Lafayette Parish, LA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Lafayette Parish in Louisiana · Population: 245,075
Lafayette Parish, LA is tracked across three EPA datasets covering 18 Toxics Release Inventory (TRI) facilities, 37 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 52/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 831.5K lbs of reported toxic releases under EPCRA Section 313, while 17 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 51 and a peak AQI of 108 in 2024, with 49% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 180 (49%) | 183 | 2 | 108 |
| 2023 | 211 (58%) | 153 | 1 | 112 |
| 2022 | 213 (59%) | 149 | 2 | 103 |
| 2021 | 243 (67%) | 122 | 0 | 87 |
| 2020 | 203 (56%) | 160 | 1 | 120 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 (37)
| System | Population | Violations |
|---|---|---|
| LPWDN NORTH REGION | 16,833 | 2 |
| LPWD SOUTH | 15,132 | 0 |
| MILTON PURCHASE WATER SYSTEM | 11,430 | 0 |
| CITY OF CARENCRO WATER SYSTEM | 10,485 | 0 |
| CITY OF BROUSSARD PURCHASE WATER SYSTEM | 10,242 | 2 |
| CITY OF YOUNGSVILLE WATER SYSTEM | 9,915 | 12 |
| CITY OF SCOTT WATER SYSTEM | 9,696 | 1 |
| CITY OF YOUNGSVILLE PURCHASE WS | 8,886 | 3 |
| CITY OF BROUSSARD WATER SYSTEM | 5,151 | 4 |
| CITY OF BROUSSARD HWY 90 WATER SYSTEM | 4,182 | 5 |
| LPWD NORTH PRODUCTION FACILITY | 4,122 | 0 |
| LPWDN SOUTH REGION | 4,032 | 0 |
| LPWDN PURCHASE WEST SCOTT | 3,051 | 0 |
| TOWN OF DUSON WATER SYSTEM | 2,190 | 0 |
| MILTON WATER SYSTEM | 1,782 | 0 |
| LPWDN WILDERNESS TRAIL | 1,644 | 0 |
| ILE DES CANNES WATER SYSTEM | 1,476 | 0 |
| LPWDN LA NEUVILLE HOLIDAY SUBDIVISION WS | 1,455 | 0 |
| LPWDN CARMEL DRIVE | 576 | 0 |
| LPWDN HOLIDAY MOBILE ESTATES WS | 426 | 0 |
| LPWDN SOUTH PARK | 372 | 0 |
| LPWDN FAIRWAY VILLAGE WS | 339 | 0 |
| BELLE PLACE TRAILER PARK WATER SYSTEM | 330 | 0 |
| LPWDN GUILLOT VILLAGE | 300 | 0 |
| WEST GATE TRAILER PARK WATER SYSTEM | 219 | 1 |
| G & J MOBILE HOME ESTATES WATER SYSTEM | 186 | 4 |
| G & R MOBILE HOME PARK WATER SYSTEM | 171 | 1 |
| CAJUN MOBILE HOME PARK WATER SYSTEM | 168 | 3 |
| ROYAL MOBILE ESTATES WATER SYSTEM | 141 | 0 |
| RODDY ROAD VILLAGE ASCENSION, LLC | 120 | 1 |
| PARKLAND TRAILER PARK WATER SYSTEM | 112 | 0 |
| TAMMIS MOBILE VILLAGE LTD. PWS | 98 | 1 |
| LPWDN TOWNSHIP WS | 72 | 0 |
| R & D PROPERTIES MOBILE HOME PARK | 42 | 3 |
| BADGER TRAIL WATER SYSTEM | 42 | 9 |
| MJS ESTATES WATER SYSTEM | 39 | 13 |
| LAKEVIEW TRAILER PARK WATER SYSTEM | 30 | 29 |
TRI Facilities (18)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Championx-Scott | 626.7K lbs |
| 2 | Univar Solutions USA LLC | 75.2K lbs |
| 3 | Clariant Corp - Broussard Site | 37.2K lbs |
| 4 | M-I LLC | 32.7K lbs |
| 5 | New Dairy Louisiana LLC | 20.4K lbs |
| 6 | Seasafe Inc | 15.5K lbs |
| 7 | Amcol Health & Beauty Solutions Inc | 9.2K lbs |
| 8 | Stuller Inc. | 6.1K lbs |
| 9 | Evonik Corp | 5.0K lbs |
| 10 | Sun Coast Resources LLC | 1.3K lbs |
| 11 | Deep South Chemical Inc | 715 lbs |
| 12 | Premier Chemical Technologies LLC | 665 lbs |
| 13 | Halliburton Lafayette Manufacturing | 459 lbs |
| 14 | Weatherford International Inc - Weatherford Artificial Lift | 151 lbs |
| 15 | Tomahawk Downhole LLC | 85 lbs |
| 16 | M & M International LLC | 25 lbs |
| 17 | Balmar LLC | 0 lbs |
| 18 | Bodycote Thermal Processing Inc. - Lafayette | 0 lbs |
Cities in Lafayette Parish (4)
Frequently Asked Questions
What is the environmental risk level in Lafayette Parish, Louisiana? ▼
Are there Superfund sites in Lafayette Parish? ▼
How many toxic release facilities are in Lafayette Parish? ▼
What is the air quality in Lafayette Parish? ▼
Is the drinking water safe in Lafayette Parish? ▼
What environmental agencies cover Lafayette 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.