Is the tap water in LAS PIEDRAS, PR safe to drink?

LAS PIEDRAS's tap water receives a grade of A (97/100) from TapWaterSafety.org. No major concerns are flagged in current data. Grades are based on EPA SDWIS, EPA ECHO, EWG Tap Water Database, and the utility's published Consumer Confidence Report.

What contaminants are in LAS PIEDRAS tap water?

Public data sources identify the following contaminants in LAS PIEDRAS's water supply: . Levels and comparison to EWG health guidelines are listed on the full city page.

Which water utility serves LAS PIEDRAS?

LAS PIEDRAS is served by RIO BLANCO,VIEQUES,CULEDRA. RIO BLANCO,VIEQUES,CULEDRA serves approximately 80,759 residents.

Tap Water Quality Report

Tap water quality in LAS PIEDRAS, PR

Served by RIO BLANCO,VIEQUES,CULEDRA. 80,759 residents.

Average score 97/100

Utilities 1

Population 80,759

97/100

Excellent

ⓘ How did we get this rating?

Quick answer

Tap water in LAS PIEDRAS, PR receives a grade of A (97/100) from TapWaterSafety.org. It's served by RIO BLANCO,VIEQUES,CULEDRA. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.

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

EPA compliance record

Official U.S. EPA records for RIO BLANCO,VIEQUES,CULEDRA (system ID PR0005386) 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

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

Recommended filters for LAS PIEDRAS

Filters matched to the specific contaminants in LAS PIEDRAS's 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

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AquaTru Countertop Reverse Osmosis

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

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

Treatment plant contact info

For service issues, water quality concerns, or to request a Consumer Confidence Report from RIO BLANCO,VIEQUES,CULEDRA.

General Contact

AddressCARR. 31 KM. 9.9, NAGUABO, PR 00718

Main phone787-620-2277

Treatment Plant

FacilityRIO BLANCO RIVER

ZIP codes served

LAS PIEDRAS's public water systems serve the following ZIP codes:

00718

00765

00771