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Grounding and Bonding do Observations Comments/Recommendations <br /> Are the Tanks Grounded And/Or Bonded No Ground tanks per NFPA 780 or other accepted industry <br /> Properly? standard. " <br /> Other N/A <br /> Stairways-Handrails-Platforms-Ladders •. rvations Comments/Recommendations <br /> Stairways- Handrails- Platforms- Ladders Fair Visually spotted some paint failure and corrosion, <br /> Recommend cleaning and painting. <br /> Other N/A <br /> 5.0 External Shell <br /> •. <br /> Tank External Coating Paint <br /> External Coating Condition Fair Recommend cleaning and painting. <br /> Other N/A <br /> Condition Of Welds Good <br /> Corrosion Yes Tank top, ladder, and around name plate there is some <br /> corrosion present, Recommend cleaning and painting. <br /> Evidence of Distortion No <br /> Mechanical Damage No <br /> Evidence of Leaks No <br /> Repads or Changes to Original Design? No <br /> Other jEast side Excessive corrosion, unable to obtain UT readings. <br /> Insulation . • a.�uiuiautyr.«K•�iuiiia�urnc.�. <br /> Insulation Missing? N/A <br /> Evidence of Moisture? N/A <br /> Evidence of Mold? N/A <br /> Damage to Insulation? N/A <br /> Corrosion Under Insulation? N/A <br /> Other <br /> I Tank Roof Observations Comments/Recommendations <br /> Standing Water(low areas)? No <br /> Coating Failure? Yes Recommend cleaning and painting. <br /> Other <br /> 6.0 Ultrasonic Thickness Testing <br /> Ultrasonic Thickness Testing UT measurements were taken on single wall tanks as required by STI SP001 formal <br /> external inspection protocol. See figure 1.1 for a summary of results. <br /> Instrument Manufacturer Olympus <br /> Model No. 38DL Plus <br /> Calibration Due Date Calibrated for use. <br /> Presentation -scan <br /> Transducer Manufacturer Panametrics <br /> Model No. D7906-SM <br /> Previous UTT Inspection Records Available? No <br /> Are UL 142 Steel Thickness Standards Being UL 142 manufacturing specifications will be used for comparison purposes. 9K horizontal <br /> Used For Comparison Purposes? tanks built to UL 142 standards will have a minimum steel thickness of.240" <br /> UTT Comments The mean or average reading taken was .272"on the sidewall and .292"on the end caps. <br /> Of the UT readings taken there were no indications requiring repair or further action. <br /> Other East sidewall has build up. Difficult to obtain UT readings. <br /> 6 <br />