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February 10, 2004 PowerPoint Presentation
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February 10, 2004

February 10, 2004

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February 10, 2004

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  1. Aboveground Storage TankEnhanced Vapor Recovery February 10, 2004

  2. Agenda Welcome and Introductions Background Overview Rulemaking Schedule Contact Information Open Discussion

  3. Background • AST systems have been a source of emissions in the field due to: • component failures • exposure to harsh environment • maintenance and reliability problems

  4. Overview • The basic EVR proposal includes several key components • Improved components through extended testing • Pressure management system to control fugitive emission • More stringent pressure decay requirement (TP-206.3)

  5. Improving Component Reliability New requirement includes a 180-day testing period. Underground storage tank EVR product improvements expected to be applied to ASTs

  6. Pressure Management Information Proposed rulemaking includes a -0.5 pressure requirement Phase II Hirt System currently being monitored for processor run information

  7. Pressure Decay Procedure TP-206.3 Tightens up the allowable leakage for systems Enables testing of tanks with a 100-gallon ullage Updates instruments, calibration and gauges for testing

  8. Phase I Only • District rules exempt tanks from Phase II based on: • size of tank (250 to 550 gallons is common) • installation date of tank • throughput of system • Phase I Certification provides • improved EVR components for smaller tanks • reduced costs to some smaller tanks

  9. AST Tank Inventory Inventory of 7633 represents approximately one-sixth of fuel carriers reporting information Better tank size distribution desired - input from stakeholders welcomed

  10. Rulemaking Schedule Staff report is scheduled to be released on March 5, 2004 Board Hearing Date: April 25, 2004

  11. Contact Stephanie Connelly Monitoring and Laboratory Division California Air Resources Board P.O. Box 2815 Sacramento, CA 95812 (916) 445-9308 saconnel@arb.ca.gov www.arb.ca.gov/vapor/ast/ast.htm