-Gas- und Elektrizitätswerk Bergstraße Aktiengesellschaft) publishes a nitrate value of 15,5 mg/l for the supply zone Zwingenberg. The statutory parametric value is 50 mg/l; the measured value represents 31 % of the parametric value. Basis: Publication by the water supplier, retrieved on 25/07/2026.
- Who supplies the drinking water in Postcode 64673?
- GGEW AG (Gruppen-Gas- und Elektrizitätswerk Bergstraße Aktiengesellschaft). The values shown here come from the supply zone Zwingenberg 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.