Railyard Health Risk Assessments and Mitigation Measures

This page last reviewed October 18, 2011

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 and Mitigation Plans:

Union Pacific Railroad
BNSF Railway
  • San Bernardino
  • Barstow
  • San Diego
  • 4 Combined Commerce Railyards (UP Commerce, BNSF Hobart, BNSF Eastern, and BNSF Sheila)
  • Hobart
    • Health Risk Assessment (2007)
      • HRA for the BNSF Hobart Railyard (PDF - 5.6mb) (November 2, 2007)
      • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 10.4mb)
      • Emissions Inventory - ENVIRON International Report (PDF - 2.6mb)
    • Mitigation Plan (2008)
  • Commerce Eastern
    • Health Risk Assessment (2007)
      • HRA for the BNSF Commerce Eastern Railyard (PDF - 11.2mb) (November 2, 2007)
      • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 8.6mb)
      • Emissions Inventory - ENVIRON International Report (PDF - 2.3mb)
    • Mitigation Plan (2008)
  • Sheila Mechanical Facility
    • Health Risk Assessment (2007)
      • HRA for the BNSF Sheila Railyard (PDF - 7.1mb) (November 2, 2007)
      • Air Dispersion Modeling Assessment of Air Toxic Emissions - ENVIRON International (PDF - 31.8mb)
      • Emissions Inventory - ENVIRON International Report (PDF - 2.3mb)
    • Mitigation Plan (2008)
  • Watson
  • Stockton
  • Richmond 
Other Health Risk Assesments
  • West Oakland Study (2008): 
    • West Oakland Community Diesel PM Health Risk Assessment (PDF - 3.7mb)
  • Ports of LA and Long Beach Study (2006):
    •  Diesel Particulate Matter Exposure Assessment Study for the Ports of Los Angeles and Long Beach (PDF - 8.4mb)
  • 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

Meeting/ Activities about Health Risk Assessments
  • RB 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
  • Preliminary Draft ARB Health Risk Assessment Guidelines (Release date: July 18, 2006)
    • Draft ARB Railyard Health Risk Assessment Guidelines 
    • Draft Emission Inventory Methodology
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