Final TMDLs Approved by EPA: Centennial Lake

Centennial Lake is an impoundment located near Columbia in Howard County, Maryland.  The impoundment lies on a tributary of the Little Patuxent River, which is in turn a tributary of the Patuxent River.  The Little Patuxent River lies in the Patuxent River Drainage Basin, in Central Maryland.  Centennial Lake was constructed for flood control and recreation.

On the basis of water quality problems associated with nutrients and sediments, Centennial Lake in the Little Patuxent River watershed (02131105) was identified on Maryland’s 1998 list as being impaired.  The document available below establishes Total Maximum Daily Loads (TMDLs) for the nutrient phosphorus and sediments entering Centennial Lake.   


TMDLs of Phosphorus and Sediments
to Centennial Lake, Howard County, MD

(Approved on April 24, 2002)

EPA's Decision Letter

EPA's Decision Letter 

Main Report

centl_main_final.pdf (1593 KB)

Nonpoint Source Technical Memorandum

centl_techmemo_final.pdf (123 KB)

Comment Response Document

centl_crd_final.pdf (154KB)


Contact Information

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