# 2026-12544: EPA Allows Temporary Hazardous Waste Storage at Utah Site

2026-12544, No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah, is a Federal Register rule from Environmental Protection Agency published 2026-06-23, effective 2026-07-23 (as of 2026-06-30).

- Canonical: https://policyrisk.com/federal-register/2026-12544
- As of: 2026-06-30
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-12544
- Title: No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah
- Type: Rule
- Agencies: Environmental Protection Agency
- Citation: 91 FR 37319
- Published: 2026-06-23
- Effective: 2026-07-23
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-30

## In one line

EPA Allows Temporary Hazardous Waste Storage at Utah Site

## Summary

The EPA just gave Clean Harbors’ Grassy Mountain facility in Utah the green light to temporarily store up to 250 piles of treated hazardous waste onsite while they check if it meets safety rules. This means the waste won’t leak or cause harm, and once it’s cleared, it’ll be safely buried right there. The new rules kick in on July 23, 2026, helping Clean Harbors keep things safe and smooth without extra costs.

## Abstract

The Environmental Protection Agency (EPA) is approving with conditions, no-migration variances for four categories/groups of wastes, containing up to a combined 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, Utah. These variances will allow Clean Harbors to temporarily store treated hazardous wastes that are awaiting LDR compliance verification in put piles within its 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 put piles 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 cell and will be subject to the conditions set out in the Compliance Monitoring Plan section of this document.

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-12544 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/23/2026-12544/no-migration-variance-from-land-disposal-restrictions-for-clean-harbors-grassy-mountain-utah)
- [2026-12544 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-23/pdf/2026-12544.pdf)

## Related
- [Previous: 2026-12510, Deletion of Obsolete Regulations](https://policyrisk.com/federal-register/2026-12510)
- [Next: 2026-12546, Special Local Regulation; Oyster Bay Harbor, Wantagh, NY](https://policyrisk.com/federal-register/2026-12546)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-12544 (as of 2026-06-30).