Drinking water in Freising
One supply zone, water supplier: Freisinger Stadtwerke.
How to read the share of the parametric value
12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.
< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.
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.
Versorgungsnetz Stadt Freising und Orte Altenhausen, Ast, Attaching, Dürnast, Edenhofen, Erlau, Garten, Gartelshausen, Haindlfing, Haxthausen, Hohenbachern, Itzling, Kleinbachern, Lageltshausen, Pallhausen, Pellhausen, Piesing, Sünzhausen (Ortsteil östlich der Bergstraße), Tüntenhausen, Untergartelshausen, Vötting, Weihenstephan, Wies, Zellhausen und Zurnhausen
Freisinger StadtwerkeAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
19.4 °dH
Hardness range hart
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 mg/l | 0.1 µg/l | 0 % | Single value |
| Nitrate | 20 mg/l | 50 mg/l | 40 % | Single value |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Escherichia coli (E. coli) | 0 Keime/100 ml | 0/100 ml | — | Single value |
| Sulphate | 36,8 mg/l | 250 mg/l | 15 % | Single value |
| Sodium | 23,77 mg/l | 200 mg/l | 12 % | 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 (52 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Keime/100 ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 Keime/100 ml | 0/100 ml | — | Single value |
Chemical parameters (25)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,0005 mg/l below limit of quantification | 3 µg/l | < 17 % * | Single value |
| Acrylamide | <0,00001 mg/l below limit of quantification | 0.1 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 | < 0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Benzo(a)pyrene | < 0,000002 mg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Bisphenol A | < 0,00005 mg/l below limit of quantification | 2.5 µg/l | < 2 % * | Single value |
| Boron | 0,03 mg/l | 1 mg/l | 3 % | Single value |
| Bromate | < 0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Cadmium | < 0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Copper | < 0,01 mg/l below limit of quantification | 2 mg/l | < 0.5 % * | Single value |
| Cyanide | < 0,015 mg/l below limit of quantification | 50 µg/l | < 30 % * | Single value |
| Epichlorohydrin | < 0,00003 mg/l below limit of quantification | 0.1 µg/l | < 30 % * | Single value |
| Fluoride | 0,11 mg/l | 1.5 mg/l | 7 % | Single value |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Mercury | < 0,0002 mg/l below limit of quantification | 1 µg/l | < 20 % * | Single value |
| Nickel | < 0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Single value |
| Nitrate | 20 mg/l | 50 mg/l | 40 % | Single value |
| Nitrite | < 0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Polycyclic aromatic hydrocarbons | 0 mg/l | 0.1 µg/l | 0 % | Single value |
| Selenium | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Trihalomethanes — Total | 0 mg/l | 50 µg/l | 0 % | Single value |
| Uranium | 0,002 mg/l | 10 µg/l | 20 % | Single value |
| Vinyl chloride | < 0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | 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 mg/l | — | — | Single value |
| Sum of PFAS | 0 mg/l | 0.1 µg/l | 0 % | Single value |
Indicator parameters (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0,01 mg/l | 0.2 mg/l | 5 % | Single value |
| Ammonium | < 0,10 mg/l below limit of quantification | 0.5 mg/l | < 20 % * | Single value |
| Calcite dissolution capacity | -7,31 mg/l CaCO3 | 5 mg/l CaCO3 | — | Single value |
| Chloride | 32,9 mg/l | 250 mg/l | 13 % | Single value |
| Clostridium perfringens (including spores) | 0 Keime/100 ml | 0/100 ml | — | Single value |
| Coliform bacteria | 0 Keime/100 ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 Anzahl/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 Anzahl/ml | ohne anormale Veränderung | — | Single value |
| Colour | < 0,10 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 759 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 | < 0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| pH | 7,27 pH-Einheiten | 6,5–9,5 | — | Single value |
| Sodium | 23,77 mg/l | 200 mg/l | 12 % | Single value |
| Sulphate | 36,8 mg/l | 250 mg/l | 15 % | Single value |
| Taste | ohne | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | < 0,20 mg/l C below limit of quantification | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,02 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 (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 95,48 mg/l | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Magnesium | 26,36 mg/l | — | — | Single value |
| Potassium | 3,07 mg/l | — | — | Single value |
| Total hardness | 19,4 °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.
Source: https://www.freisinger-stadtwerke.de/de/Energie-Wasser/Wasser/Aktuelle-Informationen/Aktuelle-Informationen/Trinkwasseranalyse-2026.pdf · Probenentnahme vom 19.01.2026 · retrieved on 11/07/2026
Postcodes in this zone: 85354 , 85356
Frequently asked questions about drinking water in Freising
- How hard is the water in Freising?
- Freisinger Stadtwerke publishes a total hardness of 19.4 °dH for the supply zone Versorgungsnetz Stadt Freising und Orte Altenhausen, Ast, Attaching, Dürnast, Edenhofen, Erlau, Garten, Gartelshausen, Haindlfing, Haxthausen, Hohenbachern, Itzling, Kleinbachern, Lageltshausen, Pallhausen, Pellhausen, Piesing, Sünzhausen (Ortsteil östlich der Bergstraße), Tüntenhausen, Untergartelshausen, Vötting, Weihenstephan, Wies, Zellhausen und Zurnhausen (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 11/07/2026.
- How much nitrate is in the drinking water in Freising?
- Freisinger Stadtwerke publishes a nitrate value of 20 mg/l for the supply zone Versorgungsnetz Stadt Freising und Orte Altenhausen, Ast, Attaching, Dürnast, Edenhofen, Erlau, Garten, Gartelshausen, Haindlfing, Haxthausen, Hohenbachern, Itzling, Kleinbachern, Lageltshausen, Pallhausen, Pellhausen, Piesing, Sünzhausen (Ortsteil östlich der Bergstraße), Tüntenhausen, Untergartelshausen, Vötting, Weihenstephan, Wies, Zellhausen und Zurnhausen. The statutory parametric value is 50 mg/l; the measured value represents 40 % of the parametric value. Basis: Publication by the water supplier, retrieved on 11/07/2026.
- Are PFAS detectable in the drinking water in Freising?
- Freisinger Stadtwerke publishes for the supply zone Versorgungsnetz Stadt Freising und Orte Altenhausen, Ast, Attaching, Dürnast, Edenhofen, Erlau, Garten, Gartelshausen, Haindlfing, Haxthausen, Hohenbachern, Itzling, Kleinbachern, Lageltshausen, Pallhausen, Pellhausen, Piesing, Sünzhausen (Ortsteil östlich der Bergstraße), Tüntenhausen, Untergartelshausen, Vötting, Weihenstephan, Wies, Zellhausen und Zurnhausen a sum value PFAS-20 of 0 mg/l (0 µg/l). The statutory parametric value is 0.1 µg/l; the measured value represents 0 % of the parametric value. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: Publication by the water supplier, retrieved on 11/07/2026.
- Who supplies the drinking water in Freising?
- Freisinger Stadtwerke. The values shown here come from the supply zone Versorgungsnetz Stadt Freising und Orte Altenhausen, Ast, Attaching, Dürnast, Edenhofen, Erlau, Garten, Gartelshausen, Haindlfing, Haxthausen, Hohenbachern, Itzling, Kleinbachern, Lageltshausen, Pallhausen, Pellhausen, Piesing, Sünzhausen (Ortsteil östlich der Bergstraße), Tüntenhausen, Untergartelshausen, Vötting, Weihenstephan, Wies, Zellhausen und Zurnhausen 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.