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 › Section 20164 - Combined Calrecycle and SWRCB Technical Definitions

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
[
Note: This section contains the SWRCB's and
						CalRecycle'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 CalRecycle that each agency's definitions function for
						the other agency (e.g., when CalRecycle 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.
"CalRecycle" (CalRecycle) means the Department of
						Resources Recycling and Recovery (formerly 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 USEPA
						under regulations published pursuant to sections
						2002 and
						4005 of RCRA.
"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, as of January 1, 2010, ceased to exist as an agency
						and became part of (subjoined into) a new Department of Resources Recovery and
						Recycling (CalRecycle). CalRecycle 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 (§
											20240 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 §
											20390 and §
											20400, 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 §
											20400] .
"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 §
											13173.
"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
						§
											40130.
"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 §
											20080(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 §
											258.1 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 §
											258.1(e) of the
						federal MSW regulations (40CFR 258), 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 §
											20380 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 (§
											66261.3 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 §
												20230(a).
"Interim cover" (SWRCB) means the same as under §
												20705(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 §§
													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 §
													20200(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
						§
													20090(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
						which--in 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 §
												20340) 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 §
													20390, 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
						40CFR
						258, 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 §
													20080(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 §
													20220(a).
"Nuisance" (SWRCB) has the same meaning as under Water
						Code §
													13050(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 §
															66260.10 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 §
															20390.
"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.