Drinking water in 72664
One supply zone, water supplier: FairNetz.
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.
Grafenberg
FairNetzAssigned 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 |
|---|---|---|---|---|
| Sum of PFAS | 0,000005 mg/l | — | — | Single value |
| Nitrate | 3,9 mg/l | 50 mg/l | 8 % | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Escherichia coli (E. coli) | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Sulphate | 34,0 mg/l | 250 mg/l | 14 % | Single value |
| Sodium | 5,4 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 (57 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 KBE/100 ml | 0/100 ml | — | Single value |
Chemical parameters (27)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0003 mg/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 | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Benzene | <0,00025 mg/ below limit of quantification | 1 µg/l | — | Single value |
| Benzo(a)pyrene | <0,0000025 mg/l below limit of quantification | 10 ng/l | < 25 % * | Single value |
| Bisphenol A | <0,00001 mg/l below limit of quantification | 2.5 µg/l | < 0.4 % * | Single value |
| Boron | 0,11 mg/ | 1 mg/l | — | Single value |
| Bromate | 0,0021 mg/ | 10 µg/l | — | Single value |
| Cadmium | <0,0005 mg/l below limit of quantification | 3 µg/l | < 17 % * | Single value |
| Chlorate | <0,0200 mg/l below limit of quantification | 70 µg/l | < 29 % * | Single value |
| Chromium | 0,00012 mg/l | 25 µg/l | 0.5 % | Single value |
| Copper | 0,003 mg/l | 2 mg/l | 0.2 % | Single value |
| Cyanide | <0,002 mg/l below limit of quantification | 50 µg/l | < 4 % * | Single value |
| Fluoride | 0,1 mg/l | 1.5 mg/l | 7 % | Single value |
| Haloacetic acids (HAA) | n. b. mg/l not determined | — | — | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Mercury | <0,00005 mg/l below limit of quantification | 1 µg/l | < 5 % * | Single value |
| Nickel | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Single value |
| Nitrate | 3,9 mg/l | 50 mg/l | 8 % | Single value |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Pesticides — Total | n. b. mg/l not determined | 0.5 µg/l | — | Single value |
| Polycyclic aromatic hydrocarbons | n. b. mg/l not determined | 0.1 µg/l | — | Single value |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Tetrachloroethene and Trichloroethene (sum) | n. b. mg/l not determined | 10 µg/l | — | Single value |
| Trihalomethanes — Total | n. b. mg/l not determined | 50 µg/l | — | Single value |
| Uranium | 0,0011 mg/l | 10 µg/l | 11 % | Single value |
| Vinyl chloride | <0,0005 mg/l below limit of quantification | 0.5 µg/l | < 100 % * | 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.
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0,000001 mg/l | — | — | Single value |
| Sum of PFAS | 0,000005 mg/l | — | — | Single value |
Indicator parameters (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Ammonium | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Calcite dissolution capacity | -3,2 mg/l CaCO3 | 5 mg/l CaCO3 | — | Single value |
| Chloride | 7,6 mg/l | 250 mg/l | 3 % | Single value |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/1ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/1ml | ohne anormale Veränderung | — | Single value |
| Colour | <0,1 m-1 below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 338 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | 0,005 mg/l | 0.2 mg/l | 3 % | Single value |
| Manganese | <0,001 mg/l below limit of quantification | 50 µg/l | < 2 % * | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,99 | 6,5–9,5 | — | Single value |
| Sodium | 5,4 mg/l | 200 mg/l | 3 % | Single value |
| Sulphate | 34,0 mg/l | 250 mg/l | 14 % | Single value |
| Taste | ohne | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | 1,08 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | <1,62 NTU below limit of quantification | 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.
Radiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Gross alpha activity | 0,04 Bq/l | — | — | Single value |
| Radon-222 | 0,10 Bq/l | 100 Bq/l | — | Single value |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Base capacity to pH 8.2 | 0,07 mmol/l | — | — | Single value |
| Calcium | 51 mg/l | — | — | Single value |
| Hardness range (WRMG) | mittel | — | — | Single value |
| Magnesium | 8,5 mg/l | — | — | Single value |
| Potassium | 1,30 mg/l | — | — | Single value |
| Total hardness | 1,62 mmol/l (°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.
Frequent questions about postcode 72664
- How hard is the water in Postcode 72664?
- FairNetz publishes a total hardness of 1.6 °dH for the supply zone Grafenberg (hardness range mittel). 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: 12/2025, retrieved on 19/08/2026.
- How much nitrate is in the drinking water in Postcode 72664?
- FairNetz publishes a nitrate value of 3,9 mg/l for the supply zone Grafenberg. The statutory parametric value is 50 mg/l; the measured value represents 8 % of the parametric value. Basis: 12/2025, retrieved on 19/08/2026.
- Who supplies the drinking water in Postcode 72664?
- FairNetz. The values shown here come from the supply zone Grafenberg 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.