Ashumet Valley Plume

For the most recent information on the Ashumet Valley plume, please review the Plume Cleanup Team (PCT) meeting minutes.

Fact Sheets

Ashumet and Johns Pond Update, February 2006

Ashumet and Johns Pond Update, August 2004
Ashumet Valley Groundwater Plume Summary, April 2005
John's Pond Update, May 2005
Ashumet Pond Update, May 2005
Ashumet Valley Groundwater Plume Summary, April 2004
Ashumet Valley Groundwater Plume Summary, March 2003
Final Groundwater Cleanup Decisions, November 2001
Ashumet Valley Groundwater Plume and Source Update, February 1999

Ashumet Pond Geochemical Barrier Project
Ashumet Pond Geochemical Barrier Project

Maps
Ashumet Valley Plume Map, February 2005 - pdf
Ashumet Valley Plume Map, March 2004
Ashumet Valley Plume Map, January 2003
Ashumet Valley Plume Map, April 2002
Ashumet Valley Plume Map, October 2001
Ashumet Valley Plume Map, January 2000
Ashumet Valley Before & After Plume Map, 1996 vs. 2002

News Releases
8/17/2005 - Public Meeting on Results of Iron Barrier Installation in Ashumet Pond
7/15/2005 - Public Comment Period and Public Meetings Planned for Three Groundwater Sites