**INDEX TO DOCKET EPA-R09-OAR-2010-0590**
**LAS VEGAS VALLEY, NEVADA DETERMINATION OF ATTAINMENT (PM 10**  **);**

**DIRECT FINAL AND PROPOSED RULE**

**CATEGORY I. NOTICE OF FINAL RULEMAKING**

A. 75 FR xxxxx, Direct Final Rule, “Determination of Attainment

for PM 10 for the Las Vegas Valley Nonattainment Area, Nevada,” July ____, 2010.

B. Direct Final Rule, “Determination of Attainment for PM 10 for
the Las Vegas Valley Nonattainment Area, Nevada,” prepublication, signed version, July 21, 2010.

**CATEGORY II. NOTICE OF PROPOSED RULEMAKING**

A. 75 FR xxxxx, Proposed Rule, “Determination of Attainment for

PM 10 for the Las Vegas Valley Nonattainment Area, Nevada,” July ____, 2010.

B. Proposed Rule, “Determination of Attainment for PM 10 for theLas Vegas Valley Nonattainment Area, Nevada,” prepublication, signed version, July 21, 2010.

**CATEGORY III. INCORPORATION BY REFERENCE DOCUMENTS**

None.

**CATEGORY IV. OFFICIAL PUBLIC COMMENT ON THE NPRM**

None.

**CATEGORY V. FEDERAL REGISTER NOTICES**

A. 71 FR 61236, “Revisions to Ambient Air Monitoring Regulations,” final rule, October 17, 2006.

B. 71 FR 61144, “National Ambient Air Quality Standards for Particulate Matter,” final rule, October 17, 2006.

C. 69 FR 32273, “Approval and Promulgation of Implementation Plans; Nevada-Las Vegas Valley PM-10 Nonattainment Area;
Serious Area Plan for Attainment of the Annual and 24-Hour PM-10 Standards,” final rule, June 9, 2004.

D. 65 FR 37324, “Approval and Promulgation of Implementation Plans; Nevada—Las Vegas Valley Nonattainment Area; PM-10,”proposed rule, June 14, 2000.

E. 58 FR 3334, “Reclassification of Moderate PM10 Nonattainment Areas to Serious Areas,” final rule, January 8, 1993.

F. 56 FR 37654, “Designations and Classifications for Initial

PM 10 Nonattainment Areas,” Notice correcting EPA’s announcement of the designations and classifications for the
initial PM 10 (particulate matter nominally 10 microns in diameter or smaller) nonattainment areas, August 8, 1991.

G. 56 FR 11101, “Designations and Classifications for Initial

PM 10 Nonattainment Areas,” Notice announcing designations and classifications for initial PM-10 nonattainment areas,
March 15, 1991.

H. 55 FR 45799, “Preparation, Adoption, and Submittal of State Implementation Plans; Corrections to PM 10 Areas of Concern,”
Technical corrections to the areas of concern for certain Group I and Group II areas, October 31, 1990.

I. 52 FR 29383, “PM 10 Group I and Group II Areas,” List of PM 10 Group I and Group II Areas, August 7, 1987.

J. 52 FR 24634, “Revisions to the National Ambient Air Quality Standards for Particulate Matter,” final rule, July 1, 1987.

**CATEGORY VI. OTHER DOCUMENTS**

A. Air Quality System Quicklook report, dated July 12, 2010, summarizing PM-10 monitoring data collected at monitoring stations in Clark County, Nevada area for the first quarter

of 2010.

B. Clark County Department of Air Quality and Environmental Management, Annual Network Plan Report, June 2010.

C. Air Quality System Quicklook report, dated May 12, 2010, summarizing PM-10 monitoring data collected at monitoring stations in Clark County, Nevada area from 2004 through

2009.

D. U.S. EPA, Region IX, Technical System Audit Report, Clark County Department of Air Quality and Environmental Management Ambient Air Quality Monitoring Program, July 28- 30, 2009, February 2010.

E. Letter from Joseph Lapka, Acting Manager, Air QualityAnalysis Office, EPA Region IX, to Lewis Wallenmeyer, Director, Clark County Department of Air Quality and Environmental Management, dated November 12, 2009, approving Clark County’s 2009 Annual Network Plan Report.

F. Letter from Sean P. Hogan, Manager, Air Quality Analysis Office, EPA Region IX, to Lewis Wallenmeyer, Director, Clark County Department of Air Quality and Environmental Management, dated November 10, 2008, approving Clark County’s 2008 Annual Network Plan Report.

G. Letter from Sean P. Hogan, Manager, Air Quality Analysis Office, EPA Region IX, to Lewis Wallenmeyer, Director, Clark County Department of Air Quality and Environmental Management, dated May 5, 2008, approving Clark County’s 2007 Annual Network Plan Report with certain exceptions related
to ambient PM 2.5 monitoring.