How hard is the water in Hüttwilen?

Wasserversorgung der Politische Gemeinde Hüttwilen publishes a total hardness of 37.85 °fH for the supply zone Ortsteil Hüttwilen — that corresponds to 21.2 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2022, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Hüttwilen?

Wasserversorgung der Politische Gemeinde Hüttwilen publishes a nitrate value of 20.365 mg/l for the supply zone Ortsteil Hüttwilen. The statutory parametric value is 40 mg/l; the measured value represents 51 % of the parametric value. Basis: 2022, retrieved on 07/08/2026.

Who supplies the drinking water in Hüttwilen?

Wasserversorgung der Politische Gemeinde Hüttwilen. The values shown here come from the supply zone Ortsteil Hüttwilen and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

Drinking water in Hüttwilen

2 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. To determine the exact match, look up the postcode.

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.

< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.

Ortsteil Hüttwilen

Wasserversorgung der Politische Gemeinde Hüttwilen

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2022. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Water hardness

21.2 °dH

Hardness range hard

Key values Ortsteil Hüttwilen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	20.365 mg/l	40 mg/l	51 %	Mean · Ortsteil Hüttwilen
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Ortsteil Hüttwilen
Sulphate	21.8 mg/l	—	—	Mean · Ortsteil Hüttwilen
Sodium	3.91 mg/l	200 mg/l	2 %	Mean · Ortsteil Hüttwilen

Show all recorded parameters (15 — most recent value per parameter)

Microbiology (3)

Microbiology – Ortsteil Hüttwilen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	27.5 KBE/ml	300 1/ml	—	Mean · Ortsteil Hüttwilen
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Ortsteil Hüttwilen
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Ortsteil Hüttwilen

Chemical parameters (1)

Chemical parameters – Ortsteil Hüttwilen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	20.365 mg/l	40 mg/l	51 %	Mean · Ortsteil Hüttwilen

Metabolites (2)

Metabolites – Ortsteil Hüttwilen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0.048 µg/l	0.1 µg/l	48 %	Mean · Ortsteil Hüttwilen
Chlorothalonil metabolite R471811	0.59 µg/l	0.1 µg/l	590 % Mean above the parametric value	Mean · Ortsteil Hüttwilen

Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.

Indicator parameters (5)

Indicator parameters – Ortsteil Hüttwilen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	6.785 mg/l	—	—	Mean · Ortsteil Hüttwilen
pH	7.49	—	—	Mean · Ortsteil Hüttwilen
Sodium	3.91 mg/l	200 mg/l	2 %	Mean · Ortsteil Hüttwilen
Sulphate	21.8 mg/l	—	—	Mean · Ortsteil Hüttwilen
Temperature	12.35 °C	—	—	Mean · Ortsteil Hüttwilen

Further parameters (4)

Further parameters – Ortsteil Hüttwilen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	103.75 mg/l	—	—	Mean · Ortsteil Hüttwilen
Magnesium	29.2 mg/l	—	—	Mean · Ortsteil Hüttwilen
Potassium	0.985 mg/l	—	—	Mean · Ortsteil Hüttwilen
Total hardness	37.85 °fH	—	—	Mean · Ortsteil Hüttwilen

Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.

Source: https://trinkwasser.ch/de/versorger/1198/wasserversorgung-der-politische-gemeinde-huttwilen/1097/ortsteil-huttwilen · 2022 · 2022 · retrieved on 07/08/2026

Postcodes in this zone: 8536

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Ortsteil Nussbaumen