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This historical page is being kept for research or reference
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This historical page is being kept for research or reference
purposes and will not be updated.

Schedule 4: Hazardous Wastes and Hazardous Recyclable Materials from Specific and Non-Specific Sources

(Paragraphs 1(1)(c) and 2(1)(c) and subparagraphs 8(j)(v) and 38(1)(a)(iii))

Part 1 - Hazardous Wastes and Hazardous Recyclable Materials From Non-Specific Sources
Item Column 1
Identification No.		 Column 2
Description of Hazardous Waste and Hazardous Recyclable Material
1. F001 The following spent halogenated solvents used in degreasing: tetrachloroethylene, trichloroethylene, methylene chloride, 1,1,1-trichloroethane, carbon tetrachloride and chlorinated fluorocarbons; all spent solvent mixtures and blends used in degreasing containing, before use, a total of 10% or more (by volume) of one or more of the above halogenated solvents or those solvents listed as F002, F004 or F005; and still bottoms from the recovery of those spent solvents and spent solvent mixtures.
2. F002 The following spent halogenated solvents: tetrachloroethylene, methylene chloride, trichloroethylene, 1,1,1-trichloroethane, chlorobenzene, 1,1,2-trichloro-1,2,2-trifluoroethane, ortho-dichlorobenzene, trichlorofluoromethane and 1,1,2- trichloroethane; all spent solvent mixtures and blends containing, before use, a total of 10% or more (by volume) of one or more of the above halogenated solvents or those listed as F001, F004 or F005; and still bottoms from the recovery of those spent solvents and spent solvent mixtures.
3. F003 The following spent non-halogenated solvents: xylene, acetone, ethyl acetate, ethyl benzene, ethyl ether, methyl isobutyl ketone, n-butyl alcohol, cyclohexanone and methanol; all spent solvent mixtures and blends containing, before use, only the above spent non-halogenated solvents; and all spent solvent mixtures and blends containing, before use, one or more of the above spent non-halogenated solvents, and a total of 10% or more (by volume) of one or more of those solvents listed as F001, F002, F004 or F005; and still bottoms from the recovery of those spent solvents and spent solvent mixtures.
4. F004 The following spent non-halogenated solvents: cresols, cresylic acid and nitrobenzene; all spent solvent mixtures and blends containing, before use, a total of 10% or more (by volume) of one or more of the above spent non-halogenated solvents or those solvents listed as F001, F002 or F005; and still bottoms from the recovery of these spent solvents and spent solvent mixtures.
5. F005 The following spent non-halogenated solvents: toluene, methyl ethyl ketone, carbon disulphide, isobutanol, pyridine, benzene, 2-ethoxyethanol and 2-nitropropane; all spent solvent mixtures and blends containing, before use, a total of 10% or more (by volume) of one or more of the above spent non-halogenated solvents or those solvents listed as F001, F002 or F004; and still bottoms from the recovery of those spent solvents and spent solvent mixtures.
6. F006 Wastewater treatment sludges from electroplating operations except for the following processes: (1) sulphuric acid anodizing of aluminum; (2) tin plating on carbon steel; (3) zinc plating (on a segregated basis) on carbon steel; (4) aluminum or aluminum-zinc plating on carbon steel; (5) cleaning or stripping associated with tin, zinc or aluminum plating on carbon steel; and (6) chemical etching and milling of aluminum.
7. F007 Spent cyanide plating bath solutions from electroplating operations.
8. F008 Plating bath sludge from the bottom of plating baths from electroplating operations where cyanides are used in the process.
9. F009 Spent stripping and cleaning bath solutions from electroplating operations where cyanides are used in the process.
10. F010 Quenching bath sludge from oil baths from metal heat treating operations where cyanides are used in the process.
11. F011 Spent cyanide solutions from salt bath pot cleaning from metal heat treating operations.
12. F012 Quenching wastewater treatment sludge from metal heat treating operations where cyanides are used in the process.
13. F019 Wastewater treatment sludge from the chemical conversion coating of aluminum except from zirconium phosphating in aluminum can washing if such phosphating is an exclusive conversion coating process.
14. F020 Wastes from the production or manufacturing use (as a reactant, chemical intermediate or component in a formulating process) of tri- or tetrachlorophenol or of intermediates used to produce their pesticide derivatives, excluding wastewater and spent carbon from hydrogen chloride purification and wastes from the production of hexachlorophene from highly purified 2,4,5-trichlorophenol.
15. F021 Wastes from the production or manufacturing use (as a reactant, chemical intermediate or component in a formulating process) of pentachlorophenol or of intermediates used to produce its derivatives, excluding wastewater and spent carbon from hydrogen chloride purification.
16. F022 Wastes from the manufacturing use (as a reactant, chemical intermediate or component in a formulating process) of tetra-, penta- or hexachlorobenzenes under alkaline conditions, excluding wastewater and spent carbon from hydrogen chloride purification.
17. F023 Wastes from the production of materials on equipment previously used for the production or manufacturing use (as a reactant, chemical intermediate or component in a formulating process) of tri- and tetrachlorophenols, excluding wastewater and spent carbon from hydrogen chloride purification and wastes from equipment used only for the production or use of hexachlorophene from highly purified 2,4,5-trichlorophenol.
18. F024 Process wastes, including, but not limited to, distillation residues, heavy ends, tars and reactor clean-out wastes from the production of certain chlorinated aliphatic hydrocarbons by free radical catalyzed processes, those chlorinated aliphatic hydrocarbons being those having carbon chain lengths ranging from 1 to and including 5, with varying amounts and positions of chlorine substitution, and excluding wastewaters, wastewater treatment sludge, spent catalysts and wastes set out in Schedule 7.
19. F025 Condensed light ends, spent filters and filter aids, and spent desiccant wastes from the production of certain chlorinated aliphatic hydrocarbons, by free radical catalyzed processes, those chlorinated aliphatic hydrocarbons being those having carbon chain lengths ranging from 1 to and including 5, with varying amounts and positions of chlorine substitution.
20. F026 Wastes from the production of materials on equipment previously used for the manufacturing use (as a reactant, chemical intermediate or component in a formulating process) of tetra-, penta- or hexachlorobenzene under alkaline conditions, excluding wastewater and spent carbon from hydrogen chloride purification.
21. F027 Discarded unused formulations containing tri-, tetra- or pentachlorophenol or discarded unused formulations containing compounds derived from those chlorophenols, excluding formulations containing hexachlorophene synthesized from prepurified 2,4,5-trichlorophenol as the sole component.
22. F028 Residues resulting from incineration or treatment of soil contaminated with wastes listed as F020, F021, F022, F023, F026 or F027.
23. F032 Wastewaters, spent formulations from wood preserving processes generated at plants that currently use or have previously used chlorophenolic formulations, process residuals and preservative drippage, except wastewaters that have not come into contact with process contaminants, spent formulations that potentially cross-contaminated wastes from wood preserving processes at plants that do not resume or initiate use of chlorophenolic preservatives, and bottom sediment sludge listed as K001.
24. F034 Wastewaters, process residuals, preservative drippage and spent formulations from wood preserving processes generated at plants that use creosote formulations, excluding bottom sediment sludge listed as K001 and wastewaters that have not come into contact with process contaminants.
25. F035 Wastewaters, process residuals, preservative drippage and spent formulations from wood preserving processes generated at plants that use inorganic preservatives containing arsenic or chromium, excluding bottom sediment sludge listed as K001 and wastewaters that have not come into contact with process contaminants.
26. F037 Petroleum refinery primary oil, water and solids separation sludge; sludge generated from the gravitational separation of oil, water and solids during the storage or treatment of process wastewaters and oil cooling wastewaters from petroleum refineries, including, but not limited to, those generated in oil, water and solids separators, tanks and impoundments, ditches and other conveyances, sumps and stormwater units receiving dry weather flow; sludge generated in stormwater units that do not receive dry weather flow; sludge generated from non- contact once-through cooling waters segregated for treatment from other processes or oily cooling waters; sludge generated in biological treatment units that employ one of the following treatment methods: activated sludge, trickling filter, rotating biological contactor for the continuous accelerated biological oxidation of wastewaters, or high-rate aeration (including sludge generated in one or more additional units after wastewaters have been treated in biological treatment units). Wastes listed as K051 are excluded.
27. F038 Petroleum refinery secondary (emulsified) oil, water and solids separation sludge; sludge or float generated from the physical or chemical separation of oil, water and solids in process wastewaters and oily cooling wastewaters from petroleum refineries, including, but not limited to, sludge and floats generated in induced air flotation (IAF) units, tanks and impoundments, and in dissolved air flotation (DAF) units; sludge generated in stormwater units that do not receive dry weather flow; sludge generated from non-contact once-through cooling waters segregated for treatment from other processes or oily cooling water; sludge and float generated in biological treatment units that employ one of the following treatment methods: activated sludge, trickling filter, rotating biological contactor for the continuous accelerated biological oxidation of wastewaters, or high-rate aeration (including sludge and float generated in one or more additional units after wastewaters have been treated in a biological treatment unit). Wastes listed as F037, K048 and K051 are excluded.
28. F039 Leachate (liquids that percolated through land disposed wastes) resulting from the disposal of more than one waste classified as a hazardous waste by being included in this Schedule.


Part 2 - Hazardous Wastes and Hazardous Recyclable Materials From Specific Sources
Item Column 1
Identification No.		 Column 2
Description of Hazardous Waste and Hazardous Recyclable Material
Wood Preservation
1. K001 Bottom sediment sludge from the treatment of wastewaters from wood preserving processes that use creosote or pentachlorophenol or both.
Inorganic Pigments
2. K002 Wastewater treatment sludge from the production of chrome yellow and orange pigments.
3. K003 Wastewater treatment sludge from the production of molybdate orange pigments.
4. K004 Wastewater treatment sludge from the production of zinc yellow pigments.
5. K005 Wastewater treatment sludge from the production of chrome green pigments.
6. K006 Wastewater treatment sludge from the production of chromeoxide green pigments (anhydrous and hydrated).
7. K007 Wastewater treatment sludge from the production of iron blue pigments.
8. K008 Oven residue from the production of chromeoxide green pigments.
Organic Chemicals
9. K009 Distillation bottoms from the production of acetaldehyde from ethylene.
10. K010 Distillation side cuts from the production of acetaldehyde from ethylene.
11. K011 Bottom stream from the wastewater stripper in the production of acrylonitrile.
12. K013 Bottom stream from the acetonitrile column in the production of acrylonitrile.
13. K014 Bottoms from the acetonitrile purification column in the production of acrylonitrile.
14. K015 Still bottoms from the distillation of benzylchloride.
15. K016 Heavy ends or distillation residues from the production of carbon tetrachloride.
16. K017 Heavy ends (still bottoms) from the purification column in the production of epichlorohydrin.
17. K018 Heavy ends from the fractionation column in ethyl chloride production.
18. K019 Heavy ends from the distillation of ethylene dichloride in ethylene dichloride production.
19. K020 Heavy ends from the distillation of vinyl chloride in vinyl chloride monomer production.
20. K021 Aqueous spent antimony catalyst waste from fluoromethanes production.
21. K022 Distillation bottom tars from the production of phenol and acetone from cumene.
22. K023 Distillation light ends from the production of phthalic anhydride from naphthalene.
23. K024 Distillation bottoms from the production of phthalic anhydride from naphthalene.
24. K025 Distillation bottoms from the production of nitrobenzene by the nitration of benzene.
25. K026 Stripping still tails from the production of methyl ethyl pyridines.
26. K027 Centrifuge and distillation residues from toluene diisocyanate production.
27. K028 Spent catalyst from the hydrochlorinator reactor in the production of 1,1,1-trichloroethane.
28. K029 Waste from the product stream stripper in the production of 1,1,1-trichloroethane.
29. K030 Column bottoms or heavy ends from the combined production of trichloroethylene and perchloroethylene.
30. K083 Distillation bottoms from aniline production.
31. K085 Distillation or fractionating column bottoms from the production of chlorobenzenes.
32. K093 Distillation light ends from the production of phthalic anhydride from o-xylene.
33. K094 Distillation bottoms from the production of phthalic anhydride from o-xylene.
34. K095 Distillation bottoms from the production of 1,1,1-trichloroethane.
35. K096 Heavy ends from the heavy ends columns from the production of 1,1,1-trichloroethane.
36. K103 Process residues from aniline extraction from the production of aniline.
37. K104 Combined wastewater streams from nitrobenzene and aniline production.
38. K105 Separated aqueous stream from the reactor product washing step in the production of chlorobenzene.
39. K107 Column bottoms from product separation from the production of 1,1-dimethyl-hydrazine (UDMH) from carboxylic acid hydrazines.
40. K108 Condensed column overheads from product separation and condensed reactor vent gases from the production of 1,1- dimethylhydrazine (UDMH) from carboxylic acid hydrazides.
41. K109 Spent filter cartridges from product purification from the production of 1,1- dimethylhydrazine (UDMH) from carboxylic acid hydrazides.
42. K110 Condensed column overheads from intermediate separation from the production of 1,1-dimethylhydrazine (UDMH) from carboxylic acid hydrazides.
43. K111 Product washwaters from the production of dinitrotoluene via nitration of toluene.
44. K112 Reaction by-product water from the drying column in the production of toluenediamine via hydrogenation of dinitrotoluene.
45. K113 Condensed liquid light ends from the purification of toluenediamine in the production of toluenediamine via hydrogenation of dinitrotoluene.
46. K114 Vicinals from the purification of toluenediamine in the production of toluenediamine via hydrogenation of dinitrotoluene.
47. K115 Heavy ends from the purification of toluenediamine in the production of toluenediamine via hydrogenation of dinitrotoluene.
48. K116 Organic condensate from the solvent recovery column in the production of toluene diisocyanate via phosgenation of toluenediamine.
49. K117 Wastewater from the reactor vent gas scrubber in the production of ethylene dibromide via bromination of ethene.
50. K118 Spent adsorbent solids from the purification of ethylene dibromide in the production of ethylene dibromide via bromination of ethene.
51. K136 Still bottoms from the purification of ethylene dibromide in the production of ethylene dibromide via bromination of ethene.
52. K140 Floor sweepings, off-specification product and spent filter media from the production of 2,4,6-tribromophenol.
53. K149 Distillation bottoms from the production of alpha- (or methyl-) chlorinated toluenes, ring- chlorinated toluenes, benzoyl chlorides and compounds with mixtures of those functional groups, excluding still bottoms from the distillation of benzyl chloride.
54. K150 Organic residuals, excluding spent carbon adsorbent, from the spent chlorine gas and hydrochloric acid recovery processes associated with the production of alpha- (or methyl-) chlorinated toluenes, ring-chlorinated toluenes, benzoyl chlorides and compounds with mixtures of those functional groups.
55. K151 Wastewater treatment sludge generated during the treatment of wastewaters from the production of alpha- (or methyl-) chlorinated toluenes, ring-chlorinated toluenes, benzoyl chlorides and compounds with mixtures of those functional groups, excluding neutralization and biological sludge.
56. K156 Organic waste (including heavy ends, still bottoms, light ends, spent solvents, filtrates and decantates) from the production of carbamates and carbamoyl oximes, excluding waste generated from the manufacture of 3-iodo-2-propynyl n-butylcarbamate.
57. K157 Wastewaters (including scrubber waters, condenser waters, washwaters and separation waters) from the production of carbamates and carbamoyl oximes, excluding wastes generated from the manufacture of 3-iodo-2-propynyl n- butylcarbamate.
58. K158 Bag house dusts and filter or separation solids from the production of carbamates and carbamoyl oximes, excluding wastes generated from the manufacture of 3-iodo-2-propynyl n-butylcarbamate.
59. K159 Organics from the treatment of thiocarbamate wastes.
60. K161 Purification solids (including filtration, evaporation and centrifugation solids), bag house dust and floor sweepings from the production of dithiocarbamate acids and their salts, excluding substances listed as K125 or K126.
Inorganic chemicals
61. K071 Brine purification sludge from the mercury cell process in chlorine production if separately prepurified brine is not used.
62. K073 Chlorinated hydrocarbon wastes from the purification step of the diaphragm cell process using graphite anodes in chlorine production.
63. K106 Wastewater treatment sludge from the mercury cell process in chlorine production.
Pesticides
64. K031 By-product salts generated in the production of monosodium acid methanearsonate (MSMA) and cacodylic acid.
65. K032 Wastewater treatment sludge from the production of chlordane.
66. K033 Wastewater and scrub water from the chlorination of cyclopentadiene in the production of chlordane.
67. K034 Filter solids from the filtration of hexachlorocyclopentadiene in the production of chlordane.
68. K035 Wastewater treatment sludge from the production of creosote.
69. K036 Still bottoms from toluene reclamation distillation in the production of disulfoton.
70. K037 Wastewater treatment sludge from the production of disulfoton.
71. K038 Wastewater from the washing and stripping of phorate production.
72. K039 Filter cake from the filtration of diethylphosphorodithioic acid in the production of phorate.
73. K040 Wastewater treatment sludge from the production of phorate.
74. K041 Wastewater treatment sludge from the production of toxaphene.
75. K042 Heavy ends or distillation residues from the distillation of tetrachlorobenzene in the production of 2,4,5-T.
76. K043 2,6-Dichlorophenol waste from the production of 2,4-D.
77. K097 Vacuum stripper discharge from the chlordane chlorinator in the production of chlordane.
78. K098 Untreated process wastewater from the production of toxaphene.
79. K099 Untreated wastewater from the production of 2,4-D.
80. K123 Process wastewater, including supernates, filtrates and washwaters, from the production of ethylenebisdithiocarbamic acid and its salts.
81. K124 Reactor vent scrubber water from the production of ethylenebisdithiocarbamic acid and its salts.
82. K125 Filtration, evaporation and centrifugation solids from the production of ethylenebisdithiocarbamic acid and its salts.
83. K126 Baghouse dust and floor sweepings in milling and packaging operations from the production or formulation of ethylenebisdithiocarbamic acid and its salts.
84. K131 Wastewater from the reactor and spent sulfuric acid from the acid dryer from the production of methyl bromide.
85. K132 Spent absorbent and wastewater separator solids from the production of methyl bromide.
Explosives
86. K044 Wastewater treatment sludge from the manufacturing and processing of explosives.
87. K045 Spent carbon from the treatment of wastewater containing explosives.
88. K046 Wastewater treatment sludge from the manufacturing, formulation and loading of lead-based initiating compounds.
89. K047 Pink and red water from the production of TNT.
Petroleum refining
90. K048 Dissolved air flotation (DAF) float from the petroleum refining industry.
91. K049 Slop oil emulsion solids from the petroleum refining industry.
92. K050 Heat exchanger bundle cleaning sludge from the petroleum refining industry.
93. K051 American Petroleum Institute (API) separator sludge from the petroleum refining industry.
94. K052 Tanks bottoms (leaded) from the petroleum refining industry.
95. K169 Crude oil storage tank sediment from refining petroleum.
96. K170 Clarified slurry oil tank sediment and in-line filter or separation solids from refining petroleum.
97. K171 Spent hydrotreating catalyst from refining petroleum, including guard beds used to desulfurize feeds to other catalytic reactors, excluding inert support media.
98. K172 Spent hydrorefining catalyst from refining petroleum, including guard beds used to desulfurize feeds to other catalytic reactors, excluding inert support media.
Iron and steel
99. K061 Emission control dust and sludge from the primary production of steel in electric furnaces.
100. K062 Spent pickle liquor from steel finishing operations of facilities within the iron and steel industry at steel works, blast furnaces (including coke ovens), rolling mills, iron and steel foundries, gray and ductile iron foundries, malleable iron foundries, steel investment foundries or other miscellaneous steel foundries, or at facilities in the electrometallurgical products (except steel) industry, steel wiredrawing and steel nails and spikes industry, coldrolled steel sheet, strip and bars industry or steel pipes and tubes industry.
Primary copper
101. K064 Acid plant blowdown slurry and sludge resulting from the thickening of blowdown slurry from primary copper production.
Primary lead
102. K065 Surface impoundment solids contained in and dredged from surface impoundments at primary lead smelting facilities.
Primary zinc
103. K066 Sludge from treatment of process wastewater and acid plant blowdown from primary zinc production.
Primary aluminum
104. K088 Spent potliners from primary aluminum reduction.
Ferroalloys
105. K090 Emission control dust or sludge from ferrochromiumsilicon production.
106. K091 Emission control dust or sludge from ferrochromium production.
Secondary lead
107. K069 Emission control dust and sludge from secondary lead smelting.
108. K100 Waste leaching solution from acid leaching of emission control dust and sludge from secondary lead smelting.
Veterinary pharmaceuticals
109. K084 Wastewater treatment sludge from the production of veterinary pharmaceuticals from arsenic or organo-arsenic compounds.
110. K101 Distillation tar residues from the distillation of aniline-based compounds in the production of veterinary pharmaceuticals from arsenic or organo-arsenic compounds.
111. K102 Residue from the use of activated carbon for decolourization in the production of veterinary pharmaceuticals from arsenic or organo-arsenic compounds.
Ink formulation
112. K086 Solvent washes and sludge, caustic washes and sludge or water washes and sludge from cleaning tubs and equipment used in the formulation of ink from pigments, driers, soaps and stabilizers containing chromium and lead.
Coking
113. K060 Ammonia still lime sludge from coking operations.
114. K087 Decanter tank tar sludge from coking operations.
115. K141 Process residues from the recovery of coal tar, including, but not limited to, collecting sump residues from the production of coke from coal and the recovery of coke by-products produced from coal, excluding those wastes listed as K087.
116. K142 Tar storage tank residues from the production of coke from coal or from the recovery of coke by-products produced from coal.
117. K143 Process residues from the recovery of light oil, including, but not limited to, those generated in stills, decanters and wash oil recovery units from the recovery of coke by- products produced from coal.
118. K144 Wastewater sump residues from light oil refining, including, but not limited to, intercepting or contamination sump sludge from the recovery of coke by-products produced from coal.
119. K145 Residues from naphthalene collection and recovery operations from the recovery of coke by-products produced from coal.
120. K147 Tar storage tank residues from coal tar refining.
121. K148 Residues from coal tar distillation, including, but not limited to, still bottoms.

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