Drinking water in Oberndorf am Neckar
4 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
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 Brandeck / Zweckverband Heimbach Wasserversorgungsgruppe
Zweckverband Heimbach Wasserversorgungsgruppe (Dornhan)Assigned 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 21/08/2014. 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 | 17,0 mg/l | 50 mg/l | 34 % | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
| Sulphate | 34,0 mg/l | 250 mg/l | 14 % | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
Show all recorded parameters (6 — most recent value per parameter)
Chemical parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 17,0 mg/l | 50 mg/l | 34 % | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
Indicator parameters (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sulphate | 34,0 mg/l | 250 mg/l | 14 % | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
Further parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 65,1 mg/l | — | — | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
| Hydrogen carbonate | 184,0 mg/l | — | — | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
| Magnesium | 11,8 mg/l | — | — | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
| Total hardness | 11,9 °dH | — | — | Single value · 21.08.2014 nach Inbetriebnahme der Wasserenthärtungsanlage |
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.
Postcodes in this zone: 78727
Show 3 more supply zones
WW Mühlberg / Wasserfallstraße 41/1; Reinwasser Auslauf ON
Stadt Oberndorf am Neckar - Eigenbetrieb WasserversorgungAssigned 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 31/10/2023. 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 | 27 mg/l | 50 mg/l | 54 % | Single value |
| Sulphate | 61 mg/l | 250 mg/l | 24 % | Single value |
| Sodium | 5,7 mg/l | 200 mg/l | 3 % | Single value |
Show all recorded parameters (40 — most recent value per parameter)
Chemical parameters (19)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,0005 mg/l below limit of quantification | 3 µg/l | < 17 % * | Single value |
| Atrazine | <0,000025 mg/l below limit of quantification | — | — | Single value |
| Benzene | <0,00025 mg/l below limit of quantification | 1 µg/l | < 25 % * | Single value |
| Boron | <0,02 mg/l below limit of quantification | 1 mg/l | < 2 % * | Single value |
| Bromate | <0,0025 mg/l below limit of quantification | 10 µg/l | < 25 % * | Single value |
| Chromium | 0,0006 mg/l | 25 µg/l | 2 % | Single value |
| Cyanide | <0,005 mg/l below limit of quantification | 50 µg/l | < 10 % * | Single value |
| Fluoride | 0,16 mg/l | 1.5 mg/l | 11 % | Single value |
| Mercury | <0,0001 mg/l below limit of quantification | 1 µg/l | < 10 % * | Single value |
| Metazachlor | <0,000025 mg/l below limit of quantification | — | — | Single value |
| Metolachlor | <0,000025 mg/l below limit of quantification | — | — | Single value |
| Nitrate | 27 mg/l | 50 mg/l | 54 % | Single value |
| Pesticides — Total | (n. b.) mg/l not determined | 0.5 µg/l | — | Single value |
| Selenium | <0,001 mg/l below limit of quantification | 10 µg/l | < 10 % * | Single value |
| Simazine | <0,000025 mg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,000025 mg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,0005 mg/l below limit of quantification | — | — | Single value |
| Uranium | 0,0005 mg/l | 10 µg/l | 5 % | 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 (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,005 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Single value |
| Ammonium | <0,06 mg/l below limit of quantification | 0.5 mg/l | < 12 % * | Single value |
| Calcite dissolution capacity | -130 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 23 mg/l | 250 mg/l | 9 % | Single value |
| Iron | <0,005 mg/l below limit of quantification | 0.2 mg/l | < 3 % * | Single value |
| Manganese | <0,001 mg/l below limit of quantification | 50 µg/l | < 2 % * | Single value |
| Sodium | 5,7 mg/l | 200 mg/l | 3 % | Single value |
| Sulphate | 61 mg/l | 250 mg/l | 24 % | Single value |
| Temperature | 9,9 °C | — | — | Single value |
| Total organic carbon (TOC) | 0,3 mg/l | ohne anormale Veränderung | — | 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 | 3,5 mmol/l | — | — | Single value |
| Calcium | 55,7 mg/l | — | — | Single value |
| Carbonate hardness | 1,77 mmol/l | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Hydrogen carbonate | 220 mg/l | — | — | Single value |
| Magnesium | 31,2 mg/l | — | — | Single value |
| Oxygen | 11,4 mg/l | — | — | Single value |
| Phosphate | <0,6 mg/l below limit of quantification | — | — | Single value |
| Potassium | 1,3 mg/l | — | — | Single value |
| Saturation index | 1,95 | — | — | Single value |
| Total hardness | 2,67 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.
Postcodes in this zone: 78727
Indikatorparameter
Stadt Oberndorf am Neckar - Eigenbetrieb WasserversorgungAssigned 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 31/10/2023. 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.
No core values are available for this zone yet.
Show all recorded parameters (2 — most recent value per parameter)
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Conductivity (25 °C) | 534 µS/cm | 2,790 µS/cm | — | Single value · Indikatorparameter |
| pH | 8,15 | 6,5–9,5 | — | Single value · Indikatorparameter |
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.
Postcodes in this zone: 78727
Vor-Ort-Parameter
Stadt Oberndorf am Neckar - Eigenbetrieb WasserversorgungAssigned 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 31/10/2023. 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.
No core values are available for this zone yet.
Show all recorded parameters (2 — most recent value per parameter)
Indicator parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Conductivity (25 °C) | 544 µS/cm | 2,790 µS/cm | — | Single value · Vor-Ort-Parameter |
| pH | 8,10 | 6,5–9,5 | — | Single value · Vor-Ort-Parameter |
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.
Postcodes in this zone: 78727
Frequently asked questions about drinking water in Oberndorf am Neckar
- How hard is the water in Oberndorf am Neckar?
- Zweckverband Heimbach Wasserversorgungsgruppe (Dornhan) publishes a total hardness of 11.9 °dH for the supply zone Wasserwerk Brandeck / Zweckverband Heimbach Wasserversorgungsgruppe (hardness range medium). 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: Publication by the water supplier, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Oberndorf am Neckar?
- Zweckverband Heimbach Wasserversorgungsgruppe (Dornhan) publishes a nitrate value of 17,0 mg/l for the supply zone Wasserwerk Brandeck / Zweckverband Heimbach Wasserversorgungsgruppe. The statutory parametric value is 50 mg/l; the measured value represents 34 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Who supplies the drinking water in Oberndorf am Neckar?
- Zweckverband Heimbach Wasserversorgungsgruppe (Dornhan). The values shown here come from the supply zone Wasserwerk Brandeck / Zweckverband Heimbach Wasserversorgungsgruppe 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.