Building 4056 SWMU
This page describes the RCRA (chemical) cleanup of the Building 4056 solid waste management unit (SWMU).
The area known as the 4056 Landfill served as a landfill in the 1960’s receiving excavated soil from the 4056 excavation, SPTF, and Building 4020. Some concrete and asphalt were deposited in the 4056 Landfill. Adjacent to the landfill area was a drum storage area.
RFI sampling has been conducted in the area. Although no radiological constituents were expected, radiological screening was conducted prior to the RFI sampling. All debris was removed during the RFI sampling was screened for radiological constituents. No radiological contamination was found during the investigation. Some asbestos containing material was removed during the RFI sampling and disposed of in a off-site Class I landfill.
Groundwater in the area is impacted and is being monitored as part of the Santa Susana Field Laboratory groundwater investigation.
DOE is working with the DTSC to complete the chemical investigation and closure activities.
