TRI Facilities
383
EPCRA Section 313 reporters
2023 EPA TRI data 383 facilities 990 water systems
Mississippi Environmental Profile
According to the U.S. Environmental Protection Agency's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List, this is Mississippi's (MS) full public environmental-compliance record - toxic releases, drinking-water systems, and Superfund sites in one place.
MS regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
Clean Water Act, NPDES (water-system health violations)
316 records
- RCRA · Subtitle C 14
RCRA Subtitle C (Superfund-site proxy)
14 records
What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.
Water Systems
990
SDWIS regulated
Superfund Sites
14
9 active NPL
Total Releases
269.4M lbs
TRI cumulative disclosure
Compliance Snapshot - MS
Sites with no recorded health violations 77.0%
Sites with at least one open violation 23.0%
Mississippi consolidates three federal EPA datasets into one statewide environmental profile: 383 Toxics Release Inventory (TRI) facilities reporting under EPCRA Section 313, 990 community water systems regulated under the Safe Drinking Water Act, and 14 sites on the Superfund National Priorities List.
TRI facilities in MS have cumulatively disclosed 269.4M lbs of toxic chemical releases, while SDWIS records show 1,850 total violations across the state's regulated water systems, of which 316 systems carry an active health-based violation (MCL exceedance or treatment-technique failure). Activity clusters in counties such as Rankin, Lee, Harrison, which account for the highest combined facility, water-system, and Superfund presence.
Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.
What does this state's environmental record show?
TRI Facilities
383
Water Systems
990
Superfund Sites
14
Total Violations
1,850
Total Releases
269.4M lbs
Health Violations
316
water systems
Largest Polluters
View all →| # | Facility | Total Releases |
|---|---|---|
| 1 | Tronox LLC | 64.0M lbs |
| 2 | Chemours Delisle Plant | 59.0M lbs |
| 3 | Georgia Pacific Leaf River Cellulose LLC | 14.4M lbs |
| 4 | Choctaw Generation LP L.l.l.p. | 10.3M lbs |
| 5 | Columbus Cellulose Fibers | 9.8M lbs |
| 6 | Tyson Farms Inc. - Carthage Ms Processing Plant | 9.7M lbs |
| 7 | International Paper-Vicksburg Mill | 9.5M lbs |
| 8 | Georgia-Pacific Monticello LLC | 8.8M lbs |
| 9 | Chevron Products Co Pascagoula Refinery | 7.4M lbs |
| 10 | Cf Industries Nitrogen LLC - Yazoo City Mississippi Plant | 6.9M lbs |
| 11 | Ergon Refining Inc | 5.8M lbs |
| 12 | Sanderson Farms LLC | 5.6M lbs |
| 13 | Sanderson Farms LLC | 5.1M lbs |
| 14 | Southern Hens Inc. | 5.1M lbs |
| 15 | Nucor Steel Jackson Inc | 4.0M lbs |
| 16 | Sanderson Farms LLC | 3.6M lbs |
| 17 | Tyson Farms Inc. | 2.5M lbs |
| 18 | Cottonseed Co-Op Corp | 1.9M lbs |
| 19 | Oxbow Greenwood LLC | 1.7M lbs |
| 20 | Mississippi Power Co - Plant Daniel | 1.3M lbs |
Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| CITY OF JACKSON | 189,673 | 100 |
| TRUELIGHT REDEVELOPMENT GRP #2 | 544 | 87 |
| SOUTH CENTRAL WATER ASSN | 12,260 | 86 |
| MOORE BAYOU W/A #3 | 378 | 80 |
| G T & Y WATER DISTRICT INC | 3,965 | 60 |
| HANCOCK COUNTY WATER & SEWER | 3,254 | 45 |
| NORTH HINDS W/A #2-CHAPEL HILL | 1,595 | 44 |
| HIWANNEE WATER ASSOCIATION #2 | 956 | 44 |
| TRAXLER WATER ASSOCIATION | 855 | 40 |
| TOWN OF EDWARDS | 1,980 | 39 |
| TOWN OF FLORENCE | 5,824 | 39 |
| BEAVER MEADOW WATERWORKS ASSOCIATION | 1,684 | 38 |
| VALLEY PARK W/A | 533 | 37 |
| NORTH BENTON W/A | 449 | 34 |
| TOWN OF COAHOMA | 200 | 32 |
| COAHOMA UTILITY DIST #2 | 645 | 32 |
| L & F WATER ASSOCIATION | 1,803 | 31 |
| H & H WATER SYSTEM, INC | 3,036 | 29 |
| CASCILLA WATER ASSOCIATION | 837 | 28 |
| HIWANNEE WATER ASSOCIATION #1 | 3,749 | 28 |
Cities with Water Issues
Starkville
Pop: -
Batesville
Pop: -
Clarksdale
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Coldwater
Pop: -
Byhalia
Pop: -
Como
Pop: -
Hernando
Pop: -
Olive Branch
Pop: -
Oxford
Pop: -
Senatobia
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Tunica
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Greenville
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Cleveland
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Indianola
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Isola
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Rosedale
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Ruleville
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Sunflower
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Tupelo
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Booneville
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Superfund Sites (14)
| Site Name | Status | HRS Score |
|---|---|---|
| American Creosote Works, Inc. | NPL Site | 62.20 |
| Chemfax, Inc. | NPL Site | 38.40 |
| Davis Timber Company | Deleted NPL Site | 48.57 |
| Flowood Site | Deleted NPL Site | - |
| Hercules Inc | NPL Site | 31.36 |
| Kerr-McGee Chemical Corp - Columbus | NPL Site | 52.47 |
| Mississippi Phosphates Corporation | NPL Site | 50.00 |
| Newsom Brothers/Old Reichhold Chemicals, Inc. | Deleted NPL Site | 45.70 |
| Picayune Wood Treating | NPL Site | 51.03 |
| Red Panther Chemical Company | Deleted NPL Site | 39.43 |
| Rockwell International Wheel & Trim | NPL Site | 50.00 |
| Sonford Products | NPL Site | 31.66 |
| Southeastern Wood Preserving | NPL Site | 48.03 |
| Walcotte Chemical Co. Warehouses | Deleted NPL Site | - |
Counties (83 total)
| County | Facilities |
|---|---|
| Rankin | 12 |
| Lee | 18 |
| Harrison | 13 |
| Desoto | 16 |
| Jones | 15 |
| Hinds | 17 |
| Madison | 11 |
| Bolivar | 5 |
| Lowndes | 14 |
| Tishomingo | 16 |
| Attala | 0 |
| Forrest | 14 |
| Lauderdale | 12 |
| Panola | 3 |
| Jackson | 14 |
| Scott | 8 |
| Tallahatchie | 0 |
| Lafayette | 4 |
| Yazoo | 4 |
| Hancock | 6 |
Showing top 20 counties by environmental activity. Mississippi has 83 counties total.
Largest Cities
Madison
Pop: -
8 facilities · 3 water systems
Horn Lake
Pop: -
2 facilities · 4 water systems
Hattiesburg
Pop: -
13 facilities · 10 water systems
Starkville
Pop: -
2 facilities · 14 water systems
Ashland
Pop: -
1 facilities · 2 water systems
Batesville
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2 facilities · 7 water systems
Clarksdale
Pop: -
1 facilities · 6 water systems
Coldwater
Pop: -
2 facilities · 5 water systems
Byhalia
Pop: -
4 facilities · 2 water systems
Como
Pop: -
1 facilities · 3 water systems
Hernando
Pop: -
4 facilities · 5 water systems
Jonestown
Pop: -
1 facilities · 1 water systems
Holly Springs
Pop: -
2 facilities · 0 water systems
Olive Branch
Pop: -
7 facilities · 3 water systems
New Albany
Pop: -
4 facilities · 5 water systems
Oxford
Pop: -
4 facilities · 11 water systems
Ripley
Pop: -
5 facilities · 4 water systems
Senatobia
Pop: -
2 facilities · 4 water systems
Robinsonville
Pop: -
1 facilities · 0 water systems
Southaven
Pop: -
2 facilities · 1 water systems
Frequently Asked Questions
How many polluting facilities are in Mississippi? ▼
Mississippi has 383 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 269.4M lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Mississippi have Superfund sites? ▼
Yes, Mississippi has 14 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
Is the water safe in Mississippi? ▼
Mississippi has 990 EPA-regulated water systems. 316 water 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 data is available for Mississippi? ▼
PlainEnviro provides three categories of EPA environmental data for Mississippi: Toxic Release Inventory (TRI) data covering 383 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 990 water systems, and Superfund National Priorities List (NPL) data for 14 contaminated sites.
How does Mississippi compare to other states environmentally? ▼
Mississippi has 383 TRI facilities with 269.4M lbs in total releases, 14 Superfund sites, and 1,850 water system violations on record. State-level environmental comparisons depend on many factors including industrial activity, population, and geographic size. Source: EPA TRI, SDWIS, and Superfund NPL databases.
Explore More Data for Mississippi
TRI Facilities in Mississippi →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Mississippi →
Community water systems and their violation records
Air Quality in Mississippi →
County-level AQI from EPA monitoring stations
Compare states by burden →
EJ screening scores for every U.S. county
State environmental rankings →
How states compare on releases, water and Superfund
Browse all states →
Environmental profiles for every U.S. state
About This Data
This page aggregates environmental data from three EPA programs for Mississippi: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.
PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.
What to do with Mississippi's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 383 TRI facilities reporting in Mississippi for the largest reported releases near a specific county. View facilities
- 316 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Mississippi compares to other states on releases, water violations, and Superfund sites. State rankings
Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial
According to the U.S. Environmental Protection Agency, this state profile is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities, the Safe Drinking Water Information System, and the Superfund National Priorities List, compiled since federal reporting began under the Emergency Planning and Community Right-to-Know Act in October 1986; see our methodology for full source citations and refresh cadence.
Every figure on PlainEnviro is rendered directly from EPA environmental compliance data, no number is typed in by an editor. State environmental figures are computed directly from EPA data. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.