Mayaguez Municipio, PR
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Mayaguez Municipio in Puerto Rico
TRI sites such as Compania Cervecera de Puerto Rico Inc.; Mayaguez Gas Turbines Power Plant anchor Mayaguez Municipio, PR's EPA extract. Derived burden score 16/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Compania Cervecera de Puerto Rico Inc.; Mayaguez Gas Turbines Power Plant are among the largest Form R filers reporting in Mayaguez Municipio; no SDWIS system here carries an active health-based flag. AQS median AQI 11 / peak 39 in 2024.
Burden score 16/100 (Low Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Mayaguez Municipio -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Mayaguez Municipio, PR: EPA TRI 2023 reporting year
Same facilities, both years
-16.6%
2 facilities that filed in 2022 and 2023
Whole inventory
-16.6%
3.2 thousand lb → 2.7 thousand lb, every facility that filed
- Mayaguez Municipio, PR's total reported releases fell from 3.2 thousand lb in 2022 to 2.7 thousand lb in 2023, based on EPA TRI filings.
- Mayaguez Municipio, PR's air releases rose from 110 lb in 2022 to 167 lb in 2023, based on EPA TRI filings.
- Mayaguez Municipio, PR's off-site transfers fell from 3.1 thousand lb in 2022 to 2.5 thousand lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 341 (100%) | 0 | 0 | 39 |
| 2023 | 254 (89%) | 31 | 0 | 64 |
| 2022 | 235 (73%) | 81 | 4 | 155 |
| 2021 | 231 (69%) | 101 | 2 | 142 |
| 2020 | 266 (83%) | 49 | 1 | 396 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Puerto Rico, see the EPA's AirNow.gov.
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Compania Cervecera de Puerto Rico Inc. | 52.7K lbs |
| 2 | Mayaguez Gas Turbines Power Plant | 502 lbs |
Cities in Mayaguez Municipio (1)
Frequently Asked Questions
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.