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State Water Resources Control Board Pagel of <br /> Home >> Water issues >> Programs >> Ust >> Leak Prevention >> Lgl 13 >>Vendors <br /> UST s -Programs LG 113 ...... ....... <br /> .............--- 'r, ... ... .... ......... <br /> Issue Date: August 23, 1999 <br /> Revision Date: April 8, 2003 <br /> Veeder-Root <br /> TLS 300, 350, 35011, 350PIus,450,TLS2, Red 3acket ProMax and ProPlus <br /> (Models 8463,8473, 8493 Magnetostrictive Probes) <br /> AUTOMATIC TANK GAUGING METHOD <br /> Certification Leak rate of 0.2 gph with PD = 99.5% and PFA = 1.6%for 2 hour test. <br /> Leak rate of 0.1 gph with PD = 96.0% and PFA = 3.4% for 5 hour test. <br /> Leak rate of 0.1 gph with PD = 96.2% and PFA = 2.2% for 4 hour test. <br /> Leak rate of 0.1 gph with PD = 96.4% and PFA = 1.5%for 3 hour test. <br /> Leak rate of 0.1 gph with PD = 97.3% and PFA = 2.3% for 2 hour test. <br /> Leak 0.126 gph for leak rate of 0.2 gph. <br /> Threshold 0.071 gph for leak rate of 0.1 gph. <br /> A tank system should not be declared tight if the test result indicates a loss or gain that <br /> equals or exceeds this threshold. <br /> Applicability Gasoline, diesel, aviation fuel. <br /> Other liquids with known coefficients of expansion and density may be tested after <br /> consultation with the manufacturer. <br /> Tank Maximum of 20,000 gallons. <br /> Capacity Tanks less than 95% full may be tested. Minimum product level required is based on tank <br /> diameter as follows: <br /> 48" dia/min 18"; <br /> 64" dia/min 21"; <br /> 72" dia/min 24"; <br /> 96" dia/min 30"; <br /> 126" dia/min 39"; <br /> 132" dia/min 39". <br /> For other tank diameters, see evaluation report. <br /> Waiting Minimum of 8 hours between delivery and testing for 2 hour test and leak rate of 0.2 gph. <br /> Time Minimum of 8 hours between delivery and testing for 5 hour test and leak rate of 0.1 gph. <br /> Minimum of 9 hours between delivery and testing for 4 hour test and leak rate of 0.1 gph. <br /> Minimum of 10 hours between delivery and testing for 3 hour test and leak rate of 0.1 gph. <br /> Minimum of 11 hours between delivery and testing for 2 hour test and leak rate of 0.1 gph. <br /> Minimum of 30 minutes between dispensing and testing. <br /> There must be no delivery during waiting time. <br /> Test Period Minimum of 2 hours. <br /> http://www.swrcb.ca.gov/water—issues/programs/ust/leA.prevention/lgl 13/vendors/veeder... 2/3/2009 <br />