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Italy · Comune

Drinking water in Marentino

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
14.6 °dH
Key values Comune di Marentino
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0 µg/l 0.1 µg/l
0 %
Mean · Comune di Marentino
Nitrate 17 mg/l 50 mg/l
34 %
Mean · Comune di Marentino
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di Marentino
Escherichia coli (E. coli) 0 numero/100 ml 0/100 ml Median · Comune di Marentino
Sulphate 48 mg/l 250 mg/l
19 %
Mean · Comune di Marentino
Sodium 12 mg/l 200 mg/l
6 %
Mean · Comune di Marentino

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

Chemical parameters (24)

Chemical parameters – Comune di Marentino
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 Marentino
Antimony 0,2 µg/l 10 µg/l
2 %
Mean · Comune di Marentino
Arsenic 1 µg/l 10 µg/l
10 %
Mean · Comune di Marentino
Benzene < 0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Mean · Comune di Marentino
Benzo(a)pyrene < 0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean · Comune di Marentino
Boron < 0,02 mg/l
below limit of quantification
1.5 mg/l
< 1 % *
Mean · Comune di Marentino
Bromate < 2 µg/l
below limit of quantification
10 µg/l
< 20 % *
Mean · Comune di Marentino
Cadmium < 0,1 µg/l
below limit of quantification
5 µg/l
< 2 % *
Mean · Comune di Marentino
Chlorite 0,23 mg/l 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid Mean · Comune di Marentino
Chromium 1 µg/l 50 µg/l
2 %
Mean · Comune di Marentino
Copper < 0,001 mg/l
below limit of quantification
2 mg/l
< < 0.1 % *
Mean · Comune di Marentino
Cyanide < 1 µg/l
below limit of quantification
50 µg/l
< 2 % *
Mean · Comune di Marentino
Fluoride < 0,07 mg/l
below limit of quantification
1.5 mg/l
< 5 % *
Mean · Comune di Marentino
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di Marentino
Mercury < 0,1 µg/l
below limit of quantification
1 µg/l
< 10 % *
Mean · Comune di Marentino
Nickel 2 µg/l 20 µg/l
10 %
Mean · Comune di Marentino
Nitrate 17 mg/l 50 mg/l
34 %
Mean · Comune di Marentino
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Mean · Comune di Marentino
Pesticides — Total < 0,01 µg/l
below limit of quantification
0.5 µg/l
< 2 % *
Mean · Comune di Marentino
Polycyclic aromatic hydrocarbons < 0,0063 µg/l
below limit of quantification
0.1 µg/l
< 6 % *
Mean · Comune di Marentino
Selenium < 1 µg/l
below limit of quantification
20 µg/l
< 5 % *
Mean · Comune di Marentino
Tetrachloroethene and Trichloroethene (sum) < 0,5 µg/l
below limit of quantification
10 µg/l
< 5 % *
Mean · Comune di Marentino
Trihalomethanes — Total 4 µg/l 30 µg/l
13 %
Mean · Comune di Marentino
Vinyl chloride < 0,1 µg/l
below limit of quantification
0.5 µg/l
< 20 % *
Mean · Comune di Marentino

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

Indicator parameters (14)

Indicator parameters – Comune di Marentino
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 38 µg/l 0.2 mg/l
19 %
Mean · Comune di Marentino
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Mean · Comune di Marentino
Chloride 21 mg/l 250 mg/l
8 %
Mean · Comune di Marentino
Clostridium perfringens (including spores) 0 numero/100 ml 0/100 ml Median · Comune di Marentino
Coliform bacteria 0 numero/100 ml 0/100 ml Median · Comune di Marentino
Colony count 22 °C 0 numero/ml senza variazioni anomale Median · Comune di Marentino
Conductivity (25 °C) 435 µS/cm 2,500 µS/cm Mean · Comune di Marentino
Iron 15 µg/l 0.2 mg/l
8 %
Mean · Comune di Marentino
Manganese 2 µg/l 50 µg/l
4 %
Mean · Comune di Marentino
pH 7,9 pH 6,5–9,5 Mean · Comune di Marentino
Sodium 12 mg/l 200 mg/l
6 %
Mean · Comune di Marentino
Sulphate 48 mg/l 250 mg/l
19 %
Mean · Comune di Marentino
Total organic carbon (TOC) 569 µg/l senza variazioni anomale Mean · Comune di Marentino
Turbidity 0,3 NTU accettabile per i consumatori, senza variazioni anomale Mean · Comune di Marentino

* 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 Marentino
Parameter Value Parametric value Share of the parametric value Reference
Free chlorine 0,08 mg/l Mean · Comune di Marentino

Further parameters (6)

Further parameters – Comune di Marentino
Parameter Value Parametric value Share of the parametric value Reference
Calcium 77,8 mg/l Mean · Comune di Marentino
Dry residue 314 mg/l Mean · Comune di Marentino
Magnesium 16,1 mg/l Mean · Comune di Marentino
Potassium 2,2 mg/l Mean · Comune di Marentino
Total hardness 26 °F Mean · Comune di Marentino
Vanadium < 1 µg/l
below limit of quantification
0.14 mg/l
< 0.7 % *
Mean · Comune di Marentino

* 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=MARENTINO · 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).