Drinking water in 25746
For this postcode Stadtwerke Heide GmbH publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 2 underneath.
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.
Wasserwerk Süderholm
Stadtwerke Heide GmbHAssigned 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 | < 0,5 mg/l below limit of quantification | 50 mg/l | < 1 % * | Single value |
| Lead | 0,0015 mg/l | 10 µg/l | 15 % | Single value |
| Sulphate | 41 mg/l | 250 mg/l | 16 % | Single value |
| Sodium | 18 mg/l | 200 mg/l | 9 % | 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 (94 — most recent value per parameter)
Chemical parameters (51)
| 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 % * | Single value |
| 2,6-Dichlorobenzamide (BAM) | < 0,025 µg/l below limit of quantification | — | — | 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 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Bentazone | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Benzene | < 0,3 µg/l below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Benzo(a)pyrene | < 0,02 µg/l below limit of quantification | 10 ng/l | cannot be assessed — the limit of quantification of the measurement is above the parametric value | Single value |
| Benzo(b)fluoranthene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Boron | 0,017 mg/l | 1 mg/l | 2 % | Single value |
| Bromacil | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Bromodichloromethane | < 0,0003 mg/l below limit of quantification | — | — | Single value |
| Cadmium | < 0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| Chloridazon | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Chlorotoluron | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Chromium | < 0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Clothianidin | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Copper | 0,0062 mg/l | 2 mg/l | 0.3 % | Single value |
| Cyanide | 0,009 mg/l | 50 µg/l | 18 % | Single value |
| Desethylatrazine | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Dibromochloromethane | < 0,0001 mg/l below limit of quantification | — | — | Single value |
| Dimethenamid | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Diuron | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Flufenacet | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Fluoranthene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Fluoride | 0,14 mg/l | 1.5 mg/l | 9 % | Single value |
| Glyphosate | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Imidacloprid | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Isoproturon | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Lead | 0,0015 mg/l | 10 µg/l | 15 % | Single value |
| Mecoprop-P | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Mercury | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Metalaxyl | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Metolachlor | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Nickel | 0,0028 mg/l | 20 µg/l | 14 % | Single value |
| Nicosulfuron | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Nitrate | < 0,5 mg/l below limit of quantification | 50 mg/l | < 1 % * | Single value |
| Nitrite | < 0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value |
| Oxadixyl | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Selenium | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Single value |
| Simazine | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Tebuconazole | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | < 0,1 µg/l below limit of quantification | — | — | Single value |
| Tribromomethane (bromoform) | < 0,0001 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | < 0,1 µg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | < 0,0001 mg/l below limit of quantification | — | — | 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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Trifluoroacetic acid (TFA) | < 0,5 µg/l below limit of quantification | 60 µg/l UBA guide value | < 0.8 % * | 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.
For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.
Metabolites (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1H-1,2,4-Triazole | < 0,03 µg/l below limit of quantification | — | — | Single value |
| Desphenyl-chloridazon | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Dimethachlor acid CGA 50266 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Dimethachlor sulfonic acid CGA 354742 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Dimethenamid sulfonic acid M27 | < 0,1 µg/l below limit of quantification | — | — | Single value |
| Dimethylsulfamide (DMS) | < 0,05 µg/l below limit of quantification | — | — | Single value |
| Metazachlor metabolite BH 479-11 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Metazachlor metabolite BH 479-9 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Metazachlor sulfonic acid BH 479-8 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Methyl-desphenyl-chloridazon | < 0,025 µg/l below limit of quantification | — | — | Single value |
| S-metolachlor acid CGA 51202/351916 | < 0,025 µg/l below limit of quantification | — | — | Single value |
| S-metolachlor sulfonic acid CGA 380168/354743 | < 0,025 µg/l below limit of quantification | — | — | Single value |
Indicator parameters (14)
| 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 | < 0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Single value |
| Calcite dissolution capacity | -10,22 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 35 mg/l | 250 mg/l | 14 % | Single value |
| Colour | 0,1 m^-1 | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 523 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 | 7,79 | 6,5–9,5 | — | Single value |
| Sodium | 18 mg/l | 200 mg/l | 9 % | Single value |
| Sulphate | 41 mg/l | 250 mg/l | 16 % | Single value |
| Temperature | 9,7 °C | — | — | Single value |
| Total organic carbon (TOC) | 1,4 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,08 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 (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,3 mmol/l | — | — | Single value |
| Anthracene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Base capacity to pH 8.2 | < 0,1 mmol/l below limit of quantification | — | — | Single value |
| Calcium | 79 mg/l | — | — | Single value |
| Carbonate hardness | 9,3 °dH | — | — | Single value |
| Chrysene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Fluorene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Magnesium | 4,5 mg/l | — | — | Single value |
| Naphthalene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Oxygen | 12,4 mgO2/l | — | — | Single value |
| Phenanthrene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Potassium | 1,4 mg/l | — | — | Single value |
| Pyrene | < 0,02 µg/l below limit of quantification | — | — | Single value |
| Sum of anion equivalents | 5,16 mmol/l | — | — | Single value |
| Sum of cation equivalents | 5,14 mmol/l | — | — | Single value |
| Total hardness | 12 °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.
Show 2 more supply zones in this postcode
WW Süderholm Probenahme Filterhalle
Stadtwerke Heide GmbHAssigned 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 | < 0,005 µg/l below limit of quantification | 0.1 µg/l | < 5 % * | 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 (21 — most recent value per parameter)
PFAS (21)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Perfluorobutane sulfonic acid (PFBS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorobutanoic acid (PFBA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorodecane sulfonic acid (PFDS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorodecanoic acid (PFDA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorododecane sulfonic acid (PFDoDS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorododecanoic acid (PFDoDA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluoroheptanoic acid (PFHpA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorohexane sulfonic acid (PFHxS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorohexanoic acid (PFHxA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorononane sulfonic acid (PFNS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorononanoic acid (PFNA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorooctanesulfonic acid (PFOS) | < 0,005 µg/l below limit of quantification | — | — | Single value |
| Perfluorooctanoic acid (PFOA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluoropentanesulfonic acid (PFPeS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluoropentanoic acid (PFPeA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorotridecanesulfonic acid (PFTrDS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluorotridecanoic acid (PFTrDA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluoroundecanesulfonic acid (PFUnDS) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Perfluoroundecanoic acid (PFUnDA) | < 0,0015 µg/l below limit of quantification | — | — | Single value |
| Sum of 4 PFAS | 0 µg/l | — | — | Single value |
| Sum of PFAS | < 0,005 µg/l below limit of quantification | 0.1 µg/l | < 5 % * | 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.
Wasserwerk Reinwasser-Ausgang, Probehahn Filterhalle
Stadtwerke Heide GmbHAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 27/11/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.
No core values are available for this zone yet.
Show all recorded parameters (17 — most recent value per parameter)
Indicator parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Colour | farblos Unit not stated in the document | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 502 µS/cm | 2,790 µS/cm | — | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,53 | 6,5–9,5 | — | Single value |
| Temperature | 9,5 °C | — | — | Single value |
| Turbidity | keine Unit not stated in the document | 1 NTU | — | Single value |
Further parameters (11)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Amidotrizoic acid | < 0,050 µg/l below limit of quantification | — | — | Single value |
| Carbamazepine | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Clofibric acid | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Diclofenac | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Gabapentin | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Iopamidol | < 0,05 µg/l below limit of quantification | — | — | Single value |
| Oxygen | 11,3 mgO2/l | — | — | Single value |
| Primidone | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Propyphenazone | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Sulfamethoxazole | < 0,025 µg/l below limit of quantification | — | — | Single value |
| Valsartanic acid | < 0,025 µg/l below limit of quantification | — | — | 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 25746
- How hard is the water in Postcode 25746?
- Stadtwerke Heide GmbH publishes a total hardness of 12 °dH for the supply zone Wasserwerk Süderholm (hardness range medium). 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: 22.04.2026, retrieved on 08/07/2026.
- How much nitrate is in the drinking water in Postcode 25746?
- Stadtwerke Heide GmbH publishes a nitrate value of < 0,5 mg/l for the supply zone Wasserwerk Süderholm. The statutory parametric value is 50 mg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. Basis: 22.04.2026, retrieved on 08/07/2026.
- Who supplies the drinking water in Postcode 25746?
- Stadtwerke Heide GmbH. The values shown here come from the supply zone Wasserwerk Süderholm 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.