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PRODUCT PIPING SUMP TESTING <br /> Test Method By: O Manufacturer 0 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 Tank#3 <br /> Tank product Gasoline-87 Gasoline-89 Gasoline-91 <br /> Sump material FRP FRP FRP <br /> Sump diameter (inches) 42 42 42 <br /> Sump depth (inches) 42 43 44 <br /> Height from tank top to highest 6 7 7 <br /> piping penetration (inches) <br /> Height from tank top to lowest 10 9 10 <br /> electrical penetration (inches) <br /> Method of sump attachment to tank Manway Manway Manway <br /> Condition of sump prior to testing <br /> Portion of sump tested Entire <br /> Is system programmed for fail-safe operation? Unknown <br /> Was fail-safe verified to be operational? No <br /> Was sensor removed for testing? Yes <br /> Was sensor properly replaced after testing? Yes <br /> Depth of water level from tank top (inches) 12 <br /> Wait time for water level to stabilize (hr:min) 0:15 <br /> Test start time 1:04 PM <br /> Initial Probe Reading 4.8372 <br /> Test end time 1:19 PM <br /> Final Probe Reading 4.8375 <br /> Test duration (hr:min) 0:15 <br /> Change in water level (±0.0000 inches) 0.0003 <br /> Pass/Fail threshold (±0.0020 inches/'z Hr.) 0.0020 <br /> TEST RESULT PASS <br /> Comments: <br /> This is are-test of the 91 STP sump after repairs. Previously tested by Walton on-11-14-06. <br /> © 2006 Walton Engineering,Inc. <br />