Italy · Comune

Drinking water in Rosasco

One supply zone, published by Pavia Acque. 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).

Rosasco

Pavia Acque

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 19/02/2024. 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

12.3 °dH

Key values Rosasco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	< 1,5 mg/L NO3 below limit of quantification	50 mg/l	< 3 % *	Single value · Rosasco
Lead	< 1 µg/L Pb below limit of quantification	10 µg/l	< 10 % *	Single value · Rosasco
Sulphate	40 mg/L SO4	250 mg/l	16 %	Single value · Rosasco
Sodium	6 mg/L Na	200 mg/l	3 %	Single value · Rosasco

* 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 (51 — most recent value per parameter)

Chemical parameters (33)

Chemical parameters – Rosasco
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,2-dichloroethane	< 0,1 µg/L below limit of quantification	3 µg/l	< 3 % *	Single value · Rosasco
2,6-Dichlorobenzamide (BAM)	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Antimony	< 1 µg/L Sb below limit of quantification	10 µg/l	< 10 % *	Single value · Rosasco
Arsenic	< 1 µg/L As below limit of quantification	10 µg/l	< 10 % *	Single value · Rosasco
Atrazine	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Bentazone	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Benzene	< 0,1 µg/L below limit of quantification	1 µg/l	< 10 % *	Single value · Rosasco
Bromodichloromethane	< 0,1 µg/L below limit of quantification	—	—	Single value · Rosasco
Cadmium	< 0,5 µg/L Cd below limit of quantification	5 µg/l	< 10 % *	Single value · Rosasco
Chromium	< 1 µg/L Cr below limit of quantification	50 µg/l	< 2 % *	Single value · Rosasco
Copper	< 0,1 mg/L Cu below limit of quantification	2 mg/l	< 5 % *	Single value · Rosasco
Desethylatrazine	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Desethylterbuthylazine	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Dibromochloromethane	< 0,1 µg/L below limit of quantification	—	—	Single value · Rosasco
Fluoride	< 0,1 mg/L F below limit of quantification	1.5 mg/l	< 7 % *	Single value · Rosasco
Lead	< 1 µg/L Pb below limit of quantification	10 µg/l	< 10 % *	Single value · Rosasco
Metolachlor	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Molinate	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Nickel	< 1 µg/L Ni below limit of quantification	20 µg/l	< 5 % *	Single value · Rosasco
Nitrate	< 1,5 mg/L NO3 below limit of quantification	50 mg/l	< 3 % *	Single value · Rosasco
Nitrite	< 0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Single value · Rosasco
Pesticides — Total	< 0,02 µg/L below limit of quantification	0.5 µg/l	< 4 % *	Single value · Rosasco
Propazine	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Simazine	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Terbuthylazine	< 0,02 µg/L below limit of quantification	—	—	Single value · Rosasco
Tetrachloroethene	< 0,1 µg/L below limit of quantification	—	—	Single value · Rosasco
Tetrachloroethene and Trichloroethene (sum)	< 1 µg/L below limit of quantification	10 µg/l	< 10 % *	Single value · Rosasco
Tribromomethane (bromoform)	< 0,1 µg/L below limit of quantification	—	—	Single value · Rosasco
Trichloroethene	< 0,1 µg/L below limit of quantification	—	—	Single value · Rosasco
Trichloromethane (chloroform)	< 0,1 µg/L below limit of quantification	—	—	Single value · Rosasco
Trihalomethanes — Total	< 1 µg/L below limit of quantification	30 µg/l	< 3 % *	Single value · Rosasco
Uranium	< 1 µg/L U below limit of quantification	30 µg/l	< 3 % *	Single value · Rosasco
Vinyl chloride	< 0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Single value · Rosasco

Indicator parameters (9)

Indicator parameters – Rosasco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Ammonium	< 0,1 mg/L NH4 below limit of quantification	0.5 mg/l	< 20 % *	Single value · Rosasco
Chloride	11 mg/L Cl	250 mg/l	4 %	Single value · Rosasco
Conductivity (25 °C)	405 µS/cm	2,500 µS/cm	—	Single value · Rosasco
Iron	< 5 µg/L Fe below limit of quantification	0.2 mg/l	< 3 % *	Single value · Rosasco
Manganese	< 5 µg/L Mn below limit of quantification	50 µg/l	< 10 % *	Single value · Rosasco
pH	7,7 unità pH	6,5–9,5	—	Single value · Rosasco
Sodium	6 mg/L Na	200 mg/l	3 %	Single value · Rosasco
Sulphate	40 mg/L SO4	250 mg/l	16 %	Single value · Rosasco
Total organic carbon (TOC)	< 0,3 mg/L C below limit of quantification	senza variazioni anomale	—	Single value · Rosasco

Further parameters (9)

Further parameters – Rosasco
Parameter	Value	Parametric value	Share of the parametric value	Reference
Bromide	< 0,05 mg/L Br below limit of quantification	—	—	Single value · Rosasco
Calcium	68 mg/L Ca	—	—	Single value · Rosasco
Dry residue	251 mg/L	—	—	Single value · Rosasco
Magnesium	13,3 mg/L Mg	—	—	Single value · Rosasco
Phosphate	< 0,15 mg/L P2O5 below limit of quantification	—	—	Single value · Rosasco
Potassium	1,5 mg/L K	—	—	Single value · Rosasco
Total hardness	22 °F	—	—	Single value · Rosasco
Vanadium	< 1 µg/L V below limit of quantification	0.14 mg/l	< 0.7 % *	Single value · Rosasco
Zinc	12 µg/L Zn	—	—	Single value · Rosasco

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.paviaacque.it/wp-content/uploads/2024/06/2024.02.12_A.S.M.-Vig_Langosco.pdf · 19/02/2024 · Campionamento 12/02/2024, Prüfzeitraum 13/02/2024-19/02/2024 · 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).