East Baton Rouge 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 East Baton Rouge Parish in Louisiana · Population: 452,821
TRI sites such as Exxonmobil Baton Rouge Chemical Plant (part); Exxonmobil Baton Rouge Refinery (part); Honeywell International Inc-Baton Rouge Plant; SDWIS systems such as ZACHARY WATER SYSTEM; CITY OF BAKER WATER SYSTEM; NORTHWEST WATERWORKS LIN PARK; NPL sites such as Capitol Lakes; Devil's Swamp Lake; Exide Baton Rouge anchor East Baton Rouge Parish, LA's EPA extract. Derived burden score 79/100 (High 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 East Baton Rouge Parish include CITY OF BAKER WATER SYSTEM; J E S T C; RIVERLANDS APARTMENTS, while Exxonmobil Baton Rouge Chemical Plant (part) leads reported TRI pounds among local Form R filers. AQS median AQI 51 / peak 154 in 2024.
Burden score 79/100 (High 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 East Baton Rouge 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 East Baton Rouge Parish, LA: EPA TRI 2023 reporting year
Same facilities, both years
-6.0%
25 facilities that filed in 2022 and 2023
Whole inventory
-6.0%
4.6 million lb → 4.3 million lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 5 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- East Baton Rouge Parish, LA's total reported releases fell from 4.6 million lb in 2022 to 4.3 million lb in 2023, based on EPA TRI filings.
- East Baton Rouge Parish, LA's off-site transfers fell from 645.0 thousand lb in 2022 to 300.8 thousand lb in 2023, based on EPA TRI filings.
- East Baton Rouge Parish, LA's water releases rose from 587.9 thousand lb in 2022 to 672.3 thousand lb in 2023, based on EPA TRI filings.
- East Baton Rouge Parish, LA's chemicals reported fell from 117 in 2022 to 113 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 | 179 (49%) | 180 | 6 | 154 |
| 2023 | 149 (41%) | 208 | 8 | 147 |
| 2022 | 205 (56%) | 157 | 3 | 141 |
| 2021 | 217 (59%) | 145 | 2 | 159 |
| 2020 | 236 (64%) | 127 | 3 | 119 |
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 (9)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| ZACHARY WATER SYSTEM | 31,569 | 0 |
| CITY OF BAKER WATER SYSTEM | 13,855 | 5 |
| NORTHWEST WATERWORKS LIN PARK | 513 | 0 |
| NORTHWEST WATERWORKS LAKEWOOD VILLAGE | 423 | 0 |
| CYPRESS VILLAGE MHP WATER SYSTEM | 396 | 0 |
| J E S T C | 300 | 1 |
| CHAPMAN APARTMENTS | 80 | 0 |
| HILLCREST / SNEAD APARTMENTS | 60 | 0 |
| RIVERLANDS APARTMENTS | 54 | 1 |
TRI Facilities (34)
Superfund Sites (4)
| Site Name | Status | HRS Score |
|---|---|---|
| Capitol Lakes | NPL Site | 50.00 |
| Devil's Swamp Lake | Proposed NPL Site | 50.00 |
| Exide Baton Rouge | NPL Site | 50.00 |
| Petro-Processors of Louisiana, Inc. | NPL Site | 41.44 |
Cities in East Baton Rouge Parish (4)
Frequently Asked Questions
What is the environmental risk level in East Baton Rouge Parish, Louisiana? ▼
Are there Superfund sites in East Baton Rouge Parish? ▼
How many toxic release facilities are in East Baton Rouge Parish? ▼
What is the air quality in East Baton Rouge Parish? ▼
Is the drinking water safe in East Baton Rouge Parish? ▼
What environmental agencies cover East Baton Rouge 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.