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Clark County Air Quality Status Department of Air Quality and Environmental Management August 10, 2004. Clark County’s Current CO SIP Status. U.S. EPA approved the CO SIP on July 23, 2004.
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Clark County Air Quality StatusDepartment of Air Quality and Environmental ManagementAugust 10, 2004
Clark County’s Current CO SIP Status • U.S. EPA approved the CO SIP on July 23, 2004. • Final approval occurs 30 days after publication in the Federal Register (Publication date sometime in the next 30 days.)
Clark County’s Current CO SIP Status Status and Next Steps: • No recorded exceedances in Clark County for last 5 years • Preparation of a Maintenance Plan and Redesignation Request to attainment status
Clark County’s Current PM10 SIP Status • Publication in the Federal Register was June 9, 2004. • The 60 day window of litigation expired on August 9, 2004.
Clark County’s Current PM10 SIP Status Work Underway: • Inventory of vacant land and private unpaved roads • Construction activities inventory • Refine emissions factors for vacant land
Clark County’s Current PM10 SIP Status Work Underway: • Paved road PM10 emissions measurements by vehicle based detection units • Paved road PM10 emissions factor and reservoir depletion/recharging study (RTC) • Attainment demonstration modeling for BLM boundary expansion
Clark County’s Current PM10 SIP Status Work Underway: • Completion of the Natural Events Action Plan • Independent audit of the PM10 Monitoring Network (PM10 Saturation Study)
Clark County’s Current PM10 SIP Status The Future: • Attainment of the 24-Hour Standard by 2006 • Maintenance Plan and Redesignation Request
Ozone Designation Status • On April 15, 2004 the U.S. EPA proposed to designate Clark County as nonattainment for Ozone effective June 15, 2004
Ozone Designation Status Extension Granted on Designation • Governor sent request to Administrator of EPA to extend the June 15, 2004 effective date. • EPA granted 90 days extension to September 13, 2004
What are we doing? • Clark County engaged Desert Research Institute to complete “Eleven-Factor Analysis” to determine appropriate boundaries • Analysis submitted to EPA on August 4, 2004. EPA will review analysis and determine appropriate boundary.
Data Collection (May 2004 thru 2005) • Monitoring data • Emission inventory • Meteorological data June 2007 SIP Submittal 2005 2006 2004 2007 Assessment of emission reduction strategies (May 2004 –2005) Designated Nonattainment April 15, 2004 • Adoption/Implementation Phase • Demonstration of attainment • Adopt rules implementing emission reduction strategies • Public Involvement and Formal Hearing Process • Prepare SIP Submittal Package Draft Plan May 2004-2005 Ozone SIP Development Timeline
Clark County’s Ozone Status Currently Clark County is proceeding with eight studies: • Ozone characterization study • Nonroad engine inventory • Volatile Organic Compounds emitted from the use of consumer products • Biogenic emissions inventory • Mobile source impact study • Sodar to study ozone transport issues • Comprehensive Emissions Inventory of Ozone precursors • Evaluation of Potential Control Measures
QUESTIONS? Please contact: The Department of Air Quality and Environmental Management (DAQEM): (702) 455-5942