The owner or operator of each batch process operation in the
Beaumont-Port Arthur, Bexar County, and Houston-Galveston-Brazoria
areas shall determine the mass emissions and flow rates as follows.
(1) Determination of Uncontrolled Annual Emission Total.
The owner or operator shall determine the annual mass emissions total
by using engineering estimates of the uncontrolled emissions from
a process vent or group of process vents within a batch process train
and multiplying by the potential or permitted number of batch cycles
per year. Engineering estimates must follow the guidance contained
in EPA's Control of Volatile Organic Compound
Emissions from Batch Processes - Alternative Control Techniques Information
Document (EPA-453/R-93-020, February 1994). Alternatively,
if an emissions measurement is used to measure vent emissions, the
measurement must conform with the requirements of measuring incoming
mass flow rate of volatile organic compounds as specified in §115.165
of this title (relating to Approved Test Methods and Testing Requirements).
(2) Determination of Average Flow Rate. To obtain a
value for average flow rate, the owner or operator may choose to measure
the flow rates or to estimate the flow rates using the estimation
methods contained in EPA's Control of Volatile
Organic Compound Emissions from Batch Processes - Alternative Control
Techniques Information Document (EPA-453/R-93-020, February
1994). For existing manifolds, the average flow rate may be the flow
rate that was assumed in the design.
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Source Note: The provisions of this §115.164 adopted to be effective November 18, 1999, 24 TexReg 10095; amended to be effective January 18, 2001, 26 TexReg 493; amended to be effective May 16, 2024, 49 TexReg 3292 |