| (a) Production Units 1 and 2 together are prohibited
from operating with only one furnace on-line and Production Unit 3
is prohibited from operating with only one furnace on-line. Affected
sources in §112.110 of this title (relating to Applicably) may
not exceed the following pounds per hour (lb/hr) sulfur dioxide (SO2) limits based on the number of furnaces on-line
in Production Units 1 and 2 and in Production Unit 3:
Attached Graphic
(b) If during any block one-hour period the number
of furnaces on-line changes, the emission limit must be determined
by one of the following methods:
(1) the fewest number of furnaces on-line in each production
unit during any fraction of the hour; or
(2) the time-weighted average of all limits applying
during any fraction of the hour, calculated using the following equation:
Attached Graphic
(c) The maximum emission rate of SO2
allowed under this section during any block one-hour period
must be determined on a block one-hour average.
(d) The emission cap identified in §112.112(a)
of this section is the maximum emission limit that applies to the
sum of the emissions from the Incinerator + HRSG (EPN 13A), Flare
4 (EPN Flare 4), Dryer Stack Units Nos. 1 & 2 (EPN 7A), and Dryer
Stack Unit No. 1 (EPN 12A), and the subcap identified in §112.112(a)
of this section is the maximum emission limit that applies to the
sum of the emissions from Dryer Stack Units Nos. 1 & 2 (EPN 7A)
and Dryer Stack Units No. 3 (EPN 12A).
(e) Tail gas may only be combusted in sources whose
emissions are routed to the Incinerator + HRSG (EPN 13A), Flare 4
(EPN Flare 4), Dryer Stack Units Nos. 1 & 2 (EPN 7A), and Dryer
Stack Unit No. 1 (EPN 12A ).
(f) Simultaneous operation of the Incinerator + HRSG
(EPN 13A) and Flare 4 (EPN FLARE 4) during any block one-hour period
is prohibited.
(g) Sulfur or sulfur containing compounds may not be
routed to Flare 1 (EPN Flare-1), Flare 2 (EPN Flare-2), or Flare 3
(EPN Flare-3) on or after the compliance date in §112.118 of
this title (relating to Compliance Schedule).
(h) After construction and commencement of operation,
if authorized, Flare 4 (EPN FLARE 4) must have a stack height of 60.35
meters and must be located at Universal Transverse Mercator (UTM)
coordinates UTM East Meters 273185 and UTM North Meters 3573987 in
UTM Zone 14.
(i) Incinerator + HRSG (EPN 13A) must have a stack
height of 65.00 meters no later than the compliance date in §112.118
of this title (relating to Compliance Schedules).
(j) The owner or operator may request an alternate
means of control under the provisions of §112.102(i) of this
title (relating to Control Requirements).
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