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TITLE 30ENVIRONMENTAL QUALITY
PART 1TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
CHAPTER 101GENERAL AIR QUALITY RULES
SUBCHAPTER AGENERAL RULES
RULE §101.1Definitions

  (95) Sour crude--A crude oil that will emit a sour gas when in equilibrium at atmospheric pressure.

  (96) Sour gas--Any natural gas containing more than 1.5 grains of hydrogen sulfide per 100 cubic feet, or more than 30 grains of total sulfur per 100 cubic feet.

  (97) Source--A point of origin of air contaminants, whether privately or publicly owned or operated. Upon request of a source owner, the executive director shall determine whether multiple processes emitting air contaminants from a single point of emission will be treated as a single source or as multiple sources.

  (98) Special waste from health care-related facilities--A solid waste that if improperly treated or handled, may serve to transmit infectious disease(s) and that is comprised of the following: animal waste, bulk blood and blood products, microbiological waste, pathological waste, and sharps.

  (99) Standard conditions--A condition at a temperature of 68 degrees Fahrenheit (20 degrees Centigrade) and a pressure of 14.7 pounds per square inch absolute (101.3 kiloPascals).

  (100) Standard metropolitan statistical area--An area consisting of a county or one or more contiguous counties that is officially so designated by the United States Bureau of the Budget.

  (101) Submerged fill pipe--A fill pipe that extends from the top of a tank to have a maximum clearance of six inches (15.2 centimeters) from the bottom or, when applied to a tank that is loaded from the side, that has a discharge opening entirely submerged when the pipe used to withdraw liquid from the tank can no longer withdraw liquid in normal operation.

  (102) Sulfur compounds--All inorganic or organic chemicals having an atom or atoms of sulfur in their chemical structure.

  (103) Sulfuric acid mist/sulfuric acid--Emissions of sulfuric acid mist and sulfuric acid are considered to be the same air contaminant calculated as H2 SO4 and must include sulfuric acid liquid mist, sulfur trioxide, and sulfuric acid vapor as measured by Test Method 8 in 40 Code of Federal Regulations Part 60, Appendix A.

  (104) Sweet crude oil and gas--Those crude petroleum hydrocarbons that are not "sour" as defined in this section.

  (105) Total suspended particulate--Particulate matter as measured by the method described in 40 Code of Federal Regulations Part 50, Appendix B.

  (106) Transfer efficiency--The amount of coating solids deposited onto the surface or a part of product divided by the total amount of coating solids delivered to the coating application system.

  (107) True vapor pressure--The absolute aggregate partial vapor pressure, measured in pounds per square inch absolute, of all volatile organic compounds at the temperature of storage, handling, or processing.

  (108) Unauthorized emissions--Emissions of any air contaminant except water, nitrogen, ethane, noble gases, hydrogen, and oxygen that exceed any air emission limitation in a permit, rule, or order of the commission or as authorized by Texas Health and Safety Code, §382.0518(g).

  (109) Unplanned maintenance, startup, or shutdown activity--For activities with unauthorized emissions that are expected to exceed a reportable quantity or with excess opacity, an unplanned maintenance, startup, or shutdown activity is:

    (A) a startup or shutdown that was not part of normal or routine facility operations, is unpredictable as to timing, and is not the type of event normally authorized by permit; or

    (B) a maintenance activity that arises from sudden and unforeseeable events beyond the control of the operator that requires the immediate corrective action to minimize or avoid an upset or malfunction.

  (110) Upset event--An unplanned and unavoidable breakdown or excursion of a process or operation that results in unauthorized emissions. A maintenance, startup, or shutdown activity that was reported under §101.211 of this title (relating to Scheduled Maintenance, Startup, and Shutdown Reporting and Recordkeeping Requirements), but had emissions that exceeded the reported amount by more than a reportable quantity due to an unplanned and unavoidable breakdown or excursion of a process or operation is an upset event.

  (111) Utility boiler--A boiler used to produce electric power, steam, or heated or cooled air, or other gases or fluids for sale.

  (112) Vapor combustor--A partially enclosed combustion device used to destroy volatile organic compounds by smokeless combustion without extracting energy in the form of process heat or steam. The combustion flame may be partially visible, but at no time does the device operate with an uncontrolled flame. Auxiliary fuel and/or a flame air control damping system that can operate at all times to control the air/fuel mixture to the combustor's flame zone, may be required to ensure smokeless combustion during operation.

  (113) Vapor-mounted seal--A primary seal mounted so there is an annular space underneath the seal. The annular vapor space is bounded by the bottom of the primary seal, the tank wall, the liquid surface, and the floating roof or cover.

  (114) Vent--Any duct, stack, chimney, flue, conduit, or other device used to conduct air contaminants into the atmosphere.

  (115) Visible emissions--Particulate or gaseous matter that can be detected by the human eye. The radiant energy from an open flame is not considered a visible emission under this definition.

  (116) Volatile organic compound--As defined in 40 Code of Federal Regulations §51.100(s), except §51.100(s)(2) - (4), as amended on March 27, 2014 (79 FR 17037).

  (117) Volatile organic compound (VOC) water separator--Any tank, box, sump, or other container in which any VOC, floating on or contained in water entering such tank, box, sump, or other container, is physically separated and removed from such water prior to outfall, drainage, or recovery of such water.


Source Note: The provisions of this §101.1 adopted to be effective January 1, 1976; amended to be effective May 7, 1979, 4 TexReg 1358; amended to be effective August 22, 1980, 5 TexReg 3241; amended to be effective April 16, 1981, 6 TexReg 1240; amended to be effective March 17, 1982, 7 TexReg 901; amended to be effective December 30, 1982, 7 TexReg 4388; amended to be effective July 14, 1983, 8 TexReg 2402; amended to be effective October 25, 1985, 10 TexReg 3896; amended to be effective January 27, 1988, 13 TexReg 295; amended to be effective April 14, 1988, 13 TexReg 1539; amended to be effective December 21, 1988, 13 TexReg 6081; amended to be effective July18,1989, 14 TexReg 3285; amended to be effective February 7, 1990, 15 TexReg 434; amended to be effective June 8, 1990, 15 TexReg 2913; amended to be effective November 14, 1990, 15 TexReg 6300; amended to be effective October 22, 1991, 16 TexReg 5596; amended to be effective December 26, 1991, 16 TexReg 7205; amended to be effective February 19, 1992, 17 TexReg 1125; amended to be effective July 13, 1992, 17 TexReg 4608; amended to be effective November 15, 1992, 17 TexReg 4777; amended to be effective November 16, 1992, 17 TexReg 7781; amended to be effective March 15, 1993, 18 TexReg 1411; amended to be effective September 13, 1993, 18 TexReg 5746; amended to be effective December 3, 1993, 18 TexReg 8535; amended to be effective May 27, 1994, 19 TexReg 3701; amended to be effective August 16, 1994, 19 TexReg 5953; amended to be effective November 14, 1994, 19 TexReg 8674; amendedto be effective March 7, 1996, 21 TexReg 1544; amended to be effective May 22, 1997, 22 TexReg 4211; amended to be effective July 16, 1997, 22 TexReg 6446; amended to be effective August 5, 1997, 22 TexReg 7040; amended to be effective October 22, 1997, 22 TexReg 10319; amended to be effective December 23, 1999, 24 TexReg 11494; amended to be effective July 23, 2000, 25 TexReg 6727; amended to be effective October 18, 2001, 26 TexReg 8073; amended to be effective September 12, 2002, 27 TexReg 8499; amended to be effective June 15, 2005, 30 TexReg 3408; amended to be effective January 5, 2006, 30 TexReg 8884; amended to be effective August 16, 2007, 32 TexReg 4985; amended to be effective April 1, 2010, 35 TexReg 2556; amended to be effective March 3, 2011, 36 TexReg 1294; amended to be effective May 15, 2011, 36 TexReg 2841; amended to be effective April 17, 2014, 39 TexReg 2875;amended to be effective July 28, 2016, 41 TexReg 5428

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