Water hardness and tap water in Tautenburg

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

Saale-Holzland-Kreis, Thüringen · Postcode 07778

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 Tautenburg has a total hardness of 15.8 °dH, hardness range “hard” (as of 1 December 2025). All tested parameters with a legal limit (7) meet the limits set by the German Drinking Water Ordinance (TrinkwV). Source: test report by JenaWasser. WaterScore (provisional): 100 out of 100 – the test report contains only 3 of 7 core parameters.

Limits of the Drinking Water OrdinancemetAll tested parameters (7), at the waterworks
Water hardness15.8 °dH, hardNo legal limit, only a range
Data coverageCore parameters: 3 of 7Score provisional

Verified drinking-water values

Parameter	Value	Limit (TrinkwV)	Sampling date	Source	Status
Nitrate	11 mg/L 22 % of the limit	50 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Nitrite	below the limit of quantification	0.5 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Uranium	0.002 mg/L 20 % of the limit	0.01 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Chloride	18 mg/L	250 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Sulphate	65 mg/L 26 % of the limit	250 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Sodium	5.6 mg/L	200 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Calcium	76 mg/L	–	1 December 2025	Zweckverband JenaWasser	verified
Magnesium	17 mg/L	–	1 December 2025	Zweckverband JenaWasser	verified
pH	7.8	6.5–9.5	1 December 2025	Zweckverband JenaWasser	verified
Total hardness	15.8 °dH (hard)	no legal limit	1 December 2025	Zweckverband JenaWasser	verified
Electrical conductivity	588 µS/cm	–	1 December 2025	Zweckverband JenaWasser	verified
Fluoride	below the limit of quantification	1.5 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Iron	0.016 mg/L	0.2 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Manganese	below the limit of quantification	0.05 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Ammonium	below the limit of quantification	0.5 mg/L	1 December 2025	Zweckverband JenaWasser	verified
Coliform bacteria	0 KBE/100ml	0 per 100 ml	1 December 2025	Zweckverband JenaWasser	verified

Note from the test report (in the German original): JenaWasser · Übersicht „Trinkwasserbeschaffenheit“ des Zweckverbands JenaWasser, Stand 1. Dezember 2025. Laut Übersicht erhält Tautenburg Trinkwasser aus: Bezug Zweckverband Eisenberg (Wasserwerk Ullrichsberg). Ein Probenahmedatum nennt die Übersicht nicht; sie enthält eine Auswahl von Parametern ohne Blei, Arsen, Kupfer, Nickel, Cadmium, Chrom, Quecksilber und PFAS.

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 Tautenburg, 65 % of buildings with living space were built before 1970, and a further 6 % 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 Tautenburg

Nitrate 11 mg/L – about 22 % 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.
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 7.8 – 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 Tautenburg in everyday life

At 15.8 °dH, Tautenburg 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 Tautenburg 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 Tautenburg 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 Tautenburg
Sodium	20 mg/l	5.6 mg/l – not above
Nitrate	10 mg/l	11 mg/l – above
Nitrite	0.02 mg/l	below the limit of quantification – cannot be assessed
Sulphate	240 mg/l	65 mg/l – not above
Fluoride	0.7 mg/l	below the limit of quantification – cannot be assessed
Manganese	0.05 mg/l	below the limit of quantification – cannot be assessed
Arsenic	0.005 mg/l	not in the report
Uranium	0.002 mg/l	0.002 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 5.6 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 Tautenburg

Can you drink the tap water in Tautenburg?

According to the verified values, yes: All tested parameters with a legal limit (7) 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 Tautenburg?

The total hardness is 15.8 °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 Tautenburg?

The published analysis by JenaWasser 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 Tautenburg?

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: 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

Trinkwasserbeschaffenheit und eingesetzte Aufbereitungsstoffe/Desinfektionsverfahren im Verbandsgebiet des Zweckverbandes JenaWasser, Stand 1. Dezember 2025 (Zweckverband JenaWasser) · SHA-256 of the evaluated file: 0c63739534e0b95c…, checked on 3 October 2026

Suggested citation: Trinkwassermonitor (2025): Tap water in Tautenburg. Values according to the water supplier’s test report, sampling date 1 December 2025; at the waterworks, not household plumbing. https://trinkwassermonitor.ink/en/tap-water/tautenburg/

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

Data as of: 1 December 2025 · 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 Tautenburg. Retrieved from https://trinkwassermonitor.ink/en/tap-water/tautenburg/.”