Italy · Comune
Drinking water in Castelnuovo Nigra
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 Castelnuovo Nigra
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 Castelnuovo Nigra |
| Nitrate | < 5 mg/l below limit of quantification | 50 mg/l | < 10 % * | Mean · Comune di Castelnuovo Nigra |
| Lead | 1 µg/l | 10 µg/l | 10 % | Mean · Comune di Castelnuovo Nigra |
| Escherichia coli (E. coli) | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Castelnuovo Nigra |
| Sulphate | < 10 mg/l below limit of quantification | 250 mg/l | < 4 % * | Mean · Comune di Castelnuovo Nigra |
| Sodium | < 10 mg/l below limit of quantification | 200 mg/l | < 5 % * | Mean · Comune di Castelnuovo Nigra |
* 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 Castelnuovo Nigra |
| Intestinal enterococci | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Castelnuovo Nigra |
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 Castelnuovo Nigra |
| Antimony | < 0,1 µg/l below limit of quantification | 10 µg/l | < 1 % * | Mean · Comune di Castelnuovo Nigra |
| Arsenic | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Castelnuovo Nigra |
| Benzene | < 0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Mean · Comune di Castelnuovo Nigra |
| Benzo(a)pyrene | < 0,0025 µg/l below limit of quantification | 10 ng/l | < 25 % * | Mean · Comune di Castelnuovo Nigra |
| Boron | < 0,02 mg/l below limit of quantification | 1.5 mg/l | < 1 % * | Mean · Comune di Castelnuovo Nigra |
| Bromate | < 2 µg/l below limit of quantification | 10 µg/l | < 20 % * | Mean · Comune di Castelnuovo Nigra |
| Cadmium | < 0,1 µg/l below limit of quantification | 5 µg/l | < 2 % * | Mean · Comune di Castelnuovo Nigra |
| Chlorite | < 0,07 mg/l below limit of quantification | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Mean · Comune di Castelnuovo Nigra |
| Chromium | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Comune di Castelnuovo Nigra |
| Copper | < 0,001 mg/l below limit of quantification | 2 mg/l | < < 0.1 % * | Mean · Comune di Castelnuovo Nigra |
| Cyanide | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Mean · Comune di Castelnuovo Nigra |
| Fluoride | < 0,07 mg/l below limit of quantification | 1.5 mg/l | < 5 % * | Mean · Comune di Castelnuovo Nigra |
| Lead | 1 µg/l | 10 µg/l | 10 % | Mean · Comune di Castelnuovo Nigra |
| Mercury | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Mean · Comune di Castelnuovo Nigra |
| Nickel | < 1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Comune di Castelnuovo Nigra |
| Nitrate | < 5 mg/l below limit of quantification | 50 mg/l | < 10 % * | Mean · Comune di Castelnuovo Nigra |
| Nitrite | < 0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Mean · Comune di Castelnuovo Nigra |
| Pesticides — Total | < 0,01 µg/l below limit of quantification | 0.5 µg/l | < 2 % * | Mean · Comune di Castelnuovo Nigra |
| Polycyclic aromatic hydrocarbons | < 0,0063 µg/l below limit of quantification | 0.1 µg/l | < 6 % * | Mean · Comune di Castelnuovo Nigra |
| Selenium | < 1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Comune di Castelnuovo Nigra |
| Tetrachloroethene and Trichloroethene (sum) | < 0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Mean · Comune di Castelnuovo Nigra |
| Trihalomethanes — Total | < 0,5 µg/l below limit of quantification | 30 µg/l | < 2 % * | Mean · Comune di Castelnuovo Nigra |
| Vinyl chloride | < 0,1 µg/l below limit of quantification | 0.5 µg/l | < 20 % * | Mean · Comune di Castelnuovo Nigra |
* 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 Castelnuovo Nigra |
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 Castelnuovo Nigra |
| Ammonium | < 0,04 mg/l below limit of quantification | 0.5 mg/l | < 8 % * | Mean · Comune di Castelnuovo Nigra |
| Chloride | < 5 mg/l below limit of quantification | 250 mg/l | < 2 % * | Mean · Comune di Castelnuovo Nigra |
| Clostridium perfringens (including spores) | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Castelnuovo Nigra |
| Coliform bacteria | 0 numero/100 ml | 0/100 ml | — | Median · Comune di Castelnuovo Nigra |
| Colony count 22 °C | 0 numero/ml | senza variazioni anomale | — | Median · Comune di Castelnuovo Nigra |
| Conductivity (25 °C) | 43 µS/cm | 2,500 µS/cm | — | Mean · Comune di Castelnuovo Nigra |
| Iron | 202 µg/l | 0.2 mg/l | 101 % Mean above the parametric value | Mean · Comune di Castelnuovo Nigra |
| Manganese | 7 µg/l | 50 µg/l | 14 % | Mean · Comune di Castelnuovo Nigra |
| pH | 6,9 pH | 6,5–9,5 | — | Mean · Comune di Castelnuovo Nigra |
| Sodium | < 10 mg/l below limit of quantification | 200 mg/l | < 5 % * | Mean · Comune di Castelnuovo Nigra |
| Sulphate | < 10 mg/l below limit of quantification | 250 mg/l | < 4 % * | Mean · Comune di Castelnuovo Nigra |
| Total organic carbon (TOC) | 199 µg/l | senza variazioni anomale | — | Mean · Comune di Castelnuovo Nigra |
| Turbidity | 2,8 NTU | accettabile per i consumatori, senza variazioni anomale | — | Mean · Comune di Castelnuovo Nigra |
* 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.
Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Free chlorine | 0,12 mg/l | — | — | Mean · Comune di Castelnuovo Nigra |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | < 10 mg/l below limit of quantification | — | — | Mean · Comune di Castelnuovo Nigra |
| Dry residue | 52 mg/l | — | — | Mean · Comune di Castelnuovo Nigra |
| Magnesium | < 2 mg/l below limit of quantification | — | — | Mean · Comune di Castelnuovo Nigra |
| Potassium | < 1 mg/l below limit of quantification | — | — | Mean · Comune di Castelnuovo Nigra |
| Total hardness | < 3,3 °F below limit of quantification | — | — | Mean · Comune di Castelnuovo Nigra |
| Vanadium | < 1 µg/l below limit of quantification | 0.14 mg/l | < 0.7 % * | Mean · Comune di Castelnuovo Nigra |
* 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).