SECTION 117.3010. Emission Specifications

In accordance with the compliance schedule in §117.9300 of this title (relating to Compliance Schedule for Utility Electric Generation in East and Central Texas), the owner or operator of each utility electric power boiler or stationary gas turbine (including duct burners used in turbine exhaust ducts) shall:

(1) ensure that emissions of nitrogen oxides (NO _X ) do not exceed the following rates, in pounds per million British thermal units heat input on an annual (calendar year) average:

(A) electric power boilers:

(i) gas-fired, 0.14; and

(ii) coal-fired, 0.165;

(B) stationary gas turbines (including duct burners used in turbine exhaust ducts):

(i) subject to Texas Utilities Code (TUC), §39.264 (except units designated in accordance with TUC, §39.264(i)), 0.14;

(ii) not subject to TUC, §39.264, 0.15 (or alternatively, 42 parts per million by volume (ppmv) NO_X , adjusted to 15% oxygen (O₂), dry basis); and

(iii) units designated in accordance with TUC, §39.264(i), 0.15 (or alternatively, 42 ppmv NO_X , adjusted to 15% O₂, dry basis); and

(2) ensure that for units that inject urea or ammonia into the exhaust stream for NO_X control, ammonia emissions do not exceed 10 ppmv at 3.0% O₂, dry, for boilers and 15% O₂, dry, for stationary gas turbines (including duct burners used in turbine exhaust ducts) from any unit subject to the NO_X emission specifications in paragraph (1) of this section, based on:

(A) a block one-hour averaging period for units not equipped with a continuous emissions monitoring system (CEMS) or predictive emissions monitoring system (PEMS) for ammonia; or

(B) a rolling 24-hour averaging period for units equipped with CEMS or PEMS for ammonia.

Source Note: The provisions of this §117.3010 adopted to be effective June 14, 2007, 32 TexReg 3206