How hard is the water in Rupperswil?

Technische Betriebe Rupperswil publishes a total hardness of 31.9 °fH for the supply zone Rupperswil — that corresponds to 17.9 °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 Rupperswil?

Technische Betriebe Rupperswil publishes a nitrate value of 18.4 mg/l for the supply zone Rupperswil. The statutory parametric value is 40 mg/l; the measured value represents 46 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.

Who supplies the drinking water in Rupperswil?

Technische Betriebe Rupperswil. The values shown here come from the supply zone Rupperswil 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 Rupperswil

5 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.

Rupperswil

Technische Betriebe Rupperswil

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

Water hardness

17.9 °dH

Hardness range hard

Key values Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	18.4 mg/l	40 mg/l	46 %	Mean · Rupperswil
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Rupperswil
Sulphate	15.8 mg/l	—	—	Mean · Rupperswil
Sodium	15.6 mg/l	200 mg/l	8 %	Mean · Rupperswil

Show all recorded parameters (21 — most recent value per parameter)

Microbiology (3)

Microbiology – Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	nn not detectable Unit not stated in the document	300 1/ml	—	Mean · Rupperswil
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Rupperswil
Intestinal enterococci	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Rupperswil

Chemical parameters (2)

Chemical parameters – Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0.1 mg/l	1.5 mg/l	7 %	Mean · Rupperswil
Nitrate	18.4 mg/l	40 mg/l	46 %	Mean · Rupperswil

PFAS (3)

PFAS – Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Perfluorohexane sulfonic acid (PFHxS)	0.004 µg/l	0.3 µg/l	1 %	Mean · Rupperswil
Perfluorooctanesulfonic acid (PFOS)	0.006 µg/l	0.3 µg/l	2 %	Mean · Rupperswil
Perfluorooctanoic acid (PFOA)	0.002 µg/l	0.5 µg/l	0.4 %	Mean · Rupperswil

Metabolites (2)

Metabolites – Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0.02 µg/l	0.1 µg/l	20 %	Mean · Rupperswil
Chlorothalonil metabolite R471811	0.109 µg/l	0.1 µg/l	109 % Mean above the parametric value	Mean · Rupperswil

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 (7)

Indicator parameters – Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	21.8 mg/l	—	—	Mean · Rupperswil
Conductivity (25 °C)	709 µS/cm	—	—	Mean · Rupperswil
Iron	0.01 mg/l	0.2 mg/l	5 %	Mean · Rupperswil
pH	7.3	—	—	Mean · Rupperswil
Sodium	15.6 mg/l	200 mg/l	8 %	Mean · Rupperswil
Sulphate	15.8 mg/l	—	—	Mean · Rupperswil
Turbidity	< 0.1 TE/F below limit of quantification	—	—	Mean · Rupperswil

Further parameters (4)

Further parameters – Rupperswil
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	102 mg/l	—	—	Mean · Rupperswil
Magnesium	14 mg/l	—	—	Mean · Rupperswil
Potassium	2.9 mg/l	—	—	Mean · Rupperswil
Total hardness	31.9 °fH	—	—	Mean · Rupperswil

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/1171/technische-betriebe-rupperswil/3518/rupperswil · 2026 · 2026 · retrieved on 07/08/2026

Postcodes in this zone: 5102

Show 4 more supply zones

Dobl Würzenberg 40, VZ 3 Dobl

Salzburg AG

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

Key values Dobl Würzenberg 40, VZ 3 Dobl
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl

Show all recorded parameters (9 — most recent value per parameter)

Microbiology (2)

Microbiology – Dobl Würzenberg 40, VZ 3 Dobl
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
Intestinal enterococci	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl

Indicator parameters (7)

Indicator parameters – Dobl Würzenberg 40, VZ 3 Dobl
Parameter	Value	Parametric value	Share of the parametric value	Reference
Coliform bacteria	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
Colony count 22 °C	4 in 1 ml	100 1/ml	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
Conductivity (25 °C)	325 µS/cm	2,500 µS/cm	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
Odour	geruchlos	—	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
pH	7,8	6,5–9,5	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
Taste	geschmacklos	—	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl
Temperature	10,5 °C	—	—	Single value · Dobl Würzenberg 40, VZ 3 Dobl

Source: https://www.anthering.at/system/web/getDocument.ashx?cts=1777881705&fileid=2184856 · Probenahme 02.04.2026 · retrieved on 14/08/2026

Postcodes in this zone: 5102

Hochbehälter Anzfelden Abgang

Salzburg AG

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

Water hardness

10.3 °dH

Hardness range medium

Key values Hochbehälter Anzfelden Abgang
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Hochbehälter Anzfelden Abgang

Show all recorded parameters (15 — most recent value per parameter)

Microbiology (2)

Microbiology – Hochbehälter Anzfelden Abgang
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Hochbehälter Anzfelden Abgang
Intestinal enterococci	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Hochbehälter Anzfelden Abgang

Indicator parameters (9)

Indicator parameters – Hochbehälter Anzfelden Abgang
Parameter	Value	Parametric value	Share of the parametric value	Reference
Coliform bacteria	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Hochbehälter Anzfelden Abgang
Colony count 22 °C	1 in 1 ml	100 1/ml	—	Single value · Hochbehälter Anzfelden Abgang
Conductivity (25 °C)	328 µS/cm	2,500 µS/cm	—	Single value · Hochbehälter Anzfelden Abgang
Odour	geruchlos	—	—	Single value · Hochbehälter Anzfelden Abgang
pH	7,7	6,5–9,5	—	Single value · Hochbehälter Anzfelden Abgang
Taste	geschmacklos	—	—	Single value · Hochbehälter Anzfelden Abgang
Temperature	8,7 °C	—	—	Single value · Hochbehälter Anzfelden Abgang
Total organic carbon (TOC)	0,44 mg/l	—	—	Single value · Hochbehälter Anzfelden Abgang
Turbidity	< 0,15 FNU below limit of quantification	—	—	Single value · Hochbehälter Anzfelden Abgang

Further parameters (4)

Further parameters – Hochbehälter Anzfelden Abgang
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	3,43 mmol/l	—	—	Single value · Hochbehälter Anzfelden Abgang
Carbonate hardness	9,6 °dH	—	—	Single value · Hochbehälter Anzfelden Abgang
Spectral absorption coefficient 254 nm (SAC 254)	1,00 1/m	—	—	Single value · Hochbehälter Anzfelden Abgang
Total hardness	1,84 mmol/l	—	—	Single value · Hochbehälter Anzfelden Abgang

Source: https://www.anthering.at/system/web/getDocument.ashx?cts=1777881705&fileid=2184856 · Probenahme 02.04.2026 · retrieved on 14/08/2026

Postcodes in this zone: 5102

Kapellenweg 11, Fam. Humer, VZ 1 Acharting

Salzburg AG

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

Key values Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting

Show all recorded parameters (9 — most recent value per parameter)

Microbiology (2)

Microbiology – Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Intestinal enterococci	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting

Indicator parameters (7)

Indicator parameters – Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Parameter	Value	Parametric value	Share of the parametric value	Reference
Coliform bacteria	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Colony count 22 °C	0 in 1 ml	100 1/ml	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Conductivity (25 °C)	325 µS/cm	2,500 µS/cm	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Odour	geruchlos	—	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
pH	7,8	6,5–9,5	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Taste	geschmacklos	—	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting
Temperature	10,1 °C	—	—	Single value · Kapellenweg 11, Fam. Humer, VZ 1 Acharting

Source: https://www.anthering.at/system/web/getDocument.ashx?cts=1777881705&fileid=2184856 · Probenahme 02.04.2026 · retrieved on 14/08/2026

Postcodes in this zone: 5102

Wurmassing 12, VZ 2 Würzenb.-Schönb

Salzburg AG

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

Key values Wurmassing 12, VZ 2 Würzenb.-Schönb
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.

Show all recorded parameters (9 — most recent value per parameter)

Microbiology (2)

Microbiology – Wurmassing 12, VZ 2 Würzenb.-Schönb
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
Intestinal enterococci	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.

Indicator parameters (7)

Indicator parameters – Wurmassing 12, VZ 2 Würzenb.-Schönb
Parameter	Value	Parametric value	Share of the parametric value	Reference
Coliform bacteria	n.n. in 100 ml not detectable	0/100 ml	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
Colony count 22 °C	0 in 1 ml	100 1/ml	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
Conductivity (25 °C)	324 µS/cm	2,500 µS/cm	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
Odour	geruchlos	—	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
pH	7,8	6,5–9,5	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
Taste	geschmacklos	—	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.
Temperature	8,8 °C	—	—	Single value · Wurmassing 12, VZ 2 Würzenb.-Schönb.

Source: https://www.anthering.at/system/web/getDocument.ashx?cts=1777881705&fileid=2184856 · Probenahme 02.04.2026 · retrieved on 14/08/2026

Postcodes in this zone: 5102

Frequently asked questions about drinking water in Rupperswil

How hard is the water in Rupperswil?: Technische Betriebe Rupperswil publishes a total hardness of 31.9 °fH for the supply zone Rupperswil — that corresponds to 17.9 °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 Rupperswil?: Technische Betriebe Rupperswil publishes a nitrate value of 18.4 mg/l for the supply zone Rupperswil. The statutory parametric value is 40 mg/l; the measured value represents 46 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Rupperswil?: Technische Betriebe Rupperswil. The values shown here come from the supply zone Rupperswil 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.