Rio Blanco, Vieques, Culedra
PWSID: PR0005386
This system has unresolved violations related to monitoring, reporting, or procedural requirements, but none involve contaminant levels exceeding EPA health limits.
This system has more violations on record than 93% of water systems in Puerto Rico.
Violation trend: 1.2 per year over the last 5 years, down from 21.6 per year in the previous 5.
System Details
| Population Served | 80,759 |
| Service Connections | 30,247 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Naguabo |
| EPA ZIP on File | 00718 |
Areas Served
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0060 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 5000 | MR | 1992-07-01 | Open |
Violation History (161 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2950 | MCL Measured: 0.0830 MG/L | 2023-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0820 MG/L | 2023-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0820 MG/L | 2023-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0820 MG/L | 2023-07-01 | Yes | Acknowledged |
| 0300 | TT | 2021-06-01 | Yes | Returned to Compliance |
| 0300 | TT | 2021-06-01 | Yes | Returned to Compliance |
| 7000 | Other | 2020-07-01 | Returned to Compliance | |
| 7000 | Other | 2020-07-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0910 MG/L (limit: 0.0800 MG/L) | 2020-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0910 MG/L (limit: 0.0800 MG/L) | 2020-07-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2020-07-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2020-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1010 MG/L (limit: 0.0800 MG/L) | 2020-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1010 MG/L (limit: 0.0800 MG/L) | 2020-04-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2020-04-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2020-04-01 | Yes | Returned to Compliance |
| 0300 | TT | 2020-03-01 | Yes | Returned to Compliance |
| 0300 | TT | 2020-03-01 | Yes | Returned to Compliance |
| 0200 | MR | 2020-02-01 | Returned to Compliance | |
| 0200 | MR | 2020-02-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0950 MG/L (limit: 0.0800 MG/L) | 2020-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0950 MG/L (limit: 0.0800 MG/L) | 2020-01-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0610 MG/L (limit: 0.0600 MG/L) | 2020-01-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0610 MG/L (limit: 0.0600 MG/L) | 2020-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0900 MG/L (limit: 0.0800 MG/L) | 2019-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0900 MG/L (limit: 0.0800 MG/L) | 2019-10-01 | Yes | Returned to Compliance |
| 0300 | TT | 2019-07-01 | Yes | Returned to Compliance |
| 0300 | TT | 2019-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0850 MG/L (limit: 0.0800 MG/L) | 2019-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0850 MG/L (limit: 0.0800 MG/L) | 2019-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0810 MG/L | 2019-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0810 MG/L | 2019-01-01 | Yes | Returned to Compliance |
| 2005 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2005 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2010 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2010 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2015 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2015 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2020 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2020 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2037 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2037 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2042 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2042 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2051 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2051 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2065 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2065 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2067 | MR | 2019-01-01 | Major | Returned to Compliance |
| 2067 | MR | 2019-01-01 | Major | Returned to Compliance |
Showing 50 of 160 historical violations.
Understanding This Water System's Record
Rio Blanco, Vieques, Culedra is a community water system water system that draws from surface water sources and serves a population of 80,759 in Naguabo, Puerto Rico. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.
What Do These Violations Mean?
Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.
What Should You Do?
Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.