p

, 

Jared Blumenfeld, Regional Administrator

OAR-i, USEPA Region IX

75 Hawthorne Street

San Francisco, CA 94105

Dear Mr. Blumenfeld:

On behalf of Governor Gibbons, as his appointed designee, this letter transmits to the U.S.

Environmental Protection Agency (EPA) the Clark County Ozone Redesignation Request and Maintenance Plan (Plan), dated March 2011. Two hard copies ofthe Plan and five electronic copies are enclosed. The submittal may be accessed electronically at http ://www.clarkcountynv.gov/Depts/daciemlPages/StatelmplementationPlans.aspx. The Nevada Division of Environmental Protection requests that EPA approve the Plan into the Nevada State Implementation Plan and redesignate the Las Vegas Valley ozone nonattainment area to

attainment status for the 1997 8-hour ozone National Ambient Air Quality Standards.

The Plan was adopted by the Clark County Board of County Commissioners on March 15, 2011. Evidence of adoption, appropriate public notice and the participation process is included as Appendix C. If you should have any questions about this submittal or require additional clarification, you may contact Robert Tekniepe ofthe Clark County Department of Air Quality and Environmental Management at (702) 455-4063.

Sincerely,

LE

olleen Cripps, Ph.D.

Administrator

Enclosures

cc w/o enclosures: Dale Erquiaga, Senior Advisor, Office of the Governor

Leo Drozdoff, Director, DCNR

Michael Elges, Deputy Administrator, NDEP

Greg Remer, Chief, Bureau of Air Quality Planning, NDEP

Tina Gingras, Assistant Director, Clark County DAQEM

Robert Tekniepe, Principal Mgmt Analyst Clark County DAQEM

Lisa Hanf, Chief, Planning Office (AIR-2), Air Division, EPA Region IX Karma O’Connor, Planning Office (AIR-2), Air Division, EPA Region IX

Certified Mail No. 7009 3410 0000 1454 6635
Colleen Cripps, Ph.D., Administrator

Nevada Division of Environmental Protection

Department of Conservation & Natural Resources

901 South Stewart Street, Suite 4001

Carson City, Nevada 89701-5249

RE: Clark County Ozone Redesignation Request and Maintenance Plan

Dear Ms. Cripps:

In satisfying the requirements of the Clean Air Act, Sections 1 75A and 1 07(d)(3)(E), the Clark County Department of Air Quality and Environmental Management (DAQEM) is pleased to submit the Clark County Ozone Redesignation Request and Maintenance Plan (03 Maintenance Plan). DAQEM is requesting that the U.S. Environmental Protection Agency redesignate the Clark County nonattainment

area to attainment status for the 1997 8-hour Ozone National Ambient Air Quality Standard.

DAQEM also requests limited approval of the motor vehicle emissions budgets and full approval of all other items in the 03 Maintenance Plan. The limited approval request is due to the transition from the MOBILE6 to the MOVES model; a condition that will require a future revision of the 03 Maintenance Plan.

Enclosed are three printed and six electronic copies of the 03 Maintenance Plan including Appendices A, B and C. Please forward two printed and five electronic copies to EPA Region IX.

If you have any questions regarding the CO Maintenance Plan, please contact Robert Tekniepe, Principal Management Analyst at (702) 455-4063.Sincerely,

Lewis Wallenmeyer, Director

Enclosures

BOARD OF COUNTY COMMISSIONERS

Susan Brager, Chair • Steve Sisolak, Vice-Chairman

Larry Brown • Tom Collins Chris Giunchigliani

Mary Beth Scow • Lawrence Weekly

Don Burnette, County Manager