A. Initial and replacement performance
specification testing for a
CEMS shall be conducted as follows.
(1) For a
CEMS, either the performance
specification testing in 40 CFR Part
60, Appendix B or 40 CFR Part
75
applies.
(2) For a
CERMS, either
the performance specifications of 40 CFR Part
60, Appendix B, Specification 6
or 40 CFR Part
75 Appendix A applies.
(3) All performance specification testing
shall be performed within 180 days of the
CEMS initial installation. For a
facility using a
CEMS:
(a) Like-kind
replacement analyzers can be used to serve as a backup for a certified
analyzer, for up to a 720 hour period of interim monitoring per calendar year
without having to meet the Part 60 initial certification requirements. A
like-kind replacement
analyzer is defined as the same make and model
(regardless of series identification) as the
analyzer it is replacing. This
analyzer would use the same probe and
sample interface as the certified CEM.
In order for the data to be considered valid the analyzer
must pass a Cylinder Gas Audit (CGA) prior to each use as required in 40 CFR
Part 60, Appendix F after the analyzer is installed in the monitoring location.
It also must comply with the daily QC requirements of 40 CFR Part 60, Appendix
B. If after 720 hours the like-kind replacement analyzer isn't certified, then
the emissions data collected beyond that point is considered invalid. The
like-kind replacement analyzers may not be used to report data at the affected
unit or stack for more than 720 hours in a 12 month period, unless the CEMS
passes all certification procedures at the installed location.
(b) Replacement analyzers that are
not like-kind, require performance specification testing that must be completed
within 30 days of being installed. This grace period may not be utilized more
than once every 12 month period for any particular analyzer. .
(c) Performance specification testing must be
conducted within 90 days of a CEMS replacement installation if the emissions
unit has been inoperative for 12 or more consecutive months.
(d) Continuous EPA reference method testing
is allowed as an alternative to performing the specification testing.
(4) Written summaries of test
results must be submitted to the Department within thirty (30) days of the
completion of the test. If specific EPA reference method reporting deadlines
allow longer, this Chapter defers to the EPA deadline. If any of the options of
Section 4(A) (3) (a), (b), (c) or (d) of this Chapter are used,the Bureau must
be notified in writing within 48 hours. This information shall also be included
in the quarterly report along with the number of hours that the option has been
used.
B. A
CEMS is
subject to the following audit requirements.
(1) QA Plan. Each source owner or operator
shall develop and maintain a copy of its written procedures, henceforth known
as the QA program for implementing its quality control procedures for each CEMS
within six (6) months of the initial startup of each CEMS installed. The owner
or operator shall keep a complete copy of its QA plan including updates in a
readily accessible location for a period of at least six years and shall make
these records available to the Department and EPA upon verbal or written
request.
(2) Annual QA Program
Review. Each source owner or operator shall review the QA plan and all data
generated by its implementation at least once each year and revise or update
the QA program, as necessary, based on the results of the annual review. The
revised QA program must be available for on-site review by the Department and
EPA at any time.
(3) Revisions to
QA Plan. The Department may request revision of the QA program at any time
based on the results of emission report reviews, inspections, audits, review of
the QC procedures, or any other information available to the Department and
EPA.
(4) Quarterly Reporting of
Out-of-Control Periods. Pursuant to Section 7 of this Chapter, the Department
shall be informed in the quarterly reports of all out-of-control periods, as
defined in Section (2)(O) of this Chapter. This includes out-of-control periods
as the result of the CD, CGA, RATA, RAA, quarterly audit, ACA, SVA, RCA, or RRA
tests.
(5) QA/
QC Procedures
Specific to
CEMS Monitoring of Commonly Monitored Gaseous Emissions. For a
CEMS
monitoring gaseous emissions of sulfur dioxide, nitrogen oxides, carbon
monoxide, total reduced sulfur, ammonia, volatile organic compounds, oxygen, or
carbon dioxide, the quality assurance requirements and procedures described in
40 CFR Part
60, Appendix F or 40 CFR Part
75, Appendix B, as applicable shall
apply. All requirements specified in 40 CFR Part
60, Procedure 1 of Appendix F
or 40 CFR Part
75, Appendix B, as applicable, shall be met with the following
clarifications:
(a) CEMS Calibration Drift
Test Requirements. A
calibration drift test must be conducted while the source
is in operation. It must be passed at two concentration values daily. After the
initial performance demonstration, an off-line CD test may be used to validate
data if it is followed within 26 hours by an on-line CD test. To be considered
acceptable; neither the on-line nor the off-line CD test is allowed any
unscheduled adjustment in between the two tests. The test may not result in an
out-of-control specification. (Monitor adjustment is allowed immediately after
a CD test.)
If a source fails to conduct and pass the required daily
calibration drift test, then the data is considered invalid starting at the end
of that day and until a passing test is completed. There is a grace period
allowed if the daily calibration drift test is missed due to an emissions unit
outage. In this case the data can be considered valid if a passing daily
calibration drift test is performed within the first eight hours of operation
in the next unit operating day.
Units using multiple span monitors must perform the CD
testing on all ranges that are reasonably expected to be used during that unit
operation day.
(b) CEMS
Cylinder Gas Audit Requirements. The source owner or operator shall conduct and
pass Cylinder Gas Audits (CGA) every calendar quarter that a RAA or RATA is not
conducted. The audit must be conducted while the source is in operation unless
the
Department waives this requirement.
If during a calendar quarter the emission unit has not
operated for at least 168 unit operating hours, then the CGA may be postponed
until a quarter that exceeds the 168 unit operating hour threshold. After four
successive calendar quarters have elapsed without a CGA then the operator has a
grace period of 168 unit operating hours in which to perform a successful audit
or the data from the CEMS will be invalid from that point until a successful
RATA, RAA or CGA can be conducted.
The Department may require written notification of the CGA
scheduled date at any time. Unless waived by the Department, the source owner
or operator shall provide verbal notification to the Department of the date of
the CGA or linearity test ten (10 calendar) days prior to the testing and shall
permit the Department to observe the testing;
Units using multiple span monitors must perform the CGA or
linearity testing, as appropriate, on all scales that are reasonably expected
to be used during the quarter; unless specifically exempt from this requirement
per 40 CFR Part 75.
(c)
CEMS Relative Accuracy Audit Option. A
Relative Accuracy Audit (RAA) as defined
in 40 CFR Part
60, Appendix F, may be performed in place of a CGA. For a
CEMS
where a CGA cannot be performed, a RAA or other audit procedures approved by
the
Department shall be performed in place of the CGA;
(d) CEMS RATA Quarterly Test Requirements.
RATAs must be conducted at least every fourth successive calendar quarter. If
the emission unit has not had 168 unit operating hours in a quarter, then that
quarter shall be excluded in determining the deadline for the next RATA. If the
RATA has not been completed by the end of the eighth calendar quarter since the
quarter of the last RATA, then the RATA must be completed within a 720
unit
operating hour grace period following the end of the eighth successive elapsed
calendar quarter; or the data from the
CEMS will be invalid from that point
until a successful RATA can be conducted.
If an emission unit is shutdown during a quarter in which a
RATA is due, before the RATA can be completed, then there is a grace period of
30 operating days before the data from the CEMS will be considered
invalid.
Where the Department determines through the licensing process
that it is technically infeasible to conduct a RATA, a CGA may be substituted
for any RATA required under this paragraph or subsection 4(B) (6) of this
Chapter, unless the compliance monitor is subject to NSPS, NESHAPS or the Acid
Rain Program standards. Unless waived by the Department, the source owner or
operator shall notify the Department thirty (30) days in advance of the planned
RATA and shall permit the Department to observe the procedure.
(e) CEMS Time Shared Gaseous Audit
Requirement. For a time-shared gaseous CEMS (one analyzer measuring the
pollutant concentration of more than one gas stream), audits must be conducted
on each gas stream.
(6)
CEMS Audit Requirements for Other Gaseous Pollutants. For a
CEMS monitoring
other types of gaseous emissions not listed in Section 4(B) (5) in this Chapter
(for example, mercury and other emerging pollutants of concern), audits shall
be performed in accordance with
Department and EPA procedures. The source owner
or operator may obtain written
Department approval of alternate audit
procedures and frequency intervals by submitting documentation to the
Department demonstrating that the proposed audit procedures are consistent with
those presented in 40 CFR Part
60, Appendix B, and Appendix F.
(7) CERMS Audit Requirements. For a
CERMS,
the owner or operator must follow all the audit requirements listed in section
4(B) (5) in this Chapter. A CD test must be performed for both the gaseous
portion of the system and the flow rate portion of the system as described in
40 CFR Part
60, Appendix B, Specification 6.
(8) COMS Audit Requirements
(a) Daily
COMS Drift Test Requirements. A
zero
calibration drift test and an upscale
calibration drift test as described
in 40 CFR Part
60, Appendix B, Specification 1, Section 8 shall be conducted
daily (while the source is in operation). After the initial performance
demonstration, an off-line CD test may be used to validate data if it is
followed by an on-line CD test within 26 hours. Neither the on-line nor the
off-line CD test, with no unscheduled adjustment in between, shall test
out-of-control. (Monitor adjustment is allowed immediately after a CD test.) If
a source fails to conduct the required daily
calibration drift test then the
data is considered invalid starting at the end of that day and until the test
is successfully completed, except that if the daily
calibration drift test is
missed because of an emissions unit outage, the data may be considered valid if
a successful daily
calibration drift test is performed within the first eight
hours of operation in the next
unit operating day.
(b) Quarterly COMS Audit Requirements.
Quarterly audits shall be performed with the monitor in place in accordance
with the procedures contained in EPA-450/4-92-010, April 1992, "Performance
Audit Procedures for Opacity Monitors", or equivalent procedures previously
approved in writing by the Department. Audits must be conducted every operating
calendar quarter. The audit must be conducted while the source is in operation
unless the Department waives this requirement. If during a quarter the unit has
not had 168 unit operating hours then the audit may be postponed until a
quarter that exceeds the 168 unit operating hour threshold. After four
successive calendar quarters have elapsed without an audit then the operator
has a grace period of 168 unit operating hours in which to perform a successful
audit or the data becomesinvalid from that point until a successful audit can
be conducted.
(c) Annual
COMS Drift
Test Requirements. An annual seven (7)-day length zero/upscale drift
(Operational Test Period) and system response time checks test as defined in 40
CFR Part
60, Appendix B, Specification 1, Section 3 shall be performed and
reported to the
Department following the procedures set forth in 40 CFR Part
60, Appendix B, Specification 1, Section 8.1.
(d) COMS Calibration Attenuator Requirements.
A minimum of three (3)
calibration attenuators (low, mid, and high) shall be
used in the audits described in this Section, as specified in 40 CFR Part
60,
Appendix B, Specification 1, Section 8.1(3). The
calibration attenuators shall
produce outlet pathlength corrected, single-pass opacity values shown in ASTM D
6216-98, section 7.5. For those sources to which any subpart of
40 CFR Parts
60, 63, or 75 is not applicable, selection of the opacity monitor
span value
shall be 100%. The attenuator values shall be 10-20% for the low range, 20-30%
for mid range, and 30-60% for the high range for sources with standards greater
than or equal to 20% opacity and 5-10% for the low range, 10-20% for mid range,
and 20-40% for the high range for sources with standards less than 20%
opacity.
(e) COMS Audit Protocol.
For opacity monitors installed on or after February 7, 2001, and subject to
NSPS, Acid Rain or NESHAPS, the values of the
calibration attenuators used in
the audits described in Section 4(B)(8) above shall be checked at least twice
annually (no closer than four months apart) using the same specifications cited
below. Facilities may use more than one set of certified attenuators during the
year. The date of certification of the attenuators must be no more than six
months before the date of the quarterly
COMS audit.
For all other opacity monitors the values of the calibration
attenuators used in the above audits shall be checked at least once every
twelve (12) months with a spectrophotometer meeting the specifications of 40
CFR Part 60, Appendix B, Specification 1, Section 6.3; or with a secondary
instrument, as defined and described in 40 CFR Part 60, Appendix B,
Specification 1, Section 7.2. If the measured value of the calibration
attenuators differs from the calibrated value by more than ± 2 percent
opacity, the calibration attenuators shall be recalibrated or replaced until
the measured value does not differ from the calibrated value by more than
± 2 percent opacity.
(f) COMS Quarterly Audit Notification
Requirements. The source owner or operator shall perform quarterly audits
described in Section 4(B) (8) (b) of this Chapter and the annual drift test and
response time test described in Section 4(B) (8) (c) of this Chapter. The
source owner or operator shall notify the Department, in writing, thirty (30)
days in advance of the planned audit or test and shall permit the Department to
observe the procedure.
(9) Particulate Matter (PM)
CEMS Audit
Requirements
(a) Quarterly PM
ACA Audits.
Conduct an
ACA (and a
SVA, as applicable), at least once each calendar quarter
unless a
RRA or
RCA is conducted during that quarter. If during a quarter the
unit has not had 168 unit operating hours then the audit may be postponed until
a quarter that exceeds the 168
unit operating hour threshold. After four
successive calendar quarters have elapsed without an audit then the operator
has a grace period of 168 unit operating hours in which to perform a successful
audit or the data becomes invalid from that point until a successful audit can
be conducted. The audits shall be performed with the monitor in place in
accordance with the procedures contained in 40 CFR part
60 Appendix F,
Procedure 2, section 10.3.
(b)
Frequency of PM
RRA or
RCA Audits. Conduct a
RRA or a
RCA at the frequency
specified in the applicable regulation or facility operating permit. The
RRA
shall be performed with the monitor in place in accordance with the procedures
contained in 40 CFR part
60 Appendix F, Procedure 2, section 10.3. The
RCA
shall be performed with the monitor in place in accordance with the procedures
contained in 40 CFR part
60 Appendix B, PS-11, section 8.6, except the minimum
number of runs required is 12 instead of the 15 specified in PS-11.
(c) PM Alternative Audit Procedure Options.
Alternative audit procedures may be substituted for the ACAs upon approval by
the Department and EPA.
(10) Quarterly CEMS Audit Timing. All
required quarterly audits may be done anytime during each calendar quarter, but
successive quarterly audits shall occur no closer than sixty (60) days apart
unless waived by the Department and EPA.
(11) CEMS Audit Reporting Requirements.
Within thirty (30) days of the completion of a
CEMS audit, the source owner or
operator shall submit a written report summarizing the results of the audit in
accordance with the following:
(a) For a
CERMS, gaseous or PM
CEMS audit, the report format shall conform to that
presented in 40 CFR Part
60, Appendix F, Procedure 1, Section 7; and
(b) For a COMS audit, the report format shall
conform to that presented in "Performance Audit Procedures for Opacity
Monitors" EPA-450/4-92-010, April 1992, or equivalent procedures previously
approved in writing by the Department.
(12) CEMS Audit Accuracy Verification
Requirements. The Department may choose to conduct an independent CEMS audit to
verify the accuracy of a source's CEMS.
