St. James Parish, LA
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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for St. James Parish in Louisiana · Population: 19,797
TRI sites such as Atlantic Alumina Gramercy Operations; Mosaic Phosphates Co Faustina Plant; Mosaic Fertilizer LLC Uncle Sam Plant; SDWIS systems such as ST JAMES WATER DISTRICT 2; ST JAMES WATER DISTRICT 1; TOWN OF LUTCHER WATERWORKS anchor St. James Parish, LA's EPA extract. Derived burden score 47/100 (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. James Parish include ST JAMES WATER DISTRICT 2; TOWN OF LUTCHER WATERWORKS; TOWN OF GRAMERCY WATERWORKS, while Atlantic Alumina Gramercy Operations leads reported TRI pounds among local Form R filers. AQS median AQI 32 / peak 108 in 2024.
Burden score 47/100 (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. James Parish -- 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. James Parish, LA: EPA TRI 2023 reporting year
Same facilities, both years
-9.1%
11 facilities that filed in 2022 and 2023
Whole inventory
-9.1%
2.2 million lb → 2.0 million lb, every facility that filed
- St. James Parish, LA's total reported releases fell from 2.2 million lb in 2022 to 2.0 million lb in 2023, based on EPA TRI filings.
- St. James Parish, LA's water releases fell from 87.3 thousand lb in 2022 to 56.3 thousand lb in 2023, based on EPA TRI filings.
- St. James Parish, LA's off-site transfers rose from 4.1 thousand lb in 2022 to 5.1 thousand lb in 2023, based on EPA TRI filings.
- St. James Parish, LA's chemicals reported fell from 40 in 2022 to 35 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 | 339 (93%) | 21 | 3 | 108 |
| 2023 | 314 (89%) | 35 | 2 | 115 |
| 2022 | 345 (96%) | 16 | 0 | 93 |
| 2021 | 326 (99%) | 4 | 0 | 58 |
| 2020 | 351 (98%) | 6 | 0 | 90 |
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 Louisiana, see the EPA's AirNow.gov.
Water Systems (4)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| ST JAMES WATER DISTRICT 2 | 7,513 | 14 |
| ST JAMES WATER DISTRICT 1 | 7,200 | 0 |
| TOWN OF LUTCHER WATERWORKS | 4,781 | 12 |
| TOWN OF GRAMERCY WATERWORKS | 2,860 | 11 |
TRI Facilities (12)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Atlantic Alumina Gramercy Operations | 5.9M lbs |
| 2 | Mosaic Phosphates Co Faustina Plant | 2.4M lbs |
| 3 | Mosaic Fertilizer LLC Uncle Sam Plant | 1.6M lbs |
| 4 | Convent Refinery | 1.2M lbs |
| 5 | Americas Styrenics LLC | 596.9K lbs |
| 6 | Koch Methanol St. James LLC | 311.1K lbs |
| 7 | Nucor Steel Louisiana LLC | 211.5K lbs |
| 8 | Occidental Chemical Holding Corp | 59.6K lbs |
| 9 | Air Products & Chemicals Inc. - Convent Smr | 31.0K lbs |
| 10 | Rain Cii Carbon LLC | 27.3K lbs |
| 11 | Millennium Galvanizing LLC | 6.8K lbs |
| 12 | Valero Donaldsonville Asphalt Terminal | 259 lbs |
Cities in St. James Parish (5)
Frequently Asked Questions
What is the environmental risk level in St. James Parish, Louisiana? ▼
Are there Superfund sites in St. James Parish? ▼
How many toxic release facilities are in St. James Parish? ▼
What is the air quality in St. James Parish? ▼
Is the drinking water safe in St. James Parish? ▼
What environmental agencies cover St. James Parish? ▼
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.