### 1

From: Robert Strieter <rstrieter@aluminum.org>

To: Rochelle Boyd/RTP/USEPA/US@EPA

Date: 12/14/2010 02:19 PM

Subject: RE: EPA

- HQ

- OAR

- 2002

- 0031

- 0017[1].pdf

- Adobe Reader

Rochelle:

The revised capacity ratings for US primary plants is attached. USGS data was the basis, with permanent shut

downs included for the 2010 column in red text.

Bob

Bob Strieter

VP

- EHS

The Aluminum Association

bstriete@aluminum.org

703 358

- 2980

cell 571 224

- 6598

1525 Wilson Blvd

Suite 600

Arlington, VA 22209

S AVE THE DATE

Spring Meeting: April 7

- 9, 2011

Sanibel Harbour Marriott Resort & Spa

Fort Meyers, Florida

Follow us at: www.aluminum.org and on twitter.com/AluminumNews

From: Boyd.Rochelle@epamail.epa.gov [ mailto:Boyd.Rochelle@epamail.epa.gov ]

Sent: Tuesday, November 09, 2010 3:19 PM

To: Robert Strieter

Cc: Michael.Palazzolo@alcoa.com

Subject: RE: EPA

- HQ

- OAR

- 2002

- 0031

- 0017[1].pdf

- Adobe Reader

Ok, thanks. I saw Mik e Palazzolo today and I told him some of the issues that we are faced with on

Primary Aluminum.

I found out last week that I have to do a MACT Limit for the prebake potlines and the existing storage

tanks. In the absence of adequate data I am fearing tha t I may have to do an ICR for Primary Aluminum

and we have little time. We may also have to address Carbonyl Sulfide, not sure yet. We started plotting

the lat/longs from the ANPR and they are not looking too accurate. We plan to send those back to the

facility. I would like to set up a conference call in the next week or so to talk about some of these issues.

Rochelle Boyd, Environmental Engineer

U.S. Environmental Protection Agency

Office of Air Quality Planning and Standards

Sector Policies and Pro grams Division

109 T.W. Alexander Drive, RTP, NC 27711

Mail Drop D243

- 02

Ph: (919) 541

- 1390 Fax: (919) 541

- 3207

Email: boyd.rochelle@epa.gov

### 2

From: Robert Strieter < bstriete@aluminum.org >

To: Rochelle Boyd/RTP/USEPA/US@EPA

Date: 11/09/2010 02:45 PM

Subject: RE: EPA

- HQ

- OAR

- 2002

- 0031

- 0017[1].pdf

- Adobe Reader

Rochelle:

FYI, I have requested other primary aluminum members for any data they may have to address this

request. Not sure what other facilities may have open

- path HF monitors for potrooms, but we will see.

Regards,

Bob

Bob Strieter

VP

- EHS

The Aluminum Association

bstriete@aluminum.org

703 358

- 2980

cell 571 224

- 6598

1525 Wilson Blvd

Suite 600

Arlington, VA 22209

SAVE THE DATE

Spring Meeting: April 7

- 9, 2011

Sanibel Harbour Marriott Resort & Spa

Fort Meyers, Florida

Follow us at: www.aluminum.org and on twitter.com/AluminumNews

----- Original Message

-----

From: Boyd.Rochelle@epamail.epa.g ov [ mailto:Boyd.Rochelle@epamail.epa.gov ]

Sent: Thursday, November 04, 2010 12:40 PM

To: Robert Strieter

Cc: Palazzolo, Michael A.

Subject: RE: EPA

- HQ

- OAR

- 2002

- 0031

- 0017[1].pdf

- Adobe Reader

It would also be helpful to know how widely the results for these 2 potlines might be expected to apply to

the rest of the potlines across this facility and the rest of the source category. This is the question I will be

faced with from the workgroup. Do we have any other data from a non

- Alcoa facility that we could obtain

through the Aluminum Association members?

Rochelle Boyd, Environmental Engineer

U.S. Environmental Protection Agency

### 3

Office of Air Quality Planning and Standards

Sector Policies and P rograms Division

109 T.W. Alexander Drive, RTP, NC 27711

Mail Drop D243

- 02

Ph: (919) 541

- 1390 Fax: (919) 541

- 3207

Email: boyd.rochelle@epa.gov

From: "Palazzolo, Michael A." < Michael.Palazzolo@alcoa.com >

To: Rochelle Boyd/RTP/USEPA/US@EPA

Cc: "Robert Strieter" < bstriete@aluminum.org >

Date: 11/01/2010 12:14 PM

Subject: RE: EPA

- HQ

- OAR

- 2002

- 0031

- 0017[1].pdf

- Adobe Reader



### Rochelle,

Our Wenatchee, WA smelter operates open

- path HF monitors in the potroom roof

as a process tool. These instruments record an HF concent ration (ug/m3) in the

roof exhaust. Attached is data from two different potlines during the most recent

three months (August

– October 2010). This data shows that a factor of 10 is

overly conservative for hourly vs. annual average emissions. One potline shows a

factor of 2.7 and the other shows a factor of 5.6. So, the Association’s earlier

suggestion of a factor of 4 to 6 is a reasonable assumption.

Please let me know if you have questions regarding these data.

Regards,

Mike

Michael Palazzolo

Alcoa, Inc.

201 Isabella Street

Pittsburgh, PA 15212

- 5858

Ph: 412

- 553

- 4832

From: Boyd.Rochelle@epamail.epa.gov [ mailto:Boyd.Rochelle@epamail.epa.gov ]

Sent: Thursday, October 21, 2010 12:53 PM

To: Robert Strieter

Cc: Palazzolo, Michael A.

### 4

Subject: EPA

- HQ

- OAR

- 2002

- 0031

- 0017[1].pdf

- Adobe Reader

I am working on the Primary Aluminum RTR and the Risk Assessment Group plans to re

- run the risk

models in December and I noticed in the comments that the Association did not want us to use a factor of

10 for the acute exposure factors. In the absence of data this is the default value that they typically use.

Do you have an y data that we can use to support your argument for the 4 to 6 times the average

instead? We would have to do an Acute Effects technical support document to go along with whatever

standard we propose as to why we chose the 4 or 6 factor. Thanks.

Roche lle Boyd, 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

- 1390 Fax: (919) 541

- 3207Company and location 2006 2007 Ownership in 2007 2010

Alcoa Inc.:

Alcoa, TN 215 215 Alcoa Inc., 100%. 215

Badin, NC 120 120 Do.

-- Evansville, IN (Warrick) 309 309 Do. 309

Ferndale, WA (Intalco) 278 278 Do. 278

Frederick, MD (Eastalco) 195 195 Do.

-- Massena, NY (St. Lawrence) 125 125 Do. 125

Massena, NY 130 130 Do. 130

Mount Holly, SC 224 224 Alcoa Inc., 50.3%; Century Aluminum Co., 49.7%. 224

Rockdale, TX 267 267 Alcoa Inc., 100%. 267

Wenatchee, WA 184 184 Do. 184

Total 2,050 2,050 1732

Century Aluminum Co.:

Hawesville, KY 244 244 Century Aluminum Co., 100%. 244

Ravenswood, WV 170 170 Do. 170

Total 414 414 414

Columbia Falls Aluminum Co., Columbia Falls, MT 168 168 Glencore International AG, 100%. 168

Goldendale Aluminum Co., Goldendale, WA 160 160 Private interest, 60%; employees, 40%.

--

Noranda Aluminum Inc., New Madrid, MO 250 250 Apollo Management LP, 100%. 250

Northwest Aluminum Corp., The Dalles, OR 82

-- Private interest, 100%.

-- Ormet Primary Aluminum Corp., Hannibal, OH 265 265 Ormet Corp., 100%. 265

Rio Tinto Alcan Inc., Sebree, KY 196 196 Rio Tinto Alcan Inc., 100%. 196

Vanalco Inc., Vancouver, WA 116 116 Glencore International AG, 100%.

--

Grand total 3,700 3,620 3025

Do. Ditto. -- Zero.

1 Data are rounded to no more than three significant digits; may not add to totals shown. (thousand metric tons) TABLE 2

PRIMARY ANNUAL ALUMINUM PRODUCTION CAPACITY IN THE UNITED STATES, BY COMPANY 1

Yearend capacity