Volatile Organic Compound Benchmarks Used in the Appendix Graphs
in the NAWQA Summary Reports, 2000 and 2001
(See below for codes and references.)
NAME DRW* RPTUNITS DRWSRC*
======================== === ======== ======
Benzene 5 UG/L MCL
Bromochloromethane 10 UG/L HAL
Bromodichloromethane 100 UG/L MCL
Bromomethane 10 UG/L HAL
1-Chloro-2-methylbenzene 100 UG/L HAL
1-Chloro-4-methylbenzene 100 UG/L HAL
Chlorobenzene 100 UG/L MCL
Chlorodibromomethane 100 UG/L MCL
Chloroethene 2 UG/L MCL
Chloromethane 3 UG/L HAL
1,2-Dibromo-3-chloropropane 0.2 UG/L MCL
1,2-Dibromoethane 0.05 UG/L MCL
1,2-Dichlorobenzene 600 UG/L MCL
1,3-Dichlorobenzene 600 UG/L HAL
1,4-Dichlorobenzene 75 UG/L MCL
Dichlorodifluoromethane 1000 UG/L HAL
1,2-Dichloroethane 5 UG/L MCL
1,1-Dichloroethene 7 UG/L MCL
trans-1,2-Dichloroethene 100 UG/L MCL
cis-1,2-Dichloroethene 70 UG/L MCL
Dichloromethane 5 UG/L MCL
1,2-Dichloropropane 5 UG/L MCL
trans-1,3-Dichloropropene 2 UG/L RSD5
cis-1,3-Dichloropropene 2 UG/L RSD5
1,2-Dimethylbenzene 10000 UG/L MCL
1,3 & 1,4-Dimethylbenzene 10000 UG/L MCL
Dimethylbenzenes 10000 UG/L MCL
Ethenylbenzene 100 UG/L MCL
Ethylbenzene 700 UG/L MCL
Hexachlorobutadiene 1 UG/L HAL
1,1,1,2,2,2-Hexachloroethane 1 UG/L HAL
Methyl tert-butyl ether 20 UG/L HAL
Methylbenzene 1000 UG/L MCL
Naphthalene 20 UG/L HAL
2-Propenenitrile 0.6 UG/L RSD5
1,1,1,2-Tetrachloroethane 10 UG/L RSD5
Tetrachloroethene 5 UG/L MCL
Tetrachloromethane 5 UG/L MCL
Tribromomethane 100 UG/L MCL
1,2,4-Trichlorobenzene 70 UG/L MCL
1,1,1-Trichloroethane 200 UG/L MCL
1,1,2-Trichloroethane 5 UG/L MCL
Trichloroethene 5 UG/L MCL
Trichlorofluoromethane 2000 UG/L HAL
Trichloromethane 100 UG/L MCL
1,2,3-Trichloropropane 40 UG/L HAL
# ####################################################################
#
# * DRW: Drinking Water Criteria:
#
# * DRWSRC Source Codes: Source of data in the DRW column:
#
# MCL=EPA maximum contaminant level in drinking water
#
# HAL=EPA health-advisory level, lifetime,
# 70-kg adult, assumes consumption of 2 L
# water per day over a 70 year lifetime
#
# RSD5=Risk-specific dose @ Cancer risk level=10E-5
# For potential carcinogens only.
# RSD(Risk level=10E-5) = RSD(Risk level=10E-4) / 10.
#
#
#
# References:
#
# USEPA, 1999a, Drinking water regulations
# and health advisories, Office of water,
# (http://www.epa.gov/OST/Tools/dwstds.html).
#
# USEPA, 1999b, Integrated Risk Information
# System (IRIS) database, Office of Research
# and Development, National Center for
# Environmental Assessment,
# (http://www.epa.gov/iris).
# ###################################################################