Southern California Edison Lafayette Substation (SCELS)

Summary

SCH Number
2017078441
Lead Agency
Toxic Substances Control, Department of (Department of Toxic Substances Control)
Document Title
Southern California Edison Lafayette Substation (SCELS)
Document Type
NOE - Notice of Exemption
Received

Document Description
Site was purchased by Southern CA Edison in 1966 and was originally part of SCELS and provided access from the substation Babcock Ave. According to the City of Costa Mesa General Plan Land Use Map, the site is designated as Light Industry. Hazardous waste storage data from Costa Mesa Fire Department records indicate that aliphatic hydrocarbons/mineral oil have been stored at the SCELS Site. In addition, mineral oil and herbicides such as Round Up was used at the SCELS Site. During 2011 and 2012, soil gas, soil and groundwater sampling was conducted. Results indicated that Volatile Organic Compounds (VOCs) were found in soil at levels that require cleanup. The proposed project consists of excavation, transport, and off-Site disposal of approx. 300 to 500 cubic yards of contaminated soil. As a contingency, if the soil vapor concentration does not decrease after completing the soil excavation, the installation of a subsurface vapor and methane mitigation system, in accordance with the Final Removal Action Work Plan, will be implemented.

Contact Information
Hossein Nassiri
DTSC
8800 Cal Center Drive
Sacramento, CA 95826-3000

714-484-5384

Location

Cities
Costa Mesa
Counties
Orange

Notice of Exemption

Exempt Status
Other
Type, Section or Code
S:15061(b)(3)
Reasons for Exemption
DTSC has determined with certainty that there is no possibility that the activity in question may have a significant effect on the environment because the project would not result in "a substantial, or potentially substantial, adverse change in any of the physical conditions within the area affected by the Project, including land, air, water, minerals, flora, fauna, ambient noise, and objects of historic or aesthetic significance."
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