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ro EO%1B" STI SP-001 POWERS e°"" "° '° Fe707.]IN MID VALLEY AGRICULTURE SERVICES MID VALLEY AS FP%]o—L- ENGINEERWG&INSPECTION,INC. wxw-0^wenKeam Diesel Fuel Tank 4.Access .VT and a.Access to the top of the tank is via ladder rungs installed on the tank's structure measurement of end cap. The ladder rungs and attachment welds appear to be in good access structure condition with no signs ofcorrosion. components 5.Coatings .VT of Coatings a.The tank was visually inspected for any coating failure. The tank shell, ends,and appurtenance coatings are in good condition with only isolated minor coating failures identified. Rust and coating failure was identified on all threaded and flanged connections, consider applying touch up coatings to these areas.Monitor the condition of the coatings and apply touch up coatings as needed to prevent corrosion damage to the shell, ends, piping,and appurtenances. 6.Venting .VT of existing a.The tank is equipped with a 2-in normal vent with a total of 3.14 square venting system inch of surface area opening,which is less than the 6.28 square inch of .Calculate the largest in use nozzle(4-in).The normal venting is undersized sized Venting according to NFPA 30 and UL 142. Since the tank operates at reduced Requirements flow rates and the total venting capacity is above the required 376,800 SCFH,no action is required. b.According to the Morrison Venting guide and NFPA 30, the tank minimally requires a &in emergency vent with 376,800 SCFH venting capacity. The 8-in emergency vent located on the manway cover provides 503,517 SCFH and meets the required emergency venting. c.Consider servicing the existing normal and emergency vents to assure ro era eration and prevent damage from over or under pressure. 7.Grounding .VT grounding a. The tank currently does not have any grounding or bonding Cables system installed. Consider installing grounding Cables per NFPA 30 Section 6.5.4. 8.Signage and .VT to document a.The tank is equipped with appropriate signs and placards conforming to Placards Fire Department NFPA 704 standards. Signage 9.Gauging .VT oftank a.Gauging iscurrently being performed through a manual gauging process. Gauging system Consider installing an automatic level gauge and high level sensor at the top of the tank. 10. Piping .VT of piping a.Visual inspection of the piping components was performed.This tank is system equipped with threaded components and piping, which are known to develop seeps. Monitor these areas during monthly and annual inspections. STAWIMDVPLLEYAWtIC MSEMJ STM UESELMELMDV YA MW Page D P^MGSIYIS OAI.PHI.