Italy · Comune
Drinking water in Ostra
One supply zone, published by VIVA Servizi 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 Ostra
VIVA Servizi S.p.A.| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | < 0,01 µg/l below limit of quantification | 0.1 µg/l | < 10 % * | Single value · Comune di Ostra |
| Nitrate | 5,5 mg/l | 50 mg/l | 11 % | Single value · Comune di Ostra |
| Lead | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Single value · Comune di Ostra |
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · Comune di Ostra |
| Sulphate | 88,2 mg/l | 250 mg/l | 35 % | Single value · Comune di Ostra |
| Sodium | 27,1 mg/l | 200 mg/l | 14 % | Single value · Comune di Ostra |
* 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 (52 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 MPN/100 ml | 0/100 ml | — | Single value · Comune di Ostra |
| Intestinal enterococci | 0 MPN/100 ml | 0/100 ml | — | Single value · Comune di Ostra |
Chemical parameters (29)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,3 µg/l below limit of quantification | 3 µg/l | < 10 % * | Single value · Comune di Ostra |
| Acrylamide | < 0,01 µg/l below limit of quantification | 0.1 µg/l | < 10 % * | Single value · Comune di Ostra |
| Antimony | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Single value · Comune di Ostra |
| Arsenic | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Single value · Comune di Ostra |
| Benzene | < 0,2 µg/l below limit of quantification | 1 µg/l | < 20 % * | Single value · Comune di Ostra |
| Benzo(a)pyrene | < 0,003 µg/l below limit of quantification | 10 ng/l | < 30 % * | Single value · Comune di Ostra |
| Bisphenol A | < 0,25 µg/l below limit of quantification | 2.5 µg/l | < 10 % * | Single value · Comune di Ostra |
| Boron | 0,15 mg/l | 1.5 mg/l | 10 % | Single value · Comune di Ostra |
| Bromate | < 3 µg/l below limit of quantification | 10 µg/l | < 30 % * | Single value · Comune di Ostra |
| Cadmium | < 1 µg/l below limit of quantification | 5 µg/l | < 20 % * | Single value · Comune di Ostra |
| Chlorate | < 50 µg/l below limit of quantification | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Single value · Comune di Ostra |
| Chlorite | < 50 µg/l below limit of quantification | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Single value · Comune di Ostra |
| Chromium | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Single value · Comune di Ostra |
| Copper | 0,0011 mg/l | 2 mg/l | < 0.1 % | Single value · Comune di Ostra |
| Cyanide | < 10 µg/l below limit of quantification | 50 µg/l | < 20 % * | Single value · Comune di Ostra |
| Epichlorohydrin | < 0,05 µg/l below limit of quantification | 0.1 µg/l | < 50 % * | Single value · Comune di Ostra |
| Fluoride | 0,441 mg/l | 1.5 mg/l | 29 % | Single value · Comune di Ostra |
| Lead | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Single value · Comune di Ostra |
| Mercury | < 0,1 µg/l below limit of quantification | 1 µg/l | < 10 % * | Single value · Comune di Ostra |
| Nickel | < 1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Single value · Comune di Ostra |
| Nitrate | 5,5 mg/l | 50 mg/l | 11 % | Single value · Comune di Ostra |
| Nitrite | < 0,1 mg/l below limit of quantification | 0.5 mg/l | < 20 % * | Single value · Comune di Ostra |
| Pesticides — Total | < 0,005 µg/l below limit of quantification | 0.5 µg/l | < 1 % * | Single value · Comune di Ostra |
| Polycyclic aromatic hydrocarbons | < 0,01 µg/l below limit of quantification | 0.1 µg/l | < 10 % * | Single value · Comune di Ostra |
| Selenium | < 1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Single value · Comune di Ostra |
| Tetrachloroethene and Trichloroethene (sum) | < 0,5 µg/l below limit of quantification | 10 µg/l | < 5 % * | Single value · Comune di Ostra |
| Trihalomethanes — Total | < 0,5 µg/l below limit of quantification | 30 µg/l | < 2 % * | Single value · Comune di Ostra |
| Uranium | < 3 µg/l below limit of quantification | 30 µg/l | < 10 % * | Single value · Comune di Ostra |
| Vinyl chloride | < 0,25 µg/l below limit of quantification | 0.5 µg/l | < 50 % * | Single value · Comune di Ostra |
* 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 | < 0,01 µg/l below limit of quantification | 0.1 µg/l | < 10 % * | Single value · Comune di Ostra |
* 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 | < 50 µg/l below limit of quantification | 0.2 mg/l | < 25 % * | Single value · Comune di Ostra |
| Ammonium | < 0,1 mg/l below limit of quantification | 0.5 mg/l | < 20 % * | Single value · Comune di Ostra |
| Chloride | 42,3 mg/l | 250 mg/l | 17 % | Single value · Comune di Ostra |
| Clostridium perfringens (including spores) | 0 UFC/100 ml | 0/100 ml | — | Single value · Comune di Ostra |
| Coliform bacteria | 0 MPN/100 ml | 0/100 ml | — | Single value · Comune di Ostra |
| Colony count 22 °C | 0 N/1 ml | senza variazioni anomale | — | Single value · Comune di Ostra |
| Colour | < 5 mg/l below limit of quantification | accettabile per i consumatori, senza variazioni anomale | — | Single value · Comune di Ostra |
| Conductivity (25 °C) | 615,9 µs/cm | 2,500 µS/cm | — | Single value · Comune di Ostra |
| Iron | < 50 µg/l below limit of quantification | 0.2 mg/l | < 25 % * | Single value · Comune di Ostra |
| Manganese | < 1 µg/l below limit of quantification | 50 µg/l | < 2 % * | Single value · Comune di Ostra |
| Oxidisability | 0,5 mg O2/l | 5 mg/l O2 | — | Single value · Comune di Ostra |
| pH | 7,7 Unità pH | 6,5–9,5 | — | Single value · Comune di Ostra |
| Sodium | 27,1 mg/l | 200 mg/l | 14 % | Single value · Comune di Ostra |
| Sulphate | 88,2 mg/l | 250 mg/l | 35 % | Single value · Comune di Ostra |
| Total organic carbon (TOC) | 348 µg C/l | senza variazioni anomale | — | Single value · Comune di Ostra |
| Turbidity | < 0,25 NTU below limit of quantification | accettabile per i consumatori, senza variazioni anomale | — | Single value · Comune di Ostra |
* 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.
Further parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 93,7 mg/l | — | — | Single value · Comune di Ostra |
| Magnesium | 15,3 mg/l | — | — | Single value · Comune di Ostra |
| Total hardness | 30 °F | — | — | Single value · Comune di Ostra |
| Vanadium | < 1 µg/l below limit of quantification | 0.14 mg/l | < 0.7 % * | Single value · Comune di Ostra |
* 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).