Drinking water in 76297
One supply zone, water supplier: Zweckverband Wasserversorgung Mittelhardt.
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.
Rathaus Blankenloch
Zweckverband Wasserversorgung MittelhardtAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
21.4 °dH
Hardness range hard
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 6,8 mg/l | 50 mg/l | 14 % | Single value |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Escherichia coli (E. coli) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Sulphate | 64,0 mg/l | 250 mg/l | 26 % | Single value |
| Sodium | 16,7 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 (74 — 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 (46)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,0003 mg/l below limit of quantification | 3 µg/l | < 10 % * | Single value |
| 2,6-Dichlorobenzamide (BAM) | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Acrylamide | <0,01 µg/l below limit of quantification | 0.1 µg/l | < 10 % * | Single value |
| Antimony | < 0,0002 mg/l below limit of quantification | 5 µg/l | < 4 % * | Single value |
| Arsenic | 0,00040 mg/l | 10 µg/l | 4 % | Single value |
| Atrazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Benzene | < 0,00025 mg/l below limit of quantification | 1 µg/l | < 25 % * | Single value |
| Benzo(a)pyrene | < 0,000002 mg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Benzo(b)fluoranthene | < 0,000010 mg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | < 0,000010 mg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | < 0,000010 mg/l below limit of quantification | — | — | Single value |
| Bisphenol A | <0,005 µg/l below limit of quantification | 2.5 µg/l | < 0.2 % * | Single value |
| Boron | 0,0503 mg/l | 1 mg/l | 5 % | Single value |
| Bromacil | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Bromate | < 0,002 mg/l below limit of quantification | 10 µg/l | < 20 % * | Single value |
| Bromodichloromethane | < 0,0005 mg/l below limit of quantification | — | — | Single value |
| Cadmium | < 0,0001 mg/l below limit of quantification | 3 µg/l | < 3 % * | Single value |
| Copper | 0,00550 mg/l | 2 mg/l | 0.3 % | Single value |
| Cyanide | 0,0076 mg/l | 50 µg/l | 15 % | Single value |
| Desethylatrazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Desethylterbuthylazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Desisopropylatrazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Dibromochloromethane | < 0,0005 mg/l below limit of quantification | — | — | Single value |
| Epichlorohydrin | <0,1 µg/l below limit of quantification | 0.1 µg/l | < 100 % * | Single value |
| Fluoride | < 0,05 mg/l below limit of quantification | 1.5 mg/l | < 3 % * | Single value |
| Hexazinone | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | < 0,000010 mg/l below limit of quantification | — | — | Single value |
| Lead | < 0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Mercury | < 0,00001 mg/l below limit of quantification | 1 µg/l | < 1 % * | Single value |
| Metalaxyl | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Metazachlor | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Metolachlor | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Nickel | < 0,0005 mg/l below limit of quantification | 20 µg/l | < 3 % * | Single value |
| Nitrate | 6,8 mg/l | 50 mg/l | 14 % | Single value |
| Nitrite | 0,01 mg/l | 0.5 mg/l | 2 % | Single value |
| Pesticides — Total | <0,000020 mg/l below limit of quantification | 0.5 µg/l | < 4 % * | Single value |
| Propazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Selenium | < 0,0002 mg/l below limit of quantification | 10 µg/l | < 2 % * | Single value |
| Simazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,000020 mg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | < 0,0005 mg/l below limit of quantification | — | — | Single value |
| Tribromomethane (bromoform) | < 0,0005 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | < 0,0005 mg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | < 0,0005 mg/l below limit of quantification | — | — | Single value |
| Uranium | 0,00080 mg/l | 10 µg/l | 8 % | Single value |
| Vinyl chloride | <0,05 µg/l below limit of quantification | 0.5 µg/l | < 10 % * | 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 | < 0,001 mg/l below limit of quantification | 0.2 mg/l | < 0.5 % * | Single value |
| Ammonium | < 0,03 mg/l below limit of quantification | 0.5 mg/l | < 6 % * | Single value |
| Chloride | 35,0 mg/l | 250 mg/l | 14 % | 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 | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colour | < 0,1 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 783,0 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | < 0,003 mg/l below limit of quantification | 0.2 mg/l | < 2 % * | Single value |
| Manganese | 0,0004 mg/l | 50 µg/l | 0.8 % | Single value |
| Odour | ohne Besonderheit - | für den Verbraucher annehmbar | — | Single value |
| pH | 7,1 - | 6,5–9,5 | — | Single value |
| Sodium | 16,7 mg/l | 200 mg/l | 8 % | Single value |
| Sulphate | 64,0 mg/l | 250 mg/l | 26 % | Single value |
| Taste | ohne Besonderheit - | für den Verbraucher annehmbar | — | Single value |
| Total organic carbon (TOC) | 0,86 mg/l | ohne anormale Veränderung | — | Single value |
| Turbidity | 0,03 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 (9)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 5,89 mmol/l | — | — | Single value |
| Calcium | 126,0 mg/l | — | — | Single value |
| Carbonate hardness | 16,5 °dH | — | — | Single value |
| Free carbon dioxide | 25,485 mg/l | — | — | Single value |
| Hydrogen carbonate | 359,4 mg/l | — | — | Single value |
| Magnesium | 16,4 mg/l | — | — | Single value |
| Oxygen | 3,5 mg/l | — | — | Single value |
| Potassium | 3,9 mg/l | — | — | Single value |
| Total hardness | 21,4 °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://www.stutensee.de/ceasy/resource/?id=1798&download=1 · 02.06.2026 · 12.05.2026 · retrieved on 11/07/2026
Frequent questions about postcode 76297
- How hard is the water in Postcode 76297?
- Zweckverband Wasserversorgung Mittelhardt publishes a total hardness of 21.4 °dH for the supply zone Rathaus Blankenloch (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: 02.06.2026, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Postcode 76297?
- Zweckverband Wasserversorgung Mittelhardt publishes a nitrate value of 6,8 mg/l for the supply zone Rathaus Blankenloch. The statutory parametric value is 50 mg/l; the measured value represents 14 % of the parametric value. Basis: 02.06.2026, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 76297?
- Zweckverband Wasserversorgung Mittelhardt. The values shown here come from the supply zone Rathaus Blankenloch 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.