Environmental Hazards
Explore 15,854 EPA Superfund sites and 78,654 toxic release inventory records across states. Track hazardous waste sites and chemical releases reported to the EPA.
Browse Superfund Sites
Search 15,854 EPA Superfund sites — hazardous waste locations designated for cleanup under CERCLA. Filter by state, NPL status, and program type.
Browse SuperfundBrowse Toxic Releases
Explore 78,654 records from the EPA Toxics Release Inventory. See which facilities release the most hazardous chemicals into your community.
Browse TRITop TRI Facilities by Total Releases
Facilities reporting the highest total chemical releases to the EPA Toxics Release Inventory.
| # | Facility | State | Chemical | Total Releases (lbs) |
|---|---|---|---|---|
| 1 | RED DOG OPERATIONS | AK | 0 | |
| 2 | KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANT | UT | 0 | |
| 3 | HECLA GREENS CREEK MINING CO | AK | 0 | |
| 4 | NEVADA GOLD MINES LLC - GOLDSTRIKE MINES INC | NV | 0 | |
| 5 | DARK HORSE TREATING FACILITY | NM | 0 | |
| 6 | ASARCO LLC RAY COMPLEX/ HAYDEN SMELTER & CONCENTRATOR | AZ | 0 | |
| 7 | MIDWAY GAS PLANT | TX | 0 | |
| 8 | NEVADA GOLD MINES LLC - CARLIN SOUTH AREA | NV | 0 | |
| 9 | MONTANA RESOURCES LLC | MT | 0 | |
| 10 | BASIN ELECTRIC ANTELOPE VALLEY STATION | ND | 0 | |
| 11 | CHEMICAL WASTE MANAGEMENT | AL | 0 | |
| 12 | FREEPORT-MCMORAN MIAMI INC | AZ | 0 | |
| 13 | SAND HILLS GAS PLANT | TX | 0 | |
| 14 | ASCEND PERFORMANCE MATERIALS-CHOCOLATE BAYOU PLANT | TX | 0 | |
| 15 | KENNECOTT UTAH COPPER SMELTER & REFINERY | UT | 0 |
Top Carcinogens Released
Known carcinogens with the most TRI reporting records.
| # | Chemical | Records | Total Released (lbs) |
|---|---|---|---|
| 1 | Arsenic compounds | 124 | 0 |
| 2 | Styrene | 1,142 | 0 |
| 3 | Asbestos (friable) | 34 | 0 |
| 4 | Nickel And Nickel Compounds | 548 | 0 |
| 5 | Formaldehyde | 715 | 0 |
| 6 | Lead | 4,099 | 0 |
| 7 | Acetaldehyde | 446 | 0 |
| 8 | Nickel compounds | 492 | 0 |
| 9 | Benzene | 1,179 | 0 |
| 10 | Acrylonitrile | 89 | 0 |
| 11 | Nickel | 2,549 | 0 |
| 12 | Acrylamide | 75 | 0 |
How It Works
Search Environmental Records
Browse 15,854 Superfund sites and 78,654 toxic release records from the EPA. Search by location, chemical name, or facility.
Review Facility Details
Each record includes the facility name, location, chemicals released, quantities, and whether the substance is a known carcinogen. Superfund sites include NPL status and EPA region.
Understand Community Impact
Identify hazardous sites and chemical releases near your community. The EPA requires facilities to report releases of over 650 toxic chemicals annually through the TRI program.
About This Data
Superfund sites are contaminated locations in the U.S. designated by the EPA for cleanup under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). These sites contain hazardous substances that pose risks to human health and the environment. The National Priorities List (NPL) identifies the most serious sites eligible for federal cleanup funding.
The TRI is a publicly available EPA database that tracks the management of certain toxic chemicals by industrial and federal facilities. Facilities must report annually how much of each chemical is released to the environment or otherwise managed. The data covers over 650 chemicals and chemical categories across multiple industry sectors.
All environmental data comes from the U.S. Environmental Protection Agency (EPA). Superfund site data is sourced from the EPA's Superfund Enterprise Management System (SEMS). Toxic release data comes from the EPA's Toxics Release Inventory (TRI) annual reporting program established under the Emergency Planning and Community Right-to-Know Act (EPCRA).