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ORIGINA1 <br /> Praxair Services, Inc. o <br /> Technical Solutions for the Industrial World. <br /> UC/SCO jTracer Research Corrocon ✓/'/ �� <br /> �� O <br /> CERTIFICATION OF ELDSM TRACER TIGHT® TEST RESULTS �'Fq�T0�S <br /> ELD TEST TYPE: Final �'�/RFs Ty <br /> Date: 06/03/05 Job # 38164NC <br /> Prepared For: Site Info: <br /> CGRS 99 Shell <br /> 5444 Dry Creek 7700 Moreland St. <br /> Sacramento, CA Stockton, CA <br /> Start Date: 6/1/2005 End Date: 6/3/2005 <br /> SYSTEM TRACER STATUS <br /> 87 Tank/Sumps A Pass <br /> 87 Primary Pipe W Pass <br /> 91 Tank/Sumps A Pass <br /> 91 Primary Pipe W Pass <br /> VR/Vent Primary Pipe W Pass <br /> Diesel Tank/Sumps A Pass <br /> Diesel Primary Pipe W Pass <br /> Diesel Vent Primary A Pass <br /> Dispenser Sumps #1 41 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 State Lic.# 05-1701 <br /> Signature: Date: 6/3/2005 <br /> I declare under pen ty 4-P that the information contained in this report is true and correct to the <br /> best of my knowledge. <br /> The following criteria are used for the classification of leakage based on the presence or absence of <br /> tracer. <br /> PASS FAIL <br /> Criteria: Criteria: <br /> No Tracer Detecte Tracer Detected <br /> se my <br /> Certification Confirmed by: Q / 4 Date: p j gV �� <br />