May 1, 2001

Mr. Donald L. Leininger, P.E.
Technical Liaison Manager
OPW Fueling Components
9393 Princeton-Glendale Road
P.O. Box 405003
Cincinnati, Ohio 45240-5003
                                                                                                                          #AGT 01-01
Dear Mr. Leininger:

This is in response to your request for California Air Resources Board (CARB) approval for OPW's 61fSTOP Overfill Prevention Valve, Models 1000, 2000, 100M, 200M and 3050. The Model 1000 overfill prevention valve was evaluated at the Carmichael Water Works located at 7837 Fair Oaks Boulevard in Carmichael. According to the drawings submitted, the Model 2000, 100M, 200M, and 3050 are similar in design to the Model 1000 and should perform similarly when used in CARB certified above ground tank vapor recovery systems.

As required by the Certification Procedures for Gasoline Vapor Recovery Systems at Gasoline Dispensing Facilities, approvals by the Department of Food and Agriculture, Division of Measurement Standards (DMS), the Department of Occupational Safety and Health, and the Department of Forestry and Fire Protection, Office of the State Fire Marshal are a precondition to certification by CARB. The appropriate letters of approval have been received from the following agencies:

Department of Forestry and Fire Protection
Office of the State Fire Marshal
February 21, 2001

Department of Industrial Relations
Division of Occupational Safety and Health
January 31, 2001

Department of Food and Agriculture
Division of Measurement Standards
November 7, 2000

I find that use of OPW's 61fSTOP Overfill Prevention Valve, models 1000, 2000, 100M, 200M, and 3050, when installed in accordance with the manufacturer's instructions will not adversely affect the performance of vapor recovery systems on which it is installed. Therefore, the OPW 61fSTOP Overfill Prevention Valve, models noted above, are certified for use with CARB certified above ground tank vapor recovery systems.

Should you have questions and need further information, please contact Joe Guerrero at (916) 324-9487 or Pat Bennett at (916) 445-9308.

Sincerely,

INTERNET VERSION

William V. Loscutoff, Chief
Monitoring and Laboratory Division

cc: Rosa Salcedo, San Diego County APCD

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: http://www.arb.ca.gov.

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