Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Water Quality Analysis of Heavy Metals for the Loch Raven Reservoir Impoundment in Baltimore County, Maryland.
CORP Author Maryland Dept. of the Environment, Baltimore.; Environmental Protection Agency, Philadelphia, PA. Region III.
Year Published 2003
Stock Number PB2013-107871
Additional Subjects Water quality ; Metals ; Water reservoirs ; Maryland ; Aquatic organsims ; Clean Water Act ; Coliforms ; Implementation ; Monitoring ; Nutrients ; Regulations ; Sediments ; Streams ; Toxicity ; US EPA ; Water pollution control ; Loch Raven Reservoir ; Baltimore County(Maryland)
Library Call Number Additional Info Location Last
NTIS  PB2013-107871 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/19/2013
Collation 20p
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 Loch Raven Reservoir (basin code 02-13-08-05), located in Baltimore County, MD, was identified on the States list of WQLSs as impaired by heavy metals (1996 listing), nutrients (1996 listing), suspended sediments (1996 listing), fecal coliform (2002 listing), evidence of biological impacts (2002 listing), polychlorinated biphenyls (PCBs) (2002 listing) and methylmercury (2002 listing). The heavy metal, nutrient, suspended sediment and PCB impairments were listed for the impoundment, and the biological and fecal coliform 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 heavy metals and the designated uses supported by those criteria are being met in the Loch Raven Reservoir. A water quality analysis (WQA) of heavy metals for the Loch Raven Reservoir impoundment was performed using recent water column and sediment toxicity data.