Mr. Jared Blumenfeld

Regional Administrator

OAR-i, USEPA Region IX

75 Hawthorne Street

San Francisco, CA 94105

RE: Recommended Designations for the Annual PM2.5National Ambient Air Quality

Standards (NAAQS) (78 Federal Register 3086, January 15,2013)

Dear Mr. Blumenfeld:

On behalf of Governor Sandoval, as his appointed designee, pursuant to Section 107(d)

ofthe 1990 Clean Air Act, I am submitting this letter requesting that the State ofNevada be

designated attainment or unclassifiable for the annual PM25 NAAQS, as follows:

• Hydrographic Area 87 (Reno planning area), Attainment• Hydrographic Area 212 (Las Vegas planning area), Attainment

• Hydrographic Area1 64A (Ivanpah Valley, Northern Part), Attainment

• All remaining hydrographic areas in the State ofNevada: Unclassifiable

The Air Quality Management Division (AQMD) ofthe Washoe County District Health

Department has reviewed 2010-20 12 data and determined that hydrographic area 87 in Washoe

County is in attainment ofthe revised annual PM2,5standard. A copy ofAQMD’s letter with

supporting data is enclosed. Similarly, the Department ofAir Quality (DAQ) in Clark County

has reviewed 2010-20 12 data and determined that hydrographic areas 212 and 164A in Clark

County are in attainment ofthe revised annual PM2.5standard. A copy of DAQ’s letter withsupporting data is enclosed. The Nevada Division of Environmental Protection recommends that

the rest ofthe hydrographic areas in the State be designated as unclassifiable, as there is not

sufficient data stored in the USEPA Air Quality System for these areas.

Please contact Jasmine Mehta at (775) 687-9495, if you have any questions you would

like to discuss.

Sincerely,

Colleen Cripps, Ph.D.

Administrator

Enclosures (2)
Rob Bamford, Chief, Bureau ofAir Pollution Control, NDEP

Certified Mail: 9171 9690 0935 0037 8207 08
ENVIRONMENTAL. PROTEC11ON

Dr. Colleen Cripps, Ph.D.

Administrator

Division ofEnvironmental Protection

901 S. Stewart St., Suite 4001

Carson City NV 89701-5249Subject: Initial Area Designation for the 2012 Revised Primaiy Annual Fine Particulate National Ambient Afr

Quality Standard

Dear Dr. Cripps:

The U.S. Environmental Protection Agency (EPA) promulgated a revised primary annual National Ambient Air Quality Standard (NAAQS) for fine particulate matter (PM2) on December 14, 2012 (78 FR 3086, January 15, 2013). Pursuant to Section 107(d) ofthe Clean Air Act, the governor of each state is to recommend area designations to the EPA whenever a NAAQS is established or revised.

The Washoe County Health District, Air Quality Management Division (WCAQMD) monitors PM2.5at two sites (Reno (AQS ID 32-031-0016) and Sparks (AQS ID 32-031-1005)), which are both located in

Hydrographic Area 87 as defined by the State ofNevada Division of Water Resources. Data from these two

sites were complete, quality assured, and reported in accordance with 40 CFR 50.8. Only one year ofPM2.5data

are available from the Sparks site because monitoring began in 2012. It is included in the attachment for

reference.

Based on guidance documents from Gina McCarthy (Assistant Administrator for the EPA Office ofAir and

Radiation) dated April 16, 2013, the WCAQMD recommends that:

1. Hydrographic Area 87 ofWashoe County be designated as an “attainment” area and

2. The remaining 1-lydrographic Areas within Washoe County be designated as “unclassifiable” areas for the revised annual PM25 NAAQS.

Ifyou have any questions or comments regarding this submittal, feel free to contact Ms. Yann Ling-Barnes or

me at (775) 784-7200.

Sincerely,

Daniel lnouye

Acting Director

Attachment (PM25Annual Averages)

cc: Yann Ling-Bames, P.E., WCAQMD

1001 EAST NINTH STREET I P.O. BOX 11130, RENO, NEVADA 89520(775) 784-7200 FAX (775) 784-7225

www.washoecounty.usThealth WASI-fOE COUNTY IS AN EQUAL OPPORTUNI1Y EMPLOYER

PRINTED ON RECYCLED PAPER
PM2.5Annual Averages

2010—2012

Annual Average (pg/m 3) Design Value (tgIm 3)

Year AQS ID 32-031-0016 AQS ID 32-031-1005 AQS ID 32-031-0016 AQS ID 32-031-1005

2010 6.0

2011 6.7

---

2012 6.0 8.2 6.2 N/A
917199 9991 7031 1432 5440

Ms. Col teen Cripps, Administrator E-mail: Cripps@ndep.nv.gov

Nevada Division of Environmental Protection

901 S. Stewart Street, Suite 4001

Carson City, NV 89701 -5249

Re: Recommendation of Designation for the Federal PM2.5Standard for Clark County

Dear Ms. Cripps,

As required by the Clean Air Act (CAA) Section 1 07(d)(1) and the recently promulgated PM2.5rule (78 FR

3086, January 15, 2013), please consider and include the following information regarding Clark County.

Nevada, in the Governor’s initial Particulate Matter Less than or equal to 2.5 microns (PM25)designation

recommendation.

The two PM25 federal reference monitors operating in Clark County with three recent years of completedata indicate attainment of both the annual and 24-hour Primary National Ambient Air Quality Standard

(NAAQS) for PM25 in the years 2010, 2011, and 2012, Moreover, additional PM2.5 FRM and FEM

samplers with less than three years of complete data do not show design values exceeding either the annual

or 24-hour PM25 NAAQS.In accordance with the CAA and applicable federal regulations (40 CFR 50, 53, and 58), Clark County

through its Department of Air Quality is recommending a designation of attainment for Hydrographic

Areas 212 and I 64A, and a designation of unclassifiable for the remainder portions of Clark County.

Hydrographic Area 212 is represented by the Sunrise Acres monitoring site with an annual PM2.5design

value of 7.9 ,tgJm 3and a 24-hour design value of 21 ig/m 3.Hydrographic Area I 64A is represented by the

Jean monitoring site with an annual PM2.5design value of 4 pg/rn 3and a 24-hour design value of 10 pg/rn 3.

If you have any questions or need more information on this issue, please contact Mike Sword, Planning

Manager, at (702) 455-1615.

Sincerely,

Lewis at enmeyer

Director

Enclosure: PM25 (FRM) Quality-Assured Data Analysis for 2010-2012

BOARD OF COUNTY COMMISSIONERS

Steve Sisolak, Chair • Larry Brown, Vice-Chairman

Susan Brager Tom Collins • Chris Giunchigliani

Mary Beth Scow • Lawrence Weekly

Don Burnette, County Manager
Site 2010 2011 201.2 3

Yr Average

Sunrise Acres (0561) 7.30 7.30 9.10 7.9 pg/rn 3

3.70 5.0 - -Hour Stand

asFRM

Site 2010 2011 2012 3-Yr Design Value

Sunrise Acres (0561) 22.3 20.5 21.6 21 pg/rn 3

Jean (1019) 10.1 8.6 12.5 10 pg/rn 3