Jackson, MS
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 Jackson in Mississippi · Population: 144,437
TRI sites such as Chevron Products Co Pascagoula Refinery; Mississippi Power Co - Plant Daniel; Azz Galvanizing Services-Moss Point; SDWIS systems such as CITY OF PASCAGOULA; CITY OF GAUTIER; CITY OF MOSS POINT; NPL sites such as Mississippi Phosphates Corporation anchor Jackson, MS's EPA extract. Derived burden score 59/100 (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 Jackson include CITY OF MOSS POINT; JACKSON CO UTILITY AUTHORITY-EAST; JACKSON CO UTILITY AUTHORITY-WEST, while Chevron Products Co Pascagoula Refinery leads reported TRI pounds among local Form R filers. AQS median AQI 44 / peak 97 in 2024.
Burden score 59/100 (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 Jackson -- 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 Jackson, MS: EPA TRI 2023 reporting year
Same facilities, both years
+36.3%
12 facilities that filed in 2022 and 2023
Whole inventory
+36.3%
2.0 million lb → 2.8 million 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.
- Jackson, MS's total reported releases rose from 2.0 million lb in 2022 to 2.8 million lb in 2023, based on EPA TRI filings.
- Jackson, MS's water releases rose from 876.1 thousand lb in 2022 to 1.5 million lb in 2023, based on EPA TRI filings.
- Jackson, MS's off-site transfers rose from 122.3 thousand lb in 2022 to 195.0 thousand lb in 2023, based on EPA TRI filings.
- Jackson, MS's land releases fell from 118.1 thousand lb in 2022 to 67.0 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 | 236 (65%) | 127 | 0 | 97 |
| 2023 | 176 (48%) | 186 | 2 | 108 |
| 2022 | 243 (67%) | 121 | 1 | 101 |
| 2021 | 242 (67%) | 117 | 0 | 84 |
| 2020 | 204 (57%) | 152 | 0 | 84 |
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 Mississippi, see the EPA's AirNow.gov.
Water Systems (7)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF PASCAGOULA | 22,686 | 0 |
| CITY OF GAUTIER | 22,253 | 0 |
| CITY OF MOSS POINT | 12,524 | 4 |
| JACKSON CO UTILITY AUTHORITY-EAST | 6,270 | 3 |
| JACKSON CO UTILITY AUTHORITY-WEST | 6,178 | 3 |
| COLONIAL ESTATES # 3 | 140 | 2 |
| JACKSON CO UTILITY AUTHORITY-HELENA PARK | 108 | 3 |
TRI Facilities (14)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Chevron Products Co Pascagoula Refinery | 7.4M lbs |
| 2 | Mississippi Power Co - Plant Daniel | 1.3M lbs |
| 3 | Azz Galvanizing Services-Moss Point | 1.2M lbs |
| 4 | Ingalls Shipbuilding Pascagoula Operations | 757.2K lbs |
| 5 | Omega Protein Inc Moss Point | 138.8K lbs |
| 6 | B & D Plastics | 136.6K lbs |
| 7 | First Chemical Corp | 120.7K lbs |
| 8 | Enterprise Gas Processing LLC Pascagoula Gas Processing Pla | 114.9K lbs |
| 9 | Bollinger Mississippi Shipbuilding LLC | 101.0K lbs |
| 10 | Bollinger Mississippi Repair LLC | 46.4K lbs |
| 11 | Rolls-Royce Naval Marine Inc | 44.7K lbs |
| 12 | Airgas Specialty Products - Moss Point Ms | 11.9K lbs |
| 13 | Bayou Concrete LLC - Ocean Springs | 2 lbs |
| 14 | Mmc Materials Gulf Coast LLC - Pascagoula | 2 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Mississippi Phosphates Corporation | NPL Site | 50.00 |
Cities in Jackson (4)
Frequently Asked Questions
What is the environmental risk level in Jackson, Mississippi? ▼
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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.