Drinking water in Gräfenberg
4 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.
Versorgungsgebiet 1
Wasserversorgung GräfenbergAssigned 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 | 3,14 mg/l | 50 mg/l | 6 % | Single value · Versorgungsgebiet 1 |
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 1 |
| Sodium | 9,95 mg/l | 200 mg/l | 5 % | Single value · Versorgungsgebiet 1 |
Show all recorded parameters (13 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 1 |
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | 0,0036 mg/l | 10 µg/l | 36 % | Single value · Versorgungsgebiet 1 |
| Nitrate | 3,14 mg/l | 50 mg/l | 6 % | Single value · Versorgungsgebiet 1 |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · Versorgungsgebiet 1 |
* 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 | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value · Versorgungsgebiet 1 |
| Coliform bacteria | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 1 |
| Colony count 22 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 1 |
| Colony count 36 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 1 |
| Conductivity (25 °C) | 440 µS/cm | 2,790 µS/cm | — | Single value · Versorgungsgebiet 1 |
| pH | 7,65 | 6,5–9,5 | — | Single value · Versorgungsgebiet 1 |
| Sodium | 9,95 mg/l | 200 mg/l | 5 % | Single value · Versorgungsgebiet 1 |
| Temperature | 13,8 °C | — | — | Single value · Versorgungsgebiet 1 |
* 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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 / Mittel | — | — | Single value · Versorgungsgebiet 1 |
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: 91322
Show 3 more supply zones
Versorgungsgebiet 2
Wasserversorgung GräfenbergAssigned 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 | 8,29 mg/l | 50 mg/l | 17 % | Single value · Versorgungsgebiet 2 |
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 2 |
| Sodium | 13,9 mg/l | 200 mg/l | 7 % | Single value · Versorgungsgebiet 2 |
Show all recorded parameters (13 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 2 |
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | <0,0001 mg/l below limit of quantification | 10 µg/l | < 1 % * | Single value · Versorgungsgebiet 2 |
| Nitrate | 8,29 mg/l | 50 mg/l | 17 % | Single value · Versorgungsgebiet 2 |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · Versorgungsgebiet 2 |
* 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 | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value · Versorgungsgebiet 2 |
| Coliform bacteria | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 2 |
| Colony count 22 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 2 |
| Colony count 36 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 2 |
| Conductivity (25 °C) | 629 µS/cm | 2,790 µS/cm | — | Single value · Versorgungsgebiet 2 |
| pH | 7,38 | 6,5–9,5 | — | Single value · Versorgungsgebiet 2 |
| Sodium | 13,9 mg/l | 200 mg/l | 7 % | Single value · Versorgungsgebiet 2 |
| Temperature | 13,2 °C | — | — | Single value · Versorgungsgebiet 2 |
* 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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 3 / hart | — | — | Single value · Versorgungsgebiet 2 |
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: 91322
Versorgungsgebiet 3
Wasserversorgung GräfenbergAssigned 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 | 5,81 mg/l | 50 mg/l | 12 % | Single value · Versorgungsgebiet 3 |
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 3 |
| Sodium | 6,71 mg/l | 200 mg/l | 3 % | Single value · Versorgungsgebiet 3 |
Show all recorded parameters (13 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 3 |
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | <0,0001 mg/l below limit of quantification | 10 µg/l | < 1 % * | Single value · Versorgungsgebiet 3 |
| Nitrate | 5,81 mg/l | 50 mg/l | 12 % | Single value · Versorgungsgebiet 3 |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · Versorgungsgebiet 3 |
* 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 | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value · Versorgungsgebiet 3 |
| Coliform bacteria | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 3 |
| Colony count 22 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 3 |
| Colony count 36 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 3 |
| Conductivity (25 °C) | 641 µS/cm | 2,790 µS/cm | — | Single value · Versorgungsgebiet 3 |
| pH | 7,27 | 6,5–9,5 | — | Single value · Versorgungsgebiet 3 |
| Sodium | 6,71 mg/l | 200 mg/l | 3 % | Single value · Versorgungsgebiet 3 |
| Temperature | 13,2 °C | — | — | Single value · Versorgungsgebiet 3 |
* 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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 3 / hart | — | — | Single value · Versorgungsgebiet 3 |
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: 91322
Versorgungsgebiet 4
Wasserversorgung GräfenbergAssigned 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 | 15,4 mg/l | 50 mg/l | 31 % | Single value · Versorgungsgebiet 4 |
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 4 |
| Sodium | 2,22 mg/l | 200 mg/l | 1 % | Single value · Versorgungsgebiet 4 |
Show all recorded parameters (13 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 4 |
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | 0,0002 mg/l | 10 µg/l | 2 % | Single value · Versorgungsgebiet 4 |
| Nitrate | 15,4 mg/l | 50 mg/l | 31 % | Single value · Versorgungsgebiet 4 |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value · Versorgungsgebiet 4 |
* 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 | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value · Versorgungsgebiet 4 |
| Coliform bacteria | 0 1/100ml | 0/100 ml | — | Single value · Versorgungsgebiet 4 |
| Colony count 22 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 4 |
| Colony count 36 °C | 0 1/ml | ohne anormale Veränderung | — | Single value · Versorgungsgebiet 4 |
| Conductivity (25 °C) | 578 µS/cm | 2,790 µS/cm | — | Single value · Versorgungsgebiet 4 |
| pH | 7,47 | 6,5–9,5 | — | Single value · Versorgungsgebiet 4 |
| Sodium | 2,22 mg/l | 200 mg/l | 1 % | Single value · Versorgungsgebiet 4 |
| Temperature | 11,4 °C | — | — | Single value · Versorgungsgebiet 4 |
* 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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 3 / hart | — | — | Single value · Versorgungsgebiet 4 |
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: 91322
Frequently asked questions about drinking water in Gräfenberg
- How hard is the water in Gräfenberg?
- Wasserversorgung Gräfenberg publishes the hardness range 11,9 for the supply zone Versorgungsgebiet 1. 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: Stand: Juni 2025, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Gräfenberg?
- Wasserversorgung Gräfenberg publishes a nitrate value of 3,14 mg/l for the supply zone Versorgungsgebiet 1. The statutory parametric value is 50 mg/l; the measured value represents 6 % of the parametric value. Basis: Stand: Juni 2025, retrieved on 13/07/2026.
- Who supplies the drinking water in Gräfenberg?
- Wasserversorgung Gräfenberg. The values shown here come from the supply zone Versorgungsgebiet 1 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.