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From: Bilskis, Patricia A. [mailto:Patricia.Bilskis@alcoa.com] Sent: Monday, January 06, 2014 6:57 PM To: Putney, David Cc: Palazzolo, Michael A.; Mitchell, Kathryn M Subject: RE: Draft emissions file for the Alcoa primary aluminum facilities DavidThanks so much for the opportunity to review the emission rates tused in the risk modeling. There were only a few emission rates that needed to be corrected Intalco. I have corrected the emission rates in the spreadsheet, 

listed them below so that you know what to look for. The correctare in yellow highlight, within the column titled “Revised Actual (tpy)”. 

Emission Unit ID

Emission Unit Description

Process ID

Emission Release Point ID

Pollutant Code

Pollutant Description

Actual Emissions (tpy)

Revised Actual Emissions (tpy)

Basis for change

03 Anode Bake 

Furnace 

01b 03 7664393 Hydrogen 

Fluoride 

5.850708 0.89088 Intalco sourc

test data. 

13 

Potline Roof Vent 01 13 

7664393 Hydrogen 

Fluoride 

12.76666667 7.163 Intalco sourc

test data. 

13 

Potline Roof Vent 01c 12 

7664393 Hydrogen 

Fluoride 

12.76666667 7.163 Intalco sourc

test data. 

13 

Potline Roof Vent 01d 11a 

7664393 Hydrogen 

Fluoride 

12.76666667 7.163 Intalco sourc

test data. 

14 

Potline Roof Vent 01 14 

7664393 Hydrogen 

Fluoride 

12.76666667 7.163 Intalco sourc

test data. 

15 

Potline Roof Vent 01 15 

7664393 Hydrogen 

Fluoride 

12.76666667 7.163 Intalco sourc

test data. 

16 

Potline Roof Vent 01 16 

7664393 Hydrogen 

Fluoride 

12.76666667 7.163 Intalco sourc

test data. 

The source X and Y coordinates were spot checked and appear to be submitted to you in January 2011. 
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Please feel free to contact me if you have any questions. Thanks! Patricia Bilskis Intalco Aluminum Corporation 4050 Mountain View Road Ferndale WA, 98248 Ph. 360-201-3430 

From: Putney, David [mailto:putney.david@epa.gov] Sent: Wednesday, December 18, 2013 6:33 AM To: Palazzolo, Michael A.; Bruntz, Samuel H.; Dobbs, Charles L.; Hulse, David G.; Parent, Jordan J.; Mitchell, Kath

Bilskis, Patricia A.; Blodgett, Terry L. Subject: EXT: Draft emissions file for the Alcoa primary aluminum facilities 

Hello Mike et. al., Please find attached to this message a draft emissions file spreadsheet) for the Alcoa, Inc. primary aluminum production facilities. Columns highlighted in yellow are available for or to indicate if records should be deleted. Please do not the data in columns that are not highlighted in yellow as thcomplicate the development of the final emissions file for umodeling. The tab titled “primary al category12172” includes emissions primary aluminum production operations (e.g., potlines, pastpitch storage tanks, and anode bake furnaces) at the Alcoa festimated via emission factors developed from test results oresponse to the testing ICR sent out in April of 2013. I exp
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stack parameters are correct as-is since industry previously opportunity to review those items in CY2010 before the initirisk and technology review (RTR) proposal for the primary alproduction source category. There are, however, some emissiometal HAP, dioxins, PCB, etc.) that are new to the RTR analyprimary aluminum production source category and, although thbeen QA/QC’d by contractor and EPA staff, we do welcome feedback/corrections you might have on these emissions. A rcolumn highlighted in yellow is provided for you to revise eunits of tons per year, tpy) if needed. The tab titled “noncategory” includes 2005 NATA NEI, 2008 NEstate HAP data for the Alcoa, Inc. primary aluminum productifacilities (note that we did not find any non-category emissfor either the Intalco facility or the Wenatchee facility). records are intended to include emissions from operations at facility which are not directly associated with primary alumproduction (primary aluminum emissions are addressed under ttab, discussed above) or secondary aluminum production (secoaluminum emissions will be addressed via the RTR associated secondary aluminum source category). Revision columns highliyellow are included for emissions, pollutants, stack parametfugitive parameters and latitude/longitude. If any of these needs modification, please put the corrected value in the asrevision column (again, please do not overwrite the data in are not highlighted in yellow). Note that fields were also identify if a record should be deleted, and a reviewer commewhere you can add a comment if appropriate. Please review thwith the following in mind: 
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1. Should the operation be included in the spreadsheet? 

a. Does the operation still exist at the facility? If not, or if it exists but is not legally allowed to opera

have a valid operating permit for this operation) then the operation and associated emissions nee

b. If the operation does exist at the facility, is it part of any secondary aluminum operations that ma

If so, then the operation and associated emissions need not be included (so as to avoid double co

emissions). 

c. If the operation does exist at the facility, would the emissions from this operation be considered 

primary aluminum emissions? For example, if the emissions associated with the operation in que

through the control device associated with the paste plant and would be monitored as part of the 

then the operation and associated emissions need not be included (so as to avoid double countin

2. If the operation should be included, are the cited emissions representative of that operation? 3. If the operation should be included but the cited emissions are not representative of that operation, the

representative annual actual emissions in units of tons emitted per year (tpy). 

4. Verify or modify the stack parameters and location as appropriate and necessary. 

If I might make a suggestion – you can use the filter functito narrow down the file to review a single facility at a timMike – I do not have any information for a contact at the Lafacility. Would you please pass this email and attachment alsomeone at that facility that could review this information? you please forward me that person’s contact information? Please provide any comments, changes, corrections, etc. to tme by close of business on Friday, 01/03/14. I understand thmight be preferable with the holidays upon us, but please gi
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you can by 01/03/14 and remember that you will have another to make comments and corrections during the upcoming public comment period associated with the primary aluminum productisupplemental proposal. If you have any questions concerning these issues, please fecontact me by email or telephone. Thanks, David Putney, Environmental Engineer U.S. Environmental Protection Agency Office of Air Quality Planning and Standards Sector Policies and Programs Division 109 T.W. Alexander Drive, RTP, NC 27711 Mail Drop D243-02 Ph: (919) 541-2016 Fax: (919) 541-3207 Email: putney.david@epa.gov