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Union Parish, LA

Moderate Risk (44/100)

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 Union Parish in Louisiana · Population: 20,914

TRI sites such as Foster Farms Farmerville Plant; Reladyne; Sun Coast Resources LLC; SDWIS systems such as TOWN OF FARMERVILLE WATER SYSTEM; DARBONNE WS SOUTH; DARBONNE WS NORTH; NPL sites such as Marion Pressure Treating anchor Union Parish, LA's EPA extract. Derived burden score 44/100 (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 Union Parish include TOWN OF FARMERVILLE WATER SYSTEM; DARBONNE WS SOUTH; DARBONNE WS NORTH, while Foster Farms Farmerville Plant leads reported TRI pounds among local Form R filers. No AQS county monitors report here.

Burden score 44/100 (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 Union 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 Union Parish, LA: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

+5.1%

2 facilities that filed in 2022 and 2023

Whole inventory

+5.1%

1.0 million lb → 1.1 million lb, every facility that filed

  • Union Parish, LA's total reported releases rose from 1.0 million lb in 2022 to 1.1 million lb in 2023, based on EPA TRI filings.
  • Union Parish, LA's off-site transfers rose from 0 lb in 2022 to 1.3 thousand lb in 2023, based on EPA TRI filings.
  • Union Parish, LA's land releases fell from 715 lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
  • Union Parish, LA's chemicals reported rose from 6 in 2022 to 7 in 2023, based on EPA TRI filings.
County population (Census ACS)
20,914
TRI Facilities
3
Water Systems
17
Superfund Sites
1
Total Releases
2.7M lbs

Water Systems (17)

System System pop (SDWIS) Violations
TOWN OF FARMERVILLE WATER SYSTEM 5,352 89
DARBONNE WS SOUTH 3,261 69
DARBONNE WS NORTH 3,186 91
HOLMESVILLE WATER SYSTEM 2,406 38
POINT WILHITE WS 2,292 47
TOWN OF BERNICE WATER SYSTEM 1,863 91
ROCKY BRANCH WATER SYSTEM 1,650 55
LINVILLE-HAILE WATER SYSTEM 1,635 107
UNION PARISH WATERWORKS DISTRICT 1 1,626 114
WARDS CHAPEL WATER SYSTEM 1,620 164
VILLAGE OF MARION WATER SYSTEM 1,533 108
TRI-WATER SYSTEM 1,302 125
WEST STERLINGTON WATER SYSTEM 1,095 85
SALEM WATER SYSTEM 753 117
LITROE WATER SYSTEM 369 137
CORNEY WATER SYSTEM 249 0
VILLAGE OF DOWNSVILLE WATER SYSTEM 216 162

TRI Facilities (3)

# Facility Total Releases
1 Foster Farms Farmerville Plant 2.7M lbs
2 Reladyne 0 lbs
3 Sun Coast Resources LLC 0 lbs

Superfund Sites (1)

Site Name Status HRS Score
Marion Pressure Treating NPL Site 50.00

Cities in Union Parish (4)

Farmerville
3 facilities · 6 water
Bernice
0 facilities · 3 water
Marion
0 facilities · 3 water
Lillie
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Union Parish, Louisiana? ▼
Union Parish, LA has an environmental risk score of 44/100 (Moderate Risk), based on 3 TRI facilities, 1 Superfund sites, and 17 water systems on record. 16 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Union Parish? ▼
Yes, Union Parish, LA has 1 Superfund site on the EPA National Priorities List (NPL). Superfund sites are contaminated locations that require long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
How many toxic release facilities are in Union Parish? ▼
Union Parish, LA has 3 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 2.7M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Union Parish? ▼
Air quality monitoring data (EPA AQS) is not available for Union 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 Union Parish? ▼
Union Parish, LA has 17 EPA-regulated water systems. 16 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 Union Parish? ▼
Environmental compliance in Union 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.

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