Italy · Comune

Drinking water in Ottobiano

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).

Ottobiano

Pavia Acque

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 22/04/2024. 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

11.2 °dH

Key values Ottobiano
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 · Ottobiano
Lead	<1 µg/L Pb below limit of quantification	10 µg/l	< 10 % *	Single value · Ottobiano
Sulphate	43 mg/L SO4	250 mg/l	17 %	Single value · Ottobiano
Sodium	7 mg/L Na	200 mg/l	3 %	Single value · Ottobiano

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

Indicator parameters (9)

Indicator parameters – Ottobiano
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 · Ottobiano
Chloride	8 mg/L Cl	250 mg/l	3 %	Single value · Ottobiano
Conductivity (25 °C)	377 µS/cm	2,500 µS/cm	—	Single value · Ottobiano
Iron	11 µg/L Fe	0.2 mg/l	5 %	Single value · Ottobiano
Manganese	<5 µg/L Mn below limit of quantification	50 µg/l	< 10 % *	Single value · Ottobiano
pH	7,6 unità pH	6,5–9,5	—	Single value · Ottobiano
Sodium	7 mg/L Na	200 mg/l	3 %	Single value · Ottobiano
Sulphate	43 mg/L SO4	250 mg/l	17 %	Single value · Ottobiano
Total organic carbon (TOC)	<0,3 mg/L C below limit of quantification	senza variazioni anomale	—	Single value · Ottobiano

Further parameters (9)

Further parameters – Ottobiano
Parameter	Value	Parametric value	Share of the parametric value	Reference
Bromide	<0,05 mg/L Br below limit of quantification	—	—	Single value · Ottobiano
Calcium	59 mg/L Ca	—	—	Single value · Ottobiano
Dry residue	234 mg/L	—	—	Single value · Ottobiano
Magnesium	11,7 mg/L Mg	—	—	Single value · Ottobiano
Phosphate	<0,15 mg/L P2O5 below limit of quantification	—	—	Single value · Ottobiano
Potassium	1,8 mg/L K	—	—	Single value · Ottobiano
Total hardness	20 °F	—	—	Single value · Ottobiano
Vanadium	<1 µg/L V below limit of quantification	0.14 mg/l	< 0.7 % *	Single value · Ottobiano
Zinc	49 µg/L Zn	—	—	Single value · Ottobiano

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/2024/10/2024.04.08_CBL_Lomello.pdf · 22/04/2024 · Campionamento 08/04/2024, Analisi 09/04/2024-22/04/2024 · 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).