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TITLE 30ENVIRONMENTAL QUALITY
PART 1TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
CHAPTER 115CONTROL OF AIR POLLUTION FROM VOLATILE ORGANIC COMPOUNDS
SUBCHAPTER HHIGHLY-REACTIVE VOLATILE ORGANIC COMPOUNDS
DIVISION 3FUGITIVE EMISSIONS
RULE §115.781General Monitoring and Inspection Requirements

  (4) If a process unit complying with the requirements of paragraph (3) of this subsection using a four-year monitoring interval program has greater than or equal to 0.5% but less than 1.0% leaking blind flanges, caps, or plugs at the end of a pipe or line containing HRVOC, sight glasses, meters, gauges, connectors, bolted manways, heat exchanger heads, hatches, and sump covers, the owner or operator shall increase the monitoring frequency to one time every two years. An owner or operator may comply with the requirements of this paragraph by monitoring at least 40% of the components in the first year and the remainder of the components in the second year. The owner or operator may again elect to use the provisions of paragraph (3) of this subsection when the percent leaking components decreases to less than 0.5%.

  (5) If a process unit complying with requirements of paragraph (3) of this subsection using a four-year monitoring interval program has greater than or equal to 1.0% but less than 2.0% leaking blind flanges, caps, or plugs at the end of a pipe or line containing HRVOC, sight glasses, meters, gauges, connectors, bolted manways, heat exchanger heads, hatches, and sump covers, the owner or operator shall increase the monitoring frequency to one time per year. The owner or operator may again elect to use the provisions of paragraph (3) of this subsection when the percent leaking components decreases to less than 0.5%.

  (6) If a process unit complying with requirements of paragraph (3) of this subsection using a four-year monitoring interval program has 2.0% or greater leaking blind flanges, caps, or plugs at the end of a pipe or line containing HRVOC, sight glasses, meters, gauges, connectors, bolted manways, heat exchanger heads, hatches, and sump covers, the owner or operator shall increase the monitoring frequency to quarterly. The owner or operator may again elect to use the provisions of paragraph (3) of this subsection when the percent leaking components decreases to less than 0.5%.

(g) Except as provided in paragraph (2) of this subsection, the owner or operator shall use dataloggers and/or electronic data collection devices during all monitoring required by this section. The owner or operator shall transfer electronic data from electronic datalogging devices to an electronic or hard copy database within seven days of monitoring.

  (1) For all monitoring events in which an electronic data collection device is used, the collected monitoring data must include the identification of each component and each calibration run, the maximum screening concentration detected, the time of monitoring (i.e., the time that the organic vapor concentration is read or recorded for each component), a date stamp, an operator identification, an instrument identification, and calibration gas concentrations and certification dates.

  (2) The owner or operator may use paper logs where necessary or more feasible (e.g., small rounds (less than 100 components), re-monitoring following component repair, or when dataloggers are broken or not available), and shall record, at a minimum, the information required in paragraph (1) of this subsection. The owner or operator shall transfer any manually recorded monitoring data to the electronic or hard copy database within seven days of monitoring.

  (3) Each change to the database regarding the monitored concentration, date and time read, repair information, addition or deletion of components, or monitoring schedule must be detailed in a log or inserted as a notation in the database. All such changes must include the name of the person who made the change, the date of the change, and an explanation to support the change.

(h) For any components that the owner or operator elects to use the alternative work practice in §115.358 of this title, the following provisions apply.

  (1) The frequency for monitoring any components listed in this section must be the frequency determined according to §115.358 of this title, except as specified in paragraph (3) of this subsection.

  (2) The alternative monitoring schedules allowed under subsection (f) of this section are not allowed.

  (3) If the owner or operator elects to use the alternative work practice in §115.358 of this title to satisfy the hydrocarbon gas analyzer monitoring requirements of subsections (b)(4) or (e) of this section, the time limitations specified in subsections (b)(4) and (e) of this section on performing the monitoring continue to apply.

  (4) If the component is within a class of equipment (e.g., valves, flanges, etc.) that the owner or operator has elected to monitor using the alternative work practice in §115.358 of this title and the component meets all other conditions specified in §115.358 of this title for acceptable use of the alternative work practice, then the component may not be classified as difficult-to-monitor under subsection (b)(7)(B) of this section unless in order to image the component as required by §115.358 of this title the monitoring personnel would have to be elevated more than two meters above a permanent support surface or would require a permit for confined space entry as defined in 29 CFR §1910.146 (December 1, 1998). If the component does qualify as difficult-to-monitor using the alternative work practice in §115.358 of this title, the owner or operator may use either Method 21 in 40 CFR Part 60, Appendix A-7 (October 17, 2000) or the alternative work practice at the monitoring frequency specified in subsection (b)(7)(B) of this section.

  (5) An owner or operator electing to use the alternative work practice in §115.358 of this title may still classify a component as unsafe-to-monitor as allowed under subsection (b)(7)(A) of this section if the component cannot be safely monitored using either a hydrocarbon gas analyzer or the alternative work practice.

  (6) For any components subject to subsection (b)(3) of this section that are not subject to Method 21 monitoring under 40 CFR Parts 60, 61, 63, or 65, but the owner or operator is using the alternative work practice in §115.358 of this title to satisfy a Method 21 monitoring requirement under this chapter, the owner or operator may choose to comply with the following in lieu of the annual Method 21 monitoring in §115.358(f) of this title.

    (A) For any leak detected using the alternative work practice in §115.358 of this title, the owner or operator must perform a Method 21 test on the component to determine the leak concentration. The Method 21 test must be performed no later than one business day after the leak is detected using the alternative work practice in §115.358 of this title.

    (B) To qualify for this option, the percent leaking components of all the components selected for this option must be less than 2.0%.

    (C) The owner or operator shall perform a Method 21 test on each component selected for this option according to the frequencies specified in subsection (f) of this section. If the Method 21 test required under subparagraph (A) of this paragraph for any leak detected is within the same calendar year as the normally scheduled Method 21 test required under this subparagraph, the owner or operator may use the Method 21 test performed for subparagraph (A) of this paragraph to satisfy the requirements of this subparagraph.

    (D) If the owner or operator elects to follow the alternative schedules for annual Method 21 testing under this paragraph, the owner or operator shall provide notice of electing this option with the notification required under §115.358(g) of this title.


Source Note: The provisions of this §115.781 adopted to be effective January 17, 2003, 28 TexReg 113; amended to be effective November 13, 2003, 28 TexReg 9835; amended to be effective December 23, 2004, 29 TexReg 11623; amended to be effective June 24, 2010, 35 TexReg 5293

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