Approval of a Class 1* Modification (Closure Plan Modification) to Chevron Chemical Company's Hazardous Waste Facility Permit
Summary
SCH Number
2008128036
Public Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Approval of a Class 1* Modification (Closure Plan Modification) to Chevron Chemical Company's Hazardous Waste Facility Permit
Document Type
NOE - Notice of Exemption
Received
Posted
12/3/2008
Document Description
The closure plan modification request includes eliminating deeper soil samples (3 feet and 6 feet below ground surface), wipe samples from all HWMUs containment areas and chip samples from Vessel 1413 containment area. Instead, Chevron will take soil samples six inches below the containment pads or foundations to determine that hazardous wastes have not been released from the past management practice.
Contact Information
Name
Wei-Wei Chui
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency
Phone
Location
Cities
Richmond
Counties
Contra Costa
Notice of Exemption
Exempt Status
Other
Type, Section or Code
15061(b)(3)
Reasons for Exemption
The soil samples taken from 6" below the containment pads will be compared to the historical soil samples taken in proximity to HWMUs documented in the Chevron reports prepared by its consultant Dames and Moore dated October 29, 1982, titled Subsurface Contamination Assessment, Agricultural Chemicals Plant.
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