What volume is considered a large spill according to the ERG?

The Emergency Response Guidebook (ERG) identifies a large spill as one that is 55 gallons or more. This threshold is significant as it helps emergency responders assess the potential danger of the spill and the resources required for an effective response. Spills of this volume could lead to environmental contamination, health hazards, and require more extensive protective measures and cleanup efforts compared to smaller spills.

In practice, understanding this classification aids responders in quickly evaluating the situation and determining the necessary next steps, including whether to contain the spill on-site or initiate evacuation procedures and external assistance. The distinctions in spill sizes also influence the level of resources mobilized, the urgency of the response, and the planning for community safety measures. Thus, knowing that a large spill is defined as 55 gallons or more aligns with strategies for effective emergency management.