1984 -- The U.S. Environmental Protection Agency (EPA) classifies the Upper Hudson River as a Superfund Site; EPA issues a Record of Decision (ROD) for the site rejecting dredging and recommending certain areas on land (known as the "remnant deposits") be capped.

1989 -- EPA begins to re-assess conditions in the Hudson River.

1990s -- GE caps the remnant deposit areas.

1990s -- GE converts an abandoned paper mill located on the riverbank near GE's Hudson Falls plant site into a system of wells to recover PCBs before they reach the river.

Dec. 6, 2000 -- EPA announces a draft remedial plan for the river that includes environmental dredging of PCB-contaminated sediments.

Dec. 6, 2001 -- EPA releases a draft ROD for the Hudson that includes environmental dredging of PCB-contaminated sediments.

Feb. 1, 2002 -- Former EPA Administrator Christine Todd Whitman signs the ROD for the Hudson.

April 9, 2002 -- GE informs EPA that it will cooperate with the Agency to implement its selected remedy for the Hudson; EPA and GE begin negotiating specific agreements.

July 23, 2002 -- GE and EPA sign an agreement whereby GE agrees to conduct the largest sediment sampling program ever undertaken. Ultimately, more than 50,000 sediment samples were collected during the $20 million program.

Dec. 2002 -- EPA begins an evaluation of potential sites near the Hudson River that could support processing and transportation facilities needed for the project.

Aug. 13, 2003 -- EPA and GE sign an agreement whereby GE will complete the engineering design work for both phases of the project.

April 20, 2004 -- EPA approves GE's Preliminary Design Report for the project.

Dec. 15, 2004 -- EPA announces its decision to site project support facilities in Fort Edward and/or Bethlehem, N.Y.

June 23, 2005 -- EPA finalizes its selection of property in the Town and Village of Fort Edward for project support facilities.

August 2005 -- GE completes the Intermediate Design of the Phase 1 project.

Oct. 6, 2005 -- GE and EPA reach an agreement whereby GE will perform EPA's dredging project. The agreement, embodied in a Consent Decree, is lodged in U.S. Federal Court.

Jan. 27, 2006 -- GE begins a process to identify and select contractors to perform the dredging project.

Feb. 14, 2006 -- GE initiates its Hudsonworks program to identify local businesses interested in assisting GE's contractors on the project.

March 21, 2006 -- GE completes the Final Design of the Phase 1 project and issues requests for proposals to firms interested in performing the work.

Nov. 2, 2006 -- U.S. District Court Judge David Hurd approves the Consent Decree signed by GE and EPA whereby GE will perform the dredging project.

Jan. 26, 2007 -- GE submits a work plan to EPA that details how the civil site work and construction of the rail yard will be performed.

Feb. 14, 2007 -- GE announces it has selected the D.A. Collins Construction Co. of Mechanicville (Saratoga County) to perform civil site work at the processing facility site, and another New York State firm, RailWorks Track Services Inc., a subsidiary of RailWorks Corp. of New York City, to build a rail yard at the site.

Feb. 28, 2007 -- GE submits a work plan that details installation of sediment processing equipment at the dewatering facility site.

March 6, 2007 -- EPA approves a work plan that details how the civil site work and construction of the rail yard will be performed, enabling construction to proceed.

April 2, 2007 -- GE selects Sevenson Environmental Services to install processing equipment at the sediment dewatering facility.

April 4, 2007 -- EPA approves a work plan that details installation of sediment processing equipment at the dewatering facility site.

April 9, 2007 -- GE selects MHF Logistical Solutions to operate the rail yard during dredging.

April 12, 2007 -- GE selects The Shaw Group to operate the processing and transportation facilities during dredging.

April 23, 2007 -- GE's contractors begin construction on the site of the processing and transportation facility.

Nov. 15, 2007 -- GE announces an agreement with a waste disposal facility in Texas, Waste Control Specialists, to accept the sediments that will be removed from the Hudson River.

Nov. 16, 2007 -- EPA approves the Phase 2 Dredge Area Delineation Report that specifies the areas to be dredged during Phase 2.

January 25, 2008 -- EPA approves the Phase 1 Final Design Report.

April 23, 2008 -- GE and its contractors achieve major safety accomplishment ? 365 days, involving more than 299,000 personnel hours, without a lost-time incident at the processing facility construction site.