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9. AST will withstand Trost-heave XX Yes No AST is located in secured covered Service Area not subject to weather conditions 10. AST previously relocated? Yes XX No 11. AST Corrosion Protection Tank is covered in paint, with no evidence of external corrosion. Tank has no Specific corrosion protection beyond the paint. No part of the AST touches the ground. The base of the AST is steel,raised 4 inches within the berm. The berm is raised 1 1/z in, above concrete pad. There is no evidence of internal corrosion taking place. Tank's construction material is carbon steel. Since this tank is not in contact with the ground, there is no need for further corrosion protection such as cathodic corrosion rotection. 12. AST Spill Prevention Equipment Tank has secondary containment with single wall steel horizontal cylinder priniary tank set in a steel berm.Tank has unknown brand mechanical float level gauge to determine product levels in primary vessel. Fillina operations conducted by connecting directly to oil caddies in service area,via quick connect device, pumping product into AST. Filling is remote operation. Product is not normally T handled outside of its intended containers. There is slight waste oil residue on the berm floor from s ilia e which should be removed and the berm should be kept clear from debris and standina oil. 13. Overfill Protection: System has mechanical float unknown brand gauge for product levels determination. Pump has manual ball valve shut off for emergency shut off of pumping operations. Fil in�,i„,. lE 's remote from pneumatic pump-product not normally handled outside of intended containers. The manual ball valve was inspected, and found to be in the open position. Daily inspections should be conducted to ascertain product to this levels in the primary tank. A Daily Loa example for visual inspections is attached , assessment ,. is assessment report. The tank has a containment filling,basin on the top of the tank to capture oil from filters and allow the oil filters to drain into the tank thru the 2 in. pipe connected bottom of the containment basin. 14a: Toxic Considerations: Used mineral-based crank brown-to-black, ly case oil is the ,oily liquid removed from the engine of a motor vehicle when the oil is changed.It is similar to unused oil except it contains additional chemicals from its use as an engine lubricant.The chemicals in oil include hydrocarbons, which are distilled from crude oil, and various additives that improve the oil's performance.Used oil also contains chemicals formed when the oil is exposed to high temperatures and pressures inside an engine.It also contains some metals from engine parts and small amounts ofgasoline, antifreeze and chemicals that come from gasoline when it burns inside the engine. 14b: Additional Hazardous Considerations: Waste Oil can be Ignitable & create fires under certain conditions are combustible or have a flash point less than 60 °C 140 ° in addition to a slightly corrosive hazard. which can corrode & break down metals over long periods of exposure. It is not normally a reactive nor does it enerate large amounts of vapors,which would be an additional fire hazard however,this tank is not fitted with one 2 in. atmos heric vent on the primary tank and no atmospheric vent on the secondary containment area. The tank has no emergency vent on the priniar-Y tank, and also no emergency vent on the secondary containment. Emergency vents,if installed, are properly sized as annotated on a Nameplate on the exterior of the tank,and/or also for the listing thru Underwriter's Laboratories.. 15. AST secondary containment (material/design/listed) AST has secondary containment via steel berm to completely capture any leaks from primary vessel. Secondary containment was tested,is intact and AST is suitable for continued usa e. AST sits within a secured Service Area room enclosure . Leak detectionctiotion is visually ascertained via visual inspection of secondary containment area. Berm has 710 gal. capacity for containment. 16. Damage to AST or systems. No damage reported by Owner/Operator. Upon inspection,no evidence of weld breaks unctures cracks or other structural damage to the tank. Leak detection is assured via inspections of the secondary containment. Steel thickness measured to.140 in. average measured at 20 points on AST outer shell with ultrasonic steel thickness sensor& .130 in. averagov on outer berm steel walls avers e�T measured at 20 points on berm walls with ultrasonic steel thickness sensor.