Figure: 30 TAC §117.1020(c)(1)

The equation for calculating the rolling 30-day average nitrogen oxides emission limit in pounds per day for all electric generating facilities in the system cap.

Where:

     Cap30day = the NOX 30-day rolling average emission cap in pounds per day;

     i = each EGF in the electric power generating system;

     N = the total number of EGFs in the emission cap;

     Hi =  the average of the daily heat input for each EGF in the emission cap, in million British
             thermal units per day, as certified to the executive director, for the system highest 30-
             day period in the nine months of July, August, and September 1996, 1997, and 1998.
             For an EGF exempt from the 40 Code of Federal Regulations (CFR) Part 75 monitoring
             requirements, if the heat input data corresponding to the system highest 30-day period
             (as determined for an EGF in the system subject to 40 CFR Part 75 monitoring) is not
             available, the daily average of the highest calendar month heat input in 1996 - 1998
             may be used; and

     Ri = the emission specification of §117.1010(a) of this title.