(a) The owner or operator of any source subject to
this division (relating to Dallas-Fort Worth Eight-Hour Ozone Nonattainment
Area Minor Sources) shall not allow the discharge into the atmosphere
emissions of nitrogen oxides (NOX ) in
excess of the following emission specifications.
(1) Emission specifications for stationary, gas-fired,
reciprocating internal combustion engines are as follows:
(A) rich-burn engines:
(i) fired on landfill gas, 0.60 grams per horsepower-hour
(g/hp-hr); and
(ii) all other rich-burn engines, 0.50 g/hp-hr; and
(B) lean-burn engines:
(i) placed into service before June 1, 2007, that have
not been modified, reconstructed, or relocated on or after June 1,
2007, 0.70 g/hp-hr; and
(ii) placed into service, modified, reconstructed,
or relocated on or after June 1, 2007:
(I) fired on landfill gas or other biogas, 0.60 g/hp-hr;
and
(II) all other lean-burn engines, 0.50 g/hp-hr.
(2) The emission specification for stationary, dual-fuel,
reciprocating internal combustion engines is 5.83 g/hp-hr.
(3) Emission specifications for stationary, diesel,
reciprocating internal combustion engines are as follows:
(A) placed into service before March 1, 2009, that
have not been modified, reconstructed, or relocated on or after March
1, 2009, the lower of 11.0 g/hp-hr or the emission rate established
by testing, monitoring, manufacturer's guarantee, or manufacturer's
other data; and
(B) for engines not subject to subparagraph (A) of
this paragraph:
(i) with a horsepower (hp) rating of 50 hp or greater,
but less than 100 hp, that are installed, modified, reconstructed,
or relocated on or after March 1, 2009, 3.3 g/hp-hr;
(ii) with a horsepower rating of 100 hp or greater,
but less than or equal to 750 hp, that are installed, modified, reconstructed,
or relocated on or after March 1, 2009, 2.8 g/hp-hr; and
(iii) with a horsepower rating of 750 hp or greater
that are installed, modified, reconstructed, or relocated on or after
March 1, 2009, 4.5 g/hp-hr.
(4) As an alternative to the emission specifications
in paragraphs (1) - (3) of this subsection for units with an annual
capacity factor of 0.0383 or less, 0.060 pound per million British
thermal units (lb/MMBtu) heat input. For units placed into service
on or before December 31, 2000, the annual capacity factor as of December
31, 2000, must be used to determine eligibility for the alternative
emission specification of this paragraph. For units placed into service
after December 31, 2000, a 12-month rolling average must be used to
determine the annual capacity factor.
(5) For the purposes of this subsection, the terms
"modification" and "reconstruction" have the meanings defined in §116.10
of this title (relating to General Definitions) and 40 Code of Federal
Regulations §60.15 (December 16, 1975), respectively, and the
term "relocated" means to newly install at an account, as defined
in §101.1 of this title (relating to Definitions), a used engine
from anywhere outside that account.
(b) The averaging time for the NOX emission
specifications of subsection (a) of this section is as follows:
(1) if the unit is operated with a NOX continuous emissions monitoring system (CEMS)
or predictive emissions monitoring system (PEMS) under §117.2135(c)
of this title (relating to Monitoring, Notification, and Testing Requirements),
either as:
(A) a rolling 30-day average period, in the units of
the applicable standard;
(B) a block one-hour average, in the units of the applicable
standard, or alternatively;
(C) a block one-hour average, in pounds per hour, for
boilers, calculated as the product of the boiler's maximum rated capacity
and its applicable limit in lb/MMBtu; or
(2) if the unit is not operated with a NOX CEMS or PEMS under §117.2135(c) of this
title, a block one-hour average, in the units of the applicable standard.
(c) The maximum rated capacity used to determine the
applicability of the emission specifications in subsection (a) of
this section must be the greater of the following:
(1) the maximum rated capacity as of December 31, 2000;
or
(2) the maximum rated capacity after December 31, 2000.
(d) A unit's classification is determined by the most
specific classification applicable to the unit as of December 31,
2000. For example, a unit that is classified as a stationary gas-fired
engine as of December 31, 2000, but subsequently is authorized to
operate as a dual-fuel engine, must be classified as a stationary
gas-fired engine for the purposes of this chapter.
(e) Changes after December 31, 2000, to a unit subject
to an emission specification in subsection (a) of this section (ESAD
unit) that result in increased NOX emissions
from a unit not subject to an emission specification in subsection
(a) of this section (non-ESAD unit), such as redirecting one or more
fuel or waste streams containing chemical-bound nitrogen to an incinerator
or a flare, is only allowed if:
(1) the increase in NOX emissions
at the non-ESAD unit is determined using a CEMS or PEMS that meets
the requirements of §117.2135(c) of this title, or through stack
testing that meets the requirements of §117.2135(f) of this title;
and
(2) emission credits equal to the increase in NOX emissions
at the non-ESAD unit are obtained and used in accordance with §117.9800
of this title (relating to Use of Emission Credits for Compliance).
(f) A source that met the definition of major source
on December 31, 2000, is always classified as a major source for purposes
of this chapter. A source that did not meet the definition of major
source (i.e., was a minor source, or did not yet exist) on December
31, 2000, but becomes a major source at any time after December 31,
2000, is from that time forward always classified as a major source
for purposes of this chapter.
(g) The availability under subsection (a)(4) of this
section of an emission specification for units with an annual capacity
factor of 0.0383 or less is based on the unit's status on December
31, 2000. Reduced operation after December 31, 2000, cannot be used
to qualify for a more lenient emission specification under subsection
(a)(4) of this section than would otherwise apply to the unit.
(h) No person shall allow the discharge into the atmosphere
from any unit subject to NOX emission
specifications in subsection (a) of this section, emissions in excess
of the following, except as provided in §117.2125 of this title
(relating to Alternative Case Specific Specifications):
(1) carbon monoxide (CO), 400 ppmv at 3.0% oxygen (O2 ), dry basis (or alternatively, 3.0 g/hp-hr
for stationary internal combustion engines):
(A) on a rolling 24-hour averaging period, for units
equipped with CEMS or PEMS for CO; and
(B) on a one-hour average, for units not equipped with
CEMS or PEMS for CO; and
(2) for units that inject urea or ammonia into the
exhaust stream for NOX control, ammonia
emissions of 10 ppmv at 15% O2 , dry,
for gas-fired lean-burn engines and diesel engines; and 3.0% O2 , dry, for all other units, based on:
(A) a block one-hour averaging period for units not
equipped with a CEMS or PEMS for ammonia; or
(B) a rolling 24-hour averaging period for units equipped
with CEMS or PEMS for ammonia.
(i) An owner or operator may use emission reduction
credits as specified in §117.9800 of this title to comply with
the NOX emission specifications of this
section.
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