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• API 653 In-Service Inspection Report <br /> for M <br /> Pacific Ethanol HMT Inspection <br /> Tank No. T-7704 August 8,2013 <br /> Stockton CA Page 21 of 42 <br /> 4.5 FIXED ROOF <br /> 4.5.1 FIXED ROOF INSPECTION CHECKLIST <br /> ITEM FIXED ROOF INSPECTION <br /> NO. COMMENTS <br /> 85 Roof plate condition(corrosion, pitting, coating failure,standing water) Acceptable <br /> ref.API 653, Paras.4.2.1.1 &421.2). <br /> 86 Visual inspection of low areas on roof for external corrosion. Locate Acceptable <br /> on layout ref.API 653, Paras.4.2.1.1 &4.2.1.2 . <br /> 87 Perform UT thickness readings on roof per work scope. Acceptable <br /> 88 Conduct Visual inspection of roof-to-shell joint(ref.API 653, Para. Acceptable <br /> 4.2.2.2). <br /> 89 Conduct Visual inspection of roof insulation. Inspect for damage(ref. NIA <br /> API 653, Paras.6.3.1 &6.3.2.2). <br /> 90 Manway 1 nozzle I appurtenance condition(ref.API 653, Para.4.2.4.5 Acceptable <br /> &API 650, Para. H.5.2.2). <br /> Identify pressure/vacuum vents or vents(quantity and sizes). Acceptable <br /> 91 (ref.API 653,Para.4.2.4.51 API 650, Para. H.5.2.2/API 650, Para. Type:Vacuum Breaker <br /> 5.8.5 . Size=2-inch <br /> 92 Inspect pressure 1 vacuum vent pallet assembly seals and screens NIA <br /> (weathering) ref.API 653, Para.4.2.4.5&API 650,Para.H.5.2.2 . <br /> . 93 Gauge hatch dean,operates freely and seals properly), NIA <br /> 94 Scaffold support is present and is in good condition(ref.APl 650, NIA <br /> Para.5.8.8 and Figure 5-221. <br /> 95 Level alarm mechanical damage) ref.APE 653, C.2.10.10 . NIA <br /> 96 Visual inspection of high-level and high-high-level alarms for dama e. NIA <br /> ALUMINUM DOME ROOF <br /> 97 Check perimeterflashin for damage. NIA <br /> 98 Evidence of leakin2 panels water areas on internal floater). NIA <br /> 99 Deterioration of skylights(crazing caused by UV light,cracking)(ref. NIA <br /> API 650 Para.G.2.6). <br /> 100 1 Panel caulking and seals entire roo ref.API 650 Para.G.2.5.1). NIA <br /> 101 Rain gutters(damaged or broken). NIA <br /> 102 Dome overhang screens in place and in good condition. NIA <br /> 103 Check dome roof support details for signs of damage or malfunction. NIA <br /> 104 Check roof for pinholes,tears,or other damage to the aluminum NIA <br /> sheeting. <br /> • RECEIVED <br /> APIRKNEA07 REV 2 23262888rr-7704r(Rev 1) 0 <br /> ENVIRONMENTAL HEALTH <br /> DEPARTMENT <br />