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0 <br /> Results of U.S. EPA Standard Evaluation <br /> Volurnetric Tank Tightness Testing <br /> This form tells whether the tank tightness testing method described below complies wit <br /> the performance requirements of the federal underground storage tank regulation. Th <br /> evaluation was conducted by the equipment manufacturer or a consultant to th <br /> manufacturer according to the U.S. EPA's "Standard Test Procedure for Evaluating Lea <br /> Detection Methods: Volumetric Tank Tightness Testing Methodss." The full evaluatio <br /> report also includes a form describing the method and a form summarizing the test datc, <br /> Tank owners using this leak detection system should keep this form on file to Prov <br /> compliance with the federal regulations. Tank owners should check with State and loc. <br /> agencies to make sure this form satisfies their requirements. <br /> Method Description <br /> Name TLS-250/TLS-250i/TLS-350 UST Monitoring Svstems <br /> Version Number 8473 Digital Sensing Probe (Magnetostrictive) <br /> Vendor Veeder Root <br /> 125 Powder Forest Drive P O Box 2003 <br /> (street address) <br /> Simsbury CT 06070-2003 (203)-651-2700 <br /> (city) (state) (zip) (phone) <br /> Evaluation Results <br /> This method, which declares a tank to be leaking when the measured leak rate exceed <br /> the threshold of 0.071 gallon per hour, has a probability of false alarms [P(FA)) of 1.01/c <br /> The corresponding probability of detection [P(D)l of a 0_1 gallon per hour leak is 99.01/c <br /> Therefore, this method 0 does ❑ does not meet the federal performance standard <br /> established by the U.S. Environmental Protection Agency (0.1 gallon per hour at P(D) c <br /> 95% and P(FA) of 5%). <br /> Test Conditions During Evaluation <br /> The evaluation testing was conducted in a_10,000 gallon steel ❑ fiberglass tank the <br /> was 96 inches in diameter and 324 inches long. <br /> The temperature difference between product added to fill the tank and product alread <br /> in the tank ranged from — 11.4 °F to 7.1 °F, with a standard deviation of 71 °F. <br /> The product used in the evaluation was No. 2, Diesel . <br /> Volumetric TTT Method - Results Form Page 1 of 2 <br />