An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Louisiana SIP: LAC 33:III Ch. 15 Section 1511.B - Continuous Emission Monitoring

Regulatory Text: 
Louisiana Administrative Code, Title 33 ENVIRONMENTAL QUALITY, Part III Air (LAC 33:III)

Chapter 15.  Emission Standards for Sulfur Dioxide

Section 1511. Continuous Emissions Monitoring
As approved by EPA July 5, 2011 (76 FR 38977) effective August 4, 2011 (LAd34) LA021 docket ID:  EPA-R06-OAR-2007-0924

Unless otherwise indicated, paragraphs are as adopted in the Louisiana Register 
April 20, 1992 (LR 18:0375) (AQ057) and approved by EPA July 15, 1993 (58 FR 38060) 
effective September 13, 1993 (LAc59)

   A.  The owner or operator of any facility subject to the provisions of this Chapter shall install, calibrate, maintain and operate a measurement system or systems, installed in accordance with the manufacturers instructions, for continuously monitoring sulfur dioxide concentrations in the effluent of each process subject to this Chapter consistent with LAC 33:III.915.  The administrative authority shall not require continuous monitoring for flares and sources emitting less than 100 tons per year of sulfur dioxide into the atmosphere or as identified in 40 CFR, Part 51, Appendix "P".  "Continuous monitoring" is defined as sampling and recording of at least one measurement of sulfur dioxide concentration in each 15-minute period from the effluent of each affected process or the emission control system serving each affected process.

AQ145   §1511.B;LAd34;LA021.02;AQ145;LR22:1212,p5(10/20/1996)
   B. These measurement systems shall be certified according to the 
performance specifications in Performance Specification 2 (40 CFR part 60, 
appendix B as incorporated by reference at LAC 33:III.3003) and quality 
assured by the procedures in 40 CFR 60, appendix “F”.

   C.  As an alternative to continuous monitoring of sulfur dioxide emissions the administrative authority* may approve demonstration of compliance by monitoring the fuel hydrogen sulfide content and calculation of sulfur dioxide emissions for sources which burn fuel gas or refinery gas in multiple combustion units or by monitoring input sulfur and calculation of sulfur dioxide emissions for sources which burn or decompose sulfur-containing fuel and/or feedstock.