Is Aibonito, PR Tap Water Safe? Quality & Contaminants

What was found in Aibonito's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
PFOS	0.0467 µg/L No EPA limit set Main supplier: AIBONITO LA PLATA · 16,354 people · 2023	2/6	UCMR-5
Pfpea	0.0126 µg/L No EPA limit set Main supplier: AIBONITO LA PLATA · 16,354 people · 2023	1/6	UCMR-5
Pfhxa	0.0067 µg/L No EPA limit set Main supplier: AIBONITO LA PLATA · 16,354 people · 2023	1/6	UCMR-5
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: AIBONITO LA PLATA · 16,354 people · 2014	5/6	LCR
Pfba	0.0059 µg/L No EPA limit set Main supplier: AIBONITO LA PLATA · 16,354 people · 2023	1/6	UCMR-5
PFHXS	0.0048 µg/L No EPA limit set Main supplier: AIBONITO LA PLATA · 16,354 people · 2023	1/6	UCMR-5
PFBS	0.0032 µg/L No EPA limit set Main supplier: AIBONITO LA PLATA · 16,354 people · 2023	2/6	UCMR-5

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 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Aibonito

Supplier	Population served
AIBONITO LA PLATA	16,354
AIBONITO URBANO	5,580
BAXTER HEALTHCARE OF PR	981
CUYON	521
CUYON WATER SERVICES INC.	427
ACUEDUCTO COMUNITARIO ALGARROBO	200

Frequently asked questions about Aibonito tap water

Is Aibonito tap water safe to drink?

EPA testing detected 7 contaminants in the water serving Aibonito. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Aibonito?

6 public water suppliers report drinking-water monitoring for Aibonito, PR to the EPA. Each is listed above with its population served.

What contaminants are in Aibonito's water?

The contaminants EPA monitoring detected in Aibonito include PFOS, Pfpea, Pfhxa, Lead, Pfba. The full list, with the level at the main supplier and the data source, is in the table above.

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.