U.S. Department of Energy
03/04/2026 | News release | Distributed by Public on 03/04/2026 17:49
CX-270923: Knolls Laboratory, Land Disposal Area Corrective Measure Implementation Project
CX-270923: Knolls Laboratory, Land Disposal Area Corrective Measure Implementation Project
The Knolls Laboratory Land Disposal Area (LDA) Corrective Measure Implementation (CMI) Project is being undertaken as a Corrective Measure remedy to remediate soil contaminated with metals and volatile organic compounds.
Office of NEPA Policy and Compliance
March 4, 2026
min minute read time
The Knolls Laboratory Land Disposal Area (LDA) Corrective Measure Implementation (CMI) Project is being undertaken as a Corrective Measure remedy to remediate soil contaminated with metals and volatile organic compounds. The scope of work includes:
- Targeted excavation to remove surface and subsurface soil with chemical concentrations exceeding Unrestricted Use Soil Cleanup Objectives (SCOs) and to remove surficial waste material/debris. Excavated material will be consolidated or disposed offsite.
- Engineered cover system consisting of a combination of vegetated soil and gravel covers, with a minimum 12-inch thickness and finished with vegetation, asphalt, and/or gravel surface coverings.
- A post-remediation groundwater, seep, and surface water quality monitoring program to assess the performance and effectiveness of the corrective measure and collect data for timely remedial decision-making.
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