Drinking water in Baunatal
10 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.
Baunatal - Altenbauna, Entnahmeort Bornhagen 2, Entnahmestelle Kindergarten Birkenallee
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned 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 | n. n. mg/l not detectable | 0.1 µg/l | — | Single value |
| Nitrate | 10 mg NO3/l | 50 mg/l | — | Single value |
| Lead | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Escherichia coli (E. coli) | 0 Anzahl/100 ml | 0/100 ml | — | Single value |
| Sulphate | 40 mg/l | 250 mg/l | 16 % | Single value |
| Sodium | 14 mg/l | 200 mg/l | 7 % | 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 (71 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100 ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 Anzahl/100 ml | 0/100 ml | — | Single value |
Chemical parameters (30)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0009 mg/l below limit of quantification | 3 µg/l | < 30 % * | Single value |
| Acrylamide | <0,00003 mg/l below limit of quantification | 0.1 µg/l | < 30 % * | Single value |
| Antimony | <0,0015 mg/l below limit of quantification | 5 µg/l | < 30 % * | Single value |
| Arsenic | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Benzene | <0,0003 mg/l below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Benzo(a)pyrene | <0,0000025 mg/l below limit of quantification | 10 ng/l | < 25 % * | Single value |
| Benzo(b)fluoranthene | <0,0000055 mg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,0000055 mg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,0000055 mg/l below limit of quantification | — | — | Single value |
| Bisphenol A | <0,0005 mg/l below limit of quantification | 2.5 µg/l | < 20 % * | Single value |
| Boron | <0,03 mg/l below limit of quantification | 1 mg/l | < 3 % * | Single value |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Single value |
| Cadmium | <0,0009 mg/l below limit of quantification | 3 µg/l | < 30 % * | Single value |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Copper | 0,028 mg/l | 2 mg/l | 1 % | Single value |
| Cyanide | <0,015 mg/l below limit of quantification | 50 µg/l | < 30 % * | Single value |
| Epichlorohydrin | <0,00005 mg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Fluoride | <0,45 mg/l below limit of quantification | 1.5 mg/l | < 30 % * | Single value |
| Indeno(1,2,3-cd)pyrene | <0,0000055 mg/l below limit of quantification | — | — | Single value |
| Lead | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Mercury | <0,0002 mg/l below limit of quantification | 1 µg/l | < 20 % * | Single value |
| Nickel | <0,006 mg/l below limit of quantification | 20 µg/l | < 30 % * | Single value |
| Nitrate | 10 mg NO3/l | 50 mg/l | — | Single value |
| Nitrite | <0,15 mg NO2/l below limit of quantification | 0.5 mg/l | — | Single value |
| Polycyclic aromatic hydrocarbons | <0,000025 mg/l below limit of quantification | 0.1 µg/l | < 25 % * | Single value |
| Selenium | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Tetrachloroethene | <0,001 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,001 mg/l below limit of quantification | — | — | Single value |
| Uranium | 0,0032 mg/l | 10 µg/l | 32 % | 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 (21)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorobutane sulfonic acid (PFBS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorobutanoic acid (PFBA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorodecane sulfonic acid (PFDS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorodecanoic acid (PFDA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorododecane sulfonic acid (PFDoDS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorododecanoic acid (PFDoDA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluoroheptane sulfonic acid (PFHpS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluoroheptanoic acid (PFHpA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorohexane sulfonic acid (PFHxS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorohexanoic acid (PFHxA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorononane sulfonic acid (PFNS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorononanoic acid (PFNA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorooctanesulfonic acid (PFOS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorooctanoic acid (PFOA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluoropentanesulfonic acid (PFPeS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluoropentanoic acid (PFPeA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorotridecanesulfonic acid (PFTrDS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluorotridecanoic acid (PFTrDA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluoroundecanesulfonic acid (PFUnDS) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Perfluoroundecanoic acid (PFUnDA) | <0,00001 mg/l below limit of quantification | — | — | Single value |
| Sum of PFAS | n. n. mg/l not detectable | 0.1 µg/l | — | Single value |
Indicator parameters (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,06 mg/l below limit of quantification | 0.2 mg/l | < 30 % * | Single value |
| Ammonium | <0,08 mg NH4/l below limit of quantification | 0.5 mg/l | — | Single value |
| Calcite dissolution capacity | -2,8 mg CaCO3/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 20 mg/l | 250 mg/l | 8 % | Single value |
| Coliform bacteria | 0 Anzahl/100 ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/1 ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/1 ml | ohne anormale Veränderung | — | Single value |
| Conductivity (25 °C) | 506 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | <0,03 mg/l below limit of quantification | 0.2 mg/l | < 15 % * | Single value |
| Manganese | <0,015 mg/l below limit of quantification | 50 µg/l | < 30 % * | Single value |
| Odour | ohne - | für den Verbraucher annehmbar | — | Single value |
| Oxidisability | <1 mg O2/l below limit of quantification | 5 mg/l O2 | — | Single value |
| pH | 7,7 - | 6,5–9,5 | — | Single value |
| Sodium | 14 mg/l | 200 mg/l | 7 % | Single value |
| Sulphate | 40 mg/l | 250 mg/l | 16 % | Single value |
| Taste | ohne - | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | <1 mg/l below limit of quantification | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,22 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.
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: 34225
Show 9 more supply zones
Altenbauna, AquaPark
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Altenbauna, AquaPark |
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: 34225
Altenbauna, Kindergarten Pestalozzi
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Altenbauna, Kindergarten Pestalozzi |
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: 34225
Altenritte, Vereinshaus
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Altenritte, Vereinshaus |
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: 34225
Großenritte, Erich-Kästner-Schule
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 1 | — | — | Single value · Großenritte, Erich-Kästner-Schule |
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: 34225
Großenritte, Kindergarten Astrid-Lindgren-Haus
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Großenritte, Kindergarten Astrid-Lindgren-Haus |
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: 34225
Guntershausen, Marie-Behre-Heim
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Guntershausen, Marie-Behre-Heim |
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: 34225
Hertingshausen, RATIO-Markt
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Hertingshausen, RATIO-Markt |
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: 34225
Kirchbauna, Kindergarten Hermann-Schafft-Straße 23
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Kirchbauna, Kindergarten Hermann-Schafft-Straße 23 |
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: 34225
Rengershausen, Kindergarten Dorothea-Viehmann-Straße 31
Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
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 |
|---|---|---|---|---|
| Hardness range (WRMG) | 2 | — | — | Single value · Rengershausen, Kindergarten Dorothea-Viehmann-Straße 31 |
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: 34225
Frequently asked questions about drinking water in Baunatal
- Are PFAS detectable in the drinking water in Baunatal?
- Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal) states for the supply zone Baunatal - Altenbauna, Entnahmeort Bornhagen 2, Entnahmestelle Kindergarten Birkenallee that the sum PFAS-20 was not detectable (entry in the report: "n. n."). This is not to be read as "PFAS-free": below the limit of quantification, the measurement cannot make any statement. The statutory parametric value is 0.1 µg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: 22.05.2026, retrieved on 11/07/2026.
- Who supplies the drinking water in Baunatal?
- Stadtwerke Baunatal (Eigenbetrieb der Stadt Baunatal). The values shown here come from the supply zone Baunatal - Altenbauna, Entnahmeort Bornhagen 2, Entnahmestelle Kindergarten Birkenallee 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.