Drinking water in Wittnau
There are 2 places with this name — listed below by area. To determine the exact match, look up the postcode.
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.
Wittnau (5064)
Frick AG
Brunnenmeisterdienste Regio FrickAssigned 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 | 20.2 mg/l | 40 mg/l | 51 % | Mean · Frick AG |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Frick AG |
Show all recorded parameters (10 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | nn not detectable Unit not stated in the document | 300 1/ml | — | Mean · Frick AG |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Frick AG |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Frick AG |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 20.2 mg/l | 40 mg/l | 51 % | Mean · Frick AG |
Metabolites (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R471811 | 0.13 µg/l | 0.1 µg/l | 130 % Mean above the parametric value | Mean · Frick AG |
Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Conductivity (25 °C) | 834.5 µS/cm | — | — | Mean · Frick AG |
| pH | 7.25 | — | — | Mean · Frick AG |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 143.2 mg/l | — | — | Mean · Frick AG |
| Magnesium | 17.4 mg/l | — | — | Mean · Frick AG |
| Total hardness | 43.16 °fH | — | — | Mean · Frick AG |
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.
Postcodes in this zone: 5064
Show 2 more supply zones
Gipf-Oberfrick AG
Brunnenmeisterdienste Regio FrickAssigned 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 | 11.6 mg/l | 40 mg/l | 29 % | Mean · Gipf-Oberfrick AG |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gipf-Oberfrick AG |
Show all recorded parameters (9 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | nn not detectable Unit not stated in the document | 300 1/ml | — | Mean · Gipf-Oberfrick AG |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gipf-Oberfrick AG |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Gipf-Oberfrick AG |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 11.6 mg/l | 40 mg/l | 29 % | Mean · Gipf-Oberfrick AG |
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Conductivity (25 °C) | 710.5 µS/cm | — | — | Mean · Gipf-Oberfrick AG |
| pH | 7.36 | — | — | Mean · Gipf-Oberfrick AG |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 127.5 mg/l | — | — | Mean · Gipf-Oberfrick AG |
| Magnesium | 11.8 mg/l | — | — | Mean · Gipf-Oberfrick AG |
| Total hardness | 36.7 °fH | — | — | Mean · Gipf-Oberfrick AG |
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.
Postcodes in this zone: 5064
Wittnau AG
Brunnenmeisterdienste Regio FrickAssigned 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 | 8.92 mg/l | 40 mg/l | 22 % | Mean · Wittnau AG |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Wittnau AG |
Show all recorded parameters (9 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 7 KBE/ml | 300 1/ml | — | Mean · Wittnau AG |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Wittnau AG |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Wittnau AG |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 8.92 mg/l | 40 mg/l | 22 % | Mean · Wittnau AG |
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Conductivity (25 °C) | 639 µS/cm | — | — | Mean · Wittnau AG |
| pH | 7.39 | — | — | Mean · Wittnau AG |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 118.7 mg/l | — | — | Mean · Wittnau AG |
| Magnesium | 7.63 mg/l | — | — | Mean · Wittnau AG |
| Total hardness | 35.25 °fH | — | — | Mean · Wittnau AG |
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.
Postcodes in this zone: 5064
Frequently asked questions about drinking water in Wittnau
- How hard is the water in Wittnau?
- Brunnenmeisterdienste Regio Frick publishes a total hardness of 43.16 °fH for the supply zone Frick AG — that corresponds to 24.2 °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: 2025, retrieved on 07/08/2026.
- How much nitrate is in the drinking water in Wittnau?
- Brunnenmeisterdienste Regio Frick publishes a nitrate value of 20.2 mg/l for the supply zone Frick AG. The statutory parametric value is 40 mg/l; the measured value represents 51 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Wittnau?
- Brunnenmeisterdienste Regio Frick. The values shown here come from the supply zone Frick AG 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.
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For postcode 79299 there is no verified assignment yet.