Current through Register Vol. 63, No. 3, March 1, 2024
(1) Total Reduced Sulfur (TRS). Each mill
must continuously monitor TRS using the following:
(a) The monitoring equipment must determine
compliance with the emission limits and reporting requirements established by
OAR 340-234-0200 through 340-234-0270, and must continuously sample and record
concentrations of TRS;
(b) The
sources monitored must include, but are not limited to individual recovery
furnaces, and lime kilns. All sources must be monitored down-stream of their
respective control devices, in either the ductwork or the stack, using the DEQ
Continuous Monitoring Manual;
(c)
Unless otherwise authorized or required by permit, at least once per year,
vents from other sources as required in OAR 340-234-0210(1)(e), other sources,
must be sampled to demonstrate the representativeness of the emission of TRS
using EPA Method 16, 16A, 16B or continuous emission monitors. Sampling using
these EPA methods must consist of three separate consecutive runs of one-hour
each using the DEQ Source Sampling Manual. Continuous emissions monitors must
be operated for three consecutive hours using the DEQ Continuous Monitoring
Manual. All results must be reported to DEQ;
(d) Smelt dissolving tank vents must be
sampled for TRS quarterly except that testing may be semi-annual when the
preceding six source tests were less than 0.0124 gram/Kg BLS (0.025 pound/ton
BLS) using EPA Method 16, 16A, 16B or continuous emission monitors. Sampling
using these EPA methods must consist of three separate consecutive runs of
one-hour each using the DEQ Source Sampling Manual.
(2) Particulate Matter:
(a) Each mill must sample the recovery
furnace, lime kiln and smelt dissolving tank vent for particulate emissions as
measured by EPA Method 5 or 17 using the DEQ Source Sampling Manual.
Particulate matter emission determinations by EPA Method 5 must use water as
the cleanup solvent instead of acetone, and consist of the average of three
separate consecutive runs having a minimum sampling time of 60 minutes each, a
maximum sampling time of eight hours each, and a minimum sampling volume of
31.8 dscf each.
(A) When applied to recovery
furnace gases "dry standard cubic meter" requires adjustment of the gas volume
to that which would result in a concentration of 8% oxygen if the oxygen
concentration exceeds 8%.
(B) When
applied to lime kiln gases "dry standard cubic meter" requires adjustment of
the gas volume to that which would result in a concentration of 10% oxygen if
the oxygen concentration exceeds 10%.
(C) The mill must demonstrate that oxygen
concentrations are below the values in (A) and (B) above or furnish oxygen
levels and corrected data.
(b) Each mill must provide continuous
monitoring of opacity of emissions discharged to the atmosphere from each
recovery furnace stack using the DEQ Continuous Monitoring Manual.
(c) Recovery furnace particulate source tests
must be performed quarterly except that testing may be semi-annual when the
preceding six source tests were less than 0.225 gram/dscm (0.097 grain/dscf)
for furnaces subject to OAR 340-234-0210(2)(a) or 0.075 gram/dscm (0.033
grain/dscf) for furnaces subject to OAR 340-234-0210(2)(d)(A);
(d) Lime kiln source tests must be performed
semi-annually;
(e) Smelt dissolving
tank vent source tests must be performed quarterly except that testing may be
semi-annual when the preceding six source tests were less than 0.187 kilogram
per metric ton (0.375 pound per ton) of production.
(3) Sulfur Dioxide (SO2). Representative
sulfur dioxide emissions from each recovery furnace must be determined at least
once each month by the average of three one-hour source tests using the DEQ
Source Sampling Manual or from continuous emission monitors. If continuous
emission monitors are used, the monitors must be operated for three consecutive
hours using the DEQ Continuous Monitoring Manual.
(4) Combined Monitoring. DEQ may allow the
monitoring for opacity of a combination of more than one emission stream if
each individual emission stream has been demonstrated with the exception of
opacity to be in compliance with all the emission limits of OAR 340-234-0210.
DEQ may establish more stringent emission limits for the combined emission
stream.
(5) New Source Performance
Standards Monitoring. New or modified sources that are subject to the New
Source Performance Standards, 40 CFR part 60 subpart BB, must conduct
monitoring or source testing as required by subpart BB. In addition, when these
rules are more stringent than 40 CFR part 60 subpart BB, DEQ may require some
or all of the relevant monitoring in this section.
[NOTE: This rule is included in the State of Oregon Clean Air
Act Implementation Plan that EQC adopted under OAR 340-200-0040 with the
exception of references to Total Reduced Sulfur.]
[NOTE: The DEQ Source Sampling Manual and Continuous Monitoring
Manual are published with OAR 340-200-0035.]
[NOTE: View a PDF of referenced EPA Methods by clicking on
"Tables' link below.]
To view tables referenced in rule text,
click here to view
rule.
Statutory/Other Authority: ORS
468.020 &
468A.025
Statutes/Other Implemented: ORS
468A.025