PlainEnviro

St. Landry Parish, LA

Moderate Risk (38/100)

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 St. Landry Parish in Louisiana · Population: 82,128

St. Landry Parish, LA is tracked across three EPA datasets covering 2 Toxics Release Inventory (TRI) facilities, 25 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 38/100 (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 2.3M lbs of reported toxic releases under EPCRA Section 313, while 18 water systems carry an active health-based violation in the SDWIS record. No EPA Air Quality System monitors currently report data for this county.

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.

Population
82,128
TRI Facilities
2
Water Systems
25
Superfund Sites
0
Total Releases
2.3M lbs

Water Systems (25)

System Population Violations
TOWN OF LEONVILLE WATER SYSTEM 9,552 8
LEWISBURG BELLEVUE WATER SYSTEM 8,226 0
PLAISANCE WATER SYSTEM 6,375 2
PRAIRIE RONDE WATER SYSTEM INC 6,090 4
ST LANDRY WATER WORKS DISTRICT 2 RURAL 4,761 2
UNITED WATER SYSTEM 4,446 58
TOWN OF SUNSET WATER SYSTEM 4,356 18
TOWN OF ARNAUDVILLE WATER SYSTEM 3,957 1
TOWN OF PORT BARRE WATER SYSTEM 3,828 0
LAWTELL WATER WORKS DISTRICT NO 1 3,741 3
VILLAGE OF CANKTON WATER SYSTEM 2,598 5
VILLAGE OF PALMETTO WATER SYSTEM 2,178 61
TOWN OF KROTZ SPRINGS WATER SYSTEM 2,130 0
ST LANDRY WWD 3 PORT BARRE AREA D 1,860 1
TOWN OF WASHINGTON WATER SYSTEM 1,713 9
TOWN OF GRAND COTEAU WATER SYSTEM 1,650 17
GREENBRIAR PRAIRIE BASSE WATER SYSTEM 1,620 1
MORROW WATER SYSTEM INC 1,572 0
TOWN OF MELVILLE WATER SYSTEM 1,314 5
ST. LANDRY WATERWORKS DISTRICT NO. 5 519 0
ST LANDRY WWD 3 PORT BARRE AREA B 516 14
ST LANDRY WWD 3 PORT BARRE AREA C 351 0
ST LANDRY WWD 3 PORT BARRE AREA A 270 0
HIDDEN HILLS SUBDIVISION WATER SYSTEM 240 17
MIDWAY WATER SYSTEM INC 192 11

TRI Facilities (2)

# Facility Total Releases
1 Alon Refining Krotz Springs Inc 2.3M lbs
2 Lemoyen LLC - Lemoyen Plant 0 lbs

Cities in St. Landry Parish (2)

Krotz Springs
Pop: -
1 facilities · 2 water
Morrow
Pop: -
1 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in St. Landry Parish, Louisiana? ▼
St. Landry Parish, LA has an environmental risk score of 38/100 (Moderate Risk), based on 2 TRI facilities, 0 Superfund sites, and 25 water systems on record. 18 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in St. Landry Parish? ▼
No Superfund National Priorities List (NPL) sites are currently registered in St. Landry Parish, LA in the EPA database.
How many toxic release facilities are in St. Landry Parish? ▼
St. Landry Parish, LA has 2 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 2.3M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in St. Landry Parish? ▼
Air quality monitoring data (EPA AQS) is not available for St. Landry Parish, LA. This may indicate no EPA monitoring stations are located in the county. For regional air quality data, see the state environmental profile or visit EPA's AirNow.gov.
Is the drinking water safe in St. Landry Parish? ▼
St. Landry Parish, LA has 25 EPA-regulated water systems. 18 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover St. Landry Parish? ▼
Environmental compliance in St. Landry Parish, Louisiana is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Louisiana state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

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.

Related Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

Related

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Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial