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O Hazardous Waste Tank System Assessment Love's/SpeedCo#944, Ripon,CA a ntea®g ro u p May 2024 HAZARDOUS WASTE TANK SYSTEM ASSESSMENT Regulatory Requirement:California Title 22 CCR, Chapter 15,Article 10 Section§66265.192(Owners or operators of new(hazardous waste)tank systems or components shall ensure that the foundation,structural support,seams, connections, and pressure controls(if applicable)are adequately designed and that the tank system has sufficient structural strength, compatibility with the waste(s) to be transferred, stored or treated, and corrosion protection so that it will not collapse, rupture, or fail. The owner or operator shall obtain a written assessment reviewed and certified by an independent qualified, professional engineer, registered in California in accordance with section 66270.11(d)attesting that the system has sufficient structural integrity, is acceptable for the transferring, storing and treating of hazardous waste, and that the tanks and containment system are suitably designed to achieve the requirements of this article). 1.0 TANK ID: TANK 1 — 7,875-GALLON, SINGLE-COMPARTMENT TANK 1.1 Regulatory Requirement: Tank Configuration(i.e., horizontal, vertical), material of construction, nd gross capacity(in gallons) Horizontal, rectangular,single-walled steel within tank containment room with a capacity of 7,875 gallons.The tank is situated on 2 inch high steel legs,which are not anchored to the concrete ground surface.The foundation is adequate and sound for the tank, however the tank should be anchored to the concrete. 1.2 Regulatory Requirement:Design Standard(s),if available, according to which the tank and ancillary equipment were or will be constructed and all of the following information: UL 142 single-walled tank for combustible liquids. Model#C259084 A. Regulatory Requirement: Material of Construction The tank is constructed of carbon steel. B. Regulatory Requirement:Material thickness and the method used to determine the thickness Ultrasonic thickness (UT) measurements were taken to confirm the current tank integrity.Tank shell thickness ranged from 0.244 to 0.275 inches. UL 142 standard indicates original thickness should be a minimum of 0.240 inches. C. Regulatory Requirement:Description of tank system piping(material, diameter) Aboveground,single-walled piping is connected to the tank.The inflow piping from the oil water separator(OWS) is 1-inch in diameter and connected to the fill port at the top of the tank.The inflow piping from the service pit is a 1-inch diameter hose and steel piping which extends from the underground service pit to the tank room.A 2-inch diameter valved outflow pipe is located at the top of the tank and extends upward to the ceiling of the room wall,then down into a transfer alcove where it is capped. NOGENO ALLIANCE us.anteagroup.com 1