Record Display for the EPA National Library Catalog

RECORD NUMBER: 44 OF 65

OLS Field Name OLS Field Data
Main Title Water Quality Analysis of Eutrophication for the Patuxent River Upper Watershed, Anne Arundel, Prince George's, and Howard Counties, Maryland.
CORP Author Maryland Dept. of the Environment, Baltimore.; Environmental Protection Agency, Philadelphia, PA. Region III.
Year Published 2007
Stock Number PB2013-107239
Additional Subjects Water quality ; Eutrophication ; Maryland ; Ecology ; Watersheds ; Nutrients ; Sediments ; Phosphorus ; Pollutants ; Dissolved oxygen ; Water Quality Limited Segments(WQLSs) ; Patuxent River Upper Watershed(Maryland) ; Prince George's County(Maryland) ; Howard County(Maryland)
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2013-107239 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/19/2013
Collation 17p
Abstract
Section 303(d) of the federal Clean Water Act (CWA) and the U.S. Environmental Protection Agency (EPA)s implementing regulations direct each state to identify and list waters, known as water quality limited segments (WQLSs), in which current required controls of a specified substance are inadequate to achieve water quality standards. This list of impaired waters is commonly referred to as the 303(d) list. For each WQLS, the state is to either establish a Total Maximum Daily Load (TMDL) of the specified substance that the waterbody can receive without violating water quality standards, or demonstrate that water quality standards are being met. The Patuxent River Upper watershed (basin code 02131104) was identified on the States 1996 list of WQLSs as impaired by nutrients (1996), sediments (1996) and impacts to biological communities (2002). In 2004, an impoundment within the watershed, Cash Lake, was listed as impaired for mercury. This document, upon EPA approval, addresses the nutrient impairment in the non-tidal portion of the Patuxent River Upper watershed. Other impairments within the basin will be addressed at a future date.