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California State Water Resources Control Board (February 6, 1992) <br /> Horner Creative Products, Inc. <br /> Horner Ezy-Chek II (overfilled Test) <br /> UST TIGHTNESS TEST METHOD <br /> Threshold: 0 . 05 gallon per hour (Po=99 .95% ; PFA=0. 050) <br /> Applicability: gasoline, diesel, aviation fuel, fuel oil m4 , or <br /> others ; <br /> Capacity: the maximum UST capacity shall be 12 , 000 gallons ; <br /> the UST must be .100 percent full ; <br /> Waiting Time: minimum waiting time between delivery and test data <br /> collection shall be six (6) hours ; <br /> minimum waiting time between "topping off" and test <br /> data collection shall be three (3) hours ; <br /> Test Period: the minimum data collection time shall be one hour <br /> and forty minutes (33 minutes monitor mode and 67 <br /> minutes test mode) ; <br /> leak rate calculated from data of last 67 minutes <br /> of test period; <br /> at the conclusion of the test mode, data must be <br /> checked for the manufacturer' s stop test criteria, <br /> if data does not meet the criteria data collection <br /> shall continue; <br /> test data shall be acquired and recorded by a <br /> computer; <br /> Ground Water: ground water depth must be determined and if the <br /> water table is above the bottom of the UST, the <br /> test procedure compensating for its presence must <br /> be used. <br /> Calibration: load cell must be calibrated before each use. <br /> Horner Creative Products Evaluator: W. A. Kibbe & Associates <br /> 212 Morton. Street <br /> Bay City, MI 48706 <br /> Tel : (517) 893-3360 State Review Completed: 11-21-90 <br /> 24 <br />