Drinking water in 37431
One supply zone, water supplier: Harz Energie Netz 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.
Bad Lauterberg, Kurhaus, Keller, Wasserverteilung Waschbecken
Harz Energie Netz 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 23/06/2025. 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 23,3 mg/L | 50 mg/l | 47 % | Single value |
| Escherichia coli (E. coli) | 0 MPN/100 mL | 0/100 ml | — | Single value |
| Sulphate | 87,1 mg/L | 250 mg/l | 35 % | Single value |
Show all recorded parameters (76 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100 mL | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 KBE/100 mL | 0/100 ml | — | Single value |
Chemical parameters (43)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 2,6-Dichlorobenzamide (BAM) | <0,000050 mg/L below limit of quantification | — | — | Single value |
| Acrylamide | <0,0001 mg/L below limit of quantification | 0.1 µg/l | < 100 % * | Single value |
| AMPA | <0,000070 mg/L below limit of quantification | — | — | Single value |
| Atrazine | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Bentazone | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Benzene | <0,0003 mg/L below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Bisphenol A | <0,00010 mg/L below limit of quantification | 2.5 µg/l | < 4 % * | Single value |
| Bromacil | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Bromate | <0,003 mg/L below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Chlorate | <0,020 mg/L below limit of quantification | 70 µg/l | < 29 % * | Single value |
| Chloridazon | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Chlorite | <0,06 mg/L below limit of quantification | 0.2 mg/l | < 30 % * | Single value |
| Chlorotoluron | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Chromium | <0,0005 mg/L below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Copper | 0,020 mg/L | 2 mg/l | 1 % | Single value |
| Cyanide | <0,005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Dichlorprop | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Diuron | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Epichlorohydrin | <0,0001 mg/L below limit of quantification | 0.1 µg/l | < 100 % * | Single value |
| Ethidimuron | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Ethofumesate | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Fluoride | 0,31 mg/L | 1.5 mg/l | 21 % | Single value |
| Glyphosate | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Isoproturon | <0,000030 mg/L below limit of quantification | — | — | Single value |
| MCPA | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Mecoprop | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Mercury | <0,00010 mg/L below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Metalaxyl | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Metamitron | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Metazachlor | 0,000092 mg/L | — | — | Single value |
| Metolachlor | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Metoxuron | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Metribuzin | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Nitrate | 23,3 mg/L | 50 mg/l | 47 % | Single value |
| Nitrite | <0,01 mg/L below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Oxadixyl | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Simazine | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Tebuconazole | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,000030 mg/L below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,0010 mg/L below limit of quantification | — | — | Single value |
| Trichloroethene | <0,0009 mg/L below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | 0,0018 mg/L | 50 µg/l | 4 % | Single value |
| Vinyl chloride | <0,0003 mg/L below limit of quantification | 0.5 µg/l | < 60 % * | 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) | <0,00050 mg/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 (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Desphenyl-chloridazon | 0,000090 mg/L | — | — | Single value |
| Dimethachlor acid CGA 50266 | <0,000050 mg/L below limit of quantification | — | — | Single value |
| Dimethachlor sulfonic acid CGA 354742 | <0,000050 mg/L below limit of quantification | — | — | Single value |
| Dimethenamid sulfonic acid M27 | <0,000050 mg/L below limit of quantification | — | — | Single value |
| Flufenacet sulfonic acid M2 | <0,000050 mg/L below limit of quantification | — | — | Single value |
| Methyl-desphenyl-chloridazon | <0,000050 mg/L below limit of quantification | — | — | Single value |
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0,023 mg/L | 0.2 mg/l | 12 % | Single value |
| Ammonium | <0,04 mg/L below limit of quantification | 0.5 mg/l | < 8 % * | Single value |
| Chloride | 18,0 mg/L | 250 mg/l | 7 % | Single value |
| Clostridium perfringens (including spores) | 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 | farblos Unit not stated in the document | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 667 µS/cm | 2,790 µS/cm | — | Single value |
| Manganese | <0,001 mg/L below limit of quantification | 50 µg/l | < 2 % * | Single value |
| Odour | normal | für den Verbraucher annehmbar | — | Single value |
| pH | 7,61 | 6,5–9,5 | — | Single value |
| Sulphate | 87,1 mg/L | 250 mg/l | 35 % | Single value |
| Taste | normal | für den Verbraucher annehmbar | — | Single value |
| Temperature | 12,4 °C | — | — | Single value |
| Total organic carbon (TOC) | 0,54 mg/L | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,15 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 (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 88,7 mg/L | — | — | Single value |
| Carbonate hardness | 12,3 °dH | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Oxygen | 9,9 mg/L | — | — | Single value |
| Phosphate | 0,03 mg/L | — | — | Single value |
| Potassium | 1,3 mg/L | — | — | Single value |
| Silicate / silicic acid | 8,2 mg/L | — | — | Single value |
| Total hardness | 3,5 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.
Frequent questions about postcode 37431
- How hard is the water in Postcode 37431?
- Harz Energie Netz GmbH publishes a total hardness of 3,5 mmol/L for the supply zone Bad Lauterberg, Kurhaus, Keller, Wasserverteilung Waschbecken — that corresponds to 19.6 °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: 17.07.2025, retrieved on 27/07/2026.
- How much nitrate is in the drinking water in Postcode 37431?
- Harz Energie Netz GmbH publishes a nitrate value of 23,3 mg/L for the supply zone Bad Lauterberg, Kurhaus, Keller, Wasserverteilung Waschbecken. The statutory parametric value is 50 mg/l; the measured value represents 47 % of the parametric value. Basis: 17.07.2025, retrieved on 27/07/2026.
- Who supplies the drinking water in Postcode 37431?
- Harz Energie Netz GmbH. The values shown here come from the supply zone Bad Lauterberg, Kurhaus, Keller, Wasserverteilung Waschbecken 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.