Reduction in the Release of Volatile Organic Compounds (Storage and Loading of Volatile Petroleum Liquids) Regulations — 93
Inspection every 20 years 93 (1) The operator of a facility must ensure that each internal floating roof at the facility and the interior of the tank in which it is installed are inspected every 20 years and that the inspection includes (a) a measurement of the seal gap under the control conditions and in accordance with the procedure described in Schedule 4, unless the rim seal is being replaced at the time of the inspection; (b) an inspection of all hatches, covers and other emissions control devices, including seals and internal floats, to locate tears, holes, corrosion, swelling, embrittlement or any other damage that would reduce their emissions control efficacy; (c) if applicable, a test operation of the hatches to verify that they seal automatically after use; (d) if the tank is not in service at the time of inspection, the servicing, testing or replacement of vents and vacuum breakers to ensure that they are in good working order and that they will remain closed when the floating roof is floating on the liquid; (e) an inspection of the floating roof and all other emissions control equipment for structural defects and corrosion; (f) an inspection of the seams in the internal floating roof for potential vapour leaks or liquid leaks, openings or damage; (g) if the tank is not in service at the time of inspection, an inspection of the inside of the pontoons and a determination of the value of the LEL% inside the pontoons to detect vapour leaks and liquid leaks; (h) if applicable, an inspection of the bolting bar on the rim-mounted secondary seals for corrosion and broken welds; (i) if applicable, a test operation of the liquid level alarms and automatic gauging systems; (j) if applicable, a visual inspection of the inside of the guide pole for protrusions that are likely to damage the vapour control float; (k) if applicable, an inspection of the vapour control float or cover inside the guide pole; and (l) an inspection of the exposed part of the internal wall of the tank for grooving, corrosion, coating failures and out-of-roundness. Start of period (2) The 20-year period referred to in subsection (1) is considered to have begun on the later of the following days: (a) the day on which the tank was first in service, but only if the operator’s records demonstrate that all tests or inspections verifying the correct installation and function of the tank and the internal floating roof that are required by design specifications have been performed; and (b) the day on which the most recent internal inspection of the tank was performed, but only if the operator’s inspection report demonstrates that the inspection was completed by a person who holds a valid API 653 - Aboveground Storage Tank Inspector certificate issued by the American Petroleum Institute. No applicable days (3) If neither of the days referred to in paragraphs (2)(a) and (b) applies or if the applicable day has occurred more than ten years before the day on which these Regulations come into force, the operator must ensure that the first inspection required under subsection (1) is performed no later than ten years after the day on which these Regulations come into force.