Water hardness and tap water in Eberswalde
Landkreis Barnim, Brandenburg · Postcode 16225, 16227
This page is a translation of the German version; the German page is authoritative. German version · Report a translation error
- Limits of the Drinking Water OrdinancemetAll tested parameters (12), at the waterworks
- Water hardness12.9 °dH, mediumNo legal limit, only a range
- Data coverageCore parameters: 3 of 7Score provisional
Verified drinking-water values
Note from the test report (in the German original): Der ZWA Eberswalde betreibt neun Wasserwerke für sein 17 Mitgliedsgemeinden umfassendes Verbandsgebiet im Landkreis Barnim. Die Stadt Eberswalde selbst wird überwiegend aus zwei Werken versorgt: 'Eberswalde 3 (Finow)' (ca. 46.600 Einwohner, hier als Hauptquelle verwendet, Probe vom 03.11.2025) und 'Eberswalde 1 (Stadtsee)' (ca. 6.320 Einwohner; dort etwas weicher: 11,1 °dH, Chlorid 12 mg/l, Sulfat 5,8 mg/l). Welches Werk eine konkrete Adresse versorgt, hängt vom Stadtteil ab. Die übrigen sieben Werke versorgen andere Ortsteile/Gemeinden außerhalb der Kernstadt und sind hier nicht berücksichtigt. Das vorliegende Laborprotokoll (AKS GmbH Finow, Prüfzeitraum 03.11.–13.11.2025) weist keine Werte für Blei, Arsen, Nitrit, Trihalomethane oder PFAS aus – diese fehlen daher, statt erfunden zu werden.
Background on household plumbing, not a measurement: in Eberswalde, 61 % of buildings with living space were built before 1970, and a further 10 % 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 Eberswalde
- Nitrate 2.4 mg/L – about 5 % of the limit of 50 mg/L and in the unremarkable range. Boiling does not reduce nitrate.
- Uranium – not detectable at the waterworks (limit 10 µg/L).
- pH 7.43 – 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 Eberswalde in everyday life
At 12.9 °dH, Eberswalde 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.
Baby food and low sodium: tap water in Eberswalde 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 Eberswalde 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)
| Substance | Maximum level | Value in Eberswalde |
|---|---|---|
| Sodium | 20 mg/l | 25.6 mg/l – above |
| Nitrate | 10 mg/l | 2.4 mg/l – not above |
| Nitrite | 0.02 mg/l | not in the report |
| Sulphate | 240 mg/l | 15 mg/l – not above |
| Fluoride | 0.7 mg/l | 0.22 mg/l – not above |
| Manganese | 0.05 mg/l | 0.003 mg/l – not above |
| Arsenic | 0.005 mg/l | not in the report |
| Uranium | 0.002 mg/l | below the detection limit (0.0002 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 Eberswalde
Can you drink the tap water in Eberswalde?
According to the verified values, yes: All tested parameters with a legal limit (12) meet the limits set by the German Drinking Water Ordinance (TrinkwV). WaterScore (provisional): 100 out of 100 – the test report contains only 3 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 Eberswalde?
The total hardness is 12.9 °dH – hardness range “medium”. Dose detergent for the hardness range “medium”.
Is there PFAS in the tap water in Eberswalde?
The published analysis by ZWA Eberswalde 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 Eberswalde?
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: 3 of 7 core parameters. Not in the test report: Nitrite, Lead, 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
- Parameter Wasserwerk Finow (Anlage Eberswalde 3), Probe TW25007465 (Zweckverband für Wasserversorgung und Abwasserentsorgung Eberswalde (ZWA)) · SHA-256 of the evaluated file: 28695d8f83fc6d22…, checked on 3 October 2026
Suggested citation: Trinkwassermonitor (2025): Tap water in Eberswalde. Values according to the water supplier’s test report, sampling date 3 November 2025; at the waterworks, not household plumbing. https://trinkwassermonitor.ink/en/tap-water/eberswalde/
JSON: /api/v1/evidence?city=eberswalde
Data as of: 3 November 2025 · verified: 17 of 17 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 Eberswalde. Retrieved from https://trinkwassermonitor.ink/en/tap-water/eberswalde/.”