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| Dow Hazardous Waste Facility Operating License and Corrective Action Information
Contact:
Cheryl Howe 517-373-9881; Al Taylor 517-335-4799
Agency:
Environmental Quality
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Quick References:
On June 12, 2003, the Department of Environmental Quality (DEQ) issued a hazardous waste management facility renewal operating license to The Dow Chemical Company (Dow), Michigan Operations for its treatment, storage, and disposal facility in Midland, Michigan, and related corrective action activities. In addition to on-site corrective action activities, the operating license also addresses major off-site corrective action activities for Midland area soils, the Tittabawassee and Saginaw Rivers and their flood plains, and the Saginaw Bay. Please click on the following documents for additional information regarding the project.
DOW OFFSITE CORRECTIVE ACTION DOCUMENTS:
2008
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April
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DEQ Letter to Dow - Notice to Dow requiring the submittal of work plans for 2008 Interim Response Activities/Pilot Corrective Action Plans for the Tittabawassee River and Saginaw River (4/16/08)
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March
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DEQ/EPA Joint Letter to Dow - Responding to Dow's 2/8/2008 Letter to DEQ that expressed concerns about Dow's working relationship with and between the DEQ and EPA; includes 2/13/2008 EPA letter of support regarding DEQ approval with modifications of the Saginaw River and Bay Scope of Work for the Remedial Investigation Work Plan (3/3/08)
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February
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Dow Letter to DEQ - letter from Dow expressing concerns about the company's working relationship with and between the DEQ and EPA (2/8/08)
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DEQ Letter to Dow - Approval with Modifications of Revised Dow Remedial lnvestigation Scope of Work for the Saginaw River and Floodplain and Saginaw Bay (2/1/08)
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January
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DEQ Letter to Dow - Letter notifying Dow that corrective action work will continue to be conducted under the State hazardous waste program with the U.S. EPA coordinating with the DEQ to provide CERCLA federal removal actions/interim response activity support and other technical assistance, as necessary. Letter also indicates that the DEQ remains open to moving forward with presumptive remedies or other alternate approaches acceptable to the agency in lieu of Dow's proposed Direct Contact Criteria Report process for development of site-specific criteria for remediation of Midland area soils. (1/30/08)
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DEQ Letter to EPA - Letter regarding the direction of the investigation and cleanup of the Tittabawassee River, Saginaw River, Saginaw Bay, and the Midland area (1/17/08)
2007
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December
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November
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DEQ Letter to Dow - Disapproval and Letter of Warning: Direct Contact Criteria Report for Midland Area Soils (11/9/2007)
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October
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Revised Remedial Investigation Scope of Work for the Saginaw River and Saginaw Bay, Michigan (10/15/2007)
- Revised Dow Midland Area Soils Remedial Investigation Work Plan (10/15/2007)
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Cover Letter and Text
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Appendix A - Existing Data Quality and Usability Assessment - Midland Area Soils
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Appendix B - Interim Measures Report - Salzburg Road Area
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Appendix C - Soil Sample Results from Previous Studies
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Appendix D - Development of Target Analyte List
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Appendix E - Human Health Risk Assessment Work Plan Attachments
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Appendix F - Site History Attachments
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Appendix G - Data Evaluation Report in Support of Bioavailability Study, Midland Area Soils (Pre-RI Study Report)
- Dow Direct Contact Criteria Report for Midland Area Soils (10/15/2007)
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Text (Pages 0-124)
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Text (Pages 125-211)
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Text (Pages 212-308)
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Appendix A - Calculation Spreadsheet
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Appendix E-3 - Pilot Study Report: Oral Bioavailability of Dioxins/Furans in Midland and Tittabawassee River Floodplain Soils
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Appendix E-3 (cont) - Follow-Up Study Report: Oral Bioavailability of Dioxins/Furans in Tittabawassee River Floodplain Soil
- Appendix E-3 (cont) - Summary of University of Michigan Dioxin Exposure Study - This appendix is too large to post; it is available for review at the DEQ Lansing and Bay City Offices or it can be provided upon request on CD.
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Work Plan for Exposure Unit Sampling, Middle and Lower Tittabawassee River (10/15/2007) - This is a large file. If it is too large for individuals without high speed Internet to download, it is available for review at the DEQ Lansing and Bay City Offices or it can be provided upon request on CD.
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September
- Draft Current Conditions Report for the Saginaw River, Floodplain, and Bay (9/17/2007)
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August
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DEQ Letter to Dow - Notice of Deficiency; Remedial lnvestigation Scope of Work for the
Saginaw River and Floodplain and Saginaw Bay, Michigan (8/29/2007)
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July
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June
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DEQ Response to EPA Comments on Revised Dow Tittabawassee River and Floodplain and Midland Area Soils Remedial Investigation Work Plans (6/25/2007)
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EPA Comments to the DEQ on Revised Dow Tittabawassee River and Floodplain and Midland Area Soils Remedial Investigation Work Plans (6/7/2007)
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May
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April
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March
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February
- GeoMorph Pilot Site Characterization Report - Upper Tittabawassee River and Floodplain Soils (2/1/2007)
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Submittal Letter from Dow
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Text
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Attachment A
- Study Area - Reaches A Through O, Upper Tittabawassee River
- Reach Overview, Upper Tittabawassee River
- 100-Year Floodplain, Upper Tittabawassee River
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Attachment B - Thalweg/Longitudinal Profile, Tittabawassee River
- Attachment C - 1937 and 2005 Channel Comparison - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
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Attachment D - Sample Location Summary, GeoMorph Site Characterization, Upper Tittabawassee River
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Attachment E - Method Comparability Study Summary, USEPA 1613B and 1613-TRP/RT, GeoMorph Site Characterization, Upper Tittabawassee River
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Attachment F - USEPA Appendix IX Target Analyte List, GeoMorph Site Characterization, Upper Tittabawassee River
- Attachment G - 2006 Aerial Photography and High Resolution Topographic Mapping, Upper Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
- Attachment H - Historic Outfalls, The Dow Chemical Company - Midland, Michigan - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
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Attachment I- Geochemistry Protocol and Results, GeoMorph Site Characterization, Upper Tittabawassee River
- Attachment J - Report on Development of Hydrodynamic Model of the Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
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Attachment K - Conceptual Model of Solids Movement in the Tittabawassee River and Floodplain
- Attachment L - Maximum TEQ by Location Maps, GeoMorph Site Characterization, Upper Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
- Attachment M - Surface TEQ by Location Maps, GeoMorph Site Characterization, Upper Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
- Attachment N - Cross-Sections, GeoMorph Site Characterization, Upper Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
- Attachment O - Fixed-Interval and Random-on-Grid Statistical Comparison and Verification, GeoMorph Site Characterization, Upper Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
- Attachment P - Technical Memorandum, Statistical Calibration and Verification, GeoMorph Site Characterization, Upper Tittabawassee River - Currently, the file size for this attachment is too large to place on this site. However - The attachment is available on the Dow Regulatory Activities - Dioxin and Furan Situation - web page.
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Attachment Q- Preliminary In-Channel Sediment Inventory, GeoMorph Site Characterization, Upper Tittabawassee River
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Attachment R - GeoMorph Site Characterization Data Summary, Upper Tittabawassee River
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Attachment S- GeoMorph Site Characterization Data Summary - Erosion Scar Sampling, Upper Tittabawassee River
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Attachment T
- USEPA Appendix IX Laboratory Report, GeoMorph Site Characterization, Upper Tittabawassee River
- Summary of Site Positives, USEPA Appendix IX, GeoMorph Site Characterization, Upper Tittabawassee River
- Tentatively Identified Compounds, USEPA 8260B, GeoMorph Site Characterization, Upper Tittabawassee River
- Tentatively Identified Compounds, USEPA 8270C, GeoMorph Site Characterization, Upper Tittabawassee River
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January
2006
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December
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Upper Tittabawassee River Reach O Plan and Pilot Corrective Action Plan (12/20/06)
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DEQ Letter to Dow-Tittabawassee River Interim Response Activities Reach O Plan and Pilot Corrective Action Plan (12/21/06)
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Tittabawassee River and Upper Saginaw River and Floodplain Soils Remedial Investigation Work Plan (12/1/06)
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Cover Letter
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Volume 1 Text
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Attachment A: Figures
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Attachment B: Tables
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Attachment C: Technical Memorandum-Bank Erosion Bed Elevation Study-Tittabawassee River
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Attachment D: Figures D-1 through D-3 - Land Use Tittabawassee River and Upper Saginaw River
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Attachment E: Technical Memorandum-In-River, Floodwater, and Turf Mat Sampling and Analysis
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Attachment F: Historical Timeline-Historical Operations, Chemicals Produced, Waste Management Practices, and Development of Environmental Laws and Regulations
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Attachment G: Evaluation of Potential Constituents of Concern
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Attachment H: GeoMORPH Geochemistry Protocol-Tittabawassee River
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Attachment I : GeoMORPH Sample Design, Calibration and Verification
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Attachment J: GeoMORPH Overview-Iterative Investigation Process, Tittabawassee and Upper Saginaw Rivers
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Attachment K: Pilot Corrective Actions Matrix
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Attachment L: MDEQ Approval Letter Dated July 12, 2006 (GeoMORPH Sampling and Analysis Plan and Quality Assurance Project Plan-Upper Tittabawassee River, Midland, Michigan)
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Attachment M: Regulatory Checklist, Tittabawassee River and Upper Saginaw River and Floodplain Soils
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Volume 2 Text
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Volume 2 Appendices
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Midland Area Soils Remedial Investigation Work Plan (12/1/06)
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Cover Letter
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Text
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Appendices(**Note that this is an extremely large file. The WHMD plans to break this file down into smaller segments for faster downloading on the web)
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November
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October
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September
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August
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July
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June
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May
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April
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March
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February
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January
2005
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December
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In addition to the information provided on this web site, copies of these work plans are available for public review at the following locations:
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Grace A. Dow Memorial Library Reference Desk, 1710 West St. Andrews, Midland, Michigan (989-837-3449)
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Zauel (Saginaw Township) Library, 3100 North Center Road, Saginaw, Michigan (989-799-2771)
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DEQ, Waste and Hazardous Materials Division (WHMD), Saginaw Bay District Office, 503 North Euclid, Bay City, Michigan (contact Trisha Peters at 989-686-8025, ext. 8204)
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DEQ, WHMD Office, North Atrium (Lower Level) Constitution Hall, 525 West Allegan, Lansing, Michigan (contact Cheryl Howe at 517-373-9881)
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Dow Tittabawassee River and Floodplain Remedial Investigation Work Plan
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Appendix A- Historical Data Quality and Usability Assessment - Tittabawassee River and Floodplain Remedial Investigation Work Plan
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Appendix B
-Tittabawassee River Floodplain Scoping Study Field Investigation Report and Data Quality Evaluation
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Appendix C
- Dendrogeomorphology Study Update, Tittabawassee River Floodplain Summer 2005 and Geochronology Study Update, Floodplain Soils, Tittabawassee River, Michigan
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Appendix D- Scoping Study Areas 1 and 2 Hydrodynamic Model Development
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Appendix E- Distribution of Furans and Dioxins in Tittabawassee River Sediment
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Appendix F- Furan And Dioxin Distribution in Floodplaing Soils
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Appendix G- Data Quality Objectives for the Tittabawassee River and Floodplain Remedial Investigation
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Appendix H- Sampling and Analysis Plan
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Appendix I- Human Health Risk Assessment Work Plan
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Appendix J- Screening-Level Ecological Risk Assessment and Baseline Ecological Risk Assessment Work Plans
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Appendix K- Tittabawassee River Floodplain Representative Soils Sampling and Analysis Plan in Support of Bioavailability Study
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Appendix L- Public Participation Plan
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Dow Midland Area Soils Remedial Investigation Work Plan
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Updated Quality Assurance Project Plan, Dow Midland Offsite Corrective Action Program
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Updated Field Standard Operating Procedures
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November
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October
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October 18, 2005 Approved Dow Scopes of Work (SOWs) for Midland Area and Tittabawassee River and Floodplain
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September
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August
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July
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June
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May
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Received by the DEQ from Dow on May 31, 2005
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May 31, 2005 Submittal Letter
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May 27, 2005 Draft Preliminary Conceptual Site Model
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Reports for Completed Studies
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Transmittal of Analytical Data from Tittabawassee River Floodwater Samples(Memo dated May 31, 2005 CH2M Hill)
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Dendrogeomorphic Pilot Study, Tittabawassee River Floodplain, Michigan
(May 2005, Limno-Tech, Inc.)
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Geochronology Pilot Study, Floodplain Soils, Tittabawassee River, Michigan
(May 2005, Limno-Tech, Inc.)
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Received by the DEQ from Dow on May 17, 2005
OTHER INFORMATION:
Dow Petition for a Site Specific Treatability Variance from Land Disposal Restrictions - Submitted 10/1/2007 and Revised 1/21/2008
Bioavailability Studies
DEQ Requests to Dow for information and documents concerning the release of dioxins, furans, and other hazardous constituents from Dow's Midland Facility
DEQ/Dow Framework (1/20/05)
Maps and Information
Unapproved Versions of Dow Remedial Investigation Scopes of Work and Interim Response Activities (IRA) Work Plans and DEQ/U.S. EPA Comments
Aquatic Ecological Risk Assessment
Community Involvement
Approved Interim Response Activities (IRA) Under SOWs
IRAs Submitted to DEQ for Review Under SOWs But Not Yet Approved
Please Note: These documents are currently under review and are not yet approved by the DEQ. They are being made available for public information purposes during the DEQ's review process. Upon approval, final approved IRA Work Plans and approval letters will be placed on this website.
Other Work Scopes and Work Plans Submitted Under the SOWs
Related Links
Tittabawassee River Flood Plain Contamination
Operating License Information
Dow Midland Plant Operating License
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