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RULE §334.123Exemptions for Aboveground Storage Tanks (ASTs)

(a) The following aboveground storage tanks (ASTs) are exempt from regulation under this subchapter:

  (1) a farm or residential tank with a capacity of 1,100 gallons or less used for storing motor fuel for non-commercial purposes;

  (2) a tank used for storing heating oil for consumptive use on the premises where stored;

  (3) a septic tank;

  (4) a surface impoundment, pit, pond, or lagoon;

  (5) a stormwater or wastewater collection system;

  (6) a flow-through process tank;

  (7) a tank, liquid trap, gathering line, or other facility used in connection with an activity associated with the exploration, development, or production of oil, gas, or geothermal resources, or any other activity regulated by the Railroad Commission of Texas pursuant to the Texas Natural Resources Code, §91.101;

  (8) a tank located on or above the surface of the floor of an underground area, such as a basement, cellar, mineworking, drift, shaft, or tunnel, if the sole or principal substance in the tank is a hazardous substance; and

  (9) a tank that is located at or is part of a petrochemical plant, a petroleum refinery, an electric generating facility, or a bulk facility.

(b) The following pipeline facilities are exempt from regulation under this subchapter, as provided in Texas Water Code, §26.344:

  (1) an interstate pipeline facility, including gathering lines, or any AST connected to such facility, if the pipeline facility is regulated under the Hazardous Liquid Pipeline Safety Act of 1979 (49 United States Code, §60101, et seq. and its subsequent amendments or a succeeding law).

  (2) an intrastate pipeline facility or any AST connected to such a facility, if the pipeline facility is regulated under one of the following state laws:

    (A) the Texas Natural Resources Code, Chapter 111;

    (B) the Texas Natural Resources Code, Chapter 117; or

    (C) Texas Civil Statutes, Article 6053-1 and 6053-2.

(c) Upon request by the agency, the owner and operator of a tank claimed to be exempted under this section must provide appropriate documentation or other information in a timely manner to support that claim.

Source Note: The provisions of this §334.123 adopted to be effective June 25, 1990, 15 TexReg 3424; amended to be effective November 23, 2000, 25 TexReg 11442; amended to be effective May 31, 2018, 43 TexReg 3390

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