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Final Lower Passaic River Commercial
Navigation Analysis [July 2010]
This document presents the current status of
commercial navigation use on the Lower Passaic River.
The previous two drafts (March 2007 and December 2008)
have been updated to reflect input provided by
commercial users of the navigation channel. To review
this report, please
click here.
EPA Signs Agreement with Companies to Remove
Major Source of Dioxin from the Lower Passaic River
A momentous agreement between EPA, Occidental
Chemical and Tierra Solutions calls for the most
significant removal of contaminated material from the
Passaic in history. The settlement, announced June 23,
2008 at a park overlooking the river, involves the
removal of nearly half of the dioxin that has
contaminated sediment in the Passaic. It requires
Occidental and Tierra Solutions to remove 200,000 cubic
yards of dioxin-laden material from the portion of the
river directly in front of the Diamond Alkali Superfund
site in downtown Newark.
Click here to view the press release,
click here to view the removal agreement, and
click here to view the fact sheet.
Sampling Activities to Support the Early
Action Evaluation
A sampling event has been planned to gather data to
support the Empirical Mass Balance Model in the FFS.
Attached are the work plan documents that describe the
sampling. Please click here to download the
Quality Assurance Project Plan (QAPP)/Field Sampling
Plan (FSP) Addendum and
Sediment Trap Amendment.
Sampling has been planned in the surface sediments of
River Mile 0 - 1 to fill in data gaps for the Early
Action evaluation. Attached are the work plan documents
that describe the sampling. Please
click here to download the QAPP Modification, figure
and attachment.
Sampling and lab experiments are being planned to
determine Passaic River sediment erosion rates using a
device named "Sedflume". Erosion rates will be used in
sediment transport modeling to characterize sediment
stability or the potential for sediments to move.
Click here to download the QAPP Modification.
Draft Focused Feasibility Study (FFS) [June, 2007]
The Focused Feasibility Study (FFS) evaluates a range
of alternatives that might be implemented to control the
sediments of the lower eight miles of the Passaic River.
A draft FFS is being reviewed by the Remedial Options
Work Group. The files that comprise the draft FFS can be
downloaded and reviewed by clicking on the links below:
Draft FFS Executive Summary
Draft FFS Executive Summary and Text
Draft FFS Figures and Tables
Draft FFS Appendix A Conceptual Site Model
Draft FFS Appendix B Sediment TBCs and PRGs
Draft FFS Appendix C Risk Assessment
Draft FFS Appendix D Empirical Mass Balance Model
Draft FFS Appendix E Engineering Memoranda
Draft FFS Appendix F Navigation Studies
Draft FFS Appendix G Cap Erosion and Flood Modeling
Draft FFS Appendix H Dredged Material Management
Assessments
Draft FFS Appendix I Dredging Volume Estimates
Draft FFS Appendix J Cost Estimates
On June 27, 2007, the Remedial Options Work Group
heard an overview of the draft FFS. The files that
comprise the overview can be downloaded and reviewed by
clicking on the links below:
Remedial Options Workgroup Presentation -
Introduction.pdf
Remedial Options Workgroup Presentation - CSM and
EMBM.pdf
Remedial Options Workgroup Presentation - Risk.pdf
Remedial Options Workgroup Presentation -
Engineering.pdf
Note that the due date for comments from the work
group recently was extended to August 16, 2007 from the
date shown in the presentations.
On May 7, 2008, the Remedial Options Work Group met
to hear an update on work being done to address comments
on the draft FFS. The discussion focused on how the
remedial alternatives would be updated (click
here for the presentation).
Proposed Plan
The Proposed Plan identifies the partner agencies'
proposed cleanup method, based on the alternatives
evaluated in the Focused Feasibility Study. The Proposed
Plan will be available for public comment after the
Focused Feasibility Study is completed.
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