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Concord: Ash/Debris Cleanup Advisory

Last updated: April 24, 2018, 9:41 am

The large structure fire in Concord consisted primarily of construction materials (predominately wood). Residents should avoid direct contact and inhalation of ash/debris that was produced by the fire. Residents may use a mild soap and water to clean up ash/debris. To minimize dust generation, residents should consider lightly dampening ash/debris prior to commencing sweeping activities. Swept up ash/debris may be placed in a standard household trash receptacle. Any towels or cleaning materials should be rinsed in a sink that drains to a sanitation sewer. Residents should avoid washing or sweeping ash/debris into storm drains, as this will result in pollution accumulating in nearby creeks and rivers.


The following Shelter-in-Place procedures are recommended as the best first response after the Safety Sirens are sounded:


  • Go inside your home or the nearest building
  • Bring in pets, if possible
  • Officials at the Fire Department, the Health Department and the Office of Emergency Services agree that in the case of chemical accident, those people who shelter indoors are much safer than those people who remain outside and are possibly exposed to chemicals


  • Close doors and windows
  • Use window and door locks to create a better seal
  • Make sure your vents and fireplace flue are closed
  • Turn off Heating, Ventilating and Air Conditioning


  • Turn on your radio and television for information and further instructions
  • The Community Warning System is designed to provide Contra Costa County-specific information directly to the media.  Public access television and radio stations such as KCBS 740 AM or KGO 810 AM will have ongoing status reports and information
  • Avoid using the telephone unless you have a life-threatening emergency