Lafourche 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.
Environmental data for Lafourche Parish in Louisiana · Population: 96,670
TRI sites such as Bollinger Fourchon North; Martin Terminal South Yard; North American Shipbuilding Llc-Larose Shipyard; SDWIS systems such as LAFOURCHE WATER DISTRICT 1 anchor Lafourche Parish, LA's EPA extract. Derived burden score 35/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Bollinger Fourchon North; Martin Terminal South Yard; North American Shipbuilding Llc-Larose Shipyard are among the largest Form R filers reporting in Lafourche Parish; no SDWIS system here carries an active health-based flag. AQS median AQI 48 / peak 115 in 2024.
Burden score 35/100 (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 Lafourche 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 Lafourche Parish, LA: EPA TRI 2023 reporting year
Same facilities, both years
-13.5%
14 facilities that filed in 2022 and 2023
Whole inventory
-13.4%
108.7 thousand lb → 94.1 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.
- Lafourche Parish, LA's total reported releases fell from 108.7 thousand lb in 2022 to 94.1 thousand lb in 2023, based on EPA TRI filings.
- Lafourche Parish, LA's off-site transfers rose from 5.7 thousand lb in 2022 to 8.6 thousand lb in 2023, based on EPA TRI filings.
- Lafourche Parish, LA's air releases fell from 102.5 thousand lb in 2022 to 85.0 thousand lb in 2023, based on EPA TRI filings.
- Lafourche Parish, LA's water releases fell from 535 lb in 2022 to 509 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 | 197 (54%) | 164 | 1 | 115 |
| 2023 | 153 (42%) | 211 | 1 | 101 |
| 2022 | 238 (68%) | 112 | 1 | 109 |
| 2021 | 204 (59%) | 143 | 0 | 84 |
| 2020 | 212 (58%) | 153 | 1 | 115 |
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 (1)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| LAFOURCHE WATER DISTRICT 1 | 81,609 | 0 |
TRI Facilities (16)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Bollinger Fourchon North | 148.1K lbs |
| 2 | Martin Terminal South Yard | 72.1K lbs |
| 3 | North American Shipbuilding Llc-Larose Shipyard | 63.2K lbs |
| 4 | Discovery Producer Services:larose Cryogenic Plant | 46.3K lbs |
| 5 | C-Port 2 LLC | 18.9K lbs |
| 6 | Halliburton Port Fourchon North Facility | 11.0K lbs |
| 7 | Grand Isle Shipyard Inc | 7.5K lbs |
| 8 | C-Port LLC | 5.7K lbs |
| 9 | Martin Operating Ptnr-Fourchon 15 | 5.3K lbs |
| 10 | Halliburton Port Fourchon South Facility | 3.8K lbs |
| 11 | John Deere Thibodaux | 2.7K lbs |
| 12 | Bollinger Shipyards Lockport LLC | 2.2K lbs |
| 13 | C-Port 3 | 158 lbs |
| 14 | John W Stone Oil Distribution LLC - Fourchon Fuel Dock | 10 lbs |
| 15 | Halliburton Larose Grinding Plant | 1 lbs |
| 16 | Lebeouf Bros Towing LLC DBA Bourg Dry Dock & Service | 0 lbs |
Cities in Lafourche Parish (6)
Frequently Asked Questions
What is the environmental risk level in Lafourche Parish, Louisiana? ▼
Are there Superfund sites in Lafourche Parish? ▼
How many toxic release facilities are in Lafourche Parish? ▼
What is the air quality in Lafourche Parish? ▼
Is the drinking water safe in Lafourche Parish? ▼
What environmental agencies cover Lafourche 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.