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CONDOR EARTH 188 Frank West Circle, Suite t j Stockton,CA 95206 209.234.0518 ® Fax 209.234.0538 CONDORwww.condorearth.com Condor Project 7167C2 October 1,2018 Will Harp,Terminal Manager Northern Region Valley Pacific Petroleum Services, Inc. 166 Frank West Circle Stockton, CA 95206 Subject: Formal External Inspection of an 8,550-Gallon Aboveground Storage Tank(AST-3), Valley Pacific Petroleum Services—Stockton Facility, Stockton, San Joaquin County, California Dear Mr. Harp: Condor Earth (Condor) inspected the 8,550-gallon Aboveground Storage Tank (AST) at the Stockton Facility (Facility) located at 166 Frank West Circle, Stockton, California. The AST (AST-3) was inspected on February 15, 2017, by James Montgomery, AST Inspector No. AST-133458, and Jordan Johnson,AST Inspector No. AST-T10388. Condor performed the inspection in general conformance with Steel Tank Institute (STI) Standard SP001 5th Edition - September 2011 Formal External Inspection (FEI). The subject AST-3 is an elevated, multi-compartment, single-wall steel tank located within a secondary containment structure. The tank's configuration is consistent with a Category 1 AST and has the following inspection schedule: Tank Category Monthly Annual Formal Formal I,II,or III Inspections* Inspections* External Internal Leak Test Inspection** Inspection** (Years) (volume-gallons) (Y/N) (Y/N) (Years) (Years) I 8,550 al Y Y 20 - - *Completed by owner's inspector. **Completed by Certified Inspector. Visual Observations • The subject tank,AST-3,has an Underwriters Laboratory(UL)AST identification label. • The tank was fabricated November 1989 and was manufactured by N.J. McCutchen, Inc. • The exterior wall of the tank and ancillary piping was inspected and appeared to be in good condition. • Minor leaks were observed in piping connections to both tank mounted pumps. • Visual observations of the tank's exterior shell showed no signs of pitting along the longitudinal section between the four and eight o'clock positions at the bottom of the tank. • The tank's long-bolt manway is an approved emergency relief vent(ERV); however, the stamped plate did not identify the overpressure venting capacity.