Maryland's Draft Combined 2020-2022 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 Draft Combined 2020-2022 Integrated Report of Surface Water Quality (IR) is available for public comment.  The public comment period will run until January 17, 2022.  

The Department is hosting a virtual informational public meeting at 5 pm on January 5, 2022.  Please register for the virtual meeting at​. Any hearing impaired person may request a closed caption option for the meeting by contacting Becky Monahan at or by calling (410) 537-3947 in advance. The meeting will be recorded and a copy can be requested by contacting Matt Stover at Comments or questions may be directed in writing to Matthew Stover, MDE, Water and Science Administration, 1800 Washington Blvd., Baltimore, Maryland 21230, or emailed to, on or before January 17, 2022. After addressing all comments received during the public review period, a final IR will be prepared and submitted to the U.S. Environmental Protection Agency for approval.​ 

Please contact Matthew Stover at with any questions.

2020-2022 IR Fact Sheet​

2020-2022 Draft Integrated Report Announcement​

2020-2022 IR Draft Database (Excel)​

2020-2022 Public Meeting Presentation Recording 1-5-22 (Youtube)​

2020-2022 Public Meeting Presentation Slides 1-5-22 ​


​​​Maryland's Draft Combined 2020-2022 Integrated Report of
​Surface Water Quality

Parts A - E (Including Cover Page, Table of Contents, List of acronyms &​​ Acknowledgements) 


Part F - F.1 (Describes Assessment List Format)

2020_2022IR_Parts_F-F.1_Draft.pdf (190 KB)

Part F.2 Category 2 Waters

20​20_2022IR_Part_F.2_Draft.pdf (1,509 KB)

Part F.3 Category 3 Waters

2020_2022IR_Part_F.3_​Draft.pdf (727KB)

Part F.4 Category 4a Waters

2020_2022IR_Part_F.4_Draft.pdf (1,924 KB)

Part F.5 Category 4b Waters

2020_2022IR_Part_F.5_Draft.pdf​ (493 KB)

Part F.6 Category 4c Waters​​​

2020_2022IR_Part_F.6_Draft.pdf (573 KB)

P​​art F.7 Category 5 ​Waters

2020_2022IR_Part_F.7_Draft.pdf (1,437 KB)

​Part F.​8 Catego​​ry 5s ​Waters​​
2020_2022IR_Part_F.8_Draft.pdf​ (554 KB)

​Part G - Special Assessments

2020_2022IR_Part_G_Draft.pdf (2,415 KB)

​Part H - Assessment Methodologies 2020_2022IR_Part_H_Draft.pdf (254 KB)


2020_2022IR_References_Final.pdf​ (332 KB)​