Final Second Five-Year Review Report Fort Ord Superfund Site ...

7.3.2.1 Remedy Selection
The following four remedial alternatives were evaluated for Site 31 in the FS (HLA, 1995f).
• Alternative 1: NoA
• Alternative 2: Excavation, Soil Screening, and Onsite Disposal
• Alternative 3: Excavation and Onsite Disposal
• Alternative 4: Excavation, Soil Screening and Offsite Disposal
Selected Remedy
Alternative 2 is the selected remedy and includes the following components:
• Excavation and segregation of approximately 350 cy of soil and debris containing lead above the
human health based level of concern of 1,860 mg/kg.
• Placement of soil and debris at the OU 2 landfill as part of the foundation layer.
• Deed restrictions.
7.3.2.2 Remedy Implementation
The selected remedy for Site 31 was completed. The post remediation human health risk assessment
concluded that human health risks and hazards are unlikely to be associated with future development of
Site 31 (IT, 1999b). The post remediation ERA concluded that significant risks to ecological receptors
that are exposed to chemicals remaining at Site 31 are not expected (IT, 1999b).
7.3.2.3 System Operations and Maintenance
There are no ongoing activities related to the remedy that require O&M.
7.3.2.4 Progress Since the last Five-Year Review
US Environmental Protection Agency and DTSC concurred no further remedial action is necessary in
letters dated September 20, 1999, and June 28, 2006, respectively. In its letter, the DTSC requested longterm
management in the form of a land use covenant prohibiting excavation, exposure of the soil, or use
of the area as part of any residential development be completed on a section of the site on the north face
of the ravine and under the power transmission lines.
7.3.3 Technical Assessment
7.3.3.1 Question A
Is the remedy functioning as intended by the decision document?
The Army has completed the remedial action at Site 31 in accordance with CERCLA and the RI Sites
ROD, and met the objectives defined in the ROD. Therefore, the remedy is functioning as intended by
the decision document.
Final
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FORMER FT ORD 5YR REVIEW 2007_FINAL United States Department of the Army