2021 PM10 Maintenance Plan for the South Coast Air Basin

Summary

SCH Number
2021060111
Public Agency
South Coast Air Quality Management District
Document Title
2021 PM10 Maintenance Plan for the South Coast Air Basin
Document Type
NOE - Notice of Exemption
Received
Posted
6/7/2021

Document Description
In 2010, the South Coast Air Quality Management District (South Coast AQMD) requested the United States Environmental Protection Agency (U.S. EPA) to redesignate the South Coast Air Basin (Basin) attainment status for the 1987 24-hour average PM10 National Ambient Air Quality Standard (NAAQS), which is attained when fewer than four exceedances of 150 micrograms per cubic meter (µg/m-3) are recorded in a three-year period at each monitor, and submitted a PM10 maintenance plan. On July 26, 2013, the U.S. EPA approved the PM10 maintenance plan and redesignated the Basin as attainment with this standard. Section 107(d)(3)(E) of the federal Clean Air Act requires a subsequent maintenance plan to be submitted to U.S. EPA eight years after an attainment redesignation to provide for maintenance of the applicable NAAQS for an additional 10 years after the period covered by the first maintenance plan. As such, the South Coast AQMD has developed the 2021 PM10 Maintenance Plan for the 12-year period from 2023 to 2035, which includes: 1) a maintenance demonstration that the South Coast Air Basin will continue to attain the 1987 24-hour average PM10 NAAQS; 2) verification of continued attainment; 3) a commitment to a future monitoring network; 4) a contingency plan with provisions for implementation in the event of any future NAAQS violations of the 1987 24-hour average PM10 NAAQS; 5) a description of PM10 sources, concentration trends, and emission controls; and 6) an analysis of past NAAQS exceedances of the 1987 24-hour average PM10 NAAQS during the first maintenance period.

Contact Information
Kendra Reif
SCAQMD
Lead/Public Agency / Project Applicant
21865 Copley Dr
Diamond Bar, CA 91765

Phone : (909) 396-2492
kreif@aqmd.gov

Location

Counties
Los Angeles Orange Riverside San Bernardino
Other Information
Los Angeles, Riverside, Orange, and San Bernardino Counties.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
CEQA Guidelines Section 15061(b)(3) – Common Sense Exemption
Reasons for Exemption
South Coast AQMD, as Lead Agency, has reviewed the proposed project pursuant to: 1) CEQA Guidelines Section 15002(k) – General Concepts, the three-step process for deciding which document to prepare for a project subject to CEQA; and 2) CEQA Guidelines Section 15061 – Review for Exemption, procedures for determining if a project is exempt from CEQA. Since the proposed project relies on the continued implementation of existing regulations and programs by the South Coast AQMD and California Air Resources Board to reduce emissions without proposing new requirements that would involve physical changes, it can be seen with certainty that there is no possibility that the proposed project may have a significant adverse effect on the environment. Therefore, the proposed project is exempt from CEQA pursuant to CEQA Guidelines Section 15061(b)(3) – Common Sense Exemption. The proposed project is also categorically exempt from CEQA pursuant to CEQA Guidelines Section 15308 – Actions by Regulatory Agencies for Protection of the Environment, because the proposed project is designed to further protect or enhance the environment by demonstrating in the 2021 PM10 Maintenance Plan how attainment with the 1987 24-hour average PM10 NAAQS will be maintained. Further, there is no substantial evidence indicating that any of the exceptions to the categorical exemption pursuant to CEQA Guidelines Section 15300.2 apply to the proposed project.
County Clerks
Los Angeles Orange Riverside San Bernardino

Attachments

Notice of Exemption
Final NOE PM10 Maintenance Plan-OPR   PDF 79 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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