Is Moca, PR Tap Water Safe? Quality & Contaminants

What was found in Moca'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
Lithium	23.72 µg/L No EPA limit set Main supplier: AGUADILLA · 124,782 people · 2025	1/4	UCMR-5
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: AGUADILLA · 124,782 people · 2015 Highest in the city: 0.0090 mg/L — PLATA I Y II · 3,978 people · 2011	3/4	LCR
Pfpea	0.0067 µg/L No EPA limit set Main supplier: AGUADILLA · 124,782 people · 2025	1/4	UCMR-5
Pfba	0.0057 µg/L No EPA limit set Main supplier: AGUADILLA · 124,782 people · 2025	1/4	UCMR-5
PFOS	0.0053 µg/L No EPA limit set Main supplier: AGUADILLA · 124,782 people · 2025	1/4	UCMR-5
PFBS	0.0052 µg/L No EPA limit set Main supplier: AGUADILLA · 124,782 people · 2025	1/4	UCMR-5
Pfhxa	0.0047 µg/L No EPA limit set Main supplier: AGUADILLA · 124,782 people · 2025	1/4	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 Moca

Supplier	Population served
AGUADILLA	124,782
PLATA I Y II	3,978
ACUEDUCTO COMUNAL SONADOR INC.	600
HUMATAS DEEP WATER	174

Frequently asked questions about Moca tap water

Is Moca tap water safe to drink?

EPA testing detected 7 contaminants in the water serving Moca. 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 Moca?

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

What contaminants are in Moca's water?

The contaminants EPA monitoring detected in Moca include Lithium, Lead, Pfpea, Pfba, PFOS. 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.