Drinking water in 02785
One supply zone, water supplier: ZV Oberlausitz.
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.
WW JOHNSDORF
ZV OberlausitzAssigned 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 31/12/2020. 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 | 8.3 mg/l | 50 mg/l | 17 % | Mean |
| Sulphate | 21 mg/l | 250 mg/l | 8 % | Mean |
Show all recorded parameters (8 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 8.3 mg/l | 50 mg/l | 17 % | Mean |
| Uranium | <0.0003 mg/l below limit of quantification | 10 µg/l | < 3 % * | 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 (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0.006 mg/l | 0.2 mg/l | 3 % | Mean |
| Iron | <0.05 mg/l below limit of quantification | 0.2 mg/l | < 25 % * | Mean |
| Manganese | <0.005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Mean |
| pH | 7.8 - | 6,5–9,5 | — | Mean |
| Sulphate | 21 mg/l | 250 mg/l | 8 % | 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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Total hardness | 6.2 °dH | — | — | Mean |
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 02785
- How hard is the water in Postcode 02785?
- ZV Oberlausitz publishes a total hardness of 6.2 °dH for the supply zone WW JOHNSDORF (hardness range soft). 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: 16.05.2023, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Postcode 02785?
- ZV Oberlausitz publishes a nitrate value of 8.3 mg/l for the supply zone WW JOHNSDORF. The statutory parametric value is 50 mg/l; the measured value represents 17 % of the parametric value. Basis: 16.05.2023, retrieved on 13/07/2026.
- Who supplies the drinking water in Postcode 02785?
- ZV Oberlausitz. The values shown here come from the supply zone WW JOHNSDORF 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.