How hard is the water in Egolzwil?

Wasserversorgung Egolzwil publishes a total hardness of 35.2 °fH for the supply zone Wasserversorgung Egolzwil — that corresponds to 19.7 °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 Egolzwil?

Wasserversorgung Egolzwil publishes a nitrate value of 19.3 mg/l for the supply zone Wasserversorgung Egolzwil. The statutory parametric value is 40 mg/l; the measured value represents 48 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.

Who supplies the drinking water in Egolzwil?

Wasserversorgung Egolzwil. The values shown here come from the supply zone Wasserversorgung Egolzwil 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 Egolzwil

One supply zone, water supplier: Wasserversorgung Egolzwil.

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.

Wasserversorgung Egolzwil

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

Water hardness

19.7 °dH

Hardness range hard

Key values Wasserversorgung Egolzwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	19.3 mg/l	40 mg/l	48 %	Mean · Wasserversorgung Egolzwil
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Wasserversorgung Egolzwil
Sulphate	16 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Sodium	7.83 mg/l	200 mg/l	4 %	Mean · Wasserversorgung Egolzwil

Show all recorded parameters (19 — most recent value per parameter)

Microbiology (3)

Microbiology – Wasserversorgung Egolzwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	4 KBE/ml	300 1/ml	—	Mean · Wasserversorgung Egolzwil
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Wasserversorgung Egolzwil
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Wasserversorgung Egolzwil

Chemical parameters (1)

Chemical parameters – Wasserversorgung Egolzwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	19.3 mg/l	40 mg/l	48 %	Mean · Wasserversorgung Egolzwil

Metabolites (2)

Metabolites – Wasserversorgung Egolzwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0.025 µg/l	0.1 µg/l	25 %	Mean · Wasserversorgung Egolzwil
Chlorothalonil metabolite R471811	0.11 µg/l	0.1 µg/l	110 % Mean above the parametric value	Mean · Wasserversorgung Egolzwil

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 (8)

Indicator parameters – Wasserversorgung Egolzwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	12 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Conductivity (25 °C)	652.05 µS/cm	—	—	Mean · Wasserversorgung Egolzwil
Oxidisability	1 mg KMnO4/l	—	—	Mean · Wasserversorgung Egolzwil
pH	7.8	—	—	Mean · Wasserversorgung Egolzwil
Sodium	7.83 mg/l	200 mg/l	4 %	Mean · Wasserversorgung Egolzwil
Sulphate	16 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Temperature	11.8 °C	—	—	Mean · Wasserversorgung Egolzwil
Turbidity	0.1 TE/F	—	—	Mean · Wasserversorgung Egolzwil

Further parameters (5)

Further parameters – Wasserversorgung Egolzwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	119.4 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Dissolved organic carbon (DOC)	0.75 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Magnesium	13.1 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Potassium	2.05 mg/l	—	—	Mean · Wasserversorgung Egolzwil
Total hardness	35.2 °fH	—	—	Mean · Wasserversorgung Egolzwil

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/1517/wasserversorgung-egolzwil/3580/wasserversorgung-egolzwil · 2026 · 2026 · retrieved on 07/08/2026

Postcodes in this zone: 6243

Frequently asked questions about drinking water in Egolzwil

How hard is the water in Egolzwil?: Wasserversorgung Egolzwil publishes a total hardness of 35.2 °fH for the supply zone Wasserversorgung Egolzwil — that corresponds to 19.7 °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 Egolzwil?: Wasserversorgung Egolzwil publishes a nitrate value of 19.3 mg/l for the supply zone Wasserversorgung Egolzwil. The statutory parametric value is 40 mg/l; the measured value represents 48 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Egolzwil?: Wasserversorgung Egolzwil. The values shown here come from the supply zone Wasserversorgung Egolzwil 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.