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AIM <br /> liesuits of U.8, cf'A Standard Evaluation <br /> Automatic Tank Gauging System (ATGS) <br /> finis form tells whether the automatic tank gauging system (ATGS) described below <br /> cornplies wrtn the performance requirements of the tederal underground storage tank <br /> reguialuon. -[he evaivatron was conducted by the equipment manufacturer or a consultant <br /> to the rnanutacturer according to the U.S. EPA's "Standard Test Procedure for Evaluating <br /> Leal: Detection Nlethoas: Automatic Tank Gauging Systems," The full evaluation report <br /> also includes a torr-r descriuing the method and a form summarizing the test data. <br /> 'rank: owners using Tnss leak detection system should keep this form on file to prove <br /> compiiance with the federai regulations. Tank owners should cneck with State and local <br /> agencies to make sure this form satisfies their requirements. <br /> Version, t-urnber Series_PAO2`66/PA0300;PAVZ Probes_ <br /> ver, tiub �.rJ <br /> 5�1+� 1V. F.ricrdi Ave, P.O. Box. 22087 -- <br /> fks"reef address) <br /> IV27 <br /> t. 'Yc�0 (✓j���Y/—��1•J11 <br /> ir;i;,,': �," r e izip, (phone) <br /> Lc <br /> T nrs .A CGS, which aeclares a tank,o oe leaking when the, measured leak rate exceeds the <br /> thresnoid of _Ct___12b gallon per hour, has a probability of false alarms [P(FA)1 of 0.4 %. <br /> Tne corresponding prooabrlity of detection [P(Dd of a 0.2 gallon per hour leak is 98.4_%. <br /> The minimum water level (threshold) in the tank that the Ai"GS can detect is 0.54 <br /> inc'�as. <br /> 1-he minimum change in water level tnat can oe detected by the Ai-GS is 0,027 inch <br /> (provi(jed that cne water level is aoove ;he threshold). <br /> Tnereiore, this ATGS 0 noes ❑ does not meet the tederal performance standards <br /> estabiished by the U.S, Environmental Erotectic_n Agency (0.2 gallon per nour at P(D) of <br /> 95% and PtFA) of 5%), and this ATGS does LU] does not meet the federal performance <br /> stancard of measuring water in the bottom of the tank to the nearest 1/8 inch, <br /> 'bast Conditions During Evaluation <br /> The et,aluation testing was conducted in a _1 Q,U>uG_gallon 0 steel 13 fiberglass tank that <br /> way, .Jb incines in dianicrer and 1`4 r cher long, <br /> The temperarure difference between product added the tank and product already <br /> in trre tank ranged from 8_.4 'F to -6._-1_`F, with a s.: re.ard deviation of 5.6 `F. <br /> 1 he tests were conducted with the tank proouc:i levels 50. ano 95 % full. <br /> The p,'j luct used in the evaivatron was No.2, Diesel_. <br /> Pape 1 of 2 <br />