Drinking water in Buchholz in der Nordheide
One supply zone, water supplier: Buchholzer Stadtwerke GmbH.
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 Buchholz
Buchholzer Stadtwerke 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 | <0,00003 ng/l below limit of quantification | 0.1 µg/l | < < 0.1 % * | Single value |
| Nitrate | 6,5 mg/l | 50 mg/l | 13 % | Single value |
| Lead | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Sulphate | 36 mg/l | 250 mg/l | 14 % | 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 (46 — most recent value per parameter)
Chemical parameters (24)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,1 μg/l below limit of quantification | 3 µg/l | < 3 % * | Single value |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Single value |
| Arsenic | <0,0007 mg/l below limit of quantification | 10 µg/l | < 7 % * | Single value |
| Benzene | <0,1 μg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Benzo(a)pyrene | <0,001 μg/l below limit of quantification | 10 ng/l | < 10 % * | Single value |
| Benzo(ghi)perylene | <0,005 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 | 0,036 mg/l | 1 mg/l | 4 % | Single value |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | 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 | <0,001 mg/l below limit of quantification | 2 mg/l | < < 0.1 % * | Single value |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Fluoride | <0,15 mg/l below limit of quantification | 1.5 mg/l | < 10 % * | 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 | 6,5 mg/l | 50 mg/l | 13 % | Single value |
| Nitrite | <0,2 mg/l below limit of quantification | 0.5 mg/l | < 40 % * | Single value |
| Polycyclic aromatic hydrocarbons | nicht nachweisbar μg/l not detectable | 0.1 µg/l | — | Single value |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Tetrachloroethene | <0,1 μg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,1 μg/l below limit of quantification | — | — | Single value |
| Uranium | <0,00005 mg/l below limit of quantification | 10 µg/l | < 0.5 % * | 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.
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | <0,000005 ng/l below limit of quantification | — | — | Single value |
| Sum of PFAS | <0,00003 ng/l below limit of quantification | 0.1 µg/l | < < 0.1 % * | 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 (15)
| 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 | <0,025 mg/l below limit of quantification | 0.5 mg/l | < 5 % * | Single value |
| Calcite dissolution capacity | 0,399 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 29 mg/l | 250 mg/l | 12 % | Single value |
| Colour | <0,1 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 255 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | 0,009 mg/l | 0.2 mg/l | 5 % | Single value |
| Manganese | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 8 | 6,5–9,5 | — | Single value |
| Sodium | 16 mg/l | 200 mg/l | 8 % | Single value |
| Sulphate | 36 mg/l | 250 mg/l | 14 % | Single value |
| Taste | unauffällig | für den Verbraucher annehmbar | — | Single value |
| Temperature | 9,40 °C | — | — | Single value |
| Turbidity | 0,13 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 | 39 mg/l | — | — | Single value |
| Hardness range (WRMG) | weich | — | — | Single value |
| Magnesium | 2,8 mg/l | — | — | Single value |
| Potassium | 1,5 mg/l | — | — | Single value |
| Total hardness | 1,1 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: 21244
Frequently asked questions about drinking water in Buchholz in der Nordheide
- How hard is the water in Buchholz in der Nordheide?
- Buchholzer Stadtwerke GmbH publishes a total hardness of 1,1 mmol/L for the supply zone Wasserwerk Buchholz — that corresponds to 6.2 °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 11/07/2026.
- How much nitrate is in the drinking water in Buchholz in der Nordheide?
- Buchholzer Stadtwerke GmbH publishes a nitrate value of 6,5 mg/l for the supply zone Wasserwerk Buchholz. The statutory parametric value is 50 mg/l; the measured value represents 13 % of the parametric value. Basis: Publication by the water supplier, retrieved on 11/07/2026.
- Are PFAS detectable in the drinking water in Buchholz in der Nordheide?
- Buchholzer Stadtwerke GmbH publishes for the supply zone Wasserwerk Buchholz a sum value PFAS-20 below the limit of quantification (entry in the report: "<0,00003 ng/l"). 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: Publication by the water supplier, retrieved on 11/07/2026.
- Who supplies the drinking water in Buchholz in der Nordheide?
- Buchholzer Stadtwerke GmbH. The values shown here come from the supply zone Wasserwerk Buchholz 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.