SRE = [1 - (Clout / Clin)] * 100%
Where:
Cl in = mass feedrate of total chlorine or chloride in all feedstreams, reported as chloride; and
Cl out = mass emission rate of hydrogen chloride and chlorine gas, reported as chloride, in exhaust emissions prior to release to the atmosphere.
SRE = [1 - (Clout / Clin)] * 100%
Where:
Cl in = mass feedrate of total chlorine or chloride in all feedstreams, reported as chloride; and
Cl out = mass emission rate of hydrogen chloride and chlorine gas, reported as chloride, in exhaust emissions prior to release to the atmosphere.
DRE = [1 - (Wout / Win)] * 100%
Where:
Win = mass feedrate of one POHC in a waste feedstream; and
Wout = mass emission rate of the same POHC present in exhaust emissions prior to release to the atmosphere.
40 C.F.R. §63.1218