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"3,M 11" E Ivy 'nnx�cstst i Ms�r^.yms ' JAN 18 2018 Required F, F � Provide Buoyancy Calculations for a single fiberglass tank installed by itself or adjacent to anon-er`tani<'. Determine the float factory of safety for a grade slab thickness of t'slab =9.00 in, a total cover depth to grade of Hcov_des =66-in, a water table htv,,at =0.00in below grade; a dry soil unit weighi of ryBF= 104pcf , and a saturated submerged soil weight of 7sub BF =58.4pct • Industry practice and PEI RP100-11 Appendix A section A9 recommend a minimum factory of safety against float of FStloat= 1.20. For these calculations FS.t70a1 = 1.20 is used. Calculations assume that the tank is ballasted with Ballast =0—al of SGBallast= 1.00 specific gravity fluid. if the tank is buried deeper that Hcov des =66-in the FS against float will be increased. The tank design is the ' responsibility of Containment Solutions and is not considered in these buoyancy calculations. Results will include the buoyancy factors of safety for the installation conditions listed above for these installations: ' - the tank without anchoring (no deadman anchors and no anchor slab) DeadmenDesign = "A deadmen solution is provided" - Anchot-SlabDesign = "No anchor slab solution is provided" ' The tank drawing above shows a tank with deadmen as an example while this sheet considers other configurations. These calculations are recommendations by CSI. It is ultimately the responsibility of the tank owner or tank owner's representative to determine the appropriate anchoring method and to design the anchoring system. Q J _• (R2,;` /!6i W'AT:PTIGHT tkN,r cUy- t2"j,*, CCddTAINItEk7 L4LllL4 it X 'rl~ t i 1 r�i�$y{5All , $—Q; a t tN+f — i City Gas and Food- Lathrop CA-dwg 21366-000_DW B_8ft 6M-6M ver 2 60_10-17-16.xmcd Page 2 of 15 Date Printed: 2/7/2017