REGULATIONS|Federal Regulatory Program Lists

List: Maximum Contaminant Levels (Safe Drinking Water Act)
Description
The Safe Drinking Water Act (SDWA) was enacted to protect the quality of drinking water in the United States. SWDA requires the U.S. EPA to establish primary drinking-water regulations for contaminants in public water systems that may have adverse effects on people's health. Such regulations typically include a media quality standard that defines legally allowable concentrations of toxic chemicals, called maximum contaminant levels (MCLs). MCLs are established to be as close to a level that is without known or anticipated adverse health effects as is technically or economically feasible.

All contaminants that may have any adverse health effects and may occur in public water systems are covered by SDWA, but both Congress and the U.S. EPA have found it necessary to establish priorities for developing drinking-water regulations, given the large number of potential contaminants. Following amendments to SWDA passed in 1997, MCLs are established for prioritized candidates on a fixed time schedule.

Reference
EPA, Office of Water. Current Drinking Water Standards.
http://www.epa.gov/safewater/mcl.html
2002 Edition of the Drinking Water Standards and Health Advisories.
http://www.epa.gov/ost/drinking/standards/dwstandards.pdf
 
List of Chemicals
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Chemical Name CAS Registry Number (or EDF Substance ID)
ACRYLAMIDE79-06-1
1,1'-AETHYLEN-2,2'-BIPYRIDINIUM-DIBROMID85-00-7
ALACHLOR15972-60-8
ALDICARB116-06-3
ALDICARB SULFOXIDEEDF-202
ALKYL LEAD COMPOUNDSEDF-171
ALKYL MERCURY COMPOUNDS7439-97-6(Alk)
ANTIMONY7440-36-0
ANTIMONY COMPOUNDSADQ500
ARSENIC7440-38-2
ARSENIC (ORGANIC OR INORGANIC COMPOUNDS)ARF750
ARYL MERCURY COMPOUNDS7439-97-6(Aryl)
ASBESTOS (FRIABLE)1332-21-4
ATRAZINE1912-24-9
BARIUM7440-39-3
BARIUM COMPOUNDSBAK500
BENZENE71-43-2
BENZO(A)PYRENE50-32-8
BERYLLIUM7440-41-7
BERYLLIUM COMPOUNDSBFQ500
BIS(2-ETHYLHEXYL) ADIPATE103-23-1
BIS(2-ETHYLHEXYL)PHTHALATE117-81-7
BROMATE15541-45-4
CADMIUM7440-43-9
CADMIUM COMPOUNDSCAE750
CAMPHECHLOR8001-35-2
CARBOFURAN1563-66-2
CARBON TETRACHLORIDE56-23-5
CHLORAMINE10599-90-3
CHLORDANE57-74-9
CHLORINE7782-50-5
CHLORINE DIOXIDE10049-04-4
CHLORITEEDF-205
CHLOROACETIC ACID79-11-8
CHLOROBENZENE108-90-7
CHLORODIBROMOMETHANE124-48-1
CHLOROFORM67-66-3
CHROMIUM7440-47-3
CHROMIUM (II) COMPOUNDSEDF-223
CHROMIUM (III) COMPOUNDS16065-83-1
CHROMIUM (VI) COMPOUNDS18540-29-9
CIS-1,2-DICHLOROETHYLENE156-59-2
COMBINED RADIUM 226 & 228EDF-206
COPPER7440-50-8
COPPER COMPOUNDSCNK750
2,4-D94-75-7
1,2-DIBROMO-3-CHLOROPROPANE (DBCP)96-12-8
1,2-DIBROMOETHANE106-93-4
2,2-DICHLOR0PROPIONIC ACID75-99-0
2,2-DICHLOROACETIC ACID79-43-6
1,2-DICHLOROBENZENE95-50-1
1,4-DICHLOROBENZENE106-46-7
DICHLOROBROMOMETHANE75-27-4
1,2-DICHLOROETHANE107-06-2
1,1-DICHLOROETHYLENE75-35-4
DICHLOROMETHANE75-09-2
1,2-DICHLOROPROPANE78-87-5
DINITROBUTYL PHENOL88-85-7
ENDOTHALL145-73-3
ENDRIN72-20-8
EPICHLOROHYDRIN106-89-8
ETHYLBENZENE100-41-4
FLUORINE7782-41-4
GLYPHOSATE1071-83-6
HEPTACHLOR76-44-8
HEPTACHLOR EPOXIDE1024-57-3
HEXACHLOROBENZENE118-74-1
1,2,3,4,5,6-HEXACHLOROCYCLOHEXANE (MIXTURE OF ISOMERS)608-73-1
HEXACHLOROCYCLOPENTADIENE77-47-4
HYDROGEN CYANIDE74-90-8
INORGANIC ARSENIC COMPOUNDSEDF-222
INORGANIC LEAD COMPOUNDS1128
INORGANIC MERCURY COMPOUNDSMCZ000
LEAD7439-92-1
LEAD COMPOUNDSLCT000
MERCURY7439-97-6
2-MESYL-2-METHYLPROPIONALDEHYDE O-METHYLCARBAMOYLOXIME1646-88-4
METHOXYCHLOR72-43-5
METHYL MERCURY COMPOUNDSEDF-127
NITRATE14797-55-8
NITRITE14797-65-0
ORGANIC ARSENIC COMPOUNDSEDF-221
ORGANIC LEAD COMPOUNDSEDF-230
ORGANIC MERCURY COMPOUNDSEDF-173
OXAMYL23135-22-0
PENTACHLOROPHENOL87-86-5
PICLORAM1918-02-1
POLYCHLORINATED BIPHENYLS1336-36-3
RADIONUCLIDES1165
RADIUM-22613982-63-3
RADIUM-22815262-20-1
RADON10043-92-2
SELENIUM7782-49-2
SELENIUM COMPOUNDSSBP500
SIMAZINE122-34-9
STYRENE100-42-5
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (TCDD)1746-01-6
TETRACHLOROETHYLENE127-18-4
THALLIUM7440-28-0
THALLIUM COMPOUNDSTEJ500
TOLUENE108-88-3
2,4,5-TP ACID (SILVEX)93-72-1
1,2-TRANS-DICHLOROETHYLENE156-60-5
TRIBROMOMETHANE75-25-2
TRICHLOROACETIC ACID76-03-9
1,2,4-TRICHLOROBENZENE120-82-1
1,1,2-TRICHLOROETHANE79-00-5
1,1,1-TRICHLOROETHANE71-55-6
TRICHLOROETHYLENE79-01-6
URANIUM7440-61-1
VINYL CHLORIDE75-01-4
XYLENE (MIXED ISOMERS)1330-20-7

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