REGULATIONS|Federal Regulatory Program Lists

List: Priority Pollutants (Clean Water Act)
Description
The federal Clean Water Act (CWA), an amendment to the federal Water Pollution Control Act of 1972, establishes the basic structure for regulating discharges of pollutants into the waters of the United States. Section 307 defines a list of priority pollutants for which the U.S. EPA must establish ambient water- quality criteria (the basis of state water-quality standards) and effluent limitations (rules controlling environmental releases from specific industrial categories based on the "best available technology economically achievable").

The initial list of priority pollutants was based on a 1977 consent decree that settled a legal challenge to the U.S. EPA's program for controlling hazardous pollutants. A relatively small number of revisions to the list have been made by the U.S. EPA administrator since 1977. Decisions to expand the list must take into account the toxicity, persistence, and degradability of the pollutant; the potential presence and the importance of affected organisms in any waters; and the nature and extent of the effect of the toxic pollutant on such organisms.

Reference
EPA, Office of Water. Water Quality Standards Database.
http://oaspub.epa.gov/wqsdatabase/wqsi_epa_criteria.rep_parameter
 
List of Chemicals
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Chemical Name CAS Registry Number (or EDF Substance ID)
ACENAPHTHENE83-32-9
ACENAPHTHYLENE208-96-8
ACROLEIN107-02-8
ACRYLONITRILE107-13-1
ALDRIN309-00-2
ALPHA-ENDOSULFAN959-98-8
ALPHA-LINDANE319-84-6
ANTHRACENE120-12-7
ANTIMONY7440-36-0
AROCLOR 101612674-11-2
AROCLOR 122111104-28-2
AROCLOR 123211141-16-5
AROCLOR 124253469-21-9
AROCLOR 124812672-29-6
AROCLOR 125411097-69-1
AROCLOR 126011096-82-5
ARSENIC7440-38-2
ASBESTOS (FRIABLE)1332-21-4
BENZ(A)ANTHRACENE56-55-3
BENZENE71-43-2
BENZIDINE92-87-5
BENZO(A)PYRENE50-32-8
BENZO(B)FLUORANTHENE205-99-2
BENZO(GHI)PERYLENE191-24-2
BENZO(K)FLUORANTHENE207-08-9
BENZYL BUTYL PHTHALATE85-68-7
BERYLLIUM7440-41-7
BETA-ENDOSULFAN33213-65-9
BETA-LINDANE319-85-7
BIS(2-CHLORO-1-METHYLETHYL) ETHER108-60-1
BIS(2-CHLOROETHOXY)METHANE111-91-1
BIS(2-CHLOROETHYL) ETHER111-44-4
BIS(2-CHLOROISOPROPYL) ETHER39638-32-9
BIS(2-ETHYLHEXYL)PHTHALATE117-81-7
BIS(CHLOROMETHYL) ETHER542-88-1
4-BROMOPHENYL PHENYL ETHER101-55-3
CADMIUM7440-43-9
CAMPHECHLOR8001-35-2
CARBON TETRACHLORIDE56-23-5
4-CHLOR-M-CRESOL59-50-7
CHLORDANE57-74-9
CHLOROBENZENE108-90-7
CHLORODIBROMOMETHANE124-48-1
CHLOROETHANE75-00-3
2-CHLOROETHYL VINYL ETHER110-75-8
CHLOROFORM67-66-3
CHLOROMETHANE74-87-3
2-CHLORONAPHTHALENE91-58-7
2-CHLOROPHENOL95-57-8
4-CHLOROPHENYL PHENYL ETHER7005-72-3
CHROMIUM7440-47-3
CHRYSENE218-01-9
COPPER7440-50-8
CYANIDE57-12-5
DDD72-54-8
DDE72-55-9
DDT50-29-3
DELTA-LINDANE319-86-8
DI-N-OCTYL PHTHALATE117-84-0
DI-N-PROPYLNITROSAMINE621-64-7
DIBENZ(A,H)ANTHRACENE53-70-3
1,2-DIBROMOETHANE106-93-4
DIBUTYL PHTHALATE84-74-2
1,4-DICHLOROBENZENE106-46-7
1,2-DICHLOROBENZENE95-50-1
1,3-DICHLOROBENZENE541-73-1
3,3'-DICHLOROBENZIDINE91-94-1
DICHLOROBROMOMETHANE75-27-4
1,2-DICHLOROETHANE107-06-2
1,1-DICHLOROETHANE75-34-3
1,1-DICHLOROETHYLENE75-35-4
DICHLOROMETHANE75-09-2
2,4-DICHLOROPHENOL120-83-2
1,2-DICHLOROPROPANE78-87-5
1,3-DICHLOROPROPENE (MIXED ISOMERS)542-75-6
DIELDRIN60-57-1
DIETHYL PHTHALATE84-66-2
DIMETHYL PHTHALATE131-11-3
2,4-DIMETHYLPHENOL105-67-9
4,6-DINITRO-O-CRESOL534-52-1
2,4-DINITROPHENOL51-28-5
2,4-DINITROTOLUENE121-14-2
2,6-DINITROTOLUENE606-20-2
1,2-DIPHENYLHYDRAZINE122-66-7
ENDOSULFAN SULFATE1031-07-8
ENDRIN72-20-8
ENDRIN ALDEHYDE7421-93-4
ETHYLBENZENE100-41-4
FLUORANTHENE206-44-0
FLUORENE86-73-7
GAMMA-LINDANE58-89-9
HEPTACHLOR76-44-8
HEPTACHLOR EPOXIDE1024-57-3
HEXACHLORO-1,3-BUTADIENE87-68-3
HEXACHLOROBENZENE118-74-1
HEXACHLOROCYCLOPENTADIENE77-47-4
HEXACHLOROETHANE67-72-1
INDENO(1,2,3-CD)PYRENE193-39-5
ISOPHORONE78-59-1
LEAD7439-92-1
MERCURY7439-97-6
METHANAMINE, N-METHYL-N-NITROSO62-75-9
METHYL BROMIDE74-83-9
N-NITROSODIPHENYLAMINE86-30-6
NAPHTHALENE91-20-3
NICKEL7440-02-0
NITROBENZENE98-95-3
4-NITROPHENOL100-02-7
2-NITROPHENOL88-75-5
PENTACHLOROPHENOL87-86-5
PHENANTHRENE85-01-8
PHENOL108-95-2
PYRENE129-00-0
SELENIUM7782-49-2
SILVER7440-22-4
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (TCDD)1746-01-6
1,1,2,2-TETRACHLOROETHANE79-34-5
TETRACHLOROETHYLENE127-18-4
2,3,4,6-TETRACHLOROPHENOL58-90-2
THALLIUM7440-28-0
TOLUENE108-88-3
1,2-TRANS-DICHLOROETHYLENE156-60-5
TRIBROMOMETHANE75-25-2
1,2,4-TRICHLOROBENZENE120-82-1
1,1,2-TRICHLOROETHANE79-00-5
1,1,1-TRICHLOROETHANE71-55-6
TRICHLOROETHYLENE79-01-6
2,4,6-TRICHLOROPHENOL88-06-2
VINYL CHLORIDE75-01-4
ZINC7440-66-6

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