About the Data
Envirofacts brings together EPA program data used for permitting, compliance, environmental monitoring, and reporting. This page summarizes each data source and provides links to the search tools, user guides, overviews, and data models.
On this page
🔀 Multisystem
Envirofacts Multisystem
The Multisystem Search looks across multiple EPA program datasets to find facility-centric information—including IDs, locations, program participation, and high-level environmental activity—so you can get a consolidated view before using a specific program’s detailed tools.
🌬️ Air
Greenhouse Gas Reporting Program (GHGRP)
GHGRP provides facility-level greenhouse gas information from large direct emitters, fuel and industrial gas suppliers, and CO2 injection sites. Explore facilities, reported gases, sectors, and geographies; use the model reference for data structure details.
ICIS-AIR
ICIS-AIR contains air permitting and compliance information for stationary sources regulated under the Clean Air Act, including facility identifiers, permitting details, and compliance monitoring activities.
National Emissions Inventory (NEI)
NEI provides national estimates of air emissions by pollutant, source category, and geography for air quality planning, trends analysis, and research.
UV Index
The UV Index provides daily and hourly forecasts of ultraviolet radiation to help plan sun-protective behaviors.
💧 Water
ICIS-NPDES (Permitting & Discharge Monitoring)
ICIS-NPDES tracks Clean Water Act permits, limits, monitoring, and enforcement for dischargers, including outfalls, parameter limits, and discharge monitoring results.
Safe Drinking Water Information System (SDWIS)
SDWIS houses information about public water systems, including inventory, monitoring and reporting, violations, and enforcement actions.
🏭 Land & Waste
Biennial Hazardous Waste Report (BR)
BR collects data (odd-numbered years) from large quantity generators and treatment, storage, and disposal facilities on generation quantities, waste streams, and management methods to support analysis of hazardous waste trends.
RCRAInfo (Hazardous Waste)
RCRAInfo contains handler identification, activities, permitting, corrective action, and compliance tracking for entities that generate, transport, treat, store, or dispose of hazardous waste.
SEMS (Superfund)
The Superfund Enterprise Management System tracks contaminated sites addressed under CERCLA—from discovery and assessment through cleanup milestones and long-term stewardship.
☣️ Toxics (TRI)
Toxics Release Inventory (TRI)
TRI provides facility-reported information on the management of listed toxic chemicals—releases, recycling, energy recovery, treatment—and optional P2 text on source reduction activities and outcomes.
Additional TRI tools
Alternative entry points for simplified and advanced reporting, plus P2-focused exploration.
📡 Radiation
RadNet
RadNet is a national monitoring network measuring environmental radiation in air, precipitation, and drinking water to support baseline understanding and incident response.
🏢 Facility
Facility Registry Service (FRS)
FRS is EPA’s authoritative facility identification and cross-program linkage system, reconciling records from many programs into a single high-quality facility entity for joined analyses across air, water, waste, and toxics datasets.
⚖️ Compliance
ECHO (Enforcement & Compliance History Online)
ECHO provides public access to facility compliance and enforcement histories across major environmental programs, including inspections, violations, and government responses, with demographic and geographic context.
📊 Other
Next Generation Grants System (NGGS)
NGGS supports EPA grants award, administration, and monitoring. Search for awards and recipients; use the model for data structure and field definitions.