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Fine Particulate Matter SIP for Washington DC. Special Stakeholder Meeting February 20, 2008. Discussion Topics. Background Air Quality Trends SIP Content Modeling Results Local Emissions Trends Conclusions. PM 2.5 SIP Background. Standards - 15 µg/m 3 (annual) & 65 µg/m 3 (daily)

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fine particulate matter sip for washington dc

Fine Particulate Matter SIP for Washington DC

Special Stakeholder Meeting

February 20, 2008

discussion topics
Discussion Topics
  • Background
  • Air Quality Trends
  • SIP Content
  • Modeling Results
  • Local Emissions Trends
  • Conclusions
pm 2 5 sip background
PM2.5 SIP Background
  • Standards - 15 µg/m3(annual)& 65 µg/m3 (daily)
  • DC area designated nonattainment in 2004
    • All NOVA monitors in compliance
    • Influence on DC cited for inclusion
  • Monitored air quality continues to improve
  • SIP process began - Spring 2007
  • Draft SIP completed – Dec 2007
  • Public review/comment – Jan 2008
sip content results
SIP Content & Results
  • Combination emission reduction measures
    • Local point, mobile, & nonroad reductions
    • Significant regional reductions of SO2 & NOX
  • Attainment demonstrated by 2009 using regional modeling
    • Results consist with other modeling efforts
  • All other SIP requirements met
    • RACM analysis
    • Conformity budgets
    • Contingency measures
local emissions reductions nova point sources
Local Emissions Reductions NOVA Point Sources

SO2: - 32,935 TPY

NOX: - 8,749 TPY

conclusions
Conclusions
  • DC area has a more than adequate monitoring network
  • Entire area currently monitoring attainment with annual standard
  • No EPA defined “hotspots” exist
  • Model predicted attainment of all standards by 2009
  • Complete & fully approvable SIP
local area analysis laa
Local Area Analysis (LAA)
  • Perceived local “hotspot” at PRGS
  • Onsite monitoring underway
  • No monitored evidence of hotspot exists
  • LAA not required by EPA guidance
  • Comprehensive permit for PRGS in process
  • Bottom line – permit the appropriate mechanism to resolve any local issues
mirant prgs monitoring
Mirant PRGS Monitoring
  • PM2.5 FRM
  • PM2.5 Continuous
  • PM2.5 EBAM
  • Two SO2 Monitors
  • Results to date consistent with attainment (2007)
    • Annual: 13.5
    • Daily: 32
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