Where:
OLR = mercury concentration operating limit for the roaster (or roasters that share a common stack) (in micrograms per cubic meter);
Ctest = average mercury concentration measured by the monitoring procedures (PS 12A or PS 12B or 30B) during the compliance performance stack test (in micrograms per cubic meter);
EL = emission standard for ore pretreatment processes (in lb/million tons of ore);
CT = compliance test results for ore pretreatment processes (in lb/million tons of ore).
Where:
OLC = mercury concentration operating limit for the carbon adsorber control device on the process as measured using the sorbent trap, (micrograms per cubic meter);
Ctrap = average mercury concentration measured using the sorbent trap during the week that includes the compliance performance test, (micrograms per cubic meter);
EL = emission standard for the affected sources (lb/ton of concentrate);
CT = compliance test results for the affected sources (lb/ton of concentrate).
40 C.F.R. §63.11647