Gasoline Vapor Recovery

 

What is Vapor Recovery?

Vapor recovery is the process of capturing the saturated gasoline vapors that would otherwise escape into the environment and pollute the air. Stage I vapor recovery systems are designed to collect gasoline vapors that are displaced from the storage tank when a fuel truck makes a delivery. Stage II vapor recovery systems are designed to collect gasoline vapors that are displaced from the vehicle fuel tank when a customer dispenses fuel from a gas pump.

 

Are You Impacted?

Yes, if you are a gasoline dispensing site located within Area A that pumps at least 10,000 gallons of gasoline per month (vapor recovery requirements do not apply to gas stations owned and operated by tribal members on Native American reservations). If you pump less than 10,000 gallons per month, you must file a monthly Throughput Report by March 30 of each year for the previous calendar year (A.A.C. R3-7-1002(B)). You may submit your throughput report online.

 

Initial Installation or Major Modification of Vapor Recovery Systems

A person shall not begin to construct a site in Area A requiring a vapor recovery system, or make a major modification to an existing vapor recovery system or component, before obtaining approval of an Authority to Cosntruct (ATC) permit. The construction plan must be submitted to the Division for review and along with a $250 application fee. You may apply for an ATC permit online using the location's BMF (license) number. If the location does not have a BMF number, please contact Weights and Measures licensing at 602-542-3578 or [email protected].

Once the plan is approved and an ATC permit is issued, inspection of the site is required:

  • Prior to burial of vapor recovery equipment (pre-burial);
  • within 90 days of the date when the site starts gasoline sales (initial inspection);
  • and annually thereafter (annual inspection).

Inspections must be scheduled with the Division, and may be scheduled online. There is no fee for any inspection.

 

Inspection & Maintenance Logs

Locations operating Stage I or Stage II vapor recovery equipment are required to maintain inspection and maintenance logs. Site representatives at Stage I vapor recovery sites must peform an inspection of their vapor recovery system once every 7 days. Site representatives at Stage II vapor recovery sites must perform a daily inspection of their vapor recovery system. Maintenance logs must be maintained and updated anytime a component of a vapor recovery system is repaired or replaced. All inspection and maintenance logs must be kept on-site and made available for review by the Division for a period of one year.

 

Annual Test

In Area A, annual vapor recovery system tests are required to ensure that the vapor recovery equipment is working properly. These tests are conducted by an Registered Service Agency (RSA) who is licensed with the Division to install, repair, and test vapor recovery equipment. The retailer is responsible for all testing costs associated with the independent contractor, and there are no inspection fees required by the Division. Tests must be scheduled in advance with the Division using our Vapor Scheduler, and a Division investigator may witness the test. 

For Stage II vapor recovery systems, the required CARB test procedures include:  

  • Pressure Decay Test
  • Air to Liquid Ratio (A/L) Test
  • Liquid Blockage Test
  • Communication and Back Pressure Test
  • Pressure/Vacuum (P/V) Vent Valve Test

For Stage I vapor recovery systems, the required CARB test procedures include:

  • Pressure Decay Test
  • Tie-Tank Test
  • Pressure/Vacuum (P/V) Vent Valve Test

The Division requires that the annual test be scheduled any time during the month that is the same month the test occured in the previous year. For example, if a location was tested on August 3, 2016, the next annual test must occur any time between August 1, 2017 and August 31, 2017.

 

Compliance Inspections

In addition to the annual test, the Division may conduct unannounced compliance inspections. These inspections determine if all vapor recovery components are CARB certified and defect free, all inspection and maintenance logs are properly maintained and available for review, and all spill containment buckets are free of liquid and/or debris and functioning properly.

 

 

 

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The following procedures are used for sites that have stage I only installed:

After October 6, 2015, sites that have either been constructed with stage I equipment only or after October 1, 2016, sites that decommission stage II systems shall use the following test procedures for testing the stage I equipment.

Procedures

Procedure

Description

Date

TP-201.3

Determination of 2 Inch WC Static Pressure Performance of Vapor Recovery Systems of Dispensing Facilities

July 26, 2012

TP-201.1E

Leak Rate and Cracking Pressure of Pressure/Vacuum Vent Valves

October 8, 2003

TP-201.3C

Determination of Piping Connections to Underground Gasoline Storage Tanks (Tie-Tank Test)

March 17, 1999

The Following Procedures Are Used for Stage II Tests:

TP-91-1 Pressure Decay/Leak Test Procedure, Phase I and Phase II Vapor Recovery Installations. Download
TP-91-1 Pressure Decay/Leak Test Procedure, Phase I and Phase II Vapor Recovery Installations. Download
TP-201.2B Determination of Flow Versus Pressure for Equipment in Phase II Vapory Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.2C Determination of Spillage of Phase II Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.4 Determination of Dynamic Pressure Performance of Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.5 Determination (by Volume Meter) of Air to Liquid Volume Ratio of Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.6 Determination of Liquid Removal of Phase II Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-96-1 San Diego County Static Pressure Leak Test Procedure. Download
TG-1 Technical Guidance Download
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