The U.S. Environmental Protection Agency announced Wednesday it will deny Wyoming’s proposed changes to a long-standing regional haze plan that requires major pollution control upgrades at the Jim Bridger coal-burning power plant in Sweetwater County.
The decision may result in the closure of Jim Bridger unit 2 as early as late February and unit 1 by year’s end. There are four coal burning units at PacifiCorp’s Jim Bridger plant, which employs about 700 people.
The Bridger surface mine, which supplies coal to Jim Bridger, employs about 187 workers.
“If finalized, EPA’s proposed action to disapprove the state’s revised plan will require PacifiCorp to adhere to the requirements of the existing regional haze plan, which has been in place since 2014, absent an approvable plan revision from the state,” EPA said in a press statement.
“PacifiCorp will continue to work with the EPA and the state of Wyoming in seeking a resolution that would avoid an early shutdown while maintaining compliance with regulatory requirements,” PacifiCorp spokesperson Tiffany Erickson said.
The 2014 plan required PacifiCorp to install “selective catalytic reduction” controls at Jim Bridger unit 1 by the end of 2022 and at unit 2 by the end of 2021. Instead, the Berkshire Hathaway owned utility giant that operates as Rocky Mountain Power in Wyoming, joined the state in drafting an alternative plan that would allegedly meet the same regional haze emission parameters by operating the two units at lower capacities.
But EPA said the proposed revision is flawed, and it will instead enforce the existing regional haze plan.
“EPA has found that Wyoming’s revised regional haze plan fails to justify reversing the state’s 2011 determination that the installation of Selective Catalytic Reduction (SCR) pollution control systems at Jim Bridger Units 1 and 2 is necessary under the Clean Air Act to make reasonable progress toward natural visibility conditions in Class I Areas,” EPA stated Wednesday.
Gov. Mark Gordon filed an emergency suspension order on Dec. 27 attempting to block the EPA from forcing a shutdown at the power plant.
“While not completely unexpected, EPA’s decision to disapprove the revised State Implementation Plan is a disappointing reflection of a federal agency acting in bad faith,” Gov. Mark Gordon said in a press statement Wednesday evening. “EPA’s backtracking and subsequent refusal to adopt an agreement previously approved by the regional office and EPA headquarters could impact the loyal workforce of the Jim Bridger Power Plant and coal mine.”
EPA is expected to file its decision to deny Wyoming’s proposed regional haze revision Jan. 18, which would initiate a 30-day public comment period. The federal agency could take enforcement action regarding Jim Bridger unit 2 immediately after it responds to public comments.
It’s unclear whether the EPA is cooperating with Gordon’s suspension order, which would block federal enforcement actions at Jim Bridger through the end of April.
— This story has been updated to include a comment from PacifiCorp. — Ed