Figure: 30 TAC §117.3120(a)

The equation for calculating the 90-day rolling average nitrogen oxides emission cap in pounds per day for all cement kilns at an account.

Where:

     Cap = 90-day rolling average NOX emission cap, in ppd;

     i = each cement kiln at a single account;

     N = the total number of cement kilns at the account; and

     Ri = the kiln’s ozone season daily NOX emission rate (in ppd) reported in the account's 1996
            EI.