Deactivation & Decommissioning

Apogee offers in depth deactivation services to structures as well as subsurface testing and remediation.

Sample Project

Apogee performed disconnection of utilities, abatement, demolition, soil remediation and site stabilization of multiple buildings and slabs in an area close in proximity to the vibration sensitive Advanced Light. Most buildings were constructed during and post WWII as research and/or support facilities.

The project was divided into several phases with each phase addressing structure demolition, removal of contaminated soils associated with the structures, and stabilization of the affected areas. Soil removal was performed to address existing subsurface contamination. The demolition of the subject buildings is part of an overall plan to remediate and redevelop the area of the Lab.

The government prepared an environmental analysis and checklist document to support California Environmental Quality Act (CEQA) coverage for the project under the 2006 Long-Range Development Plan and Environmental Impact Report which were subsequently adopted for the project.

Scope included buildings and slabs of previously demolished buildings:

  • A 7,716 gsf concrete shear wall building that was built in 1950 for the Chemistry Division. It housed laboratories and research offices.
  • A 11,808 gsf wood structure that was built between 1943 – 1948. It originally housed the XC Calutron Magnet and was enlarged to accommodate the Horton Sphere. Its current usage was for shops, laboratories, and storage.
  • A 339 gsf metal building that was built in 1960. It was used as a storage facility.
  • A 993 gsf wood framed barracks type warehouse structure built in 1947.
  • A 995 gsf wood framed barracks type warehouse structure. It was used as shops, offices, and storage space built in 1948.
  • A 5,039 gsf building had corrugated metal panel cladding, with a metal gable roof and concrete floor built in 1943 and housed a quarter scale model of the Bevatron.
  • A 516 gsf pre-manufactured Butler Building.

The scope of work included deactivating utilities such that the buildings are cold and dark prior to abatement activities. Residual induced radioactivity was present in some of the buildings along with additional hazardous materials including lead (e.g., paint, dust, caulk), asbestos, silica, beryllium, PCB, violative organic compounds, and mercury.

Core Capabilities


Program & Project Management


Logistics Management



Nuclear Non-Proliferation


Nuclear Environmental Management


Warehousing & Transportation



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