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NPL Partial Site Deletion Narrative

Seneca Army Depot
Romulus, New York

Partial Site Deletion Federal Register Notice: April 28, 2008 (PDF) (4 pp, 189K, About PDF)

On April 28, 2008, EPA deleted a portion of the Seneca Army Depot Activity (SEDA) Superfund site from the National Priorities List (NPL). This partial deletion pertains to all media (surface soils, subsurface soils, structures, surface water, and ground water) within the following two specific parcels of real property located at the SEDA Superfund site, Romulus, New York: Real Estate Parcel 1, except for a portion of this parcel known as SEAD-24; and the entirety of Real Estate Parcel 2. The purpose of the partial deletion of Parcel 1 (except the SEAD-24 portion) and Parcel 2 is to remove uncontaminated and potentially useful property from the NPL, thereby making the land more desirable for re-development.

SEDA encompasses approximately 10,634 acres, includes property owned by the U.S. Department of Army, the Seneca County Industrial Development Agency (SCIDA), the local redevelopment authority, New York State Department of Corrections, U.S. Department of Homeland Security, Seneca County, and private entities. The miliary mission of the site has varied over the years. In 1942, it was activated as the Seneca Ordnance Depot. The Depot was designated for closure in 1995 under the Base Realignment and Closure Act. The Depot's military mission officially ended in 2000. Over the years, various hazardous substances and hazardous wastes were used, generated, stored, or disposed at the site. Numerous studies and investigations have been performed to locate, assess, and quantify the past storage, disposal, and spill areas of hazardous substance at the site. The site was investigated by means of areas of concern which were later designated as Solid Waste Management Units (SWMUs), which are referred to at the site as SEAD-#s. The SWMUs were identified based upon historic information and field investigations and over 100 SWMUs have been identified at the site. One or more SWMUs are located within Parcel 1 and Parcel 2. This partial deletion will remove 368.6 acres from Parcel 1 and 25.2 acres from Parcel 2.

Parcel 1, also known as the Empire Biofuels Redevelopment area, is located midway on the western edge of SEDA. Most of this Parcel did not require remedial investigations under CERCLA. The two areas within Parcel 1 that were investigated under CERCLA are known as SEAD-58 and SEAD-24. SEAD-58 includes two debris disposal areas that have been found to require no active remediation under CERCLA. SEAD-24 is a two-acre area that is not included in the partial deletion and will remain on the NPL.

Parcel 2, also known as the Seneca County Public Safety Building and Jail area, is located along the eastern perimeter of the SEAD site in the southeast quadrant. The parcel encompasses two sub-parcel areas designated as SEAD-50 and SEAD-54, both of which have been remediated. Subsequent sampling of these two areas confirmed that all appropriate CERCLA response actions were performed. However, SEAD-50 and -54 are subject to Institutional Controls (ICs) because they are part of the encompassing Planned Industrial Development (PID) area. A time-critical removal action was performed on Parcel 2 from late 2002 to early 2003 to excavate, remove, and dispose of impacted soil material from SEAD-50/54.

The EPA, with concurrence of the State of New York, has determined that all appropriate CERCLA response actions related to Parcel 1 (except the SEAD-24 portion) and Parcel 2 have been implemented. This partial deletion pertains only to Parcel 1 (except the SEAD-24 portion) and Parcel 2, and does not include any other portions of the site.

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