Is Tap Water Safe to Drink in Italy?

For most travelers, tap water in Italy is safe to drink. Italian law sets binding limits for "water intended for human consumption," the legal term for drinking water, and the most recent official national data show that most tests meet those limits. Exceptions occur in certain regions and situations, so the answer depends on where you are and where your water comes from.

The guide covers four questions: what the law requires, how to use public fountains, how water quality varies by region, and how to order water in a restaurant. It gives the figures on record, the dates to check, and where official information ends. Where a figure changes over time, its date appears alongside it.

What Italian law requires for tap water

Italy replaced its 2001 drinking-water decree with Legislative Decree 18 of 2023, which puts into Italian law a European Union directive on drinking water (Directive 2020/2184). The decree sets limits for each substance that can appear in drinking water. Its limits include lead at 10 micrograms per liter until 2036, then 5 micrograms per liter; arsenic at 10 micrograms per liter; nitrates at 50 milligrams per liter; and fluoride at 1.5 milligrams per liter. For bacteria, the limit for E. coli and intestinal enterococci is zero per 100 ml. A zero limit means that a sample containing either bacterium fails.

Several dates in the decree matter for a traveler who wants to check the rules. The publication date is reported as 6 March 2023, and the entry-into-force date as 21 March 2023. The decree was signed on 23 February 2023. Check the dates in the Gazzetta Ufficiale, Italy’s official gazette, before you quote them. Utilities and authorities were required to meet the decree’s standard limits by 12 January 2026, and published compliance figures for that deadline are not available.

The total PFAS limit (a group of industrial chemicals sometimes called "forever chemicals") is set in the decree text. One PFAS sum parameter has a six-month postponement. Anyone who needs an exact PFAS number should read the consolidated text of the decree rather than a secondary summary.

What the official test data show

The most useful official dataset is the national water-quality report from the Istituto Superiore di Sanità.pdf/c51e265a-e740-648b-e1dc-69ef04217305?t=1721660707038), Italy’s national public health institute, which covers the years 2020 to 2022. It counts "non-conformities," meaning test results that fall outside the legal limits. In Abruzzo, the report records 232,821 analyses over three years and 958 non-conformities, about 0.41 percent. In Campania, it records 69,333 analyses and 2,875 non-conformities, about 4.1 percent over the three years and about 5.2 percent in 2022, with the rate rising each year.

The report covers only some regions, so it does not give a full national total. It also does not name the substances behind most failed tests, so a traveler cannot tell from it which contaminants caused the problems.

Campania’s regional environmental agency, ARPAC, gives a different picture. Its undated page says the agency analyzes about 13,000 samples a year and finds non-conformities of about 3 percent, "in line with the national average." That figure is lower than the national report’s 2022 figure for Campania. The two may measure different sets of samples, and the gap is not explained. Each figure describes only what its own measurement covers, so do not compare them directly.

The same national report also flags cyanobacteria, a type of blue-green algae, in reservoirs used for drinking water in almost all regions. Its monitoring summary treats the problem as a concern for the water source. It makes no finding about the tap in any particular city. The summary is undated.

Using public fountains

Rome’s cast-iron drinking fountains, called nasoni (the Italian word for "big noses," after the spouts), and Milan’s similar fountains, called vedovelle, are the best-known public water sources in the country. Water from these fountains is generally treated as safe to drink. That assumption rests on general EU standards and monitoring, not on published test results for individual fountains. No city has published test results for specific fountains.

The most useful practical rule is the sign. Water from a nasone or a tap is treated as drinkable unless it carries the sign acqua non potabile, which means "water not drinkable." No official list of drinkable fountains is published, so the sign is the most reliable warning available, but nothing checks it against an official list. A fountain with no sign is treated as normal, but no check certifies it as safe.

Several features identify a working nasone. Cast iron, a steady stream of water, and cold water are commonly cited signs that a fountain is active. These are informal observations, not official criteria. One rule of thumb is that a fountain is fine if you would drink from a tap without hesitating, but that is a personal judgment, not a standard.

No city inventory gives the number of nasoni in Rome. Estimates of 2,500 or more circulate, but none is backed by a count. Estimates of the fountains’ origin range from the late 1800s to the 1870s. The water’s source is also unsettled, with Apennine springs and aqueducts both named. ACEA, Rome’s water utility, is the most likely primary supplier, but no ACEA report confirms the sourcing.

Be careful with the decorative fountains in Rome. A Rome drinking-water guide separates the working nasoni from the monumental fountains and advises against drinking from the Trevi Fountain. That is advice, not a city directive, but it is sensible because the monumental fountains are not built as drinking taps.

Regional differences in taste and minerals

Water quality is not uniform across Italy, but the differences that the material supports concern taste and mineral content rather than a documented health risk. Water from some regions tastes harder or more mineral-heavy, which can change the flavor of coffee or tea. Florence is a common example. The minerals are the reason given for the taste. The source is named as both the Arno River and Apennine springs, so treat the origin as unsettled.

Filter-company sites often publish a table of "hardness" ranges by region, with northern Italy described as lighter and southern Italy as harder. Hardness refers to the calcium and magnesium dissolved in water. These tables cite no measurement method, date, or utility. Treat them only as rough impressions of taste.

Rural areas and small villages need more care. One travel guide says most rural areas have clean water but warns that some remote homes and farms get water from private wells that are not regularly tested. That warning has no official source, so treat it as a reason to ask rather than a finding. If you stay at a farm stay, a remote village house, or a property that relies on its own well, ask the host where the water comes from and whether it is tested. If the answer is unclear, buy bottled water for drinking.

Case dell’acqua and refill points

Many Italian towns have case dell’acqua, which translates as "water houses." These are self-service dispensers connected to the local water network that sell still or sparkling water by the liter. They are the most practical alternative to buying bottled water, but they are not free everywhere, and the prices change. The table below lists prices from municipal and news notices, with the notice dates.

Vicenza’s official page lists prices that do not agree with each other. One figure, for 1.5 liters, looks wrong, so check the municipal website before you use a Vicenza dispenser. Poggio Torriana, in Emilia-Romagna, lets visitors take up to 9 liters of still water for free and charges €0.05 per liter for sparkling water. Its rechargeable cards cost €5 at a petrol station, which includes 40 liters of sparkling water, or €7 if delivered. Borriana accepts a SmartCard or coins. Vicenza and Poggio Torriana use rechargeable cards. Commercial sites quote general ranges of about 2 to 7 cents per liter. Treat those as rough guides.

Because prices and payment methods change, confirm the current figure on the municipal website of the town you plan to visit. The dispensers also differ on what treatment they add. Some sites describe extra filtration, but no lab analysis of these houses is published, so the quality of water at any one house is undocumented.

Ordering water in restaurants

Italian restaurants have no legal duty to serve tap water. A Court of Cassation ordinance (number 11827, dated 29 April 2026) held that no law requires a public establishment or hotel to serve tap water to customers, and that the choice belongs to the business unless a different contract applies. The case involved a customer at a luxury hotel restaurant who was refused tap water and had to buy bottled water, reportedly at €10 per liter. Her offer to pay for tap water in carafes was also refused. The lower courts had sided with the hotel in 2024, and the Court of Cassation rejected her appeal. Reports say the reasoning applies to five-star hotels as well. The press reports on the ruling describe it, and the order itself gives the exact reasoning.

Public premises that serve drinks must have a drinking-water source that meets hygiene requirements. That rule concerns hygiene. It does not require a restaurant to offer tap water to diners.

If a restaurant charges for tap water, the price must appear on the menu, as this guide to restaurant pricing rules explains. Filtered or treated tap water can carry a charge when the price is shown. Serving a carafe of tap water is a courtesy rather than a legal requirement, and no sanction for refusing one was identified in the material reviewed. The bigger issue, as a consumer report on the ruling explains, is the lack of a clear serving rule rather than the price itself.

The rules for bottled water are less settled. Natural mineral water is commonly expected in its original sealed bottle, but no statute requiring it has been confirmed. Decree 181 of 2003 is reported to require carafes of treated tap water to carry the label acqua potabile trattata (or acqua potabile trattata e gassata for sparkling water). The scope of that rule and whether it applies to restaurant carafes is unverified. The rules for sparkling water in restaurants are unclear.

For practical purposes, ask for acqua del rubinetto (tap water) when you order. If the server says it is not available, ask whether the restaurant charges for it, and check the menu for a listed price. Expect roughly €2 to €3 for a bottle of water in a restaurant. The figure is an estimate; no menu survey stands behind it. The cover charge, called the coperto, does not include a carafe of tap water. The coperto’s legal basis is unclear.

What to check before you drink or order

• Drink tap water in most of Italy: Italian law sets binding limits, and the latest official national data show most tests meet them, though the figures vary by region.
• Read the sign on every fountain: Water from a public nasone or tap is drinkable unless it carries acqua non potabile, and no official list of safe fountains exists.
• Check the current price before using a water house: Municipal case dell’acqua prices range from free to 10 cents per liter, and some town notices are internally inconsistent, so check the local website.
• Ask about the water source in rural stays: Remote farms and houses may draw from private wells that are not regularly tested, so ask the host before you drink the water.
• Expect to pay for water in restaurants if the menu does not offer tap water: No law requires a restaurant to serve tap water, but any charge for it must appear on the menu.