Remedy Engineering prepared the required Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) site closure documentation for a former small arms firing range located in an environmentally sensitive area of a former military base.  The historic use of the property as a firing range resulted in metal contamination (primarily antimony, lead, and copper) in the surface and shallow soil. The use of dredge fill to create the land beneath the firing range resulted in munitions and explosives of concern (MEC) and radiological items being present in the subsurface soils.  Remedy Engineering prepared a Remedial Investigation / Feasibility Study (RI/FS) to describe the nature and extent of contamination and evaluate remedial alternatives for the site. The scope of work included review and evaluation of multiple previous removal actions conducted by others, data management and evaluation, preparing risk assessments (including human health, ecological, radiological, and MEC assessments), analyzing relevant and appropriate laws and regulations, developing cleanup criteria, and evaluating remedial alternatives to support the future intended reuse.  The findings of the RI/FS supported a recommendation for the implementation of land use controls over a portion of the firing range, and established the basis for transfer of the property for recreational use as a regional park.

Following completion of the RI/FS, Remedy Engineering prepared a Proposed Plan and Fact Sheet to solicit public input on the RI/FS and proposed final remedial decision for the site.  The Proposed Plan and Fact Sheet were mailed to over 900 recipients, and a public meeting was conducted to inform interested parties about the historic activities, cleanup actions, and planned future use of the site.  Remedy Engineering worked with the United States Department of the Navy (Navy) and federal and state regulatory agencies to address all public comments received.

Based on the results of the RI/FS and input received on the Proposed Plan, Remedy Engineering prepared a Record of Decision (ROD) for the Navy.  The ROD documents the implementation of land use controls as the final remedial decision for the site. The ROD was prepared following the Navy’s new Streamlined ROD format, which contains electronic links to historic documents and information.