CLARK COUNTY BOARD OF COMMISSIONERS
AGENDA ITEM
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Petitioner: |
Marci Henson, Department of Environment and Sustainability |
Recommendation:
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Introduce an ordinance to amend Clark County Air Quality Regulation Section 12.1 to update, clarify, add new requirements for certain sources in nonattainment areas, define "Clean Air Solvent," provide criteria for insignificant units and activities, and delete discretionary language regarding required permit conditions in portable source permits; amend Section 12.11 to require minor sources to obtain an authority to operate under an applicable general permit, add a federal reference for applying screening models to source emissions, clarify, and correct a regulatory cross-reference; provide for other matters properly related thereto; and set a public hearing. (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 National Ambient Air Quality Standard (NAAQS) for ozone, lowering both the primary and secondary standards from 0.075 to 0.070 parts per million. When establishing a new NAAQS or revising an existing one, EPA must also designate areas as meeting (attainment) or not meeting (nonattainment) the NAAQS. Initially, the Las Vegas Valley was designated as marginal nonattainment. On July 22, 2022, EPA proposed to determine that the Las Vegas Valley nonattainment area had failed to attain the 2015 8-hour ozone NAAQS and would be reclassified as a “moderate” nonattainment area. On January 5, 2023, EPA officially made that determination and notified Clark County that the required state implementation plan (SIP) was due no later than January 1, 2023. Although that date has already passed, Clark County is moving forward in meeting the first set of SIP requirements to address the moderate nonattainment area designation with these proposed revisions to Section 12.1, "Permit Requirements for Minor Sources," and Section 12.11, "General Permits for Minor Stationary Sources.”
Staff recommends that a public hearing be set for February 20, 2024, at 10:00 a.m.