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Reportable Quantity

Reportable Quantity (RQ)


Reportable Quantity (RQ) — the quantity of a hazardous substance that triggers reports under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). If a substance exceeds its RQ, the release must be reported to the National Response Center, the State Emergency Response Commission (SERC), and community emergency coordinators for areas likely to be affected.

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