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I <br /> �a ITTS IntGVAty Tank Testing Systems,Inc. <br /> t <br /> w <br /> I Page 2 <br /> I � <br /> TEST DATA & RESULTS <br /> i ' Site: REEVE'S EXXON STATION, Tracy, CA <br /> +.a The negative results shown on page one may be due to a partially <br /> collapsed vapor pocket; however, your system appears, based upon <br /> our visual inspection during testing, to be properly vented_ If <br /> this is the case, the data generated indicates that you do not <br /> have a tight tank system. <br /> i.. If you have been keeping good inventory records, and they do not <br /> show losses, chances are that the product is being lost through <br /> Plumbing that is above the top of the tank. About 98% of the time <br /> we show unexplainable losses during testing, the plumbing is found <br /> to be the culprit. <br /> As we can not see through the systems covering, we can only <br /> speculate which line is leaking. The most common leaks occur in <br /> the vent and the phase two vapor return lines. The only positive <br /> way in which to determine which line is leaking is to remove the <br /> covering down to the top of the tank and test each line <br /> separately. <br /> You do have an immediai,e responsibility to adviseour <br /> y governing <br /> agency that you did not "pass" the annual precision tank test. At <br /> the same time, you will need to advise them of the action you are <br /> taking to reraedy the situation. <br /> The action you may wish to take may involve one or all of the <br /> following; Obtain a second opinion full, system precision test; <br /> conduct an underfilled <br /> precision test to determine the condition <br /> of the tank only; uncover the various 1:.nes at the top of the tank <br /> and testi each line seperately. <br /> Please advise if you need additional assistance or information, ` <br /> r„ <br /> 6W 26F 378 166 rzaaY west circle Stockton, CA 95206 (2097 44&SW6 <br />