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Italy · Comune

Drinking water in San Gillio

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).

Water hardness
10.1 °dH
Key values Comune di San Gillio
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0 µg/l 0.1 µg/l
0 %
Mean · Comune di San Gillio
Nitrate 8 mg/l 50 mg/l
16 %
Mean · Comune di San Gillio
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di San Gillio
Escherichia coli (E. coli) 0 numero/100 ml 0/100 ml Median · Comune di San Gillio
Sulphate < 10 mg/l
below limit of quantification
250 mg/l
< 4 % *
Mean · Comune di San Gillio
Sodium < 10 mg/l
below limit of quantification
200 mg/l
< 5 % *
Mean · Comune di San Gillio

* 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 San Gillio
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 numero/100 ml 0/100 ml Median · Comune di San Gillio
Intestinal enterococci 0 numero/100 ml 0/100 ml Median · Comune di San Gillio

Chemical parameters (24)

Chemical parameters – Comune di San Gillio
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 San Gillio
Antimony < 0,1 µg/l
below limit of quantification
10 µg/l
< 1 % *
Mean · Comune di San Gillio
Arsenic < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di San Gillio
Benzene < 0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Mean · Comune di San Gillio
Benzo(a)pyrene < 0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean · Comune di San Gillio
Boron < 0,02 mg/l
below limit of quantification
1.5 mg/l
< 1 % *
Mean · Comune di San Gillio
Bromate < 2 µg/l
below limit of quantification
10 µg/l
< 20 % *
Mean · Comune di San Gillio
Cadmium < 0,1 µg/l
below limit of quantification
5 µg/l
< 2 % *
Mean · Comune di San Gillio
Chlorite < 0,07 mg/l
below limit of quantification
0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid Mean · Comune di San Gillio
Chromium 1 µg/l 50 µg/l
2 %
Mean · Comune di San Gillio
Copper < 0,001 mg/l
below limit of quantification
2 mg/l
< < 0.1 % *
Mean · Comune di San Gillio
Cyanide < 1 µg/l
below limit of quantification
50 µg/l
< 2 % *
Mean · Comune di San Gillio
Fluoride < 0,07 mg/l
below limit of quantification
1.5 mg/l
< 5 % *
Mean · Comune di San Gillio
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di San Gillio
Mercury < 0,1 µg/l
below limit of quantification
1 µg/l
< 10 % *
Mean · Comune di San Gillio
Nickel 1 µg/l 20 µg/l
5 %
Mean · Comune di San Gillio
Nitrate 8 mg/l 50 mg/l
16 %
Mean · Comune di San Gillio
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Mean · Comune di San Gillio
Pesticides — Total < 0,01 µg/l
below limit of quantification
0.5 µg/l
< 2 % *
Mean · Comune di San Gillio
Polycyclic aromatic hydrocarbons < 0,0063 µg/l
below limit of quantification
0.1 µg/l
< 6 % *
Mean · Comune di San Gillio
Selenium < 1 µg/l
below limit of quantification
20 µg/l
< 5 % *
Mean · Comune di San Gillio
Tetrachloroethene and Trichloroethene (sum) < 0,5 µg/l
below limit of quantification
10 µg/l
< 5 % *
Mean · Comune di San Gillio
Trihalomethanes — Total 1 µg/l 30 µg/l
3 %
Mean · Comune di San Gillio
Vinyl chloride < 0,1 µg/l
below limit of quantification
0.5 µg/l
< 20 % *
Mean · Comune di San Gillio

* 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.

PFAS (1)

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

Indicator parameters (14)

Indicator parameters – Comune di San Gillio
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 San Gillio
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Mean · Comune di San Gillio
Chloride 25 mg/l 250 mg/l
10 %
Mean · Comune di San Gillio
Clostridium perfringens (including spores) 0 numero/100 ml 0/100 ml Median · Comune di San Gillio
Coliform bacteria 0 numero/100 ml 0/100 ml Median · Comune di San Gillio
Colony count 22 °C 0 numero/ml senza variazioni anomale Median · Comune di San Gillio
Conductivity (25 °C) 276 µS/cm 2,500 µS/cm Mean · Comune di San Gillio
Iron < 5 µg/l
below limit of quantification
0.2 mg/l
< 3 % *
Mean · Comune di San Gillio
Manganese 10 µg/l 50 µg/l
20 %
Mean · Comune di San Gillio
pH 7,9 pH 6,5–9,5 Mean · Comune di San Gillio
Sodium < 10 mg/l
below limit of quantification
200 mg/l
< 5 % *
Mean · Comune di San Gillio
Sulphate < 10 mg/l
below limit of quantification
250 mg/l
< 4 % *
Mean · Comune di San Gillio
Total organic carbon (TOC) 265 µg/l senza variazioni anomale Mean · Comune di San Gillio
Turbidity 0,4 NTU accettabile per i consumatori, senza variazioni anomale Mean · Comune di San Gillio

* 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.

Treatment substances (1)

Treatment substances – Comune di San Gillio
Parameter Value Parametric value Share of the parametric value Reference
Free chlorine 0,18 mg/l Mean · Comune di San Gillio

Further parameters (6)

Further parameters – Comune di San Gillio
Parameter Value Parametric value Share of the parametric value Reference
Calcium 14,7 mg/l Mean · Comune di San Gillio
Dry residue 213 mg/l Mean · Comune di San Gillio
Magnesium 33,1 mg/l Mean · Comune di San Gillio
Potassium < 1 mg/l
below limit of quantification
Mean · Comune di San Gillio
Total hardness 18 °F Mean · Comune di San Gillio
Vanadium 1 µg/l 0.14 mg/l
0.7 %
Mean · Comune di San Gillio

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=SAN GILLIO · 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).