Perfluorochemical (PFC) Waste Sites

This page contains downloadable quarterly summaries of the work 3M is doing pursuant to the May 2007 Consent Order governing cleanup of the three 3M Perfluorochemicals (PFC) Superfund sites.  This page also serves as a document repository for submittals and other documents required under Superfund regarding the sites, and for documents relating to cleanup of the Washington County Landfill site under the MPCA’s Closed Landfill Program.

Beginning in 2009, progress updates for cleanups at the sites will also be posted here as they become available. For questions about these documents, please contact Ralph Pribble at 651-757-2657 or This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .

3M Quarterly Summaries

• Settlement Agreement and Consent Order, 3rd Quarter 2011 (c-pfc2-11c)
• Settlement Agreement and Consent Order, 2nd Quarter 2011 (c-pfc2-11b)
• Settlement Agreement and Consent Order, 1st Quarter 2011 (c-pfc2-11a)
•  Settlement Agreement and Consent Order, 4th Quarter 2010 (c-pfc2-10d)
•  Settlement Agreement and Consent Order, 3rd Quarter 2010 (c-pfc2-10c)
•  Settlement Agreement and Consent Order, 2nd Quarter 2010 (c-pfc2-10b)
•  Settlement Agreement and Consent Order, 1st Quarter 2010 (c-pfc2-10a)
•  Settlement Agreement and Consent Order, 4th Quarter 2009 (c-pfc2-09d)
• Settlement Agreement and Consent Order, 3rd Quarter 2009 (c-pfc2-09c)
• Settlement Agreement and Consent Order, 2nd Quarter 2009
• Settlement Agreement and Consent Order, 1st Quarter 2009
• Settlement Agreement and Consent Order, 3rd Quarter 2008
• Settlement Agreement and Consent Order, 2nd Quarter 2008
• Settlement Agreement and Consent Order, 1st Quarter 2008
• Settlement Agreement and Consent Order 4th Quarter 2007, Update
• Settlement Agreement and Consent Order 3rd Quarter 2007, Update
• Settlement Agreement and Consent Order 2nd Quarter 2007

3M Cottage Grove Chemolite Site

• General information (available on Minnesota Department of Health's Web site)
• Fact Sheet: 3M Cottage Grove Site Proposed Cleanup Plan for PFCs (pfc3-04)
• Minnesota Decision Document (c-pfc3-05)
• Site Documents:
  • Cottage Grove Feasibility Study (file size = 126 MB)
  • Cottage Grove Feasibility Study Work Plan
  • Cottage Grove Remedial Investigation Report (file size = 86 MB)
  • Addendum No. 2 Feasibility Study Report (file size = 88 MB)
    • Appendix A1
    • Appendix A2
    • Appendix A3
    • Appendix A4
    • Appendix A5
    • Appendix A6
    • Appendix B1
    • Appendix B2
    • Appendix C
    • Appendix D
    • Appendix E
    • Appendix F
    • Appendix G
    • Appendix H1
    • Appendix H2
    • Appendix I
  • Interim Response Action Plan for the D1 and D2 Areas (file size = 30 MB, posted 11/6/09) (c-pfc3-06)
  • Remedial Design/Response Action Plan (c-pfc3-07)
  • Water Management Plan (c-pfc3-09) (file size=6 MB, posted 5/4/10)
  •  3M Cottage Grove Construction Completion Report  (c-pfc3-11) (file size=70 MB, posted 9/24/10)

3M Woodbury Site

• General information (available on Minnesota Department of Health's Web site)
• Progress Updates Excavation related to cleanup at the site is scheduled to begin August 28, 2009. Check this link for current updates.
• Site Documents:
  • Addendum 2 to the Feasibility Study (file size = 64 MB)
  • Feasibility Study (file size = 65 MB)
    • Feasibility Study Attachment 1
    • Feasibility Study Attachment 2
    • Feasibility Study Attachment 3
    • Feasibility Study Attachment 4
    • Feasibility Study Attachment 5
    • Feasibility Study Attachment 6
    • Feasibility Study Attachment 7
  • Feasibility Study Work Plan (July 2007) (file size = 2.3 MB)
  • Addendum to the Fluorochemical (FC) Assessment Work Plan (August 2007) (file size = 1.4 MB)
  • Declaration of Restrictions and Affirmative Covenants (file size = 1.6 MB)
  • Hydraulic Evaluation of the Barrier Well Recovery System (file size = 24 MB)
  • Addendum to the Hydraulic Evaluation of the Barrier Well Recovery System (file size = 22 MB)
  • Waterline Evaluation Report (file size = 11 MB)
  • Proposed Cleanup Plan for PFCs
  • Soil Vapor Extraction Work Plan, December 5, 2008
    • Addendum to 3M Woodbury Soil Vapor Extraction Work Plan
  • Minnesota Decision Document
  • Regional Well Test Results
  • Remedial Design Response Action Plan, April 2009 (file size = 21 MB)
  • Request to Reduce Barrier Well Pumping Rates — 3M Woodbury Site March 2010
  •  Construction Completion Report — Former Main Disposal Area, June 2010 (c-pfc3-10) (file size = 128 MB)
  • Construction Completion Report - Former Northeast Disposal Area (c-pfc3-14)
  • 2011 Annual Groundwater Report, Woodbury, MN (c-pfc3-15)

3M Oakdale Site

• General Information(available on Minnesota Department of Health's Web site)
• Site Documents:
  • Oakdale Site Feasibility Study (file size = 50 MB)
  • Oakdale Feasibility Study Work Plan
  • Addendum to the Feasibility Studies for the Oakdale, Woodbury and Cottage Grove Sites, Minnesota
  • Oakdale Remedial Investigation Report
  • Oakdale Proposed Plan (c-s3-06)
  • Minnesota Decision Document
  • Remedial Design Response Action Plan, February 2009 (file size = 20 MB)
  •  Construction Completion Report - Groundwater Extraction and Treatment System/Oakdale Site (c-pfc3-12)
  • Construction Completion Report, 3M Oakdale Site (c-pfc3-16) (file size = 55MB)

Washington County Landfill Site

• General Information(available on Minnesota Department of Health's Web site)
• Progress Updates(This page provides updates on the cleanup of the landfill.  The MPCA’s Remedy Decision Document was signed in June 2008, with preliminary cleanup actions beginning Fall 2008.)
• Site Documents:
  • Remedy Feasibility Assessment, prepared by Short Elliott Hendrickson Inc.
  • Washington County Landfill Containment Remedy Fact Sheet (c-clf2-04)
  • Remedy Decision Document
  • Granular Activated Carbon Filters (c-s1-05)