R 299.4105 Definitions; S to W.

Rule 105. As used in these rules: (a) "Sanitary landfill" means a type of disposal area consisting of 1 or more landfill units and the active work areas associated with these units. Sanitary landfills shall be classified as 1 of the following types of landfills: (i) A type II landfill, which is a municipal solid waste landfill and includes a municipal solid waste incinerator ash landfill. (ii) A type III landfill, which is any landfill that is not a municipal solid waste landfill or hazardous waste landfill and includes all of the following: (A) Construction and demolition waste landfills. (B) Industrial waste landfills. (C) Landfills which accept waste other than household waste, municipal solid waste incinerator ash, or hazardous waste from conditionally exempt small quantity generators. (b) "Saturated zone" or "zone of saturation" means that part of the earth's crust in which all voids are filled with water. (c) "Scavenging" means the uncontrolled picking of materials from solid waste. (d) "Secondary collection system" means the liquid collection and removal system between the liners of a multiple liner system in a landfill cell. In the case of an unmonitorable unit, the secondary collection system is also a leak detection system. (e) "Sludge" means any solid or semisolid waste that is generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility. "Sludge" also includes any other semisolid industrial waste. (f) "Specific site" means an area within a municipality or municipalities. (g) "Sole-source aquifer" means those aquifers that are designated under section 1424(e) of the federal safe drinking water act of 1974, Public Law 93-523, 42 U.S.C. §300h et seq. (h) "Solid waste boundary" means the outermost perimeter of the solid waste (projected in the horizontal plane) as it would exist at completion of the sanitary landfill and as authorized in a construction permit or in engineering plans approved for the landfill unit by the solid waste control agency before January 11, 1979. (i) "Solid waste control agency" means the certified health department that has jurisdiction in the county or, in the absence of a certified health department, the department. (j) "Solid waste management industry" means any of the following: (i) An individual or organization that derives a substantial portion of its income from the collection, transportation, or disposal of solid waste. (ii) A manufacturing industry that collects, transports, and disposes of solid waste that is generated incidental to its operation. (iii) A unit of government or subdivision thereof that collects, transports, or disposes of solid waste within its political boundary when 4 members, as defined in paragraphs (i) and (ii) of this subdivision, cannot be found. (k) "Solid waste management system" means a set of procedures that provides for the collection, transportation, separation, recycling, recovery, and disposal of solid waste. (l) "Speculative accumulation" means the storage of material intended for recycling or reuse at a site for a period of over 1 year, or for low-hazard industrial waste accumulated at the site of generation, a period of 3 years. A material is not accumulated speculatively, however, if the person who accumulates it can show that the material can be recycled into marketable raw materials or new products and that, during the period, the amount of material that is recycled or that is transferred to a different site for recycling equals not less than 75%, by weight or volume, of the amount of material that was accumulated at the beginning of the period. (m) "Standard industrial classification number" means the number assigned to an industry by the United States office of management and budget and contained in the standard industrial classification manual. The manual is adopted by reference in R 299.4132. (n) "Statistically significant increase" means a verified increase in groundwater concentration for a given constituent for which statistical analysis is required in the approved hydrogeological monitoring plan that is inconsistent with background concentrations given chance expectations for the site as a whole. (o) "Sump" means any lined pit, manhole, or reservoir that serves to collect liquids drained from a leachate collection and removal system, secondary collection system, or leak detection system. (p) "Surface water" means a body of water that has its top surface exposed to the atmosphere and includes a flowing body, a pond, or a lake, except for drainageways and ponds that are used solely for wastewater conveyance, treatment, or control. (q) "Synthetic liner" or "flexible membrane liner" means very low-permeability synthetic membrane liners or barriers that are used with any geotechnical engineering-related material as an integral part of a man-made project, structure, or system. (r) "Total inorganic nitrogen" means the sum of ammonia-nitrogen, nitrate-nitrogen, and nitrite-nitrogen. (s) "TSCA" means the toxic substances control act, 15 U.S.C. §2601 et seq. (t) "Unmonitorable unit" means a landfill unit that is not a monitorable unit. (u) "Uppermost aquifer" means the geologic formation which is nearest to the natural ground surface and which is an aquifer and includes lower aquifers that are hydraulically interconnected with this aquifer within the facility's property boundary. (v) "Vertical expansion" means the landfilling of solid waste above the elevations indicated in the construction permit or in engineering plans approved for the landfill unit by the solid waste control agency before January 11, 1979. Increases in elevation approved by the director are not new disposal areas if the volume of waste to be disposed of is not expanded beyond the volume previously approved and if the expansion is in compliance with the act and these rules. (w) "Wetland" means the areas defined as wetlands in part 303 of the act.