27 CA ADC § 20164
27 CCR s 20164
Cal. Admin. Code tit. 27, s 20164
CALIFORNIA CODE OF REGULATIONS
TITLE 27. ENVIRONMENTAL PROTECTION
DIVISION 2. SOLID WASTE
SUBDIVISION 1. CONSOLIDATED REGULATIONS FOR TREATMENT, STORAGE, PROCESSING
OR DISPOSAL OF SOLID WASTE
CHAPTER 2. DEFINITIONS
ARTICLE 2. SPECIFIC DEFINITIONS
This database is current through 04/21/06, Register 2006, No. 16.
s 20164. Combined CIWMB & SWRCB Technical Definitions. [CIWMB
T14:s17225.1- 17225.74, s17258.2, 17761,18200.1, 18251, 18011, 18231,
18281 // SWRCB C15: s2601]
[Note: This section contains the SWRCB's and the CIWMB's technical
definitions, combined and listed in alphabetical order. Each agency is
responsible for adopting its own definitions within this combined listing.
Unless otherwise stated in a given regulation, it is the intent of the
SWRCB and CIWMB that each agency's definitions function for the other
agency (e.g., when the CIWMB uses a term adopted by the SWRCB, or vice
versa, the term has the same meaning as defined by the agency that adopted
the term).]
"Abandoned site" (CIWMB) means a site where there is no responsible party.
"Abandoned Vehicles" (CIWMB) includes vehicles, with or without motor
power, including cars, trucks, trailers, mobile homes, buses, etc., left
on public or private property for an extended period of time and usually
in an inoperable or hazardous condition.
"Acceptance for filing" (CIWMB) means the enforcement agency has
determined that the application package is complete and correct and the
specified permit action time frames contained in Chapter 4 of this
subdivision commence.
"Active" (CIWMB) for CIWMB promulgated sections means the period when
waste is being accepted for disposal at a disposal site.
"Active Face" (CIWMB) means the working surface of a landfill upon which
solid wastes are deposited during the landfill operation, prior to the
placement of cover material.
"Active life" or "operating life" (SWRCB) means the period during which
wastes are being discharged to a waste management unit. The active life
continues until final closure of the waste management unit has been
initiated pursuant to this subdivision. For surface impoundments, the
active life includes any time when the impoundment contains liquid,
including waste and leachate.
"Affected medium" (SWRCB) means any natural medium that consists of or
contains waters of the state (e.g., ground water, surface water, or the
unsaturated zone) that has been affected by a release from a waste
management unit.
"Agricultural Solid Wastes" (CIWMB) include wastes resulting from the
production and processing of farm or agricultural products, including
manures, prunings and crop residues wherever produced.
"Airport" (CIWMB) means public-use airport open to the public without
prior permission and without restrictions within the physical capacities
of available facilities.
"Alternative Daily Cover" (CIWMB) see "cover material".
"Annular Seal" (CIWMB) the seal placed in the space between the casing in
a well and the wall of the hole, or between two concentric strings of
casing, or between casing and tubing.
"Approval Agency" (CIWMB) includes any agency with regulatory powers
regarding solid waste generation, collection, transportation, processing
or disposal and includes, but is not limited to the CIWMB, the Department
of Toxic Substances Control, California Regional Water Quality Control
Boards, local air districts, local enforcement agencies, local health
entities and local land use authorities.
"Approved closure plan" (SWRCB) means the portion of a waste management
unit's (Unit's) final closure and post-closure maintenance plan that
describes all actions necessary to prepare the Unit for post-closure
maintenance, and that has been approved by the RWQCB and by any other
state and local agencies having purview over that plan.
"Aquifer" (SWRCB) means a geologic formation, group of formations, or part
of a formation capable of yielding a significant amount of ground water to
wells or springs.
"Attitude" (SWRCB) means either the orientation in space of a geologic
structural feature or the structural element position of a geologic bed,
stratum, fracture, or surface relative to the horizontal.
"Background" (SWRCB) means the concentrations or measures of constituents
or indicator parameters in water or soil that has not been affected by
waste constituents or leachate from the waste management unit being
monitored.
"Background Monitoring Point" (SWRCB) (as capitalized) means a well,
device, or location specified in the waste discharge requirements at which
monitoring for background water quality or background soil quality is
conducted.
"Background plot" (SWRCB) means an area adjacent to a land treatment unit
that can reasonably be expected to have the same, or similar soil
conditions as were present at the land treatment unit prior to discharges
of waste.
"Baling" (CIWMB) includes the process of compressing and binding solid
wastes.
"Bench" (CIWMB) means a terrace or comparatively level platform breaking
the continuity of a slope.
"Best management practice(s)" (SWRCB) means a practice, or combination of
practices, that is the most effective and feasible means of controlling
pollution generated by nonpoint sources for the attainment of water
quality objectives.
"Bird hazard" (CIWMB) means an increase in the likelihood of bird/aircraft
collisions that may cause damage to the aircraft or injury to its
occupants.
"Bulky Waste" (CIWMB) includes large items of solid waste such as
appliances, furniture, large auto parts, trees, branches, stumps and other
oversize wastes whose large size precludes or complicates their handling
by normal collection, processing or disposal methods.
"CAI Units" (SWRCB) means waste management units that were closed,
abandoned, or inactive prior to November 27, 1984.
"Capillary force(s)" (SWRCB) means the adhesive force between liquids and
solids which, in the case of ground water hydrology, causes soil-pore
liquid to move in response to differences in matric potential. This effect
causes ground water to rise from a saturated zone into the unsaturated
zone, thereby creating a capillary fringe.
"Cell" (CIWMB) means that portion of compacted solid wastes in a landfill
that is enclosed by natural soil or cover material during a designated
period.
"Certified Engineering Geologists" (CIWMB) means a registered geologist,
certified by the State of California, pursuant to section 7842 of the
Business and Professions Code.
"CIWMB" (CIWMB) means the California Integrated Waste Management Board,
which is the lead agency for implementing the State municipal solid waste
permit program that is deemed to be adequate by US EPA under regulations
published pursuant to sections 2002 and 4005 of RCRA.
"Classified waste management unit" or "classified Unit" (SWRCB) means a
waste management unit (as defined in this section) that has been
classified by a Regional Water Quality Control Board according to the
provisions of Article 3 Subchapter 2, Chapter 3 of this division (s20240
et seq.).
"Classified Unit" - see " 'classified waste management unit' or
'classified Unit' "
"CLGB" - see "concentration limit"
"Closed Site" (CIWMB) means a disposal site that has ceased accepting
waste and was closed in accordance with applicable statutes, regulations,
and local ordinances in effect at the time.
"Closure" (SWRCB) means the process during which a waste management unit
(Unit), or portion thereof, that is no longer receiving waste, is
undergoing all operations necessary to prepare the Unit (or portion
thereof, as appropriate) for post-closure maintenance in accordance with
an approved plan for closure, or partial final closure as appropriate.
"Closure Plan" (CIWMB) as used in this division refers to preliminary,
final, and/or partial final closure plans as appropriate.
"COC" or "COCs" - see "Constituents Of Concern"
"Coefficient of variation" (SWRCB) means the standard deviation divided by
the mean. It is a statistical measure of the dispersion of individual
samples relative to the mean value of the samples.
"Collection" (CIWMB) means the act of collecting solid waste at the place
of waste generation by an approved collection agent (public or private)
and is distinguished from "removal."
"Collection Vehicle or Equipment" (CIWMB) includes any vehicle or
equipment used in the collection of residential refuse or commercial solid
wastes.
"Commercial Solid Wastes" (CIWMB) include all types of solid wastes
generated by stores, offices and other commercial sources, excluding
residences, and excluding industrial wastes.
"Concentration limit" (SWRCB) means the value for a constituent specified
in the water quality protection standard under s20390 and s20400,
including but not limited to values for concentration, temperature, pH,
conductivity, and resistivity. The term can apply to a concentration that
exceeds the constituent's background concentration [i.e., a "concentration
limit greater than background (CLGB)" as described under s20400].
"Concentration limit greater than background (CLGB)" - see "concentration
limit"
"Confined animal facility" (SWRCB) means any place where cattle, calves,
sheep, swine, horses, mules, goats, fowl, or other domestic animals are
corralled, penned, tethered, or otherwise enclosed or held and where
feeding is by means other than grazing.
"Constituent" (SWRCB) means an element or compound which occurs in or is
likely to be derived from waste discharged to the waste management unit.
"Constituent(s) of concern" or "COC(s)" (SWRCB) means any waste
constituent(s), reaction product(s), and hazardous constituent(s) that is
reasonably expected to be in or derived from waste contained in a waste
management unit.
"Construction and Demolition Wastes" (CIWMB) include the waste building
materials, packaging and rubble resulting from construction, remodeling,
repair and demolition operations on pavements, houses, commercial
buildings and other structures.
"Construction quality assurance" or "CQA" (SWRCB) means a planned system
of activities that provides assurance that the facility, or component
thereof, is constructed as specified in the approved design. As used in
these regulations, the term includes "Construction quality control" or
"CQC", a planned system of inspections that is used to directly monitor
and control the quality of a construction project.
"Containment" (SWRCB) means the use of waste management unit
characteristics or installed systems and structures to prevent or restrict
the release of waste constituents, including waste constituents mobilized
as a component of leachate or of landfill gas.
"Containment feature" (SWRCB) means any feature, whether natural or
artificial, used to contain waste constituents, including waste
constituents mobilized as a component of leachate or of landfill gas.
"Containment structure" (SWRCB) means an artificial feature designed and
installed to contain waste constituents, including waste constituents
mobilized as a component of leachate or of landfill gas.
"Contaminated materials" (SWRCB) means materials that contain waste
constituents or leachate.
"Control chart" (SWRCB) means a graphical method for evaluating whether a
process is or is not in a state of statistical control.
"Coverage" (SWRCB), when applied to financial assurance, means the amount
of funds the discharger must make available for a known eventuality (e.g.,
closure) or potential eventuality (e.g., corrective action).
"Cover Material" (CIWMB) means soils/earthen materials or alternative
materials used in covering compacted solid wastes in a disposal site.
Cover material may serve as daily, intermediate or final cover.
"Alternative Daily Cover" means cover material other than at least six
inches of earthen material, placed on the surface of the active face at
the end of each operating day to control vectors, fires, odors, blowing
litter, and scavenging. "Daily Cover Material" includes that cover
material placed on the entire surface of the active face at least at the
end of each operating day in order to control vectors, fire, odors,
blowing litter and scavenging. "Final Cover Material" means cover material
that represents the permanently exposed final surface of a fill.
"Intermediate Cover Material" means cover material placed on all fill
surfaces where additional cells are not to be constructed for 180 days or
more to control vectors, fires, odors, blowing litter, scavenging, and
drainage. Intermediate cover does not include final cover as defined in
this section.
"CQA" - see "construction quality assurance"
"CQC" - refer to "construction quality assurance"
"Critical Slope" (SWRCB) means a potential slip surface or slope on a site
that has the lowest factor of safety.
"Cross-contamination" (SWRCB) means a condition created when a drill hole,
boring, or improperly-constructed well forms a pathway for fluid movement
between a saturated zone which contains pollutants and a formerly
separated saturated zone containing uncontaminated ground water.
"Cutoff wall" (SWRCB) means a subsurface barrier to lateral fluid movement
which extends from in-place natural geologic materials (which have the
required hydraulic conductivity) to ground surface.
"Day" (CIWMB) means calendar day unless otherwise specified.
"Dead Animals" (CIWMB) include those animals whose carcasses or parts
thereof require disposal.
"Decomposable waste" (SWRCB) means waste which, under suitable natural
conditions, can be transformed through biological and chemical processes
into compounds which do not impair the quality of waters of the state.
Nevertheless, incomplete decomposition may result in some water quality
degradation (e.g., hardness, taste, odor, etc.).
"Decomposition Gases" (CIWMB) include gases produced by chemical or
microbial activity during the decomposition of solid waste.
"Dedicated" (SWRCB), when applied to a waste management unit (Unit), means
the Unit is used exclusively for discharges of particular wastes.
"Dendritic" (SWRCB) when applied to a waste management unit's subdrain
system, means that this system is arranged in a branching pattern.
"Designated waste" (SWRCB) has the same meaning as under California Water
Code s13173.
"Dewatered sludge" (SWRCB) means residual semi-solid waste from which free
liquid has been evaporated or otherwise removed.
"Discharger" (SWRCB) means any person who discharges waste which could
affect the quality of waters of the state, and includes any person who
owns a waste management unit (Unit) or who is responsible for the
operation of a Unit. When referring to dischargers of hazardous waste, the
terms "discharge" and "waste" in this definition have the same meaning as
they would have under the definitions for these terms provided in section
66260.10 of Chapter 11 of Division 4.5 of Title 22, CCR, effective July 1,
1991.
"Discrete unit" (CIWMB) means any portion of the disposal area that can be
individually monitored.
"Disposal Area" (CIWMB) means that portion of a disposal site which has
received or is receiving solid wastes.
"Dump" (CIWMB) means a disposal site which has waste exposed to the
elements, vectors and scavengers.
"Dynamic Conditions" (CIWMB) means under transitory loading conditions,
such as during an earthquake.
"EA" (CIWMB) means enforcement agency as defined in PRC s40130.
"Earthquake Magnitude" (CIWMB) means the Richter scale of earthquake
magnitude used to express the total energy of an earthquake.
"Electrical conductivity" (SWRCB) means the relative ability of water to
conduct electrical current. It depends on the ion concentration of and can
be used to approximate the total filterable residue (total dissolved
solids) in the water.
"Environmental Control System" (CIWMB) means a system to prevent the
release of waste constituents from the containment structures of sites.
Environmental control system for the purpose of this definition does not
include systems which primary function is to protect water quality.
"Excess exposure" (SWRCB) means that, for an organism exposed to a release
from a waste management unit, the combined effect of all hazardous
constituents in the organism's environment is such that the organism will
suffer some measurable adverse effect on health or reproductive success,
which effect is partly or wholly attributable to the release.
"Existing" (SWRCB), when describing a waste management unit (e.g.,
"existing surface impoundment", or "existing Unit"), means that the waste
management unit in question was operating, or had received all permits
necessary for construction and operation, on or before November 27, 1984,
pursuant to s20080(d).
"Existing Footprint" (SWRCB) (as capitalized) means the area of land, at
an MSW landfill, that is covered by waste as of the date that landfill
became subject to the federal regulations of 40 CFR Part 258, pursuant to
s258.1 of that part, as published in the Federal Register of October 1,
1993 (Volume 58, No. 189, pages 51546 and 51547). [Note: see also
definitions for "Federal Deadline" and "MSW landfill".]
"Existing MSWLF unit" (CIWMB) (CIWMB usage) means any municipal solid
waste landfill unit that is receiving solid waste as of the appropriate
dates specified in Section 20060. Waste placement in existing units must
be consistent with past operating practices or modified practices to
ensure good management.
"External hydrogeologic forces" (SWRCB) means seasonal and other
fluctuations in ground water levels, and any other hydraulic condition
which could cause a change in the hydraulic stress on a containment
structure.
"Facility" - see "waste management facility"
"Facility Boundary" (CIWMB) means the boundary surrounding the entire area
on which solid waste facility activities occur and are permitted.
"Facility wastewater" (SWRCB) means all wastewater, from whatever source,
produced at a confined animal facility.
"Factor of safety" (SWRCB) means the ratio of forces resisting slope or
foundation failure over forces driving slope or foundation failure.
"Federal Deadline" (SWRCB) applies only to an MSW landfill, and means the
compliance date applicable to that landfill or portion thereof pursuant to
s258.1(e) of the federal MSW regulations (40CFR258), as revised in the
Federal Register of October 1, 1993 (Volume 58, No. 189, pages 51546 and
51547). The term does not mean the date an MSW landfill must begin
monitoring, in that all waste management units subject to these
regulations have been required to monitor since the November 27, 1984
version of these regulations (see s20380 et seq.).
"Fill" (CIWMB) includes compacted solid waste and cover material.
"Flexible membrane liner (FML)" - see "geosynthetic(s)"
"Floodplain" (SWRCB) means the land area which is subject to flooding in
any year from any source.
"FML" - see "geosynthetic(s)"
"Foundation Failure" (CIWMB) means the failure of a foundation, soil or
rock that serves to support an imposed load, along a surface of weakness.
"Freeboard" (SWRCB) means the vertical distance between the lowest point
along the top of a surface impoundment dike, berm, levee, or other similar
feature and the surface of the liquid contained therein.
"Free liquid" (SWRCB) means liquid which readily separates from the solid
portions of waste under ambient temperature and pressure. Free liquids are
not present when a 100 milliliter representative sample of the waste can
be completely retained in a standard 400 micron conical paint filter for 5
minutes without loss of any portion of the waste from the bottom of the
filter (or an equivalent test approved by the Department of Toxic
Substances Control).
"Garbage" (CIWMB) includes all kitchen and table food waste, and animal or
vegetable waste that attends or results from the storage, preparation,
cooking or handling of food stuffs.
"Geologic materials" (SWRCB) means in-place naturally occurring surface
and subsurface rock and soil.
"Geologist" (CIWMB) means a person who is engaged in professional
geological work under the supervision of registered geologist or
registered civil engineer, who is in responsible charge of the work,
pursuant to section 7805 of the Business and Professions Code.
"Geomembrane" - see "geosynthetic(s)"
"Geosynthetic(s)" (SWRCB) (n)means flexible materials in planar form
manufactured to meet specific engineering purposes. The term includes, but
is not limited to: "geomembrane", an essentially impermeable membrane used
as a barrier to waste solids and fluids, and synonymous with "synthetic
liner" and "flexible membrane liner (FML)"; "geocomposite liner (GCL)," a
manufactured material using geotextiles, geogrids, geonets, and/or
geomembranes in laminated or composite form; "geotextile" (including
"geonet"), any permeable textile used with foundation, soil, rock, earth,
or any other geotechnical engineering-related material as an integral part
of a constructed project, structure, or system.
"Ground acceleration" (SWRCB) means acceleration of earth particles caused
by an earthquake.
"Ground rupture" (SWRCB) means disruption of the ground surface due to
natural or man-made forces (e.g., faulting, landslides, subsidence).
"Ground water" (SWRCB) for the purpose of the SWRCB-promulgated
requirements of this subtitle, means water below the land surface that is
at or above atmospheric pressure.
"Grout curtain" (SWRCB) means a subsurface barrier to fluid movement,
installed by injecting grout mixtures (such as cement, silicates,
synthetic resins, etc.) to fill and seal fractures in rock.
"Hazardous constituent" (SWRCB) means a constituent identified in Appendix
VIII to Chapter 11 of Division 4.5 of Title 22, CCR, or an element,
chemical compound, or mixture of compounds which is a component of a waste
or leachate and which has a physical or chemical property that causes the
waste or leachate to be identified as a hazardous waste by the California
Department of Toxic Substances Control.
"Hazardous waste" (SWRCB) means any waste which, under Article 1, Chapter
11, Division 4.5 (s66261.3 et seq.) of Title 22 of this code, is required
to be managed according to Division 4.5 of Title 22 of this code.
"Head" or "hydraulic head" (SWRCB) means the pressure exerted by fluid on
a given area. It is caused by the height of the fluid surface above the
area.
"Holding facilities" (CIWMB) means sedimentation basins/ponds designed to
control suspended solids entrained in surface run-off, prior to discharge.
"Holocene fault" (SWRCB) means a fault which is or has been active during
the last 11,000 years.
"Household waste" (CIWMB) means any solid waste (including garbage, trash,
and sanitary waste in septic tanks) derived from households (including
single and multiple residences, hotels and motels, bunkhouses, ranger
stations, crew quarters, campgrounds, picnic grounds, and day-use
recreation areas).
"Hydraulic conductivity" (SWRCB) means the ability of natural and
artificial materials to transmit fluid. For water, including aqueous
solutions, the term is expressed as a measure of the rate of flow (e.g.,
cubic centimeters per second) one can expect through a unit-area (e.g.,
one square centimeter) cross section of the material when the hydraulic
gradient is unity (e.g., one centimeter of head loss per centimeter of
travel through the material). The resulting numerical value is expressed
in velocity units (e.g., centimeters per second).
"Illegal Site" (CIWMB) means a disposal site that is not permitted and not
exempt from obtaining a permit and is not closed or excluded from the
requirement to obtain a SWFP.
"Inactive" (SWRCB) means a temporary status of a waste management unit
(Unit), following the initial receipt of waste, in which the Unit is no
longer receiving waste.
"Inactive mining waste management unit" (SWRCB) means any area containing
mining wastes which is located at a present or former mining or milling
site, and where all mining operations and discharges of mining waste ended
and have not been resumed for 5 years, or more.
"Inactive Site" (CIWMB) means a site that is temporarily idle for a
specific period due to known circumstances and not part of the normal
operation pattern contained in the solid waste facility permit.
"Incinerator" (CIWMB) includes any equipment used for the volume reduction
or destruction of combustible wastes by burning, from which the exhaust
gases pass through a flue.
"Incinerator Residue" (CIWMB) includes the solid materials remaining after
reduction in an incinerator.
"Independent sample" (SWRCB) means an individual sample of a monitored
medium, obtained from a given Monitoring Point, that:
(1) does not contain a parcel of the medium that has been previously
sampled at that Monitoring Point sufficient to cause a measurable effect
in the analytical results; and
(2) has not been otherwise affected differently than any other individual
sample or group of samples with which it will be compared.
In applying No. 1, above, to ground water monitoring, the parcel of water
of interest is the parcel of water that was in the well bore at the time
of any previous sampling event.
"Indicator parameters" (SWRCB) means measurable physical or chemical
characteristics of water or soil-pore moisture which are used to detect
the presence of waste constituents in water or soil-pore moisture, or the
effects of waste constituents on waters of the state.
"Industrial Wastes" (CIWMB) include all types of solid wastes and
semi-solid wastes which result from industrial processes and manufacturing
operations.
"Inert waste" (SWRCB) means the same as under s20230(a).
"Interim cover" (SWRCB) means the same as under s20705(a).
"Intermediate cover" (SWRCB), when used in an SWRCB-promulgated
requirement applicable to a waste pile waste management unit, has a
meaning identical to the CIWMB's definition of the term as it applies to
landfills (under the definition for "cover material" in this section).
"Iso-settlement map" (SWRCB) means a contour map showing lines of equal
settlement of a landfill over a period of time.
"Land application unit" (CIWMB) means an area where wastes are applied
onto or incorporated into the soil surface (excluding manure spreading
operations) for agricultural purposes or for treatment and disposal.
"Landfill" (SWRCB) means a waste management unit at which waste is
discharged in or on land for disposal. It does not include surface
impoundment, waste pile, land treatment unit, injection well, or soil
amendments. [Note: see also the definition of "waste management unit" and
ss 20090(c&f).]
"Landfill gas condensate" (SWRCB) means liquids which are removed from a
gas control system at a landfill and which are produced by the
condensation of landfill gas being conveyed by that system. The term
ceases to apply to such liquid upon its being treated to the extent that
it no longer contains any constituent of concern whose concentration
exceeds the water quality objectives of ground water in the uppermost
aquifer underlying the waste management unit. [Note: see also s20200(d).]
"Land treatment unit" (SWRCB) means a waste management unit (Unit) at
which liquid and solid waste is discharged to, or incorporated into, soil
for degradation, transformation, or immobilization within the treatment
zone. Such Units are disposal Units if the waste will remain after
closure. [Note: see also the definition of "waste management unit" and
s20090(f).]
"Lateral expansion" (CIWMB) means a horizontal expansion beyond the
disposal area boundary.
"Lateral expansion (beyond Existing Footprint)" (SWRCB) applies only to an
existing MSW landfill that is subject to the federal regulations under 40
CFR 258, and means any portion of the landfill whichin map view -is
contiguous with the landfill's Existing Footprint (as defined in this
section) and which receives waste after the landfill's Federal Deadline
(as defined in this section).
"Lateral expansion (of RWQCB-Permitted Area)" (SWRCB), for any new or
existing waste management unit (Unit), means any increase -in map view -of
the Unit's RWQCB-Permitted Area (as defined in this section)
"LCRS" - see "leachate collection and removal system"
"Leachate" (SWRCB) means any liquid formed by the drainage of liquids from
waste or by the percolation or flow of liquid through waste. It includes
any constituents extracted from the waste and dissolved or suspended in
the fluid. The term ceases to apply to such liquid upon its being mingled
with ground water outside the Unit's liner system. The term also ceases to
apply to such liquid upon its being treated to the extent that it no
longer contains any constituent of concern whose concentration exceeds the
water quality objectives of ground water in the uppermost aquifer
underlying the waste management unit.
"Leachate collection and removal system" or "LCRS" (SWRCB) means that
portion of a waste management unit's containment system that is designed
and constructed (pursuant to s20340) to collect all leachate that reaches
it, and to convey such leachate to a designated collection area to
minimize the buildup of leachate head on any underlying liner. The term
does not include systems that are designed to collect ground water outside
the Unit's liner, if any, including ground water that has been polluted by
leachate.
"Liner" (SWRCB) means a continuous layer of natural or artificial
material, or a continuous membrane of flexible artificial material, or a
continuous composite layer consisting of a membrane of flexible artificial
material directly overlying a layer of engineered natural material, which
is installed beneath or on the sides of a waste management unit (Unit),
and which acts as a barrier to both vertical or lateral fluid movement.
"Liner system" (SWRCB) means the entire sequence of individual liners,
composite liners, and leachate collection system(s) which prevent or
minimize releases from the waste management unit.
"Liquefaction" (SWRCB) means the process resulting from seismic or other
shaking whereby solid granular material takes on the flowing
characteristics of a liquid.
"Liquid waste" (SWRCB) means any waste materials which are not spadable.
"Litter" (CIWMB) means all solid waste which has been improperly discarded
at any location or which has migrated by wind or equipment away from the
unloading area of a solid waste facility, disposal site or operation.
Litter includes, but is not limited to, convenience food, beverage, and
other product packages or containers constructed of steel, aluminum,
glass, paper, plastic, and other natural and synthetic materials, thrown
or deposited on the lands and waters of the state, but not including the
properly discarded waste of the primary processing of agriculture, mining,
logging, sawmilling, or manufacturing.
"Local Air District" (CIWMB) means the local Air Quality Management
District (AQMD) or the local Air Pollution Control District (APCD).
"Local Government" (CIWMB) is a local public entity which is a county,
city, district, or any other special political subdivision, but is not the
State.
"Manure" (SWRCB) means the accumulated moist animal excrement that does
not undergo decomposition or drying as would occur on open grazing land or
natural habitat. This definition shall include feces and urine which may
be mixed with bedding materials, spilled feed, or soil.
"Maximum credible earthquake" (SWRCB), or "MCE" (SWRCB), means the maximum
earthquake that appears capable of occurring under the presently known
geologic framework. In determining the maximum credible earthquake, little
regard is given to its probability of occurrence except that its
likelihood of occurring is great enough to be of concern. The term
describes an event that could be approached more frequently in one
geologic environment than in another; therefore, the following factors
have a bearing upon the derivation of the MCE for any given facility:
(a) the seismic history of the vicinity and of the geologic province;
(b) the length of the significant fault or faults which can affect the
site within a radius of 62 miles (100 kilometers) of the facility
boundary;
(c) the type(s) of faults involved;
(d) the tectonic and/or structural history; and
(e) the tectonic and/or structural pattern or regional setting (geologic
framework); nevertheless
(f) the time factor shall not be a parameter.
"Maximum probable earthquake", or "MPE" (SWRCB), means the maximum
earthquake that is likely to occur during a 100-year interval. The term
describes a probable occurrence, rather than an assured event that will
occur at a specific time; therefore, the following factors have a bearing
upon the derivation of the MPE for a given facility:
(a) the regional seismicity, considering the known past seismic activity;
(b) the fault or faults within a 62 mile (100 kilometer) radius from the
facility boundary that may be active within the 100 years following first
acceptance of waste;
(c) the type(s) of faults considered;
(d) the seismic recurrence factor for the area described in ¶(b), above,
and for any faults (when known) within that area; and
(e) the mathematic probability analysis (or statistical analysis) of
seismic activity associated with the faults included in the area described
under ¶(b), above, including a graphical plot of recurrence information.
Nevertheless, the postulated magnitude of the MPE is superseded by any
more powerful seismic event that has occurred within historic time in the
area described under ¶(b), above.
"Measurably significant" (SWRCB) means a change in the Monitoring Point
data that, relative to the reference background value (or other approved
reference value or distribution), is sufficient to indicate that a release
has occurred, pursuant to the applicable data analysis method (including
its corresponding trigger).
"Medical Waste" (CIWMB) means waste regulated pursuant to the Medical
Waste Management Act, Part 14 (commencing with Section 117600) of Division
104 of the Health and Safety Code.
"Mining waste" (SWRCB) means all waste materials (solid, semi-solid, and
liquid) from the mining and processing of ores and minerals including
soil, waste rock, and other forms of overburden as well as tailings, slag,
and other processed mining wastes.
"Moisture-holding capacity" (SWRCB) means the amount of liquid which can
be held against gravity by waste materials without generating free liquid.
"Monitoring parameter" (SWRCB) means one of the set of parameters
specified in the waste discharge requirements for which monitoring is
conducted. Monitoring parameters include physical parameters, waste
constituents, reaction products, and hazardous constituents, that provide
a reliable indication of a release from a waste management unit.
"Monitoring Point" (SWRCB) (as capitalized) means a well, device, or
location specified in the waste discharge requirements at which monitoring
is conducted and at which the water quality protection standard, under
s20390, applies.
"Municipal solid waste," or "MSW" (SWRBC) has the same meaning as under 40
CFR, Part 258.
"MSW landfill" or "municipal solid waste landfill unit" (SWRCB) means any
landfill that is subject to the federal regulations of 40CFR258, including
any portion of a disposal site that is subject to those regulations. The
term includes any landfill, other than a Class I landfill, that received
municipal solid waste (MSW) at any time and that has received any solid
waste since October 9, 1991; therefore, the term does not include any
landfill that stopped receiving waste prior to that date.
"New Unit" (SWRCB), when applied to a waste management unit (Unit) or
portion thereof, means that the Unit (or portion thereof) began operating,
or had received all permits necessary for construction and operation,
after November 27, 1984, pursuant to s20080(d).
"New MSWLF unit" (CIWMB) means any municipal solid waste landfill unit
that has not received waste prior to the operative date of October 9,
1993, or prior to October 9, 1997 if the MSWLF unit meets the conditions
of 40 CFR 258.1(f)(1).
"Nonhazardous solid waste" (SWRCB) has the same meaning as under
s20220(a).
"Nuisance" (SWRCB) has the same meaning as under Water Code s13050(m).
"Nuisance" (CIWMB) for CIWMB-promulgated sections includes anything which
is injurious to human health or is indecent or offensive to the senses and
interferes with the comfortable enjoyment of life or property, and affects
at the same time an entire community, neighborhood, household or any
considerable number of persons although the extent of annoyance or damage
inflicted upon an individual may be unequal and which occurs as a result
of the storage, removal, transport, processing or disposal of solid waste.
"On-site" (CIWMB) means located within the permitted boundary.
"Open burning" (CIWMB) means the combustion of solid waste without:
(1) Control of combustion air to maintain adequate temperature for
efficient combustion,
(2) Containment of the combustion reaction in an enclosed device to
provide sufficient residence time and mixing for complete combustion, and
(3) Control of the emission of the combustion products.
"Operating" (CIWMB) means currently active or the period of site activity
from the first receipt of waste until the final receipt of waste
consistent with the normal pattern of operation in the solid waste
facility permit.
"Operating" (SWRCB) - see "active life"
"Operating Area" (CIWMB) means that portion of a solid waste facility
which is currently in use for the unloading, management or disposal of
wastes.
"Operating life" (SWRCB) - see "active life" (SWRCB)
"Operator" (CIWMB) means the landowner or other person who through a
lease, franchise agreement or other arrangement with the landowner becomes
legally responsible to the State for including, but not limited to, the
following requirements for a solid waste facility or disposal site:
(A) obtaining a solid waste facility permit;
(B) complying with all applicable federal, state and local requirements;
(C) the physical operation of the facility or site; and
(D) closing and maintaining the site during the postclosure maintenance
period.
"Overpulling" (CIWMB) means excessive air intrusion into a disposal site
during gas extraction to control the migration of landfill gas or to
increase the production of landfill gas in an energy production system or
flare.
"Partial Final Closure" (CIWMB) means the closure of discrete units of a
site consistent with the approved closure and postclosure maintenance
plan.
"Peak stream flow" (SWRCB) means the maximum expected flow of surface
water at a waste management facility from a tributary watershed for a
given recurrence interval.
"Peer-reviewed" (CIWMB) means published and independently reviewed by
other experts within the same academic field.
"Perched ground water" (SWRCB) means a body of unconfined ground water
separated from the zone of saturation by a portion of the unsaturated
zone. Such perched water can be either permanent or ephemeral.
"Permeability" (SWRCB) means the ability of natural and artificial
materials to transmit fluid.
"Physical parameter" (SWRCB) means any measurable physical characteristic
of a substance including, but not limited to, temperature, electrical
conductivity, pH, and specific gravity.
"Point of Compliance" (SWRCB) (as capitalized) means a vertical surface
located at the hydraulically downgradient limit of a waste management unit
(Unit) and that extends through the uppermost aquifer underlying the Unit.
"Post-closure maintenance" (SWRCB) means all activities undertaken at a
closed waste management unit to maintain the integrity of containment
features and to monitor compliance with applicable performance standards.
"Post-closure maintenance period" (SWRCB) means the period after closure
of a waste management unit (Unit) during which the waste in the Unit could
have an adverse effect on the quality of the waters of the state.
"Postclosure maintenance plan" (CIWMB) as used in this division refers to
preliminary, final, and/or partial final postclosure maintenance plans as
appropriate.
"Premises" (CIWMB) includes a tract or parcel of land with or without
habitable buildings or appurtenant structures.
"Principal Gases" (CIWMB) means the organic or inorganic constituents of
landfill gas, greater than one percent by volume, that typically include
carbon dioxide, methane, oxygen, and nitrogen.
"Private Access" (CIWMB) means that public access and disposal are not
allowed.
"Probable maximum precipitation" (SWRCB) means the estimated amount of
precipitation for a given duration, drainage area, and time of year, which
approaches and approximates the maximum that is physically possible within
the limits of contemporary hydrometeorological knowledge and techniques.
The term describes a precipitation event that has virtually no risk of
being exceeded.
"Professional Land Surveyor" (CIWMB) means a land surveyor licensed by the
State of California pursuant to section 8747 of the Business and
Professions Code.
"Putrescible Wastes" (CIWMB) include wastes that are capable of being
decomposed by micro-organisms with sufficient rapidity as to cause
nuisances because of odors, gases or other offensive conditions.
"P-value" (SWRCB) means the smallest significance level for which the null
hypothesis would be rejected, based on the data that was actually
observed.
"Rapid geologic change" (SWRCB) means alteration of the ground surface
through such actions as landslides, subsidence, liquefaction, and
faulting.
"R Chart (range chart)" (SWRCB) means a control chart for evaluating the
variability within a process in terms of the subgroup range R.
"Reconstruction" (SWRCB) means modification to an existing waste
management unit (Unit) which entails costs amounting to 50 percent or more
of the initial cost of the Unit.
"Refuse" (CIWMB) includes garbage and rubbish.
"Regional Water Quality Control Board" - see "RWQCB"
"Registered Civil Engineer" (CIWMB) means a civil engineer registered by
the State of California, pursuant to section 6762 of the Business and
Professions Code.
"Registered Geologist" (CIWMB) means a geologist registered by the State
of California, pursuant to section 7842 of the Business and Professions
Code.
"Regulated Hazardous Waste" (CIWMB) means a hazardous waste, as defined in
s66260.10 of Division 4.5 of Title 22 of this code.
"Relative compaction" (SWRCB) means the degree of compaction achieved, as
a percentage of the laboratory compaction, in accordance with accepted
civil engineering practices.
"Removal" (CIWMB) means the act of taking solid wastes from the place of
waste generation either by an approved collection agent or by a person in
control of the premises.
"Removal Frequency" (CIWMB) means frequency of removal of solid wastes
from the place of waste generation either by an approved collection agency
or by the owner of the waste, or frequency of removal of recyclables at
facilities which separate recyclables from the waste stream.
"Rubbish" (CIWMB) includes non-putrescible solid wastes such as ashes,
paper, cardboard, tin cans, wood, glass, bedding, crockery, plastics,
rubber by-products or litter.
"Run-off" (SWRCB) means any precipitation, leachate, or other liquid that
drains from any part of a waste management unit (Unit).
"Run-on" (SWRCB) means any precipitation or other liquid that drains onto
any part of a waste management unit.
"RWQCB" or "Regional Water Quality Control Board" (SWRCB) has the same
meaning as does the latter term, as described under Division 7 of the
California Water Code.
"RWQCB-Permitted Area" (SWRCB) (as capitalized) means the portion of land
designated in WDRs for the discharge of waste at a waste management unit.
"Salvaging" (CIWMB) means the controlled removal of waste material for
utilization.
"Saturated zone" (SWRCB) means an underground zone in which all openings
in and between natural geologic materials are filled with water.
"Scavenging" (CIWMB) means the uncontrolled and/or unauthorized removal of
solid waste materials, or recyclable material at a solid waste facility.
"Semi-solid waste" (SWRCB) means waste containing less than 50 percent
solids.
"Sensitive biological receptor of concern" (SWRCB) means a member of any
species of organism whose members are likely to be exposed to a release
from a waste management unit and experience some measurable adverse effect
as a result of that exposure.
"Septic Tank Pumpings" (CIWMB) include sludge and wastewater removed from
septic tanks.
"Shredding" (CIWMB) includes a process of reducing the particle size of
solid wastes through use of grinding, shredding, milling or rasping
machines. Shredding for the purposes of this Division does not apply to
shredding of waste tires.
"Site-Specific" (CIWMB) means specific to the local site.
"Slope Failure" (SWRCB) means the downward and outward movement of ground
slopes (e.g., natural rock, soils, artificial fills, or continuations of
these materials).
"Sludge" (SWRCB) means residual solids and semi-solids from the treatment
of water, wastewater, and other liquids. It does not include liquid
effluent discharged from such treatment processes.
"Soil Engineer" (CIWMB) is synonymous with geotechnical engineer; means a
registered civil engineer that is qualified to use the title of "soil
engineer," pursuant to California Code of Regulations, Title 16, section
426.50.
"Soil-pore liquid" (SWRCB) means the liquid contained in openings between
particles of soil in the unsaturated zone.
"Solid Waste Management" (CIWMB) includes a planned program for
effectively controlling the generation, storage, collection,
transportation, processing and reuse, conversion or disposal of solid
wastes in a safe, sanitary, aesthetically acceptable, environmentally
sound and economical manner. It includes all administrative, financial,
environmental, legal and planning functions as well as the operational
aspects of solid waste handling, disposal and resource recovery systems
necessary to achieve established objectives.
"Sorbent" (SWRCB) means a substance which takes up and holds a liquid
either by absorption or adsorption.
"Special Waste" (CIWMB) means "special waste" as defined in Title 22.
"State Minimum Standards" (CIWMB) means the following sections of this
Subdivision for the purposes of implementing Public Resources Code Section
44104: 20510 to 20701, 20710 to 20937, 21100 to 21200, 21430 and 21600.
"State Water Resources Control Board" - see "SWRCB"
"Static Conditions" (SWRCB) means under conditions of no external motions
or forces, such as those of earthquakes.
"Statistically significant" (SWRCB) means a statistical test has a p-value
that is small enough for the null hypothesis to be rejected.
"Storage" (SWRCB) means the holding of waste or recyclable materials for a
temporary period, at the end of which the materials either is treated or
is discharged elsewhere.
"Store" (CIWMB) means stockpile, accumulate for later use or discard.
[Note: this standard does not apply to waste tires.]
"Storm" (SWRCB) means the maximum precipitation for a given duration that
is expected during the given recurrence interval [e.g., a 24-hour
(duration) 100 year (recurrence interval) storm].
"Surface impoundment" (SWRCB) means a waste management unit which is a
natural topographic depression, excavation, or diked area, which is
designed to contain liquid wastes or wastes containing free liquids, and
which is not an injection well.
"SWRCB" (SWRCB) means the State Water Resources Control Board, as
described under Division 7 of the Water Code.
"Synthetic liner" - see "geosynthetic(s)"
"Tailings pond" (SWRCB) means an excavated or diked area which is intended
to contain liquid and solid wastes from mining and milling operations.
"Trace Gases" (CIWMB) means all other organic or inorganic compounds or
elements, measured at less than one percent by volume, found together with
the principal gases in landfill gas, and may include vinyl chloride,
benzene, hydrogen sulfide, carbon monoxide, hydrogen, mercury, etc.
"Transmissivity" (SWRCB) means the rate at which water of the prevailing
kinematic viscosity is transmitted through a unit width of the aquifer
under a unit hydraulic gradient.
"Treatment" (SWRCB) means any method, technique, or process designed to
change the physical, chemical, or biological characteristics of waste so
as to render it less harmful to the quality of the waters of the state,
safer to handle, or easier to contain or manage. The term includes use of
waste as a fuel, nutrient, or soil amendment.
"Treatment zone" (SWRCB) means a soil area of the unsaturated zone of a
land treatment unit within which constituents of concern are degraded,
transformed, or immobilized.
"Underlying ground water" (SWRCB), for the purposes of waste management
unit siting criteria, includes water which rises above the zone of
saturation due to capillary forces.
"Unit" - see "waste management unit"
"Unsaturated zone" (SWRCB) means the zone between the ground surface and
the regional water table or, in cases where the uppermost aquifer is
confined, the zone between the ground surface and the top of the saturated
portion of the aquifer's confining layer.
"Unstable Areas" (CIWMB) means locations susceptible to natural or
human-induced events or forces which are capable of rupturing the site
containment structure.
"Uppermost aquifer" (SWRCB) means the geologic formation nearest the
natural ground surface that is an aquifer, as well as lower aquifers that
are hydraulically interconnected with this aquifer.
"Vector" (CIWMB) includes any insect or other arthropod, rodent, or other
animal capable of transmitting the causative agents of human disease, or
disrupting the normal enjoyment of life by adversely affecting the public
health and well being.
"Waste constituent" (SWRCB) means a constituent that is reasonably
expected to be in or derived from waste contained in a waste management
unit.
"Waste management facility" or "facility" (SWRCB) means the entire parcel
of property at which waste discharge operations are conducted. Such a
facility may include one or more waste management units.
"Waste management unit" or "Unit" (SWRCB) (the latter capitalized or in
quotes at the beginning of a sentence) means an area of land, or a portion
of a waste management facility, at which waste is discharged. The term
includes containment features and ancillary features for precipitation and
drainage control and for monitoring.
"Waste pile" (SWRCB) means a waste management unit (Unit) at which only
noncontainerized, bulk, dry solid waste is discharged and piled for
treatment or storage on an engineered liner system that prevents the waste
from contacting the underlying land surface. The term does not include a
Unit of similar construction which is used for waste disposal (such a Unit
would be a landfill).
"Water quality impairment" (SWRCB) means degradation of the existing
quality of a body of surface or ground water resulting from a release of
waste constituents, waste-derived hazardous constituents, or reaction
products, including but not limited to any incomplete decomposition
product which could cause nuisance by odor.
"Water Standard" (SWRCB) (as capitalized) means the water quality
protection standard under s20390.
"WDRs" (SWRCB) means waste discharge requirements.
"X Bar chart" (SWRCB) means a control chart for evaluating the process
level or subgroup differences in terms of the subgroup average.
"Zone of saturation" (SWRCB) means the subsurface zone which extends
downward from the base of the unsaturated zone in which the interstices
are filled with water under pressure that is equal to or greater than
atmospheric pressure. Although the zone can contain gas-filled interstices
(in which the gas pressure exceeds atmospheric pressure) or interstices
filled with fluids other than water, it is still considered saturated.
Note: Authority cited: Section 1058, Water Code; and Section 40502 Public
Resources Code. Reference: Section 13172, Water Code; Sections 40000,
40001, 40002, 43103 and 43105, Public Resources Code, and Title 40, CFR
258.2.
HISTORY
1. New article 2 (section 20164) and section filed 6-18-97; operative
7-18-97
(Register 97, No. 25).
2. Change without regulatory effect amending definition of "State Minimum
Standards" filed 3-8-99 pursuant to
section 100, title 1, California Code ofRegulations (Register 99, No. 11).
3. Amendment of definition of "Discrete unit" and new definitions of
"Closure
plan" and "Postclosure maintenance plan" filed 2-25-2003; operative
2-25-2003
pursuant to Government Code section 11343.4 (Register 2003, No. 9).
27 CA ADC s 20164
END OF DOCUMENT
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