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TABLE OF CONTENTS Preliminary Instructions ....................................................3 Wet Hole......................................................... 14 Safety Considerations.......................................................3 Bedding..................................................... 14 Reminders .....................................................................3 Ballast....................................................... 14 Activation of Tank Warranty................................................3 Backfill....................................................... 14 Important Telephone Numbers.........................................3 A9. Piping and Sump Clearances ....................... 15 Tank with Bottom Sumps ............................... 15 A All Single-wall and Double-Wall Tanks ...............4-15 Extemal Piping ............................................... 15 Al. Handling/Preparation........................................4 Internal Piping ................................................ 15 Lifting Tanks ......................................................4 A10. Filling.............................................................. 15 A2. Bed and Backfill ................................................4 A11. Venting............................................................ 15 A3. Pre-installation Testing .....................................5 Al2. Manway and Manway Extensions .................. 15 Pressure............................................................5 A13. Special Instructions for Compartment Tanks.. 16 Visual Air-Soap Test..........................................5 A14. Site Monitoring Wells ..................................... 16 Single-Wall Tanks.............................................5 B. Double-Wall Tank Monitoring Systems.................. 17 Double-Wall Tanks with Dry Annular Space......5 B1. Types of Tank Monitoring Systems ................ 17 Outer Wall Test.............................................6 82. Installation of Liquid or Vapor Sensor............ 17 Inner Wall Test .............................................6 B3. Installation of Vacuum or Air Pressure Monitoring Double-Wall Tanks Hydrostatically Monitored System............................................................ 17 Reservoir Level Check.................................6 B4. Installation of Hydrostatic Tank Monitor......... 17 Outer Wall Test.............................................6 C. Hydrostatic Monitoring ........................................... 18 Inner Wall Test .............................................6 Cl. Preparation..................................................... 18 A4. Hole Size ...........................................................7 C2. Jobsite Safety Precautions ............................ 18 Stable Excavations ............................................7 C3. Reservoir Fluid Height Adjustment................ 18 Unstable Excavation..........................................8 C4. Reservoir Alarm Actions................................. 18 A5. Burial Depth and Cover.....................................8 D. Collars and Turbine Enclosures........................19-23 ExcavationDepth...............................................8 D1. General........................................................... 19 Traffic Pad Reinforcement ................................8 Containment Collar........................................ 19 Pad Dimensions...............................................8 Turbine Enclosure.......................................... 19 Maximum Burial Depth......................................8 Handling......................................................... 19 A6. Filter Fabric Installation.....................................9 Inspection....................................................... 19 Dry Hole.............................................................9 D2. Turbine Enclosure Height.............................. 19 Wet Hole............................................................9 D3. Top Clearances.............................................. 20 AT Anchoring ....................................................9-12 D4. Mounting Turbine Enclosure to Collar........... 20 Mechanical Anchoring .................................... 10 D5. FRP Sealed Turbine Enclosure..................... 22 Concrete Anchor Pad ......................................11 D6. FRP Watertight Turbine Enclosure ................ 22 Deadman Anchors ..........................................11 D7. FRP Nonsealed Turbine Enclosure .............. 23 Single-Tank Installation .............................11 D8. Hydrostatic Water Test ................................... 23 Multiple-Tank Installation.......................... 12 Joints.............................................................. 23 Anchoring Hardware ...................................... 12 Seals .............................................................. 23 Optional Man-out-of-hole Method .................. 12 D9. Monitoring....................................................... 23 A8. Tank Installation ....................................................... 13 D10. Periodic Testing ............................................. 23 Dry Hole(with OSHA sloped excavation walls)13 E. Field-installed Fittings for Piping and Electrical Bedding..................................................... 13 Conduit .............................................................24.26 Backfill....................................................... 13 E1. FRP Coupling Installation.............................. 24 Dry Hole (straight or shored walls 13 E2. Secondary Piping Connection ....................... 25 Backfill....................................................... 13 E3. Electrical Coupling Installation ...................... 26 Probe......................................................... 13 F. Manway Risers........................................................ 27 2