Drinking water in 91322
For this postcode Wasserversorgung Gräfenberg 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 3 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.
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.
Show 3 more supply zones in this postcode
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.
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.
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.
Frequent questions about postcode 91322
- How hard is the water in Postcode 91322?
- 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 Postcode 91322?
- 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 Postcode 91322?
- 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.