DTSC initiates fifth 5-year review on former Union Carbide site

DTSC initiates fifth five-year review on effectiveness of remedy at former Union Carbide site in Richmond
The blue square marks the former Union Carbide Corporation site at 1215 Harbour Way South. (Google Maps)

The California Department of Toxic Substances Control (DTSC) has initiated a Five-Year Review of the effectiveness of the final remedy at the former Union Carbide Corporation site located at 1215 Harbour Way South, Richmond, California 94804. The Port of Richmond owns this approximately two-acre paved site. The site was previously used as a transfer station for various products stored in tanks.

A Land Use Covenant restricts certain land uses on the site due to contaminants found in soil and groundwater from previous use. The contaminants remaining in soil and groundwater are volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), and industrial solvents. The remedy was to cover the site with an asphalt cap to contain the contaminants and monitor groundwater annually to ensure off-site migration does not occur. The groundwater monitoring over the past 25 years has shown that contamination is diminishing significantly through natural processes and that the contaminants are not migrating off-site.

The purpose of a Five-Year Review is to determine whether the remedy implemented at the site continues to be protective of human heath and the environment. The methods, findings, and conclusions will be documented in the Five-Year Review report.

Project related documents can be found at:

DTSC Berkeley Regional Office
700 Heinz Avenue
Berkeley, CA 94710
(510) 540-3800 (call for an appointment)

You may also access project information on the DTSC EnviroStor website: http://www.envirostor.dtsc.ca.gov/public (select “Site/Facility Search”, enter “07990001” in the “Site Code” field and click “Get Report”)

For more information or to report concerns about this site that may be helpful to the Five-Year review process, contact Karina Navarro, Project Manager at [email protected].

All information in this post is by the DTSC Berkeley Regional Office