Italy · Comune
Drinking water in Castro
One supply zone, published by Uniacque S.p.A.. 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 Castro Punto rete Fontanella Piazza Porto
Uniacque S.p.A.| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 6 mg/l | 50 mg/l | 12 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Sulphate | 222 mg/l | 250 mg/l | 89 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Sodium | 1.9 mg/l | 200 mg/l | 1 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
Show all recorded parameters (13 — most recent value per parameter)
Chemical parameters (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | 0.23 mg/l | 1.5 mg/l | 15 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Nitrate | 6 mg/l | 50 mg/l | 12 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
Indicator parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Chloride | 2 mg/l | 250 mg/l | 0.8 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Conductivity (25 °C) | 663 µS/cm | 2,500 µS/cm | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| pH | 7.6 Unita' pH | 6,5–9,5 | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Sodium | 1.9 mg/l | 200 mg/l | 1 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Sulphate | 222 mg/l | 250 mg/l | 89 % | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Free chlorine | 0.13 mg/l | — | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
Further parameters (5)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 124 mg/l | — | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Dry residue | 464 mg/l | — | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Hydrogen carbonate | 201 mg/l | — | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Magnesium | 27 mg/l | — | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
| Total hardness | 42 °F | — | — | Single value · Comune di Castro - Punto rete Fontanella - Piazza Porto |
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).