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Italy · Comune

Drinking water in San Pietro Val Lemina

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
6.2 °dH
Key values Comune di San Pietro Val Lemina
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 Pietro Val Lemina
Nitrate < 5 mg/l
below limit of quantification
50 mg/l
< 10 % *
Mean · Comune di San Pietro Val Lemina
Lead < 1 µg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Comune di San Pietro Val Lemina
Escherichia coli (E. coli) 0 numero/100 ml 0/100 ml Median · Comune di San Pietro Val Lemina
Sulphate 18 mg/l 250 mg/l
7 %
Mean · Comune di San Pietro Val Lemina
Sodium < 10 mg/l
below limit of quantification
200 mg/l
< 5 % *
Mean · Comune di San Pietro Val Lemina

* 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 Pietro Val Lemina
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 Pietro Val Lemina
Intestinal enterococci 0 numero/100 ml 0/100 ml Median · Comune di San Pietro Val Lemina

Chemical parameters (24)

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

* 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 Pietro Val Lemina
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 Pietro Val Lemina

Indicator parameters (14)

Indicator parameters – Comune di San Pietro Val Lemina
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 Pietro Val Lemina
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Mean · Comune di San Pietro Val Lemina
Chloride < 5 mg/l
below limit of quantification
250 mg/l
< 2 % *
Mean · Comune di San Pietro Val Lemina
Clostridium perfringens (including spores) 0 numero/100 ml 0/100 ml Median · Comune di San Pietro Val Lemina
Coliform bacteria 0 numero/100 ml 0/100 ml Median · Comune di San Pietro Val Lemina
Colony count 22 °C 0 numero/ml senza variazioni anomale Median · Comune di San Pietro Val Lemina
Conductivity (25 °C) 219 µS/cm 2,500 µS/cm Mean · Comune di San Pietro Val Lemina
Iron 5 µg/l 0.2 mg/l
3 %
Mean · Comune di San Pietro Val Lemina
Manganese 1 µg/l 50 µg/l
2 %
Mean · Comune di San Pietro Val Lemina
pH 7,5 pH 6,5–9,5 Mean · Comune di San Pietro Val Lemina
Sodium < 10 mg/l
below limit of quantification
200 mg/l
< 5 % *
Mean · Comune di San Pietro Val Lemina
Sulphate 18 mg/l 250 mg/l
7 %
Mean · Comune di San Pietro Val Lemina
Total organic carbon (TOC) 403 µg/l senza variazioni anomale Mean · Comune di San Pietro Val Lemina
Turbidity 0,3 NTU accettabile per i consumatori, senza variazioni anomale Mean · Comune di San Pietro Val Lemina

* 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 Pietro Val Lemina
Parameter Value Parametric value Share of the parametric value Reference
Free chlorine 0,03 mg/l Mean · Comune di San Pietro Val Lemina

Further parameters (6)

Further parameters – Comune di San Pietro Val Lemina
Parameter Value Parametric value Share of the parametric value Reference
Calcium 33,8 mg/l Mean · Comune di San Pietro Val Lemina
Dry residue 171 mg/l Mean · Comune di San Pietro Val Lemina
Magnesium 5,2 mg/l Mean · Comune di San Pietro Val Lemina
Potassium 1,0 mg/l Mean · Comune di San Pietro Val Lemina
Total hardness 11 °F Mean · Comune di San Pietro Val Lemina
Vanadium < 1 µg/l
below limit of quantification
0.14 mg/l
< 0.7 % *
Mean · Comune di San Pietro Val Lemina

* 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=SAN PIETRO VAL LEMINA · 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).