Louisiana SIP: LAC 33:III Ch. 15 Section 1503 - Emission Standards for Sulfur Dioxide
Louisiana Administrative Code, Title 33 ENVIRONMENTAL QUALITY, Part III Air (LAC 33:III)
Chapter 15. Emission Standards for Sulfur Dioxide
Section 1503. Emission Limitations
As approved by EPA July 5, 2011 (76 FR 38977) effective August 4, 2011 (LAd34) LA021
Regulations.gov docket ID: EPA-R06-OAR-2007-0924
Unless otherwise indicated, paragraphs are as adopted in the Louisiana Register
April 20, 1992 (LR 18:0374) (AQ057) and approved by EPA July 15, 1993 (58 FR 38060)
effective September 13, 1993 (LAc59)
AQ171* §1503.Introductory paragraph;LAd34;LA021.05;AQ171*;LR24:1284(7/20/1998)
As used in this Section a three-hour average means the
average emissions for any three consecutive one-hour periods
(each commencing on the hour), provided that the number of
three-hour periods during which the SO2 limitation is
exceeded is not greater than the number of one-hour periods
during which the SO2 limitation is exceeded.
A. Sulfuric Acid Plants-New and Existing. The emissions
of sulfur dioxide and acid mist from new sulfuric acid
production units that commence construction or modification
after August 17, 1971, shall be limited to that specified in
40 CFR 60.82 and 60.83, as incorporated by reference in
LAC 33:III.Chapter 30, i.e., 4.0 pounds/ton of 100 percent
H2S04 (2 kilograms/metric ton) and 0.15 pounds/ton of
100 percent H2SO4 (.075 kilograms/metric ton) respectively
(three-hour averages). Emissions from existing units shall be
limited as follows: SO2--not more than 2000 ppm by volume
(three-hour average); acid mist--not more than
0.5 pounds/ton of 100 percent H2SO4 (three-hour average).
B. Sulfur Recovery Plants-New and Existing. The
emission of sulfur oxides calculated as sulfur dioxide from a
new sulfur recovery plant that commences construction or
modification after October 4, 1976, shall be limited to that
specified in 40 CFR 60.104(a)(2), as incorporated by
reference in LAC 33:III.Chapter 30. The emission of sulfur
oxides calculated as sulfur dioxide from an existing plant shall
be limited to a sulfur dioxide concentration of not more than
1,300 ppm by volume (three-hour average).
C. All Other Sources-New and Existing not elsewhere discussed. No person shall discharge gases from the subject sources which contain concentrations of SO2, which exceed 2000 parts per million (ppm) by volume at standard conditions (three-hour average), or any applicable Federal NSPS emission limitation, whichever is more stringent. Units emitting less than 250 tons per year of sulfur compounds measured as sulfur dioxide may be exempted from the 2000 ppm(v) limitation by the administrative authority.
D. Measurement of Concentrations
1. Analytical Methods. The methods listed in Table 4 or such equivalent method as may be approved by the administrative authority* shall be utilized to determine sulfur dioxide and sulfuric acid mist concentrations in stack gases. These methods are to be used for initial compliance determinations and for additional compliance determinations for those facilities not subject to continuous emission monitoring.
2. Calibration of Equipment Required. Measurement equipment shall be periodically calibrated to comply with minimal American Bureau of Standards Criteria.
Section 1503.D.2. TABLE 4. Emissions--Methods of Contaminant Measurement---In next document.