Italy · Comune

Drinking water in Colli Verdi

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).

R-Colli Verdi

Pavia Acque

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 27/05/2024. 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

17.9 °dH

Key values R-Colli Verdi
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	2 mg/L NO3	50 mg/l	4 %	Single value · R-Colli Verdi
Lead	2 µg/L Pb	10 µg/l	20 %	Single value · R-Colli Verdi
Sulphate	13 mg/L SO4	250 mg/l	5 %	Single value · R-Colli Verdi
Sodium	3 mg/L Na	200 mg/l	2 %	Single value · R-Colli Verdi

Show all recorded parameters (40 — most recent value per parameter)

Chemical parameters (22)

Chemical parameters – R-Colli Verdi
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 · R-Colli Verdi
Antimony	< 1 µg/L Sb below limit of quantification	10 µg/l	< 10 % *	Single value · R-Colli Verdi
Arsenic	< 1 µg/L As below limit of quantification	10 µg/l	< 10 % *	Single value · R-Colli Verdi
Benzene	< 0,1 µg/L below limit of quantification	1 µg/l	< 10 % *	Single value · R-Colli Verdi
Bromodichloromethane	< 0,1 µg/L below limit of quantification	—	—	Single value · R-Colli Verdi
Cadmium	< 0,5 µg/L Cd below limit of quantification	5 µg/l	< 10 % *	Single value · R-Colli Verdi
Chromium	10 µg/L Cr	50 µg/l	20 %	Single value · R-Colli Verdi
Copper	< 0,1 mg/L Cu below limit of quantification	2 mg/l	< 5 % *	Single value · R-Colli Verdi
Dibromochloromethane	< 0,1 µg/L below limit of quantification	—	—	Single value · R-Colli Verdi
Fluoride	< 0,1 mg/L F below limit of quantification	1.5 mg/l	< 7 % *	Single value · R-Colli Verdi
Lead	2 µg/L Pb	10 µg/l	20 %	Single value · R-Colli Verdi
Nickel	2 µg/L Ni	20 µg/l	10 %	Single value · R-Colli Verdi
Nitrate	2 mg/L NO3	50 mg/l	4 %	Single value · R-Colli Verdi
Nitrite	< 0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Single value · R-Colli Verdi
Tetrachloroethene	< 0,1 µg/L below limit of quantification	—	—	Single value · R-Colli Verdi
Tetrachloroethene and Trichloroethene (sum)	< 1 µg/L below limit of quantification	10 µg/l	< 10 % *	Single value · R-Colli Verdi
Tribromomethane (bromoform)	< 0,1 µg/L below limit of quantification	—	—	Single value · R-Colli Verdi
Trichloroethene	< 0,1 µg/L below limit of quantification	—	—	Single value · R-Colli Verdi
Trichloromethane (chloroform)	< 0,1 µg/L below limit of quantification	—	—	Single value · R-Colli Verdi
Trihalomethanes — Total	< 1 µg/L below limit of quantification	30 µg/l	< 3 % *	Single value · R-Colli Verdi
Uranium	< 1 µg/L U below limit of quantification	30 µg/l	< 3 % *	Single value · R-Colli Verdi
Vinyl chloride	< 0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Single value · R-Colli Verdi

* 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 (9)

Indicator parameters – R-Colli Verdi
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 · R-Colli Verdi
Chloride	3 mg/L Cl	250 mg/l	1 %	Single value · R-Colli Verdi
Conductivity (25 °C)	545 µS/cm	2,500 µS/cm	—	Single value · R-Colli Verdi
Iron	< 5 µg/L Fe below limit of quantification	0.2 mg/l	< 3 % *	Single value · R-Colli Verdi
Manganese	< 5 µg/L Mn below limit of quantification	50 µg/l	< 10 % *	Single value · R-Colli Verdi
pH	8,0 unità pH	6,5–9,5	—	Single value · R-Colli Verdi
Sodium	3 mg/L Na	200 mg/l	2 %	Single value · R-Colli Verdi
Sulphate	13 mg/L SO4	250 mg/l	5 %	Single value · R-Colli Verdi
Total organic carbon (TOC)	0,47 mg/L C	senza variazioni anomale	—	Single value · R-Colli Verdi

Further parameters (9)

Further parameters – R-Colli Verdi
Parameter	Value	Parametric value	Share of the parametric value	Reference
Bromide	< 0,05 mg/L Br below limit of quantification	—	—	Single value · R-Colli Verdi
Calcium	99 mg/L Ca	—	—	Single value · R-Colli Verdi
Dry residue	338 mg/L	—	—	Single value · R-Colli Verdi
Magnesium	16,3 mg/L Mg	—	—	Single value · R-Colli Verdi
Phosphate	< 0,15 mg/L P2O5 below limit of quantification	—	—	Single value · R-Colli Verdi
Potassium	0,90 mg/L K	—	—	Single value · R-Colli Verdi
Total hardness	32 °F	—	—	Single value · R-Colli Verdi
Vanadium	1 µg/L V	0.14 mg/l	0.7 %	Single value · R-Colli Verdi
Zinc	630 µg/L Zn	—	—	Single value · R-Colli Verdi

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/2024/11/2024.05.20_BSP_Santa-Giuletta.pdf · 27/05/2024 · Campionamento 20-mag-24 (diverse ore), Rapporto di Prova 27/05/2024 · 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).