Waterbody Assessments
Indiana’s Integrated Water Monitoring and Assessment Report
Section 305(b) of the Clean Water Act requires the state to assess and report on how well the waters of Indiana support the beneficial uses designated in Indiana’s water quality standards [PDF]. Indiana’s Integrated Water Monitoring and Assessment Report (IR) is developed every two years to fulfill this requirement and describes the condition of Indiana's lakes and streams, the Lake Michigan shoreline, and ground water. The IR is submitted to the U.S. EPA in even-numbered years. In odd-numbered years, the IDEM sends a copy of its Assessment Database to the U.S. EPA as an electronic update.
For more information contact the 305(b)/303(d) Coordinator: (317) 234-1424.
Indiana’s 2008 Integrated Water Monitoring and Assessment Report
- 2008 Integrated Water Quality Monitoring and Assessment Report [DOC]
- Report cover page [DOC] and Appendix title pages [DOC] for printing purposes.
- Appendix A: Indiana’s 303(d) list of Impaired Waters
- Appendix B: Indiana’s Consolidated List of Waterbodies Assessed Pursuant to CWA Section 305(b) Categories 1-5 [XLS]
- Appendix C: Comprehensive Aquatic Life Use Assessments [XLS]
- Appendix D: Metadata and Definitions [DOC]
- Appendix E: IDEM’s 305(b)/303(d) Monitoring, Assessment, Reporting and Listing Schedule [XLS]
- Appendix F: External Data Solicitation Letter [PDF]
- Appendix G: Trophic Status and Trends of Indiana's Lakes [XLS]
- Addendum to Indiana’s IR 2008 Submission: Long Term TMDL Development Schedule [DOC]
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