Remedial Action Plan for the Former Mouren-Laurens and Leach Oil Sites Project
3 Documents in Project
Summary
SCH Number
2025020705
Lead Agency
California Regional Water Quality Control Board, Los Angeles Region 4
(RWQCB)
Document Title
Remedial Action Plan for the Former Mouren-Laurens and Leach Oil Sites Project
Document Type
FIN - Final Document
Received
Present Land Use
Light Industrial (IL), Light Manufacturing (M-1) - Industrial Preservation-Green Zone (IP-GZ)
Document Description
The Project is the approval and implementation of the 2021 RAP (Appendix A to the Final IS/ND) submitted to the Los Angeles Regional Water Quality Control Board (RWQCB) by EKI Environment and Water, Inc., (EKI), as updated by the conditions and modifications in the RWQCB’s detailed response letter dated April 22, 2022. The updated RAP addresses the contamination of the MLOC and LOC Sites through a series of actions. The implementation of the updated RAP requires development of various studies and workplans and their implementation under RWQCB oversight after receiving RWQCB approval. The proposed remedial approach will require at least: (1) demolition activities, (2) baseline risk assessment and development of cleanup goals, (3) additional assessment to fill data gaps, (4) on-site structures removal, (5) targeted soil excavation, (6) pilot testing and bench-scale testing, (7) SVE system operation, (8) sparging system operation, (9) in-situ chemical oxidation, (10) monitoring specific to each remedial technology to evaluate efficacy of the remedy (11) monitored natural attenuation, and (12) execution of a deed restriction and environmental covenant. Workplans will be required to collect additional information prior to activating the full-scale remedy.
Contact Information
Name
Adnan Siddiqui
Agency Name
Los Angeles Regional Water Quality Control Board
Job Title
Project Manager
Contact Types
Lead/Public Agency
Phone
Name
Alia Hokuki
Agency Name
Psomas
Job Title
Senior Project Manager
Contact Types
Consulting Firm
Phone
Email
Name
Timothy Cronin
Agency Name
Esq. Mouren-Laurens Oil Company, Inc.
Job Title
Applicant
Contact Types
Project Applicant
Phone
Email
Location
Coordinates
Cities
Compton, Unincorporated area
Counties
Los Angeles
Regions
Unincorporated
Other Location Info
The MLOC Site consists of four parcels at 641, 705, 717, and 719 East Compton Boulevard, for a total area of 3.76 acres (APNs 6137-004-030, 6137-004-031, 6137-004-032, and 6137-004-033). The LOC Site consists of three parcels at 625 East Compton Boulevard and 15006 South Avalon Boulevard, for a total area of 1.24 acres (APNs 6137-004-028, 6137-004-029, and 6137-004-006).
Notice of Completion
State Reviewing Agencies
California Department of Conservation (DOC), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 7 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California Transportation Commission (CATC), Colorado River Board, Office of Historic Preservation, San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Rights
Development Types
Other (Remedial Action Plan (RAP) Implementation)
Local Actions
Remedial Action Plan (RAP) Implementation
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire
Attachments
Final Document(s) [Approved_Certified draft environmental documents]
Disclaimer: The Governor’s Office of Land Use and Climate Innovation (LCI) 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. For more information, please visit LCI’s Accessibility Site.