A. Noncombustion process operations. No owner
or other person shall cause or permit to be discharged into the atmosphere from
any process operation any sulfur dioxide emissions in excess of an in-stack
concentration of 2000 ppm by volume.
B. Combustion installations.
1. No owner or other person shall cause or
permit to be discharged into the atmosphere from any combustion installation
any sulfur dioxide emissions in excess of the following limits:
a. S = 2.64K (AQCR 1 through 6)
b. S = 1.06K (for liquid or gaseous fuels -
AQCR 7)
c. S = 1.52K (for solid
fuels - AQCR 7)
where:
S = allowable emission of sulfur dioxide
expressed in lbs/hr.
K = actual heat input at total capacity expressed in Btu
X 106 per hour.
2. Where there is more than one unit in a
combustion installation and where the installation can be shown, to the
satisfaction of the board, to be in compliance when the installation is
operating at total capacity, the installation will be deemed to still be in
compliance when the installation is operated at reduced load or one or more
units are shut down for maintenance or repair, provided that the same type of
fuel with the same sulfur content, or an equivalent, is continued in
use.
3. For installations in AQCR 7
at which different fossil fuels are burned simultaneously, whether in the same
or different units, the allowable emissions shall be determined by proration
using the following formula:
| PS = K |
X(1.06) + Y(1.52) |
| X + Y |
where:
PS = prorated allowable emissions of sulfur dioxide
expressed in lb/hr.
X = percentage of actual heat input at total capacity
derived from liquid or gaseous fuel.
Y = percentage of actual heat input at total capacity
derived from solid fuels.
K = actual heat input at total capacity expressed in Btu
X 106 per hour.
