Tap WaterIndex

Tap water quality report

Arecibo Urbano

EPA monitoring tested this supplier for 31 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

31
contaminants tested
3
detected
61,626
people served
87
health-based violations
Water source
Surface water
Ownership
Local government
Counties served
Arecibo Municipio

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

87
health-based violations
943
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2022-08-01 → 2022-08-31
TT Health-based Resolved 2022-08-01 → 2022-08-31
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
TT Health-based Resolved 2010-09-01 → 2010-09-30
TT Health-based Resolved 2010-09-01 → 2010-09-30
TT Health-based Resolved 2010-09-01 → 2010-09-30
TT Health-based Resolved 2009-10-01 → 2009-10-31
TT Health-based Resolved 2009-10-01 → 2009-10-31
TT Health-based Resolved 2009-10-01 → 2009-10-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
6:2 Fts 0.0086 µg/L 2/44 2025
PFOS 0.0044 µg/L 1/44 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 32/32 LCR 2016
28 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPfpeaPfpesPftaPftrdaPfunaLithium

Frequently asked questions about Arecibo Urbano

Is Arecibo Urbano tap water safe to drink?

EPA monitoring detected 3 contaminants in Arecibo Urbano's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Arecibo Urbano's water?

EPA monitoring detected Lead, 6:2 Fts, PFOS. The full list with the level and data source for each is above.

How many people does Arecibo Urbano serve?

Arecibo Urbano reports serving 61,626 people, per its EPA record.

Has Arecibo Urbano had any water quality violations?

The EPA has 943 violations on file for Arecibo Urbano, of which 87 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.