27
Chemical
Drinking water regulatory
level
1
(MCL/MAC) mg/L
Influent challenge
concentration
2
mg/L
Chemical reduction
percent
Maximum product water
concentration mg/L
alachlor
0.002
0.050
> 98
0.001
3
atrazine
0.003
0.100
> 97
0.003
3
benzene
0.005
0.081
> 99
0.001
3
carbofuran
0.04
0.190
> 99
0.001
3
carbon tetrachloride
0.005
0.078
98
0.0018
4
chlorobenzene
0.1
0.077
> 99
0.001
3
chloropicrin
-
0.015
99
0.0002
3
2,4-D
0.07
0.110
98
0.0017
4
dibromochloropropane(DBCP)
0.0002
0.052
> 99
0.00002
3
o-dichlorobenzene
0.6
0.080
> 99
0.001
3
p-dichlorobenzene
0.075
0.040
> 98
0.001
3
1,2-dichloroethane
0.005
0.088
95
5
0.0048
5
1,1-dichloroethylene
0.007
0.083
> 99
0.001
3
cis-1,2-dichloroethylene
0.07
0.170
> 99
0.0005
3
trans-1,2-dichloroethylene
0.1
0.086
> 99
0.001
3
1,2-dichloropropane
0.005
0.080
> 99
0.001
3
cis-1,3-dichloropropylene
-
0.079
> 99
0.001
3
dinoseb
0.007
0.170
99
0
.0002
4
endrin
0.002
0.053
99
0.00059
4
ethylbenzene
0.7
0.088
> 99
0.001
3
ethylene dilbromide (EDB)
0.00005
0.044
> 99
0.00002
3
haloacetonitriles (HAN)
bromochloroacetonitrile
dibromoacetonitrile
dichloroacetonitrile
trichloroacetoritrile
-
-
-
-
0.022
0.024
0.0096
0.015
98
98
98
98
0.0005
3
0.0006
3
0.0002
3
0.0003
3
haloketones (HK):
1,1-dichloro-2-propanone
1,1,1-trichloro-2-propanone
-
-
0.0072
0.0082
99
96
0.0001
3
0.0003
3
heptachlor (H-34,Heptox)
0.0004
0.08
> 99
0.0004
heptachlor epoxide
0.0002
0.0107
6
98
0.0002
6
hexachlorobutadiene
-
0.044
> 98
0.001
3
hexachlorocyclopentadiene
0.05
0.060
> 99
0.000002
3
lindane
0.0002
0.055
> 99
0.00001
3
methoxychlor
0.04
0.050
> 99
0.0001
3
pentachlorophenol
0.001
0.096
> 99
0.001
3
simazine
0.004
0.120
> 97
0.004
3
styrene
0.1
0.150
> 99
0.0005
3
1,1,2,2-tetrachloroethane
-
0.081
> 99
0.001
3
tetrachloroethylene
0.005
0.081
> 99
0.001
3
toluene
1
0.078
> 99
0.001
3
2,4,5-TP (silvex)
0.05
0.270
99
0.0016
4
tribromoacetic acid
-
0.042
> 98
0.001
3
1,2,4-trichlorobenzene
0.07
0.160
> 99
0.0005
3
1,1,1-trichloroethane
0.2
0.084
95
0.0046
4
1,1,2-trichloroethane
0.005
0.150
> 99
0.0005
3
trichloroethylene
0.005
0.180
> 99
0.0010
3
trihalomethanes (includes):
chloroform (surrogate chemical)
bromoform
bromodichloromethane
chlorodibromomethane
0.080
0.300
95
0.015
xylenes (total)
10
0.070
> 99
0.001
3
1. These harmonized values were agreed upon by representatives of USEPA and Health Canada for the purpose of evaluating
products to the requirements of this Standard.
2. Influent challenge levels are average influent concentrations determined in surrogate qualification testing.
3. Maximum product water level was not observed but was set at the detection limit of the analysis.
4. Maximum product water level is set at a value determined in surrogate qualification testing.
5. Chemical reduction percent and maximum product water level calculated at chloroform 95% breakthrough point as
determined in surrogate qualification testing.
6. The surrogate test results for heptachlor epoxide demonstrated a 98% reduction. These data were used to calculate an upper
occurrence concentration which would produce a maximum product water level at the MCL.
* VOC Surrogate Claims
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