Former General Motors North Tarrytown (Sleepy Hollow) Assembly Plant Site No. C360070

Former General Motors links:

IRM Decision Documents

IRM Decision Document (20 page PDF, 80 KB)
Figures 1 - 4 (5 page PDF, 1079 KB)
Figures 5 - 10 (6 page PDF, 972 KB)
Figures 11 - 15 (5 page PDF, 754 KB)
Figures 16 - 17 (2 page PDF, 337 KB)
Table 1 (5 page PDF, 548 KB)
Tables 2 - 4 (5 page PDF, 313 KB)
Responsiveness Summary (33 page PDF, 270 KB)

Supplemental Sediment Investigation Work Plan - September 2006

Citizen Participation Plan for the East and West Parcel (28 page PDF, 104 KB)
Supplemental Sediment Investigation Work Plan - September 2006 (88 page PDF, 1040 KB) - without Figures

The estimated download time for the following files using a dial up connection is 4-18 minutes:

Sediment Work Plan Figure 1 (1 page PDF, 3.98 MB)
Sediment Work Plan Figure 2 (1 page PDF, 2.37 MB)
Sediment Work Plan Figure 3 (1 page PDF, 3.98 MB)
Sediment Work Plan Figure 4 (1 page PDF, 2.34 MB)
Sediment Work Plan Figure 5 (1 page PDF, 3.98 MB)
Sediment Work Plan Figure 6 (1 page PDF, 1.57 MB)

Remedial Investigation Ongoing

Historical Overview

The site is located along the eastern shore of the Hudson River, occupies approximately 96.5 acres and is bisected by an active passenger and freight rail corridor. The site is the location of a former automobile assembly plant owned and operated by General Motors Corporation since 1914. At the time GM ceased assembly operations in July 1996, the main site features included two large manufacturing buildings. The assembly plant and support buildings were decommissioned and all structures have been demolished, except for two large floor slabs (covering much of the surface area on the west side of the railroad tracks) and a section of a pedestrian bridge over the rail lines.

The current proposal for the development of the West Parcel includes a mixed-use waterfront project with residential units, retail space, office space, an inn, the possibility for an on-site train station (subject to Metro-North approvals) and associated parking, with approximately 30 acres planned as publicly accessible open space.

The possible future uses of the East Parcel could include: the expansion of Devries Park; construction of a new Village Department of Public Works facility; and the expansion of adjacent Philipsburg Manor Restoration.

Project Activities to Date

In November, 2002, General Motors ("GM") and Roseland Property Company ("Roseland") entered into a Voluntary Cleanup Agreement ("VCA") with NYSDEC to investigate and remediate the site property for the purpose of post-remedial development for restricted residential and restricted commercial use ("Lighthouse Landing"). In March, 2005, GM/Roseland completed their transition to the Brownfield Cleanup Program ("BCP").

A number of investigations/corrective measures have been performed by GM and Roseland as documented in the following Reports: Phase I Environmental Site Assessment (1996); Phase II Environmental Site Assessment (1997); Sediment Quality Investigation in the Hudson River near the site (1999); Interim Corrective Measures Completion Report (2001); Phase III Extent of Contamination (2001); and Due Diligence Study (2002).

Remedial Investigation

The Remedial Investigation was initiated in the fall of 2003.

A draft Sediment Evaluation Report was submitted which presents off-site investigation information. Based on the findings of the previous sediment sampling program, additional samples in the River need to be collected. Work plans are currently being developed (summer 2006) with the additional sampling planned for later this year.

A draft Sediment Evaluation Report was submitted which presents off-site investigation information. Based on the findings of the previous sediment sampling program, it was determined that additional samples in the River needed to be collected. Work plans were developed (September 2006) with the additional sampling completed in October 2006. As of this update (January 2007) the data from this sampling was not yet available.

The Preliminary draft Remedial Investigation Report, dated December 2006, has been placed in the document repositories as backup to the proposed Interim Remedial Measure (IRM); the development of the proposed IRM is nearing completion and will be made available for public review in early 2007. The Preliminary draft Remedial Investigation Report presents findings of on-site investigations (East and West Parcels) and will be updated upon completion of IRMs and/or off-site investigation work.

The public is encouraged to review the project documents, which are available at the following repositories:

Warner Library
121 North Broadway
Tarrytown, NY 10591
Phone: (914) 631-7734
Hours: Monday and Thursday 1:00 p.m. - 9:00 p.m.
Tuesday and Wednesday 10:00 a.m. - 6:00 p.m.
Friday 9:00 a.m.- 5:00 p.m.
Saturday 10:00 a.m. - 5:00 p.m.
Sunday 1:00 p.m. - 5:00 p.m.

Sleepy Hollow Village Hall
28 Beekman Avenue
Sleepy Hollow, NY 10591
Phone: (914) 366-5106 (Village Clerk's Office)

NYS Department of Environmental Conservation
Region 3 Office
21 South Putt Corners Road
New Paltz, NY 12561-1696
Attn: Michael Knipfing
Phone: (845) 256-3154
Hours: Monday - Friday 8:30 a.m. - 4:45 p.m.

NYS Department of Environmental Conservation
Central Office
625 Broadway, 12th Floor
Albany, NY 12233-7013
Attn: James Moras
Phone: (518) 402-9812
Hours: Monday - Friday 8:30 a.m. - 4:45 p.m.

Additional Information

Should you have questions regarding the status of the BCP project, at this site, you may contact:

James Moras
Project Engineer
NYS Department of Environmental Conservation
625 Broadway
Albany, New York 12233-7013
Phone: (518) 402-9812

For health related questions, you may contact:

Joseph Crua
NYS Department of Health
547 River Street
Troy, NY 12180
Phone: (800) 458-1158, Ext. 27880