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Appendix A - Anch • • 8' Diameter Tanks)
<br /> Anchor Chart
<br /> Minimum burial depth to achieve 1.2 safety factor against flotation assuming worst case conditions
<br /> of water to grade and the tank empty.Assumes multiple tank installation.
<br /> Tank Diameter& Space #of #of Sumps or Risers
<br /> Nominal Capacity in Between Anchor Backfill to Grade No Traffic/Backfil I with 6"Concrete Traffic Pad)
<br /> Gallons Tanks Straps 0 1 2 3 4
<br /> (Including all Compartments)
<br /> up to 1,000 w/12"x12"DM 24" 2 24" / 24" 33" / 24 - -
<br /> up to 1,000 w/8"Pad 24" 2 24" / 24" 33" / 24"
<br /> up to 1,000 No Mech 18" 0 29" / 26" 58" / 53" - - -
<br /> 1,100-1,500w/12"x12"DM 24' 2 24" / 24" 33" / 24" 87" / 68" - -
<br /> 1,100-1,500w/8"Pad 24" 2 24" / 24" 45" / 38" 81" / 68" - -
<br /> 1,100-1,500 No Mech 78" 0 29" / 26" 51" / 46" 74" / 68" - -
<br /> 1,600-2,000 w/12"x12"DM 24" 4 24 / 24" 35" / 26" 35° "/ 26" - -
<br /> 1,600-2,000 w/8"Pad 24" 4 24" / 24" 35" / 26" 35" / 26"
<br /> 1,600-2,000 No Mech 18" 0 30" / 27" 46" / 41" 57" / 52" - -
<br /> up to 4,000 w/12"x12"DM 24" 2 28" / 24" 43" / 38" 52" / 46" -
<br /> u p to 4,000 w/8"Pad 24" 2 28" / 24" 43" / 38" 52" / 46" - -
<br /> up to 4,000 No Mech 18" 0 44" / 41" 62" / 58" 73" / 69" - -
<br /> 4,100-6,000 w/12"x12"DNI 24" 4 27" / 24" 33" / 29 36" / 31" 65" / 57" -
<br /> 4,100-6,000 w/8"Pad 24" 4 26" / 24" 31" / 28" 34" / 28" 65" / 57"
<br /> 4,100-6,000 No Mech 18" 0 46" / 43" 59" / 55" 62" / 58" 75" / 71" -
<br /> 6,100-10,000 w/12"x12"DVI 24 6 29" / 26" 33" / 30" 36" / 32" 41" / 36" 45" / 39"
<br /> 6,100-10,000 w/8"Pad 24" 6 29" / 26" 33" / 30" 36" / 32' 41" / 36 45" / 39"
<br /> 6,100-10,000 No Mech 18" 0 47" / 44" 56" / 52" 57" / 54" 64" / 60" 68"
<br /> up to 7,000w/12"x1 24" 2 36" / 32" 47" / 43" 53" / 48" - -
<br /> up to 7,000 w/8"Pad 24" 2 36" / 31 47" / 43 53 / 48" - -
<br /> up to 7,000 No Mech 18" 0 58" / 55" 73" / 69" 82" / 78" - -
<br /> 7,100-12,000 w/12"x12"DM 24 4 39" 1 35" 45" / 41" 47" / 43" 65" / 60" 65" / 60"
<br /> 7,100-12,000 w/8"Pad 24" 4 38" / 35" 42" / 39" 42" / 39" 65" / 60" 65" / 60"
<br /> 7,100-12,000 No Mech 18" 0 61" / 58" 72" / 68" 76" / 72"
<br /> 13,000-16,000 w/12"x12"DM 24 6 41" / 38" 46" / 42" 47" / 43" 52" / 47" 68" / 61"
<br /> 13,000-16,000 w/8"Pad 24" 6 38" / 35" 4T' / 39" 42" / 39" 52" / 47" 68" / 61"
<br /> 13,000-16,000 No Mech 18" 0 62" / 59" 71" / 68" 73" / 70" 80" / 76" 84" / 81"
<br /> 17,000-20,000 w/12"x12"DIA 24" 8 42" / 38" 46" 1 42" 47" / 43" 50" / 42 52" / 48"
<br /> 17,000-20,000 w/8"Pad 24" 8 34 / 31" 38" / 35" 41" / 37" 41" / 37" 41" / 37"
<br /> 17,000-20,000 No Mech 18" 0 63" / 60"-. 70" / 66" 71" / 67" 76" / 72" 79" / 75"
<br /> Contact Tank Technical Support for alternate anchoring methods.
<br /> Note: DM=Concrete Deadman Anchors
<br /> Pad=Concrete anchor pad under tank
<br /> No Mech=No mechanical anchoring
<br /> NA=Not allowed
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