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• Determine safe product fill height; <br />• Determine shell corrosion rate and remaining life; <br />• Determine bottom corrosion rate and remaining life; <br />• Determine the inspection interval and suitability for continued service; <br />• Evaluate welds; <br />• Evaluate coatings and linings; <br />• Evaluate repairs for risk of brittle fracture; and <br />• Evaluate the tank to determine whether it is hydraulically sound and not leaking. <br />EPA suggests that an appropriately trained and qualified inspector conduct a hybrid inspection and <br />provide a detailed report of the findings. The qualifications of the tank inspector will depend on the condition <br />and circumstances of the tank (e.g., size, field -erected or shop -built), and a tank inspector should only conduct <br />an inspection to the extent he/she is qualified to do so. A registered PE may be able to perform the hybrid <br />inspection or could have a certified tank inspector (e.g., STI or API) complete the inspection.10 Either way, the <br />hybrid inspection program should be reviewed and certified by a PE in accordance with §112.3(d) (or <br />§112.6(b)(4) for Tier 11 qualified facilities). <br />EPA inspectors may review checklists that are used by facility personnel to conduct the frequent <br />inspections. Table 7-4 provides an example of the type of information that may be included on an <br />owner/operator-performed inspection checklist. <br />Note that industry inspection standards require the inspector'scenification number on these reports. <br />SPCC GUIDANCE FOR REGIONAL INSPECTORS 7-50 <br />December 16, 2013 <br />