Ind. Admin. Code tit. 326, r. 14-9-5 – Equipment leaks

Sec. 5. (a) Each owner or operator of equipment in benzene service shall comply with the requirements of 326 IAC 14-8 and 40 CFR 61, Subpart V*, except as provided in this section.

(b) The provisions of 40 CFR 61.242-3* and 61.242-9*, do not apply to this rule.

(c) Each piece of equipment in benzene service to which this rule applies shall be marked in such a manner that it can be distinguished readily from other pieces of equipment.

(d) Each exhauster shall be monitored quarterly to detect leaks by the methods specified in 326 IAC 14-8-3(a) and 40 CFR 61.245(b)*, except as provided in subsections (e), (f), and (g) and section 6(c) of this rule.

(1) If an instrument reading of ten thousand (10,000) ppm or greater is measured, a leak is detected.
(2) When a leak is detected, it shall be repaired as soon as practicable, but no later than fifteen (15) calendar days after it is detected, except as provided in 40 CFR 61.242-10(a)* and 40 CFR 61.242-10(b)*. A first attempt at repair shall be made no later than five (5) calendar days after each leak is detected.

(e) Each exhauster equipped with a seal system that includes a barrier fluid system and that prevents leakage of process fluids to the atmosphere is exempt from the requirements of subsection (d) provided the following requirements are met:

(1) Each exhauster seal system is:
1. (A) operated with the barrier fluid at a pressure that is greater than the exhauster stuffing box pressure; or
2. (B) equipped with a barrier fluid system that is connected by a closed vent system to a control device that complies with the requirements of 40 CFR 61.242-11*; or
3. (C) equipped with a system that purges the barrier fluid into a process stream with zero (0) benzene emissions to the atmosphere.
(2) The barrier fluid is not in benzene service.
(3) Each barrier fluid system shall be equipped with a sensor that will detect failure of the seal system, barrier fluid system, or both.
(4) Each sensor as described in subsection (e)(3) shall be checked daily or shall be equipped with an audible alarm.
(5) The owner or operator shall determine, based on design consideration and operating experience, a criterion that indicates failure of the seal system, the barrier fluid system, or both.
(6) If the sensor indicates failure of the seal system, the barrier system, or both, based on the criterion determined under subdivision (5), a leak is detected.
(7) When a leak is detected, it shall be repaired as soon as practicable, but not later than fifteen (15) calendar days after it is detected, except as provided in 40 CFR 61.242-10*.
(8) A first attempt at repair shall be made no later than five (5) calendar days after each leak is detected.

(f) An exhauster is exempt from the requirements of subsection (d) if it is equipped with a closed vent system capable of capturing and transporting any leakage from the seal or seals to a control device that complies with the requirements of 40 CFR 61.242-11* except as provided in subsection (g).

(g) Any exhauster that is designated, as described in 326 IAC 14-8-4(d) through 326 IAC 14-8-4(g) and in 40 CFR 61.246(e)* for no detectable emissions, as indicated by an instrument reading of less than five hundred (500) ppm above background, is exempt from the requirements of subsection (d) if the exhauster:

(1) is demonstrated to be operating with no detectable emissions, as indicated by an instrument reading of less than five hundred (500) ppm above background, as measured by the methods specified in 326 IAC 14-8-3(b) and in 40 CFR 61.245(c)*; and
(2) is tested for compliance with subdivision (1) initially upon designation, annually, and at other times requested by the commissioner.

(h) Any exhauster that is in vacuum service is excluded from the requirements of this rule if it is identified as required in 326 IAC 14-8-4(d) and in 40 CFR 61.246(e)(5)*.

*These documents are incorporated by reference. Copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center-North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.

(Air Pollution Control Division; 326 IAC 14-9-5; filed Apr 13, 1988, 3:30 p.m.: 11 IR 3015; readopted filed Jan 10, 2001, 3:20 p.m.: 24 IR 1477; filed Aug 26, 2004, 11:30 a.m.: 28 IR 84; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)