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Enforcement and Compliance History Online (ECHO) Facilities

Published by U.S. EPA Office of Enforcement and Compliance Assurance (OECA) | U.S. Environmental Protection Agency | Metadata Last Checked: January 27, 2026 | Last Modified: 2026-01-19T00:00:00.000+00:00
ECHO provides integrated compliance and enforcement information for about 800,000 regulated facilities nationwide. Its features range from simple to advanced, catering to users who want to conduct broad analyses as well as those who need to perform complex searches. Enforcement and compliance data are available for air emissions, surface water discharges, hazardous waste, and drinking water systems. ECHO includes EPA, state, local and tribal environmental agency compliance and enforcement records that are contained in EPA national databases. ECHO also incorporates many EPA environmental data sets to provide additional context for analyses.

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