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.  The draft Integrated Report was revised to reflect public comments and submitted to the USEPA for review and approval on March 31, 2008.

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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 - Assessment units not supporting designated uses (Categories 4 or 5)
Appendix D - 303(d) list modifications
Appendix E - Crosswalk table for 2006 to 2008 assessment unit transition
Appendix F - Public Comments
Appendix G - Errata

Information Contact:  Sarah LeSage, Water Bureau, 517-241-7931, or e-mail:  lesages@michigan.gov