Bethune Middle School Soil Cleanup
Summary
SCH Number
2024020771
Public Agency
Los Angeles Unified School District
Document Title
Bethune Middle School Soil Cleanup
Document Type
NOE - Notice of Exemption
Received
Posted
2/21/2024
Document Description
The Project entails the implementation of a cleanup plan for polychlorinated biphenyls (PCBs) impacted soil, which includes excavation of impacted soil and disposal of impacted soil located in the landscaped courtyard area as a part of the Bethune MS Americans with Disabilities Act (ADA) Improvement Project. The Los Angeles Unified School District Board of Education approved the Bethune MS ADA Improvement Project's budget of $8,598,851 on November 13, 2018. The Soil Cleanup portion of the ADA Improvement Project is estimated to cost approximately $500,000.
Contact Information
Name
Christy Wong
Agency Name
Los Angeles Unified School District
Job Title
CEQA Project Manager
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Los Angeles
Counties
Los Angeles
Regions
Southern California
Cross Streets
W 69th Street and Main Street
Zip
90003
Total Acres
15.35
State Highways
I-110
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 30 - CEQA Guidelines Section 15330
Reasons for Exemption
The Project entails the implementation of a cleanup plan for polychlorinated biphenyls impacted soil; excavation of impacted soil; and disposal of impacted soil located in the landscaped courtyard area. Based on the site characterization data, a cleanup plan has been developed for the Site. The cleanup plan includes the following elements:
• Excavation and off-site disposal of soils with total PCB concentrations > 50 milligrams per kilogram.
• Excavation of soil underlying the courtyard area to a minimum depth of 2 feet below finished grade, except in three areas where shallower excavation is necessary to protect existing infrastructure.
• Additional excavation of soil to accommodate tree planting holes for the courtyard renovation.
• Verification sampling of the excavation to document PCB concentrations in soil remaining in place.
• Construction of an engineered protective barrier consisting of colored geotextile filter fabric and a minimum of two feet of compacted soil or compacted soil and pavement. The engineered protective barrier will eliminate future contact with PCB-impacted soil remaining in place within the courtyard footprint.
• Implementation of land use controls to ensure that the engineered protective barrier remains intact and to prohibit future residential use of the property.
The cleanup plan identifies best management practices designed to limit potential short-term risks (e.g., the exposure of onsite workers to COCs during soil excavation activities) through the proper use of institutional controls, such as engineering
controls, security measures, personal protective equipment (PPE), and adherence to established health and safety procedures, including the application of water spray to suppress fugitive dust emissions during the excavation, the proper handling, transportation and disposal of impacted soil, and enforcing speed limits at the Project site.
County Clerk
Los Angeles
Attachments
Notice of Exemption
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