How hard is the water in Postcode 54347?

TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW publishes a total hardness of 0.65 mmol/l for the supply zone Obere Salm, Übergabe ZWEM (WW), TW — that corresponds to 3.6 °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 54347?

TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW publishes a nitrate value of 7.9 mg/L for the supply zone Obere Salm, Übergabe ZWEM (WW), TW. The statutory parametric value is 50 mg/l; the measured value represents 16 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.

Are PFAS detectable in the drinking water in Postcode 54347?

TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW publishes for the supply zone Obere Salm, Übergabe ZWEM (WW), TW a sum value PFAS-20 below the limit of quantification (entry in the report: "< 0.03 µg/L"). This is not to be read as "PFAS-free": below the limit of quantification, the measurement cannot make any statement. The statutory parametric value is 0.1 µg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. 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 54347?

TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW. The values shown here come from the supply zone Obere Salm, Übergabe ZWEM (WW), TW 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.

Drinking water in 54347

Q: Who supplies the drinking water in Postcode 54347?

TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW. The values shown here come from the supply zone Obere Salm, Übergabe ZWEM (WW), TW 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.

One supply zone, water supplier: TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW.

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.

Obere Salm, Übergabe ZWEM (WW), TW

TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW

Assigned 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.

Water hardness

3.6 °dH

Hardness range soft

Key values Obere Salm, Übergabe ZWEM (WW), TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	< 0.03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Nitrate	7.9 mg/L	50 mg/l	16 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Lead	< 1 µg/L below limit of quantification	10 µg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Escherichia coli (E. coli)	0 Anzahl/100ml	0/100 ml	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Sulphate	4 mg/L	250 mg/l	2 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Sodium	5.3 mg/L	200 mg/l	3 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW

* 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)

Microbiology – Obere Salm, Übergabe ZWEM (WW), TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 Anzahl/100ml	0/100 ml	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW

Chemical parameters (14)

Chemical parameters – Obere Salm, Übergabe ZWEM (WW), TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Antimony	< 1 µg/L below limit of quantification	5 µg/l	< 20 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Arsenic	< 1 µg/L below limit of quantification	10 µg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Boron	< 0.02 mg/L below limit of quantification	1 mg/l	< 2 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Cadmium	< 0.1 µg/L below limit of quantification	3 µg/l	< 3 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Copper	0.002 mg/L	2 mg/l	0.1 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Cyanide	< 0.005 mg/L below limit of quantification	50 µg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Fluoride	< 0.15 mg/L below limit of quantification	1.5 mg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Lead	< 1 µg/L below limit of quantification	10 µg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Mercury	< 0.1 µg/L below limit of quantification	1 µg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Nickel	< 1 µg/L below limit of quantification	20 µg/l	< 5 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Nitrate	7.9 mg/L	50 mg/l	16 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Nitrite	< 0.01 mg/L below limit of quantification	0.5 mg/l	< 2 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Selenium	< 1 µg/L below limit of quantification	10 µg/l	< 10 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Uranium	< 0.1 µg/L below limit of quantification	10 µg/l	< 1 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW

PFAS (1)

PFAS – Obere Salm, Übergabe ZWEM (WW), TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	< 0.03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW

Indicator parameters (10)

Indicator parameters – Obere Salm, Übergabe ZWEM (WW), TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	0.036 mg/L	0.2 mg/l	18 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Ammonium	< 0.06 mg/L below limit of quantification	0.5 mg/l	< 12 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Chloride	8.4 mg/L	250 mg/l	3 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Coliform bacteria	0 Anzahl/100ml	0/100 ml	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Iron	< 0.005 mg/L below limit of quantification	0.2 mg/l	< 3 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Manganese	< 0.001 mg/L below limit of quantification	50 µg/l	< 2 % *	Mean · Obere Salm, Übergabe ZWEM (WW), TW
pH	8.03 -	6,5–9,5	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Sodium	5.3 mg/L	200 mg/l	3 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Sulphate	4 mg/L	250 mg/l	2 %	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Temperature	10.8 °C	—	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW

Further parameters (4)

Further parameters – Obere Salm, Übergabe ZWEM (WW), TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	22.9 mg/L	—	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Magnesium	2.6 mg/L	—	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Potassium	2 mg/L	—	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW
Total hardness	0.65 mmol/l	—	—	Mean · Obere Salm, Übergabe ZWEM (WW), TW

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://geodaten-wasser.rlp-umwelt.de/twist/2677695006/trinkwasserqualitaet · Mittelwerte · retrieved on 13/07/2026

Frequent questions about postcode 54347

How hard is the water in Postcode 54347?: TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW publishes a total hardness of 0.65 mmol/l for the supply zone Obere Salm, Übergabe ZWEM (WW), TW — that corresponds to 3.6 °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 54347?: TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW publishes a nitrate value of 7.9 mg/L for the supply zone Obere Salm, Übergabe ZWEM (WW), TW. The statutory parametric value is 50 mg/l; the measured value represents 16 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
Are PFAS detectable in the drinking water in Postcode 54347?: TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW publishes for the supply zone Obere Salm, Übergabe ZWEM (WW), TW a sum value PFAS-20 below the limit of quantification (entry in the report: "< 0.03 µg/L"). This is not to be read as "PFAS-free": below the limit of quantification, the measurement cannot make any statement. The statutory parametric value is 0.1 µg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. 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 54347?: TWIST RLP - Obere Salm, Übergabe ZWEM (WW), TW. The values shown here come from the supply zone Obere Salm, Übergabe ZWEM (WW), TW 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.