[Title 40 CFR 60.106a]
[Code of Federal Regulations (annual edition) - July 1, 2009 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 60 - STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--]
[Subpart Ja - Standards of Performance for Petroleum Refineries for Which]
[Sec. 60.106a - Monitoring of emissions and operations for sulfur recovery plants.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.106aSec. 60.106aPROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Petroleum Refineries for Which
Sec. 60.106a  Monitoring of emissions and operations for sulfur recovery plants.

    (a) The owner or operator of a sulfur recovery plant that is subject 
to the emissions limits in Sec. 60.102a(f)(1) or Sec. 60.102a(f)(2) 
shall:
    (1) For sulfur recovery plants subject to the SO2 
emission limit in Sec. 60.102a(f)(1)(i) or Sec. 60.102a(f)(2)(i), the 
owner or operator shall install, operate, calibrate, and maintain an 
instrument for continuously monitoring and recording the concentration 
(dry basis, zero percent excess air) of any SO2 emissions 
into the atmosphere. The monitor shall include an oxygen monitor for 
correcting the data for excess air.

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    (i) The span values for this monitor are two times the applicable 
SO2 emission limit and between 10 and 25 percent 
O2, inclusive.
    (ii) The owner or operator shall install, operate, and maintain each 
SO2 CEMS according to Performance Specification 2 of appendix 
B to part 60.
    (iii) The owner or operator shall conduct performance evaluations of 
each SO2 monitor according to the requirements in Sec. 
60.13(c) and Performance Specification 2 of appendix B to part 60. The 
owner or operator shall use Methods 6 or 6C of appendix A-4 to part 60 
and Method 3 or 3A of appendix A-2 of part 60 for conducting the 
relative accuracy evaluations. The method ANSI/ASME PTC 19.10-1981, 
``Flue and Exhaust Gas Analyses,'' (incorporated by reference--see Sec. 
60.17) is an acceptable alternative to EPA Method 6.
    (2) For sulfur recovery plants that are subject to the reduced 
sulfur compound and H2S emission limit in Sec. 
60.102a(f)(1)(ii) or Sec. 60.102a(f)(2)(ii), the owner or operator 
shall install, operate, calibrate, and maintain an instrument for 
continuously monitoring and recording the concentration of reduced 
sulfur, H2S, and O2 emissions into the atmosphere. 
The reduced sulfur emissions shall be calculated as SO2 (dry 
basis, zero percent excess air).
    (i) The span values for this monitor are two times the applicable 
reduced sulfur emission limit, two times the H2S emission 
limit, and between 10 and 25 percent O2, inclusive.
    (ii) The owner or operator shall install, operate, and maintain each 
reduced sulfur CEMS according to Performance Specification 5 of appendix 
B to part 60.
    (iii) The owner or operator shall conduct performance evaluations of 
each reduced sulfur monitor according to the requirements in Sec. 
60.13(c) and Performance Specification 5 of appendix B to part 60. The 
owner or operator shall use Methods 15 or 15A of appendix A-5 to part 60 
for conducting the relative accuracy evaluations. The method ANSI/ASME 
PTC 19.10-1981, ``Flue and Exhaust Gas Analyses,'' (incorporated by 
reference--see Sec. 60.17) is an acceptable alternative to EPA Method 
15A of appendix A-5 to part 60.
    (iv) The owner or operator shall install, operate, and maintain each 
H2S CEMS according to Performance Specification 7 of appendix 
B to part 60.
    (v) The owner or operator shall conduct performance evaluations of 
each reduced sulfur monitor according to the requirements in Sec. 
60.13(c) and Performance Specification 5 of appendix B to part 60. The 
owner or operator shall use Methods 11, 15, or 15A of appendix A-5 to 
part 60 or Method 16 of appendix A-6 to part 60 for conducting the 
relative accuracy evaluations. The method ANSI/ASME PTC 19.10-1981, 
``Flue and Exhaust Gas Analyses,'' (incorporated by reference--see Sec. 
60.17) is an acceptable alternative to EPA Method 15A of appendix A-5 to 
part 60.
    (vi) The owner or operator shall install, operate, and maintain each 
O2 monitor according to Performance Specification 3 of 
appendix B to part 60.
    (vii) The span value for the O2 monitor must be selected 
between 10 and 25 percent, inclusive.
    (viii) The owner or operator shall conduct performance evaluations 
for the O2 monitor according to the requirements of Sec. 
60.13(c) and Performance Specification 3 of appendix B to part 60. The 
owner or operator shall use Methods 3, 3A, or 3B of appendix A-2 to part 
60 for conducting the relative accuracy evaluations. The method ANSI/
ASME PTC 19.10-1981, ``Flue and Exhaust Gas Analyses,'' (incorporated by 
reference--see Sec. 60.17) is an acceptable alternative to EPA Method 
3B of appendix A-2 to part 60.
    (ix) The owner or operator shall comply with the applicable quality 
assurance procedures of appendix F to part 60 for each monitor, 
including annual accuracy determinations for each O2 monitor, 
and daily calibration drift determinations.
    (3) In place of the reduced sulfur monitor required in paragraph 
(a)(2) of this section, the owner or operator shall install, calibrate, 
operate, and maintain an instrument using an air or O2 
dilution and oxidation system to convert any reduced sulfur to 
SO2 for continuously monitoring and recording the 
concentration (dry basis, 0 percent excess air) of the total resultant 
SO2.

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The monitor must include an O2 monitor for correcting the 
data for excess O2.
    (i) The span value for this monitor is two times the applicable 
SO2 emission limit.
    (ii) The owner or operator shall conduct performance evaluations of 
each SO2 monitor according to the requirements in Sec. 
60.13(c) and Performance Specification 5 of appendix B to part 60. The 
owner or operator shall use Methods 15 or 15A of appendix A-5 to part 60 
for conducting the relative accuracy evaluations. The method ANSI/ASME 
PTC 19.10-1981, ``Flue and Exhaust Gas Analyses,'' (incorporated by 
reference--see Sec. 60.17) is an acceptable alternative to EPA Method 
15A of appendix A-5 to part 60.
    (iii) The owner or operator shall install, operate, and maintain 
each O2 monitor according to Performance Specification 3 of 
appendix B to part 60.
    (iv) The span value for the O2 monitor must be selected 
between 10 and 25 percent, inclusive.
    (v) The owner or operator shall conduct performance evaluations for 
the O2 monitor according to the requirements of Sec. 
60.13(c) and Performance Specification 3 of appendix B to part 60. The 
owner or operator shall use Methods 3, 3A, or 3B of appendix A-2 to part 
60 for conducting the relative accuracy evaluations. The method ANSI/
ASME PTC 19.10-1981, ``Flue and Exhaust Gas Analyses,'' (incorporated by 
reference--see Sec. 60.17) is an acceptable alternative to EPA Method 
3B of appendix A-2 to part 60.
    (vi) The owner or operator shall comply with the applicable quality 
assurance procedures of appendix F to part 60 for each monitor, 
including quarterly accuracy determinations for each SO2 
monitor, annual accuracy determinations for each O2 monitor, 
and daily calibration drift determinations.
    (b) Excess emissions. For the purpose of reports required by Sec. 
60.7(c), periods of excess emissions for sulfur recovery plants subject 
to the emissions limitations in Sec. 60.102a(f) are defined as 
specified in paragraphs (b)(1) through (3) of this section. Note: 
Determine all averages as the arithmetic average of the applicable 1-
hour averages, e.g., determine the rolling 12-hour average as the 
arithmetic average of 12 contiguous 1-hour averages.
    (1) All 12-hour periods during which the average concentration of 
SO2 as measured by the SO2 continuous monitoring 
system required under paragraph (a)(1) of this section exceeds the 
applicable emission limit (dry basis, zero percent excess air); or
    (2) All 12-hour periods during which the average concentration of 
reduced sulfur (as SO2) as measured by the reduced sulfur 
continuous monitoring system required under paragraph (a)(2) of this 
section exceeds the applicable emission limit; or
    (3) All 12-hour periods during which the average concentration of 
H2S as measured by the H2S continuous monitoring 
system required under paragraph (a)(2) of this section exceeds the 
applicable emission limit (dry basis, 0 percent excess air).