Before you call
What to know before a provider conversation
Keep the area closed as directed and avoid actions that can spread or react with residue. Share facts from outside the affected space.
- Leave an active release or exposure area and call 911 or the responsible authority.
- Do not neutralize, dilute, mix, spray, wipe, sweep, vacuum, or launder unknown residue.
- Do not ventilate or restart HVAC systems in an unsafe or unreleased property without direction.
- Note the incident type, official release status, property or vehicle, affected area, access, and known substance information from a safe location.
- Keep occupants, staff, customers, tenants, children, and pets away until the responsible authority or provider gives direction.


