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The width of the soil wedge at grade will be the lesser of the following: <br /> - for non-adjacent tanks: ww 32 in OR width based on tank depth and soil angle <br /> - for adjacent tanks: ww 32 in OR 1/2 space between tanks OR the width based on the tank depth and <br />soil angle <br />Wtk_wedge_at_grade min ww <br />ODtk <br />2 Covertktan Aside_tk Installation "No Adjacent Tanks"=if <br />min 0.5 Spacingtk ww <br />ODtk <br />2 Covertktan Aside_tk otherwise <br /> <br />Wtk_wedge_at_grade 18.0 in effective width of the tank soil wedge at grade <br />Note that any adjacent tank that is spaced more than twice the value of the width of the soil <br />wedge at grade 2Wtk_wedge_at_grade 36 in plus the width of any deadmen between the tanks <br />will have no influence on this buoyancy calculation. <br />Effective soil wedge angle using <br />the wedge width at gradeAngletk_wedge atan <br />Wtk_wedge_at_grade <br />ODtk <br />2 Covertk <br />7.1 deg  <br />The tank wedge weight will include three volumes - <br />- vol below the tank top using a submerged unit weight of sub_fill <br />- vol above the tank top that is submerged using a unit weight of sub_alt_fill <br />- vol above the tank top that may not be sumerged based on the water level with a unit weight of alt_fill <br />width of the soil wedge at <br />the tank topWtk_wedge_at_top_tk <br />ODtk <br />2 tan Angle tk_wedge 7.5 in  <br />width of the <br />soil wedge <br />at the <br />water level <br />Wtk_wedge_at_water_level Covertk <br />ODtk <br />2Waterdepthtan Angle tk_wedge 18.0 in  <br />Volume of the <br />Tank Side Fill <br />Wedges <br />wedges <br />include both <br />sides <br />Vol tk_wedge <br />ODtk <br />2 CovertkWtk_wedge_at_grade Ltk_cyl 248 ft <br />3  <br />Vol tk_wedge_to_top_tk <br />ODtk <br />2 Wtk_wedge_at_top_tk Ltk_cyl 44 ft <br />3  <br />Vol tk_wedge_to_water_level <br />ODtk <br />2 CovertkWaterdepthWtk_wedge_at_water_level Ltk_cyl 248 ft <br />3  <br />Weight of Tank <br />Side Fill Wedges <br />Tank Buoyancy, Rotten Robbie No 69, <br />Manteca CA, dwg 17366-001, 10ft DWT <br />Date Printed: 9/7/2023 Page 17 of 46