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Level 1 Alert lasting longer than 20 minutes or with odors
Notification Only - Flaring incident at Martinez Refining Company in Martinez that may be Seen by the surrounding community.
September 27, 2023, 10:21 am

Hazardous Materials Commission


  • To protect and promote the health, safety, and well-being of Contra Costa residents as they are affected by hazardous materials and hazardous waste.
  • To provide and promote a forum for building consensus on environmental issues affecting Contra Costa residents related to hazardous materials and hazardous waste.
  • To provide recommendations to the Board of Supervisors and the Board's respective Committees and Commissions regarding policies concerning the storage, use, and management of hazardous materials and hazardous waste as they affect health, safety, and the environment, including land-use planning and economic effects.


The Hazardous Materials Commission was established in 1983 by the Contra Costa County Board of Supervisors. Its charge is to develop policy recommendations for hazardous materials and wastes and advise the Board, local elected officials, and county and city staff.

Recommendations to the Board of Supervisors


All meetings are open to the public.
For information please call Michael Kent, at 925-250-3227 or email


  • The Operations Committee oversees the Commission's organizational business, provides guidance to county department programs and management, and addresses public education and communication issues.
  • The Planning and Policy Development Committee provides technical assistance on the update of the land use ordinance and other long-term policy and planning issues.