Water Quality Report · Updated October 07, 2026
EL YUNQUE
EL YUNQUE delivers tap water graded A (85/100) by TapWaterSafety.org. The utility serves approximately 68,024 residents in RIO GRANDE, PR using surface water. For questions, the utility can be reached at 787-620-2277.
Is RIO GRANDE tap water safe to drink?
EL YUNQUE delivers tap water that earns a grade of A (85/100) from TapWaterSafety.org — an excellent rating reflecting minimal contamination and full compliance with health guidelines.
The utility serves 68,024 residents in RIO GRANDE, 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 EL YUNQUE (system ID PR0005296) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Required treatment not met | 05/01/2025 | Open |
| Surface Water Treatment Rule | Missed testing or reporting | 11/01/2024 | Open |
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 RIO GRANDE residents
Contact EL YUNQUE
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for RIO GRANDE
Filters matched to the specific contaminants in this water supply.
Carbon block filter certified to NSF/ANSI 42 + 53
$180-$599A certified carbon block filter handles most baseline water quality concerns.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 85/100 breaks down across five weighted components. Read the full methodology →
EL YUNQUE service area
This water system serves 1 community in Rio Grande Municipio County, PR. Click any city for its dedicated tap water quality page.
Find the right filter for RIO GRANDE water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.