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Italy · Comune

Drinking water in Ronchi dei Legionari

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).

Ronchi dei Legionari

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.

Water hardness
10.6 °dH
Key values Ronchi dei Legionari
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7 mg/L 50 mg/l
14 %
Single value · Ronchi dei Legionari
Sulphate 13,0 mg/L 250 mg/l
5 %
Single value · Ronchi dei Legionari
Sodium 2,5 mg/L 200 mg/l
1 %
Single value · Ronchi dei Legionari
Show all recorded parameters (18 — most recent value per parameter)

Chemical parameters (4)

Chemical parameters – Ronchi dei Legionari
Parameter Value Parametric value Share of the parametric value Reference
Arsenic 1 µg/L 10 µg/l
10 %
Single value · Ronchi dei Legionari
Fluoride 0,10 mg/L 1.5 mg/l
7 %
Single value · Ronchi dei Legionari
Nitrate 7 mg/L 50 mg/l
14 %
Single value · Ronchi dei Legionari
Nitrite 0,02 mg/L 0.5 mg/l
4 %
Single value · Ronchi dei Legionari

Indicator parameters (7)

Indicator parameters – Ronchi dei Legionari
Parameter Value Parametric value Share of the parametric value Reference
Ammonium 0,02 mg/L 0.5 mg/l
4 %
Single value · Ronchi dei Legionari
Chloride 4,0 mg/L 250 mg/l
2 %
Single value · Ronchi dei Legionari
Conductivity (25 °C) 306 µS/cm a 20°C 2,500 µS/cm Single value · Ronchi dei Legionari
Manganese 5 µg/L 50 µg/l
10 %
Single value · Ronchi dei Legionari
pH 7,7 unità pH a 20°C 6,5–9,5 Single value · Ronchi dei Legionari
Sodium 2,5 mg/L 200 mg/l
1 %
Single value · Ronchi dei Legionari
Sulphate 13,0 mg/L 250 mg/l
5 %
Single value · Ronchi dei Legionari

Treatment substances (1)

Treatment substances – Ronchi dei Legionari
Parameter Value Parametric value Share of the parametric value Reference
Total chlorine 0,01 mg/l Cl2 Single value · Ronchi dei Legionari

Further parameters (6)

Further parameters – Ronchi dei Legionari
Parameter Value Parametric value Share of the parametric value Reference
Calcium 57,0 mg/L Single value · Ronchi dei Legionari
Dry residue 237 mg/L Single value · Ronchi dei Legionari
Hydrogen carbonate 191 mg/L Single value · Ronchi dei Legionari
Magnesium 12 mg/L Single value · Ronchi dei Legionari
Potassium 1 mg/L Single value · Ronchi dei Legionari
Total hardness 19 °F Single value · Ronchi dei Legionari

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.

Source: https://www.irisacqua.it/wp-content/uploads/2020/07/QualitÃ-dellacqua-I-semestre-2018.pdf · Anno 2018 - I semestre · retrieved on 08/07/2026

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.
< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

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).