May 22, 2001


Aboveground Storage Tanks Vapor Recovery Workshop

Dear Sir/Madam:

In March 2000 the Air Resources Board (ARB) approved the Enhanced Vapor Recovery (EVR) regulations which became effective on April 1, 2001. The purpose of the EVR regulations is to improve the reliability and durability of in-use vapor recovery systems for gasoline dispensing facilities with underground storage tanks. Vapor recovery systems for above ground gasoline storage tanks (ASTs) were not included in the development of EVR regulations and therefore the EVR regulations do not apply to AST vapor recovery systems. The ARB intends to apply EVR improvements to AST vapor recovery systems through a new rulemaking process. In the interim, the ARB staff plans to use the written procedure for evaluating and certifying AST Phase I and Phase II vapor recovery systems. These interim requirements are based on currently adopted certification and test procedures for ASTs.

The purpose of this workshop is to accomplish two goals. The first is to announce the start of a new rulemaking process for ASTs and to solicit public input in the development of the new certification and test procedures for AST vapor recovery systems. The second goal is to discuss and receive comments on the enclosed draft written procedures. The draft written procedures can be downloaded from our website at after June 4, 2001. Alternately, a hardcopy may be obtained by calling (916) 327-0900.

The time and place for workshop are as follows:

                               DATE:         Thursday, June 21, 2001

                               TIME:           9:00 a.m. to 4:00 p.m.

                               PLACE:        California EPA Headquarters
                                                     Sierra Hearing Room, 2nd Floor
                                                     1001 I Street
                                                     Sacramento, California 95814

The workshop facility is accessible to persons with disabilities. If accommodations are needed, please contact Ms. Elizabeth Mongar at (916) 327-0900 by June 14, 2001. Persons with hearing or speech impairments can contact us by using our Telephone Device for the Deaf (TDD) at (916) 342-9531, or (800) 700-8326 for TDD calls from outside the Sacramento area. If you have questions or need further information, please contact Pat Bennett at (916) 445-9308 or Joe Guerrero at (916) 324-9487.

We invite your participation at the June 21, 2001, workshop. If you cannot attend the workshop and would like to provide comments, or if you have questions regarding this workshop, please call Mr. Pat Bennett at (916) 445-9308, or or Mr. Joe Guerrero at (916) 324-9487 or



William V. Loscutoff, Chief
Monitoring and Laboratory Division

The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy costs, see our Website:

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