Water Quality Report · Updated October 07, 2026

MAYAGUEZ

Serving 151,555 residents in MAYAGUEZ, PR and 1 other communities.

National rank 100th percentile

PR rank 88th percentile

Data confidence Low

97/100

Excellent

ⓘ How did we get this rating?

Quick answer

MAYAGUEZ delivers tap water graded A (97/100) by TapWaterSafety.org. The utility serves approximately 151,555 residents in MAYAGUEZ, PR using surface water. For questions, the utility can be reached at 787-620-2277.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?

151,555

People served

Cities served

Contaminants detected

Above health guidelines

Quarters with EPA violations (3 yr)

Is MAYAGUEZ tap water safe to drink?

MAYAGUEZ delivers tap water that earns a grade of A (97/100) from TapWaterSafety.org — an excellent rating reflecting minimal contamination and full compliance with health guidelines.

The utility serves 151,555 residents in MAYAGUEZ and 1 other community, drawing from surface water.

Detected contaminants are below EWG's health-based guidelines. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.

EPA compliance record

Official U.S. EPA records for MAYAGUEZ (system ID PR0003283) for the last 3 years. Checked 2026-10-07.

No EPA violations in the last 3 years.

0 of 12quarters with a violation

Nolead above EPA action level

07/31/2024last state inspection

Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.

Quick actions for MAYAGUEZ residents

📞 Call the utility 787-620-2277 🧪 Get your water tested EPA-certified labs

Contact MAYAGUEZ

Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.

General Contact

AddressCARR. 108 KM. 2 HM. 8, MAYAGUEZ, PR 00680

Main phone787-620-2277

Treatment Plant

FacilityLAVADERO 2 →

Recommended water filters for MAYAGUEZ

Filters matched to the specific contaminants in this water supply.

Carbon block filter certified to NSF/ANSI 42 + 53

$180-$599

A certified carbon block filter handles most baseline water quality concerns.

Aquasana AQ-5300 Under-Sink Filter

$180-$240 NSF 42, 53, 401, 372

Editorial pick · affiliate link coming soon

AquaTru Countertop Reverse Osmosis

$449-$599 NSF 42, 53, 58, 401, 372

Editorial pick · affiliate link coming soon

Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.