How hard is the water in Postcode 6777?

Comune di Quinto publishes a total hardness of 0.32 mmol/l for the supply zone Altanca, Cresta e Ronco — that corresponds to 1.8 °dH. Hardness indicates how much calcium and magnesium are dissolved in the water. It is not a quality assessment: there is no parametric value for hardness. Basis: Publication by the water supplier, retrieved on 12/08/2026.

How much nitrate is in the drinking water in Postcode 6777?

Comune di Quinto publishes a nitrate value of 0.9 mg/l for the supply zone Altanca, Cresta e Ronco. The statutory parametric value is 40 mg/l; the measured value represents 2 % of the parametric value. Basis: Publication by the water supplier, retrieved on 12/08/2026.

Who supplies the drinking water in Postcode 6777?

Comune di Quinto. The values shown here come from the supply zone Altanca, Cresta e Ronco 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 6777 (Switzerland)

The drinking water in Postcode 6777 has a total hardness of 1.8 °dH. Nitrate reaches 0.9 mg/l, the statutory parametric value is 40 mg/l. Measured in supply zone Altanca, Cresta e Ronco of Comune di Quinto, retrieved on 12/08/2026.

For this postcode Comune di Quinto publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 9 underneath.

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.

Altanca, Cresta e Ronco

Comune di Quinto

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

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness

1.8 °dH

Key values Altanca, Cresta e Ronco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0.9 mg/l	40 mg/l	2 %	Single value · Altanca, Cresta e Ronco
Sulphate	7.5 mg/l	—	—	Single value · Altanca, Cresta e Ronco
Sodium	1.1 mg/l	200 mg/l	0.5 %	Single value · Altanca, Cresta e Ronco

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Altanca, Cresta e Ronco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0.9 mg/l	40 mg/l	2 %	Single value · Altanca, Cresta e Ronco

Indicator parameters (3)

Indicator parameters – Altanca, Cresta e Ronco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.2 mg/l	—	—	Single value · Altanca, Cresta e Ronco
Sodium	1.1 mg/l	200 mg/l	0.5 %	Single value · Altanca, Cresta e Ronco
Sulphate	7.5 mg/l	—	—	Single value · Altanca, Cresta e Ronco

Further parameters (4)

Further parameters – Altanca, Cresta e Ronco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	10.0 mg/l	—	—	Single value · Altanca, Cresta e Ronco
Magnesium	1.7 mg/l	—	—	Single value · Altanca, Cresta e Ronco
Potassium	1.6 mg/l	—	—	Single value · Altanca, Cresta e Ronco
Total hardness	0.32 mmol/l	—	—	Single value · Altanca, Cresta e Ronco

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.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Show 9 more supply zones in this postcode

Ambrì

Comune di Quinto

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

Water hardness

1.4 °dH

Key values Ambrì
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Ambrì
Sulphate	7.2 mg/l	—	—	Single value · Ambrì
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Ambrì

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Ambrì
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Ambrì

Indicator parameters (3)

Indicator parameters – Ambrì
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.2 mg/l	—	—	Single value · Ambrì
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Ambrì
Sulphate	7.2 mg/l	—	—	Single value · Ambrì

Further parameters (4)

Further parameters – Ambrì
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	8.4 mg/l	—	—	Single value · Ambrì
Magnesium	1.1 mg/l	—	—	Single value · Ambrì
Potassium	2.0 mg/l	—	—	Single value · Ambrì
Total hardness	0.25 mmol/l	—	—	Single value · Ambrì

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Catto e San Martino

Comune di Quinto

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

Water hardness

1 °dH

Key values Catto e San Martino
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.2 mg/l	40 mg/l	3 %	Single value · Catto e San Martino
Sulphate	11.4 mg/l	—	—	Single value · Catto e San Martino
Sodium	1.1 mg/l	200 mg/l	0.5 %	Single value · Catto e San Martino

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Catto e San Martino
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.2 mg/l	40 mg/l	3 %	Single value · Catto e San Martino

Indicator parameters (3)

Indicator parameters – Catto e San Martino
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.2 mg/l	—	—	Single value · Catto e San Martino
Sodium	1.1 mg/l	200 mg/l	0.5 %	Single value · Catto e San Martino
Sulphate	11.4 mg/l	—	—	Single value · Catto e San Martino

Further parameters (4)

Further parameters – Catto e San Martino
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	5.7 mg/l	—	—	Single value · Catto e San Martino
Magnesium	0.8 mg/l	—	—	Single value · Catto e San Martino
Potassium	1.9 mg/l	—	—	Single value · Catto e San Martino
Total hardness	0.18 mmol/l	—	—	Single value · Catto e San Martino

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Deggio

Comune di Quinto

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

Water hardness

1.5 °dH

Key values Deggio
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Deggio
Sulphate	7.6 mg/l	—	—	Single value · Deggio
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Deggio

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Deggio
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Deggio

Indicator parameters (3)

Indicator parameters – Deggio
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.2 mg/l	—	—	Single value · Deggio
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Deggio
Sulphate	7.6 mg/l	—	—	Single value · Deggio

Further parameters (4)

Further parameters – Deggio
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	9.0 mg/l	—	—	Single value · Deggio
Magnesium	1.1 mg/l	—	—	Single value · Deggio
Potassium	2.0 mg/l	—	—	Single value · Deggio
Total hardness	0.27 mmol/l	—	—	Single value · Deggio

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Giof

Comune di Quinto

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

Water hardness

4.1 °dH

Key values Giof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Giof
Sulphate	13.6 mg/l	—	—	Single value · Giof
Sodium	0.7 mg/l	200 mg/l	0.4 %	Single value · Giof

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Giof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Giof

Indicator parameters (3)

Indicator parameters – Giof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.1 mg/l	—	—	Single value · Giof
Sodium	0.7 mg/l	200 mg/l	0.4 %	Single value · Giof
Sulphate	13.6 mg/l	—	—	Single value · Giof

Further parameters (4)

Further parameters – Giof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	24.4 mg/l	—	—	Single value · Giof
Magnesium	2.9 mg/l	—	—	Single value · Giof
Potassium	1.1 mg/l	—	—	Single value · Giof
Total hardness	0.73 mmol/l	—	—	Single value · Giof

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Lurengo

Comune di Quinto

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

Water hardness

1.3 °dH

Key values Lurengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.8 mg/l	40 mg/l	5 %	Single value · Lurengo
Sulphate	11.8 mg/l	—	—	Single value · Lurengo
Sodium	1.0 mg/l	200 mg/l	0.5 %	Single value · Lurengo

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Lurengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.8 mg/l	40 mg/l	5 %	Single value · Lurengo

Indicator parameters (3)

Indicator parameters – Lurengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.1 mg/l	—	—	Single value · Lurengo
Sodium	1.0 mg/l	200 mg/l	0.5 %	Single value · Lurengo
Sulphate	11.8 mg/l	—	—	Single value · Lurengo

Further parameters (4)

Further parameters – Lurengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	8.1 mg/l	—	—	Single value · Lurengo
Magnesium	0.9 mg/l	—	—	Single value · Lurengo
Potassium	2.0 mg/l	—	—	Single value · Lurengo
Total hardness	0.24 mmol/l	—	—	Single value · Lurengo

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Piotta

Comune di Quinto

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

Water hardness

4.8 °dH

Key values Piotta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Piotta
Sulphate	21.6 mg/l	—	—	Single value · Piotta
Sodium	0.8 mg/l	200 mg/l	0.4 %	Single value · Piotta

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Piotta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Piotta

Indicator parameters (3)

Indicator parameters – Piotta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.1 mg/l	—	—	Single value · Piotta
Sodium	0.8 mg/l	200 mg/l	0.4 %	Single value · Piotta
Sulphate	21.6 mg/l	—	—	Single value · Piotta

Further parameters (4)

Further parameters – Piotta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	29.2 mg/l	—	—	Single value · Piotta
Magnesium	3.1 mg/l	—	—	Single value · Piotta
Potassium	1.3 mg/l	—	—	Single value · Piotta
Total hardness	0.85 mmol/l	—	—	Single value · Piotta

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Quinto e Morenca

Comune di Quinto

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

Water hardness

1.5 °dH

Key values Quinto e Morenca
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Quinto e Morenca
Sulphate	7.2 mg/l	—	—	Single value · Quinto e Morenca
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Quinto e Morenca

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Quinto e Morenca
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.1 mg/l	40 mg/l	3 %	Single value · Quinto e Morenca

Indicator parameters (3)

Indicator parameters – Quinto e Morenca
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.2 mg/l	—	—	Single value · Quinto e Morenca
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Quinto e Morenca
Sulphate	7.2 mg/l	—	—	Single value · Quinto e Morenca

Further parameters (4)

Further parameters – Quinto e Morenca
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	8.6 mg/l	—	—	Single value · Quinto e Morenca
Magnesium	1.1 mg/l	—	—	Single value · Quinto e Morenca
Potassium	1.9 mg/l	—	—	Single value · Quinto e Morenca
Total hardness	0.26 mmol/l	—	—	Single value · Quinto e Morenca

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Riva, Altanca e Scruengo

Comune di Quinto

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

Water hardness

3.3 °dH

Key values Riva, Altanca e Scruengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.5 mg/l	40 mg/l	4 %	Single value · Riva, Altanca e Scruengo
Sulphate	19.5 mg/l	—	—	Single value · Riva, Altanca e Scruengo
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Riva, Altanca e Scruengo

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Riva, Altanca e Scruengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.5 mg/l	40 mg/l	4 %	Single value · Riva, Altanca e Scruengo

Indicator parameters (3)

Indicator parameters – Riva, Altanca e Scruengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.3 mg/l	—	—	Single value · Riva, Altanca e Scruengo
Sodium	1.4 mg/l	200 mg/l	0.7 %	Single value · Riva, Altanca e Scruengo
Sulphate	19.5 mg/l	—	—	Single value · Riva, Altanca e Scruengo

Further parameters (4)

Further parameters – Riva, Altanca e Scruengo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	20.2 mg/l	—	—	Single value · Riva, Altanca e Scruengo
Magnesium	2.2 mg/l	—	—	Single value · Riva, Altanca e Scruengo
Potassium	2.6 mg/l	—	—	Single value · Riva, Altanca e Scruengo
Total hardness	0.59 mmol/l	—	—	Single value · Riva, Altanca e Scruengo

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Varenzo e Serta

Comune di Quinto

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

Water hardness

1.8 °dH

Key values Varenzo e Serta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.8 mg/l	40 mg/l	5 %	Single value · Varenzo e Serta
Sulphate	14.7 mg/l	—	—	Single value · Varenzo e Serta
Sodium	1.9 mg/l	200 mg/l	1 %	Single value · Varenzo e Serta

Show all recorded parameters (8 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Varenzo e Serta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1.8 mg/l	40 mg/l	5 %	Single value · Varenzo e Serta

Indicator parameters (3)

Indicator parameters – Varenzo e Serta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	0.4 mg/l	—	—	Single value · Varenzo e Serta
Sodium	1.9 mg/l	200 mg/l	1 %	Single value · Varenzo e Serta
Sulphate	14.7 mg/l	—	—	Single value · Varenzo e Serta

Further parameters (4)

Further parameters – Varenzo e Serta
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	9.9 mg/l	—	—	Single value · Varenzo e Serta
Magnesium	1.7 mg/l	—	—	Single value · Varenzo e Serta
Potassium	2.5 mg/l	—	—	Single value · Varenzo e Serta
Total hardness	0.32 mmol/l	—	—	Single value · Varenzo e Serta

Source: https://www.tiquinto.ch/acqua-potabile/mappa-qualita-sorgenti-idriche/ · retrieved on 12/08/2026

Frequent questions about postcode 6777

How hard is the water in Postcode 6777?: Comune di Quinto publishes a total hardness of 0.32 mmol/l for the supply zone Altanca, Cresta e Ronco — that corresponds to 1.8 °dH. Hardness indicates how much calcium and magnesium are dissolved in the water. It is not a quality assessment: there is no parametric value for hardness. Basis: Publication by the water supplier, retrieved on 12/08/2026.
How much nitrate is in the drinking water in Postcode 6777?: Comune di Quinto publishes a nitrate value of 0.9 mg/l for the supply zone Altanca, Cresta e Ronco. The statutory parametric value is 40 mg/l; the measured value represents 2 % of the parametric value. Basis: Publication by the water supplier, retrieved on 12/08/2026.
Who supplies the drinking water in Postcode 6777?: Comune di Quinto. The values shown here come from the supply zone Altanca, Cresta e Ronco 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.