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Maintenance Plan and Redesignation Request for the Ajo PM10
The Environmental Protection Agency (EPA) is proposing to approve the ``Ajo PM<INF>10</INF> Redesignation Request and Maintenance Plan (May 3, 2019)'' (``Ajo PM<INF>10</INF> Maintenance Plan'' or ``Plan'') as a revision to the state implementation plan (SIP) for the State of Arizona. The Ajo PM<INF>10</INF> Maintenance Plan includes, among other...
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Air Plan Approval; Vermont; Infrastructure State Implementation Plan Requirements for the 2015 Ozone Standard
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Vermont that addresses the infrastructure requirements of the Clean Air Act (CAA or Act)--including the interstate transport provisions--for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The infrastructure...
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National Emission Standards for Hazardous Air Pollutants: Engine Test Cells/Stands Residual Risk and Technology Review
This action finalizes the residual risk and technology review (RTR) conducted for the Engine Test Cells/Stands source category regulated under national emission standards for hazardous air pollutants (NESHAP). In addition, we are taking final action on amendments to the Engine Test Cells/Stands NESHAP addressing periods of startup, shutdown, and...
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Air Plan Approval; Louisiana; Infrastructure for the 2015 Ozone National Ambient Air Quality Standards
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving elements of two State Implementation Plan (SIP) submittals from Louisiana for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The submittals address how the existing SIP provides for the implementation, maintenance, and...
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Air Plan Approval; Louisiana; Withdrawal of Stage II Vapor Recovery Systems Requirements
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving a revision to the Louisiana State Implementation Plan (SIP) submitted by the State of Louisiana (``State'') on May 30, 2019 that pertains to gasoline dispensing facilities (GDFs) in the parishes of Ascension, East Baton Rouge,...
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Clean Air Plans; 2008 8-Hour Ozone Nonattainment Area Requirements; Phoenix-Mesa, Arizona
The Environmental Protection Agency (EPA) is taking final action on a state implementation plan (SIP) revision submitted by the State of Arizona on behalf of the Maricopa Association of Governments (MAG) to meet Clean Air Act (CAA or ``the Act'') requirements for the 2008 ozone national ambient air quality standards (NAAQS or ``standards'') in...
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Air Plan Approval; Missouri; Restriction of Emission of Lead From Specific Lead Smelter-Refinery Installations
The Environmental Protection Agency (EPA) is proposing approval of a State Implementation Plan (SIP) revision submitted by Missouri on February 5, 2019. Missouri requests that EPA revise its approved plan which restricts emission of lead from specific lead smelter-refinery installations. The revisions remove emission restrictions for a facility...
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Promulgation of State Implementation Plan Revisions; Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards; Utah
On October 1, 2015, the Environmental Protection Agency (EPA) promulgated the 2015 ozone National Ambient Air Quality Standard (NAAQS), revising the standard to 0.070 parts per million. Whenever a new or revised is promulgated, the Clean Air Act (CAA or Act) requires each state to submit a State Implementation Plan (SIP) revision for the...
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Air Plan Approval; Kentucky; Infrastructure Requirements for the 2015 8-Hour Ozone National Ambient Air Quality Standard
The Environmental Protection Agency (EPA) is approving portions of a State Implementation Plan (SIP) submission, provided by the Commonwealth of Kentucky, Energy and Environment Cabinet, Department for Environmental Protection, through the Kentucky Division for Air Quality (KDAQ), on January 9, 2019, to demonstrate that the Commonwealth meets...
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Air Plan Approval; Iowa; State Implementation Plan and Operating Permits Program
The Environmental Protection Agency (EPA) is approving revisions to the Iowa State Implementation Plan (SIP) and the Operating Permits Program. The revisions include updating definitions, regulatory references, correcting the State's mailing address, requiring facilities to submit electronic emissions inventory information under the State's...
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Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District and Feather River Air Quality Management District
The Environmental Protection Agency (EPA) is proposing to approve revisions to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD or District) and the Feather River Air Quality Management District (FRAQMD) portions of the California State Implementation Plan (SIP) under the Clean Air Act (CAA or Act). For the SJVUAPCD, these...
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Air Plan Approval; Connecticut; Infrastructure State Implementation Plan Requirements for the 2015 Ozone Standard
The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Connecticut. This revision addresses the infrastructure requirements of the Clean Air Act (CAA or Act)--excluding the interstate transport provisions--for the 2015 ozone National Ambient Air Quality Standards...
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Air Plan Approval; Georgia: Definition for Permitting
The Environmental Protection Agency (EPA) is approving a portion of a State Implementation Plan (SIP) revision submitted by the State of Georgia, through the Georgia Department of Natural Resources' Environmental Protection Division (GA EPD) on September 19, 2006, with a clarification submitted on November 6, 2006, and a supplemental submittal...
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Air Plan Approval; WA; Infrastructure Requirements for the 2010 Sulfur Dioxide and 2015 Ozone Standards
Whenever a new or revised National Ambient Air Quality Standard (NAAQS) is promulgated, the Clean Air Act (CAA) requires states to submit a plan for the implementation, maintenance, and enforcement of the standard, commonly referred to as infrastructure requirements. The Environmental Protection Agency (EPA) is proposing to approve Washington...
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New Source Performance Standards; Delegation of Authority to Oklahoma
The Environmental Protection Agency (EPA) is proposing to update the Code of Federal Regulations (CFR) to reflect Oklahoma's current New Source Performance Standards (NSPS) delegation status and mailing address for the Oklahoma Department of Environmental Quality (ODEQ). The ODEQ has submitted updated regulations for delegation of the EPA...
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Air Plan Approval; Illinois; Redesignation of the Lemont and Pekin Sulfur Dioxide Nonattainment Areas
The Environmental Protection Agency (EPA) is redesignating the Lemont and Pekin sulfur dioxide (SO<INF>2</INF>) areas from nonattainment to attainment of the 2010 SO<INF>2</INF> national ambient air quality standard (2010 SO<INF>2</INF> NAAQS). EPA is also approving Illinois' maintenance plan for these areas. Emissions of SO<INF>2</INF> in the...
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National Oil and Hazardous Substances Pollution Contingency Plan; National Priorities List: Partial Deletion of the Libby Asbestos Superfund Site
The Environmental Protection Agency (EPA) Region 8 announces the deletion of the Operable Unit 1 (OU1), Former Export Plant of the Libby Asbestos Superfund Site (Site) located in Lincoln County, Montana, from the National Priorities List (NPL). The NPL, promulgated pursuant to section 105 of the Comprehensive Environmental Response,...
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National Oil and Hazardous Substances Pollution Contingency Plan; National Priorities List: Deletion of the JASCO Chemical Corp. Superfund Site
The Environmental Protection Agency (EPA) Region 9 is issuing a Notice of Intent to Delete the JASCO Chemical Corporation Superfund Site (Site) located in Mountain View, California, from the National Priorities List (NPL) and requests public comments on this proposed action. The NPL, promulgated pursuant to section 105 of the Comprehensive...
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Air Plan Approval; GA: Emission Reduction Credits
The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Georgia through a letter dated October 18, 2019, updating Georgia's rule titled Emission Reduction Credits which establishes a program for sources in specified counties to apply for credits for voluntary...
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Limited Approval, Limited Disapproval of Arizona Air Plan Revisions, Hayden Area; Sulfur Dioxide Control Measures-Copper Smelters
The Environmental Protection Agency (EPA) is proposing a limited approval and limited disapproval of revisions to the Arizona State Implementation Plan (SIP). This revision concerns sulfur dioxide (SO<INF>2</INF>) emissions from the primary copper smelter in Hayden, Arizona. We are proposing action on a local rule submitted by the Arizona...