Who supplies the drinking water in Postcode 3653?

Wasserversorgung Oberhofen (Einwohnergemeinde Oberhofen am Thunersee). The values shown here come from the supply zone Reservoir Allmend 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 3653 (Switzerland)

One supply zone, water supplier: Wasserversorgung Oberhofen (Einwohnergemeinde Oberhofen am Thunersee).

The values come from the SVGW platform trinkwasser.ch. Water utilities report there voluntarily; the SVGW does not verify the data. For each parameter, the minimum, maximum, average and median of one year are published; hardness in French degrees (°fH). On 20 August 2026 the SVGW objected in writing to the use of this data for maunawai.info: we do not show values from this source, but only name the parameters measured there. Analyses we obtained directly from the water supplier are shown in full.

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.

Reservoir Allmend

Wasserversorgung Oberhofen (Einwohnergemeinde Oberhofen am Thunersee)

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

Key values Reservoir Allmend
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. KBE/100ml not detectable	0/100 ml	—	Single value

Show all recorded parameters (4 — most recent value per parameter)

Microbiology (3)

Microbiology – Reservoir Allmend
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	n.n. KBE/ml not detectable	300 1/ml	—	Single value
Escherichia coli (E. coli)	n.n. KBE/100ml not detectable	0/100 ml	—	Single value
Intestinal enterococci	n.n. KBE/100ml not detectable	0/100 ml	—	Single value

Indicator parameters (1)

Indicator parameters – Reservoir Allmend
Parameter	Value	Parametric value	Share of the parametric value	Reference
Temperature	9.1 °C	—	—	Single value

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://www.oberhofen.ch/images/files/Bauen-Liegenschaften/Trinkwasser/aquatest-Trink--und-Badewasseranalytik-Pruefbericht-Chlorthalonil-2025.pdf · Uetendorf, 28. November 2025 · Probenentnahme 25.11.2025, 08:15 · retrieved on 12/08/2026

Frequent questions about postcode 3653

Who supplies the drinking water in Postcode 3653?: Wasserversorgung Oberhofen (Einwohnergemeinde Oberhofen am Thunersee). The values shown here come from the supply zone Reservoir Allmend 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.