Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Total Maximum Daily Load of Sediment in the Little Patuxent River Watershed, Howard and Anne Arundel Counties, Maryland.
CORP Author Maryland Dept. of the Environment, Baltimore.; Environmental Protection Agency, Philadelphia, PA. Region III.
Year Published 2011
Stock Number PB2013-109452
Additional Subjects Total maximum daily load ; Sediments ; Ecology ; Watersheds ; Nutrients ; Sediments ; Phosphorus ; Pollutants ; Dissolved oxygen ; Water Quality Limited Segments(WQLSs) ; Howard County(Maryland) ; Anne Arundel County(Maryland)
Library Call Number Additional Info Location Last
NTIS  PB2013-109452 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/17/2014
Collation 73p
Currently in Maryland, there are no specific numeric criteria that quantify the impact of sediment on the aquatic life of nontidal stream systems. Therefore, to determine whether aquatic life is impacted by elevated sediment loads, MDEs Biological Stressor Identification (BSID) methodology was applied. The BSID identifies the most probable cause(s) for observed biological impairments throughout MDs 8-digit watersheds by ranking the likely stressors affecting a watershed using a suite of physical, chemical, and land use data. The ranking of stressors was conducted via a risk-based, systematic, weight-of-evidence approach. The risk-based approach estimates the strength of association between various stressors and an impaired biological community. The BSID analysis then identifies individual stressors (pollutants) as probable or unlikely causes of the poor biological conditions within a given MD 8-digit watershed and subsequently concludes whether or not these individual stressors or groups of stressors are contributing to the impairment (MDE 2009a).