DSHW-2024-004276

January 22, 2024
John Amato, Project Manager
Refining Business Unit
Chevron Environmental Management Company
324 West El Segundo Blvd. (MO-142)
El Segundo, CA 90245
RE: Wastewater Release Response
Post-Closure Permit Chevron Salt Lake Refinery
UTD092029768
Dear Mr. Amato:
The Division of Waste Management and Radiation Control has completed its review of your letter dated December 15, 2023, which attached areport of the Wastewater Release Response (Report)
prepared by AECOM. The Report includes a summary of the spill responses, soil sampling results, analytical laboratory reports, data validation reports, and statistical analysis. The
Reports indicates that the soil impactsof the impact are below the US Environmental Protection Agency Regional Screen Levels for industrial soil. The Report appears to be acceptable
and is hereby approved.
Please be advised that the spill is not clean closed, and Chevron needs to continue updating and tracking the spill impact in the annual report.
If you have any questions, please contact Hao Zhu by email at [e-mail] or by phone at 801-558-9833.
Sincerely,
Paige Walton, Program Manager
Corrective Action Section
Division of Waste Management and Radiation Control
PW/HZ/wa
c: Angela C. Dunn, MD, MPH, Health Officer, Salt Lake County Health Dept.
Dorothy Adams, Deputy Director, Salt Lake County Health Dept.
Ron Lund, Environmental Health Director, Salt Lake County Health Dept.
Brian Hatch, Health Officer, Davis County Health Department
David W. Spence, Deputy Director, Davis County Health Department
Jay Clark, Environmental Health Director, Davis County Health Department
Lauren Vander Werff, Chevron Salt Lake Refinery (Email) [e-mail]
Brett Mustoe, AECOM (Email) [e-mail]
Wil Pineda, AECOM (Email) [e-mail]
John Amato, Project Manager, Refining Business Unit,
Chevron Environmental ManagementCompany (Email and Hard Copy)[e-mail]