Washington State University
Environmental Health & Safety Hazardous Materials / Wastes

Dangerous Waste List

The following list includes all listed dangerous wastes, other than Acutely Hazardous Wastes, according to the February 1998 Washington State Dangerous Waste Regulations.
NOTE: These wastes can be accumulated to a maximum of 55 gallons in a satellite accumulation area. At the time the maximum allowable volume has been reached, the material must be moved to a 90-day accumulation area within 3 days.

Discarded Chemical Products List

(WAC 173-303-9903) “U – listed” Chemical Products

Hazardous Waste NumberSubstance
U394A2213
U001Acetaldehyde
U034Acetaldehyde, trichloro-
U187Acetamide, N-(4-ethoxyphenyl)-
U005Acetamide, N-9H-fluoren-2-yl-
U112Acetic acid, ethyl ester
U144Acetic acid, lead salt
U214Acetic acid, thallium (I) salt
See F027Acetic acid, (2,4,5-trichlorophenoxy)-
U002Acetone
U003Acetonitrile
U004Acetophenone
U0052-Acetylaminofluorine
U006Acetyl chloride
U007Acrylamide
U008Acrylic Acid
U009Acrylonitrile
U011Amitrole
U012Aniline
U136Arsinic acid, dimethyl
U014Auramine
U015Azaserine
U010Azirino(2',3':3,4)pyrrolo(1,2a)indole-4,7-dione, 6-amino-8[((aminocarbonyl)oxy) methyl] -1,1a,2,8,8a,8b-hexahydro-8a-methoxy-5-methyl
U280Barban
U278Bendiocarb
U364Bendiocarb phenol
U271Benomyl
U157Benz[j]aceanthrylene, 1,2-dihydro-3-methyl-
U016Benz(c)acridine
U017Benzal chloride
U192Benzamide, 3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)
U018Benz[a]anthracene
U094Benzanthracene, 7,12-dimethyl-
U012Benzeneamine
U014Benzenamine, 4,4-carbonimidoylbis(N,N-dimethyl-
U049Benzeneamine, 4-chloro-2-methyl, hydrochloride
U093Benzeneamine, N,N-dimethyl-4-(pheynlazo)-
U328Benzenamine, 2-methyl
U353Benzenamine, 4-methyl
U158Benzeneamine, 4,4-methylenebis(2-chloro-
U222Benzenamine, 2-methyl-, hydrochloride
U181Benzenamine, 2-methyl-5-nitro-
U019Benzene
U038Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl) -alpha-hydroxy, ethyl ester
U030Benzene, 1-bromo-4-phenoxy
U035Benzenebutanoic acid, 4-[bis(2-chloroethyl)amino]-
U037Benzene, chloro-
U221Benzenediamine, ar-methyl-
U0281,2-Benzenedicarboxylic acid, [bis(2-ethyl-hexyl) ester
U0691,2-Benzenedicarboxylic acid, dibutyl ester
U0881,2-Benzenedicarboxylic acid, diethyl ester
U1021,2-Benzenedicarboxylic acid, dimethyl ester
U1071,2-Benzenedicarboxylic acid, di-N-octyl ester
U070Benzene, 1,2-dichloro-
U071Benzene, 1,3-dichloro-
U072Benzene, 1,4-dichloro-
U060Benzene, 1,1'-(2,2-dichloroethylidene)bis[4-chloro-
U223Benzene, 1,3-diisocyanatomethyl-
U239Benzene, dimethyl-
U017Benzene, (dichloromethyl)-
U2011,3-Benzenediol
U127Benzene, hexachloro-
U056Benzene, hexahydro-
U220Benzene, methyl-
U105Benzene, 1-methyl-2,4-dinitro
U106Benzene, 2-methyl-1,3-dinitro
U055Benzene, (1-methylethyl)-
U169Benzene, nitro-
U183Benzene, pentachloro-
U185Benzene, pentachloronitro-
U020Benzenesulfonic acid chloride
U020Benzenesulfonyl chloride
U207Benzene, 1,2,4,5-tetrachloro-
U061Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-chloro-
U247Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-methoxy-
U023Benzene, (trichloromethyl)-
U234Benzene, 1,3,5-trinitro-
U021Benzidine
U2021,2-Benzisothiazilin-3(2H)-one, 1,1-dioxide, and salts
U2781,3-Benzodioxol-4-ol, 2,2-dimethyl-, methyl carbamate
U3641,3-Benzodioxol-4-ol, 2,2-dimethyl-
U2031,3-Benzodioxole, 5-(2-propenyl)
U1411,3-Benzodioxole, 5-(1-propenyl)
U3677-Benzofuranol, 2,3-dihydro-2,2-dimethyl
U0901,3-Benzodioxole, 5 propyl)
U064Benzo(rst)pentaphene
U2482H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenyl-butyl)-
, & salts, when present at concentrations of 0.3% or less
U022Benzo(a)pyrene
U197p-Benzoquinone
U023Benzotrichloride
U0852,2'-Bioxirane
U021(1,1'-Biphenyl)-4,4'-diamine
U073(1,1'-Biphenyl)-4,4'-diamine, 3,3'-dichloro-
U091(1,1'-Biphenyl)-4-'-diamine, 3,3'-dimethoxy-
U095(1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethyl-
U225Bromoform
U0304-Bromophenyl phenyl ether
U1281,3-Butadiene, 1,1,2,3,4,4-hexachloro-
U1721-Butanamine, N-butyl-N-nitroso-
U0311-Butanol
U1592-Butanone
U1602-Butanone peroxide
U0532-Butenal
U0742-Butene, 1,4-dichloro-
U1432-Butenoic acid, 2-methyl-, 7-[[2,3-dihydroxy-2-(1-methoxyethyl)-3-methyl-
1-oxobutoxy]methyl]-2, 3, 5, 7a-tetrahydro-1H-pyrrolizin-1-yl ester, [1S-[1alpha(Z),7(2S*,3R*),7aalpha]]-
U031N-Butyl alcohol
U136Cacodylic acid
U032Calcium chromate
U372Carbamic acid, 1H-benzimidazol-2-yl, methyl ester
 Carbamic acid, [1-[(butylamino) carbonyl]-1H-benzimidazol-2-yl]-, methyl ester
U280Carbamic acid, (3-chlorophenyl)-, 4-chloro-2-butynyl ester
U238Carbamic acid, ethyl ester
U178Carbamic acid, methylnitroso-, ethyl ester
U373Carbamic acid, phenyl-, 1-methylethyl ester
U409Carbamic acid, [1,2-phenylenebis(iminocarbonothioyl)]bis-, dimethyl ester
U097Carbamic chloride, dimethyl
U389Carbamothioic acid, bis(1-methylethyl)-, S-(2,3,3-trichloro-2-propenyl) ester
U387Carbamothioic acid, dipropyl, S-(phenylmethyl) ester
U114Carbamodithioic acid, 1,2-ethanediylbis-, salts & esters
U062Carbamothioic acid, bis(1-methylethyl)-, S-(2,3-dichloro-2-propenyl) ester
U279Carbaryl.
U372Carbendazim
U367Carbofuran phenol
U215Carbonic acid, dithallium (I) salt
U033Carbonic difluoride
U156Carbonochloridic acid, methyl ester
U033Carbon oxyfluoride
U211Carbon tetrachloride
U034Chloral
U035Chlorambucil
U036Chlordane, alpha and gamma isomers
U026Chlornaphazine
U037Chlorobenzene
U038Chlorobenzilate
U039p-Chloro-m-cresol
U0422-Chloroethyl vinyl ether
U044Chloroform
U046Chloromethyl methyl ether
U047beta-Chloronaphthalene
U048o-Chlorophenol
U0494-Chloro-o-toluidine, hydrochloride
U032Chromic acid, calcium salt
U050Chrysene
U051Creosote
U052Cresol (cresylic acid)
U053Crotonaldehyde
U055Cumene
U246Cyanogen bromide
U1972,5-Cyclohexadiene-1,4-dione
U056Cyclohexane
U129Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1alpha,2alpha,3beta,4alpha,5alpha,6beta)
U057Cyclohexanone
U1301,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro-
U058Cyclophosphamide
U2402,4-D, salts and esters
U059Daunomycin
U060DDD
U061DDT
U062Diallate
U063Dibenz[a,h]anthracene
U064Dibenzo[a,i]pyrene
U0661,2-Dibromo-3-chloropropane
U069Dibutyl phthalate
U070o-Dichlorobenzene
U071m-Dichlorobenzene
U072p-Dichlorobenzene
U0733,3'-Dichlorobenzidine
U0741,4-Dichloro-2-butene
U075Dichlorodifluoromethane
U0781,1-Dichloroethylene
U0791,2-Dichloroethylene
U025Dichloroethyl ether
U027Dichloroisopropyl ether
U024Dichloromethoxy ethane
U0812,4-Dichlorophenol
U0822,6-Dichlorophenol
U0841,3-Dichloropropene
U0851,2:3,4-Diepoxybutane
U1081,4-Diethyleneoxide
U028Diethylhexyl phthalate
U395Diethylene glycol, dicarbamate
U086N,N-Diethylhydrazine
U087O,O-Diethyl-S-methyl-dithiophosphate
U088Diethyl phthalate
U089Diethylstilbestrol
U090Dihydrosafrole
U0913,3'-Dimethoxybenzidine
U092Dimethylamine
U093Dimethylaminoazobenzene
U0947,12-Dimethylbenz[a]anthracene
U0953,3'-Dimethylbenzidine
U096alpha, alpha-Dimethylbenzylhydroperoxide
U097Dimethylcarbamoyl chloride
U0981,1-Dimethylhydrazine
U0991,2-Dimethylhydrazine
U1012,4-Dimethylphenol
U102Dimethyl phthalate
U103Dimethyl sulfate
U1052,4-Dinitrotoluene
U1062,6-Dinitrotoluene
U107Di-N-octyl phthalate
U1081,4-Dioxane
U1091,2-Diphenylhydrazine
U110Dipropylamine
U111Di-N-propylnitrosamine
U041Epichlorohydrin
U404Ethanamine, N,N-diethyl-
U001Ethanal
 1,2-Ethanediamine, N,N-dimethyl-N¢-2-pyridinyl-N¢- (2-thienylmethyl)
U174Ethanamine, N-ethyl-N-nitroso-
U067Ethane, 1,2-dibromo-
U076Ethane, 1,1-dichloro-
U077Ethane, 1,2-dichloro-
U131Ethane, hexachloro-
U024Ethane, 1,1'-[methylenebis(oxy)]bis[2-chloro-
U117Ethane, 1,1'-oxybis-
U025Ethane, 1,1'-oxybis[2-chloro-
U184Ethane, pentachloro-
U208Ethane, 1,1,1,2-tetrachloro-
U209Ethane, 1,1,2,2-tetrachloro-
U218Ethanethioamide
U226Ethane, 1,1,1-trichloro-
U227Ethane, 1,1,2-trichloro-
U410Ethanimidothioic acid, N,N'- [thiobis[(methylimino)carbonyloxy]]bis-, dimethyl ester
U394Ethanimidothioic acid, 2-(dimethylamino)-N-hydroxy-2-oxo-, methyl ester.
U359Ethanol, 2-ethoxy-
U173Ethanol, 2,2-(nitrosoimino)bis-
U395Ethanol, 2,2¢-oxybis-, dicarbamate.
U004Ethanone, 1-phenyl-
U043Ethene, chloro-
U042Ethene, 2-chloroethoxy-
U078Ethene, 1,1-dichloro-
U079Ethene, 1,2-dichloro-
U210Ethene, tetrachloro-
U228Ethene, trichloro
U112Ethyl acetate
U113Ethyl acrylate
U238Ethyl carbamate (urethan)
U117Ethyl ether
U067Ethylene dibromide
U077Ethylene dichloride
U359Ethylene glycol monoethyl ether
U115Ethylene oxide
U116Ethylene thiourea
U118Ethyl methacrylate
U119Ethyl methanesulfonate
U114Ethylenebis(dithiocarbamic acid), salts and esters
U120Fluoranthene
U122Formaldehyde
U123Formic Acid
U124Furan
U1252-Furancarboxaldehyde
U1472,5-Furandione
U213Furan, tetrahydro-
U125Furfural
U124Furfuran
U206D-Glucopyranose, 2-deoxy-2(3-
methyl-3-nitrosoureido)-
U126Glycidylaldehyde
U163Guanidine, N-methyl-N-nitro-N-nitroso
U127Hexachlorobenzene
U128Hexachlorobutadiene
U130Hexachlorocyclopentadiene
U131Hexachloroethane
U132Hexachlorophene
U243Hexachloropropene
U133Hydrazine
U086Hydrazine, 1,2-diethyl-
U098Hydrazine, 1,1-dimethyl-
U099Hydrazine, 1,2-dimethyl-
U109Hydrazine, 1,2-diphenyl-
U134Hydrofluoric acid
U134Hydrogen fluoride
U135Hydrogen sulfide
U096Hydroperoxide, 1-methyl-1-phenylethyl-
U1162-Imidazolidinethione
U137Indeno[1,2,3-cd]pyrene
U1901,3-Isobenzofurandione
U140Isobutyl alcohol
U141Isosafrole
U142Kepone
U143Lasiocarpine
U144Lead acetate
U145Lead phosphate
U146Lead subacetate
U129Lindane
U163MNNG
U147Maleic anhydride
U148Maleic hydrazide
U149Malonitrile
U150Melphalan
U151Mercury
U152Methacrylonitrile
U092Methanamine, N-methyl
U029Methane, bromo-
U045Methane, chloro-
U046Methane, chloromethoxy-
U068Methane, dibromo-
U080Methane, dichloro-
U075Methane, dichlorodifluoro-
U138Methane, iodo-
U119Methanesulfonic acid, ethyl ester
U211Methane, tetrachloro-
U153Methanethiol
U225Methane, tribromo-
U044Methane, trichloro-
U121Methane, trichlorofluoro-
U211Methane, trichlorofluoro-
U0364,7-Methanoindene, 1, 2, 3, 4, 5, 6, 7, 8, 8-octachloro-3a,4,7,7a-tetrahydro-
U154Methanol
U155Methapyrilene
 1,3,4-Metheno-2H-cyclobuta[cd]pentalen-2-one, 1, 1a, 3, 3a, 4, 5, 5, 5a, 5b, 6-decachlorooctahydro-U247
U247Methoxychlor
U154Methyl alcohol
U029Methyl bromide
U1861-Methylbutadiene
U045Methyl chloride
U156Methyl chlorocarbonate
U226Methyl chloroform
U1573-Methylcholanthrene
U1584,4'-Methylenebis(2-chloroaniline)
U068Methylene bromide
U080Methylene chloride
U159Methyl ethyl ketone
U160Methyl ethyl ketone peroxide
U138Methyl iodide
U161Methyl isobutyl ketone
U162Methyl methacrylate
U1614-Methyl-2-pentanone
U164Methylthiouracil
U010Mitomycin C
U0595,12-Naphthacenedione, (8S-cis)- 8-acetyl-10-[(3-amino-2, 3, 4-trideoxy-alpha-
L-lyxo-hexopyranosyl) olyl]-7, 8, 9, 10-tetrahydro-6, 8, 11-trihydroxy-1-methoxy-
U1671-Naphthalenamine
U1682-Naphthalenamine
U026Naphthalenamine, N,N-bis(2-chloroethyl)-
U165Naphthalene
U047Naphthalene, 2-chloro
U1661,4-Naphthalenedione
U2362,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethyl-
(1,1'-biphenyl)-4,4'-diyl)]- bis(azo)bis(5-amino-4-hydroxy)-, tetrasodium salt
U2791-Naphthalenol, methylcarbamate
U1661,4-Naphthoquinone
U167alpha-Naphthylamine
U168beta-Naphthylamine
U169Nitrobenzene
U170p-Nitrophenol
U1712-Nitropropane
U172N-Nitrosodi-N-butylamine
U173N-Nitrosodiethanolamine
U174N-Nitrosodiethylamine
U176N-Nitroso-N-ethylurea
U177N-Nitroso-N-methylurea
U178N-Nitroso-N-methylurethane
U179N-Nitrosopiperidine
U180N-Nitrosopyrrolidine
U1815-Nitro-o-toluidine
U1931,2-Oxathiolane, 2,2-dioxide
U0582H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide
U115Oxirane
U126Oxirane carboxyaldehyde
U041Oxirane, (chloromethyl)-
U182Paraldehyde
U183Pentachlorobenzene
U184Pentachloroethane
U185Pentachloronitrobenzene
See F027Pentachlorophenol
U1861,3-Pentadiene
U161Pentanol, 4-methyl
U187Phenacetin
U188Phenol
U048Phenol, 2-chloro-
U039Phenol, 4-chloro-3-methyl
U081Phenol, 2,4-dichloro-
U082Phenol, 2,6-dichloro-
U052Phenol, methyl
U132Phenol, 2,2'-methylenebis[3,4,6-trichloro-
U411Phenol, 2-(1-methylethoxy)-, methylcarbamate
U101Phenol, 2,4-dimethyl-
U170Phenol, 4-nitro-
See F027Phenol, pentachloro-
See F027Phenol, 2,3,4,6-tetrachloro-
See F027Phenol, 2,4,5-trichloro-
See F027Phenol, 2,4,6-trichloro-
U150L-Phenylalanine, 4-[bis(2-chloroethyl)amino]-
U145Phosphoric acid, lead salt
U087Phosphorodithioic acid, O,O-diethyl-, S-methyl ester
U189Phosphorus sulfide
U190Phthalic anhydride
U1912-Picoline
U179Piperidine, 1-nitroso
U192Pronamide
U1941-Propanamine
U1111-Propanamine, N-nitroso-N-propyl
U1101-Propanamine, N-propyl-
U066Propane, 1,2-dibromo-3-chloro-
U149Propanedinitrile
U171Propane, 2-nitro-
U027Propane. 2,2'-oxybis[2-chloro-
U1931,3-Propane sultone
See F027Propanoic acid, 2-(2,4,5-trichlorophenoxy)
U2351-Propanol, 2,3-dibromo, phosphate (3:1)
U1401-Propanol, 2-methyl-
U0022-Propanone
U0072-Propenamide
U084Propene, 1,3-dichloro-
U2431-Propene, 1,1,2,3,3-hexachloro-
U0092-Propenenitrile
U1522-Propenenitrile, 2-methyl-
U0082-Propenoic acid
U1132-Propenoic acid, ethyl ester
U1182-Propenoic acid, 2-methyl-, ethyl ester
U1622-Propenoic acid, 2-methyl-, methyl ester
U373Propham
U411Propoxur
U387Prosulfocarb
U194N-Propylamine
U083Propylene dichloride
U196Pyridine
U191Pyridine, 2-methyl
U179Pyridine, nitroso-
U1644(1H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-thioxo-
U180Pyrrolidine, 1-nitroso
U200Reserpine
U201Resorcinol
U202Saccharin and salts
U203Safrole
U204Selenious acid
U204Selenium dioxide
U205Selenium sulfide
U015L-Serine, diazoacetate (ester)
See F027Silvex
U206Streptozotocin
U103Sulfuric acid, dimethyl ester
U189Sulfur phosphide
See F0272,4,5-T
U2071,2,4,5-Tetrachlorobenzene
U2081,1,1,2-Tetrachloroethane
U2091,1,2,2-Tetrachloroethane
U210Tetrachloroethylene
See F0272,3,4,6-Tetrachlorophenol
U213Tetrahydrofuran
U214Thallium (I) acetate
U215Thallium (I) carbonate
U216Thallium (I) chloride
U217Thallium (I) nitrate
U218Thioacetamide
U410Thiodicarb
U153Thiomethanol
U244Thioperoxydicarbonic diamide, tetramethyl
U409Thiophanate, methyl
U219Thiourea
U244Thiram
U220Toluene
U221Toluenediamine
U223Toluene diisocyanate
U328o-Toluidine
U353p-Toluidine
U222o-Toluidine hydrochloride
U389Triallate
U0111H-1,2,4-Triazol-3-amine
U2271,1,2-Trichloroethane
U228Trichloroethylene
U121Trichloromonofluoromethane
See F0272,4,5-Trichlorophenol
See F0272,4,6-Trichlorophenol
U404Triethylamine
U2341,3,5-Trinitrobenzene
U1821,3,5-Trioxane, 2,4,6-trimethyl-
U235Tris(2,3-disbromopropyl) phosphate
U236Trypan blue
U237Uracil mustard
U176Urea, N-ethyl-N-nitroso
U177Urea, N-methyl-N-nitroso
U043Vinyl chloride
U248Warfarin & salts, when present at concentrations of 0.3% or less
U239Xylene
U200Yohimban-16-carboxylic acid, 11, 17-dimethoxy-18-[3, 4, 5-trimethoxybenzoyl) oxy]-, methyl ester
U249Zinc phosphide, when present at concentrations of 10% or less