The ARB is preparing drafts health risk assessments (HRA) for major railyards across the state. Information on the drafts HRAs is provided here.  To access the Community Meeting announcements regarding the HRAs please go to the Community web page.

Railyard HRAs:

• Union Pacific Railroad (UP)
  • Oakland (April 22, 2008)
  • HRA for the UP Oakland Railyard (PDF - 8.5mb)
  • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 4.9mb)
  • City of Industry (April 18, 2008)
  • HRA for the UP City of Industry Railyard (PDF - 6.9mb)
  • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 7.3mb)
  • ARB Staff Presentation (PDF - 4.4mb)
  • UP Presentation (PDF - 600k)
  • Colton (April 18, 2008)
  • HRA for the UP Colton Railyard (PDF - 6.7mb)
  • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 2.3mb)
  • ARB Staff Presentation (PDF - 2.4mb)
  • UP Presentation (PDF - 600k)
  • ICTF and Dolores (April 22, 2008)
  • HRA for the UP ICTF and Dolores Railyards (PDF - 7.1mb)
  • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 15.5mb)
  • ARB Staff Presentation (PDF - 3.6mb)
  • UP Presentation (PDF - 600k)
  • Roseville (2004)
    • HRA for the Union Pacific J.R. Davis Yard.
    • Rail Yard Emission Reduction Activities by the Placer County Air Pollution Control District.
  • Commerce (November 7, 2007)  
    • HRA for the UP Commerce Railyard (PDF - 9.4mb)
    • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 13mb)
  • LATC (November 6, 2007)  
    • HRA for the UP LATC Railyard (PDF - 9.1mb)
    • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 13mb)
    • ARB Staff Presentation (May 2007) (PDF - 1.5mb)
    • ARB Staff Presentation (June 2007) (PDF - 2.75mb)
  • Mira Loma (November 6, 2007)  
    • HRA for the UP Mira Loma Railyard (PDF - 7.3mb)
    • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 9.1mb)
    • ARB Staff Presentation (May 2007) (PDF - 1.6mb)
    • ARB Staff Presentation (June 2007) (PDF - 3.05mb)
    • UP Presentation (PDF - 382k)
  • Stockton (November 20, 2007)  
    • HRA for the UP Stockton Railyard (PDF - 8.45mb)
    • Toxic Air Contaminant Emissions and Dispersion Modeling Report - Sierra Research (PDF - 11.33mb)
    • ARB Staff Presentation (May 2007) (PDF - 3.7mb)
    • ARB Staff Presentation (July2007) (PDF-3.5mb)
    • UP Presentation (PDF - 360k)

• BNSF Railway (BNSF)
  • BNSF San Bernardino
  • Draft HRA for the BNSF San Bernardino Railyard (PDF - 7.03mb)
  • ARB Staff Presentation (PDF - 1.5mb)
  • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 18.2mb)
  • Emissions Inventory - ENVIRON International Report (PDF - 2.5mb)
  • BNSF Barstow
  • Draft HRA for the BNSF Barstow Railyard (PDF - 7.3mb)
  • ARB Staff Presentation (PDF - 5.2mb)
  • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 10.4mb)
  • Emissions Inventory - ENVIRON International Report (PDF - 2.6mb)
  • BNSF San Diego
  • Draft HRA for the BNSF San Diego Railyard (PDF - 4.03mb)
  • ARB Staff Presentation (PDF - 5.8mb)
  • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 13.4mb)
  • Emissions Inventory - ENVIRON International Report (PDF - 335k)
  • 4 Combined Commerce Railyards (UP Commerce, BNSF Hobart, BNSF Eastern, and BNSF Sheila) 
    • HRA for the 4 Commerce Area Railyards (PDF - 4.8mb)
    • ARB Staff Presentation (May 2007) (PDF - 9.6mb)
    • ARB Staff Presentation (June 2007) (PDF - 1.37mb)
    • BNSF Presentation (PDF - 931k)
    • UP Presentation (PDF - 407k)
  • Hobart (November 2, 2007) 
    • HRA for the BNSF Hobart Railyard (PDF - 5.6mb)
    • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 10.4mb)
    • Emissions Inventory - ENVIRON International Report (PDF - 2.6mb)
  • Commerce Eastern (November 2, 2007) 
    • HRA for the BNSF Commerce Eastern Railyard (PDF - 11.2mb)
    • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 8.6mb)
    • Emissions Inventory - ENVIRON International Report (PDF - 2.3mb)
  • Sheila Mechanical Facility (November 2, 2007) 
    • HRA for the BNSF Sheila Railyard (PDF - 7.1mb)
    • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 31.8mb)
    • Emissions Inventory - ENVIRON International Report (PDF - 2.3mb)
  • Watson (November 2, 2007) 
    • HRA for the BNSF Watson Railyard (PDF - 3.75mb)
    • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 29.3mb)
    • Emissions Inventory - ENVIRON International Report (PDF - 1.8mb)
    • ARB Staff Presentation (May 2007) (PDF - 1.3mb)
    • ARB Staff Presentation (June 2007) (PDF - 873kb)
  • Stockton (November 20, 2007)  
    • HRA for the BNSF Stockton Railyard (PDF - 3.90mb)
    • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 75.6mb)
    • Emissions Inventory - ENVIRON International Report (PDF - 2.0mb)
    • ARB Staff Presentation (PDF - 3.7mb)
    • BNSF Presentation (PDF - 156k)
  • Richmond (November 20, 2007)   
    • HRA for the BNSF Richmond Railyard (PDF - 13.9mb)
    • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 17.9mb)
    • Emissions Inventory - ENVIRON International Report (PDF - 2.3mb)
    • ARB Staff Presentation (June 2007) (PDF - 1.9mb)
    • ARB Staff Presentation (July 2007) (PDF -1.5mb)
• Others
  • San Diego (2005) Draft Health Risk Assessment San Diego & Imperial Valley Railroad - San Diego Yard Impact to Ballpark Village Project (PDF-1,300k)
  • ARB's Emission Reduction Plan for Ports and Goods Movement 
    

Fact Sheets:

• 2008
  • Release of the California's Draft Health Risk Assessments in Southern California (April 2008) - English (PDF-82k)
  • Release of the California's Draft Health Risk Assessments in Southern California (March 2008) - English (PDF-65k)
  • Strategies to Reduce Locomotives and Associated Railyards Emissions (March 2008) - English (PDF-53k)
  • Health Risk Assessments for Railyards (March 2008) - English (PDF-60k)
• 2007 
  • Release of the California's Draft Health Risk Assessments in Southern California (May 2007) - English (PDF-49k), Spanish (PDF-52k)
  • Release of the California's Draft Health Risk Assessments in Northern California (June 2007) (PDF-46k)
  • Strategies to Reduce Locomotives and Associated Railyards Emissions (May 2007) - English (PDF-46k), Spanish (PDF-52k)
  • Health Risk Assessments for Railyards (May 2007) - English (PDF-55k)
• 2006
• Health Risk Assessments for Railyards (Dec 2006) (PDF-57k)

OEHHA Air Toxics Hot Spots Program Risk Assessment Guidelines

• ARB Health Risk Assessment Guidelines (Release date: November, 2007) 
  • ARB Railyard Health Risk Assessment Guidelines (PDF-209k)
  • ARB Emission Inventory Methodology (PDF-276k)
• Final Draft ARB Health Risk Assessment Guidelines (Release date: September, 2006)
  • Final Draft ARB Railyard Health Risk Assessment Guidelines
  • Final Draft Emission Inventory Methodology
• Public Meetings for comments about the Drafts HRA Guidelines and Emission Inventory Methodology
  • August 28, 2006 from 2:00 P.M. in Sacramento. For more information...
  • August 30, 2006 from 6:00 P.M. in City of Commerce. For more information...
• Preliminary Draft ARB Health Risk Assessment Guidelines (Release date: July 18, 2006)
  • Draft ARB Railyard Health Risk Assessment Guidelines 
  • Draft Emission Inventory Methodology