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• — —i <br /> Yracar�taaearch Corporation <br /> i <br /> I <br /> I <br /> • I <br /> Nonvolumetric TTT Method Tracer Tight (TM) <br /> Version <br /> > Safety Disclaimer. This test procedure only addresses the issue of the method's ability <br /> to detect leaks. It does not test the equipment for safety hazards. <br /> Additional Evaluation Results (if applicable) <br /> This method, which declares a tank to be leaking when has an estimated probabilityof <br /> false alarms [P(FA�of % based on the test results of false alarms out <br /> of tests.Based on theobservedresults, a 95during <br /> confidence intervaltesting does not for P(FA)ean that sefronh0 to perfect. <br /> The corresponding probability of detection [P(D)l of a gallon per hour leak is <br /> % based on the test results of detections out oT simulated leak <br /> tests. Note: A perfect score during testing does not mean that the method is perfect. Based <br /> Oil the observed results, a 95% confidence interval for P(D) is from 0 to %• <br /> > Water detection mode (if applicable) <br /> Using a false alarm rate of 5%, the minimum water level that the water sensor can detect <br /> with a 95% probability of detection is N/A inches. <br /> Using a false alarm rate of 5%' the minimum char a in water level that the water sensor can <br /> detect with a 95% probability of detection is N A inches. <br /> Based on the minimum water level and change in water level that the water sensor can <br /> detect with a false alarm rate of 5% and a 95% probability of detection, the minimum time <br /> for the system to detect an increase in water level at an incursion rate of 0.10 gallon per <br /> hour is N A minutes in a -NJ-A— - gallon tank. <br /> Certification of Results <br /> I certify that the nonvolumetric tank tightness testing method was installed and operated <br /> according to the vendor's instruction -1 also certify that the evaluation was performed <br /> methoaccording <br /> and that thenresults presented above arare tthose nr <br /> to the c tank obtainedduri g thetness lb <br /> evaluation. <br /> H Kendall Wilcox Ken Vlilcox As. oci rtes — <br /> (primed nn}ame_)��eD (organvation perfottwng c�aluauun) <br /> r420" ,4 <br /> 'C <br /> Blue springs Missouri 64015 <br /> (signature) (rity,etatc,zip) <br /> October 4 1990 (816) E 0860 <br /> (date) (phone number) <br /> I ase3 o(3 <br /> No..oi.setrie T1T Mdiad-Yairltx Vwr <br />