14
Chemical
Drinking water
regulatory level1
(MCL/MAC) mg/L
Inuent challenge
concentration2 mg/L
Chemical
reduction percent
Maximum
product water
concentration mg/L
alachlor 0.002 0.05 > 98 0.0013
atrazine 0.003 0.1 > 97 0.0033
benzene 0.005 0.081 > 99 0.0013
carbofuran 0.04 0.19 > 99 0.0013
carbon tetrachloride 0.005 0.078 98 0.00184
chlorobenzene 0.1 0.077 > 99 0.0013
chloropicrin - 0.015 99 0.00023
2,4-D 0.07 0.11 98 0.00174
dibromochloropropane(DBCP) 0.0002 0.052 > 99 0.000023
o-dichlorobenzene 0.6 0.08 > 99 0.0013
p-dichlorobenzene 0.075 0.04 > 98 0.0013
1,2-dichloroethane 0.005 0.088 9550.00485
1,1-dichloroethylene 0.007 0.083 > 99 0.0013
cis-1,2-dichloroethylene 0.07 0.17 > 99 0.00053
trans-1,2-dichloroethylene 0.1 0.086 > 99 0.0013
1,2-dichloropropane 0.005 0.08 > 99 0.0013
cis-1,3-dichloropropylene - 0.079 > 99 0.0013
dinoseb 0.007 0.17 99 0.00024
endrin 0.002 0.053 99 0.000594
ethylbenzene 0.7 0.088 >99 0.0013
ethylene dilbromide (EDB) 0.00005 0.044 > 99 0.000023
haloacetonitriles (HAN)
bromochloroacetonitrile
dibromoacetonitrile
dichloroacetonitrile
trichloroacetoritrile
-
-
-
-
0.022
0.024
0.0096
0.015
98
98
98
98
0.00053
0.00063
0.00023
0.00033
haloketones (HK):
1,1-dichloro-2-propanone
1,1,1-trichloro-2-propanone
-
-
0.0072
0.0082
99
96
0.00013
0.00033
heptachlor (H-34,Heptox) 0.0004 0.08 > 99 0.0004
heptachlor epoxide 0.0002 0.0107698 0.00026
hexachlorobutadiene - 0.044 > 98 0.0013
hexachlorocyclopentadiene 0.05 0.06 > 99 0.0000023
lindane 0.0002 0.055 > 99 0.000013
methoxychlor 0.04 0.05 > 99 0.00013
pentachlorophenol 0.001 0.096 > 99 0.0013
simazine 0.004 0.12 > 97 0.0043
styrene 0.1 0.15 > 99 0.00053
1,1,2,2-tetrachloroethane - 0.081 > 99 0.0013
tetrachloroethylene 0.005 0.081 > 99 0.0013
toluene 1 0.078 > 99 0.0013
2,4,5-TP (silvex) 0.05 0.27 99 0.00164
tribromoacetic acid - 0.042 > 98 0.0013
1,2,4-trichlorobenzene 0.07 0.16 > 99 0.00053
1,1,1-trichloroethane 0.2 0.084 95 0.00464
1,1,2-trichloroethane 0.005 0.15 > 99 0.00053
trichloroethylene 0.005 0.18 > 99 0.00103
trihalomethanes (includes):
chloroform (surrogate chemical)
bromoform
bromodichloromethane
chlorodibromomethane
0.080 0.300 95 0.015
xylenes (total) 10 0.070 > 99 0.0013
Volatile Organic Chemicals (VOCs) included by surrogate testing*
* Chloroform was used as the surrogate chemical for VOC reduction claims
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 Inuent challenge levels are average inuent concentrations determined in surrogate qualication 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 qualication testing.
5 Chemical reduction percent and maximum product water level calculated at chloroform 95% breakthrough
point as determined in surrogate qualication 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.
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