° PCBs SUPERFUND SITE
Region 2: NJ, NY PR, VI • 290 Broadway, New York, NY 10007
Dredge Area Delineation
Phase 2
Factsheet
January 2008
Highlights
EPA has approved the
Phase 2 Dredge Area
Delineation (Phase 2
DAD), prepared by
General Electric
Company (GE).
Approximately 400
acres are targeted for dredging in Phase 2 with a
sediment volume of 1,531,000 cubic yards (cy)
that contains a mass of 92,800 kg of
polychlorinated biphenyls (PCBs). The average
depth of contamination is less than 3 feet in most
areas, although a few extend to depths of 5 feet
or more. EPA will consider public input received
on the Phase 2 DAD as we move ahead with the
Phase 2 design.
The dredge area delineation process has
produced a dredging project that is substantially
more efficient than was estimated in the cleanup
plan outlined in EPAs 2002 Record of Decision
(ROD). It removes a higher percentage of PCBs
present in the Thompson Island Pool (98%), while
removing much less sediment. In addition, for
River Sections 2 and 3, it is projected to remove
more PCBs than what was estimated at the time
the cleanup plan was selected.
WARREN
COUNTY
1^
ALBANY
COUNTY
Map Index
Phase 2 Dredging Areas 2008
Where will the dredging be done? ~ŁHJ
,.3 DtMID'AMM ^^•=^^^^^•1.111-:
The ROD covers three sections of the Upper Hudson
River: River Section 1 (from the former Fort Edward
Dam to the Thompson Island Dam); River Section 2 (from the Thompson Island Dam to the Northumberland
Dam); and River Section 3 (from the Northumberland Dam to the Federal Dam at Troy).
Continued on Next Page
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Phase 1 dredging will be conducted in two areas of River Section 1: the northern portion of the Thompson
Island Pool and the east channel of Griffin Island (see Maps 1 and 2). All of the Phase 1 dredging will occur
in River Section 1. Phase 2 dredging will take place in River Sections 1, 2, and 3.
How much will be dredged?
The project design has been refined to remove more PCBs while dredging less sediment than originally
estimated in the ROD. In Phase 1 — 263,600 cy of sediment will be dredged that contains 20,300 kg of
PCBs. In Phase 2 — 1,531,400 cy of sediment will be dredged that contains 92,800 kg of PCBs. In total,
about 490 acres of the Upper Hudson River will be dredged, removing 1,795,000 cy of sediments that
contain approximately 113,000 kg of PCBs.
The overall project now targets approximately 113,000 kg of PCBs whereas the ROD indicates that the
chosen remedy would remove 66,300 kg of PCBs. The volume difference is attributable to the finding from
the sediment sampling program that PCB concentrations greater than 1 part per million (ppm) are not as
deep as was estimated at the time the ROD was issued.
Table 1 Comparison of ROD Estimates and Current Design Targets by River Section
ID Estimate
Jment (cy) Mass o
River Section 1
River Section 2
River Section 3
1,492,000
565,000
393,000
36,000
23,600
6,700
esign Targets
jiment (cy) Mass of
939,800
364,000
491 ,000
60,600
28,500
24,000
Table 2 Comparison of ROD Estimates and Current Design Targets by Project Phase
ID Estimate
;ign Targi
Phase 1
Phase 2
150,000-300,000
2,350,000-2,500,000
263,600
1,531,400
20,300
92,800
Approximate total (ROD) 2,650,000 cy sediment/70,000kg PCBs
Approximate total (Design Targets) 1,795,000 cy sediment/113,000 kg PCBs
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How were the dredge areas selected?
The dredge areas were identified using the results of a multi-year sediment sampling program conducted by
GE that began in 2002 and generated more than 50,000 sediment samples taken from the bottom of the
Upper Hudson River. The sampling data allowed EPA and GE to determine the distribution of PCBs in the
sediment, refine estimates of the amount of PCBs in the sediment, and establish river sediment
characteristics (e.g., silt, sand, gravel).
How will the dredge area information be used in the Phase 2 design?
The Phase 2 DAD Report will be used by GE to design phase 2 of the dredging project which includes
preparation of a Phase 2 Intermediate Design Report. This report will be made available to the public
for input.
The dredge areas may be adjusted during design to account for underwater structures (e.g., pipes),
protection of habitats and cultural artifacts, and other design considerations. Any such changes will be
included in the Phase 2 Intermediate and Final Design Reports.
Background
EPA's cleanup plan for the Hudson River PCBs Superfund Site was selected in the Agency's February 2002
ROD for the site. The ROD calls for targeted environmental dredging of PCB-contaminated sediment from
the Upper Hudson River between the former Fort Edward Dam and the Federal Dam at Troy. The primary
goal of the Hudson River PCBs cleanup is to protect people and the environment from unacceptable risks
due to PCB-contaminated sediments in the Upper Hudson River.
The cleanup of the Hudson River is separated into two phases with Phase 1 initially occurring at a reduced
rate and Phase 2 starting at full production only after an evaluation of Phase 1 is made and reviewed by the
public and an independent panel of experts. Extensive monitoring will be done during both phases to ensure
that dredging operations are done safely and that public health is protected at all times. Phase 1 dredge
areas were identified previously through various project design reports available on the project Web site at
www.epa.gov/hudson.
Next Steps
The Phase 2 DAD identified the need for some additional sampling to fill data gaps. This additional work
will be conducted in 2008, with the results to be incorporated into the Phase 2 Intermediate and Final
Design Reports.
EPA will continue the public outreach program for this project. The program includes maintaining the
Hudson River Field Office, providing project information and meeting with riverfront residents living near
the dredging areas.
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WARREN
COUN'
Dewalering Facility.
V
Former Fort
Edward Dam
Loch 7
I
SECTION 1
Lock
SECTION 2
WASHINGTON
COUNTY
SECTION
RENSSELAER
COUNTY
fed'eral Dam
arvft Troy Lock
ALBANY
COUNTY *
LEGEND
— '• Hudson Rlva
— Upper Hudson
River Sections
^™ Locki'Dam
^_ Dredge Areas
Phase 1
Dredge Areas
Phase 2
lndeX
Phase 2 Dredging Areas 2008
0 1 25 2.5
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• •
LEGEND
I^IHudsort River
Dr*dgtAreas
Primary Railroads
Phase 2 Dredging Areas 2008
Lim-ts of Phase
1 Dredging
Major
.•IV.
^
Map 1
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LEGEND
Dr«dg«Ar*li
'Phase 1
•
Primary Railroads
__ Limits of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
1.QOD
.
Map 2
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Upper Hudson Pf!—
Rlvtr ŁJ SECIION i
,
LEGEND
Huds on River Pri m ar» Ral lr«ad j
Or«la.Arui ,_Urol».m,js«
Phase 2 Dredging Areas 2008
Iltulsuti
P|1J"1
1 Dredging
(BOO
.•IV.
^
Map 3
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• •
LEGEND
[«n River Primary Railroads
Dr«tg«Ar*« UtnlH «f ph,«
Ph"a1 1 Dredging
oL,^\ r*a! - Major Roads
rrtase i
•Loch/D>m
Phase 2 Dredging Areas 2008
0 500 1.QOD
.•IV.
^
Map 4
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LEGEND
Hudson River
.
Primary Railroads
„ Lmnts of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
toon
.
Map 5
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• •
LEGEND
Hudson River
Primary Railroads
„ Liniili of Fhas*
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
Hudson
htt»rŁ River
c.no LOOO
.
Map 6
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•
LEGEND
Hudson River
DradgcAreis
•Phasst
Phases
•Lock/Dam
Primary Railroads
. . Limits of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
0 500 ] 000 2,000
•IIJJJJJJJK=^=,IIJJJJJJJJJJJJJJJJJJJ,I
Hudson
Map 7
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• •
LEGEND
CTlHudton RJiwf
"Phase 1
Ruse 2
•Lock/Dam
Primary Railroads
mm Limits of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
1 000 2,000
=^^^^^^
Map 8
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LEGEND
RJiwr
Primary Railroads
„ Limits of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
c.no I.COO
.
Map 9
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14
LEGEND
Hudson River
Dr*dg« Areas
•
Phase 2
•Lock/Dam
Primary Railroads
„ Lmnts of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
1.QOO
,
Map 10
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15
LEGEND
HudfOft River
Dr*dg« Areas
Drtdg* Arus
Phase 2
•
Primary Railroads
„ Linuls of Phase
1 Dredging
- Major Roads
Phase 2 Dredging Areas 2008
f < ft , Hi H k • f U fc I;
0 5DD 1.000
,' M '
^
Map 11
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LEGEND
Hudson River
Dr«dg« Areas
• .
Primary Railroads
„ Limits of Phase
1 Dredging
Phase 2 Dredging Areas 2008
lltulsuti
t Ul<» H» UM II
0 500 1,000
.
Map 12
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LEGEND
Is on River
Dr«dgeArcis
•Phase 1
•
Phase 2
•Lock/Dam
Primary Railroads
„ Linnts of Phase
1 Dredging
Mjjor Roads
Phase 2 Dredging Areas 2008
Iltulsott
0 500 ] 000
'iv
^
Map 13
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LEGEND
i Hudson River
Dr*dgeArcas
Dredge Areas
Phase 2
•
Primary Railroads
„ Linnli of Phase
1 Dredging
Major Roads
Phase 2 Dredging Areas 2008
1.000 ,'iV.-,
Map 14
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.
LEGEND
Hudson River Primary Railroads
^^Dr«5 Urnltt ofPhaio
Ph"a1 1 Dredging
Qr*dg« Ar*as
Phase 2 Dredging Areas 2008
Major Roads
I.OOO ,'iV.',
• Look/D»
Map 15
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For More Information
Visit, call toll-free (1-866-615-6490), or write to the Hudson River Field Office at the address below or log
on to www.epa.gov/hudson. Phase 2 Dredge Area Delineation Report documents are available at the
information repositories located in Glens Falls, Ft. Edward (Hudson River Field Office), Ballston Spa,
Albany, Poughkeepsie, New York City (EPA Region 2 offices), and in Edgewater, New Jersey. Electronic
versions can be found on the EPA project Web site (www.epa.gov/hudson). Copies are available on CD-
ROM by calling the Hudson River Field Office.
EPA Contacts
):• Dave King
Director
Hudson River Field Office
421 Lower Main Street
Hudson Falls, NY 12839
(518)747-4389
king.david@epa.gov
Kristen Skopeck
Public Affairs Specialist
Hudson River Field Office
421 Lower Main Street
Hudson Falls, NY 12839
(518) 747-4389
skopeck.kristen@epa.gov
David Kluesner
Public Affairs Specialist
EPA Region 2 Office
290 Broadway
New York, NY 10007
(212)637-3653
kluesner.dave@epa.gov
The Field Office hours are Monday - Friday 8:00 am - 4:30 pm, with evening hours by appointment. Email hrfo@capital.net.
EPA Regional Public Liaison
EPA Region 2 has designated a public liaison as a point-of-contact for community concerns and questions about the federal Superfund program in New York, New Jersey, Puerto
Rico, and the U.S. Virgin Islands. To support this effort, the Agency has established a 24-hour, toll-free number that the public can call to request information, express concerns, or
register complaints about Superfund. The public liaison for EPA's Region 2 office is George H. Zachos, U.S. EPA, Region 2, 2890 Woodbridge Avenue MS-211, Edison, New Jersey
08837, (732) 321-6621, Toll-free (888) 283-7626.
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