Italy · Comune
Drinking water in Susa
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 Susa
Società Metropolitana Acque Torino S.p.A. (SMAT)| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 µg/l | 0.1 µg/l | 0 % | Mean · Comune di Susa |
| Nitrate | < 5 mg/l below limit of quantification | 50 mg/l | < 10 % * | Mean · Comune di Susa |
| Lead | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Susa |
| Escherichia coli (E. coli) | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Susa |
| Sulphate | 70 mg/l | 250 mg/l | 28 % | Mean · Comune di Susa |
| Sodium | < 10 mg/l below limit of quantification | 200 mg/l | < 5 % * | Mean · Comune di Susa |
* 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)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Susa |
| Intestinal enterococci | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Susa |
Chemical parameters (24)
| 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 Susa |
| Antimony | < 0,1 µg/l below limit of quantification | 10 µg/l | < 1 % * | Mean · Comune di Susa |
| Arsenic | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Susa |
| Benzene | < 0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Mean · Comune di Susa |
| Benzo(a)pyrene | < 0,0025 µg/l below limit of quantification | 10 ng/l | < 25 % * | Mean · Comune di Susa |
| Boron | < 0,02 mg/l below limit of quantification | 1.5 mg/l | < 1 % * | Mean · Comune di Susa |
| Bromate | < 2 µg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Comune di Susa |
| Cadmium | < 0,1 µg/l below limit of quantification | 5 µg/l | < 2 % * | Mean · Comune di Susa |
| Chlorite | < 0,07 mg/l below limit of quantification | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Mean · Comune di Susa |
| Chromium | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Comune di Susa |
| Copper | < 0,001 mg/l below limit of quantification | 2 mg/l | < < 0.1 % * | Mean · Comune di Susa |
| Cyanide | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Comune di Susa |
| Fluoride | < 0,07 mg/l below limit of quantification | 1.5 mg/l | < 5 % * | Mean · Comune di Susa |
| Lead | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Susa |
| Mercury | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Comune di Susa |
| Nickel | 1 µg/l | 20 µg/l | 5 % | Mean · Comune di Susa |
| Nitrate | < 5 mg/l below limit of quantification | 50 mg/l | < 10 % * | Mean · Comune di Susa |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Comune di Susa |
| Pesticides — Total | < 0,01 µg/l below limit of quantification | 0.5 µg/l | < 2 % * | Mean · Comune di Susa |
| Polycyclic aromatic hydrocarbons | < 0,0063 µg/l below limit of quantification | 0.1 µg/l | < 6 % * | Mean · Comune di Susa |
| Selenium | 1 µg/l | 20 µg/l | 5 % | Mean · Comune di Susa |
| Tetrachloroethene and Trichloroethene (sum) | < 0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Mean · Comune di Susa |
| Trihalomethanes — Total | < 0,5 µg/l below limit of quantification | 30 µg/l | < 2 % * | Mean · Comune di Susa |
| Vinyl chloride | < 0,1 µg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Comune di Susa |
* 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)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 µg/l | 0.1 µg/l | 0 % | Mean · Comune di Susa |
Indicator parameters (14)
| 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 Susa |
| Ammonium | < 0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Mean · Comune di Susa |
| Chloride | 5 mg/l | 250 mg/l | 2 % | Mean · Comune di Susa |
| Clostridium perfringens (including spores) | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Susa |
| Coliform bacteria | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Susa |
| Colony count 22 °C | 0 numero/ml | senza variazioni anomale | — | Median · Comune di Susa |
| Conductivity (25 °C) | 456 µS/cm | 2,500 µS/cm | — | Mean · Comune di Susa |
| Iron | < 5 µg/l below limit of quantification | 0.2 mg/l | < 3 % * | Mean · Comune di Susa |
| Manganese | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Comune di Susa |
| pH | 7,8 pH | 6,5–9,5 | — | Mean · Comune di Susa |
| Sodium | < 10 mg/l below limit of quantification | 200 mg/l | < 5 % * | Mean · Comune di Susa |
| Sulphate | 70 mg/l | 250 mg/l | 28 % | Mean · Comune di Susa |
| Total organic carbon (TOC) | 359 µg/l | senza variazioni anomale | — | Mean · Comune di Susa |
| Turbidity | 0,3 NTU | accettabile per i consumatori, senza variazioni anomale | — | Mean · Comune di Susa |
* 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)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Free chlorine | 0,14 mg/l | — | — | Mean · Comune di Susa |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 71,7 mg/l | — | — | Mean · Comune di Susa |
| Dry residue | 327 mg/l | — | — | Mean · Comune di Susa |
| Magnesium | 13,6 mg/l | — | — | Mean · Comune di Susa |
| Potassium | 1,0 mg/l | — | — | Mean · Comune di Susa |
| Total hardness | 23 °F | — | — | Mean · Comune di Susa |
| Vanadium | < 1 µg/l below limit of quantification | 0.14 mg/l | < 0.7 % * | Mean · Comune di Susa |
* 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.
How to read the share of the parametric value
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).