Regulatory Text: 
Oklahoma Administrative Code.  Title 252.  Department of Environmental Quality 

Chapter 100.  Air Pollution Control (OAC 252:100)

SUBCHAPTER 31.  CONTROL OF EMISSION OF SULFUR COMPOUNDS

PART 2.   AMBIENT AIR CONCENTRATION LIMITS OR IMPACTS FOR NEW AND EXISTING EQUIPMENT, SOURCES, OR FACILITIES
As approved by EPA August 1, 2019 (84 FR37579), SIP effective September 3, 2019 (OKd27),
Regulations.gov docket EPA-R06-OAR-2017-0145.

252:100-31-7. Allowable hydrogen sulfide (H₂S) ambient air concentrations for new and existing sources,
SIP effective September 3, 2019 (OKd27)
As adopted in Oklahoma Register June 15, 2012 (29 OkReg 996) effective July 1, 2012,
Submitted to EPA February 14, 2017 (OK-58),
Regulations.gov document EPA-R06-OAR-2017-0145-0003 [OK028.03] page 562.
Approved by EPA August 1, 2019 (84 FR 37579) SIP effective September 3, 2019 (OKd27),
Regulations.gov docket EPA-R06-OAR-2017-0145 [OK028].

     (a)  [Reserved]

     (b)  Hydrogen sulfide. Emissions of H₂S from any facility
shall not cause an ambient air concentration of H2S greater
than 0.2 ppm at standard conditions, 24-hour average.

     (c)  Exceptions. The standards set in this section
shall not apply to ambient air concentrations
or impacts occurring on the property from which such
emission occurs, providing such property, from the emission
point to the point of any such concentration, is controlled by
the person responsible for such emission.

     (d)  Compliance assurance. Upon approval of the Director,
facility operators may use appropriate material balances,
performance test data, and/or emission factors to determine stack
emissions combined, when necessary, with the appropriate
EPA-approved atmospheric dispersion models
to determine ambient air concentration or impact in lieu of
ambient air monitoring as proof of compliance with the
limit set in this section.

***End 252:100-31-7 SIP effective 9-3-2019***OKd27***OK028***z8s***