Record Display for the EPA National Library Catalog

RECORD NUMBER: 22 OF 29

OLS Field Name OLS Field Data
Main Title Water Quality Analysis of Chromium and Lead for the Liberty Reservoir Impoundment in Baltimore and Carroll Counties, Maryland.
CORP Author Maryland Dept. of the Environment, Baltimore.; Environmental Protection Agency, Philadelphia, PA. Region III.
Year Published 2003
Stock Number PB2013-107865
Additional Subjects Water quality ; Chromium ; Lead(Metal) ; Water reservoirs ; Clean Water Act ; Coliforms ; Implementation ; Maryland ; Monitoring ; Nutrients ; Regulations ; Sediments ; Streams ; Toxicity ; US EPA ; Water pollution control ; Liberty Reservoir ; Baltimore County(Maryland) ; Carroll County(Maryland)
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2013-107865 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/19/2013
Collation 17p
Abstract
Section 303(d) of the federal Clean Water Act (CWA) and the U.S. Environmental Protection Agency's (EPA) 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. 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 Liberty Reservoir (basin code 02-13-09-07), located in Baltimore and Carroll Counties, MD, was identified on the States list of WQLSs as impaired by chromium (Cr) (1996 listing), lead (Pb) (1996 listing), nutrients (1996 listing), suspended sediments (1996 listing), fecal coliform (2002 listing), methylmercury (2002 listing) and evidence of biological impacts (2002 listing). The Cr, Pb, nutrients, suspended sediment and methylmercury impairments were listed for the impoundment, and the fecal coliform and biological impairments were listed for the non-tidal streams. This report provides an analysis of recent monitoring data, including hardness data, which shows that the aquatic life criteria for Cr and Pb and the designated uses supported by those criteria are being met in the Liberty Reservoir.