Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 309 - DOMESTIC WASTEWATER EFFLUENT LIMITATION AND PLANT SITING › Subchapter B - LOCATION STANDARDS › Section 309.11 - Definitions

Current through Reg. 49, No. 28; July 12, 2024
The following words and terms, when used in this subchapter
					 , shall have the following meanings, unless the context clearly indicates
					 otherwise.
(1) Active geologic
				  processes--Any natural process which alters the surface and/or subsurface of
				  the earth, including, but not limited to, erosion (including shoreline erosion
				  along the coast), submergence, subsidence, faulting, karst formation, flooding
				  in alluvial flood wash zones, meandering river bank cutting, and
				  earthquakes.
(2) Aquifer--A
				  geologic formation, group of formations, or part of a formation capable of
				  yielding a significant amount of groundwater to wells or springs. Portions of
				  formations, such as clay beds, which are not capable of yielding a significant
				  amount of groundwater to wells or springs are not aquifers.
(3) Erosion--The group of natural processes,
				  including weathering, deterioration, detachment, dissolution, abrasion,
				  corrosion, wearing away, and transportation, by which earthen or rock material
				  is removed from any part of the earth's surface.
(4) Existing facility--Any facility used for
				  the storage, processing, or application of domestic wastewater and which has
				  obtained approval of construction plans and specifications as of March 1,
				  1990.
(5) New facility--Any
				  domestic wastewater treatment facility which is not an existing
				  facility.
(6) Nuisance odor
				  prevention--The reduction, treatment, and dispersal of potential odor
				  conditions that interfere with another's use and enjoyment of property that are
				  caused by or generated from a wastewater treatment plant unit, which conditions
				  cannot be prevented by normal operation and maintenance procedures of the
				  wastewater treatment unit.
(7) One
				  hundred-year flood plain--Any land area which is subject to a 1.0% or greater
				  chance of flooding in any given year from any source.
(8) Substantial change in the function or
				  use--An increase in the pollutant load or modification in the existing purpose
				  of the unit.
(9) Wastewater
				  treatment plant unit--Any apparatus necessary for the purpose of providing
				  treatment of wastewater (i.e., aeration basins, splitter boxes, bar screens,
				  sludge drying beds, clarifiers, overland flow sites, treatment ponds or basins
				  that contain wastewater, etc.). For purposes of compliance with the
				  requirements of §
										309.13(e)
				  of this title (relating to Unsuitable Site Characteristics), this definition
				  does not include off-site bar screens, off-site lift stations, flow metering
				  equipment, or post-aeration structures needed to meet permitted effluent
				  minimum dissolved oxygen limitations.
(10) Wetlands--Those areas that are inundated
				  or saturated by surface water or groundwater at a frequency and duration
				  sufficient to support, and that under normal circumstances do support, a
				  prevalence of vegetation typically adapted for life in saturated soil
				  conditions. Wetlands generally include swamps, marshes, bogs, playa lakes, and
				  similar areas.