b INDIANA WATER QUALITY REPORT 2000 IDEM/34/02/001/2000 TABLE OF CONTENTS TABLE OF CONTENTS ................................................................................................ I EXECUTIVE SUMMARY .............................................................................................. 1 BACKGROUND............................................................................................................ 5 Introduction ................................................................................................................................................................ 5 Water Pollution Control Program ............................................................................................................................ 5 Watershed Approach................................................................................................................................................ 5 Water Quality Standards Program ........................................................................................................................... 8 Point Source Program .............................................................................................................................................. 9 Nonpoint Source Control Program ........................................................................................................................ 11 Coordination with Other Agencies......................................................................................................................... 14 Cost/ Benefit Assessment.......................................................................................................................................... 15 Cost Information.................................................................................................................................................... 15 Benefits Information .............................................................................................................................................. 16 Special State Concerns and Recommendations...................................................................................................... 18 SURFACE WATER ASSESSMENT ............................................................................19 Current Surface Water Monitoring Program........................................................................................................ 19 Plan for Achieving Comprehensive Assessments................................................................................................... 21 Assessment Methodology and Summary Data ....................................................................................................... 22 List of Impaired Waters ......................................................................................................................................... 24 Rivers and Streams Water Quality Assessment..................................................................................................... 25 Designated Use Support......................................................................................................................................... 25 Causes/Stressors and Sources of Impairment of Designated Uses......................................................................... 27 Lake Water Quality Assessment ............................................................................................................................. 30 Designated Use Support......................................................................................................................................... 30 Clean Lakes Program............................................................................................................................................. 32 Wetlands Assessment................................................................................................................................................ 37 Development of Wetland Water Quality Standards............................................................................................... 37 Integrity and Extent of Wetland Resources ........................................................................................................... 37 Wetland Protection Activities ................................................................................................................................ 38 Wetland Compensatory Mitigation: An Ongoing Study........................................................................................ 39 Public Health/ Aquatic Life Concerns .................................................................................................................... 42 Drinking Water Source Assessment........................................................................................................................ 44 GROUND WATER ASSESSMENT..............................................................................45 Introduction to Indiana Ground Water.................................................................................................................. 45 - i - INDIANA WATER QUALITY REPORT 2000 IDEM/34/02/001/2000 Ground Water Data for the 2000 305(b) Reporting Cycle.................................................................................... 46 Major Sources of Ground Water Contamination.................................................................................................. 46 Ground Water Protection Programs ...................................................................................................................... 50 Hydrogeologic Settings for the 2000 Report........................................................................................................... 54 Summary of Contamination Sites ........................................................................................................................... 55 Ground Water for Drinking Water Monitoring Data........................................................................................... 58 Future 305(b) Reporting Cycles .............................................................................................................................. 62 REFERENCES ............................................................................................................63 APPENDIX A 1998 LIST OF IMPAIRED WATERBODIES .........................................65 APPENDIX B LAKE STATUS AND TRENDS ............................................................71 APPENDIX C STREAM ASSESSMENTS...................................................................75 APPENDIX D METADATA .........................................................................................92 List of Figures Figure 1 Monitoring Locations 1996 – 1998 ..........................................................................................7 Figure 2 Section 319 Projects.............................................................................................................11 Figure 3 State Revolving Fund Loans 1992 - 1999..............................................................................17 Figure 4 Monitoring Strategy Report Years .........................................................................................19 Figure 5 Upper Wabash Aquatic Life Use Support Estimation Methods...............................................27 Figure 6 Mitigation sites by Application Year.......................................................................................39 Figure 7 Mitigation Site Status ............................................................................................................40 Figure 8 Mitigation Site Distribution.....................................................................................................41 Figure 9 Aberdeen Mitigation Site.......................................................................................................42 Figure 10 Map of Hydrogeologic Settings ........................................................................................49 Figure 11 Hydrogeologic Monitoring Networks for State Pesticide Management Plan........................53 List of Tables Table 1 Summary of Use Support - Waterbodies Reported 1998 through 2000....................................1 Table 2 Atlas .......................................................................................................................................5 Table 3 Section 319 Grants ...............................................................................................................12 Table 4 Watersheds Reported this Year ............................................................................................21 Table 5 Criteria for Use Support Assessment ....................................................................................23 Table 6 Summary of Fully Supporting, Threatened and Impaired Waters - Streams ...........................25 Table 7 Individual Use Support Summary - Streams ..........................................................................26 Table 8 Aquatic Life Use Support by Basin - Streams ........................................................................26 Table 9 Summary of National and State Causes Impairing Waters – Streams....................................28 Table 10 Summary of National and State Sources Impairing Waters – Streams...................................29 Table 11 Summary of Fully Supporting, Threatened