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Tracer eaerarch Corporation <br /> I <br /> INTRODUCTION <br /> Horizon Engineering and Tracer Research Corporation performed Tracer TightOO leak <br /> testing of 3 underground storage tanks at the USA Petroleum#65 site in Lodi, CA. The tanks <br /> were inoculated with tracer on March 4, 1993. Samples were collected on March 24, 199:3 with <br /> sample vacuums of 3-14 inches lig. The following table shows the tank size, type of tracer in <br /> each tank, and the product through put factor in the first 72 hours after inoculation. <br /> 'TANK # SIZEIGAL TRACER FACTOR <br /> ' R <br /> Tank 1 12,000 F 1 <br /> Tank 2 12,000 D ] <br /> Tank 3 12,000 C 1 <br /> The following table shows the type of product in the tank, the product level and the water <br /> level in each tank measured in inches at time of inoculation and sampling. <br /> AT INOCULATION ALF SAMPLING <br /> 7AM. PRODUCT H2Q PRODUCT H2Q PRODUCT' <br /> Tank 1 Unl. Plus 0.00 67.00 0,00 59.00 <br /> Tank 2 Unleaded 0.00 47.00 0.00 47.00 <br /> Tank 3 Premium 0.00 42.00 0.00 36.00 <br /> The depth to water in the tank pit was determined to be>15 feet below grade. 'I'hc <br /> groundwater conditions were stable. <br /> �� 1 - <br />