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Measure&record"A"and'Z,"and then peform the following calculation: <br /> "A" 171.5 Drop tube seal surface to the bottom of the tank <br /> - (subtract) <br /> 171 65 Upper drop tube flange to the edge of the upper tube adapter <br /> - (subtract) <br /> 4.5" Reference offset <br /> _ (equals) <br /> 102 Final shutoff volume height <br /> Locate the final shutoff volume <br /> height on the tank chart <br /> Use the tank chart provided by the tank provided by the tank <br /> manufacturer to record and calculate the following: manufacturer,and record the <br /> closest corresponding volume. <br /> 14180 gdl Final shutoff volume <br /> (divide by) <br /> 15023 ga I Actual tank capacity <br /> X (muliply by) <br /> 100 <br /> = (equals) If the final shutoff volume <br /> 0 0 percentage is 95%or less,the <br /> 94.3 % Final shutoff volume percentage installation conforms to FFS and <br /> industry recommended practices. <br /> 15023 gal Actual tank capacity <br /> The final Shutoff Volume Percentage may <br /> - (subtract) be greater than 95%as long as the ullage <br /> 14180 gal Final shutoff volume volume remaining is greater than or <br /> equal to 250 gallons,so that"...none of <br /> _ (equals) the fittings located on the top of the tank <br /> 843 gall 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 /> 17 <br />