WaterVerge

Is Cuyon Pasto Vie, PR Tap Water Safe to Drink?

Graded B, with 8 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

515 residents served 1 water system PWSID: PR0004555
Overall Score
78.5 / 100
Violations
8 active
Last Updated
May 2026
Source
Groundwater
#14 of 101 in Puerto Rico Top 55% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
78.5/100
waterverge.com
B 78.5/100

Cuyon Pasto Vie, PR — Water Quality Report

Cuyon Pasto Vie's drinking water received a grade of B (78.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 515 residents using groundwater.

Lead levels were measured at 3.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 70 violations on record, including 0 health-based violations. 8 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Cuyon Pasto Vie's water

Cuyon Pasto Vie ranks #14 out of 101 cities in Puerto Rico for water quality, placing it above average in the state.

Cuyon Pasto Vie relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Cuyon Pasto Vie may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 30 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
78.5 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
29.5/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
19/20
A
Lead at 3.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Cuyon Pasto Vie, PR water safe to drink?

Concerns Identified

Cuyon Pasto Vie's drinking water has significant quality concerns based on EPA testing data. With a grade of B (78.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 515 residents using groundwater (wells).

8
Active Violations
3.0 ppb
Lead (90th %ile)

Recent water quality updates for Cuyon Pasto Vie

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Cuyon Pasto Vie's water quality assessment. Grade: B (78.5/100).

Violation
29 drinking water violations recorded

Contaminants: Endrin, Methoxychlor, Toxaphene.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Key contaminant findings

Based on the most recent EPA sampling data for Cuyon Pasto Vie's water supply.

Lead Within Limits
Detected: 3.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Cuyon Pasto Vie's water system has 70 total violations on record, including 0 health-based violations. 8 remain unresolved. 30 violations were issued in the last 5 years.

MROther
Most recent violations:
Oct 2022 Endrin Resolved
Oct 2022 Methoxychlor Resolved
Oct 2022 Toxaphene Resolved
Oct 2022 Dalapon Resolved
Oct 2022 Glyphosate Resolved

Where does Cuyon Pasto Vie's water come from?

Cuyon Pasto Vie's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 515 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Rio Guajataca (river), Lago Guajataca (lake), Canal De Derivacion (stream), Rio Camuy Nr Bayaney (river), Rio Grande De Arecibo (river).

What Cuyon Pasto Vie residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Cuyon Pasto Vie's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
3.0 ppb
EPA Action Level: 15 ppb · 20% of limit
Safe Level
Compliance Record

Violation summary

70
Total violations
0
Health-based
8
Active / unresolved
Oct 2022
Most recent violation
Compliance Record

Violations & advisories

70 Total
8 Active
0 Health-based
62 Resolved
Violations by category
Synthetic Organic Chemicals
40
Inorganic Chemicals
13
Consumer Confidence Rule
4
Lead and Copper Rule
3
Total Coliform Rule
3
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
Jul 2020 Active
Consumer Confidence Rule
Other Violation 0
Oct 2018 Active
Consumer Confidence Rule
Other Violation 0
Jan 2016 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2014 Active
Consumer Confidence Rule
Other Violation 0
Jul 2012 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jun 2000 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Oct 2022 Resolved
Endrin
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Methoxychlor
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Toxaphene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Dalapon
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Glyphosate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Di(2-ethylhexyl) adipate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
OXAMYL
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Picloram
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Dinoseb
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Hexachlorocyclopentadiene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Carbofuran
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Oct 2022 Resolved
Atrazine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Showing 20 of 70 violations

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 3.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 21.0 ppb from 1993 (24.0 ppb) to 2006 (3.0 ppb).
Contaminant Rankings

See how Cuyon Pasto Vie compares by contaminant

Explore where Cuyon Pasto Vie ranks among all Puerto Rico cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
515
Water Systems
1
Water Source

Where Cuyon Pasto Vie's water comes from

Groundwater

Cuyon Pasto Vie's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 515 people through 1 water system.

Local Hydrology

Water bodies near Cuyon Pasto Vie

Cuyon Pasto Vie is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Rio Guajataca
river
Lago Guajataca
lake
Canal De Derivacion
stream
Rio Camuy Nr Bayaney
river
Rio Grande De Arecibo
river
Infrastructure

Water systems serving Cuyon Pasto Vie

System Name PWSID Population Source
CUYON PR0004555 515 GW
Regional Comparison

How Cuyon Pasto Vie compares

Full Puerto Rico rankings →

Cuyon Pasto Vie's score of 78.5/100 is above the average of 38/100 among major Puerto Rico cities. It outscores 10 of 10 nearby cities.

Cuyon Pasto Vie (this city)
78.5
Bayamon
38.5
Bayamon
38.5
Bayamon
38.5
Ponce
34.9
Mayaguez
42.1
Puerto Rico avg
38
City Profile

About Cuyon Pasto Vie, PR

Wikipedia →

Aibonito is a small mountain town and municipality in Puerto Rico located in the Sierra de Cayey mountain range, north of Salinas; south of Barranquitas and Comerío; east of Coamo; and west of Cidra, and Cayey. Aibonito is spread over 8 barrios and Aibonito Pueblo. It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.

Economic Profile
$18,359
Median Income
$113,228
Median Home Value
$505/mo
Median Rent
8.2%
Unemployment
Community
43.3
Median Age
2,227
People / sq mi
69.2%
Homeownership
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Frequently asked questions

Is Cuyon Pasto Vie, PR tap water safe to drink?

Cuyon Pasto Vie's water quality earned a grade of B (78.5/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #14 out of 101 cities tested in Puerto Rico.

What contaminants are in Cuyon Pasto Vie's water?

Lead was measured at 3.0 ppb (90th percentile). 70 violations are on record.

How is Cuyon Pasto Vie's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Cuyon Pasto Vie?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Cuyon Pasto Vie's water come from?

Cuyon Pasto Vie's water is sourced from Groundwater. The city has 1 water system serving approximately 515 residents.

Is Cuyon Pasto Vie's groundwater at risk of contamination?

Cuyon Pasto Vie uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 70 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Cuyon Pasto Vie's water compare to other cities?

Cuyon Pasto Vie ranks #14 out of 101 cities in Puerto Rico (better than 86% of state cities) and #8681 out of 15744 cities nationally (45th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Cuyon Pasto Vie's small water system affect quality?

Cuyon Pasto Vie's system serves approximately 515 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 70 violations on record.