| (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... |
