Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 218 - ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE CHICAGO AREA › Subpart B - ORGANIC EMISSIONS FROM STORAGE AND LOADING OPERATIONS › Section 218.127 - Testing VOL Operations

Current through Register Vol. 48, No. 28, July 12, 2024
The owner or operator of each storage vessel specified in
				  Section
				  218.119 of
				  this Subpart shall comply with the requirements of subsection (a), (b), or (c)
				  below. The applicable subsection for a particular storage vessel depends on the
				  control equipment installed to meet the requirements of this Subpart.
a) After installing the control equipment
				necessary for the source to comply with the requirements of Section
				218.120(a)(1)
				or (2) of this Subpart (permanently affixed
				roof and internal floating roof), each owner or operator shall:
1) Visually inspect the internal floating
				roof, the primary seal, and the secondary seal (if one is in service) prior to
				filling the storage vessel with VOL. If there are holes, tears, or other
				openings in the primary seal, the secondary seal, or the seal fabric or defects
				in the internal floating roof, or both, the owner or operator shall repair the
				items before filling the storage vessel.
2) For vessels equipped with a liquid-mounted
				or mechanical shoe primary seal, visually inspect the internal floating roof
				and the primary seal or the secondary seal (if one is in service) through
				manholes and roof hatches on the fixed roof at least once every 12 months after
				initial fill. If the internal floating roof is not resting on the surface of
				the VOL inside the storage vessel, or if there is liquid accumulated on the
				roof, or if the seal is detached, or if there are holes or tears in the seal
				fabric, the owner or operator shall repair the items or empty and remove the
				storage vessel from service within 45 days. If a failure that is detected
				during inspections required in this subsection cannot be repaired within 45
				days and if the vessel cannot be emptied within 45 days, the owner or operator
				may request a 30-day extension from the Agency in the inspection report
				required in Section
				218.129(a)(3)
				of this Subpart. Such a request for an extension must document that alternate
				storage capacity is unavailable and specify a schedule of actions the owner or
				operator will take that will assure that the control equipment will be repaired
				or the vessel will be emptied within 30 days.
3) For vessels equipped with both primary and
				secondary seals:
A) Visually inspect the
				vessel as specified in subsection (a)(4) below at least every 5 years;
				or
B) Visually inspect the vessel
				as specified in subsection (a)(2) above.
4) Visually inspect the internal floating
				roof, the primary seal, the secondary seal (if one is in service), gaskets,
				slotted membranes, and sleeve seals (if any) each time the storage vessel is
				emptied and degassed. If the internal floating roof has defects, the primary
				seal has holes, tears, or other openings in the seal, or if the seal fabric or
				the secondary seal has holes, tears, or other openings in the seal, or if the
				seal fabric or the gaskets no longer close off the liquid surfaces from the
				atmosphere, or if the slotted membrane has more than 10 percent open area, the
				owner or operator shall repair the items as necessary so that none of the
				conditions specified in this subsection exists before refilling the storage
				vessel with VOL. In no event shall inspections conducted in accordance with
				this provision occur at intervals greater than 10 years in the case of vessels
				conducting the annual visual inspection as specified in subsections (a)(2) and
				(a)(3)(B) above and at intervals no greater than 5 years in the case of vessels
				specified in subsection (a)(3)(A) above.
5) Notify the Agency in writing at least 30
				days prior to the filling or refilling of each storage vessel for which an
				inspection is required by subsections (a)(1) and (a)(4) above to afford the
				Agency the opportunity to have an observer present. If the inspection required
				by subsection (a)(4) above is not planned and the owner or operator could not
				have known about the inspection 30 days in advance of refilling the tank, the
				owner or operator shall notify the Agency at least 7 days prior to the
				refilling of the storage vessel. Notification shall be made by telephone
				immediately followed by written documentation demonstrating why the inspection
				was unplanned. Alternatively, this notification including the written
				documentation may be made in writing and sent by express mail so that it is
				received by the Agency at least 7 days prior to the refilling.