Former Angeles Chemicals Interim Remedial Measures Work Plan
Summary
SCH Number
2022080613
Public Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Former Angeles Chemicals Interim Remedial Measures Work Plan
Document Type
NOE - Notice of Exemption
Received
Posted
8/26/2022
Document Description
The Department of Toxic Substances Control (DTSC) approved the Interim Remedial Measures Work Plan (IRMWP) for the Former Angeles Chemical Site (ACC Facility, Site). The IRMWP activities will consist of soil remediation using Thermal Conduction Heating (TCH) and a Soil Vapor Extraction (SVE) to reduce concentrations of volatile organic compounds (VOCs) consisting of tetrachloroethene (PCE) and trichloroethene (TCE) in the soil. The extent of the VOCs has been identified and the remedial action will reduce the potential for their migration to groundwater. The implementation of the TCH combined with SVE was used successfully at an adjacent property to the south with similar contamination under DTSC oversight and therefore has been chosen as a suitable and effective interim remedial measure for the former ACC Facility.
Contact Information
Name
Don Indermill
Agency Name
Department of Toxic Substances Control
Job Title
Project Manager
Contact Types
Lead/Public Agency
Phone
Location
Cities
Santa Fe Springs
Counties
Los Angeles
Regions
Southern California
Zip
90670
Other Location Info
8915 Sorensen Avenue, Santa Fe Springs
Notice of Exemption
Exempt Status
Other
Type, Section or Code
14 CCR, Sec. 15061(b)(3)
Reasons for Exemption
Based on the following reasons, DTSC has determined with certainty that there is no possibility that the activities 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."
The ACC Facility site is listed on the Hazardous Waste and Substances Sites List (Cortese List), however, the IRMWP activities are designed to remediate the site.
2.The Site is in a previously developed area and does not provide habitat value.
3.In addition, the activities will have no potential for a significant impact due to project controls that will be implemented during the project as summarized below.
•A California-state licensed construction contractor will conduct the drilling activities associated with installation of the SVE system. Fieldwork will be conducted following the safety guidelines provided in a site-specific health and safety plan (SSHSP) prepared specifically for the project. The SSHSP was prepared in accordance with guidelines set forth in Title 8 of the California Code of Regulations, Section 5192 and includes but is not limited to project controls for heavy equipment safety operations, air monitoring for on and off-site emissions, personal protective equipment, and controls of open trenches for worker safety as described below.
•Well drilling activities will be conducted by California-licensed contractors in accordance with permits acquired from Los Angeles County. An Authority-to-Construct permit for the SVE system will be acquired from the South Coast Air Quality Management District (SCAQMD). Construction permits will be obtained from the City of Santa Fe Springs Building Department.
•Site security will be established according to the type of operations, potential for exposure to contaminants, and potential for contact with other safety hazards. Site security measures that will protect the construction area and prevent unauthorized access include the following: Access will be controlled by the existing fencing, rolling gate, and structures. Only the construction crew, contractor staff, and authorized personnel will be on the Site during working hours. No unauthorized personnel will be allowed in the controlled areas of the Site. All visitors must have prior approval from the contractor, IO Environmental, and DTSC before being admitted to the Site. All visitors must read and acknowledge the SSHSP and possess documentation that they have the training necessary to enter the active work zone.
•The SVE system will be installed at least 50 feet away from the nearest resident.
•All fieldwork will be conducted according to a SSHSP and only properly trained personnel will be employed. Licensed contractors and transporters will also be used. Prior to trenching, the Underground Services Alert (USA) will be contacted for locating specific pipelines/conduits/electrical/phone/water/sewer etc.
•Vapor discharge from the treatment system will comply with emission standards specified in SCAQMD Rule1166.
•The community surrounding the Site will not be affected because engineering controls will reduce noise and dust levels.