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Drinking water in Wolfau

7 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.

Alp Parnegl (Brunnen) 572827

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 14/07/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values Alp Parnegl (Brunnen) 572827
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · Alp Parnegl (Brunnen) - 572827
Show all recorded parameters (3 — most recent value per parameter)

Microbiology (3)

Microbiology – Alp Parnegl (Brunnen) 572827
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 60 KBE/ml 300 1/ml Single value · Alp Parnegl (Brunnen) - 572827
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · Alp Parnegl (Brunnen) - 572827
Intestinal enterococci nn KBE/100 ml
not detectable
0/100 ml Single value · Alp Parnegl (Brunnen) - 572827

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://scharans.ch/wp-content/uploads/2023/07/Untersuchungsbericht-Wasser-11.07.2023.pdf · 14.07.2023 · 11.07.2023 - 14.07.2023 · retrieved on 12/08/2026

Postcodes in this zone: 7412

Show 6 more supply zones

Dorfbrunnen Fraugia 572830

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 14/07/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values Dorfbrunnen Fraugia 572830
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · Dorfbrunnen Fraugia - 572830
Show all recorded parameters (3 — most recent value per parameter)

Microbiology (3)

Microbiology – Dorfbrunnen Fraugia 572830
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria nn KBE/ml
not detectable
300 1/ml Single value · Dorfbrunnen Fraugia - 572830
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · Dorfbrunnen Fraugia - 572830
Intestinal enterococci nn KBE/100 ml
not detectable
0/100 ml Single value · Dorfbrunnen Fraugia - 572830

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://scharans.ch/wp-content/uploads/2023/07/Untersuchungsbericht-Wasser-11.07.2023.pdf · 14.07.2023 · 11.07.2023 - 14.07.2023 · retrieved on 12/08/2026

Postcodes in this zone: 7412

Scharans, Dorfbrunnen

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 07/05/2024. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values Scharans, Dorfbrunnen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate <2 mg/l
below limit of quantification
40 mg/l
< 5 % *
Single value
Lead nn mg/l
not detectable
10 µg/l Single value
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value

* 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 (14 — most recent value per parameter)

Microbiology (3)

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

Chemical parameters (7)

Chemical parameters – Scharans, Dorfbrunnen
Parameter Value Parametric value Share of the parametric value Reference
Arsenic 0.0580 µg/l 10 µg/l
0.6 %
Single value
Chromium nn µg/l
not detectable
50 µg/l Single value
Fluoride <0.02 mg/l
below limit of quantification
1.5 mg/l
< 1 % *
Single value
Lead nn mg/l
not detectable
10 µg/l Single value
Nitrate <2 mg/l
below limit of quantification
40 mg/l
< 5 % *
Single value
Nitrite <0.02 mg/l
below limit of quantification
0.1 mg/l
< 20 % *
Single value
Uranium 0.943 µg/l 30 µg/l
3 %
Single value

* 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.

Indicator parameters (4)

Indicator parameters – Scharans, Dorfbrunnen
Parameter Value Parametric value Share of the parametric value Reference
Ammonium <0.01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Iron nn mg/l
not detectable
0.2 mg/l Single value
Total organic carbon (TOC) 0.246 mg/l Single value
Turbidity 0.1 NTU Single value

* 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.

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://scharans.ch/wp-content/uploads/2024/05/Untersuchungsbericht-Wasser-08_05_2024.pdf · 08.05.2024 · 29.04.2024 - 07.05.2024 · retrieved on 12/08/2026

Postcodes in this zone: 7412

Scharans, Dorfbrunnen RVL 850 CC

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 05/05/2022. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values Scharans, Dorfbrunnen RVL 850 CC
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value
Show all recorded parameters (5 — most recent value per parameter)

Microbiology (3)

Microbiology – Scharans, Dorfbrunnen RVL 850 CC
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria nn KBE/ml
not detectable
300 1/ml Single value
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value
Intestinal enterococci nn KBE/100 ml
not detectable
0/100 ml Single value

Chemical parameters (2)

Chemical parameters – Scharans, Dorfbrunnen RVL 850 CC
Parameter Value Parametric value Share of the parametric value Reference
Arsenic 0.0554 µg/l 10 µg/l
0.6 %
Single value
Uranium 1.08 µg/l 30 µg/l
4 %
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://scharans.ch/wp-content/uploads/2022/05/Untersuchungsbericht-Wasser-2.pdf · 09.05.2022 · 02.05.2022 - 05.05.2022 · retrieved on 12/08/2026

Postcodes in this zone: 7412

Trinkwasserversorgung Scharans, 7412 Scharans, Nr. 28057

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 14/07/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values Trinkwasserversorgung Scharans, 7412 Scharans, Nr. 28057
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · BS 7 - 572831
Show all recorded parameters (3 — most recent value per parameter)

Microbiology (3)

Microbiology – Trinkwasserversorgung Scharans, 7412 Scharans, Nr. 28057
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria nn KBE/ml
not detectable
300 1/ml Single value · BS 7 - 572831
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · BS 7 - 572831
Intestinal enterococci nn KBE/100 ml
not detectable
0/100 ml Single value · BS 7 - 572831

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://scharans.ch/wp-content/uploads/2023/07/Untersuchungsbericht-Wasser-11.07.2023.pdf · 14.07.2023 · 11.07.2023 - 14.07.2023 · retrieved on 12/08/2026

Postcodes in this zone: 7412

US 14 Alp Danis 572829

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 14/07/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values US 14 Alp Danis 572829
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · US 14 Alp Danis - 572829
Show all recorded parameters (3 — most recent value per parameter)

Microbiology (3)

Microbiology – US 14 Alp Danis 572829
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria nn KBE/ml
not detectable
300 1/ml Single value · US 14 Alp Danis - 572829
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · US 14 Alp Danis - 572829
Intestinal enterococci nn KBE/100 ml
not detectable
0/100 ml Single value · US 14 Alp Danis - 572829

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://scharans.ch/wp-content/uploads/2023/07/Untersuchungsbericht-Wasser-11.07.2023.pdf · 14.07.2023 · 11.07.2023 - 14.07.2023 · retrieved on 12/08/2026

Postcodes in this zone: 7412

US 14 Alp Parnegl 572828

Trinkwasserversorgung Scharans

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 14/07/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values US 14 Alp Parnegl 572828
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · US 14 Alp Parnegl - 572828
Show all recorded parameters (3 — most recent value per parameter)

Microbiology (3)

Microbiology – US 14 Alp Parnegl 572828
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria nn KBE/ml
not detectable
300 1/ml Single value · US 14 Alp Parnegl - 572828
Escherichia coli (E. coli) nn KBE/100 ml
not detectable
0/100 ml Single value · US 14 Alp Parnegl - 572828
Intestinal enterococci nn KBE/100 ml
not detectable
0/100 ml Single value · US 14 Alp Parnegl - 572828

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://scharans.ch/wp-content/uploads/2023/07/Untersuchungsbericht-Wasser-11.07.2023.pdf · 14.07.2023 · 11.07.2023 - 14.07.2023 · retrieved on 12/08/2026

Postcodes in this zone: 7412

Frequently asked questions about drinking water in Wolfau

Who supplies the drinking water in Wolfau?
Trinkwasserversorgung Scharans. The values shown here come from the supply zone Alp Parnegl (Brunnen) 572827 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.