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Italy · Comune

Drinking water in Santena

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
12.9 °dH
Key values Comune di Santena
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,002 µg/l 0.1 µg/l
2 %
Mean · Comune di Santena
Nitrate 17 mg/l 50 mg/l
34 %
Mean · Comune di Santena
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di Santena
Escherichia coli (E. coli) 0 numero/100 ml 0/100 ml Median · Comune di Santena
Sulphate 40 mg/l 250 mg/l
16 %
Mean · Comune di Santena
Sodium 14 mg/l 200 mg/l
7 %
Mean · Comune di Santena

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

Chemical parameters (24)

Chemical parameters – Comune di Santena
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 Santena
Antimony < 0,1 µg/l
below limit of quantification
10 µg/l
< 1 % *
Mean · Comune di Santena
Arsenic < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di Santena
Benzene < 0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Mean · Comune di Santena
Benzo(a)pyrene < 0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean · Comune di Santena
Boron < 0,02 mg/l
below limit of quantification
1.5 mg/l
< 1 % *
Mean · Comune di Santena
Bromate < 2 µg/l
below limit of quantification
10 µg/l
< 20 % *
Mean · Comune di Santena
Cadmium < 0,1 µg/l
below limit of quantification
5 µg/l
< 2 % *
Mean · Comune di Santena
Chlorite < 0,07 mg/l
below limit of quantification
0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid Mean · Comune di Santena
Chromium 2 µg/l 50 µg/l
4 %
Mean · Comune di Santena
Copper < 0,001 mg/l
below limit of quantification
2 mg/l
< < 0.1 % *
Mean · Comune di Santena
Cyanide < 1 µg/l
below limit of quantification
50 µg/l
< 2 % *
Mean · Comune di Santena
Fluoride < 0,07 mg/l
below limit of quantification
1.5 mg/l
< 5 % *
Mean · Comune di Santena
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di Santena
Mercury < 0,1 µg/l
below limit of quantification
1 µg/l
< 10 % *
Mean · Comune di Santena
Nickel < 1 µg/l
below limit of quantification
20 µg/l
< 5 % *
Mean · Comune di Santena
Nitrate 17 mg/l 50 mg/l
34 %
Mean · Comune di Santena
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Mean · Comune di Santena
Pesticides — Total < 0,01 µg/l
below limit of quantification
0.5 µg/l
< 2 % *
Mean · Comune di Santena
Polycyclic aromatic hydrocarbons < 0,0063 µg/l
below limit of quantification
0.1 µg/l
< 6 % *
Mean · Comune di Santena
Selenium < 1 µg/l
below limit of quantification
20 µg/l
< 5 % *
Mean · Comune di Santena
Tetrachloroethene and Trichloroethene (sum) < 0,5 µg/l
below limit of quantification
10 µg/l
< 5 % *
Mean · Comune di Santena
Trihalomethanes — Total 1 µg/l 30 µg/l
3 %
Mean · Comune di Santena
Vinyl chloride < 0,1 µg/l
below limit of quantification
0.5 µg/l
< 20 % *
Mean · Comune di Santena

* 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 Santena
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,002 µg/l 0.1 µg/l
2 %
Mean · Comune di Santena

Indicator parameters (14)

Indicator parameters – Comune di Santena
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 Santena
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Mean · Comune di Santena
Chloride 15 mg/l 250 mg/l
6 %
Mean · Comune di Santena
Clostridium perfringens (including spores) 0 numero/100 ml 0/100 ml Median · Comune di Santena
Coliform bacteria 0 numero/100 ml 0/100 ml Median · Comune di Santena
Colony count 22 °C 0 numero/ml senza variazioni anomale Median · Comune di Santena
Conductivity (25 °C) 448 µS/cm 2,500 µS/cm Mean · Comune di Santena
Iron 14 µg/l 0.2 mg/l
7 %
Mean · Comune di Santena
Manganese 6 µg/l 50 µg/l
12 %
Mean · Comune di Santena
pH 7,2 pH 6,5–9,5 Mean · Comune di Santena
Sodium 14 mg/l 200 mg/l
7 %
Mean · Comune di Santena
Sulphate 40 mg/l 250 mg/l
16 %
Mean · Comune di Santena
Total organic carbon (TOC) 402 µg/l senza variazioni anomale Mean · Comune di Santena
Turbidity 0,4 NTU accettabile per i consumatori, senza variazioni anomale Mean · Comune di Santena

* 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 Santena
Parameter Value Parametric value Share of the parametric value Reference
Free chlorine 0,19 mg/l Mean · Comune di Santena

Further parameters (6)

Further parameters – Comune di Santena
Parameter Value Parametric value Share of the parametric value Reference
Calcium 70,9 mg/l Mean · Comune di Santena
Dry residue 321 mg/l Mean · Comune di Santena
Magnesium 12,5 mg/l Mean · Comune di Santena
Potassium 1,1 mg/l Mean · Comune di Santena
Total hardness 23 °F Mean · Comune di Santena
Vanadium < 1 µg/l
below limit of quantification
0.14 mg/l
< 0.7 % *
Mean · Comune di Santena

* 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.

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=SANTENA · 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).