Drinking water in 31157
One supply zone, water supplier: Wasserversorgung Sarstedt.
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.
sarstedt gesamt
Wasserversorgung SarstedtAssigned 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 10/04/2018. 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 | 5,5 mg/L | 50 mg/l | 11 % | Single value |
| Lead | <0,0011 mg/L below limit of quantification | 10 µg/l | < 11 % * | Single value |
| Escherichia coli (E. coli) | 0 in 100 mL | 0/100 ml | — | Single value |
| Sulphate | 26,6 mg/L | 250 mg/l | 11 % | Single value |
| Sodium | 7,7 mg/L | 200 mg/l | 4 % | 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 (60 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 in 100 mL | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 in 100 mL | 0/100 ml | — | Single value |
Chemical parameters (26)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0009 mg/L below limit of quantification | 3 µg/l | < 30 % * | Single value |
| Acrylamide | <0,000025 mg/L below limit of quantification | 0.1 µg/l | < 25 % * | Single value |
| Antimony | <0,0015 mg/L below limit of quantification | 5 µg/l | < 30 % * | Single value |
| Arsenic | <0,0005 mg/L below limit of quantification | 10 µg/l | < 5 % * | Single value |
| Benzene | <0,0003 mg/L below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Benzo(a)pyrene | <0,000002 mg/L below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Boron | <0,03 mg/L below limit of quantification | 1 mg/l | < 3 % * | Single value |
| Bromate | <0,003 mg/L below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Cadmium | <0,0004 mg/L below limit of quantification | 3 µg/l | < 13 % * | Single value |
| Chromium | <0,0005 mg/L below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Copper | <0,010 mg/L below limit of quantification | 2 mg/l | < 0.5 % * | Single value |
| Cyanide | <0,004 mg/L below limit of quantification | 50 µg/l | < 8 % * | Single value |
| Epichlorohydrin | <0,00005 mg/L below limit of quantification | 0.1 µg/l | < 50 % * | Single value |
| Fluoride | 0,05 mg/L | 1.5 mg/l | 3 % | Single value |
| Lead | <0,0011 mg/L below limit of quantification | 10 µg/l | < 11 % * | Single value |
| Mercury | <0,00010 mg/L below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Nickel | <0,0010 mg/L below limit of quantification | 20 µg/l | < 5 % * | Single value |
| Nitrate | 5,5 mg/L | 50 mg/l | 11 % | Single value |
| Nitrite | <0,01 mg/L below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Pesticides — Total | n.n. mg/L not detectable | 0.5 µg/l | — | Single value |
| Polycyclic aromatic hydrocarbons | <0,000010 mg/L below limit of quantification | 0.1 µg/l | < 10 % * | Single value |
| Selenium | <0,0010 mg/L below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Tetrachloroethene and Trichloroethene (sum) | <0,0005 mg/L below limit of quantification | 10 µg/l | < 5 % * | Single value |
| Trihalomethanes — Total | 0,0079 mg/L | 50 µg/l | 16 % | Single value |
| Uranium | <0,0001 mg/L below limit of quantification | 10 µg/l | < 1 % * | Single value |
| Vinyl chloride | mg/L not determined | 0.5 µg/l | — | 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 (21)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0,019 mg/L | 0.2 mg/l | 10 % | Single value |
| Ammonium | <0,04 mg/L below limit of quantification | 0.5 mg/l | < 8 % * | Single value |
| Calcite dissolution capacity | 0,1 mg/L | 5 mg/l CaCO3 | — | Single value |
| Chloride | 10,4 mg/L | 250 mg/l | 4 % | Single value |
| Clostridium perfringens (including spores) | 0 in 100 mL | 0/100 ml | — | Single value |
| Coliform bacteria | 0 in 100 mL | 0/100 ml | — | Single value |
| Colony count 22 °C | in 1 mL not determined | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | in 1 mL not determined | ohne anormale Veränderung | — | Single value |
| Colour | <0,1 1/m below limit of quantification | 0.5 m⁻¹ | — | Single value |
| Conductivity (25 °C) | 167 µS/cm | 2,790 µS/cm | — | Single value |
| Iron | <0,010 mg/L below limit of quantification | 0.2 mg/l | < 5 % * | 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 |
| Oxidisability | mg/L O2 not determined | 5 mg/l O2 | — | Single value |
| pH | 8,87 - | 6,5–9,5 | — | Single value |
| Sodium | 7,7 mg/L | 200 mg/l | 4 % | Single value |
| Sulphate | 26,6 mg/L | 250 mg/l | 11 % | Single value |
| Taste | normal - | für den Verbraucher annehmbar | — | Single value |
| Temperature | 6,8 °C | — | — | Single value |
| Total organic carbon (TOC) | 1,1 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 (11)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 0,62 mmol/L | — | — | Single value |
| Base capacity to pH 8.2 | mmol/L not determined | — | — | Single value |
| Calcium | 0,442 mmol/L | — | — | Single value |
| Carbonate hardness | 1,7 °dH | — | — | Single value |
| Hardness range (WRMG) | I - | — | — | Single value |
| Magnesium | 0,128 mmol/L | — | — | Single value |
| Oxygen | 12,9 mg/L | — | — | Single value |
| Potassium | 0,020 mmol/L | — | — | Single value |
| Silicate / silicic acid | 6,1 mg/L SiO2 | — | — | Single value |
| Sum of alkaline earth metals | 0,569 mmol/L | — | — | Single value |
| Total hardness | 3,2 °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.
Frequent questions about postcode 31157
- How hard is the water in Postcode 31157?
- Wasserversorgung Sarstedt publishes a total hardness of 3.2 °dH for the supply zone sarstedt gesamt (hardness range I). 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: 10.04.2018, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Postcode 31157?
- Wasserversorgung Sarstedt publishes a nitrate value of 5,5 mg/L for the supply zone sarstedt gesamt. The statutory parametric value is 50 mg/l; the measured value represents 11 % of the parametric value. Basis: 10.04.2018, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 31157?
- Wasserversorgung Sarstedt. The values shown here come from the supply zone sarstedt gesamt 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.