Water hardness and tap water in Rehden

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

Landkreis Diepholz, Niedersachsen · Postcode 49453

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 Rehden has a total hardness of 10.3 °dH, hardness range “medium” (as of March 2024). Source: test report by Stadtwerke EVB Huntetal Netz GmbH. WaterScore (provisional): 67.6 out of 100 – the test report contains only 0 of 7 core parameters.

Limits of the Drinking Water Ordinancecannot be checkedThe report contains no parameter with a legal limit.
Water hardness10.3 °dH, mediumNo legal limit, only a range
Data coverageCore parameters: 0 of 7Score provisional

Verified drinking-water values

Parameter	Value	Limit (TrinkwV)	Sampling date	Source	Status
Total hardness	10.3 °dH (medium)	no legal limit	March 2024	Stadtwerke EVB Huntetal Netz GmbH (veröffentlicht im BDEW-Wasserportal)	verified

Note from the test report (in the German original): Stadtwerke EVB Huntetal Netz GmbH · Trinkwasseranalyse für das Versorgungsgebiet WVG WW St. Hülfe, Stand März 2024, veröffentlicht im BDEW-Wasserportal. Die Werte wurden automatisch aus dem PDF ausgelesen und einzeln gegengeprüft; die Seite steht beim Originalwert. Laut Wasserportal liegen der Ortsmittelpunkt von Rehden und vier Prüfpunkte rund 1,5 km darum in diesem Versorgungsgebiet. Welches Wasser an einer bestimmten Adresse ankommt, sagt verbindlich der Versorger. Die Werte gelten ab Wasserwerk.

Is a value wrong or out of date?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 Rehden, 37 % of buildings with living space were built before 1970, and a further 8 % 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)

Water hardness in Rehden in everyday life

At 10.3 °dH, Rehden is in the hardness range “medium” (soft: below 8.4 °dH, medium: 8.4–14 °dH, hard: above 14 °dH).

Dose detergent for the hardness range “medium”.
As a rule of thumb, descale the kettle about every four to six weeks and the coffee machine as the manufacturer recommends.
A limescale protection device is not a must at medium hardness; regular descaling is often enough.

Frequently asked questions about tap water in Rehden

Can you drink the tap water in Rehden?

For Rehden we have no values with a legal limit that we could compare. Stadtwerke EVB Huntetal Netz GmbH can give you reliable information.

How hard is the water in Rehden?

The total hardness is 10.3 °dH – hardness range “medium”. Dose detergent for the hardness range “medium”.

Is there PFAS in the tap water in Rehden?

The published analysis by Stadtwerke EVB Huntetal Netz GmbH 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 Rehden?

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)67.6 / 100
Data timeliness68.8 / 100
Data quality66.7 / 100

Data coverage: 0 of 7 core parameters. Not in the test report: Nitrate, Nitrite, Lead, Copper, Arsenic, Uranium 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

Trinkwasseranalyse Stadtwerke EVB Huntetal Netz GmbH, Stand März 2024 (Stadtwerke EVB Huntetal Netz GmbH (veröffentlicht im BDEW-Wasserportal)) · SHA-256 of the evaluated file: f45269c4d70a3831…, checked on 11 October 2026

Suggested citation: Trinkwassermonitor (2024): Tap water in Rehden. Values according to the water supplier’s test report, sampling date March 2024; at the waterworks, not household plumbing. https://trinkwassermonitor.ink/en/tap-water/rehden/

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

Data as of: March 2024 · verified: 1 of 1 evaluated parameters. (older than twelve months – under § 46 TrinkwV your supplier must publish current values online)

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 Rehden. Retrieved from https://trinkwassermonitor.ink/en/tap-water/rehden/.”