Air Plan Approval; Illinois; Alton Township 2010 Sulfur Dioxide Redesignation and Maintenance Plan
air-emissions · Rule · Published 2024-12-30 · Effective 2025-01-29 · IL · 89 FR 106357
Document
Document number
2024-30506
Federal Register citation
89 FR 106357
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2024-12-30
Effective date
2025-01-29
State
IL
EPA docket
EPA-R05-OAR-2023-0498
Abstract
The Environmental Protection Agency (EPA) is approving Illinois' request to redesignate the Alton Township nonattainment area in Madison County, Illinois to attainment for the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). EPA is also approving Illinois' maintenance plan for the area. Illinois submitted the request for approval on October 2, 2023. Additionally, EPA is taking final action to determine that the Alton Township area attained the 2010 SO<INF>2</INF> NAAQS by the September 12, 2021, attainment date, fulfilling EPA's obligation under the Clean Air Act (CAA) section 179(c) to determine whether the area attained the relevant NAAQS standard. EPA proposed to approve this action on October 8, 2024, and received no comments.December 30, 2024