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PRODUCT PIPING SUMP TESTING <br /> Test Method By: o Manufacturer • Industry standard o Professional Engr o Other(see below) <br /> Test Method Uses: O Pressure O Vacuum • Hydrostatic o Other(see below) <br /> Measuring Equipment Used: INCON TS-STS (Electronic Sump Test System) <br /> Description Tank#1 Tank#2 <br /> Tank product Gasoline-87 Gasoline 91 <br /> Sump material FRP FRP <br /> Sump diameter (inches) 48" 48" <br /> Sump depth (inches) 71" 72" <br /> Height from tank top to highest 20" 21" <br /> piping penetration (inches) <br /> Height from tank top to lowest 16" 17" <br /> electrical penetration (inches) <br /> Method of sump attachment to tank Tank Collar Tank Collar <br /> Condition of sump prior to testing Dry Dry <br /> Portion of sump tested Entire Entire <br /> Is system programmed for fail-safe operation? Unknown Unknown <br /> Was fail-safe verified to be operational? No No <br /> Was sensor removed for testing? Yes Yes <br /> Was sensor properly replaced after testing? Yes Yes <br /> Depth of water level from tank top (inches) 22" 23" <br /> Wait time for water level to stabilize (hr:min) 0:10 0:10 <br /> Test start time 9:28 AM 9:28 AM <br /> Initial Probe Reading 0.5770 0.3055 <br /> Test end time 9:43 AM 9:43 AM <br /> Final Probe Reading 0.5765 0.3052 <br /> Test duration (hr:min) 0:15 0:15 <br /> Change in water level (±0.0000 inches) -0.0005 -0.0003 <br /> Pass/Fail threshold (±0.0020 inches/:Hr.) 0.0020 0.0020 <br /> TEST RESULT PASS PASS <br /> Comments: <br /> 0 2006 Walton Engineering,Inc. <br />