Final TMDLs Approved by EPA: Manokin River

The Manokin River is located in Somerset County, Maryland. It drains directly to the Chesapeake Bay roughly 4.5 miles due east of South Marsh Island. The River is approximately 15 miles in length, from its confluence with the Bay to the upper reaches of the headwaters.

The Manokin River (02130208) was identified on the State’s 1996 list of Water Quality Limited Segments (WQLSs) as impaired by nutrients (nitrogen and phosphorus), fecal coliform, and suspended sediments. Subsequent investigation determined that nitrogen and biochemical oxygen demand are the dominant causes of high algal levels and low dissolved oxygen concentrations. The report available below establishes two TMDLs for the Manokin River: one for nitrogen and one for biochemical oxygen demand.  A fecal coliform TMDL was completed in 2005. The suspended sediments will be addressed separately.

TMDLs of Nitrogen
 and Biochemical Oxygen Demand (BOD)
 for the Manokin River in Somerset County, MD

(Approved on February 13, 2001)

EPA's Decision Letter EPA's Decision Letter
Main Report man_main_fin.pdf (217 KB)
Appendix A man_appxa_fin.pdf (286 KB)
Technical Memorandum man_techmemo_fin.pdf (18 KB)
Comment Response Document man_crd_fin.pdf (30 KB)

Contact Information

Please direct questions or comments concerning this project to Maryland's TMDL Program at (410) 537-3818.