Drinking water in Lahr/Schwarzwald
One supply zone, water supplier: Badenova Netze.
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.
Lahr
Badenova NetzeAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
16.5 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0,0019 μg/L | 0.1 µg/l | 2 % | Single value |
| Nitrate | 13,6 μg/L | 50 mg/l | < 0.1 % | Single value |
| Lead | < BG μg/L not detectable | 10 µg/l | — | Single value |
| Escherichia coli (E. coli) | 0 Anzahl/100 ml | 0/100 ml | — | Single value |
| Sulphate | 38 mg/L | 250 mg/l | 15 % | Single value |
Show all recorded parameters (82 — 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 (56)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < BG μg/L not detectable | 3 µg/l | — | Single value |
| 2,4-D | < BG μg/L not detectable | — | — | Single value |
| Antimony | < BG μg/L not detectable | 5 µg/l | — | Single value |
| Arsenic | < BG μg/L not detectable | 10 µg/l | — | Single value |
| Atrazine | < BG μg/L not detectable | — | — | Single value |
| Bentazone | < BG μg/L not detectable | — | — | Single value |
| Benzene | < BG μg/L not detectable | 1 µg/l | — | Single value |
| Benzo(a)pyrene | < BG μg/L not detectable | 10 ng/l | — | Single value |
| Benzo(b)fluoranthene | < BG μg/L not detectable | — | — | Single value |
| Benzo(ghi)perylene | < BG μg/L not detectable | — | — | Single value |
| Benzo(k)fluoranthene | < BG μg/L not detectable | — | — | Single value |
| Bisphenol A | < BG μg/L not detectable | 2.5 µg/l | — | Single value |
| Boron | < BG μg/L not detectable | 1 mg/l | — | Single value |
| Bromacil | < BG μg/L not detectable | — | — | Single value |
| Bromate | < BG μg/L not detectable | 10 µg/l | — | Single value |
| Bromoxynil | < BG μg/L not detectable | — | — | Single value |
| Cadmium | < BG μg/L not detectable | 3 µg/l | — | Single value |
| Carbetamide | < BG μg/L not detectable | — | — | Single value |
| Chloridazon | < BG μg/L not detectable | — | — | Single value |
| Chlorotoluron | < BG μg/L not detectable | — | — | Single value |
| Chromium | < BG μg/L not detectable | 25 µg/l | — | Single value |
| Copper | < BG μg/L not detectable | 2 mg/l | — | Single value |
| Cyanazine | < BG μg/L not detectable | — | — | Single value |
| Cyanide | < BG μg/L not detectable | 50 µg/l | — | Single value |
| Desethylatrazine | < BG μg/L not detectable | — | — | Single value |
| Desethylterbuthylazine | < BG μg/L not detectable | — | — | Single value |
| Dicamba | < BG μg/L not detectable | — | — | Single value |
| Diuron | < BG μg/L not detectable | — | — | Single value |
| Fluoride | 0,07 μg/L | 1.5 mg/l | < 0.1 % | Single value |
| Hexazinone | < BG μg/L not detectable | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | < BG μg/L not detectable | — | — | Single value |
| Isoproturon | < BG μg/L not detectable | — | — | Single value |
| Lead | < BG μg/L not detectable | 10 µg/l | — | Single value |
| Lenacil | < BG μg/L not detectable | — | — | Single value |
| MCPA | < BG μg/L not detectable | — | — | Single value |
| Mercury | < BG μg/L not detectable | 1 µg/l | — | Single value |
| Metalaxyl | < BG μg/L not detectable | — | — | Single value |
| Metamitron | < BG μg/L not detectable | — | — | Single value |
| Metolachlor | < BG μg/L not detectable | — | — | Single value |
| Metoxuron | < BG μg/L not detectable | — | — | Single value |
| Metribuzin | < BG μg/L not detectable | — | — | Single value |
| Nickel | < BG μg/L not detectable | 20 µg/l | — | Single value |
| Nitrate | 13,6 μg/L | 50 mg/l | < 0.1 % | Single value |
| Nitrite | < BG μg/L not detectable | 0.5 mg/l | — | Single value |
| Pendimethalin | < BG μg/L not detectable | — | — | Single value |
| Pesticides — Total | < BG μg/L not detectable | 0.5 µg/l | — | Single value |
| Prometryn | < BG μg/L not detectable | — | — | Single value |
| Selenium | < BG μg/L not detectable | 10 µg/l | — | Single value |
| Terbuthylazine | < BG μg/L not detectable | — | — | Single value |
| Terbutryn | < BG μg/L not detectable | — | — | Single value |
| Tetrachloroethene | < BG μg/L not detectable | — | — | Single value |
| Tetrachloroethene and Trichloroethene (sum) | 0 μg/L | 10 µg/l | 0 % | Single value |
| Tri-allate | < BG μg/L not detectable | — | — | Single value |
| Triadimenol | < BG μg/L not detectable | — | — | Single value |
| Trichloroethene | < BG μg/L not detectable | — | — | Single value |
| Uranium | 0,0036 μg/L | 10 µg/l | < 0.1 % | Single value |
PFAS (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of 4 PFAS | 0 μg/L | — | — | Single value |
| Sum of PFAS | 0,0019 μg/L | 0.1 µg/l | 2 % | Single value |
Indicator parameters (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < BG mg/L not detectable | 0.2 mg/l | — | Single value |
| Calcite dissolution capacity | < BG - not detectable | 5 mg/l CaCO3 | — | Single value |
| Chloride | 21,7 mg/L | 250 mg/l | 9 % | Single value |
| Coliform bacteria | 0 Anzahl/100 ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 Anzahl/1 ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 Anzahl/1 ml | ohne anormale Veränderung | — | Single value |
| Colour | ohne - | 0.5 m⁻¹ | — | Single value |
| Iron | < BG mg/L not detectable | 0.2 mg/l | — | Single value |
| Manganese | < BG mg/L not detectable | 50 µg/l | — | Single value |
| Odour | ohne - | für den Verbraucher annehmbar | — | Single value |
| Sulphate | 38 mg/L | 250 mg/l | 15 % | Single value |
| Total organic carbon (TOC) | 0,77 1/m | ohne anormale Veränderung | — | Single value |
| Turbidity | - FNU not determined | 1 NTU | — | Single value |
Further parameters (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 4,8 mmol/L | — | — | Single value |
| Acid capacity to pH 8.2 | - mmol/L not determined | — | — | Single value |
| Base capacity to pH 8.2 | 0,68 mmol/L | — | — | Single value |
| Calcite precipitation capacity | < BG mg/L not detectable | — | — | Single value |
| Calcium | 94,5 mg/L | — | — | Single value |
| Magnesium | 14,3 mg/L | — | — | Single value |
| Phosphate | 0,02 mg/L | — | — | Single value |
| Saturation index | 0 - | — | — | Single value |
| Total hardness | 16,5 ° 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.
Source: https://a.storyblok.com/f/307935/x/2f6dc1f636/trinkwasseranalyse_lahr-2026.pdf · 10.03.2026 · retrieved on 11/07/2026
Postcodes in this zone: 77933
Frequently asked questions about drinking water in Lahr/Schwarzwald
- How hard is the water in Lahr/Schwarzwald?
- Badenova Netze publishes a total hardness of 16.5 °dH for the supply zone Lahr (hardness range hard). 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: 10.03.2026, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Lahr/Schwarzwald?
- Badenova Netze publishes a nitrate value of 13,6 μg/L (0.014 mg/l) for the supply zone Lahr. The statutory parametric value is 50 mg/l; the measured value represents < 0.1 % of the parametric value. Basis: 10.03.2026, retrieved on 11/07/2026.
- Are PFAS detectable in the drinking water in Lahr/Schwarzwald?
- Badenova Netze publishes for the supply zone Lahr a sum value PFAS-20 of 0,0019 μg/L. The statutory parametric value is 0.1 µg/l; the measured value represents 2 % of the parametric value. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: 10.03.2026, retrieved on 11/07/2026.
- Who supplies the drinking water in Lahr/Schwarzwald?
- Badenova Netze. The values shown here come from the supply zone Lahr 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.