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Table of Contents <br /> Section 1 <br /> 1.1 Introduction .......................................................................................................................... 1 <br /> 1.2 Scope .................................................................................................................................... 1 <br /> 1.3 Reference Publications ...................................................................................................... 2 <br /> 1.4 Permits and Local Approval ............................................................................................. 3 <br /> 1.5 Personnel Training Requirements ..................................................................................... 3 <br /> Section 2 - Internal Lining and Repair of Steel Underground Storage Tanks <br /> 2.1 General Safety Requirements .......................................................................................... 4 <br /> 2.2 Preparation of Tank Interior............................................................................................... 7 <br /> 2.3 Tank Inspection and Structural Assessment ................................................................... 8 <br /> 2.4 Tank Repairs ......................................................................................................................... 9 <br /> 2.5 EnvirolineTM 125U and 1251.1-9300 Product Information ............................................... 10 <br /> 2.6 Application of EnvirolineTM 1250 Epoxy Linings ............................................................. 12 <br /> 2.7 Curing EnvirolineTM 125U Linings ...................................................................................... 12 <br /> 2.8 Installation of Steel Reinforcing Plate .............................................................................. 12 <br /> 2.9 Testing the Lining ................................................................................................................. 13 <br /> 2.10 Inspection and Compliance ............................................................................................ 13 <br /> 2.11 Closing and Sealing the Tank Man-Way ........................................................................ 13 <br /> Section 3 - Internal Lining and Repair of Fiberglass Underground Storage Tanks <br /> 3.1 General Safety Requirements .......................................................................................... 16 <br /> 3.2 Cutting and Entry into a Fiberglass Storage Tank ......................................................... 16 <br /> 3.3 Internal Inspection and Evaluation ................................................................................. 16 <br /> 3.4 Surface Preparation ........................................................................................................... 16 <br /> 3.5 Repair of Fiberglass Tanks .................................................................................................. 17 <br /> 3.6 Internal Lining of Fiberglass Tanks .................................................................................... 17 <br /> 3.7 Closing the Entry on Fiberglass Tanks .............................................................................. 17 <br /> 3.8 Final Test ................................................................................................................................ 18 <br /> Appendix 1- Confined Space Classification Table 19 <br /> Appendix 2 - Ultrasonic Thickness Gauging Procedure 24 <br /> ii <br />