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Questions for EPA

Questions for EPA. Emissions Discussion Group November 6, 2003. Interactive Discussion on EIs for SIPs. Major topic areas SIP EI reporting Guidance Motor vehicles Point sources Others ?. Interactive Discussion on EIs for SIPs. SIP EI reporting questions Regulatory EIs Modeling EIs

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Questions for EPA

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  1. Questions for EPA Emissions Discussion Group November 6, 2003

  2. Interactive Discussion on EIs for SIPs • Major topic areas • SIP EI reporting • Guidance • Motor vehicles • Point sources • Others ?

  3. Interactive Discussion on EIs for SIPs • SIP EI reporting questions • Regulatory EIs • Modeling EIs • Base cases 2002 (performance and baseline period) • Base case projection 2018 • Control strategy EIs (plural) • SIP EIs for RH / Ozone / PM2.5 plans • What is needed/wanted by EPA and when? • What is the best process to communicate about the status of these EIs with EPA? • Others ?

  4. Interactive Discussion on EIs for SIPs • EPA guidance questions • Use of transport fractions • Updates to SMOKE and CMAQ • Identification of bugs/problems in SMOKE and CMAQ • Biogenics shown in 2002 NEI vs. “attenuated” biogenics used for modeling (including Dust, NH3) • Interaction for input from RPOs on improving 2002 NEI numbers • Display and uses of EPA transport rule EI and modeling results • Others ?

  5. Interactive Discussion on EIs for SIPs • Mobile sources • Specific list of area/nonroad categories to include • New motor vehicle ammonia emission factor status, effect of low-sulfur gasoline • Use of state- and RPO-specific mobile emissions into 2002 NEI CERR process • Timeline for Nonroad Rule, reasonable assumptions about use of the proposed control program • Vessels, other nonroad categories not in NONROAD model • NMIM release date • Others ?

  6. Interactive Discussion on EIs for SIPs • Point Sources • CEM data versus states’ EGU inventories • Information about existing control technologies • Heat input • Flow rates • Stack parameters • Could CEM data be used as surrogates for PM, NH3? • Others ?

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