Drinking water in Rorschacherberg
2 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. 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.
Rorschacherberg Nordost
Wasserversorgung RorschacherbergAssigned 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 | 10 mg/l | 40 mg/l | 25 % | Mean · Rorschacherberg Nordost |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Rorschacherberg Nordost |
Show all recorded parameters (7 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 3.3 KBE/ml | 300 1/ml | — | Mean · Rorschacherberg Nordost |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Rorschacherberg Nordost |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Rorschacherberg Nordost |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 10 mg/l | 40 mg/l | 25 % | Mean · Rorschacherberg Nordost |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 107.3 mg/l | — | — | Mean · Rorschacherberg Nordost |
| Magnesium | 16.5 mg/l | — | — | Mean · Rorschacherberg Nordost |
| Total hardness | 30 °fH | — | — | Mean · Rorschacherberg Nordost |
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: 9404
Show 1 more supply zone
Rorschacherberg Süd und Nordwest
Wasserversorgung RorschacherbergAssigned 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 mg/l | 40 mg/l | 20 % | Mean · Rorschacherberg Süd und Nordwest |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Rorschacherberg Süd und Nordwest |
Show all recorded parameters (7 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 3.3 KBE/ml | 300 1/ml | — | Mean · Rorschacherberg Süd und Nordwest |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Rorschacherberg Süd und Nordwest |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Maximum · Median 0 · Rorschacherberg Süd und Nordwest |
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 8 mg/l | 40 mg/l | 20 % | Mean · Rorschacherberg Süd und Nordwest |
Further parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 54.4 mg/l | — | — | Mean · Rorschacherberg Süd und Nordwest |
| Magnesium | 8.2 mg/l | — | — | Mean · Rorschacherberg Süd und Nordwest |
| Total hardness | 17 °fH | — | — | Mean · Rorschacherberg Süd und Nordwest |
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: 9404
Frequently asked questions about drinking water in Rorschacherberg
- How hard is the water in Rorschacherberg?
- Wasserversorgung Rorschacherberg publishes a total hardness of 30 °fH for the supply zone Rorschacherberg Nordost — that corresponds to 16.8 °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 Rorschacherberg?
- Wasserversorgung Rorschacherberg publishes a nitrate value of 10 mg/l for the supply zone Rorschacherberg Nordost. The statutory parametric value is 40 mg/l; the measured value represents 25 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
- Who supplies the drinking water in Rorschacherberg?
- Wasserversorgung Rorschacherberg. The values shown here come from the supply zone Rorschacherberg Nordost 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.