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RECORD NUMBER: 4693 OF 4734

OLS Field Name OLS Field Data
Main Title Watershed Report for Biological Impairment of the Jones Falls Watershed in Baltimore City and Baltimore County, Maryland Biological Stressor Identification Analysis Results and Interpretation. Revised Final.
CORP Author Maryland Dept. of the Environment, Baltimore.; Environmental Protection Agency, Philadelphia, PA. Region III.
Year Published 2012
Stock Number PB2013-111051
Additional Subjects Water quality ; Eutrophication ; Maryland ; Ecology ; Watersheds ; Nutrients ; Sediments ; Phosphorus ; Pollutants ; Dissolved oxygen ; Water Quality Limited Segments(WQLSs) ; Potomac River Washington County Watershed(Maryland) ; Washington County(Maryland)
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NTIS  PB2013-111051 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 40p
Abstract Section 303(d) of the federal Clean Water Act (CWA) and the U.S. Environmental Protection Agencys (USEPA) 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. A water quality standard is the combination of a designated use for a particular body of water and the water quality criteria designed to protect that use. For each WQLS listed on the Integrated Report of Surface Water Quality in Maryland (Integrated Report), 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 via a Water Quality Analysis (WQA) that water quality standards are being met. The Jones Falls watershed (basin code 02-13-09-04), located in Baltimore County and Baltimore City, was identified on the States list of WQLSs and listed in the Integrated Report under Category 5 as impaired by chlordane, copper (Cu), lead (Pb), zinc (Zn), nutrients, suspended sediments (1996 listings), fecal coliform, polychlorinated biphenyls (PCBs) in fish tissue, and evidence of impacts to biological communities (2002 listings). The chlordane and PCBs listings are designated for the Lake Roland impoundment while the remaining listings apply to the non-tidal streams. The 1996 nutrients listing was refined in the 2008 Integrated Report and phosphorus was identified as the specific impairing substance. Similarly, the 1996 suspended sediment listing was refined in the 2008 Integrated Report to a listing for total suspended solids. The Jones Falls watershed was de-listed for heavy metals in 2004 following USEPA concurrence with Maryland Department of the Environments (MDE) analysis of heavy metal data collected during 2001-2002, which showed no heavy metals impairment, except for basin code 02-13-09- 04-10-32 where there were indications of Cu. A WQA for basin code 02-13-09-04-10- 32, requesting delisting for Cu, was included as an appendix to Marylands 2008 Integrated Report and approved by USEPA in 2008. TMDLs were approved for chlordane in 2001 and fecal coliform in 2008. A WQA of Zn was completed in 2003.
Supplementary Notes Sponsored by Environmental Protection Agency, Philadelphia, PA. Region III.
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PUB Date Free Form Feb 2012
Category Codes 48G; 57H
NTIS Prices PC A04
Document Type NT
Cataloging Source NTIS/MT
Control Number 129502420
Origin NTIS
Type CAT