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STI External Tank Inspection Q <br /> UPRR—Stockton yard,Stockton,CA TNKO-0295 <br /> June 2019 <br /> antevigroup <br /> Emergency vent(PRIMARY) NA <br /> covers,pressure/vacuum <br /> poppets,and moving vent <br /> components move freely,are <br /> unobstructed,and have no <br /> evidence of seat and sealing <br /> surface degradation due to: <br /> Corrosion,Damage,Wear <br /> Emergency vent(SECONDARY NA <br /> INTERSTITIAL)covers, <br /> pressure/vacuum poppets,and <br /> moving vent components move <br /> freely,are unobstructed,and <br /> have no evidence of seat and <br /> sealing surface degradation due <br /> to: Corrosion,Damage,Wear <br /> Anti-siphon,check,and gate NA <br /> valves cycle open-close and/or <br /> operate correctly? <br /> Fire and shear valves cycle open- NA <br /> close easily,fusible link installed, <br /> and test ports are sealed with a <br /> pipe plug? <br /> Spill container in good condition NA <br /> with all connections tight and <br /> drain valves operable and <br /> closed?(Pressure System) <br /> Leak detectors for underground NA <br /> piping pass functionality test? <br /> Overfill equipment functional? NA <br /> Expansion relief valve in correct NA <br /> orientation? <br /> I NSU LTATED TAN KS <br /> Does the inspection of the tank NA <br /> insulation exhibit:Missing <br /> sections,areas of moisture, <br /> mold,damage? <br /> Does the insulation cover or NA <br /> jacket exhibit damage that will <br /> allowwater intrusion? <br /> MISCELLANEOUS <br /> Are electrical boxes,conduit and NA <br /> wiring intact,sealed and secure? <br /> Emergency disconnect is easily NA <br /> identifiable and shuts-off all <br /> power when actuated? <br /> Buried piping exposed? NA <br /> Out-of-service pipes capped or NA <br /> blank flanged? <br /> XINOGEW <br /> 4 us.artteagroup.00m <br />