Italy · Comune
Drinking water in San Pier d'Isonzo
One supply zone, published by IrisAcqua S.r.l.. 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).
San Pier d'Isonzo
IrisAcqua S.r.l.These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2018. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 2 mg/L | 50 mg/l | 4 % | Single value · San Pier d'Isonzo |
| Sulphate | 8,0 mg/L | 250 mg/l | 3 % | Single value · San Pier d'Isonzo |
| Sodium | 9,0 mg/L | 200 mg/l | 5 % | Single value · San Pier d'Isonzo |
Show all recorded parameters (18 — most recent value per parameter)
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Arsenic | 1 µg/L | 10 µg/l | 10 % | Single value · San Pier d'Isonzo |
| Fluoride | 0,10 mg/L | 1.5 mg/l | 7 % | Single value · San Pier d'Isonzo |
| Nitrate | 2 mg/L | 50 mg/l | 4 % | Single value · San Pier d'Isonzo |
| Nitrite | 0,02 mg/L | 0.5 mg/l | 4 % | Single value · San Pier d'Isonzo |
Indicator parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | 0,02 mg/L | 0.5 mg/l | 4 % | Single value · San Pier d'Isonzo |
| Chloride | 14,0 mg/L | 250 mg/l | 6 % | Single value · San Pier d'Isonzo |
| Conductivity (25 °C) | 340 µS/cm a 20°C | 2,500 µS/cm | — | Single value · San Pier d'Isonzo |
| Manganese | 5 µg/L | 50 µg/l | 10 % | Single value · San Pier d'Isonzo |
| pH | 7,7 unità pH a 20°C | 6,5–9,5 | — | Single value · San Pier d'Isonzo |
| Sodium | 9,0 mg/L | 200 mg/l | 5 % | Single value · San Pier d'Isonzo |
| Sulphate | 8,0 mg/L | 250 mg/l | 3 % | Single value · San Pier d'Isonzo |
Treatment substances (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Total chlorine | <0,02 mg/l Cl2 below limit of quantification | — | — | Single value · San Pier d'Isonzo |
Further parameters (6)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 49,0 mg/L | — | — | Single value · San Pier d'Isonzo |
| Dry residue | 240 mg/L | — | — | Single value · San Pier d'Isonzo |
| Hydrogen carbonate | 201 mg/L | — | — | Single value · San Pier d'Isonzo |
| Magnesium | 12 mg/L | — | — | Single value · San Pier d'Isonzo |
| Potassium | 1 mg/L | — | — | Single value · San Pier d'Isonzo |
| Total hardness | 17 °F | — | — | Single value · San Pier d'Isonzo |
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).