Drinking water in Altwis
One supply zone, water supplier: Brunnengenossenschaft Buchwald Altwis.
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.
Altwis (Gemeinde Hitzkirch)
Brunnengenossenschaft Buchwald AltwisAssigned 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 | 26 mg/l | 40 mg/l | 65 % | Mean · Altwis (Gemeinde Hitzkirch) |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Altwis (Gemeinde Hitzkirch) |
| Sodium | 9.7 mg/l | 200 mg/l | 5 % | Mean · Altwis (Gemeinde Hitzkirch) |
Show all recorded parameters (15 — 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 · Altwis (Gemeinde Hitzkirch) |
| Escherichia coli (E. coli) | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Altwis (Gemeinde Hitzkirch) |
| Intestinal enterococci | nn not detectable Unit not stated in the document | 0/100 ml | — | Maximum · Median nn · Altwis (Gemeinde Hitzkirch) |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 26 mg/l | 40 mg/l | 65 % | Mean · Altwis (Gemeinde Hitzkirch) |
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | 0.034 µg/l | 0.1 µg/l | 34 % | Mean · Altwis (Gemeinde Hitzkirch) |
| Chlorothalonil metabolite R471811 | 0.27 µg/l | 0.1 µg/l | 270 % Mean above the parametric value | Mean · Altwis (Gemeinde Hitzkirch) |
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 (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Conductivity (25 °C) | 719 µS/cm | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
| pH | 7.2 | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
| Sodium | 9.7 mg/l | 200 mg/l | 5 % | Mean · Altwis (Gemeinde Hitzkirch) |
| Temperature | 11.2 °C | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
| Turbidity | 0.21 TE/F | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
Further parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 0 mg/l | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
| Magnesium | 14 mg/l | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
| Potassium | 3.1 mg/l | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
| Total hardness | 37 °fH | — | — | Mean · Altwis (Gemeinde Hitzkirch) |
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: 6286
Frequently asked questions about drinking water in Altwis
- How hard is the water in Altwis?
- Brunnengenossenschaft Buchwald Altwis publishes a total hardness of 37 °fH for the supply zone Altwis (Gemeinde Hitzkirch) — that corresponds to 20.7 °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 Altwis?
- Brunnengenossenschaft Buchwald Altwis publishes a nitrate value of 26 mg/l for the supply zone Altwis (Gemeinde Hitzkirch). The statutory parametric value is 40 mg/l; the measured value represents 65 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Altwis?
- Brunnengenossenschaft Buchwald Altwis. The values shown here come from the supply zone Altwis (Gemeinde Hitzkirch) 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.