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Work in Area 1

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Supplemental Remedial Investigations

Under the terms of an agreement with the USEPA reached in February 2007, Georgia-Pacific LLC and Millennium Holdings, LLC began a new series of investigations of the Kalamazoo River’s fish, sediment, floodplain soils, and surface water, as well as groundwater in certain areas. The information collected during these investigations will be used to enhance the extensive database developed over the past 14 years of work at the Kalamazoo River Superfund Site. Since the bankruptcy of Millennium Holdings in January 2009, Georgia-Pacific has continued the investigation work in collaboration with USEPA and the Michigan Department of Natural Resources and Environment (MDNRE).

USEPA divided the Kalamazoo Site into seven distinct areas (see map below), and current plans call for the investigation work to proceed sequentially from the most upstream (Area 1) to the most downstream (Area 7).


USEPA described the primary goals of the supplemental investigations in the Statement of Work that accompanied the February 2007 agreement. The new work is to add to existing information on:

  • the nature and extent of PCBs in sediment, soils, fish, and surface water at the Site
  • any current or potential threats to public health, welfare, or the environment posed by releases or threatened releases of PCBs from the Site
  • the understanding of each Area necessary to develop and evaluate potentially effective cleanup options

To achieve these goals, the new work in each of the seven Areas will include site reconnaissance (evaluation surveys, mapping, field assessments of conditions, etc.) and investigations of soil, sediment, air, groundwater, surface water, and ecological conditions.

Ultimately, the goal of this new phase of work at the Site is to assemble enough data to develop and evaluate a range of cleanup options for each Area of the Site that would be protective of both human health and the environment.

Field work in Area 1 started in September 2007. This effort included multiple phases of investigation, with subsequent phases building on earlier results/information. The Area 1 work is focused on:

  • documenting current PCB levels in sediment in the river and Portage Creek
  • investigating and characterizing specific areas of interest (areas around dams and developed reaches)
  • assessing the impact of the cleanup work in the former Plainwell Impoundment

Ultimately the information gathered will be used to develop an approach for addressing PCBs in Area 1. The Area 1 field work, which was designed to generate supplemental information on PCB concentrations in specific soil and sediment sampling locations, is complete. Georgia-Pacific is now in the process of developing a report of the results, and updating human health and ecological risk assessments for Area 1 (see the map below).

USEPA approved a series of start dates for the supplemental remedial activities in Areas 2 through 7 in early September 2008. These start dates mark the beginning of the planning process, and Georgia-Pacific will submit an Area-specific work plan to USEPA within 90 days of each date listed below.


 

Area 2

Plainwell Dam to Otsego City Dam

July 2, 2010

 

Area 3

Otsego City Dam to Otsego Dam

September 1, 2011

 

Area 4

Otsego Dam to Trowbridge Dam

September 1, 2012

 

Area 5

Trowbridge Dam to Allegan City Dam

September 1, 2013

 

Area 6

Allegan City Dam to Lake Allegan Dam

September 1, 2014

 

Area 7

Lake Allegan Dam to Lake Michigan

September 1, 2015
















The Area-specific work plans will include detailed schedules for sampling and investigation activities that will be implemented subject to USEPA approval. While it is likely that some work will occur simultaneously in multiple Areas, the supplemental efforts will generally proceed from upstream to downstream.

wigglelines

Click on photo to enlarge.

Investigation Areas of the Kalamazoo River Superfund Site


Have a question?

Kalamazoo.Questions@arcadis-us.com

For general project information, contact the Kalamazoo River Project Team at Kalamazoo.Questions@arcadis-us.com.

Kalamazoo.Plainwell@arcadis-us.com

If you have specific questions about the ongoing cleanup project in the former Plainwell Impoundment, contact us at Kalamazoo.Plainwell@arcadis-us.com.


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