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Appendix D Table : Vernalis Asphalt Facility Oil Storage Inventory, Potential Spill Scenarios; Containment Measures; Tank Integrity Program <br /> Potential Spill Potential Spill Potential Spill <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> (worst w containment area are formally Periodic visual <br /> • Double- Rupture ( Flow following vault. inspected weekly; spill inspections ( Section 6 . 1, <br /> Walled case scenario )) ground slope in kits are readily Appendix H ), Formal <br /> (Vault ) adjacent area . accessible . External Inspection at <br /> • Steel 20 year intervals . <br /> Ref: 40 CFR 112 . 8 ( c) ( 6 ) <br /> Tank configuration : <br /> SecondaryCylindrical , horizontal, <br /> • AST Pump rate is 5 + Tank is filled by trained <br /> containment elevated , weather <br /> • 500 Gallons Overflow ; GPM ; full failure tray and active personnel ; tank covered , single-walled, <br /> assumes 20 Rupture worst GPM . using accessories and welded steel shell . <br /> AST-10 Used Oil containment area are <br /> • Single- p ( Flow following g formally inspection Test method : Periodic <br /> Walled case scenario ) ground slope in equipment weekly; spill kits are visual inspections <br /> • Steel adjacent area . and readily available (Section 6 . 1, Appendix <br /> absorbents . H ) . <br /> Ref: 40 CFR 112 . 8 ( c) ( 6 ) <br />