The Upper Monocacy River watershed was placed on Maryland’s 303(d) list of impaired waters for nutrients and sediments in 1996 and again for fecal bacteria in 2002. A Total Maximum Daily Load (TMDL) for Total Suspended Sediments (TSS) and bacteria were developed and approved in December of 2009 with a subsequent TMDL for phosphorus developed and approved in May of 2013 for the Upper Monocacy River watershed.