Clark County - File #: 21-999

• File #: 21-999
• Status: Agenda Ready
• File created: 6/29/2021
• In control: Clark County Board of Commissioners
• On agenda: 7/20/2021
• Title: 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)

Date	Action By	Action	Result
7/20/2021	Clark County Board of Commissioners	Amended; Agenda note: DISCUSSION: Following introduction of the item, the Board was addressed by Marci Henson, Director of the Department of Environment and Sustainability, who advised that this matter was a requirement under the Clean Air Act by the U.S. Environmental Protection Agency to update the State Implementation Plan (SIP) based on the lowering of the Ozone standard in 2015; staff made a variety of modifications; revised drafts based upon public comments; received feedback from the Environmental Protection Agency; and requested approval to submit the revision. Chair Kirkpatrick opened the public hearing and asked if there were any persons present in the audience wishing to be heard on the matter. SPEAKER(S): None There being no persons present in the audience wishing to be heard on the matter, Chair Kirkpatrick closed the public hearing.	Pass

CLARK COUNTY BOARD OF COMMISSIONERS

AGENDA ITEM

Petitioner:

Marci Henson, Director, Department of Environment and Sustainability

Recommendation: 

title

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)

body

FISCAL IMPACT:

Fund #:	N/A	Fund Name:	N/A
Fund Center:	N/A	Funded PGM/Grant:	N/A
Amount:	N/A
Description:	N/A
Additional Comments:	N/A

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.