Unless otherwise noted, all terms contained in this section are defined by their plain meaning. This section contains definitions that are applicable only to this subchapter and that supersede definitions in §330.3 of this title (relating to Definitions) where those terms appear in this subchapter. As used in this subchapter, words in the singular include the plural and words in the plural include the singular. The following words and terms, when used in this subchapter, have the following meanings.
  (1) Alteration--Minor changes and standard redesign activities common in residential and commercial structures, such as moving walls and doors, that will not affect the foundation or increase the horizontal extent of the foundation.
  (2) Authorization--A written approval issued by the executive director that, by its conditions, may allow the disturbance of the integrity of the final cover.
  (3) Closed municipal solid waste landfill--A permitted or previously permitted municipal solid waste landfill, a municipal solid waste landfill which has never been permitted, or a dumping area as defined in this section, which stopped receiving waste and completed the closure activities.
  (4) Closure plan--A plan addressing the placement of a final cap on a closed municipal solid waste landfill where waste is exposed or the existing cap is inadequate.
  (5) Construction--The inception of an activity that provides improvements necessary for the utilization of an enclosed structure.
  (6) Develop and/or development--Any activity on or related to real property that is intended to lead to the construction or alteration of an enclosed structure for the use and/or occupation of people for an industrial, commercial, or public purpose or to the construction of residences for three or more families, including subdivisions that will include single-family homes and duplexes.
  (7) Development permit--A written permit issued by the executive director that, by its conditions, may authorize a person or persons to develop an enclosed structure over a closed municipal solid waste landfill unit. The development permit does not supersede local building and development permits, but is an additional permit.
  (8) Dumping area--An non-permitted area of land or an excavation with unknown boundaries or which have had the boundaries determined through subsequent investigation that has received only municipal solid waste or municipal solid waste combined with other solid wastes, including but not limited to, construction/demolition waste, commercial solid waste, nonhazardous sludge, conditionally exempt small-quantity generator hazardous waste, and industrial solid waste, and that is not a land treatment unit, surface impoundment, injection well, or waste pile as those terms are defined in §330.3 of this title (relating to Definitions).
  (9) Enclosed structure or structure--Any permanent structure that is intended to be or has the potential of being used or occupied by people for an industrial, commercial, public, or residential purpose.
  (10) Essential improvements--All improvements and appurtenances including, but not limited to, the excavations for the structure, installation of utilities, on-site wastewater disposal facilities, grading and drainage improvements, access drives and parking lots, foundation, security, fencing, landscape plantings, and irrigation systems necessary for the utilization of an enclosed structure.
  (11) Existing structure--Any enclosed structure that began development prior to September 1, 1993.
  (12) Permitted development--An enclosed structure or group of enclosed structures that have been issued a development permit.
  (13) Post-closure care--The period of time beginning with the professional engineer certification of completing final closure activities as accepted by the executive director in accordance with §§330.453(f), 330.455(c), or 330.457(f)(5) of this title (relating to Closure and Post-Closure) and ending with the professional engineer certification of completion of post-closure care maintenance as accepted by the executive director in accordance with §330.463 of this title (relating to Post-Closure Care Requirements). Monitoring and maintenance activities are required during the post-closure care period in accordance with §330.463 of this title.
  (14) Post-closure care landfills--A municipal solid waste landfill facility that has received a municipal solid waste permit under §330.7 of this title (relating to Permit Required) and is currently in the post-closure care period as defined in this section.
  (15) Registration--A document issued by the executive director regarding submitted information for an existing enclosed structure built over a closed municipal solid waste landfill unit that does not require a development permit.
  (16) Site operating plan--A prepared document that provides guidance for operations and procedures necessary to maintain human safety and environmental protection at the development, permitted development, or existing structure in a manner consistent with the development permit and the commission's regulations.
  (17) Structures gas monitoring plan--A document prepared by a licensed professional engineer that provides procedures to ensure the detection of landfill gases and the prevention of migration of landfill gases into enclosed structures.

Source Note: The provisions of this §330.951 adopted to be effective May 17, 1995, 20 TexReg 3241; amended to be effective March 27, 2006, 31 TexReg 2502