Drinking water in 56112
For this postcode the responsible water supplier publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 1 underneath.
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.
Niederlahnstein - WW Oberwerth
TWIST RLP - Niederlahnstein - WW OberwerthAssigned 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0.004 µg/L | 0.1 µg/l | 4 % | Mean · Niederlahnstein - WW Oberwerth |
| Nitrate | 11 mg/L | 50 mg/l | 22 % | Mean · Niederlahnstein - WW Oberwerth |
| Lead | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Niederlahnstein - WW Oberwerth |
| Sulphate | 47 mg/L | 250 mg/l | 19 % | Mean · Niederlahnstein - WW Oberwerth |
| Sodium | 31 mg/L | 200 mg/l | 16 % | Mean · Niederlahnstein - WW Oberwerth |
* 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 (30 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Niederlahnstein - WW Oberwerth |
Chemical parameters (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | < 0.5 µg/L below limit of quantification | 5 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Arsenic | 1.1 µg/L | 10 µg/l | 11 % | Mean · Niederlahnstein - WW Oberwerth |
| Boron | < 0.1 mg/L below limit of quantification | 1 mg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Cadmium | < 0.3 µg/L below limit of quantification | 3 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Copper | < 0.05 mg/L below limit of quantification | 2 mg/l | < 3 % * | Mean · Niederlahnstein - WW Oberwerth |
| Cyanide | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Fluoride | 0.15 mg/L | 1.5 mg/l | 10 % | Mean · Niederlahnstein - WW Oberwerth |
| Lead | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Mercury | < 0.1 µg/L below limit of quantification | 1 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Nickel | < 2 µg/L below limit of quantification | 20 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Nitrate | 11 mg/L | 50 mg/l | 22 % | Mean · Niederlahnstein - WW Oberwerth |
| Nitrite | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Selenium | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Uranium | 1.1 µg/L | 10 µg/l | 11 % | Mean · Niederlahnstein - WW Oberwerth |
* 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.
PFAS (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0.004 µg/L | 0.1 µg/l | 4 % | Mean · Niederlahnstein - WW Oberwerth |
Indicator parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0.02 mg/L below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Ammonium | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Chloride | 44 mg/L | 250 mg/l | 18 % | Mean · Niederlahnstein - WW Oberwerth |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Niederlahnstein - WW Oberwerth |
| Iron | < 0.02 mg/L below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| Manganese | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Niederlahnstein - WW Oberwerth |
| pH | 7.43 - | 6,5–9,5 | — | Mean · Niederlahnstein - WW Oberwerth |
| Sodium | 31 mg/L | 200 mg/l | 16 % | Mean · Niederlahnstein - WW Oberwerth |
| Sulphate | 47 mg/L | 250 mg/l | 19 % | Mean · Niederlahnstein - WW Oberwerth |
| Temperature | 10 °C | — | — | Mean · Niederlahnstein - WW Oberwerth |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 77 mg/L | — | — | Mean · Niederlahnstein - WW Oberwerth |
| Magnesium | 13 mg/L | — | — | Mean · Niederlahnstein - WW Oberwerth |
| Potassium | 3.6 mg/L | — | — | Mean · Niederlahnstein - WW Oberwerth |
| Total hardness | 2.6 mmol/l | — | — | Mean · Niederlahnstein - WW Oberwerth |
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.
Show 1 more supply zone in this postcode
Oberlahnstein - WW Grenbach
TWIST RLP - Oberlahnstein - WW GrenbachAssigned 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.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0.029 µg/L | 0.1 µg/l | 29 % | Mean · Oberlahnstein - WW Grenbach |
| Nitrate | 23.6 mg/L | 50 mg/l | 47 % | Mean · Oberlahnstein - WW Grenbach |
| Lead | 2 µg/L | 10 µg/l | 20 % | Mean · Oberlahnstein - WW Grenbach |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Oberlahnstein - WW Grenbach |
| Sulphate | 77.8 mg/L | 250 mg/l | 31 % | Mean · Oberlahnstein - WW Grenbach |
| Sodium | 58.1 mg/L | 200 mg/l | 29 % | Mean · Oberlahnstein - WW Grenbach |
Show all recorded parameters (30 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Oberlahnstein - WW Grenbach |
Chemical parameters (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | < 0.5 µg/L below limit of quantification | 5 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Arsenic | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Boron | 0.11 mg/L | 1 mg/l | 11 % | Mean · Oberlahnstein - WW Grenbach |
| Cadmium | < 0.3 µg/L below limit of quantification | 3 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Copper | 0.009 mg/L | 2 mg/l | 0.4 % | Mean · Oberlahnstein - WW Grenbach |
| Cyanide | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Fluoride | 0.69 mg/L | 1.5 mg/l | 46 % | Mean · Oberlahnstein - WW Grenbach |
| Lead | 2 µg/L | 10 µg/l | 20 % | Mean · Oberlahnstein - WW Grenbach |
| Mercury | < 0.1 µg/L below limit of quantification | 1 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Nickel | < 2 µg/L below limit of quantification | 20 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Nitrate | 23.6 mg/L | 50 mg/l | 47 % | Mean · Oberlahnstein - WW Grenbach |
| Nitrite | < 0.01 mg/L below limit of quantification | 0.5 mg/l | < 2 % * | Mean · Oberlahnstein - WW Grenbach |
| Selenium | 2.5 µg/L | 10 µg/l | 25 % | Mean · Oberlahnstein - WW Grenbach |
| Uranium | 2 µg/L | 10 µg/l | 20 % | Mean · Oberlahnstein - WW Grenbach |
* 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.
PFAS (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0.029 µg/L | 0.1 µg/l | 29 % | Mean · Oberlahnstein - WW Grenbach |
Indicator parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | < 0.02 mg/L below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| Ammonium | 0.01 mg/L | 0.5 mg/l | 2 % | Mean · Oberlahnstein - WW Grenbach |
| Chloride | 58.4 mg/L | 250 mg/l | 23 % | Mean · Oberlahnstein - WW Grenbach |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Oberlahnstein - WW Grenbach |
| Iron | 0.092 mg/L | 0.2 mg/l | 46 % | Mean · Oberlahnstein - WW Grenbach |
| Manganese | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Oberlahnstein - WW Grenbach |
| pH | 7.73 - | 6,5–9,5 | — | Mean · Oberlahnstein - WW Grenbach |
| Sodium | 58.1 mg/L | 200 mg/l | 29 % | Mean · Oberlahnstein - WW Grenbach |
| Sulphate | 77.8 mg/L | 250 mg/l | 31 % | Mean · Oberlahnstein - WW Grenbach |
| Temperature | 19 °C | — | — | Mean · Oberlahnstein - WW Grenbach |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 88.3 mg/L | — | — | Mean · Oberlahnstein - WW Grenbach |
| Magnesium | 18.3 mg/L | — | — | Mean · Oberlahnstein - WW Grenbach |
| Potassium | 5.7 mg/L | — | — | Mean · Oberlahnstein - WW Grenbach |
| Total hardness | 2.92 mmol/l | — | — | Mean · Oberlahnstein - WW Grenbach |
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 56112
- How hard is the water in Postcode 56112?
- TWIST RLP - Niederlahnstein - WW Oberwerth publishes a total hardness of 2.6 mmol/l for the supply zone Niederlahnstein - WW Oberwerth — that corresponds to 14.6 °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: Publication by the water supplier, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Postcode 56112?
- TWIST RLP - Niederlahnstein - WW Oberwerth publishes a nitrate value of 11 mg/L for the supply zone Niederlahnstein - WW Oberwerth. The statutory parametric value is 50 mg/l; the measured value represents 22 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Are PFAS detectable in the drinking water in Postcode 56112?
- TWIST RLP - Niederlahnstein - WW Oberwerth publishes for the supply zone Niederlahnstein - WW Oberwerth a sum value PFAS-20 of 0.004 µg/L. The statutory parametric value is 0.1 µg/l; the measured value represents 4 % of the parametric value. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Who supplies the drinking water in Postcode 56112?
- TWIST RLP - Niederlahnstein - WW Oberwerth. The values shown here come from the supply zone Niederlahnstein - WW Oberwerth 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.