Coamo Water Quality
Puerto Rico
According to EPA SDWIS, Coamo, Puerto Rico is served by 5 community water systems covering about 5,743 people. The same extract lists 20 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Coamo, Puerto Rico is delivered through 5 EPA-regulated community water systems serving an estimated 5,743 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 20 violation records across the 5 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, TTHM, Revised Total Coliform Rule, Coliform (TCR), Surface Water Treatment Rule. 1 TRI-reporting industrial facility is also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Puerto Rico drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| COAMO URBANO | 4,603 | 2 | Health |
| COAMO ARRIBA | 420 | 11 | Health |
| COMUNIDAD MONTERIA | 360 | 1 | Health |
| ASOCIACION RESIDENTE SAN DIEGO | 270 | 4 | Health |
| LA CUESTA | 90 | 2 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| ASOCIACION RESIDENTE SAN DIEGO | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| LA CUESTA | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| COAMO ARRIBA | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| COMUNIDAD MONTERIA | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| COAMO URBANO | TTHM | 2017-01-01 |
| COAMO URBANO | TTHM | 2017-01-01 |
| COAMO ARRIBA | Revised Total Coliform Rule | 2016-05-01 |
| ASOCIACION RESIDENTE SAN DIEGO | Coliform (TCR) | 2016-03-01 |
| COAMO ARRIBA | Coliform (TCR) | 2016-02-01 |
| ASOCIACION RESIDENTE SAN DIEGO | Coliform (TCR) | 2015-10-01 |
| COAMO ARRIBA | Coliform (TCR) | 2015-07-01 |
| ASOCIACION RESIDENTE SAN DIEGO | Coliform (TCR) | 2015-04-01 |
| COAMO ARRIBA | Coliform (TCR) | 2014-11-01 |
| COAMO ARRIBA | Coliform (TCR) | 2014-02-01 |
| COAMO ARRIBA | Coliform (TCR) | 2013-04-01 |
| COAMO ARRIBA | Coliform (TCR) | 2011-04-01 |
| COAMO ARRIBA | Coliform (TCR) | 2010-12-01 |
| LA CUESTA | Surface Water Treatment Rule | 2007-01-01 |
| COAMO ARRIBA | Surface Water Treatment Rule | 2007-01-01 |
| COAMO ARRIBA | Surface Water Treatment Rule | 1992-01-01 |
What are Coamo's health-based records for?
Coamo's health-based violation records carry 5 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Coliform (TCR) | 10 | 2 |
| Lead and Copper Rule Revisions | 4 | 4 |
| Surface Water Treatment Rule | 3 | 2 |
| Tthm | 2 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
TRI Facilities in Coamo
| Facility | Total Releases |
|---|---|
| Eaton Intelligent Power Ltd. | 176 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Coamo, Puerto Rico? ▼
How many water violations does Coamo have in this EPA extract? ▼
What contaminants were found in Coamo water? ▼
How many water systems serve Coamo? ▼
Where does Coamo get its drinking water? ▼
Are there pollution sources near Coamo? ▼
How does Coamo compare in Puerto Rico?
Of the 69 Puerto Rico places with at least one community water system on file, Coamo ranks #27 by number of systems (5).
Either side of it: Aibonito (5), Ciales (5), Comerio (5), Lares (5)
About This Data
Figures here are the current EPA SDWIS extract joined to the 5 community water systems whose service area lists Coamo, ranked against the 69 Puerto Rico places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.