NR 660.10(101)(101) “Representative sample” means a sample of a universe or whole (e.g., waste pile, lagoon, ground water) which can be expected to exhibit the average properties of the universe or whole.

NR 660.10(102)(102) “Run-off” means any rainwater, leachate or other liquid that drains over land from any part of a facility.

NR 660.10(103)(103) “Run-on” means any rainwater, leachate or other liquid that drains over land onto any part of a facility.

NR 660.10(104)(104) “Saturated zone” or “zone of saturation” means that part of the earth’s crust in which all voids are filled with water.

NR 660.10(105)(105) “Sludge” means any solid, semi-solid 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.

NR 660.10(106)(106) “Sludge dryer” means any enclosed thermal treatment device that is used to dehydrate sludge and that has a maximum total thermal input, excluding the heating value of the sludge itself, of 2,500 Btu/lb of sludge treated on a wet-weight basis.

NR 660.10(107)(107) “Small quantity generator” means a generator who generates any of the following amounts in a calendar month:

NR 660.10(107)(a)(a) Greater than 100 kilograms but less than 1,000 kilograms of non-acute hazardous waste.

NR 660.10(107)(b)(b) Less than or equal to 1 kilogram of acute hazardous waste listed in s. NR 661.0031 or 661.0033 (5).

NR 660.10(107)(c)(c) Less than or equal to 100 kilograms of any residue or contaminated soil, water, or other debris resulting from the cleanup of a spill, into or on any land or water, of any acute hazardous waste listed in s. NR 661.0031 or 661.0033 (5).

NR 660.10(108)(108) “Solid waste” means a solid waste as defined in s. NR 661.0002.

NR 660.10(108m)(108m) “Solvent-contaminated wipe” means:

NR 660.10(108m)(a)1.1. Contains one or more of the F001 to F005 solvents listed in s. NR 661.0031 or the corresponding P- or U-listed solvents listed in s. NR 661.0033.

NR 660.10(108m)(a)2.2. Exhibits a hazardous characteristic found in subch. C of ch. NR 661, when that characteristic results from a solvent listed in ch. NR 661.

NR 660.10(108m)(a)3.3. Exhibits only the hazardous waste characteristic of ignitability found in s. NR 661.0021 due to the presence of one or more solvents that are not listed in ch. NR 661.

NR 660.10(108m)(b)(b) Solvent-contaminated wipes that contain listed hazardous waste other than solvents, or exhibit the characteristic of toxicity, corrosivity, or reactivity due to contaminants other than solvents, are not eligible for the exclusions at s. NR 661.0004 (1) (z) and (2) (r).

NR 660.10(109)(109) “Sorbent” means a material that is used to soak up free liquids by either adsorption or absorption, or both. “Sorb” means to either adsorb or absorb, or both.

NR 660.10(110)(110) “Staging pile” means an accumulation of solid, non-flowing remediation waste (as defined in this section) that is not a containment building and that is used only during remedial operations for temporary storage at a facility. Staging piles shall be designated by the department according to s. NR 664.0554.

NR 660.10(111)(111) “State” means any of the several states, the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, Guam, American Samoa and the Commonwealth of the Northern Mariana Islands.

NR 660.10(112)(112) “Storage” means the holding of hazardous waste for a temporary period, at the end of which the hazardous waste is treated, disposed of or stored elsewhere.

NR 660.10(113)(113) “Subsurface fluid distribution system” means an assemblage of perforated pipes or drain tiles, or any similar conveyance, intended to place or distribute a fluid underground.

NR 660.10(114)(114) “Sump” means any pit or reservoir that meets the definition of tank and those troughs or trenches connected to it that serve to collect hazardous waste for transport to hazardous waste storage, treatment or disposal facilities; except that as used in the landfill, surface impoundment and waste pile rules, sump means any lined pit or reservoir that serves to collect liquids drained from a leachate collection and removal system or leak detection system for subsequent removal from the system.

NR 660.10(115)(115) “Surface impoundment” or “impoundment” means a facility or part of a facility which is a natural topographic depression, human-made excavation or diked area formed primarily of earthen materials (although it may be lined with human-made materials), which is designed to hold an accumulation of liquid wastes or wastes containing free liquids, and which is not an injection well. Examples of surface impoundments are holding, storage, settling and aeration pits, ponds and lagoons.

NR 660.10(116)(116) “Tank” means a stationary device, designed to contain an accumulation of hazardous waste which is constructed primarily of non-earthen materials (e.g., wood, concrete, steel, plastic) which provide structural support.

NR 660.10(117)(117) “Tank system” means a hazardous waste storage or treatment tank and its associated ancillary equipment and containment system.

NR 660.10(118)(118) “TEQ” means toxicity equivalence, the international method of relating the toxicity of various dioxin/furan congeners to the toxicity of 2,3,7,8-tetrachlorodibenzo-p-dioxin.

NR 660.10(119)(119) “Thermal treatment” means the treatment of hazardous waste in a device which uses elevated temperatures as the primary means to change the chemical, physical or biological character or composition of the hazardous waste. Examples of thermal treatment processes are incineration, molten salt, pyrolysis, calcination, wet air oxidation and microwave discharge.