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Modified Minor Sources/Arkansas State Implementation Plan: U.S. Environmental Protection Agency Region 6 Announces Approval

July 02, 2018

By: Walter G. Wright

Category: Arkansas Environmental, Energy, and Water Law

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The United States Environmental Protection Agency (“EPA”) Region 6 Office announced in a June 29th news release that it approved certain revisions to a State of Arkansas State Implementation Plan (“SIP”).

The approved revisions are for what is described as minor New Source Review.

The revisions are described as including:

. . . increasing the emissions thresholds that determine which facilities are required to get minor NSR permits, and setting levels to determine whether a proposed change at an existing facility qualifies as having trivial effects on emissions.

EPA is stated to have determined that the proposed revisions:

  • met Clean Air Act standards
  • address a significant portion of Arkansas Department of Environmental Quality (“ADEQ”) SIP revisions that had been under review by EPA

Minor New Source Review permitting is described as pertaining to emissions from facilities that do not contribute to significant deterioration of air quality. States are noted to have the flexibility to “customize the requirements of the minor NSR program as long as their program meets minimum requirements.”

A copy of the news release can be downloaded here.

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