[Federal Register: May 5, 2003 (Volume 68, Number 86)]
[Proposed Rules]
[Page 23661-23662]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr05my03-40]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[IN152-1b; FRL-7481-2]
Approval and Promulgation of Implementation Plans; Indiana
AGENCY: Environmental Protection Agency (EPA).
[[Page 23662]]
ACTION: Proposed rule.
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SUMMARY: The EPA is proposing to approve revisions to volatile organic
compound (VOC) regulations in 326 Indiana Administrative Code (IAC) 8-
1-2. Indiana submitted a request for this State Implementation Plan
(SIP) revision on October 21, 2002 and January 10, 2003. These
regulations affect miscellaneous metal coating operations performing
dip or flow coating. One revision is that dip and flow coating
operators may now use a rolling 30-day average to meet VOC content
limits. This replaces a daily compliance requirement. EPA has
determined that the extended averaging period is more practical for
these sources because of the difficulties associated with
intermittently adding solvent and the higher transfer efficiency
associated with dip and flow coating operations. Solvent is
intermittently added to the coating tank to maintain proper viscosity.
Dip and flow coating generally has a higher transfer efficiency, which
results in lower emissions, than spray coating. Indiana also added new
equivalent emission limits for dip and flow coating, and made some
additional, minor revisions. The requested revisions will aid dip and
flow coating sources. Dip and flow coating uses less coating compared
to spray coating, lowering total emissions. By providing alternative
compliance options, dip and flow coating sources do not have to switch
to spray coating to be able to demonstrate compliance.
DATES: The EPA must receive written comments by June 4, 2003.
ADDRESSES: You should mail written comments to: J. Elmer Bortzer,
Chief, Regulation Development Section, Air Programs Branch (AR-18J),
U.S. Environmental Protection Agency, Region 5, 77 West Jackson
Boulevard, Chicago, Illinois 60604.
You may inspect copies of Indiana's submittal at: Regulation
Development Section, Air Programs Branch (AR-18J), U.S. Environmental
Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago,
Illinois 60604.
FOR FURTHER INFORMATION CONTACT: Matt Rau, Environmental Engineer,
Regulation Development Section, Air Programs Branch (AR-18J), U.S.
Environmental Protection Agency, Region 5, 77 West Jackson Boulevard,
Chicago, Illinois 60604, Telephone: (312) 886-6524.
SUPPLEMENTARY INFORMATION: Throughout this document wherever ``we,''
``us,'' or ``our'' are used we mean the EPA.
Table of Contents
I. What actions are the EPA taking today?
II. Where can I find more information about this proposal and the
corresponding direct final rule?
I. What Actions Are the EPA Taking Today?
The EPA is proposing to approve revisions to 326 IAC 8-1-2. The
revised rule includes a new compliance method for dip coating and flow
coating operations. Prior to these revisions, dip and flow coating
facilities were required to use daily averaging to meet VOC content
limits. The revised rules allow for calculating the VOC content on a
30-day rolling average basis for dip or flow coating only. The extended
averaging period is more practical for these sources because of the
difficulties associated with intermittently adding solvent and the
higher transfer efficiency associated with dip and flow coating
operations. Solvent is intermittently added to the coating tank to
maintain proper viscosity. Dip and flow coating generally has a higher
transfer efficiency than spray coating, which results in lower VOC
emissions.
Indiana also added new equivalent emission limits at 326 IAC 8-1-
2(a)(9)(A) for dip and flow coating operations. Equivalent emission
limits are expressed in terms of mass VOC per volume of coating solids.
Indiana also made several minor revisions to 326 IAC 8-1-2. Most of
these revisions are simple rewording or adding a word or phrase for
clarity to portions of the rule.
II. Where Can I Find More Information About This Proposal and the
Corresponding Direct Final Rule?
For additional information see the direct final rule published in
the rules section of this Federal Register.
Dated: April 2, 2003.
Bharat Mathur,
Acting Regional Administrator, Region 5.
[FR Doc. 03-10998 Filed 5-5-03; 8:45 am]
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