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RAY AR£4 - :. . . F3 20 LA 3.5 Shell N1 Tank 1' s shell was in good condition. Weld seams were in good condition. The ekteriorgcoatings are failing in many areas and it is "Recommended"', the rusted areas be addressed and a new coating, " paint" , placed over these areas . 3.6 Venting: All tanks are required to have normal vents . Normal vents are required to be sized equal to or greater than final discharge piping . The vent and fill line are both 34nches . The discharge line is 24nches . The vent was clear of debris at the time of the visit. Emergency vents are required for both the primary and secondary tank for a double walled system . The manway lid has spring bolts which are used as an emergency vent for the primary tank. At the time of the visit the spring bolts were operational, but the lid was stuck to the tank. It is �,'Requured.' that the manway lid be "pried" up by the maintenance crew to ensure that the lid will lift if needed during an emergency . The secondary tank has a pop top emergency vent that was in good operating condition. 3 .7 Liquid Level Indicators/ Overfill Alarms . Liquid level monitors (LLM) are required for all tanks . Tanks 1 has a mechanical Morrison Brothers clock gauge in operational condition. The tank does not have an overfill alarms . Overfilling may be addressed in the SPCC plan. It is "Recommended that the SPCC plan address overfilling by active management of the filling process or limiting the fill to 85 percent of the tank' s capacity . 3.8 Piping: Piping is designed for some flex . Piping is in adequate condition. 3.9 Bonding and Grounding: Flammable liquid tank should have proper grounding and should be equipped for bonding during filling. Electrical pumps and equipment attached to the tank increase the potential for short circuiting. Tank does not have grounding. It is "Recommended that tank storing combustible liquids be grounded . 3.10 Inspection Schedule Analis_ The next round of formal 3rd party external inspections and interstice observations are in 5 years (2024) . It is "Recommended that interstice monitoring by placing a wooden dowel into the interstice port to observe for fluids and odor be conducted monthly by Conti . 3 BAY AREA TANK R COATINGS , LLC 2115 E . 27TH ST VANCOUVER , AI'A 98661 OFFICE 360 . 314. 2448 FAX 360 . 314 . 2601 i 1