Record Display for the EPA National Library Catalog


Main Title Total Maximum Daily Loads of Polychlorinated Biphenyls in Northeast River, Tidal Fresh Segment, Cecil County, Maryland.
CORP Author Maryland Dept. of the Environment, Baltimore.; Environmental Protection Agency, Philadelphia, PA. Region III.
Year Published 2009
Stock Number PB2013-107024
Additional Subjects Water quality ; Polychlorinated biphenyls ; Rivers ; Maryland ; Clean Water Act ; Drinking water ; Fishes ; Natural resources protection ; Regulations ; Water pollution control ; Total maximum daily loads(TMDLs) ; Cecil County(Maryland)
Library Call Number Additional Info Location Last
NTIS  PB2013-107024 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 66p
Section 303(d) of the federal Clean Water Act and the U.S. Environmental Protection Agencys (US 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 (WQSs). 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 WQSs, or demonstrate that WQSs are being met (CFR 2007). TMDLs are established to determine the pollutant load reductions needed to achieve and maintain WQSs. A WQS is the combination of a designated use for a particular body of water and the water quality criteria designed to protect that use. Designated uses include activities such as swimming, drinking water supply, fish and shellfish propagation and harvest, etc. Water quality criteria can be either narrative statements or numeric values designed to protect the designated uses. Criteria may differ among waters with different designated uses.