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MassDEP mails 74 annual certifications for active mitigation systems, asks owners to run shutdown-restart tests
Summary
MassDEP said it mailed 74 annual certification letters to property owners with active exposure-pathway mitigation measures and included a request for shutdown-restart tests under the 2024 MCP amendments to verify telemetry.
The Massachusetts Department of Environmental Protection told stakeholders it mailed 74 annual certification letters to property owners whose sites reached permanent solution status but rely on an active mitigation measure to keep vapor intrusion or other exposure pathways controlled.
"Those annual certifications were dropped in the mail earlier this week," Brian (DEP staff) said on the call. He described the certification as a five-point…
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