Maryland Department of the Environment

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Maryland's Final 2024 Integrated Report of Surface Water Quality

In compliance with Sections 303(d), 305(b), and 314 of the Clean Water Act, the Maryland Department of the Environment (MDE) is pleased to announce that the Final 2024 Integrated Report of Surface Water Quality (IR) was approved by EPA on September 4​, 2024.  


Please contact Becky Monahan at 410-537-3947 or Becky.Monahan@maryland.gov with any questions or to submit a public comment.​​​​


2024 Draft Integrated Report Announcement​​

2024 IR Fact Sheet

2024 Public Meeting Presentation Recording 6/13/24 (Youtube)

2024 Public Meeting Presentation IR Slides 6/13/24

2024 Public Meeting Presentation Vision Slides 6/13/24​​

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​​​Maryland's Final 2024 Integrated Report of
​Surface Water Quality

​EPA's Letter Approving Maryland's 2024 Integrated Report of Surface Water Quality 
​Final 2024 EPA Approval Letter
Assessment List: 


​Final list of all assessment records (Excel spreadsheet)
Final 2024 Assessment List 
Note: An error message will appear.  Click cancel as many times as necessary to access the file in the Excel format.​
​Full Report: 
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Final 2024 Integrated Report including all appendices (Does not include assessment list above)
Final 2024 IR- Full Report
​​​Report Sections:
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Parts A - F (Including Cover Page, Table of Contents, List of Acronyms &​​ Acknowledgements, and Main Report)

Final 2024 IR- Parts A-F

​Appendix A- Organizations that Submitted Water Quality Data

Final 2024 IR- Appendix A​

Appendix B- The 2024 Integrated Report Assessment List
​Final 2024 IR- Appendix B​
Appendix C- 2025-2032 Vision for Clean Water Act Section 303(d) Program 
Final 2024 IR- Appendix C​
​Appendix D- Sulfate Listing Threshold Update
Final 2024 IR- Appendix D​
​Appendix E- Maryland's Chloride Strategy 
​Final 2024 IR- Appendix E​
​Appendix F- Report Sections and Assessments Changed During the Public Comment Period
​Final 2024 IR- Appendix F

References​​​​​​

Final ​2024 IR- References​​

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Maryland Department of the Environment
1800 Washington Blvd
Baltimore, MD 21230