January 

Revised Draft Screening Level Ecological Risk Assessment (SLERA) Work Plan for the Tittabawassee River and Associated Floodplains 

• Link to the July 2005 version of the Draft SLERA Work Plan (Appendix J) 

Memo: Dow Response to USEPA Review of Draft SLERA Work Plan (1/17/2006) 

Memo: Dow Response to MDEQ Review of Draft SLERA Work Plan (1/17/2006) 

Revised Draft Baseline Ecological Risk Assessment (BERA) Work Plan for PCDDs and PCDFs in the Tittabawassee River and Associated Floodplains 

• Link to the July 2005 version of the Draft BERA Work Plan (Appendix J) 

Memo: Dow Response to USEPA Review of Draft BERA Work Plan (1/17/2006) 

Memo: Dow Response to MDEQ Review of Draft BERA Work Plan (1/17/2006) 

Revised Quality Assurance Project Plan (QAPP) for the Ecological Risk Assessment of dioxins in the Tittabasassee River and Floodplain 

Revised Final Midland Representative Soils Sampling and Analysis Plan ( Soils SAP) in Support of Bioavailability Study and Dow Cover Letter (1/17/2006) transmitted with Soils SAP    

February 

March 

Notice of Deficiency (NOD) Tittabawassee River and Floodplain Remedial Investigation Work Plan and Midland Area Soils Remedial Investigation Work Plan (3/2/2006) 

Upper Saginaw River Conceptual Scoping Study and Cover Letter (3/31/2006)  **Note, the Scoping Study is too large to place on this web page,  Contact Cheryl Howe from the WHMD at 517-373-9881 if you need a copy of the document.

April 

Dow "Path Forward" Letter (4/10/06) 

DEQ Response to Dow "Path Forward" Letter (4/10/06) 

Detailed Notice of Deficiency (NOD) Tittabawassee River and Floodplain Remedial Investigation Work Plan and Midland Area Soils Remedial Investigation Work Plan (4/13/06) 

DEQ Response to Dow Conceptual GeoMorph Scoping Study for Upper Saginaw River (4/25/06) 

May 

Dow Responses to the MDEQ March 2 and April 13, 2006 Notices of Deficiency (5/1/2006) 

Sampling Approach in Support of Bioavailability Study, Midland Area Soils (5/1/2006) 

Transmittal E-mail and Revised Midland Soils Schedule (5/5/2006)    

June 

GeoMorph Sampling and Analysis Plan, Upper Tittabawassee River (6/1/2006) 

• Text
• Attachment A 
• Attachment B 
• Attachment C 
• Attachment D 
• Attachment E (This file is too large to post) 

Target Analyte List Technical Memorandum, Tittabawassee River and Floodplain (6/1/2006) 

Sampling and Analysis Plan In Support of Bioavailability Study, Midland Area Soils (6/1/2006)    

July 

Final GeoMorph Sampling and Analysis Plan, Upper Tittabawassee River (7/7/2006) 

• Text 
• Attachment A 
• Attachment B 
• Attachment C 
• Attachment D 
• Attachment E (This file is too large to post) 
• Attachment F 
• Attachment G 
• Attachment H 
• Attachment I 

DEQ Approval of GeoMorph Sampling and Analysis Plan, Upper Tittabawassee River (7/12/2006)   

August 

September 

October 

Sediment Trap Study 1 (10/16/2006) 

Sediment Trap Study 2 (10/16/2006)    

November 

December 

Midland Area Soils Remedial Investigation Work Plan (12/1/2006) 

• Cover Letter 
• Text 
• Appendices (**Note, that this is an extremely large file.  Contact Cheryl Howe from the WHMD at 517-373-9881 if you need a copy of the Appendices) 

Tittabawassee River and Upper Saginaw River and Floodplain Soils   Remedial Investigation Work Plan ( 12/1/06) 

• Cover Letter 
• Volume 1 Text 
• Attachment A: Figures (**Note, that this is an extremely large file.  Contact Cheryl Howe from the WHMD at 517-373-9881 if you need a copy of the Attachment)
• Attachment B: Tables 
• Attachment C: Technical Memorandum-Bank Erosion Bed Elevation Study-Tittabawassee River  
• Attachment D: Figures D-1 through D-3 - Land Use Tittabawassee River and Upper Saginaw River 
• Attachment E: Technical Memorandum-In-River, Floodwater, and Turf Mat Sampling and Analysis 
• Attachment F: Historical Timeline-Historical Operations, Chemicals Produced, Waste Management Practices, and Development of Environmental Laws and Regulations 
• Attachment G: Evaluation of Potential Constituents of Concern 
• Attachment H: GeoMORPH Geochemistry Protocol-Tittabawassee River 
• Attachment I: GeoMORPH Sample Design, Calibration and Verification 
• Attachment J: GeoMORPH Overview-Iterative Investigation Process, Tittabawassee and Upper Saginaw Rivers 
• Attachment K: Pilot Corrective Actions Matrix  
• Attachment L: MDEQ Approval Letter Dated July 12, 2006 (GeoMORPH Sampling and Analysis Plan and Quality Assurance Project Plan-Upper Tittabawassee River, Midland, Michigan) 
• Attachment M: Regulatory Checklist, Tittabawassee River and Upper Saginaw River and Floodplain Soils 
• Volume 2 Text 
• Volume 2 Appendices 

Upper Tittabawassee River Reach O Plan and Pilot Corrective Action Plan (12/20/2006) 

DEQ Letter to Dow- Tittabawassee River Interim Response Activities Reach O Plan and Pilot Corrective Action Plan (12/21/2006)