1. Attribution of Haze Report Status Fire Emissions Joint Forum Meeting December 8, 2004 Tom Moore Marc Pitchford

2. Attribution of Haze Work Group: Phase I (ARS) The overall objective of the Attribution of Haze project is to prepare a policy-level report describing the emission source categories and geographic source regions presently contributing to visibility impairment, at each of the over 100 federal and tribal Class I areas in the WRAP region. Air Resource Specialists, Inc. (ARS), was contracted to prepare this report for Phase I of the project, expected to be completed in January 2005. The Phase I report will provide state and tribal air regulators with an initial detailed assessment of the geographic regions and source categories affecting the Class I areas for which they are responsible and will be an integral part of the interactive process the WRAP will pursue toward providing regulators with the information and tools they need to meet the 2007 regional haze plan deadline. For more information regarding the Phase I AoH report, please contact Joe Adlhoch at ARS.Joe Adlhoch ARS AoH Proposal (6/8/2004) PDFPDF ARS Presentation, Denver Meeting (7/23/2004) PPTPPT ARS Presentation, Call 1 (8/10/2004) PPTPPT ARS Presentation, Call 2 (8/24/2004) PPTPPT ARS Presentation, Call 3 (9/7/2004) PPTPPT Revised Agenda for AoH Workgroup Meeting (9/21-9/22/2004) PDFPDF WRAP AoH Meeting, part 1a PPT, part 1b PDF, part 2 PPT, part 3 PPT (9/21-9/22/2004)PPTPDFPPT WRAP AoH Conference Call (10/8/2004) PPTPPT DRAFT Agenda for Las Vegas Meeting DOCDOC WRAP AoH Conference Call (10/22/2004) PDFPDF WRAP Meeting (Las Vegas) (11/16/2004) PDFPDF WRAP Meeting (Las Vegas), part 1 PDF, part 2 PDF (11/18/2004)PDF Projects Phase I (ARS) Reports AoH Gateway Report (Draft)AoH Gateway Report (Draft) State Reports Tribal Reports Individual Class I ReportsIndividual Class I Reports EI Summary ProductsEI Summary Products Mass and Visibility MapsMass and Visibility Maps Links Causes of Haze ProjectCauses of Haze Project Regional Modeling CenterRegional Modeling Center AoH Emissions InventoriesAoH Emissions Inventories WRAP EDMS VIEWS visibility web siteVIEWS visibility web site IMPROVE web siteIMPROVE web site WinHaze Visual Air Quality ModelerWinHaze Visual Air Quality Modeler APACE web site

3. AoH Report - schedule December 14 th – roll out draft report at SSJF/IWG meeting December 15 th through January 20 th – Draft report out for review and comment Comments to be collected/summarized/addressed by ARS and AoH Workgroup http://www.wrapair.org/forums/aoh/ars1/index.html End of January 2005 – Final Report

4. Example Regional Class I area Groupings Report Page

5. Example State Report Page Colorado Attribution of Haze Project

6. Example Class I area Report Page Rocky Mountain National Park Individual Class I Area Report Attribution of Haze Project Rocky Mountain National Park is located abreast the Continental Divide in north central Colorado. Terrain is mountainous and varied, with elevations ranging from near 2,500 m (8,000 ft) at valley bottoms to a high of 4,347 m (14,259 ft) at Long's Peak. Due to its location on the Divide, the western slope is directly impacted by prevailing westerly winds and receives more precipitation than the eastern slope which is in the rain shadow of the Rockies. The town of Estes Park averages 13.1 inches of precipitation; the town of Grand Lake 19.95 inches per year. The National Park includes the headwaters of the westward flowing Colorado River and eastward flowing Cache la Poudre and Thompson Rivers. An IMPROVE monitoring site, ROMO1, is just east of the Park boundary, at an elevation near 2,750 m (9,020 ft).

7. Valid 2002 Reconstructed Light Extinction Monitoring Data – Crater Lake NP

8. All 2002 Monitoring Data: Crater Lake NP

9. 2002 Modeling Data – Crater Lake NP

10. Valid 2002 Reconstructed Light Extinction Monitoring Data – Great Sand Dunes NP

11. All 2002 Monitoring Data – Great Sand Dunes NP

12. 2002 Modeling Data – Great Sand Dunes NP