Total Maximum Daily Load of Sediment in the Evitts Creek Watershed, Allegany County, Maryland

Final TMDLs Approved by EPA: Evitts Creek

The Evitts Creek watershed is located in the North Branch Potomac River Sub-basin within Maryland. The watershed area covers 19,600 acres in Allegany County, Maryland and 39,800 acres in Bedford County, Pennsylvania. The watershed drains from the northeast in Bedford County, Pennsylvania to the southwest in Allegany County, Maryland, just southeast of Cumberland, Maryland. Due to the steep terrain, geologic structure, and rock units, the drainage patterns of the sub-watersheds have headwaters on steep slopes.

The Maryland Department of the Environment (MDE) has identified the waters of Evitts Creek (basin number 02141002) on the State’s 303(d) List submitted to the EPA by MDE as impaired by low pH (1996), nutrients (1996 and 1998), sediments (1996), and impacts to biological communities (2006).  The designated use of Evitts Creek is Use IV-P (Recreational Trout Waters and Public Water Supply) for the mainstem only and Use I (Water Contact Recreation and Protection of Aquatic Life) for all other tributaries. The document available below establishes a TMDL of sediment in Evitts Creek to allow for the attainment of the above mentioned designated uses. The objective of the sediment TMDL established in the document is to ensure that there will be no sediment impacts affecting aquatic health, when aquatic health is evaluated based on Maryland’s biocriteria, thereby establishing a sediment load that supports the Use I/IV-P designation for the Evitts Creek watershed. The watershed sediment load includes the potential effect for water clarity and erosional and depositional impacts, thus accounting for all of the sediment impacts that indicate a sediment impairment per the Maryland 303(d) listing methodology. 

A Water Quality Analysis (WQA) to address the low pH listing has been approved by the EPA (2005).  Also, a TMDL to address the 1998 nutrients listing for Lake Habeeb, an impoundment of the Evitts Creek watershed, was approved by the EPA (2000).  The 1996 listing for nutrients was addressed in 2010 and the listing impacts to biological impairments was addressed in 2012. 

 

Total Maximum Daily Load of Sediment in the Evitts Creek Watershed, Allegany County, Maryland

(Approved on January 16, 2007)

EPA's Decision Letter EPA's Decision Letter
Main Report TMDL_evittscreek_main_final.pdf (802KB)
Comment Response Document CRD_evittscreek_final.pdf (8KB)

 

Contact Information

Please direct questions or comments concerning this project to Maryland's TMDL Program at (410) 537-3572.

 

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