Drinking water in 61381
For this postcode Stadtwerke Friedrichsdorf (Eigenbetrieb der Stadt Friedrichsdorf) 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.
These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2024. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 10,9 mg/l | 50 mg/l | 22 % | Mean |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Escherichia coli (E. coli) | 0 Anzahl/100 ml | 0/100 ml | — | Mean |
| Sulphate | 14 mg/l | 250 mg/l | 6 % | Mean |
| Sodium | 8,9 mg/l | 200 mg/l | 4 % | Mean |
* 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 (42 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100 ml | 0/100 ml | — | Mean |
| Intestinal enterococci | 0 Anzahl/100 ml | 0/100 ml | — | Mean |
Chemical parameters (21)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Mean |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Mean |
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Benzene | <0,0002 mg/l below limit of quantification | 1 µg/l | < 20 % * | Mean |
| Benzo(a)pyrene | <0,000002 mg/l below limit of quantification | 10 ng/l | < 20 % * | Mean |
| Boron | <0,05 mg/l below limit of quantification | 1 mg/l | < 5 % * | Mean |
| Bromate | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Cadmium | <0,0005 mg/l below limit of quantification | 3 µg/l | < 17 % * | Mean |
| Chromium | 0,0010 mg/l | 25 µg/l | 4 % | Mean |
| Copper | <0,005 mg/l below limit of quantification | 2 mg/l | < 0.3 % * | Mean |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean |
| Fluoride | <0,2 mg/l below limit of quantification | 1.5 mg/l | < 13 % * | Mean |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Mercury | <0,00005 mg/l below limit of quantification | 1 µg/l | < 5 % * | Mean |
| Nickel | <0,002 mg/l below limit of quantification | 20 µg/l | < 10 % * | Mean |
| Nitrate | 10,9 mg/l | 50 mg/l | 22 % | Mean |
| Nitrite | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Mean |
| Tetrachloroethene and Trichloroethene (sum) | <0,0001 mg/l below limit of quantification | 10 µg/l | < 1 % * | Mean |
| Trihalomethanes — Total | alle ES unter BG mg/l not detectable | 50 µg/l | — | Mean |
| Uranium | 0,0006 mg/l | 10 µg/l | 6 % | Mean |
* 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 (15)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Mean |
| Ammonium | 0,06 mg/l | 0.5 mg/l | 12 % | Mean |
| Calcite dissolution capacity | 0,0 mg/l CaCO3 | 5 mg/l CaCO3 | — | Mean |
| Chloride | 15,5 mg/l | 250 mg/l | 6 % | Mean |
| Coliform bacteria | 0 Anzahl/100 ml | 0/100 ml | — | Mean |
| Colour | <0,05 m-1 below limit of quantification | 0.5 m⁻¹ | — | Mean |
| Iron | <0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Mean |
| Manganese | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean |
| Sodium | 8,9 mg/l | 200 mg/l | 4 % | Mean |
| Sulphate | 14 mg/l | 250 mg/l | 6 % | Mean |
| Taste | ohne | für den Verbraucher annehmbar | — | Mean |
| Temperature | 8 - 20 °C | — | — | Single value |
| Threshold odour number (TON) | ohne | — | — | Mean |
| Total organic carbon (TOC) | 0,4 mg/l | ohne anormale Veränderung | — | Mean |
| Turbidity | 0,2 NTU | 1 NTU | — | Mean |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,40 mmol/l | — | — | Single value |
| Calcium | 34,5 mg/l | — | — | Single value |
| Magnesium | 16,0 mg/l | — | — | Single value |
| Potassium | 1,7 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.
Show 1 more supply zone in this postcode
Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2024. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.
No core values are available for this zone yet.
Show all recorded parameters (2 — most recent value per parameter)
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Indicative dose | <0,1 mSv/a below limit of quantification | 0.1 mSv/a | — | Single value · Erstbeprobung |
| Radon-222 | 4,0 Bq/l | 100 Bq/l | — | Single value · Erstbeprobung |
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 61381
- How much nitrate is in the drinking water in Postcode 61381?
- Stadtwerke Friedrichsdorf (Eigenbetrieb der Stadt Friedrichsdorf) publishes a nitrate value of 10,9 mg/l for the supply zone Seulberg. The statutory parametric value is 50 mg/l; the measured value represents 22 % of the parametric value. Basis: 09.07.2024, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 61381?
- Stadtwerke Friedrichsdorf (Eigenbetrieb der Stadt Friedrichsdorf). The values shown here come from the supply zone Seulberg 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.