Drinking water in Offenbach am Main
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
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.
Offenbach am Main (ausgenommen sind Stadtteile Hafen, Kaiserlei, nördliches Nordend)
Zweckverband Wasserversorgung Stadt und Kreis OffenbachAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
13.8 °dH
Hardness range mittel
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 27,8 mg/l | 50 mg/l | 56 % | Maximum |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum |
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Sulphate | 83,9 mg/l | 250 mg/l | 34 % | Maximum |
| Sodium | 19,9 mg/l | 200 mg/l | 10 % | Maximum |
* 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 (82 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Intestinal enterococci | 0 KBE/ml | 0/100 ml | — | Maximum |
Chemical parameters (53)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Maximum |
| Acrylamide | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Maximum |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Maximum |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum |
| Atrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Bentazone | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Benzene | <0,3 µg/l below limit of quantification | 1 µg/l | < 30 % * | Maximum |
| Benzo(a)pyrene | <0,003 µg/l below limit of quantification | 10 ng/l | < 30 % * | Maximum |
| Bisphenol A | <0,1 µg/l below limit of quantification | 2.5 µg/l | < 4 % * | Maximum |
| Boron | 0,034 mg/l | 1 mg/l | 3 % | Maximum |
| Bromacil | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Maximum |
| Bromodichloromethane | <0,3 µg/l below limit of quantification | — | — | Maximum |
| Cadmium | <0,9 µg/l below limit of quantification | 3 µg/l | < 30 % * | Maximum |
| Carbofuran | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Chlorotoluron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Chromium | <0,5 µg/l below limit of quantification | 25 µg/l | < 2 % * | Maximum |
| Copper | 14,8 µg/l | 2 mg/l | 0.7 % | Maximum |
| Cyanide | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Maximum |
| Desethylatrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Desisopropylatrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Dibromochloromethane | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Dichlorprop | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Diuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Epichlorohydrin | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Maximum |
| Fluoride | 0,059 mg/l | 1.5 mg/l | 4 % | Maximum |
| Hexazinone | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Isoproturon | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum |
| MCPA | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Mecoprop | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Maximum |
| Metazachlor | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Methabenzthiazuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Metobromuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Monuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Nickel | <6 µg/l below limit of quantification | 20 µg/l | < 30 % * | Maximum |
| Nitrate | 27,8 mg/l | 50 mg/l | 56 % | Maximum |
| Nitrite | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Maximum |
| Polycyclic aromatic hydrocarbons | < BG µg/l not detectable | 0.1 µg/l | — | Maximum |
| Propazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Sebuthylazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Selenium | <3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Maximum |
| Simazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Terbuthylazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Tetrachloroethene | 0,99 µg/l | — | — | Maximum |
| Tetrachloroethene and Trichloroethene (sum) | 1,32 µg/l | 10 µg/l | 13 % | Maximum |
| Tribromomethane (bromoform) | <0,3 µg/l below limit of quantification | — | — | Maximum |
| Trichloroethene | 0,33 µg/l | — | — | Maximum |
| Trichloromethane (chloroform) | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Trihalomethanes — Total | < BG µg/l not detectable | 50 µg/l | — | Maximum |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Maximum |
| Vinyl chloride | <0,2 µg/l below limit of quantification | 0.5 µg/l | < 40 % * | Maximum |
* 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 (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Maximum |
| Ammonium | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Maximum |
| Calcite dissolution capacity | -1,92 mg/l | 5 mg/l CaCO3 | — | Maximum |
| Chloride | 38,5 mg/l | 250 mg/l | 15 % | Maximum |
| Coliform bacteria | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Colony count 22 °C | 2 KBE/ml | ohne anormale Veränderung | — | Maximum |
| Colony count 36 °C | 3 KBE/ml | ohne anormale Veränderung | — | Maximum |
| Colour | <0,1 m-1 below limit of quantification | 0.5 m⁻¹ | — | Maximum |
| Iron | <0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Maximum |
| Manganese | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Maximum |
| Odour | ohne | für den Verbraucher annehmbar | — | Maximum |
| pH | 8,17 | 6,5–9,5 | — | Maximum |
| Sodium | 19,9 mg/l | 200 mg/l | 10 % | Maximum |
| Sulphate | 83,9 mg/l | 250 mg/l | 34 % | Maximum |
| Taste | ohne | für den Verbraucher annehmbar | — | Maximum |
| Temperature | 11,2 °C | — | — | Maximum |
| Total organic carbon (TOC) | 1,84 mg/l | ohne anormale Veränderung | — | Maximum |
| Turbidity | 0,65 NTU | 1 NTU | — | Maximum |
* 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,36 mmol/l | — | — | Maximum |
| Base capacity to pH 8.2 | 0,107 mmol/l | — | — | Maximum |
| Calcium | 69,1 mg/l | — | — | Maximum |
| Carbonate hardness | 6,629 °dKH | — | — | Maximum |
| Hardness range (WRMG) | mittel | — | — | Maximum |
| Hydrogen carbonate | 141 mg/l | — | — | Maximum |
| Magnesium | 17,9 mg/l | — | — | Maximum |
| Potassium | 4,09 mg/l | — | — | Maximum |
| Total hardness | 13,8 °dH | — | — | Maximum |
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.zwo-wasser.de/files/VG7.pdf · 05.05.2026 · 1. Quartal 2026 · retrieved on 11/07/2026
Postcodes in this zone: 63065 , 63067 , 63069 , 63071 , 63073 , 63075
Show 3 more supply zones
Langen (teilversorgt), Egelsbach (teilversorgt), Dreieich (Dreieichenhain, Götzenhain)
Zweckverband Wasserversorgung Stadt und Kreis OffenbachAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
18.5 °dH
Hardness range hart
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 14,7 mg/l | 50 mg/l | 29 % | Maximum |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum |
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Sulphate | 77,1 mg/l | 250 mg/l | 31 % | Maximum |
| Sodium | 11,3 mg/l | 200 mg/l | 6 % | Maximum |
* 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 (82 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Intestinal enterococci | 0 KBE/ml | 0/100 ml | — | Maximum |
Chemical parameters (53)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Maximum |
| Acrylamide | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Maximum |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Maximum |
| Arsenic | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum |
| Atrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Bentazone | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Benzene | <0,3 µg/l below limit of quantification | 1 µg/l | < 30 % * | Maximum |
| Benzo(a)pyrene | <0,003 µg/l below limit of quantification | 10 ng/l | < 30 % * | Maximum |
| Bisphenol A | <0,1 µg/l below limit of quantification | 2.5 µg/l | < 4 % * | Maximum |
| Boron | 0,014 mg/l | 1 mg/l | 1 % | Maximum |
| Bromacil | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Maximum |
| Bromodichloromethane | <0,3 µg/l below limit of quantification | — | — | Maximum |
| Cadmium | <0,9 µg/l below limit of quantification | 3 µg/l | < 30 % * | Maximum |
| Carbofuran | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Chlorotoluron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Chromium | <0,5 µg/l below limit of quantification | 25 µg/l | < 2 % * | Maximum |
| Copper | <10 µg/l below limit of quantification | 2 mg/l | < 0.5 % * | Maximum |
| Cyanide | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Maximum |
| Desethylatrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Desisopropylatrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Dibromochloromethane | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Dichlorprop | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Diuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Epichlorohydrin | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Maximum |
| Fluoride | 0,066 mg/l | 1.5 mg/l | 4 % | Maximum |
| Hexazinone | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Isoproturon | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Lead | <1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum |
| MCPA | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Mecoprop | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Mercury | <0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Maximum |
| Metazachlor | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Methabenzthiazuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Metobromuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Monuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Nickel | <6 µg/l below limit of quantification | 20 µg/l | < 30 % * | Maximum |
| Nitrate | 14,7 mg/l | 50 mg/l | 29 % | Maximum |
| Nitrite | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Maximum |
| Polycyclic aromatic hydrocarbons | < BG µg/l below limit of quantification | 0.1 µg/l | — | Maximum |
| Propazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Sebuthylazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Selenium | <3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Maximum |
| Simazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Terbuthylazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Tetrachloroethene | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Tetrachloroethene and Trichloroethene (sum) | <BG µg/l below limit of quantification | 10 µg/l | — | Maximum |
| Tribromomethane (bromoform) | <0,3 µg/l below limit of quantification | — | — | Maximum |
| Trichloroethene | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Trichloromethane (chloroform) | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Trihalomethanes — Total | <BG µg/l below limit of quantification | 50 µg/l | — | Maximum |
| Uranium | 4,24 µg/l | 10 µg/l | 42 % | Maximum |
| Vinyl chloride | <0,2 µg/l below limit of quantification | 0.5 µg/l | < 40 % * | Maximum |
* 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 (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Maximum |
| Ammonium | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Maximum |
| Calcite dissolution capacity | -7,1 mg/l | 5 mg/l CaCO3 | — | Maximum |
| Chloride | 26,8 mg/l | 250 mg/l | 11 % | Maximum |
| Coliform bacteria | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Maximum |
| Colony count 36 °C | 2 KBE/ml | ohne anormale Veränderung | — | Maximum |
| Colour | <0,1 m-1 below limit of quantification | 0.5 m⁻¹ | — | Maximum |
| Iron | <0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Maximum |
| Manganese | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Maximum |
| Odour | ohne | für den Verbraucher annehmbar | — | Maximum |
| pH | 7,53 | 6,5–9,5 | — | Maximum |
| Sodium | 11,3 mg/l | 200 mg/l | 6 % | Maximum |
| Sulphate | 77,1 mg/l | 250 mg/l | 31 % | Maximum |
| Taste | ohne | für den Verbraucher annehmbar | — | Maximum |
| Temperature | 11,2 °C | — | — | Maximum |
| Total organic carbon (TOC) | 0,859 mg/l | ohne anormale Veränderung | — | Maximum |
| Turbidity | 0,174 NTU | 1 NTU | — | Maximum |
* 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 4,4 mmol/l | — | — | Maximum |
| Base capacity to pH 8.2 | 0,285 mmol/l | — | — | Maximum |
| Calcium | 104 mg/l | — | — | Maximum |
| Carbonate hardness | 12,360 °dKH | — | — | Maximum |
| Hardness range (WRMG) | hart | — | — | Maximum |
| Hydrogen carbonate | 266 mg/l | — | — | Maximum |
| Magnesium | 17,4 mg/l | — | — | Maximum |
| Potassium | 2,65 mg/l | — | — | Maximum |
| Total hardness | 18,5 °dH | — | — | Maximum |
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.zwo-wasser.de/files/VG6.pdf · 05.05.2026 · 1. Quartal 2026 · retrieved on 11/07/2026
Postcodes in this zone: 63065 , 63067 , 63069 , 63071 , 63073 , 63075
Rodgau (ohne Nieder-Roden), Mühlheim-Lämmerspiel, Obertshausen, Hanau-Steinheim, Hanau-Klein Auheim, Heusenstamm-Rembrücken
Zweckverband Wasserversorgung Stadt und Kreis OffenbachAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
10.1 °dH
Hardness range weich
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | < BG µg/l not detectable | 0.1 µg/l | — | Maximum |
| Nitrate | 12,2 mg/l | 50 mg/l | 24 % | Maximum |
| Lead | <3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Maximum |
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Sulphate | 44 mg/l | 250 mg/l | 18 % | Maximum |
| Sodium | 11,7 mg/l | 200 mg/l | 6 % | Maximum |
* 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 (86 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Intestinal enterococci | 0 KBE/ml | 0/100 ml | — | Maximum |
Chemical parameters (53)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,2 µg/l below limit of quantification | 3 µg/l | < 7 % * | Maximum |
| Acrylamide | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Maximum |
| Antimony | <1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Maximum |
| Arsenic | <3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Maximum |
| Atrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Bentazone | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Benzene | <0,3 µg/l below limit of quantification | 1 µg/l | < 30 % * | Maximum |
| Benzo(a)pyrene | <0,003 µg/l below limit of quantification | 10 ng/l | < 30 % * | Maximum |
| Bisphenol A | <0,1 µg/l below limit of quantification | 2.5 µg/l | < 4 % * | Maximum |
| Boron | <0,05 mg/l below limit of quantification | 1 mg/l | < 5 % * | Maximum |
| Bromacil | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Maximum |
| Bromodichloromethane | <0,3 µg/l below limit of quantification | — | — | Maximum |
| Cadmium | <0,9 µg/l below limit of quantification | 3 µg/l | < 30 % * | Maximum |
| Carbofuran | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Chlorotoluron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Chromium | <0,5 µg/l below limit of quantification | 25 µg/l | < 2 % * | Maximum |
| Copper | <10 µg/l below limit of quantification | 2 mg/l | < 0.5 % * | Maximum |
| Cyanide | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Maximum |
| Desethylatrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Desisopropylatrazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Dibromochloromethane | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Dichlorprop | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Diuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Epichlorohydrin | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Maximum |
| Fluoride | <0,05 mg/l below limit of quantification | 1.5 mg/l | < 3 % * | Maximum |
| Hexazinone | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Isoproturon | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Lead | <3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Maximum |
| MCPA | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Mecoprop | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Mercury | <0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Maximum |
| Metazachlor | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Methabenzthiazuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Metobromuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Monuron | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Nickel | <6 µg/l below limit of quantification | 20 µg/l | < 30 % * | Maximum |
| Nitrate | 12,2 mg/l | 50 mg/l | 24 % | Maximum |
| Nitrite | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Maximum |
| Polycyclic aromatic hydrocarbons | < BG µg/l below limit of quantification | 0.1 µg/l | — | Maximum |
| Propazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Sebuthylazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Selenium | <3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Maximum |
| Simazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Terbuthylazine | <0,01 µg/l below limit of quantification | — | — | Maximum |
| Tetrachloroethene | 1,11 µg/l | — | — | Maximum |
| Tetrachloroethene and Trichloroethene (sum) | 1,5 µg/l | 10 µg/l | 15 % | Maximum |
| Tribromomethane (bromoform) | <0,3 µg/l below limit of quantification | — | — | Maximum |
| Trichloroethene | 0,39 µg/l | — | — | Maximum |
| Trichloromethane (chloroform) | <0,2 µg/l below limit of quantification | — | — | Maximum |
| Trihalomethanes — Total | < BG µg/l below limit of quantification | 50 µg/l | — | Maximum |
| Uranium | <0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Maximum |
| Vinyl chloride | <0,1 µg/l below limit of quantification | 0.5 µg/l | < 20 % * | Maximum |
* 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 | < BG µg/l not detectable | — | — | Maximum |
| Sum of PFAS | < BG µg/l not detectable | 0.1 µg/l | — | Maximum |
Indicator parameters (19)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Maximum |
| Ammonium | <0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Maximum |
| Calcite dissolution capacity | 0,708 mg/l | 5 mg/l CaCO3 | — | Maximum |
| Chloride | 23,2 mg/l | 250 mg/l | 9 % | Maximum |
| Coliform bacteria | 0 MPN/100ml | 0/100 ml | — | Maximum |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Maximum |
| Colony count 36 °C | 2 KBE/ml | ohne anormale Veränderung | — | Maximum |
| Colour | <0,1 m-1 below limit of quantification | 0.5 m⁻¹ | — | Maximum |
| Conductivity (25 °C) | 439 µS/cm | 2,790 µS/cm | — | Maximum |
| Iron | 0,011 mg/l | 0.2 mg/l | 5 % | Maximum |
| Manganese | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Maximum |
| Odour | ohne | für den Verbraucher annehmbar | — | Maximum |
| pH | 8,01 | 6,5–9,5 | — | Maximum |
| Sodium | 11,7 mg/l | 200 mg/l | 6 % | Maximum |
| Sulphate | 44 mg/l | 250 mg/l | 18 % | Maximum |
| Taste | ohne | für den Verbraucher annehmbar | — | Maximum |
| Temperature | 10,9 °C | — | — | Maximum |
| Total organic carbon (TOC) | 1,1 mg/l | ohne anormale Veränderung | — | Maximum |
| Turbidity | 0,242 NTU | 1 NTU | — | Maximum |
* 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 (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 2,26 mmol/l | — | — | Maximum |
| Base capacity to pH 8.2 | 0,071 mmol/l | — | — | Maximum |
| Calcium | 53,3 mg/l | — | — | Maximum |
| Carbonate hardness | 6,348 °dKH | — | — | Maximum |
| Hardness range (WRMG) | weich | — | — | Maximum |
| Hydrogen carbonate | 135 mg/l | — | — | Maximum |
| Magnesium | 11,6 mg/l | — | — | Maximum |
| Oxygen | 10,2 mg/l | — | — | Maximum |
| Potassium | 2,2 mg/l | — | — | Maximum |
| Total hardness | 10,1 °dH | — | — | Maximum |
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.zwo-wasser.de/files/VG3.pdf · 05.05.2026 · 1. Quartal 2026 · retrieved on 11/07/2026
Postcodes in this zone: 63065 , 63067 , 63069 , 63071 , 63073 , 63075
Offenbach am Main
Zweckverband Wasserversorgung Stadt und Kreis OffenbachAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.
Water hardness
13.7 °dH
Hardness range medium
No core values are available for this zone yet.
Show all recorded parameters (1 — most recent value per parameter)
Further parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Total hardness | 2,44 mmol/l | — | — | Maximum · Offenbach am Main |
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: dreieich-ed73d410.html · retrieved on 11/07/2026
Postcodes in this zone: 63065 , 63067 , 63069 , 63071 , 63073 , 63075
Frequently asked questions about drinking water in Offenbach am Main
- How hard is the water in Offenbach am Main?
- Zweckverband Wasserversorgung Stadt und Kreis Offenbach publishes a total hardness of 13.8 °dH for the supply zone Offenbach am Main (ausgenommen sind Stadtteile Hafen, Kaiserlei, nördliches Nordend) (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: 05.05.2026, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Offenbach am Main?
- Zweckverband Wasserversorgung Stadt und Kreis Offenbach publishes a nitrate value of 27,8 mg/l for the supply zone Offenbach am Main (ausgenommen sind Stadtteile Hafen, Kaiserlei, nördliches Nordend). The statutory parametric value is 50 mg/l; the measured value represents 56 % of the parametric value. Basis: 05.05.2026, retrieved on 11/07/2026.
- Who supplies the drinking water in Offenbach am Main?
- Zweckverband Wasserversorgung Stadt und Kreis Offenbach. The values shown here come from the supply zone Offenbach am Main (ausgenommen sind Stadtteile Hafen, Kaiserlei, nördliches Nordend) 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.