1. Diesel Emissions

2. Emissions Task Force Divided into 6 sub groups  Locomotive Group  Car Group  Ventilation Group  Fuel Group  Emissions Testing Group  Funding Group

3. Metra's Testing Timeline 3 Phases Phase 1 – Rail cars Phase 2 – Station Platforms Phase 3 – Engineer locomotive cabs, cab cars, and shops

4. Phase 1 – Rail Cars Three sampling sites per train, first two cars after engine and rear cab car Testing runs already completed on Rock Island, Burlington Northern, Milwaukee District, and Union Pacific as of this week.

5. Diesel Exhaust Components Particulate matter Polynuclear aromatic hydrocarbons Carbon (elemental and organic) Aldehydes Benzene Carbon monoxide Nitric Oxide Nitrogen Dioxide Sulfur Dioxide

6. Metra's Testing Protocol Direct read instruments  Provides real time data collection  Sampling for Total Particulate, PM 2.5, Carbon, Carbon Monoxide, Nitric Oxide, Nitrogen Dioxide, and Sulfur Dioxide  Includes same aethalometer used in Tribune article

7. Metra's Testing Protocol Active sampling instruments  Provides laboratory analytical results  Sampling for Polynuclear Aromatic Hydrocarbons, Benzene Vapors and Carbon

8. Metra's Testing Protocol Metra Locomotive Tiers  Unregulated  Tier 0  Tier 0+  Tier 1

9. Relevant Regulatory Agencies EPA – Environmental Protection Agency  Establishes National Ambient Air Quality Standards  Establishes Locomotive Standards

10. Relevant Regulatory Agencies OSHA – Occupational Safety and Health Administration  Deals with occupational exposure and establishes permissible exposure limits for employees

11. Relevant Regulatory Agencies No exposure guidelines for elemental carbon or black soot have been established for the general public (Metra's ridership)

12. Metra In-House Committees All Groups have had a committee meeting Emissions Testing Group  Established no regulatory agency has a threshold for carbon 2.5 or nano-particles and therefore has no level established  Asking group to come up with recommendation based on a study or guideline

13. Metra In-House Committees Locomotive Group  Exhaust after treatment (Doc) 25% particulate reduction on Tier 0, Tier 1, Tier 0+  Engine changes to turbocharger and possible injectors

14. Metra In-House Committees Car Group  Filters  Air intake on cars  Car pressurization  Ventilation design of older cars for future changes during rehabilitation

15. Metra In-House Committees Ventilation Group  Working with Amtrak to discuss contracts and agreements with adjacent building owners for maintenance and operation at CUS  Procedures for shutting down equipment and using standby power at all locations

16. Metra In-House Committees Fuel Group  Switching to Ultra Low Sulfur Diesel Fuel (ULSD) April 1, 2011 Has industry proven reduction in particulate of 8%  Fuel additives were discussed and not a verifiable reduction  Alternate fuels Grants have recently been awarded to look at Bio-Diesel

17. Metra In-House Committees Funding Group  Small allocation are only available which we will pursue  Metra’s needs are significant to reduce these emissions and will require a large capital investment

18. Phase 2 – Station Platforms Air sampling completed at Chicago Union Station in July 2010 Sampling to be performed at Ogilvie Transportation Center and LaSalle Street Station in January 2011

19. Phase 3 – Engineer Cab Cars Plans to test engineer locomotive cab and cab cars after station platforms Identify any engineer exposure during a work day Test our shops and layover facilities