EWOCDS Compound List

EWOCDS COMPOUNDS

May 2004

EWOCDS
Acronym
COMPOUNDCAS NUMBER MCL (ppb)
Drinking Water

VC

Vinyl Chloride75-01-42
V-21,1-Dichloroethene75-35-4 7
M-2Dichloromethane75-09-2 5
TV-2trans-1,2-Dichloroethene156-60-5100
CV-2cis-1,2-Dichloroethene 156-59-270
M-3Chloroform 67-66-3**
A-TRI1,1,1-Trichloroethane71-55-6 200
M-4 Carbon Tetrachloride56-23-5 5
BenzeneBenzene71-43-2 5
EDC1,2-Dichloroethane107-06-25
TCETrichloroethene79-01-65
PDC 1,2-Dichloropropane78-87-55
BDCM Bromodichloromethane75-27-4**
TolueneToluene108-88-3 1000
B-TRI1,1,2-Trichloroethane79-00-55
PERC Tetrachloroethene127-18-45
DBCM Dibromochloromethane124-48-1**
CL-BenChlorobenzene108-90-7 100
ET-BenEthylbenzene100-41-4700
BR-3Bromoform75-25-2**
Xylene(s)Dimethylbenzene(s) (m, o, and p xylenes)1330-20-710,000
Styrene Styrene100-42-5100
1,4Ben1,4-DichloroBenzene
(p-dichlorobenzene)
106-46-7 75
1,2Ben1,2-dichlorobenzene
(o-dichlorobenzene)
95-50-1600
1,2,4-Ben1,2,4-TrichloroBenzene 120-82-170

 · Maximum Contaminant Level   MCL

 · Part per billion   ppb

 · Early Warning Organic Compound Detection System - EWOCDS

 · This list represents the compounds analyzed by EWOCDS since 1/1/00.

 · Maximum contaminant level values listed above are obtained from the EPA's web site on Drinking Water Regulations, last updated 7/02. For more information see http://www.epa.gov/safewater.mcl.htm

**These compounds are trihalomethanes and are regulated in drinking water at a maximum combined total of 100 ppb.

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