Italy · Comune

Drinking water in Vialfrè

One supply zone, published by Società Metropolitana Acque Torino S.p.A. (SMAT). The values come from the publications of the Italian water suppliers (gestori), which D.Lgs. 18/2023 requires of them from 12 January 2026. Italian parametric values apply: trihalomethanes 30 instead of 50 µg/l, chromium 25 µg/l, uranium 30 instead of 10 µg/l; for hardness there is no maximum value, it is given in French degrees (°F).

Comune di Vialfre’

Società Metropolitana Acque Torino S.p.A. (SMAT)

Water hardness

5.6 °dH

Key values Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	0 µg/l	0.1 µg/l	0 %	Mean · Comune di Vialfre’
Nitrate	< 5 mg/l below limit of quantification	50 mg/l	< 10 % *	Mean · Comune di Vialfre’
Lead	< 1 µg/l below limit of quantification	10 µg/l	< 10 % *	Mean · Comune di Vialfre’
Escherichia coli (E. coli)	0 numero/100 ml	0/100 ml	—	Median · Comune di Vialfre’
Sulphate	23 mg/l	250 mg/l	9 %	Mean · Comune di Vialfre’
Sodium	< 10 mg/l below limit of quantification	200 mg/l	< 5 % *	Mean · Comune di Vialfre’

* 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 (48 — most recent value per parameter)

Microbiology (2)

Microbiology – Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 numero/100 ml	0/100 ml	—	Median · Comune di Vialfre’
Intestinal enterococci	0 numero/100 ml	0/100 ml	—	Median · Comune di Vialfre’

Chemical parameters (24)

Chemical parameters – Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,2-dichloroethane	< 0,5 µg/l below limit of quantification	3 µg/l	< 17 % *	Mean · Comune di Vialfre’
Antimony	0,1 µg/l	10 µg/l	1 %	Mean · Comune di Vialfre’
Arsenic	3 µg/l	10 µg/l	30 %	Mean · Comune di Vialfre’
Benzene	< 0,2 µg/l below limit of quantification	1 µg/l	< 20 % *	Mean · Comune di Vialfre’
Benzo(a)pyrene	< 0,0025 µg/l below limit of quantification	10 ng/l	< 25 % *	Mean · Comune di Vialfre’
Boron	< 0,02 mg/l below limit of quantification	1.5 mg/l	< 1 % *	Mean · Comune di Vialfre’
Bromate	< 2 µg/l below limit of quantification	10 µg/l	< 20 % *	Mean · Comune di Vialfre’
Cadmium	< 0,1 µg/l below limit of quantification	5 µg/l	< 2 % *	Mean · Comune di Vialfre’
Chlorite	< 0,07 mg/l below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Mean · Comune di Vialfre’
Chromium	< 1 µg/l below limit of quantification	50 µg/l	< 2 % *	Mean · Comune di Vialfre’
Copper	< 0,001 mg/l below limit of quantification	2 mg/l	< < 0.1 % *	Mean · Comune di Vialfre’
Cyanide	< 1 µg/l below limit of quantification	50 µg/l	< 2 % *	Mean · Comune di Vialfre’
Fluoride	0,07 mg/l	1.5 mg/l	5 %	Mean · Comune di Vialfre’
Lead	< 1 µg/l below limit of quantification	10 µg/l	< 10 % *	Mean · Comune di Vialfre’
Mercury	< 0,1 µg/l below limit of quantification	1 µg/l	< 10 % *	Mean · Comune di Vialfre’
Nickel	< 1 µg/l below limit of quantification	20 µg/l	< 5 % *	Mean · Comune di Vialfre’
Nitrate	< 5 mg/l below limit of quantification	50 mg/l	< 10 % *	Mean · Comune di Vialfre’
Nitrite	< 0,02 mg/l below limit of quantification	0.5 mg/l	< 4 % *	Mean · Comune di Vialfre’
Pesticides — Total	< 0,01 µg/l below limit of quantification	0.5 µg/l	< 2 % *	Mean · Comune di Vialfre’
Polycyclic aromatic hydrocarbons	< 0,0063 µg/l below limit of quantification	0.1 µg/l	< 6 % *	Mean · Comune di Vialfre’
Selenium	< 1 µg/l below limit of quantification	20 µg/l	< 5 % *	Mean · Comune di Vialfre’
Tetrachloroethene and Trichloroethene (sum)	< 0,5 µg/l below limit of quantification	10 µg/l	< 5 % *	Mean · Comune di Vialfre’
Trihalomethanes — Total	2 µg/l	30 µg/l	7 %	Mean · Comune di Vialfre’
Vinyl chloride	< 0,1 µg/l below limit of quantification	0.5 µg/l	< 20 % *	Mean · Comune di Vialfre’

PFAS (1)

PFAS – Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	0 µg/l	0.1 µg/l	0 %	Mean · Comune di Vialfre’

Indicator parameters (14)

Indicator parameters – Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	< 5 µg/l below limit of quantification	0.2 mg/l	< 3 % *	Mean · Comune di Vialfre’
Ammonium	< 0,04 mg/l below limit of quantification	0.5 mg/l	< 8 % *	Mean · Comune di Vialfre’
Chloride	< 5 mg/l below limit of quantification	250 mg/l	< 2 % *	Mean · Comune di Vialfre’
Clostridium perfringens (including spores)	0 numero/100 ml	0/100 ml	—	Median · Comune di Vialfre’
Coliform bacteria	0 numero/100 ml	0/100 ml	—	Median · Comune di Vialfre’
Colony count 22 °C	0 numero/ml	senza variazioni anomale	—	Median · Comune di Vialfre’
Conductivity (25 °C)	187 µS/cm	2,500 µS/cm	—	Mean · Comune di Vialfre’
Iron	< 5 µg/l below limit of quantification	0.2 mg/l	< 3 % *	Mean · Comune di Vialfre’
Manganese	< 1 µg/l below limit of quantification	50 µg/l	< 2 % *	Mean · Comune di Vialfre’
pH	8,3 pH	6,5–9,5	—	Mean · Comune di Vialfre’
Sodium	< 10 mg/l below limit of quantification	200 mg/l	< 5 % *	Mean · Comune di Vialfre’
Sulphate	23 mg/l	250 mg/l	9 %	Mean · Comune di Vialfre’
Total organic carbon (TOC)	291 µg/l	senza variazioni anomale	—	Mean · Comune di Vialfre’
Turbidity	0,3 NTU	accettabile per i consumatori, senza variazioni anomale	—	Mean · Comune di Vialfre’

Treatment substances (1)

Treatment substances – Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
Free chlorine	0,17 mg/l	—	—	Mean · Comune di Vialfre’

Further parameters (6)

Further parameters – Comune di Vialfre’
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	15,3 mg/l	—	—	Mean · Comune di Vialfre’
Dry residue	143 mg/l	—	—	Mean · Comune di Vialfre’
Magnesium	14,6 mg/l	—	—	Mean · Comune di Vialfre’
Potassium	1,1 mg/l	—	—	Mean · Comune di Vialfre’
Total hardness	10 °F	—	—	Mean · Comune di Vialfre’
Vanadium	< 1 µg/l below limit of quantification	0.14 mg/l	< 0.7 % *	Mean · Comune di Vialfre’

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.smatorino.it/monitoraggio-acque/?comune=VIALFRE’ · 2025 · 2025 · retrieved on 08/07/2026

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.

Legal basis: Art. 18 D.Lgs. 18/2023 as amended by D.Lgs. 102/2025 (transposition of EU Directive 2020/2184). The values are not official — the publication of the Gestore, to which every row links, remains authoritative. Assignment of the comune: information in the analysis document, resolved against the municipality list of ISTAT (territorial status 01.01.2026, CC BY 4.0).