TRI Facilities
121
EPCRA Section 313 reporters
2023 EPA TRI data 121 facilities 402 water systems
Puerto Rico Environmental Profile
According to the U.S. Environmental Protection Agency's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List, this is Puerto Rico's (PR) full public environmental-compliance record - toxic releases, drinking-water systems, and Superfund sites in one place.
PR regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
Clean Water Act, NPDES (water-system health violations)
324 records
- RCRA · Subtitle C 26
RCRA Subtitle C (Superfund-site proxy)
26 records
What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.
Water Systems
402
SDWIS regulated
Superfund Sites
26
18 active NPL
Total Releases
25.4M lbs
TRI cumulative disclosure
Compliance Snapshot - PR
Sites with no recorded health violations 38.0%
Sites with at least one open violation 62.0%
Puerto Rico consolidates three federal EPA datasets into one statewide environmental profile: 121 Toxics Release Inventory (TRI) facilities reporting under EPCRA Section 313, 402 community water systems regulated under the Safe Drinking Water Act, and 26 sites on the Superfund National Priorities List.
TRI facilities in PR have cumulatively disclosed 25.4M lbs of toxic chemical releases, while SDWIS records show 2,826 total violations across the state's regulated water systems, of which 324 systems carry an active health-based violation (MCL exceedance or treatment-technique failure). Activity clusters in counties such as Ponce Municipio, Caguas Municipio, San Lorenzo Municipio, which account for the highest combined facility, water-system, and Superfund presence.
Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.
What does this state's environmental record show?
TRI Facilities
121
Water Systems
402
Superfund Sites
26
Total Violations
2,826
Total Releases
25.4M lbs
Health Violations
324
water systems
Largest Polluters
View all →Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| METROPOLITANO | 1,077,332 | 278 |
| PONCE URBANO | 111,926 | 107 |
| AGUADILLA | 123,885 | 101 |
| LUQUILLO URBANO | 8,880 | 94 |
| COTTO LAUREL | 13,860 | 92 |
| COMERIO URBANO | 14,872 | 84 |
| GUAYAMA URBANO | 36,606 | 65 |
| CUBUY MAIZALES | 617 | 56 |
| REGIONAL VILLALBA TOA VACA | 33,711 | 49 |
| CABO ROJO | 20,749 | 48 |
| LAS BOCAS | 10,998 | 47 |
| MAYAGUEZ | 151,555 | 46 |
| JAYUYA URBANO | 7,644 | 45 |
| OROCOVIS URBANO | 16,869 | 45 |
| EL YUNQUE | 68,024 | 44 |
| LAGO GUAJATACA | 11,187 | 42 |
| SABANA GRANDE | 25,229 | 39 |
| SAN SEBASTIAN | 24,449 | 36 |
| JUNCOS - CEIBA SUR | 36,277 | 33 |
| GUAYABOTA | 1,028 | 30 |
Cities with Water Issues
Salinas
Pop: -
Aguadilla
Pop: -
Anasco
Pop: -
Arecibo
Pop: -
Bayamon
Pop: -
Penuelas
Pop: -
Caguas
Pop: -
Carolina
Pop: -
Canovanas
Pop: -
Cidra
Pop: -
Coamo
Pop: -
Guayama
Pop: -
Guayanilla
Pop: -
Hatillo
Pop: -
Jayuya
Pop: -
Mayaguez
Pop: -
Vega Baja
Pop: -
Manati
Pop: -
Aibonito
Pop: -
Maricao
Pop: -
Superfund Sites (26)
Counties (104 total)
Showing top 20 counties by environmental activity. Puerto Rico has 104 counties total.
Largest Cities
Salinas
Pop: -
4 facilities · 3 water systems
Aguadilla
Pop: -
3 facilities · 3 water systems
Anasco
Pop: -
1 facilities · 3 water systems
Arecibo
Pop: -
5 facilities · 12 water systems
Barceloneta
Pop: -
5 facilities · 1 water systems
Bayamon
Pop: -
7 facilities · 1 water systems
Penuelas
Pop: -
4 facilities · 9 water systems
Caguas
Pop: -
3 facilities · 22 water systems
Carolina
Pop: -
6 facilities · 2 water systems
Canovanas
Pop: -
2 facilities · 3 water systems
Catano
Pop: -
3 facilities · 0 water systems
Cidra
Pop: -
2 facilities · 4 water systems
Coamo
Pop: -
1 facilities · 5 water systems
Guayama
Pop: -
3 facilities · 4 water systems
Guayanilla
Pop: -
3 facilities · 7 water systems
Hatillo
Pop: -
2 facilities · 2 water systems
Humacao
Pop: -
7 facilities · 1 water systems
Jayuya
Pop: -
1 facilities · 12 water systems
Mayaguez
Pop: -
2 facilities · 3 water systems
Vega Alta
Pop: -
1 facilities · 0 water systems
Frequently Asked Questions
How many polluting facilities are in Puerto Rico? ▼
Puerto Rico has 121 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 25.4M lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Puerto Rico have Superfund sites? ▼
Yes, Puerto Rico has 26 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
Is the water safe in Puerto Rico? ▼
Puerto Rico has 402 EPA-regulated water systems. 324 water systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental data is available for Puerto Rico? ▼
PlainEnviro provides three categories of EPA environmental data for Puerto Rico: Toxic Release Inventory (TRI) data covering 121 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 402 water systems, and Superfund National Priorities List (NPL) data for 26 contaminated sites.
How does Puerto Rico compare to other states environmentally? ▼
Puerto Rico has 121 TRI facilities with 25.4M lbs in total releases, 26 Superfund sites, and 2,826 water system violations on record. State-level environmental comparisons depend on many factors including industrial activity, population, and geographic size. Source: EPA TRI, SDWIS, and Superfund NPL databases.
Explore More Data for Puerto Rico
TRI Facilities in Puerto Rico →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Puerto Rico →
Community water systems and their violation records
Air Quality in Puerto Rico →
County-level AQI from EPA monitoring stations
Compare states by burden →
EJ screening scores for every U.S. county
State environmental rankings →
How states compare on releases, water and Superfund
Browse all states →
Environmental profiles for every U.S. state
About This Data
This page aggregates environmental data from three EPA programs for Puerto Rico: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.
PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.
What to do with Puerto Rico's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 121 TRI facilities reporting in Puerto Rico for the largest reported releases near a specific county. View facilities
- 324 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Puerto Rico compares to other states on releases, water violations, and Superfund sites. State rankings
Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial
According to the U.S. Environmental Protection Agency, this state profile is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities, the Safe Drinking Water Information System, and the Superfund National Priorities List, compiled since federal reporting began under the Emergency Planning and Community Right-to-Know Act in October 1986; see our methodology for full source citations and refresh cadence.
Every figure on PlainEnviro is rendered directly from EPA environmental compliance data, no number is typed in by an editor. State environmental figures are computed directly from EPA data. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.