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Odor modeling updated; staff and consultants say monitoring and third‑party verification can track odor but commissioners pressed for enforceable detail
Summary
Applicant reworked odor modeling to show detectable odor at the property boundary and proposed monitoring, third‑party verification and operational limits tied to modeling assumptions (including an organic waste throughput tied to the odor model). Commissioners asked for clarity on monitoring frequency and authority to enforce.
Republic Services provided updated odor modeling and additional monitoring commitments as part of its supplemental submission. Consultant Ray Huff (SCS) and Moll Foster reviewers told the commission they re‑ran dispersion modeling using EPA‑approved AirMod, subdividing the landfill surface into multiple source elements to better reflect the site's topography. The updated modeling shows odor can be detectable at the landfill property boundary under some conditions—consistent, staff said, with community testimony.
To address odor the applicant and staff proposed several operational measures and monitoring requirements. Those conditions include: regular odor monitoring and logging, a third‑party monitor to verify at least…
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