St. Thomas Island, VI
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 St. Thomas Island in U.S. Virgin Islands
TRI sites such as Saint Thomas Bulk Terminal; Virgin Islands Water & Power Authority; Heavy Materials Svi - St Thomas; SDWIS systems such as Bovoni Housing Project I and II; Sapphire Vill.condos (West); Burnett Towers; NPL sites such as Tutu Wellfield anchor St. Thomas Island, VI's EPA extract. Derived burden score 32/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in St. Thomas Island include Bovoni Housing Project I and II; Sapphire Vill.condos (West); Burnett Towers, while Saint Thomas Bulk Terminal leads reported TRI pounds among local Form R filers. AQS median AQI 31 / peak 75 in 2020.
Burden score 32/100 (Moderate 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 St. Thomas Island -- 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 St. Thomas Island, VI: EPA TRI 2023 reporting year
Same facilities, both years
-49.6%
3 facilities that filed in 2022 and 2023
Whole inventory
-49.6%
2.9 thousand lb → 1.5 thousand lb, every facility that filed
- St. Thomas Island, VI's total reported releases fell from 2.9 thousand lb in 2022 to 1.5 thousand lb in 2023, based on EPA TRI filings.
- St. Thomas Island, VI's off-site transfers rose from 0 lb in 2022 to 918 lb in 2023, based on EPA TRI filings.
- St. Thomas Island, VI's air releases fell from 2.5 thousand lb in 2022 to 246 lb in 2023, based on EPA TRI filings.
- St. Thomas Island, VI's water releases fell from 400 lb in 2022 to 296 lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2020)
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 |
|---|---|---|---|---|
| 2020 | 58 (77%) | 17 | 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 U.S. Virgin Islands, see the EPA's AirNow.gov.
Water Systems (3)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| Bovoni Housing Project I and II | 960 | 1 |
| Sapphire Vill.condos (West) | 225 | 1 |
| Burnett Towers | 100 | 1 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Saint Thomas Bulk Terminal | 10.2K lbs |
| 2 | Virgin Islands Water & Power Authority | 2.4K lbs |
| 3 | Heavy Materials Svi - St Thomas | 2 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Tutu Wellfield | NPL Site | 50.00 |
Cities in St. Thomas Island (5)
Frequently Asked Questions
What is the environmental risk level in St. Thomas Island, U.S. Virgin Islands? ▼
Are there Superfund sites in St. Thomas Island? ▼
How many toxic release facilities are in St. Thomas Island? ▼
What is the air quality in St. Thomas Island? ▼
Is the drinking water safe in St. Thomas Island? ▼
What environmental agencies cover St. Thomas Island? ▼
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.