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Name of ATGS TLS Series 300/400 Monitoring Systems with Manifolded Tanks CSLD <br />Version 8473 Maanetostrictive Probe <br />Test Conditions During Evaluation <br />The data evaluation set included data from tanks of the following sizes <br />Tank Size (gallons) <br />5929 <br />10,000 <br />12,068 <br />24,284 <br />29,146 <br />Ref <br />cords <br />Percentile of Records <br />Min <br />20th <br />Median <br />(50th) <br />80th <br />Max <br />46 <br />The tanks had various monthly throughputs: <br />Percentile of Records <br />20th <br />50 (median) <br />80th <br />Maximum <br />Monthly throughput (gallons) <br />8,130 <br />23,410 <br />102.925 <br />226,848 <br />The data included 19 records during hot weather months. <br />15 records during mild weather months. <br />12 records during cold weather months. <br />The temperature difference between product added to fill the tanks and product already in the <br />tank ranged from —35.7 OF to 35.3 OF, with a standard deviation of 7_7 OF. <br />The tests were conducted with the tank product levels ranging from 4% to 99% full. <br />Limitations on the Results <br />The performance estimates above are only valid when: <br />• The method has not been substantially changed. <br />• The vendor's instructions for installing and operating the ATGS are followed. <br />• The tank contains a product identified on the method description form. <br />• The tank is no larger than 37.000 gallons. <br />• The data records cover <br />days or more. (See Below) <br />Other limitations specified by toe vendor or determined during testing: <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 />ATGS—CSLD Method Results Form Page 2 of 3 <br />