Browse Industrial Facilities

Explore all 25,986 EPA-tracked industrial facilities with toxic release data

About this facility browse listing

This page browses every industrial facility that filed a Toxics Release Inventory (TRI) report to the U.S. Environmental Protection Agency under EPCRA section 313. The TRI program collects information on toxic chemical releases and waste-management activities from manufacturing, mining, electric utilities, and federal-facility operations across the United States. A facility appears in this list when it meets all three TRI reporting criteria: it is in a covered industry sector, has the equivalent of 10 or more full-time employees, and manufactures, processes, or otherwise uses a TRI-listed chemical above the activity threshold for that chemical.

The total release figure for each facility is a mass total (in pounds) summing on-site air, water, land, and underground-injection releases plus off-site transfers for further waste management. The figure aggregates across all chemicals reported by the facility and does not weight by chemical toxicity, persistence, or bioaccumulation potential. Facilities reporting larger volumes of less-toxic chemicals will rank above facilities reporting smaller volumes of more-hazardous substances under this raw-mass ordering. For comparative analysis that incorporates relative-toxicity weighting, the EPA publishes the Risk-Screening Environmental Indicators (RSEI) model separately from the TRI raw data.

How to use this listing

Use the sort controls at the top of the table to rank facilities by name (alphabetical A–Z), by total releases (largest to smallest), or by chemical-count diversity (most distinct TRI chemicals first). The alphabetical index lets you jump to facilities whose name starts with a specific letter. Use the search controls on the BrowseHeader to filter by name fragment, by industry code, or by state. Clicking any facility name opens the facility detail page with the full reported-chemical breakdown, multi-year release history where available, parent-company affiliation, and Census-tract location.

Cross-reference any facility against our companion data surfaces: the state-level rollup shows aggregate facility count, water-system count, and Superfund site count by state. The chemical-level rollup ranks the 600+ TRI-reportable chemicals by total reported release mass and shows the facilities reporting each chemical. The research section contains live SSR-from-DB analyses comparing state, county, and chemical concentration patterns. The methodology page documents the upstream data sources, ingest cadence, and editorial choices that shape every figure on this site.

The data shown reflects the most recent TRI-reporting-year ingest. The EPA publishes annual TRI data in two stages: a preliminary public-release file each summer covering the prior calendar year, followed by a finalized Basic Data File later in the year. Reporting revisions can occur as facilities correct earlier filings or as the EPA publishes data quality updates. We refresh the PlainEnviro database each TRI cycle and document the ingest date in the per-facility detail pages. For research and citation use, prefer the EPA Envirofacts portal as the authoritative original source.

Facility Total Releases (lbs)
Mapei Corp Dalton 0
Mapei Corp Fort Lauderdale 0
Mapes Piano String Co Elizabethton 6,037.636
Maple Eagle LLC Powellton 4,782.098
Maple Manufacturing LLC Weirton 1,391.429
Maquoketa Co Maquoketa 0
Mar Tek Electronics Onamia 0
Mar-Bal Inc. Dublin 33,918.38
Mar-Bal Inc. Painesville 57,806
Mar-Bal Inc. Cuba 19,857
Mar-Bal Pultrusion Inc. Willoughby 21,262
Mar-Jac Poultry Al LLC Jasper 5,145.318
Mar-Jac Poultry Inc Maysville 0
Mar-Jac Poultry Inc-Gainesville Plant Gainesville 17,581.6
Mar-Jac Poultry Ms LLC Hattiesburg 261,085
Marathon Dickinson Refinery Dickinson 66,182.52
Marathon Electric LLC Wausau 289.567
Marathon Electric LLC Lebanon 230.22
Marathon Mandan Refinery Mandan 1,896,141.901
Marathon Petroleum Co - Big Sandy Asphalt Terminal Catlettsburg 1
Marathon Petroleum Co - Cleveland Asp Terminal Cleveland 432.8
Marathon Petroleum Co - Floreffe Pa Asphalt Terminal Jefferson Hills 244.8
Marathon Petroleum Co - Knoxville Tn Asp Terminal Knoxville 36.6
Marathon Petroleum Co - Kuttawa Ky Terminal Kuttawa 1,201.1
Marathon Petroleum Co - Lebanon Oh Terminal Lebanon 1,128
Marathon Petroleum Co - Louisville Cane Run Terminal Louisville 447.6
Marathon Petroleum Co - Nashville Tn Asp Terminal Nashville 97.7
Marathon Petroleum Co - North Bend Oh Terminal North Bend 1,288.4
Marathon Petroleum Co - Wellsville Oh Asp Terminal Wellsville 4,971.1
Marathon Petroleum Co LP Garyville 3,625,010.951
Marathon Petroleum Co LP - Michigan Refining Div Detroit 780,133.43
Marathon Petroleum Co LP Illinois Refining Div Robinson 2,317,503.213
Marathon Petroleum Co LP Ohio Refining Div Canton 301,193.753
Marathon Pipe Line - Boise Boise 18,399.3
Marathon Pipe Line - Heath Terminal Heath 23,484
Marathon Pipe Line - Woodhaven Terminal Woodhaven 10,988
Marathonnorco Aerospace Inc Waco 51,003.058
Marble Arch Products Inc Franklin 11,730
Marble Falls Bagging Plant Burnet 0.443
Marble Palace Stockton 223.96
Marble Products Co Wichita 6,707
Marbleworks Inc South Elgin 19,742
Marcal Manufacturing LLC Elmwood Park 0.095
Marcegaglia Stainless Richburg LLC Richburg 40
Marco Boardhouse Poughkeepsie 0.09
Marcus Paint Co Louisville 9,281
Marel Inc. Gainesville 197.746
Marelli N.a. Lewisburg 0
Marelli N.a. Inc. - Shelbyville Shelbyville 2,038
Marelli Tennessee USA Llc. Pulaski 18,061.81