Figure: 30 TAC §113.2174(b)

Table 2.  Class I Emission Limits for Existing Small Municipal Waste Combustion Unitsa
Pollutant Emission Limitsb Averaging Times Compliance Method
1.  Organics:
      Dioxins/Furans
(total mass basis)		 30 nanograms per dry
standard cubic meter for
municipal waste
combustion units that do
not employ an electrostatic
precipitator-based emission
control system
-or-
60 nanograms per dry
standard cubic meter for
municipal waste
combustion units that
employ an electrostatic
precipitator-based emission
control system		 3-run average (minimum
run duration is 4 hours)		 Stack test
2.  Metals:
      Cadmium		 0.040 milligrams per dry
standard cubic meter		 3-run average (run
duration specified in test
method)		 Stack test
      Lead 0.490 milligrams per dry
standard cubic meter		 3-run average (run
duration specified in test
method)		 Stack test
     Mercury 0.080 milligrams per dry
standard cubic meter
85 percent reduction of
potential mercury
emissions		 3-run average (run
duration specified in test
method)		 Stack test
    Opacity 10 percent Thirty 6-minute
averages		 Stack test
    Particulate Matter 27 milligrams per dry
standard cubic meter		 3-run average (run
duration specified in test
method)		 Stack test
3.  Acid Gases:
      Hydrogen Chloride		 31 parts per million by dry
volume 95 percent
reduction of potential
hydrogen chloride
emissions
 		 3-run average (minimum
run duration is 1 hour)		 Stack test
     Sulfur Dioxide 31 parts per million by dry
volume 75 percent
reduction of potential sulfur
dioxide emissions
 		 24-hour daily block
geometric average
concentration percent
reduction		 Continuous emission
monitoring system
4.  Other:
      Fugitive Ash		 Visible emissions for no
more than 5 percent of
hourly observation period		 Three 1-hour
observation periods		 Visible emission test

aClass I units mean small municipal waste combustion units subject to this division that are located at municipal waste combustion plants with an aggregate plan combustion capacity greater than 250 tons per day of municipal solid waste.  See §113.2100 of this title for definitions.

bAll emission limits (except for opacity) are measured at 7 percent oxygen.