Italy · Comune
Drinking water in Capri
One supply zone, published by GORI 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 Capri
GORI S.p.A.| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 20 mg/l | 50 mg/l | 40 % | Mean · Comune di Capri |
| Lead | <1,0 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Capri |
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Mean · Comune di Capri |
| Sulphate | 15 mg/l | 250 mg/l | 6 % | Mean · Comune di Capri |
| Sodium | 21 mg/l | 200 mg/l | 11 % | Mean · Comune di Capri |
* 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 (47 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100ml | 0/100 ml | — | Mean · Comune di Capri |
| Intestinal enterococci | 0 UFC/100ml | 0/100 ml | — | Mean · Comune di Capri |
Chemical parameters (21)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,50 µg/l below limit of quantification | 3 µg/l | < 17 % * | Mean · Comune di Capri |
| Antimony | <1,0 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Capri |
| Arsenic | <1,0 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Capri |
| Benzene | <0,25 µg/l below limit of quantification | 1 µg/l | < 25 % * | Mean · Comune di Capri |
| Benzo(a)pyrene | <0,003 µg/l below limit of quantification | 10 ng/l | < 30 % * | Mean · Comune di Capri |
| Boron | 0,04 mg/l | 1.5 mg/l | 3 % | Mean · Comune di Capri |
| Cadmium | <1,0 µg/l below limit of quantification | 5 µg/l | < 20 % * | Mean · Comune di Capri |
| Chlorite | 0,20 mg/l | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Mean · Comune di Capri |
| Chromium | <5,0 µg/l below limit of quantification | 25 µg/l | < 20 % * | Mean · Comune di Capri |
| Copper | <0,03 mg/l below limit of quantification | 2 mg/l | < 2 % * | Mean · Comune di Capri |
| Cyanide | <5,0 µg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Comune di Capri |
| Fluoride | 0,21 mg/l | 1.5 mg/l | 14 % | Mean · Comune di Capri |
| Lead | <1,0 µg/l below limit of quantification | 10 µg/l | < 10 % * | Mean · Comune di Capri |
| Mercury | <0,20 µg/l below limit of quantification | 1 µg/l | < 20 % * | Mean · Comune di Capri |
| Nickel | <1,0 µg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Comune di Capri |
| Nitrate | 20 mg/l | 50 mg/l | 40 % | Mean · Comune di Capri |
| Nitrite | <0,05 mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Comune di Capri |
| Polycyclic aromatic hydrocarbons | <0,025 µg/l below limit of quantification | 0.1 µg/l | < 25 % * | Mean · Comune di Capri |
| Selenium | <1,0 µg/l below limit of quantification | 20 µg/l | < 5 % * | Mean · Comune di Capri |
| Tetrachloroethene and Trichloroethene (sum) | 0,3 µg/l | 10 µg/l | 3 % | Mean · Comune di Capri |
| Trihalomethanes — Total | 2,5 µg/l | 30 µg/l | 8 % | Mean · Comune di Capri |
* 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.
Indicator parameters (16)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <25 µg/l below limit of quantification | 0.2 mg/l | < 12 % * | Mean · Comune di Capri |
| Ammonium | <0,05 mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Comune di Capri |
| Chloride | 35 mg/l | 250 mg/l | 14 % | Mean · Comune di Capri |
| Coliform bacteria | 0 MPN/100ml | 0/100 ml | — | Mean · Comune di Capri |
| Colony count 22 °C | 1 UFC/ml | senza variazioni anomale | — | Mean · Comune di Capri |
| Colour | <10 Hazen below limit of quantification | accettabile per i consumatori, senza variazioni anomale | — | Mean · Comune di Capri |
| Conductivity (25 °C) | 891 microS/cm | 2,500 µS/cm | — | Mean · Comune di Capri |
| Iron | <25 µg/l below limit of quantification | 0.2 mg/l | < 12 % * | Mean · Comune di Capri |
| Manganese | <5,0 µg/l below limit of quantification | 50 µg/l | < 10 % * | Mean · Comune di Capri |
| Odour | Nessuno odore rivelabile - | accettabile per i consumatori, senza variazioni anomale | — | Mean · Comune di Capri |
| pH | 7,3 - | 6,5–9,5 | — | Mean · Comune di Capri |
| Sodium | 21 mg/l | 200 mg/l | 11 % | Mean · Comune di Capri |
| Sulphate | 15 mg/l | 250 mg/l | 6 % | Mean · Comune di Capri |
| Taste | Accettabile - | accettabile per i consumatori, senza variazioni anomale | — | Mean · Comune di Capri |
| Total organic carbon (TOC) | <1,0 mg/l below limit of quantification | senza variazioni anomale | — | Mean · Comune di Capri |
| Turbidity | 0,5 NTU | accettabile per i consumatori, senza variazioni anomale | — | Mean · Comune di Capri |
* 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 |
|---|---|---|---|---|
| Total chlorine | 0,12 mg/l | — | — | Mean · Comune di Capri |
Further parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 647 mg/l | — | — | Mean · Comune di Capri |
| Calcium | 128 mg/l | — | — | Mean · Comune di Capri |
| Dry residue | 615 mg/l | — | — | Mean · Comune di Capri |
| Magnesium | 33 mg/l | — | — | Mean · Comune di Capri |
| Potassium | 10 mg/l | — | — | Mean · Comune di Capri |
| Total hardness | 46 °F | — | — | Mean · Comune di Capri |
| Vanadium | <5,0 µg/l below limit of quantification | 0.14 mg/l | < 4 % * | Mean · Comune di Capri |
* 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).