Environmental Health & Safety
Hazardous Materials / Wastes
Chemical Toxicity Characteristics List
(WAC 173-303-090(8)(c))
Any waste containing one or more contaminants with concentrations at or above the Dangerous Waste (DW) threshold shall be designated DW.
Maximum Concentration of Contaminants for the Toxicity Characteristic
DW Number | Contaminant | DW (mg/L) |
---|---|---|
D004 | Arsenic | 5 |
D005 | Barium | 100 |
D018 | Benzene | 0.5 |
D006 | Cadmium | 1 |
D019 | Carbon tetrachloride | 0.5 |
D020 | Chlordane | 0.03 |
D021 | Chlorobenzene | 100 |
D022 | Chloroform | 6 |
D007 | Chromium | 5 |
D023 | o-Cresol 1 | 200 |
D024 | m-Cresol 1 | 200 |
D025 | p-Cresol 1 | 200 |
D026 | Cresol 1 | 200 |
D016 | 2,4-D | 10 |
D027 | 1,4-Dichloroethane | 7.5 |
D028 | 1,2-Dichloroethane | 0.5 |
D029 | 1,1-Dichloroethylene | 0.7 |
D030 | 2,4-Dinitrotoluene 2 | 0.13 |
D012 | Endrin | 0.02 |
D031 | Heptachlor (and its epoxide) | 0.008 |
D032 | Hexachlorobenzene | 0.13 |
D033 | Hexachlorobutadiene | 0.5 |
D034 | Hexachloroethane | 3 |
D008 | Lead | 5 |
D013 | Lindane | 0.4 |
D009 | Mercury | 0.2 |
D014 | Methoxychlor | 10 |
D035 | Methyl ethyl ketone | 200 |
D036 | Nitrobenzene | 2 |
D037 | Pentachlorophenol | 100 |
D038 | Pyridine | 5 |
D010 | Selenium | 1 |
D011 | Silver | 5 |
D039 | Tetrachloroethylene | 0.7 |
D015 | Toxaphene | 0.5 |
D040 | Trichloroethylene | 0.5 |
D041 | 2,4,5-Trichlorphenol | 400 |
D042 | 2,4,6-Trichlorphenol | 2 |
D017 | 2,4,5-TP (Silvex) | 1 |
D043 | Vinyl chloride | 0.2 |
1 If o-, m-, and p-Cresol concentrations cannot be differentiated, the total cresol (D026) concentration is used. The DW level for total cresol is 200 mg/L.
2 Quantitation limit is greater than the calculated regulatory level. The quantitation limit therefore becomes the regulatory level.