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Measure&record"A"and"Z,"and then peform the following calculation: <br /> 3 '- Drop tube seal surface to the bottom of the tank <br /> (subtract) <br /> Upper drop tube flange to the edge of the upper tube adapter <br /> -(subtract) <br /> Reference offset <br /> _(equals) <br /> ' Final shutoff volume height <br /> Locate the final shutoff volume <br /> Use the tank chart provided by the tank height on the tank chart. provided by the <br /> manufacturer to record and calculate the following: manufacturer,andnrecord the <br /> C gal Final shutoff volume closest corresponding volume. <br /> (divide by) <br /> -. J 1_- gal Actual tank capacity <br /> X(muliply by) <br /> (equals) — <br /> p <br /> V If the final shutoff volume <br /> Final shutoff volume percentage percentage is 95%or less,the <br /> installation conforms to FFS and <br /> industry recommended practices. <br /> 2 d L gal Actual tank capacity <br /> -(subtract) The final Shutoff Volume Percentage may <br /> ` bereater than 9S%as long as the ullage <br /> f [([ gal Final shutoff volume volume remaining is greateithan or <br /> _(equals) equal to 250 gallons so that"...none of <br /> the fittings located on the top of the tank <br /> Ullage volume remaining are exposed to product due to <br /> overfilling,"according to EPA 40 CFR Part <br /> 280. The installation must also meet all <br /> applicable regulatory requirements,and <br /> must be acceptable to the Authority <br /> Having Jurisdiction(AHJ). <br />