Pacific Gas and Electric, Colusa, Former Manufactured Gas Plant Explanation of Significant Differences

3 Documents in Project

Summary

SCH Number
2011032032
Lead Agency
Toxic Substances Control, Department of (Department of Toxic Substances Control)
Document Title
Pacific Gas and Electric, Colusa, Former Manufactured Gas Plant Explanation of Significant Differences
Document Type
NOD - Notice of Determination
Received
Posted
8/13/2020

Document Description
The Department of Toxic Substances Control (DTSC) approved an Explanation of Significant Differences (ESD) to the PG& E Colusa, Former Manufactured Gas Plant Remedial Action Plan (RAP) that was approved by DTSC on April 29, 2011. The 2011 RAP did not address contaminated soil where the active electrical equipment was in operation. The electrical substation occupies approximately 10,780 square feet of the eastern portion of the Project Site. PG&E is upgrading and replacing electrical distribution equipment within the electrical substation, which will allow a portion of the substation to be accessible for remedial excavation in the summer/fall of 2020. The additional remedial action within the Substation consists of the excavation and disposal of approximately 2,000 cubic yards of contaminated soil impacted with polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPHs), polychlorinated biphenyls (PCBs), arsenic, and lead. The onsite preparation, excavation, and subsequent backfill operations and restoration are estimated to take approximately 2.5 to 3 months. The Revised Project will be conducted under DTSC oversight in accordance with the DTSC-approved RAP (CH2M 2011) and the Remedial Design Implementation Plan (RDIP) Addendum 1 (ETIC 2020) approved by DTSC.

Contact Information
Karri Peters
Department of Toxic Substances Control
Site Mitigation and Restoration Program 8800 Cal Center Drive
Sacramento, CA 95826

Phone : (916) 255-3614

Location

Cities
Colusa
Counties
Colusa
Other Location Info
105 2nd Street, Colusa, California, 95932

Notice of Determination

Approving Agency
DTSC
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
Department of Toxic Substances Control Site Mitigation and Restoration Program 8800 Cal Center Drive Sacramento, CA 95826 Additional project information is available on EnviroStor: www.envirostor.dtsc.ca.gov/public/

Determinations

(1) The project will have a significant impact on the environment
Yes
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
No
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes

Attachments

Notice of Determination
2011032032_PGE Colusa - CEQA NOD_final (signed)   PDF 136 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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