How hard is the water in Hinwil?

WVG Girenbad publishes a total hardness of 31.1 °fH for the supply zone Girenbad bei Hinwil — that corresponds to 17.4 °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: 2025, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Hinwil?

WVG Girenbad publishes a nitrate value of 4.6 mg/l for the supply zone Girenbad bei Hinwil. The statutory parametric value is 40 mg/l; the measured value represents 12 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Hinwil?

WVG Girenbad. The values shown here come from the supply zone Girenbad bei Hinwil 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 Hinwil

One supply zone, water supplier: WVG Girenbad.

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.

Girenbad bei Hinwil

WVG Girenbad

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

Water hardness

17.4 °dH

Hardness range hard

Key values Girenbad bei Hinwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4.6 mg/l	40 mg/l	12 %	Mean · Girenbad bei Hinwil
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Girenbad bei Hinwil
Sodium	< 2 mg/l below limit of quantification	200 mg/l	< 1 % *	Mean · Girenbad bei Hinwil

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

Show all recorded parameters (10 — most recent value per parameter)

Microbiology (3)

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

Chemical parameters (1)

Chemical parameters – Girenbad bei Hinwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4.6 mg/l	40 mg/l	12 %	Mean · Girenbad bei Hinwil

Indicator parameters (3)

Indicator parameters – Girenbad bei Hinwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
pH	7.3	—	—	Mean · Girenbad bei Hinwil
Sodium	< 2 mg/l below limit of quantification	200 mg/l	< 1 % *	Mean · Girenbad bei Hinwil
Temperature	8.3 °C	—	—	Mean · Girenbad bei Hinwil

Further parameters (3)

Further parameters – Girenbad bei Hinwil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	91.2 mg/l	—	—	Mean · Girenbad bei Hinwil
Magnesium	20.3 mg/l	—	—	Mean · Girenbad bei Hinwil
Total hardness	31.1 °fH	—	—	Mean · Girenbad bei Hinwil

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/937/wvg-girenbad/3067/girenbad-bei-hinwil · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8340

Frequently asked questions about drinking water in Hinwil

How hard is the water in Hinwil?: WVG Girenbad publishes a total hardness of 31.1 °fH for the supply zone Girenbad bei Hinwil — that corresponds to 17.4 °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: 2025, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Hinwil?: WVG Girenbad publishes a nitrate value of 4.6 mg/l for the supply zone Girenbad bei Hinwil. The statutory parametric value is 40 mg/l; the measured value represents 12 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Hinwil?: WVG Girenbad. The values shown here come from the supply zone Girenbad bei Hinwil 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.