Drinking water in Dotzigen
3 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.
MS Schulriederstrasse
Seeländische Wasserversorgung Gemeindeverband SWGAssigned 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 | 6.9 mg/l | 40 mg/l | 17 % | Single value |
| Escherichia coli (E. coli) | nn KBE/100 ml not detectable | 0/100 ml | — | Single value |
| Sulphate | 31 mg/l | — | — | Single value |
| Sodium | 4.5 mg/l | 200 mg/l | 2 % | Single value |
Show all recorded parameters (22 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 14 KBE/ml | 300 1/ml | — | Single value |
| Escherichia coli (E. coli) | nn KBE/100 ml not detectable | 0/100 ml | — | Single value |
| Intestinal enterococci | nn KBE/100 ml not detectable | 0/100 ml | — | Single value |
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | <0.1 mg/l below limit of quantification | 1.5 mg/l | < 7 % * | Single value |
| Nitrate | 6.9 mg/l | 40 mg/l | 17 % | Single value |
| Nitrite | <0.01 mg/l below limit of quantification | 0.1 mg/l | < 10 % * | 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.
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | <0.02 µg/l below limit of quantification | 0.1 µg/l | < 20 % * | Single value |
| Chlorothalonil metabolite R471811 | <0.05 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | 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 (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | <0.05 mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Single value |
| Chloride | 5.8 mg/l | — | — | Single value |
| Conductivity (25 °C) | 411 µS/cm | — | — | Single value |
| pH | 8.0 | — | — | Single value |
| Sodium | 4.5 mg/l | 200 mg/l | 2 % | Single value |
| Sulphate | 31 mg/l | — | — | Single value |
| Total organic carbon (TOC) | <0.5 mg/l below limit of quantification | — | — | Single value |
| Turbidity | 0.09 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 | 3.51 mmol/l | — | — | Single value |
| Calcium | 69 mg/l | — | — | Single value |
| Carbonate hardness | 17.5 °fH | — | — | Single value |
| Magnesium | 8.2 mg/l | — | — | Single value |
| Potassium | 1.6 mg/l | — | — | Single value |
| Total hardness | 20.6 °fH | — | — | 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.
Postcodes in this zone: 3293
Show 2 more supply zones
Nr. 120.05 Reservoir Dotzigenberg
Seeländische Wasserversorgung Gemeindeverband SWGAssigned 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 12/06/2023. 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 | 6.7 mg/l | 40 mg/l | 17 % | Single value |
| Sulphate | 27 mg/l | — | — | Single value |
| Sodium | 4.53 mg/l | 200 mg/l | 2 % | Single value |
Show all recorded parameters (18 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 6.7 mg/l | 40 mg/l | 17 % | Single value |
| Nitrite | <0.005 mg/l below limit of quantification | 0.1 mg/l | < 5 % * | 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.
Metabolites (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chlorothalonil metabolite R417888 | 0.026 µg/l | 0.1 µg/l | 26 % | Single value |
| Chlorothalonil metabolite R471811 | 0.13 µg/l | 0.1 µg/l | 130 % above the parametric value | Single value |
An exceedance of a parametric value does not automatically mean a health risk; the statutory parametric values include safety margins. Assessment and any measures are the responsibility of the competent health authority of the respective country.
Indicator parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | <0.01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Chloride | 4.8 mg/l | — | — | Single value |
| Conductivity (25 °C) | 464 µS/cm | — | — | Single value |
| pH | 8.2 | — | — | Single value |
| Sodium | 4.53 mg/l | 200 mg/l | 2 % | Single value |
| Sulphate | 27 mg/l | — | — | Single value |
| Total organic carbon (TOC) | 0.52 mg/l | — | — | Single value |
| Turbidity | 0.21 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 | 4.60 mmol/l | — | — | Single value |
| Calcium | 72.2 mg/l | — | — | Single value |
| Carbonate hardness | 22.9 °fH | — | — | Single value |
| Magnesium | 16.7 mg/l | — | — | Single value |
| Potassium | 1.34 mg/l | — | — | Single value |
| Total hardness | 24.9 °fH | — | — | 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.
Postcodes in this zone: 3293
Reservoir Dotzigenberg (Probe 120.05, Trinkwasser im Verteilnetz)
Seeländische Wasserversorgung Gemeindeverband SWGAssigned 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 17/06/2024. 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 |
|---|---|---|---|---|
| Escherichia coli (E. coli) | nn KBE/100 ml not detectable | 0/100 ml | — | Single value |
Show all recorded parameters (3 — most recent value per parameter)
Microbiology (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aerobic mesophilic bacteria | 8 KBE/ml | 300 1/ml | — | Single value |
| Escherichia coli (E. coli) | nn KBE/100 ml not detectable | 0/100 ml | — | Single value |
| Intestinal enterococci | nn KBE/100 ml not detectable | 0/100 ml | — | 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.
Postcodes in this zone: 3293
Frequently asked questions about drinking water in Dotzigen
- How hard is the water in Dotzigen?
- Seeländische Wasserversorgung Gemeindeverband SWG publishes a total hardness of 20.6 °fH for the supply zone MS Schulriederstrasse — that corresponds to 11.5 °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: 29.09.2025, retrieved on 12/08/2026.
- How much nitrate is in the drinking water in Dotzigen?
- Seeländische Wasserversorgung Gemeindeverband SWG publishes a nitrate value of 6.9 mg/l for the supply zone MS Schulriederstrasse. The statutory parametric value is 40 mg/l; the measured value represents 17 % of the parametric value. Basis: 29.09.2025, retrieved on 12/08/2026.
- Who supplies the drinking water in Dotzigen?
- Seeländische Wasserversorgung Gemeindeverband SWG. The values shown here come from the supply zone MS Schulriederstrasse 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.