326 Ind. Admin. Code 8-9-5

Current through December 4, 2024

Section 326 IAC 8-9-5 - Testing and procedures

Authority: IC 13-14-8; IC 13-17-3-4

Affected: IC 13-17

Sec. 5.

(a) The owner or operator of each vessel subject to section 4(a) of this rule shall meet the applicable requirements of subsection (b), (c), or (d).

(b) Except as provided in section 4(a)(2) of this rule, the owner or operator of each vessel equipped with an internal floating roof shall meet the following requirements:

(1) Prior to filling the vessel with VOL, the owner or operator shall do the following:

(A) Visually inspect the:

(i) internal floating roof;

(ii) primary seal; and

(iii) secondary seal, if one is in service.

(B) Conduct repairs prior to filling the vessel if there are:

(i) holes, tears, or other openings in the:

(AA) primary seal;

(BB) secondary seal; or

(CC) seal fabric; or

(ii) defects in the internal floating roof.

(2) For vessels equipped with a liquid-mounted or mechanical shoe primary seal, complete the following:

(A) Visually inspect the internal floating roof, primary seal, and secondary seal if one is in service:

(i) through manholes and roof hatches on the fixed roof; and

(ii) at least once every twelve (12) months after the initial fill.

(B) Conduct repairs or empty and remove the vessel from service within forty-five (45) days if:

(i) the internal floating roof is not resting on the surface of the VOL inside the vessel;

(ii) there is liquid accumulated on the roof;

(iii) the seal is detached; or

(iv) there are holes or tears in the seal fabric.

(C) The owner or operator may request a thirty (30) day extension to the requirement in clause (B) as follows:

(i) The extension may be requested from the department if:

(AA) a failure that is detected during inspections required in this section cannot be repaired in forty-five (45) days; and

(BB) the vessel cannot be emptied within forty-five (45) days.

(ii) A request for an extension must:

(AA) be made in the inspection report required in section 6(c)(3) of this rule;

(BB) document that alternate storage capacity is unavailable; and

(CC) specify a schedule of actions the owner or operator will take that will ensure that the control equipment will be repaired or the vessel will be emptied as soon as possible.

(3) For vessels equipped with both primary and secondary seals, visually inspect the vessel as specified in:

(A) subdivision (4), at least every five (5) years; or

(B) subdivision (2).

(4) Each time the vessel is emptied and degassed, complete the following:

(A) Visually inspect the:

(i) internal floating roof;

(ii) primary seal;

(iii) secondary seal, if one is in service;

(iv) gaskets;

(v) slotted membranes; and

(vi) sleeve seals.

(B) Perform an internal out-of-service inspection in accordance with 40 CFR 60.113b(a)(4) *.

(C) Conduct repairs as necessary before refilling the vessel with VOL so that none of the following conditions exist:

(i) The internal floating roof has defects.

(ii) The primary seal has holes, tears, or other openings in the seal or the seal fabric.

(iii) The secondary seal has holes, tears, or other openings in the seal or the seal fabric.

(iv) The gaskets no longer close off the liquid surfaces from the atmosphere.

(v) The slotted membrane has more than ten percent (10%) open area.

(5) If a vessel that is subject to the annual visual inspection specified in subdivisions (2) and (3)(B) has not been emptied and degassed within ten (10) years, or if a vessel specified in subdivision (3)(A) has not been emptied and degassed within five (5) years, conduct an inspection while the vessel is in service in:

(A) accordance with 40 CFR 63.1063(d)(1)(i) through 40 CFR 63.1063(d)(1)(v)*; and

(B) its entirety from the top side of the internal floating roof.

(6) Provide notification to the department as follows:

(A) Except under clause (B), notify the department in writing at least thirty (30) days prior to the filling or refilling of each vessel for which an inspection is required by subdivisions (1) and (4) to afford the department the opportunity to have an observer present.

(B) Notify the department at least seven (7) days prior to the refilling of the vessel in accordance with clause (C) if:

(i) the inspection required by subdivision (4) is not planned; and

(ii) the owner or operator could not have known about the inspection thirty (30) days in advance of refilling the vessel.

(C) Notification under clause (B) must be made:

(i) by telephone immediately followed by written documentation demonstrating why the inspection was unplanned; or

(ii) in writing, including documentation, and sent, either electronically or by express mail so that it is received by the department at least seven (7) days prior to the refilling.

(c) Except as provided in section 4(a)(3) of this rule, the owner or operator of each vessel equipped with an external floating roof shall meet the following requirements:

(1) Determine the seal gaps as follows:

(A) Measurements of gaps between the vessel wall and the primary seal must be performed:

(i) during the hydrostatic testing of the vessel or within sixty (60) days of the initial fill with VOL; and

(ii) at least once every five (5) years thereafter.

(B) Measurements of gaps between the vessel wall and the secondary seal must be performed:

(i) within sixty (60) days of the initial fill with VOL; and

(ii) at least once per year thereafter.

(C) If any source ceases to store VOL for a period of one (1) year or more, subsequent introduction of VOL into the vessel is considered an initial fill for purposes of this subdivision.

(2) Determine gap widths and areas in the primary and secondary seals individually by the following procedures:

(A) Measure seal gaps, if any, at one (1) or more floating roof levels when the roof is floating off the roof leg supports.

(B) Measure seal gaps around the entire circumference of the vessel in each location where a one-eighth (1/8) inch diameter uniform probe passes freely between the seal and the wall of the vessel, without forcing or binding against the seal, and measure the circumferential distance of each location.

(C) The total surface area of each gap described in clause (B) must be determined by:

(i) using probes of various widths to measure accurately the actual distance from the vessel wall to the seal; and

(ii) multiplying each width by its respective circumferential distance.

(3) Add the gap surface area of each gap location for the primary seal and the secondary seal individually and divide the sum for each by the nominal diameter of the vessel and compare each ratio to the respective standards in subdivision (4).

(4) Make necessary repairs or empty the vessel within forty-five (45) days of identification of the seals not meeting the requirements listed in clauses (A) through (C) as follows:

(A) The accumulated area of gaps between the vessel wall and the mechanical shoe or liquid-mounted primary seal must not exceed ten (10) square inches per foot of vessel diameter, and the width of any portion of any gap must not exceed one and five-tenths (1.5) inches.

(B) There must be no holes, tears, or other openings in the shoe, seal fabric, or seal envelope.

(C) The secondary seal must meet the following requirements:

(i) The secondary seal must be installed above the primary seal so that it completely covers the space between the roof edge and the vessel wall except as provided in subdivision (2)(C).

(ii) The accumulated area of gaps between the vessel wall and the secondary seal used in combination with a metallic shoe or liquid-mounted primary seal must not exceed one (1) square inch per foot of vessel diameter, and the width of any portion of any gap shall not exceed five-tenths (0.5) inch.

(iii) There must be no gaps between the vessel wall and the secondary seal when used in combination with a vapor-mounted primary seal.

(iv) There must be no holes, tears, or other openings in the seal or seal fabric.

(D) The owner or operator may request a thirty (30) day extension to the requirements of this subdivision as follows:

(i) The extension may be requested from the department if:

(AA) a failure that is detected during inspections required in subdivision (1) cannot be repaired within forty-five (45) days; and

(BB) the vessel cannot be emptied within forty-five (45) days.

(ii) A request for an extension must:

(AA) be made in the inspection report required in section 6(d)(3) of this rule;

(BB) document that alternate storage capacity is unavailable; and

(CC) specify a schedule the owner or operator will take that will ensure that the control equipment will be repaired or the vessel will be emptied as soon as possible.

(5) Notify the department thirty (30) days in advance of any gap measurements required by subdivision (1) to afford the department the opportunity to have an observer present.

(6) Prior to filling the vessel with VOL, complete the following:

(A) Visually inspect the:

(i) external floating roof;

(ii) primary seal;

(iii) secondary seal; and

(iv) fittings.

(B) Conduct repairs as necessary before filling or refilling the vessel with VOL so that none of the following conditions exist:

(i) The external floating roof has defects.

(ii) The primary seal has holes, tears, or other openings in the seal or the seal fabric.

(iii) The secondary seal has holes, tears, or other openings in the seal fabric.

(C) Provide notification to the department as follows:

(i) Notify the department in writing at least thirty (30) days prior to the filling or refilling of each vessel to afford the department the opportunity to inspect the vessel prior to the filling.

(ii) Notify the department at least seven (7) days prior to the refilling of the vessel if the:

(AA) inspection required by this subdivision is not planned; and

(BB) owner or operator could not have known about the inspection thirty (30) days in advance of refilling the vessel.

(iii) Notification under item (ii) must be made:

(AA) by telephone immediately followed by written documentation demonstrating why the inspection was unplanned; or

(BB) in writing, including documentation, and sent, either electronically or by express mail so that it is received by the department at least seven (7) days prior to the refilling.

(d) The owner or operator of each vessel that is equipped with a closed vent system and control device described in section 4(a)(1)(B), 4(a)(2)(B), or 4(a)(3)(B) of this rule and meeting the requirements of section 4(d) of this rule, other than a flare, shall meet the following requirements:

(1) Prior to the initial filling of the vessel, submit to the department an operating plan containing the following information:

(A) Documentation demonstrating that the control device will achieve the required control efficiency during maximum loading conditions including the following:

(i) A description of the gas stream that enters the control device, including flow and VOC content under varying liquid level conditions (dynamic and static).

(ii) The manufacturer's design specifications for the control device.

(iii) If the control device or the closed vent capture system receives vapor gases, or liquid other than fuels from sources that are not subject to this rule, the efficiency demonstration must include consideration of all vapors, gases, and liquids received by the closed vent capture system and control device.

(iv) If an enclosed combustion device with a minimum residence time of seventy-five hundredths (0.75) second and a minimum temperature of eight hundred sixteen (816) degrees Centigrade is used to meet the ninety-five percent (95%) requirement, documentation that those conditions will exist is sufficient to meet the requirements of this subdivision.

(B) A description of the parameter or parameters to be monitored to ensure that the control device will be operated in conformance with its design and an explanation of the criteria used to monitor the parameter or parameters.

(2) Operate the closed vent system and control device and monitor the parameters of the closed vent system and control device in accordance with the operating plan submitted to the department in accordance with subdivision (1) unless the plan was modified by the department during the review process, in which case the modified plan applies.

(e) The owner or operator of each source that is equipped with a closed vent system and a flare to meet the requirements in section 4(a)(4) or 4(d) of this rule shall meet the requirements specified in the general control device requirements in 40 CFR 60.18(e) * and 40 CFR 60.18(f) *.

*These documents are incorporated by reference. Copies may be obtained from the Government Publishing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review at the Indiana Department of Environmental Management, Office of Legal Counsel, Indiana Government Center North, Thirteenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.

326 IAC 8-9-5

Air Pollution Control Board; 326 IAC 8-9-5; filed Dec 19, 1995, 3:10 p.m.: 19 IR 1059; errata filed Dec 12, 2002, 3:35 p.m.: 26 IR 1568; filed Aug 26, 2004, 11:30 a.m.: 28 IR 54

Filed 7/16/2018, 1:37 p.m.: 20180815-IR-326150427FRA