Guaynabo 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 Guaynabo Municipio in Puerto Rico · Population: 89,503
TRI sites such as Best Petroleum Corp Bulk Terminal; Pan American Grain Manufacturing; Super Asphalt Guaynabo Plant; SDWIS systems such as US ARMY, FORT BUCHANAN anchor Guaynabo Municipio, PR's EPA extract. Derived burden score 26/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Best Petroleum Corp Bulk Terminal; Pan American Grain Manufacturing; Super Asphalt Guaynabo Plant are among the largest Form R filers reporting in Guaynabo Municipio; no SDWIS system here carries an active health-based flag. AQS median AQI 31 / peak 81 in 2024.
Burden score 26/100 (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 Guaynabo 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 Guaynabo Municipio, PR: EPA TRI 2023 reporting year
Same facilities, both years
+20.1%
7 facilities that filed in 2022 and 2023
Whole inventory
+82.0%
22.0 thousand lb → 40.1 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Guaynabo Municipio, PR's total reported releases rose from 22.0 thousand lb in 2022 to 26.4 thousand lb in 2023, based on EPA TRI filings.
- Guaynabo Municipio, PR's air releases rose from 22.0 thousand lb in 2022 to 26.4 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 | 91 (79%) | 24 | 0 | 81 |
| 2023 | 82 (77%) | 25 | 0 | 74 |
| 2022 | 81 (86%) | 13 | 0 | 80 |
| 2021 | 86 (72%) | 33 | 0 | 77 |
| 2020 | 68 (82%) | 15 | 0 | 75 |
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.
Water Systems (1)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| US ARMY, FORT BUCHANAN | 6,411 | 0 |
TRI Facilities (8)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Best Petroleum Corp Bulk Terminal | 55.8K lbs |
| 2 | Pan American Grain Manufacturing | 35.2K lbs |
| 3 | Super Asphalt Guaynabo Plant | 27.7K lbs |
| 4 | Puerto Rico Energy LLC - Guaynabo 2 Terminal | 26.2K lbs |
| 5 | Total Guaynabo Bulk Terminal | 7.8K lbs |
| 6 | Petroleum Products Supply LLC | 2.3K lbs |
| 7 | Molinos de Puerto Rico | 10 lbs |
| 8 | Westrock-Puerto Rico Inc | 0 lbs |
Cities in Guaynabo Municipio (1)
Frequently Asked Questions
What is the environmental risk level in Guaynabo Municipio, Puerto Rico? ▼
Are there Superfund sites in Guaynabo Municipio? ▼
How many toxic release facilities are in Guaynabo Municipio? ▼
What is the air quality in Guaynabo Municipio? ▼
Is the drinking water safe in Guaynabo Municipio? ▼
What environmental agencies cover Guaynabo Municipio? ▼
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.