Drinking water in Riedenburg
One supply zone, water supplier: Zweckverband zur Wasserversorgung der Jachenhausener Gruppe.
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.
Ortsnetz Dietfurt
Zweckverband zur Wasserversorgung der Jachenhausener GruppeAssigned 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 | 17 mg/l | 50 mg/l | 34 % | Single value |
| Lead | < 0,0020 mg/l below limit of quantification | 10 µg/l | < 20 % * | Single value |
| Sulphate | 16 mg/l | 250 mg/l | 6 % | Single value |
| Sodium | 5 mg/l | 200 mg/l | 3 % | 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.
Show all recorded parameters (61 — most recent value per parameter)
Chemical parameters (36)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,3 μg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Antimony | < 0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Single value |
| Arsenic | < 0,0010 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Atrazine | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Benzene | < 0,50 μg/l below limit of quantification | 1 µg/l | < 50 % * | Single value |
| Benzo(a)pyrene | < 0,0025 μg/l below limit of quantification | 10 ng/l | < 25 % * | Single value |
| Boron | < 0,01 mg/l below limit of quantification | 1 mg/l | < 1 % * | Single value |
| Bromate | < 0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Single value |
| Bromodichloromethane | < 0,5 μg/l below limit of quantification | — | — | Single value |
| Cadmium | < 0,00050 mg/l below limit of quantification | 3 µg/l | < 17 % * | Single value |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Copper | 0,008 mg/l | 2 mg/l | 0.4 % | Single value |
| Cyanide | < 0,0050 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Desethylatrazine | 0,03 μg/l | — | — | Single value |
| Desethylterbuthylazine | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | < 0,05 μg/l below limit of quantification | — | — | Single value |
| Dibromochloromethane | < 0,5 μg/l below limit of quantification | — | — | Single value |
| Glyphosate | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Lead | < 0,0020 mg/l below limit of quantification | 10 µg/l | < 20 % * | Single value |
| Mercury | < 0,0002 mg/l below limit of quantification | 1 µg/l | < 20 % * | Single value |
| Metazachlor | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Metolachlor | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Nickel | < 0,0050 mg/l below limit of quantification | 20 µg/l | < 25 % * | Single value |
| Nitrate | 17 mg/l | 50 mg/l | 34 % | Single value |
| Nitrite | < 0,05 mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Single value |
| Propazine | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Selenium | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Simazine | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | < 0,02 μg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | < 0,5 μg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene and Trichloroethene (sum) | n.n. μg/l not detectable | 10 µg/l | — | Single value |
| Tribromomethane (bromoform) | < 0,5 μg/l below limit of quantification | — | — | Single value |
| Trichloroethene | < 0,5 μg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | < 0,5 μg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | n.n. μg/l not detectable | 50 µg/l | — | Single value |
| Uranium | < 0,0010 mg/l below limit of quantification | 10 µg/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.
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | < 0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value |
| Chloride | 12,5 mg/l | 250 mg/l | 5 % | Single value |
| Clostridium perfringens (including spores) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | farblos Unit not stated in the document | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 564 μS/cm | 2,790 µS/cm | — | Single value |
| Iron | < 0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Manganese | < 0,0050 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Odour | o.B. | für den Verbraucher annehmbar | — | Single value |
| Sodium | 5 mg/l | 200 mg/l | 3 % | Single value |
| Sulphate | 16 mg/l | 250 mg/l | 6 % | Single value |
| Taste | o.B. | für den Verbraucher annehmbar | — | Single value |
| Temperature | 13,10 °C | — | — | Single value |
| Total organic carbon (TOC) | 0,39 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,05 NTU | 1 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 84 mg/l | — | — | Single value |
| Carbonate hardness | 16,4 °dH | — | — | Single value |
| Free carbon dioxide | 26,3 mg/l | — | — | Single value |
| Magnesium | 27,7 mg/l | — | — | Single value |
| Oxygen | 9,20 mg/l | — | — | Single value |
| Potassium | 1,7 mg/l | — | — | Single value |
| Saturation index | + 0,14 | — | — | Single value |
| Sum of alkaline earth metals | 3,2 mmol/l | — | — | Single value |
| Total hardness | 18,1 °dH | — | — | 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: 93339
Frequently asked questions about drinking water in Riedenburg
- How hard is the water in Riedenburg?
- Zweckverband zur Wasserversorgung der Jachenhausener Gruppe publishes a total hardness of 18.1 °dH for the supply zone Ortsnetz Dietfurt (hardness range hard). 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: Publication by the water supplier, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Riedenburg?
- Zweckverband zur Wasserversorgung der Jachenhausener Gruppe publishes a nitrate value of 17 mg/l for the supply zone Ortsnetz Dietfurt. The statutory parametric value is 50 mg/l; the measured value represents 34 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Who supplies the drinking water in Riedenburg?
- Zweckverband zur Wasserversorgung der Jachenhausener Gruppe. The values shown here come from the supply zone Ortsnetz Dietfurt 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.