Current through Register Vol. 24-06, March 15, 2024
In addition to the general applicability of chapters 173-400
and 173-490 WAC to all emission sources; no kraft pulp mill shall cause or
permit air contaminant emissions in excess of the limits listed below. Specific
emission standards listed in this chapter will take precedence over the general
emission standards of chapter 173-400 WAC.
(1) Recovery furnaces.
(a) The particulate emissions from each
recovery furnace stack shall not exceed 0.23 grams of particulate per dry cubic
meter at standard conditions (0.10 grains/dscf) corrected to eight percent
oxygen averaged over three one hour tests.
(b) The TRS emissions from each recovery
furnace stack constructed before January 1, 1970, and for recovery furnaces
that have direct contact evaporators, shall not exceed 17.5 ppm corrected to
eight percent oxygen for a daily average.
(c) The TRS emissions from each recovery
furnace constructed after January 1, 1970, which does not have a contact
evaporator, shall not exceed 5.0 ppm corrected to eight percent oxygen for a
daily average.
(2) Smelt
dissolver tank vent. The particulate emissions from smelt dissolver tank vents
shall not exceed 0.15 grams per kilogram (0.30 pounds per ton) of solids fired
at the associated recovery furnace.
(3) Lime kilns.
(a) The particulate emission from each lime
kiln stack shall not exceed 0.30 grams of particulate per dry cubic meter (0.13
grains/dscf) at standard conditions corrected to ten percent oxygen.
(b) The TRS emissions from any lime kiln
stack shall not exceed eighty ppm expressed as hydrogen sulfide for more than
two consecutive hours in any one day.
(c) The average daily emission of TRS from
any lime kiln stack shall not exceed fifty ppm. After January 1, 1985, TRS
emissions from each lime kiln stack shall not exceed twenty ppm corrected to
ten percent oxygen for a daily average.
(4) Other TRS emissions units.
(a) Noncondensibles from digesters,
multiple-effect evaporators and condensate stripper system shall be treated to
reduce the emissions of TRS equal to the reduction achieved by thermal
oxidation in a lime kiln.
(b) A
backup treatment system or equivalent approved by ecology must be installed to
assure continual treatment of noncondensibles.
(5) Other particulate emissions units. The
emission of particulates from emissions units other than kraft recovery
furnaces, lime kilns, or smelt dissolving tank vents, shall not exceed the
following maximums:
(a) 0.46 grams per dry
cubic meter at standard conditions (0.2 grains/dscf) corrected to seven percent
oxygen, for units which combust wood and wood residue to produce steam and
which commenced construction prior to January 1, 1983.
(b) 0.12 grams per dry cubic meter at
standard conditions (0.05 grains/dscf) corrected to seven percent oxygen, for
units which combust fuel other than wood and wood residue to produce steam, and
which commenced construction after January 1, 1983.
(c) 0.23 grams per dry cubic meter at
standard conditions (0.1 grains/dscf) corrected to seven percent oxygen in the
case of combustion units, for units not classified under (a) or (b) of this
subsection.
(6) Opacity.
(a) No person shall cause or allow the
emission of a plume from any kraft recovery furnace, smelt dissolver tank, or
lime kiln, which has an average opacity greater than thirty-five percent for
more than six consecutive minutes in any sixty minute period, except as
described in WAC 173-405-040(7).
(b) No person shall cause or allow the
emission of a plume, from any emissions unit other than a kraft recovery
furnace, smelt dissolver tank, or lime kiln, which has an average opacity
greater than twenty percent for more than six consecutive minutes in any sixty
minute period. The emissions unit shall comply with the alternative visible
emission standard for:
(i) Soot blowing or
grate cleaning in WAC
173-400-040(2)(a);
(ii) Hog fuel or wood fired boiler in
operation before January 24, 2018, in WAC
173-400-040(2)(e);
and/or
(iii) Furnace refractory in
WAC 173-400-040(2)(f).
(c) There shall be no more than
one violation notice issued in any sixty minute period.
(d) These provisions (of WAC 173-405-040(6) )
shall not apply when the presence of uncombined water is the only reason for
the opacity of the plume to exceed the applicable maximum.
(7) Alternative emission limitation. An owner
or operator may request an alternative emission limit (as defined in WAC
173-400-030 ) under:
(a) WAC
173-400-081
for an action covered under a notice of construction application; or
(b) WAC
173-400-082
for a permit modification.
(8) Operation and maintenance. At all times,
including periods of abnormal operation and upset conditions, owners and
operators shall, to the extent practicable, maintain and operate any affected
facility, including associated air pollution control equipment, in a manner
consistent with good air pollution control practice. Determination of whether
acceptable operating and maintenance procedures are being used will be based on
information available to ecology which may include, but is not limited to,
monitoring results, opacity observations, review of operating and maintenance
procedures, and inspection of the source.
(9) SO2.
(a) The emission of sulfur dioxide from any
recovery furnace or lime kiln shall not exceed five hundred ppm for an hourly
average, corrected to eight percent oxygen for a recovery furnace or to ten
percent oxygen for a lime kiln.
(b)
The emission of sulfur dioxide from any emissions unit other than a recovery
furnace or lime kiln shall not exceed one thousand ppm for an hourly average,
corrected to seven percent oxygen for combustion units.
(10) Source testing. To demonstrate
compliance with this chapter, the provisions of WAC
173-400-105
shall apply to all sources to which this chapter is applicable.
Statutory Authority:
Chapter
70.94 RCW. 91-05-064
(Order 90-06), § 173-405-040, filed 2/19/91, effective 3/22/91. Statutory
Authority:
Chapters
43.21A and
70.94 RCW. 83-09-036 (Order DE
83-13), § 173-405-040, filed 4/15/83. Statutory Authority:
RCW
70.94.331 and
70.94.395. 80-11-060 (Order DE
80-15), § 173-405-040, filed
8/20/80.