[Title 40 CFR 60.175]
[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 Q - Standards of Performance for Primary Zinc Smelters]
[Sec. 60.175 - Monitoring of operations.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.175Sec. 60.175PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Primary Zinc Smelters
Sec. 60.175  Monitoring of operations.

    (a) The owner or operator of any primary zinc smelter subject to the 
provisions of this subpart shall install and operate:
    (1) A continuous monitoring system to monitor and record the opacity 
of gases discharged into the atmosphere from any sintering machine. The 
span of this system shall be set at 80 to 100 percent opacity.
    (2) A continuous monitoring system to monitor and record sulfur 
dioxide emissions discharged into the atmosphere from any roaster 
subject to Sec. 60.173. The span of this system shall be set at a 
sulfur dioxide concentration of 0.20 percent by volume.
    (i) The continuous monitoring system performance evaluation required 
under Sec. 60.13(c) shall be completed prior to the initial performance 
test required under Sec. 60.8.
    (ii) For the purpose of the continuous monitoring system performance 
evaluation required under Sec. 60.13(c), the reference method referred 
to under the Relative Accuracy Test Procedure in Performance 
Specification 2 of appendix B to this part shall be Method 6. For the 
performance evaluation, each concentration measurement shall be of 1 
hour duration. The pollutant gas used to prepare the calibration gas 
mixtures required under Performance Specification 2 of appendix B, and 
for calibration checks under Sec. 60.13(d), shall be sulfur dioxide.
    (b) Two-hour average sulfur dioxide concentrations shall be 
calculated and recorded daily for the 12 consecutive 2-hour periods of 
each operating day. Each 2-hour average shall be determined as the 
arithmetic mean of the appropriate two contiguous 1-hour average sulfur 
dioxide concentrations provided by the continuous monitoring system 
installed under paragraph (a) of this section.
    (c) For the purpose of reports required under Sec. 60.7(c), periods 
of excess emissions that shall be reported are defined as follows:
    (1) Opacity. Any 6-minute period during which the average opacity, 
as measured by the continuous monitoring system installed under 
paragraph (a) of this section, exceeds the standard under Sec. 
60.174(a).
    (2) Sulfur dioxide. Any 2-hour period, as described in paragraph (b) 
of this section, during which the average emissions of sulfur dioxide, 
as measured by the continuous monitoring system installed under 
paragraph (a) of this section, exceeds the standard under Sec. 60.173.

[41 FR 2340, Jan. 15, 1976, as amended at 48 FR 23611, May 25, 1983; 54 
FR 6668, Feb. 14, 1989]