The Clean Water Act (CWA) requires Michigan to prepare a biennial report on the quality of its water resources as the principal means of conveying water quality protection/monitoring information to the United States Environmental Protection Agency (USEPA) and the United States Congress.  The Integrated Report satisfies the listing requirements of Section 303(d) and the reporting requirements of Section 305(b) and 314 of the CWA.  The Section 303(d) list includes Michigan water bodies that are not attaining one or more designated use and require the establishment of Total Maximum Daily Loads (TMDLs) to meet and maintain Water Quality Standards.

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Appendix A1 - 8 and 12 Digit Hydrologic Unit Code (HUC) Basins for the Lower Peninsula

Appendix A2 - 8 and 12 Digit Hydrologic Unit Code (HUC) Basins for the Upper Peninsula

Appendix B1 - Comprehensive list of assessment unit designated use support (HUCs 04010302 - 04050007)

Appendix B2 - Comprehensive list of assessment unit designated use support (HUCs 04060101 - 07070001)

Appendix C - Detail - Detailed List of Assessment units not supporting designated uses and are scheduled for a TMDL (Category 5)

Appendix C - Detailed Groups - Detailed and Grouped List of Assessment units not supporting designated uses and are scheduled for a TMDL (Category 5)

Appendix C - Groups - Grouped List of Assessment units not supporting designated uses and are scheduled for a TMDL (Category 5)

Appendix D1 - 303(d) list modifications - delistings

Appendix D2 - 303(d) list modifications - new listings

Appendix E - Public Comments 

Information Contacts:  Kevin Goodwin, Water Resources Division, 517-335-4185, or e-mail: goodwink@michigan.gov 

Jason Smith, Water Resources Division, 517-373-2758, or e-mail:  smithj18@michigan.gov