EPAProposed Rule

State Coal Combustion Residuals Permit Program: Wyoming

EnergyEnvironment

Summary

The EPA is proposing to let Wyoming run its own program for managing coal ash (the leftover material from burning coal at power plants). This regulation matters because coal ash can contain harmful chemicals, and proper management helps protect groundwater and the environment from contamination.

Key Points

  • 1Wyoming would get approval to oversee coal ash disposal sites instead of the federal EPA directly managing these sites
  • 2Power plants and coal-burning facilities in Wyoming would follow state-run permit rules for handling and storing coal ash safely
  • 3The regulation aims to prevent coal ash waste from leaking into groundwater and nearby water supplies
  • 4Wyoming must show it has the expertise and authority to enforce safety standards at least as strict as federal requirements
  • 5The public has until November 4, 2025 to submit comments on whether this proposal is a good idea

Impact Assessment

If you are an Energy Company operating in Wyoming, this means you will need to comply with Wyoming's state-approved coal ash management program instead of the federal EPA program, potentially streamlining permitting but requiring adherence to state standards.

Impact Level
Significant
Geographic Scope

State-specific

Compliance Cost

Moderate

Who is Affected
Energy CompaniesState GovernmentsHomeowners

Key Dates

Published

September 2, 2025

Comment Deadline

November 4, 2025

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Regulatory Connections

Amends CFR Sections
40 CFR Part 257

This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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