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Drinking water in Unterschächen

4 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.

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

Key values Dorfbrunnen
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Dorfbrunnen
Show all recorded parameters (4 — most recent value per parameter)

Microbiology (3)

Microbiology – Dorfbrunnen
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 3 KBE/mL 300 1/ml — Single value · Dorfbrunnen
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Dorfbrunnen
Intestinal enterococci nn KBE/100mL
not detectable
0/100 ml — Single value · Dorfbrunnen

Indicator parameters (1)

Indicator parameters – Dorfbrunnen
Parameter Value Parametric value Share of the parametric value Reference
Temperature 15.7 °C — — Single value · Dorfbrunnen

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.unterschaechen.ch/files/bilder/Prüfbericht_A25-2838_250911.pdf · 11. September 2025 · Untersuchung von 04. September 2025 bis 10. September 2025 · retrieved on 12/08/2026

Postcodes in this zone: 6465

Show 3 more supply zones

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

Key values Gemeindehaus WC
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Gemeindehaus WC
Show all recorded parameters (4 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeindehaus WC
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 12 KBE/mL 300 1/ml — Single value · Gemeindehaus WC
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Gemeindehaus WC
Intestinal enterococci nn KBE/100mL
not detectable
0/100 ml — Single value · Gemeindehaus WC

Indicator parameters (1)

Indicator parameters – Gemeindehaus WC
Parameter Value Parametric value Share of the parametric value Reference
Temperature 14.9 °C — — Single value · Gemeindehaus WC

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.unterschaechen.ch/files/bilder/Prüfbericht_A25-2838_250911.pdf · 11. September 2025 · Untersuchung von 04. September 2025 bis 10. September 2025 · retrieved on 12/08/2026

Postcodes in this zone: 6465

Reservoir Bielen nach UV

Wasserversorgung Unterschächen

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

Key values Reservoir Bielen nach UV
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Reservoir Bielen nach UV
Show all recorded parameters (4 — most recent value per parameter)

Microbiology (3)

Microbiology – Reservoir Bielen nach UV
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 9 KBE/mL 300 1/ml — Single value · Reservoir Bielen nach UV
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Reservoir Bielen nach UV
Intestinal enterococci nn KBE/100mL
not detectable
0/100 ml — Single value · Reservoir Bielen nach UV

Indicator parameters (1)

Indicator parameters – Reservoir Bielen nach UV
Parameter Value Parametric value Share of the parametric value Reference
Temperature 14.5 °C — — Single value · Reservoir Bielen nach UV

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.unterschaechen.ch/files/bilder/Prüfbericht_A25-2838_250911.pdf · 11. September 2025 · Untersuchung von 04. September 2025 bis 10. September 2025 · retrieved on 12/08/2026

Postcodes in this zone: 6465

Reservoir Mettenen nach UV

Wasserversorgung Unterschächen

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

Key values Reservoir Mettenen nach UV
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Reservoir Mettenen nach UV
Show all recorded parameters (4 — most recent value per parameter)

Microbiology (3)

Microbiology – Reservoir Mettenen nach UV
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 5 KBE/mL 300 1/ml — Single value · Reservoir Mettenen nach UV
Escherichia coli (E. coli) nn KBE/100mL
not detectable
0/100 ml — Single value · Reservoir Mettenen nach UV
Intestinal enterococci nn KBE/100mL
not detectable
0/100 ml — Single value · Reservoir Mettenen nach UV

Indicator parameters (1)

Indicator parameters – Reservoir Mettenen nach UV
Parameter Value Parametric value Share of the parametric value Reference
Temperature 5.1 °C — — Single value · Reservoir Mettenen nach UV

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.unterschaechen.ch/files/bilder/Prüfbericht_A25-2838_250911.pdf · 11. September 2025 · Untersuchung von 04. September 2025 bis 10. September 2025 · retrieved on 12/08/2026

Postcodes in this zone: 6465

Frequently asked questions about drinking water in Unterschächen

Who supplies the drinking water in Unterschächen?
Wasserversorgung Unterschächen. The values shown here come from the supply zone Dorfbrunnen 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.