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Results of U.S. EPA Standard Evaluation <br /> Automatic Tank Gauging System (ATGS) <br /> This form tells whether the automatic tank gauging system (ATGS) described below complies with <br /> the performance requirements of the federal underground storage tank regulation.The evaluation <br /> was conducted by the equipment manufacturer or a consultant to the manufacturer according to <br /> the U.S. EPA's "Standard Test Procedure for Evaluating Leak Detection Methods: Automatic <br /> Tank Gauging Systems."The full evaluation report also includes a form describing the method and <br /> a form summarizing the test data. <br /> Tank owners using this leak detection system should keep this form on file to prove compliance <br /> with the federal regulations.Tank owners should check with State and local agencies to make sure <br /> this form satisfies their requirements. <br /> ATGS Description <br /> Name EASIeleri 1-Tru <br /> Version number <br /> Vendor _ Environment nd Safety Inc <br /> 721 CharcotAvenueAvenue <br /> street address) <br /> qoa <br /> San Jose, CA 95131 (AN 954-9081 <br /> city state zip one <br /> • Evaluation Results <br /> This ATGS, which declares a tank to be leaking when the measured leak rate exceeds the <br /> threshold of 0. 1 gallon per hour, has a probability of false alarms [P(FA)] of 4. d %. <br /> The corresponding probability of detection [P(D)] of a 0.20 gallon per hour leak is 95. 4 %. <br /> The minimum water level (threshold) in the tank that the ATGS can detect is 0.896 inches. <br /> The minimum change in water level that can be detected by the ATGS is 0.023 inches <br /> (provided that the water level is above the threshold). <br /> Therefore, this ATGS 0 does ❑ does not meet the federal performance standards <br /> established by the U.S. Environmental Protection Agency (0.20 gallon per hour at P(D) of 95% <br /> and P(FA) of 5%), and this ATGS 0 does ❑does not meet the federal performance <br /> standard of measuring water in the bottom of the tank to the nearest 1/8 inch. <br /> Test Conditions During Evaluation <br /> The evaluation testing was conducted in a 10.000 gallon 0 steel ❑fiberglass tank that <br /> was 96 inches in diameter and 324 inches long. <br /> The temperature difference between product added to fill the tank and product already in the <br /> tank ranged from -5.7 OF to 6. 1 OF, with a standard deviation of 4. 5 OF. <br /> The tests were conducted with the tank product levels 50 and 90-95 % full. <br /> The product used in the evaluation was diesel fuel <br /> ATGS - Results Form Page 1 of 2 <br />