Drinking water in 97531
For this postcode Zweckverband zur Wasserversorgung der Theres-Gruppe publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 2 underneath.
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.
Theres-Gruppe
Zweckverband zur Wasserversorgung der Theres-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 | 8,4 mg/l | 50 mg/l | 17 % | Single value · Theres-Gruppe |
| Sulphate | 91 mg/l | 250 mg/l | 36 % | Single value · Theres-Gruppe |
| Sodium | 24 mg/l | 200 mg/l | 12 % | Single value · Theres-Gruppe |
Show all recorded parameters (13 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | 0,16 mg/l | 1.5 mg/l | 11 % | Single value · Theres-Gruppe |
| Mercury | <0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Single value · Theres-Gruppe |
| Nitrate | 8,4 mg/l | 50 mg/l | 17 % | Single value · Theres-Gruppe |
| Nitrite | <0,030 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value · Theres-Gruppe |
* 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 (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 40 mg/l | 250 mg/l | 16 % | Single value · Theres-Gruppe |
| Sodium | 24 mg/l | 200 mg/l | 12 % | Single value · Theres-Gruppe |
| Sulphate | 91 mg/l | 250 mg/l | 36 % | Single value · Theres-Gruppe |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 89 mg/l | — | — | Single value · Theres-Gruppe |
| Hardness range (WRMG) | hart | — | — | Single value · Theres-Gruppe |
| Magnesium | 23 mg/l | — | — | Single value · Theres-Gruppe |
| Oxygen | 6,5 mg/l | — | — | Single value · Theres-Gruppe |
| Potassium | 4,6 mg/l | — | — | Single value · Theres-Gruppe |
| Total hardness | 19 °dH | — | — | Single value · Theres-Gruppe |
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.
Show 2 more supply zones in this postcode
WSG Schweinfurt
Zweckverband zur Wasserversorgung der Theres-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 | 5,0 - 17,3 mg/l | 50 mg/l | — | Single value · WSG Schweinfurt |
| Sulphate | 117 - 151 mg/l | 250 mg/l | — | Single value · WSG Schweinfurt |
| Sodium | 21,6 - 28,0 mg/l | 200 mg/l | — | Single value · WSG Schweinfurt |
Show all recorded parameters (13 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | <0,15 - 0,33 mg/l below limit of quantification | 1.5 mg/l | — | Single value · WSG Schweinfurt |
| Nitrate | 5,0 - 17,3 mg/l | 50 mg/l | — | Single value · WSG Schweinfurt |
| Nitrite | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value · WSG Schweinfurt |
| Uranium | 0,001 mg/l | 10 µg/l | 10 % | Single value · WSG Schweinfurt |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 35,6 - 45,4 mg/l | 250 mg/l | — | Single value · WSG Schweinfurt |
| pH | 7,67 - 7,82 | 6,5–9,5 | — | Single value · WSG Schweinfurt |
| Sodium | 21,6 - 28,0 mg/l | 200 mg/l | — | Single value · WSG Schweinfurt |
| Sulphate | 117 - 151 mg/l | 250 mg/l | — | Single value · WSG Schweinfurt |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 97,8 - 114,0 mg/l | — | — | Single value · WSG Schweinfurt |
| Hardness range (WRMG) | Hart | — | — | Single value · WSG Schweinfurt |
| Magnesium | 23,1 - 26,0 mg/l | — | — | Single value · WSG Schweinfurt |
| Potassium | 0,10 - 0,14 mg/l | — | — | Single value · WSG Schweinfurt |
| Total hardness | 19,6 - 21,4 °dh | — | — | Single value · WSG Schweinfurt |
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.
Assigned 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 | 3,5 mg/l | 50 mg/l | 7 % | Single value · WSG Wonfurt |
| Sulphate | 93 mg/l | 250 mg/l | 37 % | Single value · WSG Wonfurt |
| Sodium | 24,0 mg/l | 200 mg/l | 12 % | Single value · WSG Wonfurt |
Show all recorded parameters (13 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | 0,20 mg/l | 1.5 mg/l | 13 % | Single value · WSG Wonfurt |
| Nitrate | 3,5 mg/l | 50 mg/l | 7 % | Single value · WSG Wonfurt |
| Nitrite | < 0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value · WSG Wonfurt |
| Uranium | 0,001 mg/l | 10 µg/l | 10 % | Single value · WSG Wonfurt |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 37,0 mg/l | 250 mg/l | 15 % | Single value · WSG Wonfurt |
| pH | 7,27 | 6,5–9,5 | — | Single value · WSG Wonfurt |
| Sodium | 24,0 mg/l | 200 mg/l | 12 % | Single value · WSG Wonfurt |
| Sulphate | 93 mg/l | 250 mg/l | 37 % | Single value · WSG Wonfurt |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 94,0 mg/l | — | — | Single value · WSG Wonfurt |
| Hardness range (WRMG) | Hart | — | — | Single value · WSG Wonfurt |
| Magnesium | 28,0 mg/l | — | — | Single value · WSG Wonfurt |
| Potassium | 4,7 mg/l | — | — | Single value · WSG Wonfurt |
| Total hardness | 19,7 °dh | — | — | Single value · WSG Wonfurt |
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 97531
- How hard is the water in Postcode 97531?
- Zweckverband zur Wasserversorgung der Theres-Gruppe publishes a total hardness of 19 °dH for the supply zone Theres-Gruppe (hardness range hart). 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 08/08/2026.
- How much nitrate is in the drinking water in Postcode 97531?
- Zweckverband zur Wasserversorgung der Theres-Gruppe publishes a nitrate value of 8,4 mg/l for the supply zone Theres-Gruppe. The statutory parametric value is 50 mg/l; the measured value represents 17 % of the parametric value. Basis: Publication by the water supplier, retrieved on 08/08/2026.
- Who supplies the drinking water in Postcode 97531?
- Zweckverband zur Wasserversorgung der Theres-Gruppe. The values shown here come from the supply zone Theres-Gruppe 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.