Water hardness and tap water in Neuwied

Name: Water hardness and tap water in Neuwied
Creator: Trinkwassermonitor
License: https://creativecommons.org/licenses/by/4.0/

Landkreis Neuwied, Rheinland-Pfalz · Postcode 56564, 56566, 56567

This page is a translation of the German version; the German page is authoritative. German version · Report a translation error

Short answer: The tap water in Neuwied has a total hardness of 16 °dH, hardness range “hard” (as of April 2026). All tested parameters with a legal limit (13) meet the limits set by the German Drinking Water Ordinance (TrinkwV). Source: test report by Stadtwerke Neuwied. WaterScore: 100 out of 100 (data coverage: 6 of 7 core parameters).

Limits of the Drinking Water OrdinancemetAll tested parameters (13), at the waterworks
Water hardness16 °dH, hardNo legal limit, only a range
Data coverageCore parameters: 6 of 7Score based on complete data

Verified drinking-water values

Parameter	Value	Limit (TrinkwV)	Sampling date	Source	Status
Nitrate	15 mg/L 30 % of the limit	50 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
PFAS (sum)	0.015 µg/L 15 % of the limit	0.1 µg/L in force since 12 January 2026 from 12 January 2028: additionally PFAS-4 0.02 µg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Lead	< 0.001 mg/L	0.01 mg/L from 12 January 2028: 0.005 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Arsenic	< 0.001 mg/L	0.01 mg/L new plants from 2028, all from 2036: 0.004 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Uranium	0.002 mg/L 20 % of the limit	0.01 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Copper	0.063 mg/L	2 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Chloride	42 mg/L 17 % of the limit	250 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Sulphate	43 mg/L 17 % of the limit	250 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Sodium	38 mg/L 19 % of the limit	200 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
pH	7.2	6.5–9.5	April 2026	Stadtwerke Neuwied GmbH	verified
Total hardness	16 °dH (hard)	no legal limit	April 2026	Stadtwerke Neuwied GmbH	verified
Electrical conductivity	634 µS/cm	–	April 2026	Stadtwerke Neuwied GmbH	verified
Fluoride	0.31 mg/L 21 % of the limit	1.5 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Manganese	< 0.005 mg/L	0.05 mg/L	April 2026	Stadtwerke Neuwied GmbH	verified
Coliform bacteria	0 KBE/100ml	0 per 100 ml	April 2026	Stadtwerke Neuwied GmbH	verified
Trihalomethanes (THM)	< 5 µg/L	50 µg/L	April 2026	Stadtwerke Neuwied GmbH	verified

Note from the test report (in the German original): Tabelle 'Wasserversorgung Stadt Neuwied' (deckt laut Stadtwerke-Website die Innenstadt und alle Stadtteile ab: Altwied, Block, Engers, Feldkirchen, Gladbach, Heddesdorf, Heimbach-Weis, Irlich, Niederbieber, Oberbieber, Rodenbach, Segendorf, Torney) – nicht zu verwechseln mit der separaten, im selben PDF enthaltenen Tabelle des Kreiswasserwerks (KWW) Neuwied für andere Landkreisgemeinden. Analysedatum laut Quelle nur mit 'April 2026' angegeben, exakter Tag nicht genannt (PDF-Erstellungsdatum: 12.06.2026). Eisen und Ammonium werden in dieser Tabelle nicht ausgewiesen. Bei PFAS-20 liegt mit 15 ng/L (0,0150 µg/l) ein real gemessener, nicht als 'unter Bestimmungsgrenze' geführter Wert vor – deutlich unter dem Grenzwert von 100 ng/L.

Is a value wrong or out of date? Report an error – we check every report against the original source.

Water at your own tap: The values describe the water the supplier delivers – not automatically the water at your tap. The water supplier is responsible up to the service connection (Hausanschluss); the building owner is responsible for the pipes beyond it. Lead can dissolve from lead pipes, leaded solder joints or old brass fittings, especially when water has stood in the pipes for a long time (stagnant water); this mainly affects buildings constructed before about 1973. If water has stood in the pipes for several hours, let it run until it comes out cool. If you suspect lead pipes, a lead analysis of the stagnant water by an accredited laboratory will help.

Background on household plumbing, not a measurement: in Neuwied, 58 % of buildings with living space were built before 1970, and a further 14 % between 1970 and 1979 (Zensus 2022, Statistisches Bundesamt, dl-de/by-2-0). (Zensus 2022) According to the German Environment Agency (Umweltbundesamt), lead pipes exist at most in houses built before 1973 – and by no means in all of them. Whether there are any in your house is known to the owner or a plumber. (UBA)

What the values mean for Neuwied

Nitrate 15 mg/L – about 30 % of the limit of 50 mg/L and in the medium range – such values occur in catchments shaped by agriculture. Boiling does not reduce nitrate.
PFAS (sum of PFAS-20) 15 ng/L – about 15 % of the limit of 100 ng/L (since 12 January 2026).
Lead – not detectable at the waterworks. Lead gets into the water almost only through old lead pipes in household plumbing, not via the supplier.
Uranium 2 µg/L – within the checked range against a limit of 10 µg/L. In some regions uranium occurs naturally from the rock (geogenic).
pH 7.2 – within the range of the Drinking Water Ordinance (6.5 to 9.5). The pH determines how corrosive the water is in household plumbing.

Water hardness in Neuwied in everyday life

At 16 °dH, Neuwied is in the hardness range “hard” (soft: below 8.4 °dH, medium: 8.4–14 °dH, hard: above 14 °dH).

Dose detergent for the hardness range “hard” – a larger amount is needed; a water softener for the washing machine can save detergent.
Limescale builds up quickly: descale the kettle about every two to three weeks, and taps and shower heads too.
In your own house, limescale protection or a water softener can be worthwhile at this hardness; in a rented flat, the owner decides.

Baby food and low sodium: tap water in Neuwied next to the bottled-water thresholds

Bottled water may only be labelled “suitable for preparing infant food” („geeignet für die Zubereitung von Säuglingsnahrung“) if it keeps to the maximum levels of the German Mineral and Table Water Ordinance (Mineral- und Tafelwasser-Verordnung, Annex 6). Here the published values for Neuwied are shown next to them, each substance on its own. This is a comparison with labelling thresholds for bottled water, not a statement on whether your tap water is suitable for baby food. (Min/TafelWV, Anlage 6)

Values at the waterworks next to the maximum levels for bottled water “suitable for infant food”
Substance	Maximum level	Value in Neuwied
Sodium	20 mg/l	38 mg/l – above
Nitrate	10 mg/l	15 mg/l – above
Nitrite	0.02 mg/l	not in the report
Sulphate	240 mg/l	43 mg/l – not above
Fluoride	0.7 mg/l	0.31 mg/l – not above
Manganese	0.05 mg/l	below the detection limit (0.005 mg/l) – not above
Arsenic	0.005 mg/l	below the detection limit (0.001 mg/l) – not above
Uranium	0.002 mg/l	0.002 mg/l – not above

For context: the German Environment Agency (Umweltbundesamt) considers preparing baby food with bottled water carrying this label necessary only in rare cases, for example when tap water is temporarily allowed to contain more than 50 mg/l nitrate. (UBA 2016, p. 59) Water from lead pipes in the house is always unsuitable for infants. (UBA 2020, p. 16) The values apply at the waterworks. Questions about baby food are answered by your midwife, your paediatrician and the health office (Gesundheitsamt).

Frequently asked questions about tap water in Neuwied

Can you drink the tap water in Neuwied?

According to the verified values, yes: All tested parameters with a legal limit (13) meet the limits set by the German Drinking Water Ordinance (TrinkwV). WaterScore: 100 out of 100 (data coverage: 6 of 7 core parameters). This applies to the water from the waterworks – restrictions can only arise from old household plumbing.

How hard is the water in Neuwied?

The total hardness is 16 °dH – hardness range “hard”. Dose detergent for the hardness range “hard” – a larger amount is needed; a water softener for the washing machine can save detergent.

Is there PFAS in the tap water in Neuwied?

Yes, in measurable amounts: according to the published analysis by Stadtwerke Neuwied (as of April 2026), the sum of PFAS-20 is 0.015 µg/l – that is 15 % of the limit of 0.1 µg/l, which has applied since 12 January 2026. Even this sum of all 20 substances is below the limit of 0.02 µg/l that applies from 12 January 2028 to the sum of four of them (PFAS-4).

Do I need to filter my tap water in Neuwied?

Based on the verified supplier values, a filter is not necessary. It can make sense if you do not like the taste. If you suspect lead pipes in an old building, a filter does not help; a laboratory analysis at the tap does – that is a question of the household plumbing, not of the water leaving the works.

WaterScore

Total100 / 100
Chemical safety100 / 100
Heavy metals100 / 100
PFAS100 / 100
Nutrients100 / 100
General parameters100 / 100
Data timeliness100 / 100
Data quality100 / 100

Data coverage: 6 of 7 core parameters. Not in the test report: Nitrite. Missing parameters are neither estimated nor counted as harmless: the score is based only on the values available. It is not a health assessment and says nothing about the water beyond the service connection. Methodology v3: how we calculate the WaterScore.

Evidence: cite and check

Trinkwasseranalyse der Stadtwerke Neuwied GmbH 2026 — Wasserversorgung Stadt Neuwied (Stadtwerke Neuwied GmbH) · SHA-256 of the evaluated file: b9198fa98dd30eac…, checked on 3 October 2026

Suggested citation: Trinkwassermonitor (2026): Tap water in Neuwied. Values according to the water supplier’s test report, sampling date April 2026; at the waterworks, not household plumbing. https://trinkwassermonitor.ink/en/tap-water/neuwied/

JSON: /api/v1/evidence?city=neuwied

Data as of: April 2026 · verified: 16 of 16 evaluated parameters.

This page shows only verified test data with sources, or states explicitly where data is missing (no estimated values). Cite as: “Trinkwassermonitor (2026). Tap water in Neuwied. Retrieved from https://trinkwassermonitor.ink/en/tap-water/neuwied/.”