<<Prev Rule

Texas Administrative Code

Next Rule>>
RULE §312.8General Definitions

  (40) Floodway--A channel of a river or watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the surface elevation more than one foot.

  (41) Food crops--Crops consumed by humans. These include, but are not limited to, fruits, vegetables, and tobacco.

  (42) Forest--Land densely vegetated with trees and/or underbrush.

  (43) Grease trap waste--Material collected in and from a grease interceptor in the sanitary sewer service line of a commercial, institutional, or industrial food service or processing establishment, including the solids resulting from dewatering processes.

  (44) Grit trap--A unit/chamber that allows for the sedimentation of solids from an influent liquid stream by reducing the flow velocity of the influent liquid stream. In a grit trap, the inlet and the outlet are both located at the same vertical level, at, or very near, the top of the unit/chamber; the outlet of the grit trap is connected to a sanitary sewer system. A grit trap is not designed to separate oil and water.

  (45) Grit trap waste--Waste collected in a grit trap. Grit trap waste includes waste from grit traps placed in the drains prior to entering the sewer system at maintenance and repair shops, automobile service stations, car washes, laundries, and other similar establishments. The term does not include material collected in an oil/water separator or in any other similar waste management unit designed to collect oil.

  (46) Groundwater--Water below the land surface in the saturated zone.

  (47) Harvesting--Removal of a food, fiber, feed or turf crop from a land application unit by the means of cutting, picking, drying, baling, or gathering. The act of cutting and leaving vegetative material on the land application unit is not considered harvesting.

  (48) Holocene time--The most recent epoch of the Quaternary period, extending from the end of the Pleistocene Epoch to the present. Holocene time began approximately 10,000 years ago.

  (49) Incinerator--An apparatus for burning sewage sludge or biosolids at high temperatures until it is reduced to ash.

  (50) Incorporation--Mixing the applied material evenly through the top three inches of soil.

  (51) Industrial wastewater--Wastewater generated in a commercial or industrial process.

  (52) Institution--An established organization or corporation, especially of a public nature or where the public has access, such as child care facilities, public buildings, or health care facilities.

  (53) Irrigation conveyance canal--A canal that is constructed to convey water from the source of supply to one or more farms.

  (54) Lagoon--A surface impoundment that is authorized under a permit issued by the commission for the storage of sewage sludge or biosolids. Any other type of impoundment must be considered an active disposal unit.

  (55) Land application or land apply or land applied--The spraying or spreading of biosolids, domestic septage, or water treatment residuals onto the land surface; the injection of biosolids, domestic septage, or water treatment residuals below the land surface; or the incorporation of biosolids, domestic septage, or water treatment residuals into the soil to either condition the soil or fertilize crops or vegetation grown in the soil.

  (56) Land application unit--An area where materials are applied onto or incorporated into the soil surface for beneficial use or for treatment and disposal, where the disposal occurs within five feet of the surface of the land. The term does not include manure spreading operations.

  (57) Land with a high potential for public exposure--Land that the public uses frequently and/or is not provided with a means of restricting public access.

  (58) Land with a low potential for public exposure--Land that the public uses infrequently and/or is provided with a means of restricting public access.

  (59) Leachate collection system--A system or device installed immediately above a liner that is designed, constructed, maintained, and operated to collect and remove leachate from a disposal unit.

  (60) Licensed professional geoscientist--A geoscientist who maintains a current license through the Texas Board of Professional Geoscientists in accordance with its requirements for professional practice.

  (61) Liner--Soil or synthetic material that has a hydraulic conductivity of 1 x 10-7 centimeters per second or less. Soil liners must be of suitable material with more than 30% passing a number 200 sieve, have a liquid limit greater than 30%, a plasticity index greater than 15, compaction of greater than 95% Standard Proctor at optimum moisture content, and will be at least two feet thick placed in six-inch lifts. Synthetic liners must be a membrane with a minimum thickness of 20 mils and include an underdrain leak detection system.

  (62) Lower explosive limit for methane gas--The lowest percentage of methane in air, by volume, that propagates a flame at 25 degrees Celsius and atmospheric pressure.

  (63) Major sole-source impairment zone--A watershed that contains a reservoir that is used by a municipality as a sole source of drinking water supply for a population of more than 140,000, inside and outside of its municipal boundaries; and into which at least half of the water flowing is from a source that, on September 1, 2001, is on the list of impaired state waters adopted by the commission as required by 33 United States Code, §1313(d), as amended, at least in part because of concerns regarding pathogens and phosphorus, and for which the commission at some time prepared and submitted a total maximum daily load standard.

  (64) Metal limit--A numerical value that describes the amount of a metal allowed per unit amount of sewage sludge, biosolids, or water treatment residuals (e.g., milligrams per kilogram of total solids); the amount of a metal that can be applied to or disposed onto a land application unit (e.g., kilograms per hectare); or the volume of a material that can be applied to a land application unit (e.g., gallons per acre).

  (65) Monofill--A landfill or landfill trench in which sewage sludge, biosolids, or water treatment residuals are the only type of solid waste placed.

  (66) Municipality--A city, town, county, district, association, or other public body (including an intermunicipal agency of two or more of the foregoing entities) created by or under state law; an Indian tribe or an authorized Indian tribal organization having jurisdiction over sewage sludge or biosolids management; or a designated and approved management agency under federal Clean Water Act, §208, as amended. The definition includes a special district created under state law, such as a water district, sewer district, sanitary district, or an integrated waste management facility as defined in federal Clean Water Act, §201(e), as amended, that has as one of its principal responsibilities the treatment, transport, use, or disposal of sewage sludge or biosolids.

  (67) Off-site--Property that cannot be characterized as "on-site."

  (68) On-site--The same or contiguous property owned, controlled, or supervised by the same person. If the property is divided by public or private right-of-way, the access must be by crossing the right-of-way or the right-of-way must be under the control of the person.

  (69) Operator--The person responsible for the overall operation of a facility, land application unit, or surface disposal site.

  (70) Other container--Either an open or closed receptacle, including, but not limited to, a bucket, box, or a vehicle or trailer with a load capacity of one metric ton (2,200 pounds) or less.

  (71) Owner--The person who owns a facility or part of a facility.

  (72) Pasture--Land that animals feed directly on for feed crops such as legumes, grasses, grain stubble, forbs, or stover.

  (73) Pathogenic organisms--Disease-causing organisms including, but not limited to, certain bacteria, protozoa, viruses, and viable helminth ova.

  (74) Person who prepares sewage sludge or biosolids--Either the person who generates sewage sludge or biosolids during the treatment of domestic sewage in a treatment works or the person who derives a material from sewage sludge or biosolids.

  (75) Place or placed sewage sludge or biosolids--Disposal of sewage sludge or biosolids on a surface disposal site.

  (76) Pollutant--An organic or inorganic substance, or a pathogenic organism that, after discharge and upon exposure, ingestion, inhalation, or assimilation into an organism either directly from the environment or indirectly by ingestion through the food chain, could, on the basis of information available to the executive director, cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions (including malfunction in reproduction), or physical deformations in either Cont'd...

Next Page Previous Page

Link to Texas Secretary of State Home Page | link to Texas Register home page | link to Texas Administrative Code home page | link to Open Meetings home page