Confidential Auto Wrecking Facility

Client: Confidential

Year: 2024 - 2025

Location: Columbia Slough, Oregon

Features:

  • Groundwater investigation to assess potential contaminant discharge

  • Upland stormwater source control evaluation

  • Surface soil contamination removal and slope reconfiguration

  • Regulatory permitting and compliance oversight

  • Installation of security fencing and replanting of restored slope

Project Summary

Central Engineering Services (CES) was retained to coordinate site investigation and cleanup actions under regulatory oversight to obtain a No Further Action Letter and settle liabilities associated with sediment contamination adjacent to the site. The project focused on evaluating groundwater impacts, addressing potential contaminant discharge, and implementing site remediation measures to restore environmental integrity while ensuring compliance with local and federal regulations.

Scope of Work: CES will be conducting a sitewide groundwater investigation to evaluate potential impacts and contaminant discharge into the Columbia Slough. The project will include upland stormwater source control evaluations, permitting, localized contaminated soil removal, slope stabilization, and ecological restoration.

Key Activities:

  • Conduct extensive groundwater sampling and analysis to determine contaminant levels and migration pathways

  • Evaluate and implemented stormwater source control measures to prevent further contamination

  • Excavate impacted soil and debris from the slope area, improving structural stability and environmental safety

  • Coordinate all permitting activities, including obtaining approvals for bank restoration and site remediation

  • Provide ongoing consultation and reporting to ensure compliance with regulatory agency requirements

Results: CES’s expertise and proactive approach will facilitate a comprehensive environmental solution for the auto-wrecking facility. Their longstanding relationships with regulatory agencies and strategic planning will result in positive project outcomes, ensuring regulatory compliance and environmental protection. CES’s efforts will lead to a stabilized slope, improved site conditions, and progress toward obtaining a No Further Action Letter.