Water hardness and tap water in Fürth

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

Fürth, Bayern · Postcode 90762, 90763, 90765, 90766, 90768

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 Fürth has a total hardness of 14.7 °dH, hardness range “hard” (as of September 2026). All tested parameters with a legal limit (6) meet the limits set by the German Drinking Water Ordinance (TrinkwV). Source: test report by infra fürth. WaterScore (provisional): 100 out of 100 – the test report contains only 2 of 7 core parameters.

Limits of the Drinking Water OrdinancemetAll tested parameters (6), at the waterworks
Water hardness14.7 °dH, hardNo legal limit, only a range
Data coverageCore parameters: 2 of 7Score provisional

Verified drinking-water values

Parameter	Value	Limit (TrinkwV)	Sampling date	Source	Status
Nitrate	7.9 mg/L 16 % of the limit	50 mg/L	September 2026	infra fürth GmbH	verified
Uranium	0.0013 mg/L 13 % of the limit	0.01 mg/L	September 2026	infra fürth GmbH	verified
Sulphate	21 mg/L	250 mg/L	September 2026	infra fürth GmbH	verified
Sodium	11 mg/L	200 mg/L	September 2026	infra fürth GmbH	verified
Calcium	74 mg/L	–	September 2026	infra fürth GmbH	verified
Magnesium	19 mg/L	–	September 2026	infra fürth GmbH	verified
pH	7.63	6.5–9.5	September 2026	infra fürth GmbH	verified
Total hardness	14.7 °dH (hard)	no legal limit	September 2026	infra fürth GmbH	verified
Fluoride	0.09 mg/L	1.5 mg/L	September 2026	infra fürth GmbH	verified

Note from the test report (in the German original): infra fürth veröffentlicht keine herunterladbare Trinkwasseranalyse-PDF für Endkunden, sondern ein interaktives Wasserwerte-Widget mit drei Versorgungszonen: Niederdruckzone (Dambach, Innenstadt, Südstadt, Weikershof), Hochdruckzone (u. a. Atzenhof, Burgfarrnbach, Espan, Hardhöhe, Poppenreuth, Unterfarrnbach, Vach) und Mischwasser Knoblauchsland (u. a. Bislohe, Stadeln, Steinach). Die hier eingetragenen Werte stammen aus der Niederdruckzone (Standardauswahl des Widgets, deckt den Stadtkern ab); Hochdruckzone und Mischwasser Knoblauchsland weichen teils deutlich ab (z. B. Härte 14,7 / 16,7 / 13,19 °dH). Die Knoblauchsland-Werte sind laut infra fürth aktuell noch Schätzwerte aus wasserchemischer Berechnung, da ab 1.9.2026 schrittweise ein neues Wasserwerk in Betrieb geht. Ein Probenahme- oder Berichtsdatum nennt das Widget nicht; angegeben ist deshalb nur der Stand der Seite (September 2026). Leitfähigkeit, Chlorid, Nitrit, Eisen, Mangan, Ammonium, Blei, Kupfer, Quecksilber, Arsen, coliforme Keime, Trihalomethane und PFAS werden auf dieser Seite nicht veröffentlicht und wurden daher nicht aufgenommen; laut Seite werden zwar über 60 Parameter geprüft und ans Gesundheitsamt gemeldet, aber nicht online publiziert.

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 Fürth, 45 % of buildings with living space were built before 1970, and a further 13 % 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 Fürth

Nitrate 7.9 mg/L – about 16 % of the limit of 50 mg/L and in the unremarkable range. Boiling does not reduce nitrate.
Uranium 1.3 µg/L – unremarkable against a limit of 10 µg/L. In some regions uranium occurs naturally from the rock (geogenic).
pH 7.63 – 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 Fürth in everyday life

At 14.7 °dH, Fürth 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 Fürth 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 Fürth 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 Fürth
Sodium	20 mg/l	11 mg/l – not above
Nitrate	10 mg/l	7.9 mg/l – not above
Nitrite	0.02 mg/l	not in the report
Sulphate	240 mg/l	21 mg/l – not above
Fluoride	0.7 mg/l	0.09 mg/l – not above
Manganese	0.05 mg/l	not in the report
Arsenic	0.005 mg/l	not in the report
Uranium	0.002 mg/l	0.0013 mg/l – not above

Against the other thresholds of Annex 6, the water would qualify as: low in sodium (“suitable for a low-sodium diet”) (Sodium 11 mg/l, threshold below 20 mg/l).

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 Fürth

Can you drink the tap water in Fürth?

According to the verified values, yes: All tested parameters with a legal limit (6) meet the limits set by the German Drinking Water Ordinance (TrinkwV). WaterScore (provisional): 100 out of 100 – the test report contains only 2 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 Fürth?

The total hardness is 14.7 °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 Fürth?

The published analysis by infra fürth that we evaluated gives no PFAS value. This does not mean there is no PFAS in the water; there is simply no figure for it. Since 12 January 2026, a limit of 0.1 µg/l has applied to the sum of PFAS-20. The supplier can tell you whether PFAS was measured and with what result.

Do I need to filter my tap water in Fürth?

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

Total (provisional)100 / 100
Chemical safety100 / 100
Heavy metals100 / 100
Nutrients100 / 100
General parameters100 / 100
Data timeliness100 / 100
Data quality100 / 100

Data coverage: 2 of 7 core parameters. Not in the test report: Nitrite, Lead, Copper, Arsenic and PFAS (sum). Missing parameters are neither estimated nor counted as harmless: the score is based only on the values available and is therefore provisional. 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

Trinkwasser: Die Wasserwerte und Inhaltsstoffe (infra fürth GmbH)

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

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

Data as of: September 2026 · verified: 9 of 9 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 Fürth. Retrieved from https://trinkwassermonitor.ink/en/tap-water/fuerth/.”