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• <br />• <br />ABOVEGROUND STORAGE TANK PERIODIC INSPECTION <br />CHECKLIST <br />Frequency Date By Section Item to check Comments <br />Yearly 4.2 Water in tank(s) <br /> 4.3 Tank interstice, <br />Leak detection <br /> 4.4 Pipe connections <br /> 4.5 Exterior <br /> 4.6 Vents, <br />Emergency Vents, <br />Spill Containers <br /> 4.7 Site drainage <br /> 4.8 Emergency Vents <br />o-rings or gaskets <br /> 4.9 Tank Supports <br /> 4.10 Tank Foundation <br />As Required 4.11 Cathodic <br />Protection System <br />NOTES: 1. Every 10 years, Certified Inspection by Qualified Tank Inspector is required. <br />2. The inspection intervals listed above may require adjustment as a result of the Certified <br />Inspection. <br />AST Inspection Standard 14 <br />September 2000