Drinking water in Nauen
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
12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.
< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.
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 Nauen, Werksausgang
Wasser- und Abwasserverband "Havelland" (WAH)Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
27.5 °dH
Hardness range hart
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 1,6 mg/l | 50 mg/l | 3 % | Single value |
| Lead | <0,00030 (NWG) mg/l not detectable | 10 µg/l | — | Single value |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Sulphate | 189 mg/l | 250 mg/l | 76 % | Single value |
| Sodium | 32,7 mg/l | 200 mg/l | 16 % | Single value |
Show all recorded parameters (102 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Single value |
Chemical parameters (71)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,1,1-Trichloroethane | <0,0002 mg/l below limit of quantification | — | — | Single value |
| 1,2-dichloroethane | <0,0005 mg/l below limit of quantification | 3 µg/l | < 17 % * | Single value |
| Aldrin | <0,00001 mg/l below limit of quantification | 30 ng/l | < 33 % * | Single value |
| AMPA | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Antimony | <0,00030 (NWG) mg/l not detectable | 5 µg/l | — | Single value |
| Arsenic | <0,00030 (NWG) mg/l not detectable | 10 µg/l | — | Single value |
| Atrazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Azoxystrobin | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Bentazone | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Benzene | <0,0003 mg/l below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Benzo(a)pyrene | <0,0000008 (NWG) mg/l not detectable | 10 ng/l | — | Single value |
| Benzo(b)fluoranthene | <0,000005 (NWG) mg/l not detectable | — | — | Single value |
| Benzo(ghi)perylene | <0,000005 (NWG) mg/l not detectable | — | — | Single value |
| Benzo(k)fluoranthene | <0,000005 (NWG) mg/l not detectable | — | — | Single value |
| Bisphenol A | <0,000050 (NWG) mg/l not detectable | 2.5 µg/l | — | Single value |
| Boron | <0,05 (+) mg/l below limit of quantification | 1 mg/l | < 5 % * | Single value |
| Bromacil | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Bromate | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Bromodichloromethane | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Cadmium | <0,00010 (NWG) mg/l not detectable | 3 µg/l | — | Single value |
| Chloridazon | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Chlorotoluron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Chromium | <0,00010 (NWG) mg/l not detectable | 25 µg/l | — | Single value |
| cis-1,2-Dichloroethene | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Copper | <0,005 (+) mg/l below limit of quantification | 2 mg/l | < 0.3 % * | Single value |
| Cyanazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Cyanide | <0,0020 (NWG) mg/l not detectable | 50 µg/l | — | Single value |
| Desethylatrazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Desethylterbuthylazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Dibromochloromethane | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Dichloromethane | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Dichlorprop | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Dieldrin | <0,00001 mg/l below limit of quantification | 30 ng/l | < 33 % * | Single value |
| Diuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Fenuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Fluoranthene | <0,000005 (NWG) mg/l not detectable | — | — | Single value |
| Fluoride | 0,27 mg/l | 1.5 mg/l | 18 % | Single value |
| Glyphosate | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Heptachlor | <0,00001 mg/l below limit of quantification | 30 ng/l | < 33 % * | Single value |
| Hexazinone | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Isoproturon | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Lead | <0,00030 (NWG) mg/l not detectable | 10 µg/l | — | Single value |
| MCPA | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Mecoprop | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Mercury | <0,000030 (NWG) mg/l not detectable | 1 µg/l | — | Single value |
| Metazachlor | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Methabenzthiazuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metobromuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metolachlor | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Metoxuron | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Nickel | <0,00050 (NWG) mg/l not detectable | 20 µg/l | — | Single value |
| Nitrate | 1,6 mg/l | 50 mg/l | 3 % | Single value |
| Nitrite | <0,03 (NWG) mg/l not detectable | 0.5 mg/l | — | Single value |
| Polycyclic aromatic hydrocarbons | n.n. mg/l not detectable | 0.1 µg/l | — | Single value |
| Propazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Sebuthylazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Selenium | <0,00030 (NWG) mg/l not detectable | 10 µg/l | — | Single value |
| Simazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Terbutryn | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,0002 mg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene and Trichloroethene (sum) | n.b. mg/l not determined | 10 µg/l | — | Single value |
| Tetrachloromethane | <0,0002 mg/l below limit of quantification | — | — | Single value |
| Thiacloprid | <0,00003 mg/l below limit of quantification | — | — | Single value |
| Tribromomethane (bromoform) | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,0002 mg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | <0,0002 mg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | n.b. mg/l not determined | 50 µg/l | — | Single value |
| Uranium | <0,000030 (NWG) mg/l not detectable | 10 µg/l | — | Single value |
| Vinyl chloride | <0,0001 mg/l below limit of quantification | 0.5 µg/l | < 20 % * | 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 (17)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,0070 (NWG) mg/l not detectable | 0.2 mg/l | — | Single value |
| Ammonium | <0,05 (+) mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Single value |
| Calcite dissolution capacity | -25 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 69,4 mg/l | 250 mg/l | 28 % | Single value |
| Coliform bacteria | 0 KBE/100ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 1 KBE/ml | ohne anormale Veränderung | — | Single value |
| Conductivity (25 °C) | 1050 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | 0,011 mg/l | 0.2 mg/l | 5 % | Single value |
| Manganese | 0,019 mg/l | 50 µg/l | 38 % | Single value |
| Oxidisability | 4,1 mg/l | 5 mg/l O2 | — | Single value |
| pH | 7,3 | 6,5–9,5 | — | Single value |
| Sodium | 32,7 mg/l | 200 mg/l | 16 % | Single value |
| Sulphate | 189 mg/l | 250 mg/l | 76 % | Single value |
| Temperature | 23,7 °C | — | — | Single value |
| Total organic carbon (TOC) | 1,3 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,32 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 (12)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 5,64 mmol/l | — | — | Single value |
| AOX (adsorbable organically bound halogens) | <0,010 mg/l below limit of quantification | — | — | Single value |
| Base capacity to pH 8.2 | 0,75 mmol/l | — | — | Single value |
| Calcium | 153 mg/l | — | — | Single value |
| Carbonate hardness | 15,7 °dH | — | — | Single value |
| Dissolved organic carbon (DOC) | 1,2 mg/l | — | — | Single value |
| Free carbon dioxide | 28 mg/l | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Hydrogen carbonate | 340 mg/l | — | — | Single value |
| Magnesium | 26,2 mg/l | — | — | Single value |
| Potassium | 4,52 mg/l | — | — | Single value |
| Total hardness | 4,9 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.
Source: https://wah-nauen.de/images/pruefberichte/pruefbericht_ww_nauen_2025.pdf · 02.10.2025 · Probenahme 25.09.2025 08:47 - 25.09.2025 08:57 (KW 39) · retrieved on 11/07/2026
Postcodes in this zone: 14641
Show 1 more supply zone
Assigned 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.
No core values are available for this zone yet.
Show all recorded parameters (1 — most recent value per parameter)
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| pH | 7,26 | 6,5–9,5 | — | Single value · Nauen |
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.
Source: https://wah-nauen.de/unser-wasser/wasserwerte · retrieved on 13/07/2026
Postcodes in this zone: 14641
Frequently asked questions about drinking water in Nauen
- How hard is the water in Nauen?
- Wasser- und Abwasserverband "Havelland" (WAH) publishes a total hardness of 4,9 mmol/l for the supply zone Wasserwerk Nauen, Werksausgang — that corresponds to 27.5 °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: 02.10.2025, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Nauen?
- Wasser- und Abwasserverband "Havelland" (WAH) publishes a nitrate value of 1,6 mg/l for the supply zone Wasserwerk Nauen, Werksausgang. The statutory parametric value is 50 mg/l; the measured value represents 3 % of the parametric value. Basis: 02.10.2025, retrieved on 11/07/2026.
- Who supplies the drinking water in Nauen?
- Wasser- und Abwasserverband "Havelland" (WAH). The values shown here come from the supply zone Wasserwerk Nauen, Werksausgang 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.