1. Phase II Enhanced Gasoline Vapor Recovery and In-Station Diagnostics
Dillon Collins
Senior Air Quality Inspector
San Joaquin Valley Air Pollution Control District
February 19, 2009

2. Gasoline Vapor Recovery
Vapors return to truck
Vapors return to tank
Phase II
Phase I

3. History of Vapor Recovery
1972 and 1973
BAAQMD and SDCAPCD adopt regulations requiring vapor recovery systems
1974
Health and Safety Code adopted to establish CA vapor recovery equipment certification program

4. History of Vapor Recovery
1987
Benzene Air Toxic Control Measure is adopted which requires vapor recovery at any CA station that pumps greater than 480,000 gallons/year

5. History of Vapor Recovery
1990
The Federal Clean Air Act requires the installation of gasoline vapor recovery systems at stations with a throughput greater than 100,000 gals/month in ozone nonattainment areas across the United States AND Onboard Refueling Vapor Recovery on vehicles

6. History of Vapor Recovery
1998
First ORVR cars sold
2000
California Air Resources Board approves Enhanced Vapor Recovery

7. The Benefits of Vapor Recovery
• 16 billion gallons/year CA gasoline sales
Uncontrolled emissions of 8.4 lbs of gasoline vapor for each 1000 gallons gasoline transferred
347 tons/day vapor recovery emission reductions from pre-EVR systems
25 tons/day from Enhanced Vapor Recovery
Total Benefit: 372 tons/day or 120,000 gallons liquid gas/day or $360,000 savings/day ($3.00/gal)

8. Enhanced Vapor Recovery
By April 1, 2009, nearly 13,000 gasoline dispensing facilities in California will need to obtain permits, purchase EVR equipment, and have the installation performed by a certified contractor.

9. Enhanced Vapor Recovery
• Approved Phase II EVR systems are certified to be at least 95% efficient at controlling vapors and to not allow more than 0.38 pounds of hydrocarbons per 1000 gallons dispensed to be released

11. Why Enhanced Vapor Recovery?
• Equipment in field not working as certified
State Implementation Plan emission reductions settlement agreement
Incompatibility of some systems with Onboard Refueling Vapor Recovery (ORVR)
EVR addresses all of these areas!

12. EVR Improvements • More stringent certification requirements
“Dripless” nozzles – less spillage
Control of fugitive emissions
Better components – less system leaks
Compatible with vapor recovery systems on newer vehicles (ORVR)
Vapor recovery system monitor (ISD)

13. In-Station Diagnostics (ISD)
Equipment is designed to monitor the collection and containment of vapors by vapor recovery equipment.
ISD software continuously monitors the vapor recovery equipment, maintains test records, provides test reports, generates alarms following test/equipment failures, and shuts down the site upon the occurrence of designated alarms.

14. In-Station Diagnostics (ISD)
Automatically notifies station operator of system failures
Indirectly reduces emissions by early detection and prompt repair
Supplements district inspections
Ties in to existing UST leak monitors

15. ISD Implementation Deadlines
> 1.8 million
gallons/yr
September
2009
600,000 – 1.8 million
gallons/yr
September
2010
< 600,000
gallons/yr
Exempt
From ISD

16. Certified ISD Systems

17. Veeder Root In-Station Diagnostics

18. INCON Vapor Recovery Monitoring (VRM)

19. ISD System Components Console Monitoring Software Vapor Flow Meter
Vapor Pressure Sensor
Interface and Output Modules

20. Console

21. Vapor Flow Meter
VFM measures the volume of gasoline vapor returned from a vehicle during gasoline dispensing episodes.

22. Vapor Flow Meter

23. Vapor Pressure Sensor
INCON
Veeder Root

25. Dispenser Interface Module
Dispenser Interface Module (DIM) collects data for the volume of liquid gasoline delivered during each dispensing event

29. Assessment of ISD Implementation (as evaluated by CARB, Sept. 2008)
ISD is detecting performance degradation
- Confirmed by compliance testing
District and contractors gaining familiarity with accessing and understanding reports
Further guidance needed for alarms
Contractors being strained with response calls
- Required to respond to warnings where no problems are found that warrant repair
- Impacting ability to upgrade facilities for EVR deadline

30. Certified Phase II EVR Systems
Two systems currently certified
Healy EVR Phase II System (assist)
Not including ISD: VR-201
Including ISD: VR-202
VST EVR Phase II System (balance)
Not including ISD: VR-203
Including ISD: VR-204
Other systems currently in cert process
Takes about 1 year to complete certification

31. Healy Phase II Enhanced Vapor Recovery System
CARB Executive Orders VR-201/202

32. System Components Nozzle- Healy Model 900 Hose- Inverted Coaxial
Vapor path on interior/ product outside
Clean Air Separator
Dispenser Vacuum Pump (Model VP1000)

33. Healy Model 900 Nozzle

34. Healy Inverted Coaxial Hose

35. Healy Clean Air Separator

36. Clean Air Separator
Healy Systems Clean Air Separator (CAS) consists of a 400 gallon steel vapor processor vessel that contains a fuel resistant bladder to hold excess gasoline vapors that may develop in gasoline storage tanks during idle periods of gasoline dispensing facility operation

38. Healy Model VP 1000 Vacuum Pump
Vapor return line

39. CARB Executive Orders VR-203/204
Vapor Systems Technologies (VST) Phase II Enhanced Vapor Recovery System
CARB Executive Orders VR-203/204

40. System Components Nozzle- Model VST EVR-NB Hose- Coaxial
Pressure Management Control (PMC)
PMC Pressure Sensor
VST Membrane Processor Or;
Veeder Root Vapor Filter
Vapor Polisher (“carbon canister”)

41. VST Model VST EVR-NB Nozzle

42. VST Coaxial Hose with Liquid Removal Device (Venturi)
Venturi creates a vacuum in the fuel line and uses small tubing to extract condensation and excess fuel from the vapor line, preventing blockages in the vapor path

43. Pressure Management Control (PMC)

44. Veeder Root Vapor Polisher
VST Membrane Processor
Veeder Root Vapor Polisher

45. Membrane Processor Function
Separates fresh air from hydrocarbons and pumps fresh air from the UST while returning greater than 99% of the VOC's to the vapor containment system
Reduces vapor growth and allows the storage system to maintain a constant negative pressure

46. Vapor Polisher Function
Mounts directly onto station’s existing vent riser and is tapped into the vapor containment space
Activated carbon filters vapors from the vent pipe entering through an inlet at the bottom of the canister, removing hydrocarbons
Releases cleansed air, reducing the pressure in the underground storage tank
Operation monitored through a control module interfaced to the TLS-350

47. Vapor Polisher Function
When UST pressure goes positive
TLS 350 opens output port valve of the canister allowing vapor to enter
Vapor flows through and hydrocarbons are captured by active carbon inside
UST pressure falls

48. Vapor Polisher Function
When UST pressure goes negative
TLS 350 opens output port valve of the canister allowing fresh air to enter
Fresh air flows through and hydrocarbons are removed from carbon and returned to UST
Evaporative loss reduced

49. Estimated Cost for Phase II EVR and ISD Upgrades
Number of Dispensers 2 4 6 12
EVR Phase II
$17,240
$24,925
$32,765
$56,285
ISD
$13,600
$16,500
$19,700
$28,900
Total (to nearest $100)
$30,800
$41,400
$52,500
$85,200
Does not include cost to replace dispensers, obtain
permits, install electrical lines or conduct start-up tests

50. Questions?

51. District Office Contacts
Northern Region
Dillon Collins
4800 Enterprise Way
Modesto, CA
(209) Fax: (209)
Central Region
Rob Vinson
1990 E Gettysburg
Fresno, CA
(559) Fax (559)
Southern Region
Vernon McKnight
34946 Flyover Ct.
Bakersfield, CA
(661) Fax: (661)