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WESTAR Technical Committee Report

WESTAR Spring Business Meeting 22 – 23 May 2013, San Francisco, CA Clint Bowman & Phil Allen, Co-Chairs. WESTAR Technical Committee Report. Review of Past Six Months. Coordination Comments Training Studies Information/Discussion. Coordination Review of Past Six Months.

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WESTAR Technical Committee Report

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  1. WESTAR Spring Business Meeting 22 – 23 May 2013, San Francisco, CA Clint Bowman & Phil Allen, Co-Chairs WESTAR Technical Committee Report

  2. Review of Past Six Months • Coordination • Comments • Training • Studies • Information/Discussion

  3. CoordinationReview of Past Six Months • Reviewed and discussed WEB-based air quality data • Most states use commercial products • Some have peak rates of nearly one million per month • MesoWest interested in being regional aggregator • Inter-state coordination of wildfire information

  4. CoordinationReview of Past Six Months • Possible WESTAR clearinghouse for exceptional events: • Ozone intrusions • Wildfire-related events • Regional source produced events • Continued discussion of the 1-hour SO2 NAAQS • Responses to the 120-day letter for 1-hour SO2 • State responses in unclassifiable areas • Making maps (WA) • Waiting (Others)

  5. CoordinationReview of Past Six Months • Further discussion of ozone events • Templates and clearinghouses • Types of exceptional events (dust, wildfires, Asian) • Characteristics of each • Value of an ongoing database • WestJumpAQMS – WRAP

  6. CommentsReview of Past Six Months • 1-hour NO2 letter • Comments on Chet Wayland's reply to WESTAR's comments on the NO2 NAAQS

  7. TrainingReview of Past Six Months • Late April 2013 NASA satellite training workshop in Salt Lake City • Announced Western states workshop—2nd week of July 2013 in Boulder, CO • HY-SPLIT training in the West • Not in budget

  8. StudiesReview of Past Six Months • Modeling vertical cylinders (tanks) • Utah report on oil and gas emissions in Unitah Basin • Oregon DEQ residential wood heating (RWH) survey • Potential collaboration with Washington and Idaho • SCRAM and Linux distributions

  9. Information/DiscussionReview of Past Six Months • Review and discussion of the 2013 EPA Regional/State/Local Modelers' Workshop • General accolades for developing a matrix of topics to direct OAQPS efforts • Discussed implications of the DC Court Decision • Impact of the revocation of the SILs and SMCs • Impact on air quality analyses for PSD

  10. Information/DiscussionReview of Past Six Months • Discussion of implications on air quality modeling of the proposed QMP/QAPP rules • New wording could include permit modeling • Update on the status of IMPROVE budget cuts • Many Western states rely on IMPROVE data

  11. Information/DiscussionReview of Past Six Months • Continued discussion of the Draft Guidance for PM2.5 Permit Modeling • Importance of precursors • Need for tools to evaluate impacts of precursors • Background concentrations

  12. Looking Ahead The Next Six Months • Continue to follow the evolving PM2.5 Guidance • Special emphasis on secondaries and background concentrations • Review and comment on OAQPS's workload matrix • Continue to review the evolving 1-hour SO2 landscape • Other as directed by WESTAR or events

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