CLARK COUNTY BOARD OF COMMISSIONERS
AGENDA ITEM
Petitioner: |
Marci Henson, Director, Department of Environment and Sustainability |
Recommendation:
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Conduct a public hearing; approve, adopt, and authorize the “Revision to the Nevada State Implementation Plan for the 2015 Ozone NAAQS: Nonattainment Major NSR Requirements: Las Vegas Valley Nonattainment Area, Clark County, Nevada,” and authorize the Director or her designee to submit the revision, including any relevant public comments, to the State of Nevada and the U.S. Environmental Protection Agency for review and approval as a revision to the Nevada State Implementation Plan. (For possible action)
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FISCAL IMPACT:
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BACKGROUND:
On October 1, 2015, the U.S. Environmental Protection Agency (EPA) revised the 8-hour ozone National Ambient Air Quality Standards (NAAQS), lowering both the primary and secondary standards from 0.075 to 0.070 parts per million. When an existing NAAQS is established or revised, EPA must designate areas as meeting or not meeting the standard, and states are required to develop state implementation plans (SIP) that outline how they will attain or maintain that standard. The Las Vegas Valley was designated as a marginal nonattainment area for the 2015 ozone standard, effective August 3, 2018.
Under the Clean Air Act and final implementation rule for the 2015 standard, Clark County is required to meet certain SIP requirements for marginal nonattainment areas. The purpose of the attached SIP revision is to address the nonattainment new source review program requirements for the Las Vegas Valley nonattainment area under the 2015 ozone standard.
The proposed SIP revision was made available for public comment from May 26, 2021 through June 25, 2021, on the Department of Environment and Sustainability (DES) and Clark County websites. The attached plan includes changes made to the public review draft incorporating comments received from EPA during the comment period. These changes address typographical corrections to three Air Quality Regulations cited in Table 2-1. No other comments were received. Staff requests the Board approve and adopt this SIP revision and authorize staff to submit it to the State of Nevada and EPA for approval as a revision to the Nevada SIP.