% CL = CL/(Ct + CC) * 100
where:
% CL = Percent leaking connectors as determined through periodic monitoring required in paragraphs (a) and (b) of this section.
CL = Number of connectors measured at 500 parts per million or greater, by the method specified in § 63.180(b) of this subpart.
Ct = Total number of monitored connectors in the process unit.
CC = Optional credit for removed connectors = 0.67 * net (i.e., total removed-total added) number of connectors in organic hazardous air pollutants service removed from the process unit after the compliance date set forth in the applicable subpart for existing process units, and after the date of initial start-up for new process units. If credits are not taken, then CC = 0.
% CL = [(CL- CAN)/(Ct + CC)] * 100
where:
% CL = Percent leaking connectors as determined through periodic monitoring required in paragraphs (a) and (b) of this section.
CL = Number of connectors, including nonrepairables, measured at 500 parts per million or greater, by the method specified in § 63.180(b) of this subpart.
CAN = Number of allowable nonrepairable connectors, as determined by monitoring required in paragraphs (b)(3) and (c) of this section, not to exceed 2 percent of the total connector population, Ct.
Ct = Total number of monitored connectors, including nonrepairables, in the process unit.
CC = Optional credit for removed connectors = 0.67 * net number (i.e., total removed-total added) of connectors in organic hazardous air pollutants service removed from the process unit after the compliance date set forth in the applicable subpart for existing process units, and after the date of initial start-up for new process units. If credits are not taken, then CC = 0.
40 C.F.R. §63.174