How hard is the water in Mieming?

Gemeindewerke Arth publishes a total hardness of 26.1 °fH for the supply zone Goldau Oberarth Arth — that corresponds to 14.6 °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 Mieming?

Gemeindewerke Arth publishes a nitrate value of 0 mg/l for the supply zone Goldau Oberarth Arth. The statutory parametric value is 40 mg/l; the measured value represents 0 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Mieming?

Gemeindewerke Arth. The values shown here come from the supply zone Goldau Oberarth Arth 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 Mieming

One supply zone, water supplier: Gemeindewerke Arth.

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.

Goldau Oberarth Arth

Gemeindewerke Arth

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

Water hardness

14.6 °dH

Hardness range hard

Key values Goldau Oberarth Arth
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0 mg/l	40 mg/l	0 %	Mean · Goldau Oberarth Arth
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median 0 · Goldau Oberarth Arth
Sulphate	0 mg/l	—	—	Mean · Goldau Oberarth Arth

Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

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

Chemical parameters (1)

Chemical parameters – Goldau Oberarth Arth
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0 mg/l	40 mg/l	0 %	Mean · Goldau Oberarth Arth

Metabolites (2)

Metabolites – Goldau Oberarth Arth
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0 µg/l	0.1 µg/l	0 %	Mean · Goldau Oberarth Arth
Chlorothalonil metabolite R471811	0 µg/l	0.1 µg/l	0 %	Mean · Goldau Oberarth Arth

Indicator parameters (6)

Indicator parameters – Goldau Oberarth Arth
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0 mg/l	—	—	Mean · Goldau Oberarth Arth
Conductivity (25 °C)	0 µS/cm	—	—	Mean · Goldau Oberarth Arth
pH	0	—	—	Mean · Goldau Oberarth Arth
Sulphate	0 mg/l	—	—	Mean · Goldau Oberarth Arth
Temperature	0 °C	—	—	Mean · Goldau Oberarth Arth
Turbidity	0 TE/F	—	—	Mean · Goldau Oberarth Arth

Further parameters (4)

Further parameters – Goldau Oberarth Arth
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	0 mg/l	—	—	Mean · Goldau Oberarth Arth
Magnesium	0 mg/l	—	—	Mean · Goldau Oberarth Arth
Spectral absorption coefficient 254 nm (SAC 254)	0 1/m	—	—	Mean · Goldau Oberarth Arth
Total hardness	26.1 °fH	—	—	Mean · Goldau Oberarth Arth

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/841/gemeindewerke-arth/3454/goldau-oberarth-arth · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 6414

Frequently asked questions about drinking water in Mieming

How hard is the water in Mieming?: Gemeindewerke Arth publishes a total hardness of 26.1 °fH for the supply zone Goldau Oberarth Arth — that corresponds to 14.6 °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 Mieming?: Gemeindewerke Arth publishes a nitrate value of 0 mg/l for the supply zone Goldau Oberarth Arth. The statutory parametric value is 40 mg/l; the measured value represents 0 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Mieming?: Gemeindewerke Arth. The values shown here come from the supply zone Goldau Oberarth Arth 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.