Italy · Comune

Drinking water in Capena

5 supply zones, published by ACEA ATO 2 S.p.A.. 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).

ZONA 1 MONTE SCORANO

ACEA ATO 2 S.p.A.

Water hardness

33.3 °dH

Key values ZONA 1 MONTE SCORANO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median
Nitrate	16,60 mg/L NO3	50 mg/l	33 %	Median
Lead	0,22 µg/L Pb	10 µg/l	—	Median
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Sulphate	140 mg/L SO4	250 mg/l	56 %	Median
Sodium	56,9 mg/L Na	200 mg/l	28 %	Median

* 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 (61 — most recent value per parameter)

Microbiology (2)

Microbiology – ZONA 1 MONTE SCORANO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Intestinal enterococci	Conforme N/100 mL	0/100 ml	—	Median

Chemical parameters (28)

Chemical parameters – ZONA 1 MONTE SCORANO
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 % *	Median
Acrylamide	<0,03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Median
Antimony	<1,0 µg/L Sb below limit of quantification	10 µg/l	—	Median
Arsenic	6,00 µg/L As	10 µg/l	60 %	Median
Bisphenol A	<0,25 µg/L below limit of quantification	2.5 µg/l	< 10 % *	Median
Boron	0,105 mg/L B	1.5 mg/l	—	Median
Cadmium	<0,2 µg/L Cd below limit of quantification	5 µg/l	—	Median
Chlorate	<0,05 mg/L ClO3 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chlorite	<0,05 mg/L ClO2 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chromium	<5,0 µg/L Cr below limit of quantification	25 µg/l	—	Median
Copper	0,001 mg/L Cu	2 mg/l	—	Median
Cyanide	<10 µg/L CN below limit of quantification	50 µg/l	—	Median
Epichlorohydrin	<0,05 µg/L below limit of quantification	0.1 µg/l	< 50 % *	Median
Fluoride	0,89 mg/L	1.5 mg/l	59 %	Median
Haloacetic acids (HAA)	- µg/L not determined	60 µg/l	—	Median
Lead	0,22 µg/L Pb	10 µg/l	—	Median
Mercury	<0,2 µg/L Hg below limit of quantification	1 µg/l	—	Median
Nickel	<2,0 µg/L Ni below limit of quantification	20 µg/l	—	Median
Nitrate	16,60 mg/L NO3	50 mg/l	33 %	Median
Nitrite	<0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Median
Pesticides — Total	- µg/L not determined	0.5 µg/l	—	Median
Polycyclic aromatic hydrocarbons	- µg/L not determined	0.1 µg/l	—	Median
Selenium	0,84 µg/L Se	20 µg/l	—	Median
Tetrachloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trichloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trihalomethanes — Total	<1,0 µg/L below limit of quantification	30 µg/l	< 3 % *	Median
Uranium	3,45 µg/L U	30 µg/l	—	Median
Vinyl chloride	<0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Median

PFAS (1)

PFAS – ZONA 1 MONTE SCORANO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median

Indicator parameters (16)

Indicator parameters – ZONA 1 MONTE SCORANO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	3,7 µg/L Al	0.2 mg/l	—	Median
Ammonium	<0,1 mg/L NH4 below limit of quantification	0.5 mg/l	< 20 % *	Median
Chloride	81,7 mg/L Cl	250 mg/l	33 %	Median
Coliform bacteria	Conforme MPN/100 mL	0/100 ml	—	Median
Colour	Incolore Scala Pt/C	accettabile per i consumatori, senza variazioni anomale	—	Median
Conductivity (25 °C)	1151 µS/cm	2,500 µS/cm	—	Median
Iron	14,0 µg/L Fe	0.2 mg/l	—	Median
Manganese	3,30 µg/L Mn	50 µg/l	—	Median
Odour	0 Diluiz. 25	accettabile per i consumatori, senza variazioni anomale	—	Median
pH	7,30 pH	6,5–9,5	—	Median
Sodium	56,9 mg/L Na	200 mg/l	28 %	Median
Sulphate	140 mg/L SO4	250 mg/l	56 %	Median
Taste	0 tasso diluz.	accettabile per i consumatori, senza variazioni anomale	—	Median
Temperature	16,0 °C	—	—	Median
Total organic carbon (TOC)	0,50 mg/L C	senza variazioni anomale	—	Median
Turbidity	<0,5 NTU below limit of quantification	accettabile per i consumatori, senza variazioni anomale	—	Median

Treatment substances (1)

Treatment substances – ZONA 1 MONTE SCORANO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Free chlorine	0,20 mg/L Cl2	—	—	Median

Further parameters (13)

Further parameters – ZONA 1 MONTE SCORANO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	413 mg/L CaCO3	—	—	Median
Beryllium	<0,2 µg/L Be below limit of quantification	—	—	Median
Bromide	<50 µg/L Br below limit of quantification	—	—	Median
Calcium	190,00 mg/L Ca	—	—	Median
Dry residue	872 mg/L	—	—	Median
Hydrogen carbonate	504 mg/L HCO3	—	—	Median
Magnesium	29,10 mg/L Mg	—	—	Median
Phosphate	141 µg/L P2O5	—	—	Median
Potassium	6,63 mg/L K	—	—	Median
Silicate / silicic acid	48,4 mg/L SiO2	—	—	Median
Thallium	<0,2 µg/L Tl below limit of quantification	—	—	Median
Total hardness	59,4 °F	—	—	Median
Vanadium	11,15 µg/L V	0.14 mg/l	—	Median

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.aceaato2.a-acqua.it/content/dam/acea-ato2/pdf/it/mappe-qualita/capena_zona_1_monte_scorano.pdf · luglio 2026 · luglio 2026 · retrieved on 08/07/2026

Zona 2 San Leo

ACEA ATO 2 S.p.A.

Water hardness

20.2 °dH

Key values Zona 2 San Leo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median
Nitrate	22,80 mg/L NO3	50 mg/l	46 %	Median
Lead	0,20 µg/L Pb	10 µg/l	—	Median
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Sulphate	29,8 mg/L SO4	250 mg/l	12 %	Median
Sodium	29,0 mg/L Na	200 mg/l	14 %	Median

Show all recorded parameters (61 — most recent value per parameter)

Microbiology (2)

Microbiology – Zona 2 San Leo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Intestinal enterococci	Conforme N/100 mL	0/100 ml	—	Median

Chemical parameters (28)

Chemical parameters – Zona 2 San Leo
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 % *	Median
Acrylamide	<0,03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Median
Antimony	<1,0 µg/L Sb below limit of quantification	10 µg/l	—	Median
Arsenic	7,50 µg/L As	10 µg/l	75 %	Median
Bisphenol A	<0,25 µg/L below limit of quantification	2.5 µg/l	< 10 % *	Median
Boron	0,068 mg/L B	1.5 mg/l	—	Median
Cadmium	<0,2 µg/L Cd below limit of quantification	5 µg/l	—	Median
Chlorate	<0,05 mg/L ClO3 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chlorite	<0,05 mg/L ClO2 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chromium	<5,0 µg/L Cr below limit of quantification	25 µg/l	—	Median
Copper	0,002 mg/L Cu	2 mg/l	—	Median
Cyanide	<10 µg/L CN below limit of quantification	50 µg/l	—	Median
Epichlorohydrin	<0,05 µg/L below limit of quantification	0.1 µg/l	< 50 % *	Median
Fluoride	0,60 mg/L	1.5 mg/l	40 %	Median
Haloacetic acids (HAA)	- µg/L not determined	60 µg/l	—	Median
Lead	0,20 µg/L Pb	10 µg/l	—	Median
Mercury	<0,2 µg/L Hg below limit of quantification	1 µg/l	—	Median
Nickel	<2,0 µg/L Ni below limit of quantification	20 µg/l	—	Median
Nitrate	22,80 mg/L NO3	50 mg/l	46 %	Median
Nitrite	<0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Median
Pesticides — Total	- µg/L not determined	0.5 µg/l	—	Median
Polycyclic aromatic hydrocarbons	- µg/L not determined	0.1 µg/l	—	Median
Selenium	<1.0 µg/L Se below limit of quantification	20 µg/l	—	Median
Tetrachloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trichloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trihalomethanes — Total	1,4 µg/L	30 µg/l	5 %	Median
Uranium	1,60 µg/L U	30 µg/l	—	Median
Vinyl chloride	<0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Median

PFAS (1)

PFAS – Zona 2 San Leo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median

Indicator parameters (16)

Indicator parameters – Zona 2 San Leo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	11,3 µg/L Al	0.2 mg/l	—	Median
Ammonium	<0,1 mg/L NH4 below limit of quantification	0.5 mg/l	< 20 % *	Median
Chloride	26,1 mg/L Cl	250 mg/l	10 %	Median
Coliform bacteria	Conforme MPN/100 mL	0/100 ml	—	Median
Colour	Incolore Scala Pt/C	accettabile per i consumatori, senza variazioni anomale	—	Median
Conductivity (25 °C)	720 µS/cm	2,500 µS/cm	—	Median
Iron	14,8 µg/L Fe	0.2 mg/l	—	Median
Manganese	0,30 µg/L Mn	50 µg/l	—	Median
Odour	0 Diluiz. 25	accettabile per i consumatori, senza variazioni anomale	—	Median
pH	7,50 pH	6,5–9,5	—	Median
Sodium	29,0 mg/L Na	200 mg/l	14 %	Median
Sulphate	29,8 mg/L SO4	250 mg/l	12 %	Median
Taste	0 tasso diluz.	accettabile per i consumatori, senza variazioni anomale	—	Median
Temperature	16,0 °C	—	—	Median
Total organic carbon (TOC)	1,18 mg/L C	senza variazioni anomale	—	Median
Turbidity	<0,5 NTU below limit of quantification	accettabile per i consumatori, senza variazioni anomale	—	Median

Treatment substances (1)

Treatment substances – Zona 2 San Leo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Free chlorine	0,20 mg/L Cl2	—	—	Median

Further parameters (13)

Further parameters – Zona 2 San Leo
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	360 mg/L CaCO3	—	—	Median
Beryllium	<0,2 µg/L Be below limit of quantification	—	—	Median
Bromide	<50 µg/L Br below limit of quantification	—	—	Median
Calcium	123,00 mg/L Ca	—	—	Median
Dry residue	515 mg/L	—	—	Median
Hydrogen carbonate	439 mg/L HCO3	—	—	Median
Magnesium	13,20 mg/L Mg	—	—	Median
Phosphate	98 µg/L P2O5	—	—	Median
Potassium	6,29 mg/L K	—	—	Median
Silicate / silicic acid	50,7 mg/L SiO2	—	—	Median
Thallium	<0,2 µg/L Tl below limit of quantification	—	—	Median
Total hardness	36,1 °F	—	—	Median
Vanadium	9,40 µg/L V	0.14 mg/l	—	Median

Source: https://www.aceaato2.a-acqua.it/content/dam/acea-ato2/pdf/it/mappe-qualita/capena_zona_2_san_leo.pdf · luglio 2026 · luglio 2026 · retrieved on 08/07/2026

ZONA 3 SAN MARCO

ACEA ATO 2 S.p.A.

Water hardness

26.3 °dH

Key values ZONA 3 SAN MARCO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median
Nitrate	24,70 mg/L NO3	50 mg/l	49 %	Median
Lead	0,25 µg/L Pb	10 µg/l	—	Median
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Sulphate	91,3 mg/L SO4	250 mg/l	37 %	Median
Sodium	49,2 mg/L Na	200 mg/l	25 %	Median

Show all recorded parameters (61 — most recent value per parameter)

Microbiology (2)

Microbiology – ZONA 3 SAN MARCO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Intestinal enterococci	Conforme N/100 mL	0/100 ml	—	Median

Chemical parameters (28)

Chemical parameters – ZONA 3 SAN MARCO
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 % *	Median
Acrylamide	<0,03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Median
Antimony	<1,0 µg/L Sb below limit of quantification	10 µg/l	—	Median
Arsenic	5,80 µg/L As	10 µg/l	58 %	Median
Bisphenol A	<0,25 µg/L below limit of quantification	2.5 µg/l	< 10 % *	Median
Boron	0,070 mg/L B	1.5 mg/l	—	Median
Cadmium	<0,2 µg/L Cd below limit of quantification	5 µg/l	—	Median
Chlorate	<0,05 mg/L ClO3 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chlorite	<0,05 mg/L ClO2 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chromium	<5,0 µg/L Cr below limit of quantification	25 µg/l	—	Median
Copper	0,001 mg/L Cu	2 mg/l	—	Median
Cyanide	<10 µg/L CN below limit of quantification	50 µg/l	—	Median
Epichlorohydrin	<0,05 µg/L below limit of quantification	0.1 µg/l	< 50 % *	Median
Fluoride	0,61 mg/L	1.5 mg/l	41 %	Median
Haloacetic acids (HAA)	- µg/L not determined	60 µg/l	—	Median
Lead	0,25 µg/L Pb	10 µg/l	—	Median
Mercury	<0,2 µg/L Hg below limit of quantification	1 µg/l	—	Median
Nickel	<2,0 µg/L Ni below limit of quantification	20 µg/l	—	Median
Nitrate	24,70 mg/L NO3	50 mg/l	49 %	Median
Nitrite	<0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Median
Pesticides — Total	- µg/L not determined	0.5 µg/l	—	Median
Polycyclic aromatic hydrocarbons	- µg/L not determined	0.1 µg/l	—	Median
Selenium	<1.0 µg/L Se below limit of quantification	20 µg/l	—	Median
Tetrachloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trichloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trihalomethanes — Total	<1,0 µg/L below limit of quantification	30 µg/l	< 3 % *	Median
Uranium	4,50 µg/L U	30 µg/l	—	Median
Vinyl chloride	<0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Median

PFAS (1)

PFAS – ZONA 3 SAN MARCO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median

Indicator parameters (16)

Indicator parameters – ZONA 3 SAN MARCO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	9,4 µg/L Al	0.2 mg/l	—	Median
Ammonium	<0,1 mg/L NH4 below limit of quantification	0.5 mg/l	< 20 % *	Median
Chloride	57,0 mg/L Cl	250 mg/l	23 %	Median
Coliform bacteria	Conforme MPN/100 mL	0/100 ml	—	Median
Colour	Incolore Scala Pt/C	accettabile per i consumatori, senza variazioni anomale	—	Median
Conductivity (25 °C)	984 µS/cm	2,500 µS/cm	—	Median
Iron	12,5 µg/L Fe	0.2 mg/l	—	Median
Manganese	<0,2 µg/L Mn below limit of quantification	50 µg/l	—	Median
Odour	0 Diluiz. 25	accettabile per i consumatori, senza variazioni anomale	—	Median
pH	7,50 pH	6,5–9,5	—	Median
Sodium	49,2 mg/L Na	200 mg/l	25 %	Median
Sulphate	91,3 mg/L SO4	250 mg/l	37 %	Median
Taste	0 tasso diluz.	accettabile per i consumatori, senza variazioni anomale	—	Median
Temperature	17,5 °C	—	—	Median
Total organic carbon (TOC)	0,42 mg/L C	senza variazioni anomale	—	Median
Turbidity	<0,5 NTU below limit of quantification	accettabile per i consumatori, senza variazioni anomale	—	Median

Treatment substances (1)

Treatment substances – ZONA 3 SAN MARCO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Free chlorine	0,19 mg/L Cl2	—	—	Median

Further parameters (13)

Further parameters – ZONA 3 SAN MARCO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	399 mg/L CaCO3	—	—	Median
Beryllium	<0,2 µg/L Be below limit of quantification	—	—	Median
Bromide	<50 µg/L Br below limit of quantification	—	—	Median
Calcium	145,00 mg/L Ca	—	—	Median
Dry residue	746 mg/L	—	—	Median
Hydrogen carbonate	487 mg/L HCO3	—	—	Median
Magnesium	26,40 mg/L Mg	—	—	Median
Phosphate	139 µg/L P2O5	—	—	Median
Potassium	6,96 mg/L K	—	—	Median
Silicate / silicic acid	51,9 mg/L SiO2	—	—	Median
Thallium	<0,2 µg/L Tl below limit of quantification	—	—	Median
Total hardness	47,0 °F	—	—	Median
Vanadium	11,00 µg/L V	0.14 mg/l	—	Median

Source: https://www.aceaato2.a-acqua.it/content/dam/acea-ato2/pdf/it/mappe-qualita/capena_zona_3_san_marco.pdf · luglio 2026 · luglio 2026 · retrieved on 08/07/2026

ZONA 4 MONTE PROVETO

ACEA ATO 2 S.p.A.

Water hardness

34.1 °dH

Key values ZONA 4 MONTE PROVETO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median
Nitrate	3,50 mg/L NO3	50 mg/l	7 %	Median
Lead	0,20 µg/L Pb	10 µg/l	—	Median
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Sulphate	132,5 mg/L SO4	250 mg/l	53 %	Median
Sodium	50,5 mg/L Na	200 mg/l	25 %	Median

Show all recorded parameters (61 — most recent value per parameter)

Microbiology (2)

Microbiology – ZONA 4 MONTE PROVETO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Intestinal enterococci	Conforme N/100 mL	0/100 ml	—	Median

Chemical parameters (28)

Chemical parameters – ZONA 4 MONTE PROVETO
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 % *	Median
Acrylamide	<0,03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Median
Antimony	<1,0 µg/L Sb below limit of quantification	10 µg/l	—	Median
Arsenic	8,50 µg/L As	10 µg/l	85 %	Median
Bisphenol A	<0,25 µg/L below limit of quantification	2.5 µg/l	< 10 % *	Median
Boron	0,101 mg/L B	1.5 mg/l	—	Median
Cadmium	<0,2 µg/L Cd below limit of quantification	5 µg/l	—	Median
Chlorate	<0,05 mg/L ClO3 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chlorite	<0,05 mg/L ClO2 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chromium	<5,0 µg/L Cr below limit of quantification	25 µg/l	—	Median
Copper	<0,001 mg/L Cu below limit of quantification	2 mg/l	—	Median
Cyanide	<10 µg/L CN below limit of quantification	50 µg/l	—	Median
Epichlorohydrin	<0,05 µg/L below limit of quantification	0.1 µg/l	< 50 % *	Median
Fluoride	0,89 mg/L	1.5 mg/l	59 %	Median
Haloacetic acids (HAA)	- µg/L not determined	60 µg/l	—	Median
Lead	0,20 µg/L Pb	10 µg/l	—	Median
Mercury	<0,2 µg/L Hg below limit of quantification	1 µg/l	—	Median
Nickel	<2,0 µg/L Ni below limit of quantification	20 µg/l	—	Median
Nitrate	3,50 mg/L NO3	50 mg/l	7 %	Median
Nitrite	<0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Median
Pesticides — Total	- µg/L not determined	0.5 µg/l	—	Median
Polycyclic aromatic hydrocarbons	- µg/L not determined	0.1 µg/l	—	Median
Selenium	<1.0 µg/L Se below limit of quantification	20 µg/l	—	Median
Tetrachloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trichloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trihalomethanes — Total	2,55 µg/L	30 µg/l	9 %	Median
Uranium	2,30 µg/L U	30 µg/l	—	Median
Vinyl chloride	<0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Median

PFAS (1)

PFAS – ZONA 4 MONTE PROVETO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median

Indicator parameters (16)

Indicator parameters – ZONA 4 MONTE PROVETO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	2,6 µg/L Al	0.2 mg/l	—	Median
Ammonium	<0,1 mg/L NH4 below limit of quantification	0.5 mg/l	< 20 % *	Median
Chloride	66,8 mg/L Cl	250 mg/l	27 %	Median
Coliform bacteria	Conforme MPN/100 mL	0/100 ml	—	Median
Colour	Incolore Scala Pt/C	accettabile per i consumatori, senza variazioni anomale	—	Median
Conductivity (25 °C)	1156 µS/cm	2,500 µS/cm	—	Median
Iron	134,7 µg/L Fe	0.2 mg/l	—	Median
Manganese	6,65 µg/L Mn	50 µg/l	—	Median
Odour	0 Diluiz. 25	accettabile per i consumatori, senza variazioni anomale	—	Median
pH	7,45 pH	6,5–9,5	—	Median
Sodium	50,5 mg/L Na	200 mg/l	25 %	Median
Sulphate	132,5 mg/L SO4	250 mg/l	53 %	Median
Taste	0 tasso diluz.	accettabile per i consumatori, senza variazioni anomale	—	Median
Temperature	18,0 °C	—	—	Median
Total organic carbon (TOC)	0,53 mg/L C	senza variazioni anomale	—	Median
Turbidity	<0,5 NTU below limit of quantification	accettabile per i consumatori, senza variazioni anomale	—	Median

Treatment substances (1)

Treatment substances – ZONA 4 MONTE PROVETO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Free chlorine	0,20 mg/L Cl2	—	—	Median

Further parameters (13)

Further parameters – ZONA 4 MONTE PROVETO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	474 mg/L CaCO3	—	—	Median
Beryllium	<0,2 µg/L Be below limit of quantification	—	—	Median
Bromide	<50 µg/L Br below limit of quantification	—	—	Median
Calcium	164,00 mg/L Ca	—	—	Median
Dry residue	876,5 mg/L	—	—	Median
Hydrogen carbonate	579 mg/L HCO3	—	—	Median
Magnesium	48,35 mg/L Mg	—	—	Median
Phosphate	65 µg/L P2O5	—	—	Median
Potassium	6,57 mg/L K	—	—	Median
Silicate / silicic acid	27,0 mg/L SiO2	—	—	Median
Thallium	<0,2 µg/L Tl below limit of quantification	—	—	Median
Total hardness	60,9 °F	—	—	Median
Vanadium	2,90 µg/L V	0.14 mg/l	—	Median

Source: https://www.aceaato2.a-acqua.it/content/dam/acea-ato2/pdf/it/mappe-qualita/capena_zona_4_monte_proveto.pdf · luglio 2026 · luglio 2026 · retrieved on 08/07/2026

ZONA 5 S. ANTONIO

ACEA ATO 2 S.p.A.

Water hardness

25.1 °dH

Key values ZONA 5 S. ANTONIO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median
Nitrate	47,11 mg/L NO3	50 mg/l	94 %	Median
Lead	0,20 µg/L Pb	10 µg/l	—	Median
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Sulphate	95,4 mg/L SO4	250 mg/l	38 %	Median
Sodium	52,9 mg/L Na	200 mg/l	26 %	Median

Show all recorded parameters (61 — most recent value per parameter)

Microbiology (2)

Microbiology – ZONA 5 S. ANTONIO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	Conforme MPN/100 mL	0/100 ml	—	Median
Intestinal enterococci	Conforme N/100 mL	0/100 ml	—	Median

Chemical parameters (28)

Chemical parameters – ZONA 5 S. ANTONIO
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 % *	Median
Acrylamide	<0,03 µg/L below limit of quantification	0.1 µg/l	< 30 % *	Median
Antimony	<1,0 µg/L Sb below limit of quantification	10 µg/l	—	Median
Arsenic	9,37 µg/L As	10 µg/l	94 %	Median
Bisphenol A	<0,25 µg/L below limit of quantification	2.5 µg/l	< 10 % *	Median
Boron	0,100 mg/L B	1.5 mg/l	—	Median
Cadmium	<0,2 µg/L Cd below limit of quantification	5 µg/l	—	Median
Chlorate	<0,05 mg/L ClO3 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chlorite	<0,05 mg/L ClO2 below limit of quantification	0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid	—	Median
Chromium	<5,0 µg/L Cr below limit of quantification	25 µg/l	—	Median
Copper	<0,001 mg/L Cu below limit of quantification	2 mg/l	—	Median
Cyanide	<10 µg/L CN below limit of quantification	50 µg/l	—	Median
Epichlorohydrin	<0,05 µg/L below limit of quantification	0.1 µg/l	< 50 % *	Median
Fluoride	0,69 mg/L	1.5 mg/l	46 %	Median
Haloacetic acids (HAA)	- µg/L not determined	60 µg/l	—	Median
Lead	0,20 µg/L Pb	10 µg/l	—	Median
Mercury	<0,2 µg/L Hg below limit of quantification	1 µg/l	—	Median
Nickel	<2,0 µg/L Ni below limit of quantification	20 µg/l	—	Median
Nitrate	47,11 mg/L NO3	50 mg/l	94 %	Median
Nitrite	<0,05 mg/L NO2 below limit of quantification	0.5 mg/l	< 10 % *	Median
Pesticides — Total	- µg/L not determined	0.5 µg/l	—	Median
Polycyclic aromatic hydrocarbons	- µg/L not determined	0.1 µg/l	—	Median
Selenium	<1.0 µg/L Se below limit of quantification	20 µg/l	—	Median
Tetrachloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trichloroethene	<1,0 µg/L below limit of quantification	—	—	Median
Trihalomethanes — Total	9,233333333 µg/L	30 µg/l	31 %	Median
Uranium	2,91 µg/L U	30 µg/l	—	Median
Vinyl chloride	<0,1 µg/L below limit of quantification	0.5 µg/l	< 20 % *	Median

PFAS (1)

PFAS – ZONA 5 S. ANTONIO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	<0,10 µg/L below limit of quantification	0.1 µg/l	< 100 % *	Median

Indicator parameters (16)

Indicator parameters – ZONA 5 S. ANTONIO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	2,6 µg/L Al	0.2 mg/l	—	Median
Ammonium	<0,1 mg/L NH4 below limit of quantification	0.5 mg/l	< 20 % *	Median
Chloride	75,6 mg/L Cl	250 mg/l	30 %	Median
Coliform bacteria	Conforme MPN/100 mL	0/100 ml	—	Median
Colour	Incolore Scala Pt/C	accettabile per i consumatori, senza variazioni anomale	—	Median
Conductivity (25 °C)	998 µS/cm	2,500 µS/cm	—	Median
Iron	135,0 µg/L Fe	0.2 mg/l	—	Median
Manganese	3,23 µg/L Mn	50 µg/l	—	Median
Odour	0 Diluiz. 25	accettabile per i consumatori, senza variazioni anomale	—	Median
pH	7,33 pH	6,5–9,5	—	Median
Sodium	52,9 mg/L Na	200 mg/l	26 %	Median
Sulphate	95,4 mg/L SO4	250 mg/l	38 %	Median
Taste	0 tasso diluz.	accettabile per i consumatori, senza variazioni anomale	—	Median
Temperature	14,0 °C	—	—	Median
Total organic carbon (TOC)	0,56 mg/L C	senza variazioni anomale	—	Median
Turbidity	<0,5 NTU below limit of quantification	accettabile per i consumatori, senza variazioni anomale	—	Median

Treatment substances (1)

Treatment substances – ZONA 5 S. ANTONIO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Free chlorine	0,19 mg/L Cl2	—	—	Median

Further parameters (13)

Further parameters – ZONA 5 S. ANTONIO
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	336 mg/L CaCO3	—	—	Median
Beryllium	<0,2 µg/L Be below limit of quantification	—	—	Median
Bromide	<50 µg/L Br below limit of quantification	—	—	Median
Calcium	119,13 mg/L Ca	—	—	Median
Dry residue	756,6666667 mg/L	—	—	Median
Hydrogen carbonate	410 mg/L HCO3	—	—	Median
Magnesium	36,80 mg/L Mg	—	—	Median
Phosphate	83 µg/L P2O5	—	—	Median
Potassium	22,95 mg/L K	—	—	Median
Silicate / silicic acid	30,1 mg/L SiO2	—	—	Median
Thallium	<0,2 µg/L Tl below limit of quantification	—	—	Median
Total hardness	44,9 °F	—	—	Median
Vanadium	4,50 µg/L V	0.14 mg/l	—	Median

Source: https://www.aceaato2.a-acqua.it/content/dam/acea-ato2/pdf/it/mappe-qualita/capena_zona_5_s._antonio.pdf · luglio 2026 · luglio 2026 · 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).