Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › AIR DIVISION - AIR POLLUTION CONTROL PROGRAM › Chapter 335-3-19 - CONTROL OF MUNICIPAL SOLID WASTE LANDFILL GAS EMISSIONS › Section 335-3-19-.01 - Definitions

Current through Register Vol. 42, No. 9, June 28, 2024
(1) For the
				purposes of this Chapter and rules
				335-3-10-.02(75)
				and 335-3-10-.02(76)
				only, the following words and phrases, unless a different meaning is plainly
				required by the content, shall have the following meanings.
(a)
"
Active collection
				system
"
means a gas collection system that uses gas mover
				equipment.
(b)
"
Active landfill
"
means a landfill in
				which solid waste is being placed or a landfill that is planned to accept waste
				in the future.
(c)
"
Closed area
"
means a separately
				lined area of an MSW landfill in which solid waste is no longer being placed.
				If additional solid waste is placed in that area of the landfill, that landfill
				area is no longer closed. The area shall be separately lined to ensure that the
				landfill gas does not migrate between open and closed areas.
(d)
"
Closed
				landfill
"
means a landfill in which solid waste is no
				longer being placed, and in which no additional solid wastes will be placed
				without first filing a notification of modification as prescribed under §
				60.7(a)(4), 40 CFR. Once a notification of modification has been filed, and
				additional solid waste is placed in the landfill, the landfill is no longer
				closed.
(e)
"
Closed landfill subcategory
"
means a
				closed landfill that has submitted a closure report as specified in rule
				335-3-19-.03(6)(e)
				on or before September 27, 2017.
(f)
"
Closure
"
means that point in time
				when a landfill becomes a closed landfill.
(g)
"
Commercial solid
				waste
"
means all types of solid waste generated by
				stores, offices, restaurants, warehouses, and other nonmanufacturing
				activities, excluding residential and industrial wastes.
(h)
"
Controlled
				landfill
"
means any landfill at which collection and
				control systems are required under this Chapter as a result of the nonmethane
				organic compounds emission rate. The landfill is considered controlled at the
				time a collection and control system design plan is submitted in compliance
				with rule
				335-3-19-.03(1)(d)2.(i).
(i)
"
Corrective action
				analysis
"
means a description of all reasonable interim
				and long-term measures, if any, that are available, and an explanation of why
				the selected corrective action(s) is/are the best alternative(s), including,
				but not limited to, considerations of cost effectiveness, technical
				feasibility, safety, and secondary impacts.
(j)
"
Design
				capacity
"
means the maximum amount of solid waste a
				landfill can accept, as indicated in terms of volume or mass in the most recent
				permit issued by the Department, plus any in-place waste not accounted for in
				the most recent permit. If the owner or operator chooses to convert the design
				capacity from volume to mass or from mass to volume to demonstrate its design
				capacity is less than 2.5 million megagrams or 2.5 million cubic meters, the
				calculation must include a site-specific density, which must be recalculated
				annually.
(k)
"
Disposal facility
"
means all
				contiguous land and structures, other appurtenances, and improvements on the
				land used for the disposal of solid waste.
(l)
"
Emission rate
				cutoff
"
means the threshold annual emission rate to which
				a landfill compares its estimated emission rate to determine if control under
				the regulation is required.
(m)
"
Enclosed combustor
"
means an
				enclosed firebox which maintains a relatively constant limited peak temperature
				generally using a limited supply of combustion air. An enclosed flare is
				considered an enclosed combustor.
(n)
"
Flare
"
means an open combustor
				without enclosure or shroud.
(o)
"
Gas mover equipment
"
means the
				equipment (i.e., fan, blower, compressor) used to transport landfill gas
				through the header system.
(p) "
Gust
" means the highest instantaneous wind speed that
				occurs over a 3-second running average.
(q)
"
Household
				waste
"
means any solid waste (including garbage, trash,
				and sanitary waste in septic tanks) derived from households (including, but not
				limited to, single and multiple residences, hotels and motels, bunkhouses,
				ranger stations, crew quarters, campgrounds, picnic grounds, and day-use
				recreation areas). Household waste does not include fully segregated yard
				waste. Segregated yard waste means vegetative matter resulting exclusively from
				the cutting of grass, the pruning and/or removal of bushes, shrubs, and trees,
				the weeding of gardens, and other landscaping maintenance activities. Household
				waste does not include construction, renovation, or demolition wastes, even if
				originating from a household.
(r)
"
Industrial solid waste
"
means solid
				waste generated by manufacturing or industrial processes that is not a
				hazardous waste regulated under Subtitle C of the Resource Conservation and
				Recovery Act. Such waste may include, but is not limited to, waste resulting
				from the following manufacturing processes: electric power generation;
				fertilizer/agricultural chemicals; food and related products/by-products;
				inorganic chemicals; iron and steel manufacturing; leather and leather
				products; nonferrous metals manufacturing/foundries; organic chemicals;
				plastics and resins manufacturing; pulp and paper industry; rubber and
				miscellaneous plastic products; stone, glass, clay, and concrete products;
				textile manufacturing; transportation equipment; and water treatment. This term
				does not include fly ash waste, bottom ash waste, boiler slag waste, or flue
				gas emission control waste which result from the combustion of coal or other
				fossil fuels at electric or steam generating plants. Additionally, this term
				does not include mining waste or oil and gas wastes, or small quantity
				generator waste as defined in ADEM Admin. Code r.
				335-14-2-.01(5).
				Uncontaminated concrete, soil, brick, rock, and similar materials are excluded
				from this definition.
(s)
"
Interior Well
"
means any well or
				similar collection component located inside the perimeter of the landfill
				waste. A perimeter well located outside the landfilled waste is not an interior
				well.
(t)
"
Landfill
"
means an area of land or
				an excavation in which wastes are placed for permanent disposal, and that is
				not a land application unit, surface impoundment, injection well, or waste pile
				as those terms are defined under ADEM Admin. Code r.
				335-13-1-.03.
(u)
"
Lateral
				expansion
"
means a horizontal expansion of the waste
				boundaries of an existing MSW landfill. A lateral expansion is not a
				modification unless it results in an increase in the design capacity of the
				landfill.
(v) "
Leachate recirculation
" means the practice of taking
				the leachate collected from the landfill and reapplying it to the landfill by
				any of one of a variety of methods, including pre-wetting of the waste, direct
				discharge into the working face, spraying, infiltration ponds, vertical
				injection wells, horizontal gravity distribution systems, and pressure
				distribution systems.
(w) "
Modification
" means an increase in the permitted
				volume design capacity of the landfill by either lateral or vertical expansion
				based on its design capacity as of July 17, 2014. Modification does not occur
				until the owner or operator commences construction on the lateral or vertical
				expansion.
(x)
"
Municipal solid waste landfill
"
or
"MSW landfill
"
means an entire
				disposal facility in a contiguous geographic space where household waste is
				placed in or on land. An MSW landfill may also receive other types of RCRA
				Subtitle D wastes (ADEM Admin. Code r.
				335-13-1-.03) such as commercial
				solid waste, nonhazardous sludge, conditionally exempt small quantity generator
				waste, and industrial solid waste. Portions of an MSW landfill may be separated
				by access roads. An MSW landfill may be publicly or privately owned. An MSW
				landfill may be a new MSW landfill, an existing MSW landfill, or a lateral
				expansion.
(y) "
Municipal solid waste landfill emissions
" or "
MSW landfill emissions
" means gas generated by the
				decomposition of organic waste deposited in an MSW landfill or derived from the
				evolution of organic compounds in the waste.
(z)
"
NMOC
"
means nonmethane organic
				compounds, as measured according to the provisions of rule
				335-3-19-.03(3).
(aa)
"
Nondegradable
				waste
"
means any waste that does not decompose through
				chemical breakdown or microbiological activity. Examples are, but are not
				limited to, concrete, municipal waste combustor ash, and metals.
(bb)
"
Passive collection
				system
"
means a gas collection system that solely uses
				positive pressure within the landfill to move the gas rather than using gas
				mover equipment.
(cc) "
Root cause analysis
" means an assessment conducted
				through a process of investigation to determine the primary cause, and any
				other contributing causes, of positive pressure at a wellhead.
(dd)
"
Sludge
"
means any nonhazardous
				solid, semisolid, or liquid waste generated from a municipal, commercial, or
				industrial wastewater treatment plant, water supply treatment plant, or air
				pollution control facility, exclusive of the treated effluent from a wastewater
				treatment plant.
(ee)
"
Solid waste
"
means any garbage or
				rubbish, construction/demolition debris, ash, sludge from a wastewater
				treatment plant, water supply treatment plant, or air pollution control
				facility and other discarded material, including solid, liquid, semisolid, or
				contained gaseous material resulting from industrial, commercial, mining, and
				agricultural operations, and from community activities or materials intended
				for or capable of recycling, but which have not been diverted or removed from
				the solid waste stream. The term "solid waste" does not include recovered
				material, solid or dissolved material in domestic sewage, or solid or dissolved
				materials in irrigation return flows or industrial discharges that are point
				sources subject to National Pollutant Discharge permits under the Federal Water
				Pollution Control Act
				33 U.S.C.
				1342, as amended, or source, special nuclear,
				or by-product material as defined by the Atomic Energy Act of 1954, as amended
				(42 U.S.C.
				2011
et seq
.). Also
				excluded from this definition are wastes from silvicultural operations, land
				application of crop residues, animal residues, animal manure and ash resulting
				exclusively from the combustion of fossil fuels or wood during normal
				agricultural operations or mining refuse as defined and regulated pursuant to
				the Alabama Mining Act.
(ff)
"
Sufficient density
"
means any
				number, spacing, and combination of collection system components, including
				vertical wells, horizontal collectors, and surface collectors, necessary to
				maintain emission and migration control as determined by measures of
				performance set forth in this Chapter.
(gg)
"
Sufficient
				extraction rate
"
means a rate sufficient to maintain a
				negative pressure at all wellheads in the collection system without causing air
				infiltration, including any wellheads connected to the system as a result of
				expansion or excess surface emissions, for the life of the blower.
(hh) "
Treated landfill
				gas
" means landfill gas processed in a treatment system as defined
				in this rule.
(ii) "
Treatment system
" means a system that filters,
				de-waters, and compresses landfill gas for sale or beneficial use.
(jj) "
Untreated landfill
				gas
" means any landfill gas that is not treated landfill
				gas.