[Federal Register Volume 65, Number 129 (Wednesday, July 5, 2000)]
[Proposed Rules]
[Page 41391]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-16362]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[IN128-1b; FRL-6713-2]


Approval and Promulgation of Implementation Plan; Indiana

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve revised opacity limits for three 
casting complexes at ALCOA Warrick Operations, which were submitted by 
the Indiana Department of Environmental Management (IDEM) on January 
13, 2000 as amendments to its State Implementation Plan (SIP). ALCOA 
Warrick Operations is a primary aluminum smelter located in Newburgh, 
Indiana. The revised limits allow higher opacity emissions during 
fluxing operations at three casting complexes. This action does not 
reverse applicable mass emissions limits.

DATES: EPA must receive written comments by August 4, 2000.

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 the State submittal and EPA's analysis of 
it 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: David Pohlman, Environmental 
Scientist, Regulation Development Section, Air Programs Branch (AR-
18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson 
Boulevard, Chicago, Illinois 60604, (312) 886-3299.

SUPPLEMENTARY INFORMATION: Throughout this document wherever ``we,'' 
``us,'' or ``our'' are used we mean EPA.

Table of Contents

I. What action is EPA taking today?
II. Where can I find more information about this proposal and the 
corresponding direct final rule?

I. What Action Is EPA Taking Today?

    We are proposing to approve revised opacity limits for three 
casting complexes at ALCOA Warrick Operations, which were submitted by 
IDEM on January 13, 2000. The revised limits allow for higher opacity 
emissions during fluxing operations at three casting complexes.

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: May 31, 2000.
David A. Ullrich,
Acting Regional Administrator, Region 5.
[FR Doc. 00-16362 Filed 7-3-00; 8:45 am]
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