Air Plan Approval; AK; Juneau's Mendenhall Valley Second 10-Year PM10 Limited Maintenance Plan
Primary source
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Issuing agencies
Abstract
The Environmental Protection Agency (EPA) is proposing to approve the Juneau, Mendenhall Valley, Alaska (AK) limited maintenance plan (LMP) submitted on November 10, 2020, by the Alaska Department of Environmental Conservation (ADEC or "the State"). This plan addresses the second 10-year maintenance period beyond redesignation for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>). A LMP is used to meet Clean Air Act (CAA) requirements for formerly designated nonattainment areas that meet certain qualification criteria. The EPA is proposing to determine that Alaska's LMP meets CAA requirements. The plan relies upon control measures contained in the first 10-year maintenance plan and the determination that the Mendenhall Valley area currently monitors PM<INF>10</INF> levels well below the PM<INF>10</INF> National Ambient Air Quality Standards (NAAQS or "the standard").
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