Reference Source

large quantity generator (LQG)

For large quantity generator (LQG), authority is Washington Ecology (WAC 173-303); quantity threshold is 2,200 pounds or more of dangerous waste; acute waste threshold is More than 2.2 pounds of toxic extremely hazardous waste and/or acute hazardous waste, recorded from its source on 2026-08-11.

Authority
Washington Ecology (WAC 173-303) our reading
Generator category
large quantity generator (LQG) verified
Quantity threshold
2,200 pounds or more of dangerous waste verified
Acute waste threshold
More than 2.2 pounds of toxic extremely hazardous waste and/or acute hazardous waste verified
Sourceecology.wa.gov
Verified
Review by
DatasetHazardous waste generator categories — federal vs California vs Washington thresholds and obligations

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

You are considered a large quantity generator (LQG) if you generate: • 2,200 pounds or more of dangerous waste, OR • More than 2.2 pounds of toxic extremely hazardous waste and/or acute hazardous waste, OR • More than 220 pounds of spills of toxic extremely hazardous waste and/or acute hazardous waste.

ecology.wa.gov, retrieved 2026-08-11

Source

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