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�raAT Integrity Tank Testing SYsteL.s, Inc. <br /> Page 2 <br /> TEST DATA & RESULTS <br /> The negative results shown on page one may be due to a <br /> partially collapsed vapor pocket; however, your system appears <br /> based upon our visual inspection during testing to be properly <br /> vented. If this is the case you are experiencing a product loss <br /> beyond the parameters allowed by current regulations . <br /> If you have been keeping good inventory records, and they do <br /> not show losses, chances are that the product is being lost <br /> through plumbing that is above the top of the tank. About 98% of <br /> the time we show unexplainable losses during testing, the plumbing <br /> is found 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 /> seperately. <br /> If you need the name of a reputable contractor to do this <br /> uncovering, line testing, repair, and recovering, please advise us <br /> and we will assist you in this regard. <br /> You do have an immediate resposibility to advise your <br /> governing agency that you did not "pass" the annual precision tank <br /> test. At the same time you will need to advise them of the action <br /> you are taking to remedy the situation. <br /> Please advise if you need additional assistance or <br /> information. <br /> 800 262-8378 166 Fronk West Circle Stockton, CA 95206 (209) 466-8036 <br />