Coal ash rules tighten for landfills

Summary#

House Bill 6429 would amend Michigan’s 1994 Natural Resources and Environmental Protection Act and add a new subpart. The stated goal is to provide for coal combustion residuals, but the supplied bill text ends partway through the changes to the Act, so the full legal change cannot be confirmed.

The visible text would:

  • Define coal combustion residuals as fly ash, bottom ash, boiler slag and flue gas desulfurization materials from coal burned to generate electricity by electric utilities and independent power producers.
  • Add definitions for coal combustion residuals landfills, impoundments, piles, management units and legacy impoundments.
  • Create a “beneficial use 6” category for coal combustion residuals. It requires a functional benefit, replacement of virgin material and compliance with relevant standards where available.
  • For unencapsulated use of 12,400 or more tons on land in non-roadway applications, require the user to document either comparable-or-lower environmental releases than analogous products, or releases at or below relevant health-based or regulatory benchmarks.
  • Revise several other solid-waste definitions and provisions. The supplied text does not show all of those changes or the added subpart’s rules.

What it means for you#

  • Electric utilities and independent power producers: Coal ash from burning coal to generate electricity would be identified as coal combustion residuals under the proposed definitions.
  • Owners and operators of coal-ash facilities: The bill would define several types of coal combustion residuals facilities and accumulations. The available text does not show the full duties, permits or enforcement rules that would apply to them.
  • People or businesses using these residuals: A use could qualify as “beneficial use 6” only if it meets the listed conditions. For the specified large, unencapsulated land uses, the user must document one of two environmental-release tests.
  • General public: The visible text does not create a new public-facing service, change a tax or fee, or establish a new independent agency. It adds a subpart, but its contents are not included in the supplied text.

Money#

No publicly available information.

  • The supplied material contains no cost estimate. It also does not show the complete bill, so any staffing, compliance or enforcement costs in the missing sections cannot be assessed.

What is unclear#

  • The supplied bill text stops partway through section 11506 and does not include the rest of that section, the other amended sections, the new subpart or the repeal provisions.
  • The full requirements for coal combustion residuals landfills and impoundments—including permits, closure, monitoring and enforcement—cannot be verified from the available text.
  • The text does not explain how “functional benefit,” “excessive quantities,” or the relevant environmental-release comparisons would be determined.
  • It is unclear how the new definitions would interact with existing coal-ash rules and permits.
  • No start date, funding details, or process for approvals, review, appeals or public reporting appears in the supplied material.

Case for#

  • A possible argument for the bill is that it would distinguish coal residuals from other ash and define the facilities and waste accumulations that need specific treatment under the law.
  • The proposed beneficial-use conditions could allow some residuals to replace virgin materials while requiring a functional use and, for certain large uses, documented limits on environmental releases.
  • The bill’s definitions could make it clearer which coal-burning materials and facilities fall within the rules—but the missing text prevents judging how complete that approach is.

Case against#

  • The supplied text does not reveal the full rules that would follow from the new definitions, making it hard to judge the protections or burdens the bill would create.
  • Some key tests rely on terms such as “functional benefit” and “relevant” standards or benchmarks; the visible text does not say who decides how to apply them.
  • The large-use release test applies to unencapsulated, non-roadway uses at or above 12,400 tons. The available text does not explain the treatment of other uses or smaller quantities.