1. (a) Cadmium.

   1. (1) Before April 28, 2009, the concentration of cadmium contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 40 micrograms per dry standard cubic meter, corrected to 7 percent oxygen.
   2. (2) By April 28, 2009, the concentration of cadmium contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 35 micrograms per dry standard cubic meter, corrected to 7 percent oxygen.

2. (b) Lead.

   1. (1) By December 19, 2000, the concentration of lead contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 490 micrograms per dry standard cubic meter, corrected to 7 percent oxygen.
   2. (2) By August 26, 2002, or three years after EPA approval of the State plan, whichever is first, the concentration of lead contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 440 micrograms per dry standard cubic meter, corrected to 7 percent oxygen.
   3. (3) By April 28, 2009, the concentration of lead contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 400 micrograms per dry standard cubic meter, corrected to 7 percent oxygen.

3. (c) Mercury.

   1. (1) Before April 28, 2009, the concentration of mercury contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 80 micrograms per dry standard cubic meter or 15 percent of the potential mercury emission concentration (85 percent reduction by weight), corrected to 7 percent oxygen, whichever is less stringent.
   2. (2) By April 28, 2009, the concentration of mercury contained in the gases discharged to the atmosphere from a MWC unit shall not exceed 50 micrograms per dry standard cubic meter or 15 percent of the potential mercury emission concentration (85 percent reduction by weight), corrected to 7 percent oxygen, whichever is less stringent.

Added at 15 Ok Reg 2591, eff 6-25-98

Amended at 26 Ok Reg 1165, eff 7-1-09