Site Reassessment
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Reassessment Links
- Reassessment
Schedule - table of major reports and associated dates.
- Links to Reassessment
Reports - a list of all Reassessment documents available on
this web site.
- Peer
Review - information on the peer review process for the Reassessment,
with links to charges, summary reports, and responses to the reviewers
comments, as available.
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In December 1989, EPA announced its decision to initiate a detailed Reassessment
Remedial Investigation/Feasibility Study (Reassessment RI/FS) of EPA’s
1984 interim No Action decision for the Upper Hudson River sediments. This
was prompted by the five-year review required by CERCLA, technical advances
in sediment dredging and treatment/destruction technologies, as well as
a request by New York State Department of Environmental Conservation (NYSDEC)
for a re-examination of the 1984 decision. The Reassessment RI/FS was divided
into three phases:
- Phase 1, consisting primarily of a review of existing data, was completed
in August 1991.
- Phase 2, which included the collection and analysis of new data as
well as modeling studies and human health and ecological risk assessments
and peer reviews, began in December 1991 and concluded in November 2000.
- Phase 3, also known as the FS, began in September 1998.
The Feasibility Study was released concurrently
with the Proposed Plan for the Hudson River PCBs site in December 2000.
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