WESTAR Technical Committee Report

WESTAR Spring Business Meeting22 – 23 May 2013, San Francisco, CA

Clint Bowman & Phil Allen, Co-Chairs

Review of Past Six MonthsCoordination

Comments

Training

Studies

Information/Discussion

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

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)

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

1-hour NO2 letter Comments on Chet Wayland's reply to

WESTAR's comments on the NO2 NAAQS

CommentsReview of Past Six Months

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

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

StudiesReview of Past Six Months

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

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

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Continued discussion of the Draft Guidance for PM2.5 Permit Modeling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

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