Lead

Air Plan Approval; Massachusetts; Infrastructure State Implementation Plan Requirements for the 2015 Ozone Standard

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) submission by the Commonwealth of Massachusetts. Except as noted below, this submission satisfies the infrastructure requirements of the Clean Air Act (CAA) for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the CAA.

Publication Date: 
Tuesday, February 9, 2021 - 4:00am

Review of Dust-Lead Post Abatement Clearance Levels

Reducing childhood lead exposure is a priority for the Environmental Protection Agency (EPA). As part of EPA's efforts to reduce childhood lead exposure, and in coordination with the President's Task Force on Environmental Health Risks and Safety Risks to Children, EPA reevaluated the 2001 dust-lead clearance levels (DLCL). Clearance levels indicate the amount of lead in dust on a surface following the completion of an abatement activity. Surface dust is collected via dust wipe samples that are sent to a laboratory for analysis to determine whether clearance has been achieved.

Publication Date: 
Thursday, January 7, 2021 - 4:00am

Review of the Ozone National Ambient Air Quality Standards

Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria and the national ambient air quality standards (NAAQS) for photochemical oxidants including ozone (O<INF>3</INF>), the EPA is retaining the current standards, without revision.

Publication Date: 
Thursday, December 31, 2020 - 4:00am

Air Plan Approval; Missouri; Removal of Kansas City, Missouri Reid Vapor Pressure Requirement

The Environmental Protection Agency (EPA) is proposing approval of revision to the Missouri State Implementation Plan (SIP), submitted by the Missouri Department of Natural Resources (MoDNR) on September 15, 2020. The proposed revision removes the Kansas City, Missouri low Reid Vapor Pressure (RVP) requirement which required gasoline sold in the Kansas City, Missouri area to have a seven pounds per square inch Reid Vapor Pressure from June 1 to September 15.

Publication Date: 
Wednesday, December 23, 2020 - 4:00am

Review of the National Ambient Air Quality Standards for Particulate Matter

Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria and the national ambient air quality standards (NAAQS) for particulate matter (PM), the Administrator has reached final decisions on the primary and secondary PM NAAQS.

Publication Date: 
Friday, December 18, 2020 - 4:00am

Air Plan Approval; ID, Incorporation by Reference Updates and Rule Revisions

The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) revisions submitted by Idaho on June 5, 2019 and May 27, 2020. The submitted revisions update the incorporation by reference of specific Federal requirements and clarify source permitting requirements. The EPA finds that the changes are consistent with Clean Air Act requirements.

Publication Date: 
Thursday, November 19, 2020 - 4:00am

Air Plan Approval; Ohio; Technical Amendment

The Environmental Protection Agency (EPA) is finalizing the removal of the air pollution nuisance rule from the Ohio State Implementation Plan (SIP) using a Clean Air Act (CAA) error correction provision. EPA has determined that this rule was not relied upon by Ohio to demonstrate implementation, maintenance or enforcement of any national ambient air quality standard (NAAQS). Upon the effective date of this action, the nuisance rule will no longer be part of the Ohio SIP.

Publication Date: 
Thursday, November 19, 2020 - 4:00am

Determination of Attainment by the Attainment Date for the Salt Lake City, Utah and Provo, Utah 2006 24-Hour PM2.5

The Environmental Protection Agency (EPA) has determined that the Salt Lake City, Utah and Provo, Utah Serious nonattainment areas (NAAs) attained the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standards (NAAQS) by the December 31, 2019 ``Serious'' area attainment date. The determination is based on quality-assured, quality-controlled and certified ambient air quality monitoring data from 2017 through 2019, available in the EPA's Air Quality System (AQS) database.

Publication Date: 
Tuesday, November 17, 2020 - 4:00am

Air Plan Approval; Connecticut; Control of Particulate Matter and Visible Emissions

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Connecticut. This revision amends a Connecticut air-quality regulation for controlling particulate matter (PM) and visible emissions. The intended effect of this action is to define the process industries and activities to which this regulation applies, and to make technical corrections to an emission-rate calculation method. This action is being taken in accordance with the Clean Air Act.

Publication Date: 
Thursday, October 29, 2020 - 4:00am

Air Plan Approval; New Hampshire; Infrastructure State Implementation Plan Requirements for the 2015 Ozone and 2012 PM2.5

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of New Hampshire that 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 (NAAQS). We are also granting the state an exemption from the infrastructure SIP contingency plan obligation for ozone and are conditionally approving several elements of New Hampshire's submittal relating to air-quality modeling requirements.

Publication Date: 
Monday, October 26, 2020 - 4:00am

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