Mayaguez Gas Turbines Power Plant – Emissions Trend
Mayaguez, PR · 2019–2024 · Parent: Puerto Rico Electric Power Authority
This page assembles 6 consecutive years of EPA Toxics Release Inventory Form R filings for Mayaguez Gas Turbines Power Plant, spanning 2019–2024. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.
Reported releases opened at 38 in 2019 and closed at 249 in 2024 – a increase of 552.4% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is Polycyclic aromatic compounds at 751, followed by Naphthalene at 0.
Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable, not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this electric utilities facility.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Mayaguez Gas Turbines Power Plant's total reported releases rose from 105 lb in 2022 to 162 lb in 2023, based on EPA TRI filings.
- Mayaguez Gas Turbines Power Plant's air releases rose from 105 lb in 2022 to 162 lb in 2023, based on EPA TRI filings.
Total Releases by Category
Year-over-Year Comparison
| Year | Total | Chemicals | YoY Change |
|---|---|---|---|
| 2019 | 38 lbs | 2 | - |
| 2020 | 113 lbs | 2 | +195.8% |
| 2021 | 83 lbs | 2 | -26.2% |
| 2022 | 105 lbs | 2 | +26.4% |
| 2023 | 162 lbs | 2 | +53.5% |
| 2024 | 249 lbs | 2 | +54.0% |
Top Chemicals by Year
| Chemical | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | Total |
|---|---|---|---|---|---|---|---|
| Polycyclic aromatic compounds | 38 | 113 | 83 | 105 | 162 | 249 | 751 |
| Naphthalene | - | - | - | - | - | - | 0 |
About This Data
Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.
A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.
Frequently Asked Questions
Is Mayaguez Gas Turbines Power Plant getting cleaner or dirtier? ▼
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Read our methodology - how this data is sourced, computed, and verified.