Drinking water in Schwanau
2 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.
GWM Neu Nonnenweier
SchwanauAssigned 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 | 22,3 mg/l | 50 mg/l | 45 % | Single value |
Show all recorded parameters (18 — most recent value per parameter)
Chemical parameters (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Nitrate | 22,3 mg/l | 50 mg/l | 45 % | Single value |
| Nitrite | 0,05 mg/l | 0.5 mg/l | 10 % | 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.
Indicator parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,010 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Colour | farblos -- | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 803 µS/cm | 2,790 µS/cm | — | Single value |
| Odour | ohn -- | für den Verbraucher annehmbar | — | Single value |
| pH | 7,2 -- | 6,5–9,5 | — | Single value |
| Temperature | 12,8 °C | — | — | Single value |
| Turbidity | ohne -- | 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 (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 6,15 mmol/l | — | — | Single value |
| Base capacity to pH 8.2 | 0,50 mmol/l | — | — | Single value |
| Calcium | 133 mg/l | — | — | Single value |
| Hardness range (WRMG) | hart -- | — | — | Single value |
| Magnesium | 17,6 mg/l | — | — | Single value |
| Oxygen | <0,2 mg/l below limit of quantification | — | — | Single value |
| Oxygen saturation | <1,0 % below limit of quantification | — | — | Single value |
| Total hardness | 4,04 mmol/l | — | — | 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.
Postcodes in this zone: 77963
Show 1 more supply zone
ON Meissenheim
SchwanauAssigned 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | -- µg/l not determined | 0.1 µg/l | — | Single value |
| Nitrate | 11 mg/l | 50 mg/l | 22 % | 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 | 51 mg/l | 250 mg/l | 20 % | Single value |
| Sodium | 16 mg/l | 200 mg/l | 8 % | 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 (96 — 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 (52)
| 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 |
| 2,6-Dichlorobenzamide (BAM) | <0,02 µg/l below limit of quantification | — | — | Single value |
| Acrylamide | <0,05000 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | 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 |
| Atrazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Benzene | <0,2500 µg/l below limit of quantification | 1 µg/l | < 25 % * | Single value |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Benzo(b)fluoranthene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Bisphenol A | <0,05 µg/l below limit of quantification | 2.5 µg/l | < 2 % * | Single value |
| Boron | 0,02 mg/l | 1 mg/l | 2 % | Single value |
| Bromacil | <0,02 µg/l below limit of quantification | — | — | Single value |
| Bromate | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Bromodichloromethane | <0,0003 mg/l below limit of quantification | — | — | Single value |
| Cadmium | <0,0001 mg/l below limit of quantification | 3 µg/l | < 3 % * | Single value |
| Chloridazon | <0,02 µg/l below limit of quantification | — | — | Single value |
| Chlorotoluron | <0,02 µg/l below limit of quantification | — | — | Single value |
| Chromium | <0,001 mg/l below limit of quantification | 25 µg/l | < 4 % * | Single value |
| Copper | 0,004 mg/l | 2 mg/l | 0.2 % | Single value |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Desethylatrazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Desethylterbuthylazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Dibromochloromethane | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Epichlorohydrin | <0,0500 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Fluoride | 0,10 mg/l | 1.5 mg/l | 7 % | Single value |
| Indeno(1,2,3-cd)pyrene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Mercury | <0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Metalaxyl | <0,02 µg/l below limit of quantification | — | — | Single value |
| Metazachlor | <0,02 µg/l below limit of quantification | — | — | Single value |
| Metolachlor | <0,02 µg/l below limit of quantification | — | — | Single value |
| Nickel | <0,001 mg/l below limit of quantification | 20 µg/l | < 5 % * | Single value |
| Nitrate | 11 mg/l | 50 mg/l | 22 % | Single value |
| Nitrate/50 + Nitrite/3 | 0,21 mg/l | 1 | — | Single value |
| Nitrite | <0,005 mg/l below limit of quantification | 0.5 mg/l | < 1 % * | Single value |
| Polycyclic aromatic hydrocarbons | -- µg/l not determined | 0.1 µg/l | — | Single value |
| Propazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Sebuthylazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Simazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,02 µg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,0001 mg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene and Trichloroethene (sum) | -- mg/l not determined | 10 µg/l | — | Single value |
| Tribromomethane (bromoform) | <0,001 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,001 mg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | <0,0003 mg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | -- mg/l not determined | 50 µg/l | — | Single value |
| Uranium | 0,0006 mg/l | 10 µg/l | 6 % | Single value |
| Vinyl chloride | <0,2 µg/l below limit of quantification | 0.5 µg/l | < 40 % * | 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 (22)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorobutane sulfonic acid (PFBS) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorobutanoic acid (PFBA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorodecane sulfonic acid (PFDS) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorodecanoic acid (PFDA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorododecane sulfonic acid (PFDoDS) | <0,005 µg/l below limit of quantification | — | — | Single value |
| Perfluorododecanoic acid (PFDoDA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluoroheptane sulfonic acid (PFHpS) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluoroheptanoic acid (PFHpA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorohexane sulfonic acid (PFHxS) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorohexanoic acid (PFHxA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorononane sulfonic acid (PFNS) | <0,005 µg/l below limit of quantification | — | — | Single value |
| Perfluorononanoic acid (PFNA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorooctanesulfonic acid (PFOS) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorooctanoic acid (PFOA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluoropentanesulfonic acid (PFPeS) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluoropentanoic acid (PFPeA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Perfluorotridecanesulfonic acid (PFTrDS) | <0,005 µg/l below limit of quantification | — | — | Single value |
| Perfluorotridecanoic acid (PFTrDA) | <0,005 µg/l below limit of quantification | — | — | Single value |
| Perfluoroundecanesulfonic acid (PFUnDS) | <0,005 µg/l below limit of quantification | — | — | Single value |
| Perfluoroundecanoic acid (PFUnDA) | <0,001 µg/l below limit of quantification | — | — | Single value |
| Sum of 4 PFAS | -- µg/l not determined | — | — | Single value |
| Sum of PFAS | -- µg/l not determined | 0.1 µg/l | — | Single value |
Indicator parameters (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,005 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Single value |
| Ammonium | <0,010 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Calcite dissolution capacity | -37,5 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 33 mg/l | 250 mg/l | 13 % | Single value |
| Coliform bacteria | 0 KBE/100 ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | <0,10 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 676 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 | <0,003 mg/l below limit of quantification | 50 µg/l | < 6 % * | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,3 | 6,5–9,5 | — | Single value |
| Sodium | 16 mg/l | 200 mg/l | 8 % | Single value |
| Sulphate | 51 mg/l | 250 mg/l | 20 % | Single value |
| Temperature | 14,5 °C | — | — | Single value |
| Total organic carbon (TOC) | 1,0 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,14 FNU | 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 (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Hardness range (WRMG) | hart | — | — | Single value |
| Total hardness | 22,2 °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.
Postcodes in this zone: 77963
Frequently asked questions about drinking water in Schwanau
- How hard is the water in Schwanau?
- Schwanau publishes a total hardness of 4,04 mmol/l for the supply zone GWM Neu Nonnenweier — that corresponds to 22.7 °dH. 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 08/08/2026.
- How much nitrate is in the drinking water in Schwanau?
- Schwanau publishes a nitrate value of 22,3 mg/l for the supply zone GWM Neu Nonnenweier. The statutory parametric value is 50 mg/l; the measured value represents 45 % of the parametric value. Basis: Publication by the water supplier, retrieved on 08/08/2026.
- Who supplies the drinking water in Schwanau?
- Schwanau. The values shown here come from the supply zone GWM Neu Nonnenweier 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.