How hard is the water in Ruswil?

Korporation Dorf Ruswil publishes a total hardness of 34.2 °fH for the supply zone Ruswil — that corresponds to 19.2 °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: 2026, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Ruswil?

Korporation Dorf Ruswil publishes a nitrate value of 13 mg/l for the supply zone Ruswil. The statutory parametric value is 40 mg/l; the measured value represents 33 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.

Who supplies the drinking water in Ruswil?

Korporation Dorf Ruswil. The values shown here come from the supply zone Ruswil 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 Ruswil

One supply zone, water supplier: Korporation Dorf Ruswil.

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.

Ruswil

Korporation Dorf Ruswil

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

Water hardness

19.2 °dH

Hardness range hard

Key values Ruswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	13 mg/l	40 mg/l	33 %	Mean · Ruswil
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Ruswil
Sulphate	8.4 mg/l	—	—	Mean · Ruswil
Sodium	7.1 mg/l	200 mg/l	4 %	Mean · Ruswil

Show all recorded parameters (22 — most recent value per parameter)

Microbiology (3)

Microbiology – Ruswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	3 KBE/ml	300 1/ml	—	Mean · Ruswil
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Ruswil
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Ruswil

Chemical parameters (1)

Chemical parameters – Ruswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	13 mg/l	40 mg/l	33 %	Mean · Ruswil

PFAS (3)

PFAS – Ruswil
Parameter	Parametric value	Reference
Perfluorohexane sulfonic acid (PFHxS)	0.3 µg/l	Mean · Ruswil
Perfluorooctanesulfonic acid (PFOS)	0.3 µg/l	Mean · Ruswil
Perfluorooctanoic acid (PFOA)	0.5 µg/l	Mean · Ruswil

Metabolites (2)

Metabolites – Ruswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0 µg/l	0.1 µg/l	0 %	Mean · Ruswil
Chlorothalonil metabolite R471811	0.02 µg/l	0.1 µg/l	20 %	Mean · Ruswil

Indicator parameters (7)

Indicator parameters – Ruswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	7.8 mg/l	—	—	Mean · Ruswil
Conductivity (25 °C)	651 µS/cm	—	—	Mean · Ruswil
Oxidisability	0.9 mg KMnO4/l	—	—	Mean · Ruswil
pH	7.4	—	—	Mean · Ruswil
Sodium	7.1 mg/l	200 mg/l	4 %	Mean · Ruswil
Sulphate	8.4 mg/l	—	—	Mean · Ruswil
Turbidity	0.1 TE/F	—	—	Mean · Ruswil

Further parameters (6)

Further parameters – Ruswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	116 mg/l	—	—	Mean · Ruswil
Dissolved organic carbon (DOC)	0.7 mg/l	—	—	Mean · Ruswil
Hydrogen carbonate	397 mg/l	—	—	Mean · Ruswil
Magnesium	13 mg/l	—	—	Mean · Ruswil
Potassium	2.2 mg/l	—	—	Mean · Ruswil
Total hardness	34.2 °fH	—	—	Mean · Ruswil

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/669/korporation-dorf-ruswil/3525/ruswil · 2026 · 2026 · retrieved on 07/08/2026

Postcodes in this zone: 6017

Frequently asked questions about drinking water in Ruswil

How hard is the water in Ruswil?: Korporation Dorf Ruswil publishes a total hardness of 34.2 °fH for the supply zone Ruswil — that corresponds to 19.2 °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: 2026, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Ruswil?: Korporation Dorf Ruswil publishes a nitrate value of 13 mg/l for the supply zone Ruswil. The statutory parametric value is 40 mg/l; the measured value represents 33 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Ruswil?: Korporation Dorf Ruswil. The values shown here come from the supply zone Ruswil 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.

General questions — how current the data is, limit of quantification, parametric values, who is behind this site — are answered under Questions & answers.