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OF <br />Praxair Services, Inc. <br />Technical Solutions for the Industrial World. <br />UC/SCO d Tracer Research Corrocon <br />• ORIGINAL <br />2005 Jt . <br />is PM I * " <br />S�ENVIRONMEN COUNT <br />A'LTY <br />HEALTK DEPARTMENT <br />CERTIFICATION OF ELDsm TRACER TIGHT® TEST RESULTS <br />ELD TEST TYPE: Final <br />Date: 06/16/05 <br />Prepared For: <br />CGRS <br />5444 Dry Creek Rd. <br />Sacramento, CA 95838 <br />Start Date: 6/15/2005 End Date: 6/16/2005 <br />Job # 38196NC <br />Site Info: <br />Fremont Shell <br />2494 E. Fremont <br />Stockton, CA 95205 <br />SYSTEM TRACER STATUS <br />87 <br />Tank / Sumps <br />ANV <br />Pass <br />87 <br />Primary Pipe <br />W <br />Pass <br />91 <br />Tank / Sumps <br />ANV <br />Pass <br />91 <br />Primary Pipe <br />W <br />Pass <br />VR / Vent <br />Primary Pipe <br />W I <br />Pass <br />Dispenser Sumps <br />#1 4 <br />W I <br />Pass <br />Praxair Services Inc. certifies that the tank and product distribution lines listed in the above table have <br />been tested by means of Enhanced Tracer Tight& According to EPA standard test procedures for <br />evaluating leak detection methods, the Enhanced Tracer Tight® method is capable of detecting leaks of <br />>0.005gallons per hour with a Probability of Detection (PD) of 0.95 and Probability of false alarm of <0.05 <br />Tester: Nick Hill <br />Signature: <br />I declare under <br />State Lic. # 05-1701 <br />�� -) y` --,K-/ V Date: 6/16/2005 <br />of perjury that the information contained in this report is true and correct to the <br />best of my knowledge. <br />The following criteri use the classification of leakage based on the presence or absence of tracer. <br />PASS FAIL <br />Criteria: Criteria: <br />No Tracer Detected Tracer Detected <br />