El Sobrante Landfill

The El Sobrante Landfill is owned and operated by Waste Management, Inc. For more information regarding the site, please visit their website.  As part of the Second El Sobrante Landfill Agreement, approved by the Board of Supervisors in 1998, the Administrative Review Committee and the Citizen Oversight Committee were formed. 

  • Administrative Review Committee (ARC)
  • Citizen Oversight Committee (COC)

El Sobrante Landfill Contact List

If you have any questions or concerns regarding the El Sobrante Landfill, click here for a list of responsible contacts/agencies for the operation and oversight of the landfill.

Air Emissions/Water Quality

Annually, USA Waste/WMI prepares several reports for various regulatory agencies addressing air emissions and water quality related to landfill operations.  While most of these reports are included in the appendices for the landfill's Annual Report's, the reports are often outdated due to the Annual Report review process. 

Current air quality and water resource reports can be accessed here: 

Air Emission Reports

Water Quality Reports

COC Newsletters

The newsletter is prepared quarterly and provides updates on the landfill, as well as other solid waste/recycling related topics.

    2020                2021              2022       

 1st Quarter    1st Quarter     1st Quarter

 2nd Quarter   2nd Quarter    2nd Quarter

 3rd Quarter    3rd Quarter      3rd Quarter

 4th Quarter    4th Quarter      4th Quarter