WT02

Toxic dangerous waste designated as dangerous waste (equivalent concentration below 1% but above 0.001%)

Designation

Dangerous Waste

Waste Number

WT02

Regulation

WAC 173-303-104

Toxicity Criteria

Book designation or bioassay: wastes designate by equivalent concentration of toxic constituents. At or above 1% equivalent concentration the waste is extremely hazardous (WT01); between 0.001% and 1% it is dangerous waste (WT02). WAC 173-303-100(5).

WT02 is a state-only designation — the stream may carry federal RCRA codes in addition, or be dangerous waste in Washington alone.

Other Washington state-only codes

WT01Toxic dangerous waste designated as extremely hazardous waste (equivalent concentration >= 1%)WP01Halogenated organic compound persistent dangerous waste, extremely hazardous waste category (HOC >= 1%)WP02Halogenated organic compound persistent dangerous waste, dangerous waste category (HOC 0.01% to 1%)WP03Polycyclic aromatic hydrocarbon persistent dangerous waste, extremely hazardous waste category (PAH >= 1%)WSC2State-only solid corrosive waste WPCBState source-listed PCB wastes per WAC 173-303-9904

Where can a WT02 stream go?

Recognized recovery routes for this waste family, ranked by typical recovery tier. Which route fits depends on your specific stream — composition, volume and region.

Constituent-level recovery review

Medium recovery

Toxicity-designated streams designate by equivalent concentration, not source — a constituent review can reveal recoverable solvent or metal fractions within the designated stream.

40 CFR 261.1(c)(4) — reclamation

Treatment below designation thresholds

Low recovery

Treatment that brings the equivalent concentration below the designation threshold takes the stream out of dangerous waste management, opening conventional routes.

WAC 173-303-100 — designation criteria

These are the typical routes for toxicity criteria. Your stream's actual options depend on its composition and where it sits.

Get the ranked options for your stream

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