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Proposed Rule2025-24134

No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
December 31, 2025

Issuing agencies

Environmental Protection Agency

Abstract

The U.S. Environmental Protection Agency (EPA) is proposing to grant, with conditions, no-migration variances for four categories/ groups of wastes, containing up to 250 temporary disposal units ("put piles") at any one time, from the Resource Conservation and Recovery Act (RCRA) Land Disposal Restrictions (LDR) standards at Clean Harbors' Grassy Mountain (Clean Harbors) commercial treatment, storage and disposal facility (TSDF) in Tooele County, UT. These variances will allow Clean Harbors to temporarily store treated hazardous wastes that are awaiting LDR compliance verification in put piles within their Subtitle C (hazardous waste) landfill. The petitioner demonstrated, to a reasonable degree of certainty, that there will be no migration of hazardous constituents from the disposal units for as long as the wastes remain hazardous. Additionally, once LDR compliance is verified, the put piles will be disposed within the onsite RCRA hazardous waste Landfill area and will be subject to the conditions set out in the Compliance Monitoring Plan section of this document.

Indexed from Federal Register on December 31, 2025.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.