MIL-HDBK-1003/7
1
An opacity limit also exists. Opacity must not exceed 20 percent, except for one six-
minute period per hour of not more than 27 percent opacity.
2
For natural gas or distillate oil in a duct burner used in a combined cycle plant, the
limit is 0.20 lb/MBtu.
3
For residual oil in a duct burner used in a combined cycle plant, the limit is 0.40
lb/MBtu.
4
The percent reduction requirement is waived for facilities that have a permit limiting
annual capacity factor on oil and coal to 30 percent or less.
Subpart D would still apply to any new, fossil-fuel fired steam
generating units larger than 250 MBtu/hr heat input rate which is not covered by Subpart
Db or Subpart Da. The emission limits under Subpart D are presented in Table 32.
Table 32
New Source Performance Standards for Fossil-Fuel Fired
Steam Generating Units Larger Than 250 MBTU/HR Heat Input Rate
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*
*
Maximum
*
*
One Hour Average
*
*
Pollutant
Emission Rate
*
*
lb/MBtu
*
*
*
*
Sulfur Dioxide1
*
*
Liquid Fuel
0.80
*
*
Solid Fuel
1.2
*
*
Particulate Matter2
*
*
Any Fuel
0.10
*
*
Nitrogen Dioxide1
*
*
Gaseous Fuel
0.20
*
*
Liquid Fuel
0.30
*
*
Solid Fuel (except lignite)
0.70
*
*
Lignite
0.60 or 0.80
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1
When combinations of fuel are burned simultaneously, the applicable standard shall be
determined by proration.
Sulfur Oxides
y (0.80) + z (1.2) / (x + y + z)
Nitrogen Oxides
x (0.20) + y (0.30) + z (0.70) / (x + y + z)
Where x is the percent of total heat input derived from gaseous fuel, y from liquid
fuel, and z from solid fuel.
195
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